diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/atk/AccessibleWrap.cpp firefox-trunk-95.0~a1~hg20211020r596404/accessible/atk/AccessibleWrap.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/atk/AccessibleWrap.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/atk/AccessibleWrap.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -737,7 +737,7 @@
       return nullptr;
     }
 
-    LocalAccessible* accChild = accWrap->GetEmbeddedChildAt(aChildIndex);
+    LocalAccessible* accChild = accWrap->EmbeddedChildAt(aChildIndex);
     if (accChild) {
       childAtkObj = AccessibleWrap::GetAtkObject(accChild);
     } else {
@@ -752,8 +752,10 @@
       return nullptr;
     }
 
-    RemoteAccessible* child = proxy->EmbeddedChildAt(aChildIndex);
-    if (child) childAtkObj = GetWrapperFor(child);
+    Accessible* child = proxy->EmbeddedChildAt(aChildIndex);
+    if (child) {
+      childAtkObj = GetWrapperFor(child->AsRemote());
+    }
   } else {
     return nullptr;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/basetypes/Accessible.h firefox-trunk-95.0~a1~hg20211020r596404/accessible/basetypes/Accessible.h
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/basetypes/Accessible.h	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/basetypes/Accessible.h	2021-10-20 19:28:14.000000000 +0000
@@ -110,6 +110,11 @@
    */
   bool HasGenericType(AccGenericType aType) const;
 
+  /**
+   * Return embedded accessible child at the given index.
+   */
+  virtual Accessible* EmbeddedChildAt(uint32_t aIndex) = 0;
+
   // Methods that potentially access a cache.
 
   /*
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/basetypes/HyperTextAccessibleBase.cpp firefox-trunk-95.0~a1~hg20211020r596404/accessible/basetypes/HyperTextAccessibleBase.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/basetypes/HyperTextAccessibleBase.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/basetypes/HyperTextAccessibleBase.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -288,4 +288,8 @@
          startOffset <= endOffset && endOffset <= CharacterCount();
 }
 
+Accessible* HyperTextAccessibleBase::LinkAt(uint32_t aIndex) {
+  return Acc()->EmbeddedChildAt(aIndex);
+}
+
 }  // namespace mozilla::a11y
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/basetypes/HyperTextAccessibleBase.h firefox-trunk-95.0~a1~hg20211020r596404/accessible/basetypes/HyperTextAccessibleBase.h
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/basetypes/HyperTextAccessibleBase.h	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/basetypes/HyperTextAccessibleBase.h	2021-10-20 19:28:14.000000000 +0000
@@ -119,6 +119,11 @@
   bool IsValidOffset(int32_t aOffset);
   bool IsValidRange(int32_t aStartOffset, int32_t aEndOffset);
 
+  /**
+   * Return link accessible at the given index.
+   */
+  Accessible* LinkAt(uint32_t aIndex);
+
  protected:
   virtual const Accessible* Acc() const = 0;
   Accessible* Acc() {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/generic/HyperTextAccessible.h firefox-trunk-95.0~a1~hg20211020r596404/accessible/generic/HyperTextAccessible.h
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/generic/HyperTextAccessible.h	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/generic/HyperTextAccessible.h	2021-10-20 19:28:14.000000000 +0000
@@ -82,9 +82,7 @@
   /**
    * Return link accessible at the given index.
    */
-  LocalAccessible* LinkAt(uint32_t aIndex) {
-    return GetEmbeddedChildAt(aIndex);
-  }
+  LocalAccessible* LinkAt(uint32_t aIndex) { return EmbeddedChildAt(aIndex); }
 
   /**
    * Return index for the given link accessible.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/generic/LocalAccessible.cpp firefox-trunk-95.0~a1~hg20211020r596404/accessible/generic/LocalAccessible.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/generic/LocalAccessible.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/generic/LocalAccessible.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -2683,7 +2683,7 @@
   return ChildCount();
 }
 
-LocalAccessible* LocalAccessible::GetEmbeddedChildAt(uint32_t aIndex) {
+LocalAccessible* LocalAccessible::EmbeddedChildAt(uint32_t aIndex) {
   if (mStateFlags & eHasTextKids) {
     if (!mEmbeddedObjCollector) {
       mEmbeddedObjCollector.reset(new EmbeddedObjCollector(this));
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/generic/LocalAccessible.h firefox-trunk-95.0~a1~hg20211020r596404/accessible/generic/LocalAccessible.h
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/generic/LocalAccessible.h	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/generic/LocalAccessible.h	2021-10-20 19:28:14.000000000 +0000
@@ -401,7 +401,7 @@
   /**
    * Return embedded accessible child at the given index.
    */
-  LocalAccessible* GetEmbeddedChildAt(uint32_t aIndex);
+  virtual LocalAccessible* EmbeddedChildAt(uint32_t aIndex) override;
 
   /**
    * Return index of the given embedded accessible child.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/ipc/RemoteAccessibleBase.cpp firefox-trunk-95.0~a1~hg20211020r596404/accessible/ipc/RemoteAccessibleBase.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/ipc/RemoteAccessibleBase.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/ipc/RemoteAccessibleBase.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -113,7 +113,7 @@
 }
 
 template <class Derived>
-Derived* RemoteAccessibleBase<Derived>::EmbeddedChildAt(size_t aChildIdx) {
+Accessible* RemoteAccessibleBase<Derived>::EmbeddedChildAt(uint32_t aChildIdx) {
   size_t index = 0, kids = mChildren.Length();
   for (size_t i = 0; i < kids; i++) {
     if (!mChildren[i]->IsEmbeddedObject()) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/ipc/RemoteAccessibleBase.h firefox-trunk-95.0~a1~hg20211020r596404/accessible/ipc/RemoteAccessibleBase.h
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/ipc/RemoteAccessibleBase.h	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/ipc/RemoteAccessibleBase.h	2021-10-20 19:28:14.000000000 +0000
@@ -110,7 +110,7 @@
   }
   uint32_t EmbeddedChildCount() const;
   int32_t IndexOfEmbeddedChild(const Derived* aChild);
-  Derived* EmbeddedChildAt(size_t aChildIdx);
+  virtual Accessible* EmbeddedChildAt(uint32_t aChildIdx) override;
 
   void Shutdown();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/tests/browser/bounds/browser.ini firefox-trunk-95.0~a1~hg20211020r596404/accessible/tests/browser/bounds/browser.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/tests/browser/bounds/browser.ini	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/tests/browser/bounds/browser.ini	2021-10-20 19:28:14.000000000 +0000
@@ -7,8 +7,9 @@
   !/accessible/tests/mochitest/letters.gif
 
 [browser_test_resolution.js]
-skip-if = (e10s && os == 'win') || (webrender) # bug 1372296, bug 1734271
+skip-if = e10s && os == 'win' # bug 1372296
 [browser_test_zoom.js]
+skip-if = webrender # Bug 1734271
 [browser_test_zoom_text.js]
 https_first_disabled = true
 skip-if = e10s && os == 'win' # bug 1372296
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/tests/browser/e10s/browser_caching_text.js firefox-trunk-95.0~a1~hg20211020r596404/accessible/tests/browser/e10s/browser_caching_text.js
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/tests/browser/e10s/browser_caching_text.js	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/tests/browser/e10s/browser_caching_text.js	2021-10-20 19:28:14.000000000 +0000
@@ -11,6 +11,9 @@
   "accessibility.cache.enabled",
   false
 );
+// Some RemoteAccessible methods aren't supported on Windows when the cache is
+// disabled.
+const isWinNoCache = !isCacheEnabled && AppConstants.platform == "win";
 
 /**
  * Test line and word offsets for various cases for both local and remote
@@ -30,7 +33,7 @@
   async function(browser, docAcc) {
     for (const id of ["br", "pre"]) {
       const acc = findAccessibleChildByID(docAcc, id);
-      if (!isCacheEnabled && AppConstants.platform == "win") {
+      if (isWinNoCache) {
         todo(
           false,
           "Cache disabled, so RemoteAccessible doesn't support CharacterCount on Windows"
@@ -77,3 +80,24 @@
   },
   { chrome: true, topLevel: true, iframe: true, remoteIframe: true }
 );
+
+/**
+ * Test HyperText embedded object methods.
+ */
+addAccessibleTask(
+  `<div id="container">a<a id="link" href="https://example.com/">b</a>c</div>`,
+  async function(browser, docAcc) {
+    const container = findAccessibleChildByID(docAcc, "container", [
+      nsIAccessibleHyperText,
+    ]);
+    let embeddedAcc = container.getLinkAt(0);
+    queryInterfaces(embeddedAcc, [nsIAccessible]);
+    is(getAccessibleDOMNodeID(embeddedAcc), "link", "LinkAt 0 is the link");
+  },
+  {
+    chrome: true,
+    topLevel: !isWinNoCache,
+    iframe: !isWinNoCache,
+    remoteIframe: !isWinNoCache,
+  }
+);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/tests/mochitest/events/slow_image.sjs firefox-trunk-95.0~a1~hg20211020r596404/accessible/tests/mochitest/events/slow_image.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/tests/mochitest/events/slow_image.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/tests/mochitest/events/slow_image.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -12,7 +12,10 @@
 
 // stolen from file_blocked_script.sjs
 function setGlobalState(data, key) {
-  x = { data: data, QueryInterface: function(iid) { return this } };
+  x = {
+    data,
+    QueryInterface: ChromeUtils.generateQI([]),
+  };
   x.wrappedJSObject = x;
   setObjectState(key, x);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2Accessible.cpp firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2Accessible.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2Accessible.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2Accessible.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -284,7 +284,10 @@
   }
   AccessibleWrap* acc = LocalAcc();
   if (!acc) {
-    return E_NOTIMPL;  // XXX Not supported for RemoteAccessible yet.
+    // XXX Not supported for RemoteAccessible yet. However, don't return
+    // E_NOTIMPL because returning an error here will cause screen readers to
+    // assume defunct.
+    return S_OK;
   }
 
   uint64_t state;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2AccessibleHyperlink.cpp firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2AccessibleHyperlink.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2AccessibleHyperlink.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2AccessibleHyperlink.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -14,6 +14,10 @@
 
 using namespace mozilla::a11y;
 
+Accessible* ia2AccessibleHyperlink::Acc() {
+  return static_cast<MsaaAccessible*>(this)->Acc();
+}
+
 AccessibleWrap* ia2AccessibleHyperlink::LocalAcc() {
   return static_cast<MsaaAccessible*>(this)->LocalAcc();
 }
@@ -27,8 +31,8 @@
   *ppv = nullptr;
 
   if (IID_IAccessibleHyperlink == iid) {
-    auto accWrap = LocalAcc();
-    if (!accWrap || !accWrap->IsLink()) {
+    Accessible* acc = Acc();
+    if (!acc || !acc->IsLink()) {
       return E_NOINTERFACE;
     }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2AccessibleHyperlink.h firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2AccessibleHyperlink.h
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2AccessibleHyperlink.h	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2AccessibleHyperlink.h	2021-10-20 19:28:14.000000000 +0000
@@ -15,6 +15,7 @@
 
 namespace mozilla {
 namespace a11y {
+class Accessible;
 class AccessibleWrap;
 
 class ia2AccessibleHyperlink : public ia2AccessibleAction,
@@ -44,6 +45,7 @@
       /* [retval][out] */ boolean* valid);
 
  private:
+  Accessible* Acc();
   AccessibleWrap* LocalAcc();
 };
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2AccessibleHypertext.cpp firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2AccessibleHypertext.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2AccessibleHypertext.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2AccessibleHypertext.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -14,7 +14,12 @@
 
 using namespace mozilla::a11y;
 
-HyperTextAccessibleWrap* ia2AccessibleHypertext::TextAcc() {
+HyperTextAccessibleBase* ia2AccessibleHypertext::TextAcc() {
+  Accessible* acc = Acc();
+  return acc ? acc->AsHyperTextBase() : nullptr;
+}
+
+HyperTextAccessibleWrap* ia2AccessibleHypertext::LocalTextAcc() {
   AccessibleWrap* acc = LocalAcc();
   return static_cast<HyperTextAccessibleWrap*>(acc);
 }
@@ -32,7 +37,7 @@
     if (aIID == IID_IAccessibleText) {
       *aInstancePtr =
           static_cast<IAccessibleText*>(static_cast<ia2AccessibleText*>(this));
-    } else if (aIID == IID_IAccessibleHypertext && isLocal) {
+    } else if (aIID == IID_IAccessibleHypertext) {
       *aInstancePtr = static_cast<IAccessibleHypertext*>(this);
     } else if (aIID == IID_IAccessibleHypertext2 && isLocal) {
       *aInstancePtr = static_cast<IAccessibleHypertext2*>(this);
@@ -57,7 +62,7 @@
 
   *aHyperlinkCount = 0;
 
-  HyperTextAccessibleWrap* hyperText = TextAcc();
+  HyperTextAccessibleWrap* hyperText = LocalTextAcc();
   if (!hyperText) return CO_E_OBJNOTCONNECTED;
 
   *aHyperlinkCount = hyperText->LinkCount();
@@ -71,19 +76,15 @@
 
   *aHyperlink = nullptr;
 
-  LocalAccessible* hyperLink;
-  HyperTextAccessibleWrap* hyperText = TextAcc();
+  HyperTextAccessibleBase* hyperText = TextAcc();
   if (!hyperText) {
     return CO_E_OBJNOTCONNECTED;
   }
 
-  hyperLink = hyperText->LinkAt(aLinkIndex);
+  Accessible* hyperLink = hyperText->LinkAt(aLinkIndex);
 
   if (!hyperLink) return E_FAIL;
 
-  // GetNativeInterface returns an IAccessible, but we need an
-  // IAccessibleHyperlink, so use MsaaAccessible::GetFrom instead and let
-  // RefPtr cast it.
   RefPtr<IAccessibleHyperlink> result = MsaaAccessible::GetFrom(hyperLink);
   result.forget(aHyperlink);
   return S_OK;
@@ -96,7 +97,7 @@
 
   *aHyperlinkIndex = 0;
 
-  HyperTextAccessibleWrap* hyperAcc = TextAcc();
+  HyperTextAccessibleWrap* hyperAcc = LocalTextAcc();
   if (!hyperAcc) return CO_E_OBJNOTCONNECTED;
 
   *aHyperlinkIndex = hyperAcc->LinkIndexAtOffset(aCharIndex);
@@ -113,7 +114,7 @@
   *aHyperlinks = nullptr;
   *aNHyperlinks = 0;
 
-  HyperTextAccessibleWrap* hyperText = TextAcc();
+  HyperTextAccessibleWrap* hyperText = LocalTextAcc();
   if (!hyperText) {
     return CO_E_OBJNOTCONNECTED;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2AccessibleHypertext.h firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2AccessibleHypertext.h
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2AccessibleHypertext.h	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2AccessibleHypertext.h	2021-10-20 19:28:14.000000000 +0000
@@ -18,6 +18,7 @@
 
 namespace mozilla {
 namespace a11y {
+class HyperTextAccessibleBase;
 class HyperTextAccessibleWrap;
 
 class ia2AccessibleHypertext : public ia2AccessibleText,
@@ -59,7 +60,8 @@
   using MsaaAccessible::MsaaAccessible;
 
  private:
-  HyperTextAccessibleWrap* TextAcc();
+  HyperTextAccessibleBase* TextAcc();
+  HyperTextAccessibleWrap* LocalTextAcc();
 };
 
 }  // namespace a11y
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2AccessibleValue.cpp firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2AccessibleValue.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/ia2/ia2AccessibleValue.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/ia2/ia2AccessibleValue.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -34,7 +34,7 @@
   *ppv = nullptr;
 
   if (IID_IAccessibleValue == iid) {
-    AccessibleWrap* valueAcc = LocalAcc();
+    Accessible* valueAcc = Acc();
     if (valueAcc && valueAcc->HasNumericValue()) {
       RefPtr<IAccessibleValue> result = this;
       result.forget(ppv);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/msaa/MsaaAccessible.cpp firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/msaa/MsaaAccessible.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/windows/msaa/MsaaAccessible.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/windows/msaa/MsaaAccessible.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -860,12 +860,12 @@
     if (SUCCEEDED(hr)) return hr;
   }
 
-  if (!*ppv && localAcc) {
+  if (!*ppv) {
     HRESULT hr = ia2AccessibleHyperlink::QueryInterface(iid, ppv);
     if (SUCCEEDED(hr)) return hr;
   }
 
-  if (!*ppv && localAcc) {
+  if (!*ppv) {
     HRESULT hr = ia2AccessibleValue::QueryInterface(iid, ppv);
     if (SUCCEEDED(hr)) return hr;
   }
@@ -1161,8 +1161,16 @@
   if (accessible) {
     return accessible->get_accState(kVarChildIdSelf, pvarState);
   }
+
   if (mAcc->IsRemote()) {
-    return E_NOTIMPL;  // XXX Not supported for RemoteAccessible yet.
+    // XXX Not supported for RemoteAccessible yet.
+    if (mAcc->IsDoc()) {
+      // XXX We don't cache whether a document is editable yet. Most documents
+      // aren't. To facilitate testing of the cache with screen readers, always
+      // expose READONLY here.
+      pvarState->lVal |= STATE_SYSTEM_READONLY;
+    }
+    return S_OK;
   }
 
   // MSAA only has 31 states and the lowest 31 bits of our state bit mask
@@ -1523,13 +1531,7 @@
                                    kVarChildIdSelf);
   }
 
-  LocalAccessible* localAcc = LocalAcc();
-  if (!localAcc) {
-    return E_NOTIMPL;  // XXX Not supported for RemoteAccessible yet.
-  }
-
-  nsIntRect rect = localAcc->Bounds();
-
+  nsIntRect rect = Acc()->Bounds();
   *pxLeft = rect.X();
   *pyTop = rect.Y();
   *pcxWidth = rect.Width();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/accessible/xpcom/xpcAccessibleHyperText.cpp firefox-trunk-95.0~a1~hg20211020r596404/accessible/xpcom/xpcAccessibleHyperText.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/accessible/xpcom/xpcAccessibleHyperText.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/accessible/xpcom/xpcAccessibleHyperText.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -674,15 +674,14 @@
 
   if (!mIntl) return NS_ERROR_FAILURE;
 
-  if (mIntl->IsLocal()) {
-    NS_IF_ADDREF(*aLink = ToXPC(IntlLocal()->LinkAt(aIndex)));
-  } else {
 #if defined(XP_WIN)
+  if (mIntl->IsRemote() &&
+      !StaticPrefs::accessibility_cache_enabled_AtStartup()) {
     return NS_ERROR_NOT_IMPLEMENTED;
-#else
-    NS_IF_ADDREF(*aLink = ToXPC(mIntl->AsRemote()->LinkAt(aIndex)));
-#endif
   }
+#endif
+
+  NS_IF_ADDREF(*aLink = ToXPC(Intl()->LinkAt(aIndex)));
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/app/nsBrowserApp.cpp firefox-trunk-95.0~a1~hg20211020r596404/browser/app/nsBrowserApp.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/app/nsBrowserApp.cpp	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/app/nsBrowserApp.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -352,6 +352,9 @@
     // even if the last window is closed.
     ::putenv(const_cast<char*>("MOZ_APP_ALLOW_WINDOWLESS=1"));
 #  endif
+#  if defined(XP_MACOSX)
+    ::putenv(const_cast<char*>("MOZ_APP_NO_DOCK=1"));
+#  endif
   }
 #endif
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/app/profile/firefox.js firefox-trunk-95.0~a1~hg20211020r596404/browser/app/profile/firefox.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/app/profile/firefox.js	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/app/profile/firefox.js	2021-10-20 19:28:14.000000000 +0000
@@ -1208,6 +1208,16 @@
   // content process is killed when all windows are closed, so a change will
   // take effect when the 1st window is opened.
   pref("security.sandbox.content.level", 3);
+
+  // Disconnect content processes from the window server. Depends on
+  // out-of-process WebGL and non-native theming. i.e., both in-process WebGL
+  // and native theming depend on content processes having a connection to the
+  // window server. Window server disconnection is automatically disabled (and
+  // this pref overridden) if OOP WebGL is disabled. OOP WebGL is disabled
+  // for some tests.
+  #if defined(NIGHTLY_BUILD)
+    pref("security.sandbox.content.mac.disconnect-windowserver", true);
+  #endif
 #endif
 
 #if defined(XP_LINUX) && defined(MOZ_SANDBOX)
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/browser.css firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/browser.css
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/browser.css	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/browser.css	2021-10-20 19:28:14.000000000 +0000
@@ -1349,15 +1349,6 @@
   animation-duration: 2s;
 }
 
-/* This effectively simulates a focus outline. */
-#UITourHighlight[active="focus-outline"] {
-  background-color: transparent;
-  border: 2px solid var(--focus-outline-color);
-  border-radius: 4px;
-
-  animation-name: none;
-}
-
 /* Combined context-menu items */
 #context-navigation > .menuitem-iconic > .menu-iconic-text,
 #context-navigation > .menuitem-iconic > .menu-accel-container {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/about/csp_iframe.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/about/csp_iframe.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/about/csp_iframe.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/about/csp_iframe.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -3,7 +3,11 @@
 
 function handleRequest(request, response) {
   // let's enjoy the amazing CSP setting
-  response.setHeader("Content-Security-Policy", "frame-ancestors 'self'", false);
+  response.setHeader(
+    "Content-Security-Policy",
+    "frame-ancestors 'self'",
+    false
+  );
 
   // let's avoid caching issues
   response.setHeader("Pragma", "no-cache");
@@ -18,8 +22,8 @@
   let cookie = request.hasHeader("Cookie")
     ? request.getHeader("Cookie")
     : "<html><body>" +
-    "<h2 id='strictCookie'>No same site strict cookie header</h2>" +
-    "</body></html>";
+      "<h2 id='strictCookie'>No same site strict cookie header</h2>" +
+      "</body></html>";
   response.write(cookie);
 
   if (!request.hasHeader("Cookie")) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/about/print_postdata.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/about/print_postdata.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/about/print_postdata.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/about/print_postdata.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -1,7 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
@@ -13,8 +15,9 @@
     var avail;
     var bytes = [];
 
-    while ((avail = body.available()) > 0)
+    while ((avail = body.available()) > 0) {
       Array.prototype.push.apply(bytes, body.readByteArray(avail));
+    }
 
     var data = String.fromCharCode.apply(null, bytes);
     response.bodyOutputStream.write(data, data.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/about/xfo_iframe.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/about/xfo_iframe.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/about/xfo_iframe.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/about/xfo_iframe.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -13,7 +13,8 @@
   response.setStatusLine(request.httpVersion, 200);
 
   response.setHeader("Content-Type", "text/html", false);
-  let txt = "<html><head><title>XFO page</title></head>" +
+  let txt =
+    "<html><head><title>XFO page</title></head>" +
     "<body><h1>" +
     "XFO blocked page opened in new window!" +
     "</h1></body></html>";
@@ -22,8 +23,8 @@
   let cookie = request.hasHeader("Cookie")
     ? request.getHeader("Cookie")
     : "<html><body>" +
-    "<h2 id='strictCookie'>No same site strict cookie header</h2></body>" +
-    "</html>";
+      "<h2 id='strictCookie'>No same site strict cookie header</h2></body>" +
+      "</html>";
   response.write(cookie);
 
   if (!request.hasHeader("Cookie")) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/favicons/cookie_favicon.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/favicons/cookie_favicon.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/favicons/cookie_favicon.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/favicons/cookie_favicon.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -17,6 +17,9 @@
 
   response.setStatusLine(request.httpVersion, 302, "Moved Temporarily");
   response.setHeader("Set-Cookie", `faviconCookie=${++state}`);
-  response.setHeader("Location", "http://example.com/browser/browser/base/content/test/favicons/moz.png");
+  response.setHeader(
+    "Location",
+    "http://example.com/browser/browser/base/content/test/favicons/moz.png"
+  );
   setState("cache_cookie", `${state}`);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/browser_star_hsts.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/browser_star_hsts.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/browser_star_hsts.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/browser_star_hsts.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -2,8 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   let page = "<!DOCTYPE html><html><body><p>HSTS page</p></body></html>";
   response.setStatusLine(request.httpVersion, "200", "OK");
   response.setHeader("Strict-Transport-Security", "max-age=60");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/bug792517.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/bug792517.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/bug792517.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/bug792517.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -3,11 +3,11 @@
  */
 
 function handleRequest(aRequest, aResponse) {
- aResponse.setStatusLine(aRequest.httpVersion, 200);
- if (aRequest.hasHeader('Cookie')) {
-   aResponse.write("cookie-present");
- } else {
-   aResponse.setHeader("Set-Cookie", "foopy=1");
-   aResponse.write("cookie-not-present");
- }
+  aResponse.setStatusLine(aRequest.httpVersion, 200);
+  if (aRequest.hasHeader("Cookie")) {
+    aResponse.write("cookie-present");
+  } else {
+    aResponse.setHeader("Set-Cookie", "foopy=1");
+    aResponse.write("cookie-not-present");
+  }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/download_with_content_disposition_header.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/download_with_content_disposition_header.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/download_with_content_disposition_header.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/download_with_content_disposition_header.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -2,20 +2,17 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   let page = "download";
   response.setStatusLine(request.httpVersion, "200", "OK");
 
-  let [first, second] = request.queryString.split('=');
+  let [first, second] = request.queryString.split("=");
   let headerStr = first;
   if (second !== "none") {
     headerStr += "; filename=" + second;
   }
 
-  response.setHeader(
-    "Content-Disposition",
-    headerStr);
+  response.setHeader("Content-Disposition", headerStr);
   response.setHeader("Content-Type", "text/plain", false);
   response.setHeader("Content-Length", page.length + "", false);
   response.write(page);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/print_postdata.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/print_postdata.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/print_postdata.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/print_postdata.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -1,7 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
@@ -13,8 +15,9 @@
     var avail;
     var bytes = [];
 
-    while ((avail = body.available()) > 0)
+    while ((avail = body.available()) > 0) {
       Array.prototype.push.apply(bytes, body.readByteArray(avail));
+    }
 
     var data = String.fromCharCode.apply(null, bytes);
     response.bodyOutputStream.write(data, data.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/redirect_download.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/redirect_download.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/redirect_download.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/redirect_download.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -5,5 +5,7 @@
   response.setStatusLine("1.1", 302, "Found");
   response.setHeader(
     "Location",
-    `download_with_content_disposition_header.sjs?${queryStr}`, false);
+    `download_with_content_disposition_header.sjs?${queryStr}`,
+    false
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/refresh_header.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/refresh_header.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/refresh_header.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/refresh_header.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -21,4 +21,4 @@
   response.setStatusLine(request.httpVersion, "200", "Found");
   response.setHeader("refresh", `${delay}; url=${page}`);
   response.write("OK");
-}
\ No newline at end of file
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/refresh_meta.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/refresh_meta.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/general/refresh_meta.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/general/refresh_meta.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -33,4 +33,4 @@
   response.setStatusLine(request.httpVersion, "200", "Found");
   response.setHeader("Cache-Control", "no-cache", false);
   response.write(html);
-}
\ No newline at end of file
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/permissions/browser_autoplay_blocked_slow.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/permissions/browser_autoplay_blocked_slow.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/permissions/browser_autoplay_blocked_slow.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/permissions/browser_autoplay_blocked_slow.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -25,8 +25,12 @@
 
   let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
   resp.write(AUTOPLAY_HTML);
-  timer.init(() => {
-    resp.write("");
-    resp.finish();
-  }, DELAY_MS, Ci.nsITimer.TYPE_ONE_SHOT);
+  timer.init(
+    () => {
+      resp.write("");
+      resp.finish();
+    },
+    DELAY_MS,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/protectionsUI/cookieServer.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/protectionsUI/cookieServer.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/protectionsUI/cookieServer.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/protectionsUI/cookieServer.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -4,13 +4,17 @@
 
 // A 1x1 PNG image.
 // Source: https://commons.wikimedia.org/wiki/File:1x1.png (Public Domain)
-const IMAGE = atob("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
-                   "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=");
+const IMAGE = atob(
+  "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
+    "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII="
+);
 
 function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 200);
-  if (request.queryString &&
-      request.queryString.includes("type=image-no-cookie")) {
+  if (
+    request.queryString &&
+    request.queryString.includes("type=image-no-cookie")
+  ) {
     response.setHeader("Content-Type", "image/png", false);
     response.write(IMAGE);
   } else {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/referrer/file_referrer_policyserver_attr.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/referrer/file_referrer_policyserver_attr.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/referrer/file_referrer_policyserver_attr.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/referrer/file_referrer_policyserver_attr.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -3,8 +3,7 @@
  * Used in browser_referrer_*.js, bug 1113431.
  * Arguments: ?scheme=http://&policy=origin&rel=noreferrer
  */
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   Components.utils.importGlobalProperties(["URLSearchParams"]);
   let query = new URLSearchParams(request.queryString);
 
@@ -14,12 +13,13 @@
   let cross = query.get("cross");
 
   let host = cross ? "example.com" : "test1.example.com";
-  let linkUrl = scheme + host +
-                "/browser/browser/base/content/test/referrer/" +
-                "file_referrer_testserver.sjs";
+  let linkUrl =
+    scheme +
+    host +
+    "/browser/browser/base/content/test/referrer/" +
+    "file_referrer_testserver.sjs";
 
-  let referrerPolicy =
-      policy ? `referrerpolicy="${policy}"` : "";
+  let referrerPolicy = policy ? `referrerpolicy="${policy}"` : "";
 
   let html = `<!DOCTYPE HTML>
               <html>
@@ -28,7 +28,9 @@
               <title>Test referrer</title>
               </head>
               <body>
-              <a id='testlink' href='${linkUrl}' ${referrerPolicy} ${rel ? ` rel='${rel}'` : ""}>
+              <a id='testlink' href='${linkUrl}' ${referrerPolicy} ${
+    rel ? ` rel='${rel}'` : ""
+  }>
               referrer test link</a>
               </body>
               </html>`;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/referrer/file_referrer_policyserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/referrer/file_referrer_policyserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/referrer/file_referrer_policyserver.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/referrer/file_referrer_policyserver.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -3,8 +3,7 @@
  * Used in browser_referrer_*.js, bug 1113431.
  * Arguments: ?scheme=http://&policy=origin&rel=noreferrer
  */
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   Components.utils.importGlobalProperties(["URLSearchParams"]);
   let query = new URLSearchParams(request.queryString);
 
@@ -14,11 +13,14 @@
   let cross = query.get("cross");
 
   let host = cross ? "example.com" : "test1.example.com";
-  let linkUrl = scheme + host +
-                "/browser/browser/base/content/test/referrer/" +
-                "file_referrer_testserver.sjs";
-  let metaReferrerTag =
-      policy ? `<meta name='referrer' content='${policy}'>` : "";
+  let linkUrl =
+    scheme +
+    host +
+    "/browser/browser/base/content/test/referrer/" +
+    "file_referrer_testserver.sjs";
+  let metaReferrerTag = policy
+    ? `<meta name='referrer' content='${policy}'>`
+    : "";
 
   let html = `<!DOCTYPE HTML>
               <html>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/referrer/file_referrer_testserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/referrer/file_referrer_testserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/referrer/file_referrer_testserver.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/referrer/file_referrer_testserver.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -2,8 +2,7 @@
  * Renders the HTTP Referer header up to the second path slash.
  * Used in browser_referrer_*.js, bug 1113431.
  */
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   let referrer = "";
   try {
     referrer = request.getHeader("referer");
@@ -12,7 +11,10 @@
   }
 
   // Strip it past the first path slash. Makes tests easier to read.
-  referrer = referrer.split("/").slice(0, 4).join("/");
+  referrer = referrer
+    .split("/")
+    .slice(0, 4)
+    .join("/");
 
   let html = `<!DOCTYPE HTML>
              <html>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/siteIdentity/file_bug906190.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/siteIdentity/file_bug906190.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/siteIdentity/file_bug906190.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/siteIdentity/file_bug906190.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -1,9 +1,10 @@
 function handleRequest(request, response) {
   var page = "<!DOCTYPE html><html><body>bug 906190</body></html>";
-  var path = "https://test1.example.com/browser/browser/base/content/test/siteIdentity/";
+  var path =
+    "https://test1.example.com/browser/browser/base/content/test/siteIdentity/";
   var url;
 
-  if (request.queryString.includes('bad-redirection=1')) {
+  if (request.queryString.includes("bad-redirection=1")) {
     url = path + "this_page_does_not_exist.html";
   } else {
     url = path + "file_bug906190_redirected.html";
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/siteIdentity/test_mcb_redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/siteIdentity/test_mcb_redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/base/content/test/siteIdentity/test_mcb_redirect.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/base/content/test/siteIdentity/test_mcb_redirect.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -1,14 +1,17 @@
 function handleRequest(request, response) {
-  var page = "<!DOCTYPE html><html><body>bug 418354 and bug 1082837</body></html>";
+  var page =
+    "<!DOCTYPE html><html><body>bug 418354 and bug 1082837</body></html>";
 
-  if (request.queryString === "script") { 
-    var redirect = "http://example.com/browser/browser/base/content/test/siteIdentity/test_mcb_redirect.js";
+  if (request.queryString === "script") {
+    var redirect =
+      "http://example.com/browser/browser/base/content/test/siteIdentity/test_mcb_redirect.js";
     response.setHeader("Cache-Control", "no-cache", false);
   } else if (request.queryString === "image_http") {
     var redirect = "http://example.com/tests/image/test/mochitest/blue.png";
     response.setHeader("Cache-Control", "max-age=3600", false);
   } else if (request.queryString === "image_redirect_http_sjs") {
-    var redirect = "http://example.com/browser/browser/base/content/test/siteIdentity/test_mcb_redirect.sjs?image_redirect_https";
+    var redirect =
+      "http://example.com/browser/browser/base/content/test/siteIdentity/test_mcb_redirect.sjs?image_redirect_https";
     response.setHeader("Cache-Control", "max-age=3600", false);
   } else if (request.queryString === "image_redirect_https") {
     var redirect = "https://example.com/tests/image/test/mochitest/blue.png";
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/about/AboutRedirector.cpp firefox-trunk-95.0~a1~hg20211020r596404/browser/components/about/AboutRedirector.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/about/AboutRedirector.cpp	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/about/AboutRedirector.cpp	2021-10-20 19:28:14.000000000 +0000
@@ -60,6 +60,7 @@
      nsIAboutModule::ALLOW_SCRIPT},
     {"framecrashed", "chrome://browser/content/aboutFrameCrashed.html",
      nsIAboutModule::URI_SAFE_FOR_UNTRUSTED_CONTENT |
+         nsIAboutModule::URI_CAN_LOAD_IN_CHILD |
          nsIAboutModule::HIDE_FROM_ABOUTABOUT},
     {"logins", "chrome://browser/content/aboutlogins/aboutLogins.html",
      nsIAboutModule::ALLOW_SCRIPT | nsIAboutModule::URI_MUST_LOAD_IN_CHILD |
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/BrowserGlue.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/BrowserGlue.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/BrowserGlue.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/BrowserGlue.jsm	2021-10-20 19:28:14.000000000 +0000
@@ -89,7 +89,6 @@
   TelemetryUtils: "resource://gre/modules/TelemetryUtils.jsm",
   TRRRacer: "resource:///modules/TRRPerformance.jsm",
   UIState: "resource://services-sync/UIState.jsm",
-  UITour: "resource:///modules/UITour.jsm",
   UrlbarQuickSuggest: "resource:///modules/UrlbarQuickSuggest.jsm",
   UrlbarPrefs: "resource:///modules/UrlbarPrefs.jsm",
   WebChannel: "resource://gre/modules/WebChannel.jsm",
@@ -2189,6 +2188,39 @@
     Services.wm.addListener(windowListener);
   },
 
+  _monitorGPCPref() {
+    const FEATURE_PREF_ENABLED = "privacy.globalprivacycontrol.enabled";
+    const FUNCTIONALITY_PREF_ENABLED =
+      "privacy.globalprivacycontrol.functionality.enabled";
+    const PREF_WAS_ENABLED = "privacy.globalprivacycontrol.was_ever_enabled";
+    const _checkGPCPref = async () => {
+      const feature_enabled = Services.prefs.getBoolPref(
+        FEATURE_PREF_ENABLED,
+        false
+      );
+      const functionality_enabled = Services.prefs.getBoolPref(
+        FUNCTIONALITY_PREF_ENABLED,
+        false
+      );
+      const was_enabled = Services.prefs.getBoolPref(PREF_WAS_ENABLED, false);
+      let value = 0;
+      if (feature_enabled && functionality_enabled) {
+        value = 1;
+        Services.prefs.setBoolPref(PREF_WAS_ENABLED, true);
+      } else if (was_enabled) {
+        value = 2;
+      }
+      Services.telemetry.scalarSet(
+        "security.global_privacy_control_enabled",
+        value
+      );
+    };
+
+    Services.prefs.addObserver(FEATURE_PREF_ENABLED, _checkGPCPref);
+    Services.prefs.addObserver(FUNCTIONALITY_PREF_ENABLED, _checkGPCPref);
+    _checkGPCPref();
+  },
+
   // All initial windows have opened.
   _onWindowsRestored: function BG__onWindowsRestored() {
     if (this._windowsWereRestored) {
@@ -2266,6 +2298,7 @@
     if (AppConstants.NIGHTLY_BUILD) {
       this._monitorTranslationsPref();
     }
+    this._monitorGPCPref();
   },
 
   /**
@@ -4071,11 +4104,10 @@
       {
         "l10n-id": "restore-session-startup-suggestion-button",
         callback: () => {
-          UITour.getTarget(win, "history").then(historyMenu => {
-            UITour.showHighlight(win, historyMenu, "focus-outline", {
-              autohide: true,
-            });
-          });
+          win.PanelUI.selectAndMarkItem([
+            "appMenu-history-button",
+            "appMenu-restoreSession",
+          ]);
         },
       },
     ];
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/contextualidentity/test/browser/saveLink.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/contextualidentity/test/browser/saveLink.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/contextualidentity/test/browser/saveLink.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/contextualidentity/test/browser/saveLink.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -1,6 +1,7 @@
 const HTTP_ORIGIN = "http://example.com";
 const HTTPS_ORIGIN = "https://example.com";
-const URI_PATH = "/browser/browser/components/contextualidentity/test/browser/saveLink.sjs";
+const URI_PATH =
+  "/browser/browser/components/contextualidentity/test/browser/saveLink.sjs";
 
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 
@@ -11,7 +12,12 @@
   if (params.has("UCI")) {
     aResponse.setStatusLine(aRequest.httpVersion, 200);
     aResponse.setHeader("Set-Cookie", "UCI=" + params.get("UCI"));
-    aResponse.write("<html><body><a href='" + HTTPS_ORIGIN + URI_PATH + "?redirect=1' id='fff'>this is a link</a></body></html>");
+    aResponse.write(
+      "<html><body><a href='" +
+        HTTPS_ORIGIN +
+        URI_PATH +
+        "?redirect=1' id='fff'>this is a link</a></body></html>"
+    );
     return;
   }
 
@@ -19,7 +25,11 @@
   // if we are able to follow it.
   if (params.has("redirect")) {
     aResponse.setStatusLine(aRequest.httpVersion, 302, "Found");
-    aResponse.setHeader("Location", HTTP_ORIGIN + URI_PATH + "?download=1", false);
+    aResponse.setHeader(
+      "Location",
+      HTTP_ORIGIN + URI_PATH + "?download=1",
+      false
+    );
     aResponse.write("Redirect!");
     return;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/customizableui/content/panelUI.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/customizableui/content/panelUI.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/customizableui/content/panelUI.js	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/customizableui/content/panelUI.js	2021-10-20 19:28:14.000000000 +0000
@@ -717,6 +717,87 @@
     }
   },
 
+  /**
+   * Selects and marks an item by id from the main view. The ids are an array,
+   * the first in the main view and the later ids in subsequent subviews that
+   * become marked when the user opens the subview. The subview marking is
+   * cancelled if a different subview is opened.
+   */
+  async selectAndMarkItem(itemIds) {
+    // This shouldn't really occur, but return early just in case.
+    if (document.documentElement.hasAttribute("customizing")) {
+      return;
+    }
+
+    // This function was triggered from a button while the menu was
+    // already open, so the panel should be in the process of hiding.
+    // Wait for the panel to hide first, then reopen it.
+    if (this.panel.state == "hiding") {
+      await new Promise(resolve => {
+        this.panel.addEventListener("popuphidden", resolve, { once: true });
+      });
+    }
+
+    if (this.panel.state != "open") {
+      await new Promise(resolve => {
+        this.panel.addEventListener("ViewShown", resolve, { once: true });
+        this.show();
+      });
+    }
+
+    let currentView;
+
+    let viewShownCB = event => {
+      viewHidingCB();
+
+      if (itemIds.length) {
+        let subItem = window.document.getElementById(itemIds[0]);
+        if (event.target.id == subItem?.closest("panelview")?.id) {
+          Services.tm.dispatchToMainThread(() => {
+            markItem(event.target);
+          });
+        } else {
+          itemIds = [];
+        }
+      }
+    };
+
+    let viewHidingCB = () => {
+      if (currentView) {
+        currentView.ignoreMouseMove = false;
+      }
+      currentView = null;
+    };
+
+    let popupHiddenCB = () => {
+      viewHidingCB();
+      this.panel.removeEventListener("ViewShown", viewShownCB);
+    };
+
+    let markItem = viewNode => {
+      let id = itemIds.shift();
+      let item = window.document.getElementById(id);
+      item.setAttribute("tabindex", "-1");
+
+      currentView = PanelView.forNode(viewNode);
+      currentView.selectedElement = item;
+      currentView.focusSelectedElement(true);
+
+      // Prevent the mouse from changing the highlight temporarily.
+      // This flag gets removed when the view is hidden or a key
+      // is pressed.
+      currentView.ignoreMouseMove = true;
+
+      if (itemIds.length) {
+        this.panel.addEventListener("ViewShown", viewShownCB, { once: true });
+      }
+      this.panel.addEventListener("ViewHiding", viewHidingCB, { once: true });
+    };
+
+    this.panel.addEventListener("popuphidden", popupHiddenCB, { once: true });
+    markItem(this.mainView);
+  },
+
   updateNotifications(notificationsChanged) {
     let notifications = this._notifications;
     if (!notifications || !notifications.length) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/customizableui/PanelMultiView.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/customizableui/PanelMultiView.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/customizableui/PanelMultiView.jsm	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/customizableui/PanelMultiView.jsm	2021-10-20 19:28:14.000000000 +0000
@@ -1216,7 +1216,11 @@
         currentView.keyNavigation(aEvent);
         break;
       case "mousemove":
-        this.openViews.forEach(panelView => panelView.clearNavigation());
+        this.openViews.forEach(panelView => {
+          if (!panelView.ignoreMouseMove) {
+            panelView.clearNavigation();
+          }
+        });
         break;
       case "popupshowing": {
         this._viewContainer.setAttribute("panelopen", "true");
@@ -1807,6 +1811,8 @@
       return popup && popup.state == "open";
     };
 
+    this.ignoreMouseMove = false;
+
     let keyCode = event.code;
     switch (keyCode) {
       case "ArrowDown":
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/downloads/content/downloadsContextMenu.inc.xhtml firefox-trunk-95.0~a1~hg20211020r596404/browser/components/downloads/content/downloadsContextMenu.inc.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/downloads/content/downloadsContextMenu.inc.xhtml	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/downloads/content/downloadsContextMenu.inc.xhtml	2021-10-20 19:28:14.000000000 +0000
@@ -22,12 +22,7 @@
             data-l10n-id="downloads-cmd-always-use-system-default"/>
   <menuitem command="downloadsCmd_show"
             class="downloadShowMenuItem"
-#ifdef XP_MACOSX
-            data-l10n-id="downloads-cmd-show-menuitem-mac"
-#else
-            data-l10n-id="downloads-cmd-show-menuitem"
-#endif
-            />
+            data-l10n-id="downloads-cmd-show-menuitem-2"/>
 
   <menuseparator class="downloadCommandsSeparator"/>
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/downloads/content/downloadsPanel.inc.xhtml firefox-trunk-95.0~a1~hg20211020r596404/browser/components/downloads/content/downloadsPanel.inc.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/downloads/content/downloadsPanel.inc.xhtml	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/downloads/content/downloadsPanel.inc.xhtml	2021-10-20 19:28:14.000000000 +0000
@@ -85,12 +85,7 @@
               data-l10n-id="downloads-cmd-always-use-system-default"/>
     <menuitem command="downloadsCmd_show"
               class="downloadShowMenuItem"
-  #ifdef XP_MACOSX
-              data-l10n-id="downloads-cmd-show-menuitem-mac"
-  #else
-              data-l10n-id="downloads-cmd-show-menuitem"
-  #endif
-              />
+              data-l10n-id="downloads-cmd-show-menuitem-2"/>
 
     <menuseparator class="downloadCommandsSeparator"/>
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/downloads/DownloadsViewUI.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/downloads/DownloadsViewUI.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/downloads/DownloadsViewUI.jsm	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/downloads/DownloadsViewUI.jsm	2021-10-20 19:28:14.000000000 +0000
@@ -63,9 +63,9 @@
   },
   show: {
     commandName: "downloadsCmd_show",
-    l10nId: "downloads-cmd-show-button",
-    descriptionL10nId: "downloads-cmd-show-description",
-    panelL10nId: "downloads-cmd-show-panel",
+    l10nId: "downloads-cmd-show-button-2",
+    descriptionL10nId: "downloads-cmd-show-description-2",
+    panelL10nId: "downloads-cmd-show-panel-2",
     iconClass: "downloadIconShow",
   },
   subviewOpenOrRemoveFile: {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/enterprisepolicies/tests/browser/404.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/enterprisepolicies/tests/browser/404.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/enterprisepolicies/tests/browser/404.sjs	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/enterprisepolicies/tests/browser/404.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -1,3 +1,3 @@
-function handleRequest(request, response) {
-  response.setStatusLine(request.httpVersion, 404, "Not Found");
-}
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 404, "Not Found");
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/authenticate.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/authenticate.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/authenticate.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/authenticate.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var match;
   var requestAuth = true;
 
@@ -9,23 +8,27 @@
   // at the beginning of the query string.
   var query = "?" + request.queryString;
 
-  var expected_user = "test", expected_pass = "testpass", realm = "mochitest";
+  var expected_user = "test",
+    expected_pass = "testpass",
+    realm = "mochitest";
 
   // user=xxx
   match = /[^_]user=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_user = match[1];
+  }
 
   // pass=xxx
   match = /[^_]pass=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_pass = match[1];
+  }
 
   // realm=xxx
   match = /[^_]realm=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     realm = match[1];
-
+  }
 
   // Look for an authentication header, if any, in the request.
   //
@@ -34,51 +37,59 @@
   // This test only supports Basic auth. The value sent by the client is
   // "username:password", obscured with base64 encoding.
 
-  var actual_user = "", actual_pass = "", authHeader, authPresent = false;
+  var actual_user = "",
+    actual_pass = "",
+    authHeader,
+    authPresent = false;
   if (request.hasHeader("Authorization")) {
     authPresent = true;
     authHeader = request.getHeader("Authorization");
     match = /Basic (.+)/.exec(authHeader);
-    if (match.length != 2)
-        throw new Error("Couldn't parse auth header: " + authHeader);
+    if (match.length != 2) {
+      throw new Error("Couldn't parse auth header: " + authHeader);
+    }
 
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
-    if (match.length != 3)
-        throw new Error("Couldn't decode auth header: " + userpass);
+    if (match.length != 3) {
+      throw new Error("Couldn't decode auth header: " + userpass);
+    }
     actual_user = match[1];
     actual_pass = match[2];
   }
 
   // Don't request authentication if the credentials we got were what we
   // expected.
-  if (expected_user == actual_user &&
-    expected_pass == actual_pass) {
+  if (expected_user == actual_user && expected_pass == actual_pass) {
     requestAuth = false;
   }
 
   if (requestAuth) {
     response.setStatusLine("1.0", 401, "Authentication required");
-    response.setHeader("WWW-Authenticate", "basic realm=\"" + realm + "\"", true);
+    response.setHeader("WWW-Authenticate", 'basic realm="' + realm + '"', true);
   } else {
     response.setStatusLine("1.0", 200, "OK");
   }
 
   response.setHeader("Content-Type", "application/xhtml+xml", false);
   response.write("<html xmlns='http://www.w3.org/1999/xhtml'>");
-  response.write("<p>Login: <span id='ok'>" + (requestAuth ? "FAIL" : "PASS") + "</span></p>\n");
+  response.write(
+    "<p>Login: <span id='ok'>" +
+      (requestAuth ? "FAIL" : "PASS") +
+      "</span></p>\n"
+  );
   response.write("<p>Auth: <span id='auth'>" + authHeader + "</span></p>\n");
   response.write("<p>User: <span id='user'>" + actual_user + "</span></p>\n");
   response.write("<p>Pass: <span id='pass'>" + actual_pass + "</span></p>\n");
   response.write("</html>");
 }
 
-
 // base64 decoder
 //
 // Yoinked from extensions/xml-rpc/src/nsXmlRpcClient.js because btoa()
 // doesn't seem to exist. :-(
 /* Convert Base64 data to a string */
+/* eslint-disable prettier/prettier */
 const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
@@ -89,38 +100,42 @@
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
-const base64Pad = '=';
+/* eslint-enable prettier/prettier */
+const base64Pad = "=";
 
 function base64ToString(data) {
+  var result = "";
+  var leftbits = 0; // number of bits decoded, but yet to be appended
+  var leftdata = 0; // bits decoded, but yet to be appended
+
+  // Convert one by one.
+  for (var i = 0; i < data.length; i++) {
+    var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
+    var padding = data[i] == base64Pad;
+    // Skip illegal characters and whitespace
+    if (c == -1) {
+      continue;
+    }
 
-    var result = '';
-    var leftbits = 0; // number of bits decoded, but yet to be appended
-    var leftdata = 0; // bits decoded, but yet to be appended
-
-    // Convert one by one.
-    for (var i = 0; i < data.length; i++) {
-        var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
-        var padding = (data[i] == base64Pad);
-        // Skip illegal characters and whitespace
-        if (c == -1) continue;
-
-        // Collect data into leftdata, update bitcount
-        leftdata = (leftdata << 6) | c;
-        leftbits += 6;
-
-        // If we have 8 or more bits, append 8 bits to the result
-        if (leftbits >= 8) {
-            leftbits -= 8;
-            // Append if not padding.
-            if (!padding)
-                result += String.fromCharCode((leftdata >> leftbits) & 0xff);
-            leftdata &= (1 << leftbits) - 1;
-        }
+    // Collect data into leftdata, update bitcount
+    leftdata = (leftdata << 6) | c;
+    leftbits += 6;
+
+    // If we have 8 or more bits, append 8 bits to the result
+    if (leftbits >= 8) {
+      leftbits -= 8;
+      // Append if not padding.
+      if (!padding) {
+        result += String.fromCharCode((leftdata >> leftbits) & 0xff);
+      }
+      leftdata &= (1 << leftbits) - 1;
     }
+  }
 
-    // If there are any bits left, the base64 string was corrupted
-    if (leftbits)
-        throw Components.Exception('Corrupted base64 string');
+  // If there are any bits left, the base64 string was corrupted
+  if (leftbits) {
+    throw Components.Exception("Corrupted base64 string");
+  }
 
-    return result;
+  return result;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/browser_ext_contentscript_sender_url.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/browser_ext_contentscript_sender_url.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/browser_ext_contentscript_sender_url.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/browser_ext_contentscript_sender_url.js	2021-10-20 19:28:14.000000000 +0000
@@ -0,0 +1,67 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+"use strict";
+
+add_task(async function test_sender_url() {
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      content_scripts: [
+        {
+          matches: ["http://mochi.test/*"],
+          run_at: "document_start",
+          js: ["script.js"],
+        },
+      ],
+    },
+
+    background() {
+      browser.runtime.onMessage.addListener((msg, sender) => {
+        browser.test.log("Message received.");
+        browser.test.sendMessage("sender.url", sender.url);
+      });
+    },
+
+    files: {
+      "script.js"() {
+        browser.test.log("Content script loaded.");
+        browser.runtime.sendMessage(0);
+      },
+    },
+  });
+
+  const image =
+    "http://mochi.test:8888/browser/browser/components/extensions/test/browser/ctxmenu-image.png";
+
+  // Bug is only visible and test only works without Fission,
+  // or with Fission but without BFcache in parent.
+  await SpecialPowers.pushPrefEnv({
+    set: [["fission.bfcacheInParent", false]],
+  });
+
+  function awaitNewTab() {
+    return BrowserTestUtils.waitForLocationChange(gBrowser, "about:newtab");
+  }
+
+  await extension.startup();
+
+  await BrowserTestUtils.withNewTab({ gBrowser }, async browser => {
+    let newTab = awaitNewTab();
+    BrowserTestUtils.loadURI(browser, "about:newtab");
+    await newTab;
+
+    BrowserTestUtils.loadURI(browser, image);
+    let url = await extension.awaitMessage("sender.url");
+    is(url, image, `Correct sender.url: ${url}`);
+
+    let wentBack = awaitNewTab();
+    await browser.goBack();
+    await wentBack;
+
+    await browser.goForward();
+    url = await extension.awaitMessage("sender.url");
+    is(url, image, `Correct sender.url: ${url}`);
+  });
+
+  await extension.unload();
+  await SpecialPowers.popPrefEnv();
+});
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/browser_ext_incognito_popup.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/browser_ext_incognito_popup.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/browser_ext_incognito_popup.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/browser_ext_incognito_popup.js	2021-10-20 19:28:14.000000000 +0000
@@ -23,7 +23,7 @@
         }
       });
 
-      let awaitPopup = windowId => {
+      const awaitPopup = windowId => {
         return new Promise(resolve => {
           resolveMessage = resolve;
         }).then(msg => {
@@ -36,8 +36,8 @@
         });
       };
 
-      let testWindow = async window => {
-        let [tab] = await browser.tabs.query({
+      const testWindow = async window => {
+        const [tab] = await browser.tabs.query({
           active: true,
           windowId: window.id,
         });
@@ -62,44 +62,53 @@
         );
       };
 
-      const URL = "https://example.com/incognito";
-      let windowReady = new Promise(resolve => {
-        browser.tabs.onUpdated.addListener(function listener(
-          tabId,
-          changed,
-          tab
-        ) {
-          if (changed.status == "complete" && tab.url == URL) {
-            browser.tabs.onUpdated.removeListener(listener);
-            resolve();
-          }
-        });
-      });
-
-      try {
-        {
-          let window = await browser.windows.getCurrent();
-
-          await testWindow(window);
-        }
+      const testNonPrivateWindow = async () => {
+        const window = await browser.windows.getCurrent();
+        await testWindow(window);
+      };
 
-        {
-          let window = await browser.windows.create({
-            incognito: true,
-            url: URL,
+      const testPrivateWindow = async () => {
+        const URL = "https://example.com/incognito";
+        const windowReady = new Promise(resolve => {
+          browser.tabs.onUpdated.addListener(function listener(
+            tabId,
+            changed,
+            tab
+          ) {
+            if (changed.status == "complete" && tab.url == URL) {
+              browser.tabs.onUpdated.removeListener(listener);
+              resolve();
+            }
           });
-          await windowReady;
+        });
+
+        const window = await browser.windows.create({
+          incognito: true,
+          url: URL,
+        });
+        await windowReady;
 
-          await testWindow(window);
+        await testWindow(window);
+      };
 
-          await browser.windows.remove(window.id);
+      browser.test.onMessage.addListener(async msg => {
+        switch (msg) {
+          case "test-nonprivate-window":
+            await testNonPrivateWindow();
+            break;
+          case "test-private-window":
+            await testPrivateWindow();
+            break;
+          default:
+            browser.test.fail(
+              `Unexpected test message: ${JSON.stringify(msg)}`
+            );
         }
 
-        browser.test.notifyPass("incognito");
-      } catch (error) {
-        browser.test.fail(`Error: ${error} :: ${error.stack}`);
-        browser.test.notifyFail("incognito");
-      }
+        browser.test.sendMessage(`${msg}:done`);
+      });
+
+      browser.test.sendMessage("bgscript:ready");
     },
 
     files: {
@@ -118,22 +127,43 @@
     },
   });
 
-  extension.onMessage("click-browserAction", () => {
-    clickBrowserAction(
-      extension,
-      Services.wm.getMostRecentWindow("navigator:browser")
-    );
-  });
+  await extension.startup();
+  await extension.awaitMessage("bgscript:ready");
 
-  extension.onMessage("click-pageAction", () => {
-    clickPageAction(
-      extension,
-      Services.wm.getMostRecentWindow("navigator:browser")
-    );
-  });
+  info("Run test on non private window");
+  extension.sendMessage("test-nonprivate-window");
+  await extension.awaitMessage("click-pageAction");
+  const win = Services.wm.getMostRecentWindow("navigator:browser");
+  ok(!PrivateBrowsingUtils.isWindowPrivate(win), "Got a nonprivate window");
+  await clickPageAction(extension, win);
+
+  await extension.awaitMessage("click-browserAction");
+  await clickBrowserAction(extension, win);
+
+  await extension.awaitMessage("test-nonprivate-window:done");
+  await closeBrowserAction(extension, win);
+  await closePageAction(extension, win);
+
+  info("Run test on private window");
+  extension.sendMessage("test-private-window");
+  await extension.awaitMessage("click-pageAction");
+  const privateWin = Services.wm.getMostRecentWindow("navigator:browser");
+  ok(PrivateBrowsingUtils.isWindowPrivate(privateWin), "Got a private window");
+  await clickPageAction(extension, privateWin);
+
+  await extension.awaitMessage("click-browserAction");
+  await clickBrowserAction(extension, privateWin);
+
+  await extension.awaitMessage("test-private-window:done");
+  // Wait for the private window chrome document to be flushed before
+  // closing the browserACtion, pageAction and the entire private window,
+  // to prevent intermittent failures.
+  await privateWin.promiseDocumentFlushed(() => {});
+
+  await closeBrowserAction(extension, privateWin);
+  await closePageAction(extension, privateWin);
+  await BrowserTestUtils.closeWindow(privateWin);
 
-  await extension.startup();
-  await extension.awaitFinish("incognito");
   await extension.unload();
 });
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/browser_ext_persistent_storage_permission_indication.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/browser_ext_persistent_storage_permission_indication.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/browser_ext_persistent_storage_permission_indication.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/browser_ext_persistent_storage_permission_indication.js	2021-10-20 19:28:14.000000000 +0000
@@ -14,6 +14,7 @@
     event => event.target == gPermissionPanel._permissionPopup
   );
   gPermissionPanel._identityPermissionBox.click();
+  info("Wait permission popup to be shown");
   return promise;
 }
 
@@ -23,6 +24,7 @@
     "popuphidden"
   );
   gPermissionPanel._permissionPopup.hidePopup();
+  info("Wait permission popup to be hidden");
   return promise;
 }
 
@@ -67,21 +69,25 @@
 add_task(async function testPersistentStoragePermissionHidden() {
   let extension = ExtensionTestUtils.loadExtension({
     background() {
-      browser.test.sendMessage("url", browser.runtime.getURL("icon.png"));
+      browser.test.sendMessage("url", browser.runtime.getURL("testpage.html"));
     },
     manifest: {
       name: "Test Extension",
       permissions: ["unlimitedStorage"],
     },
     files: {
-      "icon.png": "",
+      "testpage.html": "<h1>Extension Test Page</h1>",
     },
   });
 
   await extension.startup();
 
   let url = await extension.awaitMessage("url");
-  await BrowserTestUtils.withNewTab({ gBrowser, url }, async function() {
+  await BrowserTestUtils.withNewTab("about:blank", async browser => {
+    // Wait the tab to be fully loade, then run the test on the permission prompt.
+    let loaded = BrowserTestUtils.browserLoaded(browser, false, url);
+    BrowserTestUtils.loadURI(browser, url);
+    await loaded;
     await testPermissionPopup({ expectPermissionHidden: true });
   });
 
@@ -91,13 +97,13 @@
 add_task(async function testPersistentStoragePermissionVisible() {
   let extension = ExtensionTestUtils.loadExtension({
     background() {
-      browser.test.sendMessage("url", browser.runtime.getURL("icon.png"));
+      browser.test.sendMessage("url", browser.runtime.getURL("testpage.html"));
     },
     manifest: {
       name: "Test Extension",
     },
     files: {
-      "icon.png": "",
+      "testpage.html": "<h1>Extension Test Page</h1>",
     },
   });
 
@@ -113,7 +119,11 @@
     Services.perms.ALLOW_ACTION
   );
 
-  await BrowserTestUtils.withNewTab({ gBrowser, url }, async function() {
+  await BrowserTestUtils.withNewTab("about:blank", async browser => {
+    // Wait the tab to be fully loade, then run the test on the permission prompt.
+    let loaded = BrowserTestUtils.browserLoaded(browser, false, url);
+    BrowserTestUtils.loadURI(browser, url);
+    await loaded;
     await testPermissionPopup({ expectPermissionHidden: false });
   });
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/browser_ext_sidebarAction_click.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/browser_ext_sidebarAction_click.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/browser_ext_sidebarAction_click.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/browser_ext_sidebarAction_click.js	2021-10-20 19:28:14.000000000 +0000
@@ -55,6 +55,14 @@
 
   // This test fails if docShell.isAppTab has not been set to true.
   let content = SidebarUI.browser.contentWindow;
+
+  // Wait for the layout to be flushed, otherwise this test may
+  // fail intermittently if synthesizeMouseAtCenter is being called
+  // while the sidebar is still opening and the browser window layout
+  // being recomputed.
+  await content.promiseDocumentFlushed(() => {});
+
+  info("Clicking link in extension sidebar");
   await BrowserTestUtils.synthesizeMouseAtCenter(
     "#testlink",
     {},
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/browser.ini firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/browser.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/browser.ini	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/browser.ini	2021-10-20 19:28:14.000000000 +0000
@@ -98,6 +98,8 @@
 [browser_ext_contentscript_in_parent.js]
 [browser_ext_contentscript_incognito.js]
 [browser_ext_contentscript_nontab_connect.js]
+[browser_ext_contentscript_sender_url.js]
+skip-if = debug # The nature of the reduced STR test triggers an unrelated debug assertion in DOM IPC code, see bug 1736590.
 [browser_ext_contextMenus.js]
 support-files = !/browser/components/places/tests/browser/head.js
 [browser_ext_contextMenus_checkboxes.js]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/file_bypass_cache.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/file_bypass_cache.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/file_bypass_cache.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/file_bypass_cache.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -6,6 +6,8 @@
   response.setHeader("Content-Type", "text/plain; charset=UTF-8", false);
 
   if (request.hasHeader("pragma") && request.hasHeader("cache-control")) {
-    response.write(`${request.getHeader("pragma")}:${request.getHeader("cache-control")}`);
+    response.write(
+      `${request.getHeader("pragma")}:${request.getHeader("cache-control")}`
+    );
   }
-}
\ No newline at end of file
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/file_slowed_document.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/file_slowed_document.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/file_slowed_document.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/file_slowed_document.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -11,7 +11,11 @@
 
 const DELAY = 2 * 1000; // Delay two seconds before completing the request.
 
-let nsTimer = Components.Constructor("@mozilla.org/timer;1", "nsITimer", "initWithCallback");
+let nsTimer = Components.Constructor(
+  "@mozilla.org/timer;1",
+  "nsITimer",
+  "initWithCallback"
+);
 
 let timer;
 
@@ -31,11 +35,15 @@
 
   // Note: We need to store a reference to the timer to prevent it from being
   // canceled when it's GCed.
-  timer = new nsTimer(() => {
-    if (request.queryString.includes("with-iframe")) {
-      response.write(`<iframe src="${URL}?r=${Math.random()}"></iframe>`);
-    }
-    response.write(`</body></html>`);
-    response.finish();
-  }, DELAY, Ci.nsITimer.TYPE_ONE_SHOT);
+  timer = new nsTimer(
+    () => {
+      if (request.queryString.includes("with-iframe")) {
+        response.write(`<iframe src="${URL}?r=${Math.random()}"></iframe>`);
+      }
+      response.write(`</body></html>`);
+      response.finish();
+    },
+    DELAY,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/head.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/head.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/browser/head.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/browser/head.js	2021-10-20 19:28:14.000000000 +0000
@@ -419,6 +419,14 @@
     contentAreaContextMenu,
     "popupshown"
   );
+
+  // Wait for the layout to be flushed, otherwise this test may
+  // fail intermittently if synthesizeMouseAtCenter is being called
+  // while the sidebar is still opening and the browser window layout
+  // being recomputed.
+  await SidebarUI.browser.contentWindow.promiseDocumentFlushed(() => {});
+
+  info("Opening context menu in sidebarAction panel");
   await BrowserTestUtils.synthesizeMouseAtCenter(
     selector,
     { type: "mousedown", button: 2 },
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/xpcshell/data/test/manifest.json firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/xpcshell/data/test/manifest.json
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/xpcshell/data/test/manifest.json	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/xpcshell/data/test/manifest.json	2021-10-20 19:28:14.000000000 +0000
@@ -63,6 +63,16 @@
           "name": "prefval",
           "condition": "pref",
           "pref": "code"
+        },
+        {
+          "name": "experimenter-1",
+          "condition": "pref",
+          "pref": "nimbus-key-1"
+        },
+        {
+          "name": "experimenter-2",
+          "condition": "pref",
+          "pref": "nimbus-key-2"
         }
       ]
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/xpcshell/test_ext_settings_overrides_search_mozParam.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/xpcshell/test_ext_settings_overrides_search_mozParam.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/extensions/test/xpcshell/test_ext_settings_overrides_search_mozParam.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/extensions/test/xpcshell/test_ext_settings_overrides_search_mozParam.js	2021-10-20 19:28:14.000000000 +0000
@@ -6,10 +6,13 @@
 const { AddonTestUtils } = ChromeUtils.import(
   "resource://testing-common/AddonTestUtils.jsm"
 );
-
 const { SearchTestUtils } = ChromeUtils.import(
   "resource://testing-common/SearchTestUtils.jsm"
 );
+const { NimbusFeatures } = ChromeUtils.import(
+  "resource://nimbus/ExperimentAPI.jsm"
+);
+const { sinon } = ChromeUtils.import("resource://testing-common/Sinon.jsm");
 
 AddonTestUtils.init(this);
 AddonTestUtils.overrideCertDB();
@@ -50,6 +53,8 @@
 ];
 
 add_task(async function setup() {
+  let readyStub = sinon.stub(NimbusFeatures.search, "ready").resolves();
+  let updateStub = sinon.stub(NimbusFeatures.search, "onUpdate");
   await promiseStartupManager();
   await SearchTestUtils.useTestEngines("data", null, [
     {
@@ -67,6 +72,8 @@
   await Services.search.init();
   registerCleanupFunction(async () => {
     await promiseShutdownManager();
+    readyStub.restore();
+    updateStub.restore();
   });
 });
 
@@ -105,6 +112,81 @@
       "search url is expected"
     );
   }
+
+  defaultBranch.setCharPref("param.code", "");
+});
+
+add_task(async function test_nimbus_params() {
+  let sandbox = sinon.createSandbox();
+  let stub = sandbox.stub(NimbusFeatures.search, "getVariable");
+  // These values should match the nimbusParams below and the data/test/manifest.json
+  // search engine configuration
+  stub.withArgs("extraParams").returns([
+    {
+      key: "nimbus-key-1",
+      value: "nimbus-value-1",
+    },
+    {
+      key: "nimbus-key-2",
+      value: "nimbus-value-2",
+    },
+  ]);
+
+  Assert.ok(
+    NimbusFeatures.search.onUpdate.called,
+    "Called to initialize the cache"
+  );
+
+  // Populate the cache with the `getVariable` mock values
+  NimbusFeatures.search.onUpdate.firstCall.args[0]();
+
+  let engine = Services.search.getEngineByName("MozParamsTest");
+
+  // Note: these lists should be kept in sync with the lists in
+  // browser/components/extensions/test/xpcshell/data/test/manifest.json
+  // These params are conditional based on how search is initiated.
+  const nimbusParams = [
+    { name: "experimenter-1", condition: "pref", pref: "nimbus-key-1" },
+    { name: "experimenter-2", condition: "pref", pref: "nimbus-key-2" },
+  ];
+  const experimentCache = {
+    "nimbus-key-1": "nimbus-value-1",
+    "nimbus-key-2": "nimbus-value-2",
+  };
+
+  let extraParams = [];
+  for (let p of params) {
+    if (p.value == "{searchTerms}") {
+      extraParams.push(`${p.name}=test`);
+    } else if (p.value == "{language}") {
+      extraParams.push(`${p.name}=${Services.locale.requestedLocale || "*"}`);
+    } else if (p.value == "{moz:locale}") {
+      extraParams.push(`${p.name}=${Services.locale.requestedLocale}`);
+    } else if (p.condition !== "pref") {
+      // Ignoring pref parameters
+      extraParams.push(`${p.name}=${p.value}`);
+    }
+  }
+  for (let p of nimbusParams) {
+    if (p.condition == "pref") {
+      extraParams.push(`${p.name}=${experimentCache[p.pref]}`);
+    }
+  }
+  let paramStr = extraParams.join("&");
+  for (let p of mozParams) {
+    let expectedURL = engine.getSubmission(
+      "test",
+      null,
+      p.condition == "purpose" ? p.purpose : null
+    ).uri.spec;
+    equal(
+      expectedURL,
+      `https://example.com/?q=test&${p.name}=${p.value}&${paramStr}`,
+      "search url is expected"
+    );
+  }
+
+  sandbox.restore();
 });
 
 add_task(async function test_extension_setting_moz_params_fail() {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/originattributes/test/browser/file_saveAs.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/originattributes/test/browser/file_saveAs.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/originattributes/test/browser/file_saveAs.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/originattributes/test/browser/file_saveAs.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -6,7 +6,7 @@
 const VIDEO_PATH = `${URI_PATH}file_thirdPartyChild.video.ogv`;
 // Reusing existing png file for testing.
 const IMAGE_PATH = `${URI_PATH}file_favicon.png`;
-const FRAME_PATH = `${SECOND_ORIGIN}${URI_PATH}file_saveAs.sjs?image=1`
+const FRAME_PATH = `${SECOND_ORIGIN}${URI_PATH}file_saveAs.sjs?image=1`;
 
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/content/editBookmark.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/content/editBookmark.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/content/editBookmark.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/content/editBookmark.js	2021-10-20 19:28:14.000000000 +0000
@@ -343,7 +343,12 @@
       PlacesUtils.bookmarks.addObserver(this);
       this.handlePlacesEvents = this.handlePlacesEvents.bind(this);
       PlacesUtils.observers.addListener(
-        ["bookmark-moved", "bookmark-title-changed", "bookmark-url-changed"],
+        [
+          "bookmark-moved",
+          "bookmark-tags-changed",
+          "bookmark-title-changed",
+          "bookmark-url-changed",
+        ],
         this.handlePlacesEvents
       );
       window.addEventListener("unload", this);
@@ -561,7 +566,12 @@
     if (this._observersAdded) {
       PlacesUtils.bookmarks.removeObserver(this);
       PlacesUtils.observers.removeListener(
-        ["bookmark-moved", "bookmark-title-changed", "bookmark-url-changed"],
+        [
+          "bookmark-moved",
+          "bookmark-tags-changed",
+          "bookmark-title-changed",
+          "bookmark-url-changed",
+        ],
         this.handlePlacesEvents
       );
       window.removeEventListener("unload", this);
@@ -1154,6 +1164,11 @@
             bm.title
           );
           break;
+        case "bookmark-tags-changed":
+          if (this._paneInfo.visibleRows.has("tagsRow")) {
+            this._onTagsChange(event.guid).catch(Cu.reportError);
+          }
+          break;
         case "bookmark-title-changed":
           if (this._paneInfo.isItem || this._paneInfo.isTag) {
             // This also updates titles of folders in the folder menu list.
@@ -1291,11 +1306,6 @@
     aParentId,
     aGuid
   ) {
-    if (aProperty == "tags" && this._paneInfo.visibleRows.has("tagsRow")) {
-      this._onTagsChange(aGuid).catch(Cu.reportError);
-      return;
-    }
-
     if (!this._paneInfo.isItem || this._paneInfo.itemId != aItemId) {
       return;
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/tests/browser/browser_bookmark_add_tags.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/tests/browser/browser_bookmark_add_tags.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/tests/browser/browser_bookmark_add_tags.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/tests/browser/browser_bookmark_add_tags.js	2021-10-20 19:28:14.000000000 +0000
@@ -103,8 +103,9 @@
   // Click the bookmark star again, add more tags.
   await clickBookmarkStar();
   promiseNotification = PlacesTestUtils.waitForNotification(
-    "onItemChanged",
-    (id, property) => property == "tags"
+    "bookmark-tags-changed",
+    () => true,
+    "places"
   );
   await fillBookmarkTextField(
     "editBMPanel_tagsField",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/tests/browser/browser_bookmarkProperties_editTagContainer.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/tests/browser/browser_bookmarkProperties_editTagContainer.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/tests/browser/browser_bookmarkProperties_editTagContainer.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/tests/browser/browser_bookmarkProperties_editTagContainer.js	2021-10-20 19:28:14.000000000 +0000
@@ -34,11 +34,10 @@
   );
 
   let promiseTagResetNotification = PlacesTestUtils.waitForNotification(
-    "onItemChanged",
-    (itemId, prop) => {
-      let tags = PlacesUtils.tagging.getTagsForURI(uri);
-      return prop == "tags" && tags.length == 1 && tags[0] == "tag1";
-    }
+    "bookmark-tags-changed",
+    events =>
+      events.some(({ tags }) => tags.length === 1 && tags[0] === "tag1"),
+    "places"
   );
 
   await withBookmarksDialog(
@@ -60,11 +59,10 @@
       Assert.ok(!namepicker.readOnly, "Name field should not be read-only");
       Assert.equal(namepicker.value, "tag1", "Node title is correct");
       let promiseTagChangeNotification = PlacesTestUtils.waitForNotification(
-        "onItemChanged",
-        (itemId, prop) => {
-          let tags = PlacesUtils.tagging.getTagsForURI(uri);
-          return prop == "tags" && tags.length == 1 && tags[0] == "tag2";
-        }
+        "bookmark-tags-changed",
+        events =>
+          events.some(({ tags }) => tags.length === 1 && tags[0] === "tag2"),
+        "places"
       );
 
       let promiseTagRemoveNotification = PlacesTestUtils.waitForNotification(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/tests/browser/browser_bookmark_remove_tags.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/tests/browser/browser_bookmark_remove_tags.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/tests/browser/browser_bookmark_remove_tags.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/tests/browser/browser_bookmark_remove_tags.js	2021-10-20 19:28:14.000000000 +0000
@@ -56,8 +56,9 @@
   );
 
   let promiseTagsChange = PlacesTestUtils.waitForNotification(
-    "onItemChanged",
-    (id, property) => property === "tags"
+    "bookmark-tags-changed",
+    () => true,
+    "places"
   );
 
   // Update the "tags" field.
@@ -119,8 +120,9 @@
       );
 
       let promiseTagsChange = PlacesTestUtils.waitForNotification(
-        "onItemChanged",
-        (id, property) => property === "tags"
+        "bookmark-tags-changed",
+        () => true,
+        "places"
       );
 
       // Update the "tags" field.
@@ -174,8 +176,9 @@
         );
 
         let promiseTagsChange = PlacesTestUtils.waitForNotification(
-          "onItemChanged",
-          (id, property) => property === "tags"
+          "bookmark-tags-changed",
+          () => true,
+          "places"
         );
 
         // Update the "tags" field.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/tests/browser/browser_bug485100-change-case-loses-tag.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/tests/browser/browser_bug485100-change-case-loses-tag.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/tests/browser/browser_bug485100-change-case-loses-tag.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/tests/browser/browser_bug485100-change-case-loses-tag.js	2021-10-20 19:28:14.000000000 +0000
@@ -23,8 +23,9 @@
   // add a tag
   document.getElementById("editBMPanel_tagsField").value = testTag;
   let promiseNotification = PlacesTestUtils.waitForNotification(
-    "onItemChanged",
-    (id, property) => property == "tags"
+    "bookmark-tags-changed",
+    () => true,
+    "places"
   );
   gEditItemOverlay.onTagsFieldChange();
   await promiseNotification;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/tests/browser/browser_library_delete_bookmarks_in_tags.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/tests/browser/browser_library_delete_bookmarks_in_tags.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/places/tests/browser/browser_library_delete_bookmarks_in_tags.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/places/tests/browser/browser_library_delete_bookmarks_in_tags.js	2021-10-20 19:28:14.000000000 +0000
@@ -73,8 +73,9 @@
     );
 
     let promiseNotification = PlacesTestUtils.waitForNotification(
-      "onItemChanged",
-      (id, property) => property == "tags"
+      "bookmark-tags-changed",
+      () => true,
+      "places"
     );
 
     ContentTree.view.controller.doCommand("cmd_delete");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/privatebrowsing/test/browser/title.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/privatebrowsing/test/browser/title.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/privatebrowsing/test/browser/title.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/privatebrowsing/test/browser/title.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -11,10 +11,11 @@
 
   var cookie = "name=value";
   var title = "No Cookie";
-  if (request.hasHeader("Cookie") && request.getHeader("Cookie") == cookie)
+  if (request.hasHeader("Cookie") && request.getHeader("Cookie") == cookie) {
     title = "Cookie";
-  else
+  } else {
     response.setHeader("Set-Cookie", cookie, false);
+  }
 
   response.write("<html><head><title>");
   response.write(title);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/resistfingerprinting/test/browser/browser_navigator_header.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/resistfingerprinting/test/browser/browser_navigator_header.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/resistfingerprinting/test/browser/browser_navigator_header.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/resistfingerprinting/test/browser/browser_navigator_header.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -8,4 +8,4 @@
   } else {
     response.write("no user agent header");
   }
-}
\ No newline at end of file
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/resistfingerprinting/test/browser/coop_header.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/resistfingerprinting/test/browser/coop_header.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/resistfingerprinting/test/browser/coop_header.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/resistfingerprinting/test/browser/coop_header.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -55,8 +55,7 @@
   };
   `;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   Components.utils.importGlobalProperties(["URLSearchParams"]);
   let query = new URLSearchParams(request.queryString);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/search/test/browser/browser_search_nimbus_reload.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/search/test/browser/browser_search_nimbus_reload.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/search/test/browser/browser_search_nimbus_reload.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/search/test/browser/browser_search_nimbus_reload.js	2021-10-20 19:28:15.000000000 +0000
@@ -16,7 +16,7 @@
 
 add_task(async function test_engines_reloaded_nimbus() {
   let reloadSpy = sinon.spy(SearchService.prototype, "_maybeReloadEngines");
-  let variableSpy = sinon.spy(NimbusFeatures.search, "getVariable");
+  let getVariableSpy = sinon.spy(NimbusFeatures.search, "getVariable");
 
   let doExperimentCleanup = await ExperimentFakes.enrollWithFeatureConfig({
     featureId: "search",
@@ -25,18 +25,21 @@
 
   Assert.equal(reloadSpy.callCount, 1, "Called by experiment enrollment");
   await BrowserTestUtils.waitForCondition(
-    () => variableSpy.called,
+    () => getVariableSpy.calledWith("experiment"),
     "Wait for SearchService update to run"
   );
   Assert.equal(
-    variableSpy.callCount,
-    1,
-    "Called by update function to fetch engines"
+    getVariableSpy.callCount,
+    2,
+    "Called by update function to fetch engines and by ParamPreferenceCache"
   );
-  Assert.equal(
-    variableSpy.firstCall.args[0],
-    "experiment",
-    "Got `experiment` variable value"
+  Assert.ok(
+    getVariableSpy.calledWith("extraParams"),
+    "Called by ParamPreferenceCache listener"
+  );
+  Assert.ok(
+    getVariableSpy.calledWith("experiment"),
+    "Called by search service observer"
   );
   Assert.equal(
     NimbusFeatures.search.getVariable("experiment"),
@@ -49,5 +52,5 @@
   Assert.equal(reloadSpy.callCount, 2, "Called by experiment unenrollment");
 
   reloadSpy.restore();
-  variableSpy.restore();
+  getVariableSpy.restore();
 });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/sessionstore/test/browser_637020_slow.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/sessionstore/test/browser_637020_slow.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/sessionstore/test/browser_637020_slow.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/sessionstore/test/browser_637020_slow.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -11,8 +11,12 @@
   resp.setHeader("Content-Type", "text/html;charset=utf-8", false);
 
   timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-  timer.init(() => {
-    resp.write("hi");
-    resp.finish();
-  }, DELAY_MS, Ci.nsITimer.TYPE_ONE_SHOT);
+  timer.init(
+    () => {
+      resp.write("hi");
+      resp.finish();
+    },
+    DELAY_MS,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/sessionstore/test/browser_sessionHistory_slow.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/sessionstore/test/browser_sessionHistory_slow.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/sessionstore/test/browser_sessionHistory_slow.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/sessionstore/test/browser_sessionHistory_slow.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -11,8 +11,12 @@
   resp.setHeader("Content-Type", "text/html;charset=utf-8", false);
 
   timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-  timer.init(() => {
-    resp.write("hi");
-    resp.finish();
-  }, DELAY_MS, Ci.nsITimer.TYPE_ONE_SHOT);
+  timer.init(
+    () => {
+      resp.write("hi");
+      resp.finish();
+    },
+    DELAY_MS,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/sessionstore/test/coopHeaderCommon.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/sessionstore/test/coopHeaderCommon.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/sessionstore/test/coopHeaderCommon.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/sessionstore/test/coopHeaderCommon.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -1,6 +1,6 @@
 function handleRequest(request, response) {
   Components.utils.importGlobalProperties(["URLSearchParams"]);
-  Components.utils.import("resource://gre/modules/NetUtil.jsm");
+  let { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
   let query = new URLSearchParams(request.queryString);
 
   response.setHeader("Cross-Origin-Opener-Policy", "same-origin", false);
@@ -15,8 +15,9 @@
   });
 
   // Set up the file streams to read in the file as UTF-8
-  let fstream = Components.classes["@mozilla.org/network/file-input-stream;1"].
-      createInstance(Components.interfaces.nsIFileInputStream);
+  let fstream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
 
   fstream.init(file, -1, 0, 0);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/translation/test/bing.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/translation/test/bing.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/translation/test/bing.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/translation/test/bing.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -5,9 +5,11 @@
 "use strict";
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 Cu.importGlobalProperties(["DOMParser"]);
 
 function handleRequest(req, res) {
@@ -33,7 +35,7 @@
   405: "Method Not Allowed",
   500: "Internal Server Error",
   501: "Not Implemented",
-  503: "Service Unavailable"
+  503: "Service Unavailable",
 };
 
 function HTTPError(code = 500, message) {
@@ -46,8 +48,10 @@
 
 function sendError(res, err) {
   if (!(err instanceof HTTPError)) {
-    err = new HTTPError(typeof err == "number" ? err : 500,
-                        err.message || typeof err == "string" ? err : "");
+    err = new HTTPError(
+      typeof err == "number" ? err : 500,
+      err.message || typeof err == "string" ? err : ""
+    );
   }
   res.setStatusLine("1.1", err.code, err.name);
   res.write(err.message);
@@ -57,8 +61,9 @@
   let ret = {};
   for (let param of query.replace(/^[?&]/, "").split("&")) {
     param = param.split("=");
-    if (!param[0])
+    if (!param[0]) {
       continue;
+    }
     ret[unescape(param[0])] = unescape(param[1]);
   }
   return ret;
@@ -69,22 +74,23 @@
   let bytes = [];
   let body = new BinaryInputStream(req.bodyInputStream);
 
-  while ((avail = body.available()) > 0)
+  while ((avail = body.available()) > 0) {
     Array.prototype.push.apply(bytes, body.readByteArray(avail));
+  }
 
   return String.fromCharCode.apply(null, bytes);
 }
 
 function sha1(str) {
-  let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"]
-                    .createInstance(Ci.nsIScriptableUnicodeConverter);
+  let converter = Cc[
+    "@mozilla.org/intl/scriptableunicodeconverter"
+  ].createInstance(Ci.nsIScriptableUnicodeConverter);
   converter.charset = "UTF-8";
   // `result` is an out parameter, `result.value` will contain the array length.
   let result = {};
   // `data` is an array of bytes.
   let data = converter.convertToByteArray(str, result);
-  let ch = Cc["@mozilla.org/security/hash;1"]
-             .createInstance(Ci.nsICryptoHash);
+  let ch = Cc["@mozilla.org/security/hash;1"].createInstance(Ci.nsICryptoHash);
   ch.init(ch.SHA1);
   ch.update(data, data.length);
   let hash = ch.finish(false);
@@ -101,19 +107,22 @@
 function parseXml(body) {
   let parser = new DOMParser();
   let xml = parser.parseFromString(body, "text/xml");
-  if (xml.documentElement.localName == "parsererror")
+  if (xml.documentElement.localName == "parsererror") {
     throw new Error("Invalid XML");
+  }
   return xml;
 }
 
 function getInputStream(path) {
   let file = Cc["@mozilla.org/file/directory_service;1"]
-               .getService(Ci.nsIProperties)
-               .get("CurWorkD", Ci.nsIFile);
-  for (let part of path.split("/"))
+    .getService(Ci.nsIProperties)
+    .get("CurWorkD", Ci.nsIFile);
+  for (let part of path.split("/")) {
     file.append(part);
-  let fileStream  = Cc["@mozilla.org/network/file-input-stream;1"]
-                      .createInstance(Ci.nsIFileInputStream);
+  }
+  let fileStream = Cc[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Ci.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
   return fileStream;
 }
@@ -122,25 +131,33 @@
   let err = new Error("Authorization failed");
   err.code = 401;
 
-  if (!req.hasHeader("Authorization"))
+  if (!req.hasHeader("Authorization")) {
     throw new HTTPError(401, "No Authorization header provided.");
+  }
 
   let auth = req.getHeader("Authorization");
-  if (!auth.startsWith("Bearer "))
-    throw new HTTPError(401, "Invalid Authorization header content: '" + auth + "'");
+  if (!auth.startsWith("Bearer ")) {
+    throw new HTTPError(
+      401,
+      "Invalid Authorization header content: '" + auth + "'"
+    );
+  }
 
   // Rejecting inactive subscriptions.
   if (auth.includes("inactive")) {
-    const INACTIVE_STATE_RESPONSE = "<html><body><h1>TranslateApiException</h1><p>Method: TranslateArray()</p><p>Message: The Azure Market Place Translator Subscription associated with the request credentials is not in an active state.</p><code></code><p>message id=5641.V2_Rest.TranslateArray.48CC6470</p></body></html>";
+    const INACTIVE_STATE_RESPONSE =
+      "<html><body><h1>TranslateApiException</h1><p>Method: TranslateArray()</p><p>Message: The Azure Market Place Translator Subscription associated with the request credentials is not in an active state.</p><code></code><p>message id=5641.V2_Rest.TranslateArray.48CC6470</p></body></html>";
     throw new HTTPError(401, INACTIVE_STATE_RESPONSE);
   }
-
 }
 
 function reallyHandleRequest(req, res) {
   log("method: " + req.method);
   if (req.method != "POST") {
-    sendError(res, "Bing only deals with POST requests, not '" + req.method + "'.");
+    sendError(
+      res,
+      "Bing only deals with POST requests, not '" + req.method + "'."
+    );
     return;
   }
 
@@ -148,7 +165,9 @@
   log("body: " + body);
 
   // First, we'll see if we're dealing with an XML body:
-  let contentType = req.hasHeader("Content-Type") ? req.getHeader("Content-Type") : null;
+  let contentType = req.hasHeader("Content-Type")
+    ? req.getHeader("Content-Type")
+    : null;
   log("contentType: " + contentType);
 
   if (contentType.startsWith("text/xml")) {
@@ -161,10 +180,11 @@
       let method = xml.documentElement.localName;
       log("invoking method: " + method);
       // If the requested method is supported, delegate it to its handler.
-      if (methodHandlers[method])
+      if (methodHandlers[method]) {
         methodHandlers[method](res, xml);
-      else
+      } else {
         throw new HTTPError(501);
+      }
     } catch (ex) {
       sendError(res, ex, ex.code);
     }
@@ -173,15 +193,16 @@
     let params = parseQuery(body);
 
     // Delegate an authentication request to the correct handler.
-    if ("grant_type" in params && params.grant_type == "client_credentials")
+    if ("grant_type" in params && params.grant_type == "client_credentials") {
       methodHandlers.authenticate(res, params);
-    else
+    } else {
       sendError(res, 501);
+    }
   }
 }
 
 const methodHandlers = {
-  authenticate: function(res, params) {
+  authenticate(res, params) {
     // Validate a few required parameters.
     if (params.scope != "http://api.microsofttranslator.com") {
       sendError(res, "Invalid scope.");
@@ -198,16 +219,16 @@
 
     // Defines the tokens for certain client ids.
     const TOKEN_MAP = {
-      'testInactive'  : 'inactive',
-      'testClient'    : 'test'
+      testInactive: "inactive",
+      testClient: "test",
     };
-    let token = 'test'; // Default token.
-    if((params.client_id in TOKEN_MAP)){
+    let token = "test"; // Default token.
+    if (params.client_id in TOKEN_MAP) {
       token = TOKEN_MAP[params.client_id];
     }
     let content = JSON.stringify({
       access_token: token,
-      expires_in: 600
+      expires_in: 600,
     });
 
     res.setStatusLine("1.1", 200, "OK");
@@ -216,9 +237,9 @@
     res.write(content);
   },
 
-  TranslateArrayRequest: function(res, xml, body) {
+  TranslateArrayRequest(res, xml, body) {
     let from = xml.querySelector("From").firstChild.nodeValue;
-    let to = xml.querySelector("To").firstChild.nodeValue
+    let to = xml.querySelector("To").firstChild.nodeValue;
     log("translating from '" + from + "' to '" + to + "'");
 
     res.setStatusLine("1.1", 200, "OK");
@@ -227,8 +248,11 @@
     let hash = sha1(body).substr(0, 10);
     log("SHA1 hash of content: " + hash);
     let inputStream = getInputStream(
-      "browser/browser/components/translation/test/fixtures/result-" + hash + ".txt");
+      "browser/browser/components/translation/test/fixtures/result-" +
+        hash +
+        ".txt"
+    );
     res.bodyOutputStream.writeFrom(inputStream, inputStream.available());
     inputStream.close();
-  }
+  },
 };
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/translation/test/yandex.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/translation/test/yandex.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/translation/test/yandex.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/translation/test/yandex.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -5,9 +5,11 @@
 "use strict";
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function handleRequest(req, res) {
   try {
@@ -34,7 +36,7 @@
   422: "The text could not be translated",
   500: "Internal Server Error",
   501: "The specified translation direction is not supported",
-  503: "Service Unavailable"
+  503: "Service Unavailable",
 };
 
 function HTTPError(code = 500, message) {
@@ -47,8 +49,10 @@
 
 function sendError(res, err) {
   if (!(err instanceof HTTPError)) {
-    err = new HTTPError(typeof err == "number" ? err : 500,
-                        err.message || typeof err == "string" ? err : "");
+    err = new HTTPError(
+      typeof err == "number" ? err : 500,
+      err.message || typeof err == "string" ? err : ""
+    );
   }
   res.setStatusLine("1.1", err.code, err.name);
   res.write(err.message);
@@ -58,19 +62,22 @@
 // http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript
 function parseQuery(query) {
   let match,
-      params = {},
-      pl     = /\+/g,
-      search = /([^&=]+)=?([^&]*)/g,
-      decode = function (s) { return decodeURIComponent(s.replace(pl, " ")); };
+    params = {},
+    pl = /\+/g,
+    search = /([^&=]+)=?([^&]*)/g,
+    decode = function(s) {
+      return decodeURIComponent(s.replace(pl, " "));
+    };
 
-  while (match = search.exec(query)) {
+  while ((match = search.exec(query))) {
     let k = decode(match[1]),
-        v = decode(match[2]);
+      v = decode(match[2]);
     if (k in params) {
-      if(params[k] instanceof Array)
+      if (params[k] instanceof Array) {
         params[k].push(v);
-      else
+      } else {
         params[k] = [params[k], v];
+      }
     } else {
       params[k] = v;
     }
@@ -80,15 +87,15 @@
 }
 
 function sha1(str) {
-  let converter = Cc["@mozilla.org/intl/scriptableunicodeconverter"]
-                    .createInstance(Ci.nsIScriptableUnicodeConverter);
+  let converter = Cc[
+    "@mozilla.org/intl/scriptableunicodeconverter"
+  ].createInstance(Ci.nsIScriptableUnicodeConverter);
   converter.charset = "UTF-8";
   // `result` is an out parameter, `result.value` will contain the array length.
   let result = {};
   // `data` is an array of bytes.
   let data = converter.convertToByteArray(str, result);
-  let ch = Cc["@mozilla.org/security/hash;1"]
-             .createInstance(Ci.nsICryptoHash);
+  let ch = Cc["@mozilla.org/security/hash;1"].createInstance(Ci.nsICryptoHash);
   ch.init(ch.SHA1);
   ch.update(data, data.length);
   let hash = ch.finish(false);
@@ -107,20 +114,23 @@
   let bytes = [];
   let body = new BinaryInputStream(req.bodyInputStream);
 
-  while ((avail = body.available()) > 0)
+  while ((avail = body.available()) > 0) {
     Array.prototype.push.apply(bytes, body.readByteArray(avail));
+  }
 
   return String.fromCharCode.apply(null, bytes);
 }
 
 function getInputStream(path) {
   let file = Cc["@mozilla.org/file/directory_service;1"]
-               .getService(Ci.nsIProperties)
-               .get("CurWorkD", Ci.nsIFile);
-  for (let part of path.split("/"))
+    .getService(Ci.nsIProperties)
+    .get("CurWorkD", Ci.nsIFile);
+  for (let part of path.split("/")) {
     file.append(part);
-  let fileStream  = Cc["@mozilla.org/network/file-input-stream;1"]
-                      .createInstance(Ci.nsIFileInputStream);
+  }
+  let fileStream = Cc[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Ci.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
   return fileStream;
 }
@@ -138,33 +148,34 @@
  * If any other key is used the server reponds with 401 error code.
  */
 function checkAuth(params) {
-  if(!("key" in params))
+  if (!("key" in params)) {
     throw new HTTPError(400);
+  }
 
   let key = params.key;
-  if(key === "yandexValidKey")
+  if (key === "yandexValidKey") {
     return true;
+  }
 
   let invalidKeys = {
-    "yandexInvalidKey"        : 401,
-    "yandexBlockedKey"        : 402,
-    "yandexOutOfRequestsKey"  : 403,
-    "yandexOutOfCharsKey"     : 404,
+    yandexInvalidKey: 401,
+    yandexBlockedKey: 402,
+    yandexOutOfRequestsKey: 403,
+    yandexOutOfCharsKey: 404,
   };
 
-  if(key in invalidKeys)
+  if (key in invalidKeys) {
     throw new HTTPError(invalidKeys[key]);
+  }
 
   throw new HTTPError(401);
 }
 
 function reallyHandleRequest(req, res) {
-
   try {
-
     // Preparing the query parameters.
     let params = {};
-    if(req.method == 'POST') {
+    if (req.method == "POST") {
       params = parseQuery(getRequestBody(req));
     }
 
@@ -172,28 +183,28 @@
     log(JSON.stringify(params));
 
     checkAuth(params);
-    methodHandlers['translate'](res, params);
-
+    methodHandlers.translate(res, params);
   } catch (ex) {
     sendError(res, ex, ex.code);
   }
-
 }
 
 const methodHandlers = {
-  translate: function(res, params) {
+  translate(res, params) {
     res.setStatusLine("1.1", 200, "OK");
     res.setHeader("Content-Type", "application/json");
 
     let hash = sha1(JSON.stringify(params)).substr(0, 10);
     log("SHA1 hash of content: " + hash);
 
-    let fixture = "browser/browser/components/translation/test/fixtures/result-yandex-" + hash + ".json";
+    let fixture =
+      "browser/browser/components/translation/test/fixtures/result-yandex-" +
+      hash +
+      ".json";
     log("PATH: " + fixture);
 
     let inputStream = getInputStream(fixture);
     res.bodyOutputStream.writeFrom(inputStream, inputStream.available());
     inputStream.close();
-  }
-
+  },
 };
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/uitour/test/browser_UITour_availableTargets.js firefox-trunk-95.0~a1~hg20211020r596404/browser/components/uitour/test/browser_UITour_availableTargets.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/uitour/test/browser_UITour_availableTargets.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/uitour/test/browser_UITour_availableTargets.js	2021-10-20 19:28:14.000000000 +0000
@@ -15,14 +15,12 @@
     "appMenu",
     "backForward",
     "help",
-    "history",
     "logins",
     "pageAction-bookmark",
     ...(hasPocket ? ["pocket"] : []),
     "privateWindow",
     ...(hasQuit ? ["quit"] : []),
     "readerMode-urlBar",
-    "restorePreviousSession",
     "urlbar",
   ];
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/uitour/UITour.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/uitour/UITour.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/uitour/UITour.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/uitour/UITour.jsm	2021-10-20 19:28:15.000000000 +0000
@@ -151,14 +151,6 @@
       },
     ],
     ["help", { query: "#appMenu-help-button2" }],
-    [
-      "history",
-      {
-        query: "#appMenu-history-button",
-        subItem: "restorePreviousSession",
-        level: "top",
-      },
-    ],
     ["home", { query: "#home-button" }],
     [
       "logins",
@@ -186,7 +178,6 @@
       },
     ],
     ["readerMode-urlBar", { query: "#reader-mode-button" }],
-    ["restorePreviousSession", { query: "#appMenu-restoreSession" }],
     [
       "search",
       {
@@ -836,7 +827,7 @@
     this.hideHighlight(aWindow);
     this.hideInfo(aWindow);
 
-    await this.removePanelListeners(aWindow, true);
+    await this.removePanelListeners(aWindow);
 
     this.noautohideMenus.clear();
 
@@ -849,7 +840,7 @@
   /**
    * Remove the listeners to a panel when tearing the tour down.
    */
-  async removePanelListeners(aWindow, aHidePanels = false) {
+  async removePanelListeners(aWindow) {
     let panels = [
       {
         name: "appMenu",
@@ -858,14 +849,12 @@
           ["popuphidden", this.onPanelHidden],
           ["popuphiding", this.onAppMenuHiding],
           ["ViewShowing", this.onAppMenuSubviewShowing],
-          ["ViewShown", this.onAppMenuSubviewShown],
-          ["ViewHiding", this.onAppMenuSubviewHiding],
         ],
       },
     ];
     for (let panel of panels) {
       // Ensure the menu panel is hidden and clean up panel listeners after calling hideMenu.
-      if (aHidePanels && panel.node.state != "closed") {
+      if (panel.node.state != "closed") {
         await new Promise(resolve => {
           panel.node.addEventListener("popuphidden", resolve, { once: true });
           this.hideMenu(aWindow, panel.name);
@@ -978,8 +967,6 @@
             targetName: aTargetName,
             widgetName: targetObject.widgetName,
             allowAdd: targetObject.allowAdd,
-            level: targetObject.level,
-            subItem: targetObject.subItem,
           });
         })
         .catch(log.error);
@@ -1137,16 +1124,6 @@
       highlighter.parentElement.setAttribute("targetName", aTarget.targetName);
       highlighter.parentElement.hidden = false;
 
-      if (aTarget.subItem) {
-        // This is a subitem in the app menu, so mark it as one not to hide.
-        this.noautohideMenus.add("appMenu");
-        highlighter.parentElement.setAttribute("subitem", aTarget.subItem);
-      }
-
-      if (aTarget.level) {
-        highlighter.parentElement.setAttribute("level", aTarget.level);
-      }
-
       let highlightAnchor = aAnchorEl;
       let targetRect = highlightAnchor.getBoundingClientRect();
       let highlightHeight = targetRect.height;
@@ -1442,8 +1419,6 @@
       menu.node = aWindow.PanelUI.panel;
       menu.onPopupHiding = this.onAppMenuHiding;
       menu.onViewShowing = this.onAppMenuSubviewShowing;
-      menu.onViewShown = this.onAppMenuSubviewShown;
-      menu.onViewHiding = this.onAppMenuSubviewHiding;
       menu.show = () => aWindow.PanelUI.show();
 
       if (!aOptions.autohide) {
@@ -1459,8 +1434,6 @@
       menu.node.addEventListener("popuphidden", menu.onPanelHidden);
       menu.node.addEventListener("popuphiding", menu.onPopupHiding);
       menu.node.addEventListener("ViewShowing", menu.onViewShowing);
-      menu.node.addEventListener("ViewShown", menu.onViewShown);
-      menu.node.addEventListener("ViewHiding", menu.onViewHiding);
       menu.show();
     } else if (aMenuName == "bookmarks") {
       let menuBtn = aWindow.document.getElementById("bookmarks-menu-button");
@@ -1589,80 +1562,12 @@
     UITour._hideAnnotationsForPanel(aEvent, false, UITour.targetIsInAppMenu);
   },
 
-  onAppMenuSubviewShown(aEvent) {
-    let win = aEvent.target.ownerGlobal;
-    let subItemName = UITour.getSubItem(win);
-    if (
-      subItemName &&
-      UITour.isSubItemToHighlight(win, subItemName, aEvent.target.id)
-    ) {
-      let highlighter = UITour.getHighlightAndMaybeCreate(win.document);
-      UITour.recreatePopup(highlighter.parentElement);
-
-      UITour.getTarget(win, subItemName).then(subItem => {
-        if (!subItem.node.hidden) {
-          UITour.showHighlight(win, subItem, "focus-outline", {
-            autohide: true,
-          });
-        }
-      });
-    } else if (subItemName && aEvent.target.id != "appMenu-protonMainView") {
-      UITour.stopSubViewHandling(win);
-    }
-  },
-
-  onAppMenuSubviewHiding(aEvent) {
-    let win = aEvent.target.ownerGlobal;
-
-    let subItem = UITour.getSubItem(win);
-    if (subItem) {
-      if (UITour.isSubItemToHighlight(win, subItem, aEvent.target.id)) {
-        UITour.hideHighlight(win);
-        UITour.stopSubViewHandling(win);
-      }
-    }
-  },
-
   onPanelHidden(aEvent) {
-    if (UITour.getSubItem(aEvent.target.ownerGlobal)) {
-      UITour.stopSubViewHandling(aEvent.target.ownerGlobal);
-    }
-
     aEvent.target.removeAttribute("noautohide");
     UITour.recreatePopup(aEvent.target);
     UITour.clearAvailableTargetsCache();
   },
 
-  getSubItem(aWindow) {
-    // Get the subitem that should be highlighted in the app menu's subview.
-    let highlighter = UITour.getHighlightContainerAndMaybeCreate(
-      aWindow.document
-    );
-    return highlighter.getAttribute("subitem");
-  },
-
-  isSubItemToHighlight(aWindow, aSubItem, aExpectedId) {
-    let targetObject = UITour.targets.get(aSubItem);
-    if (targetObject) {
-      let node = UITour.getNodeFromDocument(
-        aWindow.document,
-        targetObject.query
-      );
-      return aExpectedId == node?.closest("panelview")?.id;
-    }
-
-    return false;
-  },
-
-  stopSubViewHandling(aWindow) {
-    UITour.removePanelListeners(aWindow);
-    UITour.noautohideMenus.delete("appMenu");
-
-    let highlighter = UITour.getHighlightAndMaybeCreate(aWindow.document);
-    highlighter.parentElement.removeAttribute("level");
-    highlighter.parentElement.removeAttribute("subitem");
-  },
-
   recreatePopup(aPanel) {
     // After changing popup attributes that relate to how the native widget is created
     // (e.g. @noautohide) we need to re-create the frame/widget for it to take effect.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/tests/browser/authenticate.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/tests/browser/authenticate.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/tests/browser/authenticate.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/tests/browser/authenticate.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   try {
     reallyHandleRequest(request, response);
   } catch (e) {
@@ -8,10 +7,10 @@
   }
 }
 
-
 function reallyHandleRequest(request, response) {
   var match;
-  var requestAuth = true, requestProxyAuth = true;
+  var requestAuth = true,
+    requestProxyAuth = true;
 
   // Allow the caller to drive how authentication is processed via the query.
   // Eg, http://localhost:8888/authenticate.sjs?user=foo&realm=bar
@@ -19,133 +18,178 @@
   // at the beginning of the query string.
   var query = "?" + request.queryString;
 
-  var expected_user = "", expected_pass = "", realm = "mochitest";
-  var proxy_expected_user = "", proxy_expected_pass = "", proxy_realm = "mochi-proxy";
-  var huge = false, plugin = false, anonymous = false;
+  var expected_user = "",
+    expected_pass = "",
+    realm = "mochitest";
+  var proxy_expected_user = "",
+    proxy_expected_pass = "",
+    proxy_realm = "mochi-proxy";
+  var huge = false,
+    plugin = false,
+    anonymous = false;
   var authHeaderCount = 1;
   // user=xxx
   match = /[^_]user=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_user = match[1];
+  }
 
   // pass=xxx
   match = /[^_]pass=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_pass = match[1];
+  }
 
   // realm=xxx
   match = /[^_]realm=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     realm = match[1];
+  }
 
   // proxy_user=xxx
   match = /proxy_user=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_expected_user = match[1];
+  }
 
   // proxy_pass=xxx
   match = /proxy_pass=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_expected_pass = match[1];
+  }
 
   // proxy_realm=xxx
   match = /proxy_realm=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_realm = match[1];
+  }
 
   // huge=1
   match = /huge=1/.exec(query);
-  if (match)
+  if (match) {
     huge = true;
+  }
 
   // plugin=1
   match = /plugin=1/.exec(query);
-  if (match)
+  if (match) {
     plugin = true;
+  }
 
   // multiple=1
   match = /multiple=([^&]*)/.exec(query);
-  if (match)
-    authHeaderCount = match[1]+0;
+  if (match) {
+    authHeaderCount = match[1] + 0;
+  }
 
   // anonymous=1
   match = /anonymous=1/.exec(query);
-  if (match)
+  if (match) {
     anonymous = true;
+  }
 
   // Look for an authentication header, if any, in the request.
   //
   // EG: Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
-  // 
+  //
   // This test only supports Basic auth. The value sent by the client is
   // "username:password", obscured with base64 encoding.
 
-  var actual_user = "", actual_pass = "", authHeader, authPresent = false;
+  var actual_user = "",
+    actual_pass = "",
+    authHeader,
+    authPresent = false;
   if (request.hasHeader("Authorization")) {
     authPresent = true;
     authHeader = request.getHeader("Authorization");
     match = /Basic (.+)/.exec(authHeader);
-    if (match.length != 2)
-        throw "Couldn't parse auth header: " + authHeader;
+    if (match.length != 2) {
+      throw "Couldn't parse auth header: " + authHeader;
+    }
 
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
-    if (match.length != 3)
-        throw "Couldn't decode auth header: " + userpass;
+    if (match.length != 3) {
+      throw "Couldn't decode auth header: " + userpass;
+    }
     actual_user = match[1];
     actual_pass = match[2];
-  } 
+  }
 
-  var proxy_actual_user = "", proxy_actual_pass = "";
+  var proxy_actual_user = "",
+    proxy_actual_pass = "";
   if (request.hasHeader("Proxy-Authorization")) {
     authHeader = request.getHeader("Proxy-Authorization");
     match = /Basic (.+)/.exec(authHeader);
-    if (match.length != 2)
-        throw "Couldn't parse auth header: " + authHeader;
+    if (match.length != 2) {
+      throw "Couldn't parse auth header: " + authHeader;
+    }
 
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
-    if (match.length != 3)
-        throw "Couldn't decode auth header: " + userpass;
+    if (match.length != 3) {
+      throw "Couldn't decode auth header: " + userpass;
+    }
     proxy_actual_user = match[1];
     proxy_actual_pass = match[2];
   }
 
   // Don't request authentication if the credentials we got were what we
   // expected.
-  if (expected_user == actual_user &&
-    expected_pass == actual_pass) {
+  if (expected_user == actual_user && expected_pass == actual_pass) {
     requestAuth = false;
   }
-  if (proxy_expected_user == proxy_actual_user &&
-    proxy_expected_pass == proxy_actual_pass) {
+  if (
+    proxy_expected_user == proxy_actual_user &&
+    proxy_expected_pass == proxy_actual_pass
+  ) {
     requestProxyAuth = false;
   }
 
   if (anonymous) {
     if (authPresent) {
-      response.setStatusLine("1.0", 400, "Unexpected authorization header found");
+      response.setStatusLine(
+        "1.0",
+        400,
+        "Unexpected authorization header found"
+      );
     } else {
       response.setStatusLine("1.0", 200, "Authorization header not found");
     }
-  } else {
-    if (requestProxyAuth) {
-      response.setStatusLine("1.0", 407, "Proxy authentication required");
-      for (i = 0; i < authHeaderCount; ++i)
-        response.setHeader("Proxy-Authenticate", "basic realm=\"" + proxy_realm + "\"", true);
-    } else if (requestAuth) {
-      response.setStatusLine("1.0", 401, "Authentication required");
-      for (i = 0; i < authHeaderCount; ++i)
-        response.setHeader("WWW-Authenticate", "basic realm=\"" + realm + "\"", true);
-    } else {
-      response.setStatusLine("1.0", 200, "OK");
+  } else if (requestProxyAuth) {
+    response.setStatusLine("1.0", 407, "Proxy authentication required");
+    for (i = 0; i < authHeaderCount; ++i) {
+      response.setHeader(
+        "Proxy-Authenticate",
+        'basic realm="' + proxy_realm + '"',
+        true
+      );
+    }
+  } else if (requestAuth) {
+    response.setStatusLine("1.0", 401, "Authentication required");
+    for (i = 0; i < authHeaderCount; ++i) {
+      response.setHeader(
+        "WWW-Authenticate",
+        'basic realm="' + realm + '"',
+        true
+      );
     }
+  } else {
+    response.setStatusLine("1.0", 200, "OK");
   }
 
   response.setHeader("Content-Type", "application/xhtml+xml", false);
   response.write("<html xmlns='http://www.w3.org/1999/xhtml'>");
-  response.write("<p>Login: <span id='ok'>" + (requestAuth ? "FAIL" : "PASS") + "</span></p>\n");
-  response.write("<p>Proxy: <span id='proxy'>" + (requestProxyAuth ? "FAIL" : "PASS") + "</span></p>\n");
+  response.write(
+    "<p>Login: <span id='ok'>" +
+      (requestAuth ? "FAIL" : "PASS") +
+      "</span></p>\n"
+  );
+  response.write(
+    "<p>Proxy: <span id='proxy'>" +
+      (requestProxyAuth ? "FAIL" : "PASS") +
+      "</span></p>\n"
+  );
   response.write("<p>Auth: <span id='auth'>" + authHeader + "</span></p>\n");
   response.write("<p>User: <span id='user'>" + actual_user + "</span></p>\n");
   response.write("<p>Pass: <span id='pass'>" + actual_pass + "</span></p>\n");
@@ -156,23 +200,27 @@
       response.write("123456789\n");
     }
     response.write("</div>");
-    response.write("<span id='footnote'>This is a footnote after the huge content fill</span>");
+    response.write(
+      "<span id='footnote'>This is a footnote after the huge content fill</span>"
+    );
   }
 
   if (plugin) {
-    response.write("<embed id='embedtest' style='width: 400px; height: 100px;' " + 
-           "type='application/x-test'></embed>\n");
+    response.write(
+      "<embed id='embedtest' style='width: 400px; height: 100px;' " +
+        "type='application/x-test'></embed>\n"
+    );
   }
 
   response.write("</html>");
 }
 
-
 // base64 decoder
 //
 // Yoinked from extensions/xml-rpc/src/nsXmlRpcClient.js because btoa()
 // doesn't seem to exist. :-(
 /* Convert Base64 data to a string */
+/* eslint-disable prettier/prettier */
 const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
@@ -183,38 +231,42 @@
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
-const base64Pad = '=';
+/* eslint-enable prettier/prettier */
+const base64Pad = "=";
 
 function base64ToString(data) {
+  var result = "";
+  var leftbits = 0; // number of bits decoded, but yet to be appended
+  var leftdata = 0; // bits decoded, but yet to be appended
+
+  // Convert one by one.
+  for (var i = 0; i < data.length; i++) {
+    var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
+    var padding = data[i] == base64Pad;
+    // Skip illegal characters and whitespace
+    if (c == -1) {
+      continue;
+    }
+
+    // Collect data into leftdata, update bitcount
+    leftdata = (leftdata << 6) | c;
+    leftbits += 6;
+
+    // If we have 8 or more bits, append 8 bits to the result
+    if (leftbits >= 8) {
+      leftbits -= 8;
+      // Append if not padding.
+      if (!padding) {
+        result += String.fromCharCode((leftdata >> leftbits) & 0xff);
+      }
+      leftdata &= (1 << leftbits) - 1;
+    }
+  }
 
-    var result = '';
-    var leftbits = 0; // number of bits decoded, but yet to be appended
-    var leftdata = 0; // bits decoded, but yet to be appended
-
-    // Convert one by one.
-    for (var i = 0; i < data.length; i++) {
-        var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
-        var padding = (data[i] == base64Pad);
-        // Skip illegal characters and whitespace
-        if (c == -1) continue;
-        
-        // Collect data into leftdata, update bitcount
-        leftdata = (leftdata << 6) | c;
-        leftbits += 6;
-
-        // If we have 8 or more bits, append 8 bits to the result
-        if (leftbits >= 8) {
-            leftbits -= 8;
-            // Append if not padding.
-            if (!padding)
-                result += String.fromCharCode((leftdata >> leftbits) & 0xff);
-            leftdata &= (1 << leftbits) - 1;
-        }
-    }
-
-    // If there are any bits left, the base64 string was corrupted
-    if (leftbits)
-        throw Components.Exception('Corrupted base64 string');
+  // If there are any bits left, the base64 string was corrupted
+  if (leftbits) {
+    throw Components.Exception("Corrupted base64 string");
+  }
 
-    return result;
+  return result;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/tests/browser/print_postdata.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/tests/browser/print_postdata.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/tests/browser/print_postdata.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/tests/browser/print_postdata.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -1,7 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
@@ -13,8 +15,9 @@
     var avail;
     var bytes = [];
 
-    while ((avail = body.available()) > 0)
+    while ((avail = body.available()) > 0) {
       Array.prototype.push.apply(bytes, body.readByteArray(avail));
+    }
 
     var data = String.fromCharCode.apply(null, bytes);
     response.bodyOutputStream.write(data, data.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/tests/browser/redirect_error.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/tests/browser/redirect_error.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/tests/browser/redirect_error.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/tests/browser/redirect_error.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -5,12 +5,12 @@
 const REDIRECT_TO = "https://www.bank1.com/"; // Bad-cert host.
 
 function handleRequest(aRequest, aResponse) {
- // Set HTTP Status
- aResponse.setStatusLine(aRequest.httpVersion, 301, "Moved Permanently");
+  // Set HTTP Status
+  aResponse.setStatusLine(aRequest.httpVersion, 301, "Moved Permanently");
 
- // Set redirect URI, mirroring the hash value.
- let hash = (/\#.+/.test(aRequest.path))? 
-              "#" + aRequest.path.split("#")[1]:
-              "";
- aResponse.setHeader("Location", REDIRECT_TO + hash);
+  // Set redirect URI, mirroring the hash value.
+  let hash = /\#.+/.test(aRequest.path)
+    ? "#" + aRequest.path.split("#")[1]
+    : "";
+  aResponse.setHeader("Location", REDIRECT_TO + hash);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/tests/browser/searchSuggestionEngine.sjs firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/tests/browser/searchSuggestionEngine.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/tests/browser/searchSuggestionEngine.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/tests/browser/searchSuggestionEngine.sjs	2021-10-20 19:28:14.000000000 +0000
@@ -18,15 +18,19 @@
     return memo;
   }, {});
 
-  let timeout = parseInt(params["timeout"]);
+  let timeout = parseInt(params.timeout);
   if (timeout) {
     // Write the response after a timeout.
     resp.processAsync();
     gTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-    gTimer.init(() => {
-      writeResponse(params, resp);
-      resp.finish();
-    }, timeout, Ci.nsITimer.TYPE_ONE_SHOT);
+    gTimer.init(
+      () => {
+        writeResponse(params, resp);
+        resp.finish();
+      },
+      timeout,
+      Ci.nsITimer.TYPE_ONE_SHOT
+    );
     return;
   }
 
@@ -36,14 +40,14 @@
 function writeResponse(params, resp) {
   // Echo back the search string with "foo" and "bar" appended.
   let suffixes = ["foo", "bar"];
-  if (params["count"]) {
+  if (params.count) {
     // Add more suffixes.
     let serial = 0;
-    while (suffixes.length < params["count"]) {
+    while (suffixes.length < params.count) {
       suffixes.push(++serial);
     }
   }
-  let data = [params["query"], suffixes.map(s => params["query"] + s)];
+  let data = [params.query, suffixes.map(s => params.query + s)];
   resp.setHeader("Content-Type", "application/json", false);
   resp.write(JSON.stringify(data));
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarMuxerUnifiedComplete.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarMuxerUnifiedComplete.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarMuxerUnifiedComplete.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarMuxerUnifiedComplete.jsm	2021-10-20 19:28:15.000000000 +0000
@@ -482,7 +482,7 @@
         while (summedFillableLimit != fillableLimit) {
           if (!fractionalDataArray.length) {
             // This shouldn't happen, but don't let it break us.
-            Cu.reportError("fractionalDataArray is empty!");
+            logger.error("fractionalDataArray is empty!");
             break;
           }
           let data = flexDataArray[fractionalDataArray.shift().index];
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderExtension.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderExtension.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderExtension.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderExtension.jsm	2021-10-20 19:28:14.000000000 +0000
@@ -203,9 +203,10 @@
     let extResults = await this._notifyListener("resultsRequested", context);
     if (extResults) {
       for (let extResult of extResults) {
-        let result = await this._makeUrlbarResult(context, extResult).catch(
-          Cu.reportError
-        );
+        let result = await this._makeUrlbarResult(
+          context,
+          extResult
+        ).catch(ex => this.logger.error(ex));
         if (result) {
           addCallback(this, result);
         }
@@ -282,7 +283,7 @@
     try {
       result = listener(...args);
     } catch (error) {
-      Cu.reportError(error);
+      this.logger.error(error);
       return undefined;
     }
     if (result.catch) {
@@ -296,7 +297,7 @@
       });
       result = await Promise.race([
         timer.promise,
-        result.catch(Cu.reportError),
+        result.catch(ex => this.logger.error(ex)),
       ]);
       timer.cancel();
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderOmnibox.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderOmnibox.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderOmnibox.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderOmnibox.jsm	2021-10-20 19:28:15.000000000 +0000
@@ -169,8 +169,8 @@
       time: MAXIMUM_ALLOWED_EXTENSION_TIME_MS,
       logger: this.logger,
     }).promise;
-    await Promise.race([timeoutPromise, this._resultsPromise]).catch(
-      Cu.reportError
+    await Promise.race([timeoutPromise, this._resultsPromise]).catch(ex =>
+      this.logger.error(ex)
     );
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderPlaces.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderPlaces.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderPlaces.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderPlaces.jsm	2021-10-20 19:28:14.000000000 +0000
@@ -1408,7 +1408,7 @@
         return conn;
       })().catch(ex => {
         dump("Couldn't get database handle: " + ex + "\n");
-        Cu.reportError(ex);
+        this.logger.error(ex);
       });
     }
     return this._promiseDatabase;
@@ -1529,7 +1529,7 @@
       .then(conn => search.execute(conn))
       .catch(ex => {
         dump(`Query failed: ${ex}\n`);
-        Cu.reportError(ex);
+        this.logger.error(ex);
       })
       .then(() => {
         if (search == this._currentSearch) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderPreloadedSites.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderPreloadedSites.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderPreloadedSites.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderPreloadedSites.jsm	2021-10-20 19:28:14.000000000 +0000
@@ -78,7 +78,7 @@
       fetch("chrome://browser/content/urlbar/preloaded-top-urls.json")
         .then(response => response.json())
         .then(sites => PreloadedSiteStorage.populate(sites))
-        .catch(ex => Cu.reportError(ex));
+        .catch(ex => this.logger.error(ex));
     }
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderQuickSuggest.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderQuickSuggest.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderQuickSuggest.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderQuickSuggest.jsm	2021-10-20 19:28:15.000000000 +0000
@@ -227,7 +227,7 @@
         r => r.providerName == this.name
       );
       if (resultIndex < 0) {
-        Cu.reportError(`Could not find quick suggest result`);
+        this.logger.error(`Could not find quick suggest result`);
         return;
       }
       result = queryContext.results[resultIndex];
@@ -346,7 +346,7 @@
     try {
       this._merinoFetchController?.abort();
     } catch (error) {
-      Cu.reportError(error);
+      this.logger.error(error);
     }
     this._merinoFetchController = null;
   }
@@ -382,7 +382,7 @@
     } catch (error) {
       TelemetryStopwatch.cancel(TELEMETRY_MERINO_LATENCY, queryContext);
       if (error.name != "AbortError") {
-        Cu.reportError(error);
+        this.logger.error(error);
       }
     } finally {
       if (controller == this._merinoFetchController) {
@@ -402,7 +402,7 @@
         return null;
       }
     } catch (error) {
-      Cu.reportError(error);
+      this.logger.error(error);
     }
 
     if (!body?.suggestions?.length) {
@@ -411,7 +411,7 @@
 
     let { suggestions } = body;
     if (!Array.isArray(suggestions)) {
-      Cu.reportError("Unexpected Merino response: " + JSON.stringify(body));
+      this.logger.error("Unexpected Merino response: " + JSON.stringify(body));
       return null;
     }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderSearchSuggestions.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderSearchSuggestions.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderSearchSuggestions.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderSearchSuggestions.jsm	2021-10-20 19:28:15.000000000 +0000
@@ -378,7 +378,7 @@
       }
 
       if (entry.tail && entry.tailOffsetIndex < 0) {
-        Cu.reportError(
+        this.logger.error(
           `Error in tail suggestion parsing. Value: ${entry.value}, tail: ${entry.tail}.`
         );
         continue;
@@ -393,7 +393,7 @@
       }
 
       if (!tail) {
-        await tailTimer.fire().catch(Cu.reportError);
+        await tailTimer.fire().catch(ex => this.logger.error(ex));
       }
 
       try {
@@ -415,7 +415,7 @@
           )
         );
       } catch (err) {
-        Cu.reportError(err);
+        this.logger.error(err);
         continue;
       }
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderSearchTips.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderSearchTips.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderSearchTips.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderSearchTips.jsm	2021-10-20 19:28:15.000000000 +0000
@@ -323,7 +323,7 @@
       return;
     }
 
-    this._maybeShowTipForUrl(uri.spec).catch(Cu.reportError);
+    this._maybeShowTipForUrl(uri.spec).catch(ex => this.logger.error(ex));
   }
 
   /**
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProvidersManager.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProvidersManager.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProvidersManager.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProvidersManager.jsm	2021-10-20 19:28:15.000000000 +0000
@@ -405,7 +405,7 @@
               }
             }
           })
-          .catch(Cu.reportError)
+          .catch(ex => logger.error(ex))
       );
     }
 
@@ -492,13 +492,13 @@
       provider.tryMethod("cancelQuery", this.context);
     }
     if (this._heuristicProviderTimer) {
-      this._heuristicProviderTimer.cancel().catch(Cu.reportError);
+      this._heuristicProviderTimer.cancel().catch(ex => logger.error(ex));
     }
     if (this._chunkTimer) {
-      this._chunkTimer.cancel().catch(Cu.reportError);
+      this._chunkTimer.cancel().catch(ex => logger.error(ex));
     }
     if (this._sleepTimer) {
-      this._sleepTimer.fire().catch(Cu.reportError);
+      this._sleepTimer.fire().catch(ex => logger.error(ex));
     }
   }
 
@@ -600,7 +600,7 @@
       this._heuristicProviderTimer &&
       !this.context.pendingHeuristicProviders.size
     ) {
-      this._heuristicProviderTimer.fire().catch(Cu.reportError);
+      this._heuristicProviderTimer.fire().catch(ex => logger.error(ex));
     }
   }
 
@@ -608,12 +608,12 @@
     this.muxer.sort(this.context);
 
     if (this._heuristicProviderTimer) {
-      this._heuristicProviderTimer.cancel().catch(Cu.reportError);
+      this._heuristicProviderTimer.cancel().catch(ex => logger.error(ex));
       this._heuristicProviderTimer = null;
     }
 
     if (this._chunkTimer) {
-      this._chunkTimer.cancel().catch(Cu.reportError);
+      this._chunkTimer.cancel().catch(ex => logger.error(ex));
       this._chunkTimer = null;
     }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderTabToSearch.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderTabToSearch.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderTabToSearch.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderTabToSearch.jsm	2021-10-20 19:28:15.000000000 +0000
@@ -309,7 +309,9 @@
       // is likely because your test showed a tab-to-search result but did not
       // start and end the engagement in which it was shown. Be sure to fire an
       // input event to start an engagement and blur the Urlbar to end it.
-      Cu.reportError(`Exception while recording TabToSearch telemetry: ${ex})`);
+      this.logger.error(
+        `Exception while recording TabToSearch telemetry: ${ex})`
+      );
     } finally {
       // Even if there's an exception, we want to clear these Sets. Otherwise,
       // we might get into a state where we repeatedly run the same engines
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderTopSites.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderTopSites.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarProviderTopSites.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarProviderTopSites.jsm	2021-10-20 19:28:14.000000000 +0000
@@ -282,7 +282,7 @@
           break;
         }
         default:
-          Cu.reportError(`Unknown Top Site type: ${site.type}`);
+          this.logger.error(`Unknown Top Site type: ${site.type}`);
           break;
       }
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarResult.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarResult.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/components/urlbar/UrlbarResult.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/components/urlbar/UrlbarResult.jsm	2021-10-20 19:28:15.000000000 +0000
@@ -296,7 +296,7 @@
    */
   static addDynamicResultType(name, type = {}) {
     if (/[^a-z0-9_-]/i.test(name)) {
-      Cu.reportError(`Illegal dynamic type name: ${name}`);
+      this.logger.error(`Illegal dynamic type name: ${name}`);
       return;
     }
     this._dynamicResultTypesByName.set(name, type);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/extensions/webcompat/data/shims.js firefox-trunk-95.0~a1~hg20211020r596404/browser/extensions/webcompat/data/shims.js
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/extensions/webcompat/data/shims.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/extensions/webcompat/data/shims.js	2021-10-20 19:28:15.000000000 +0000
@@ -486,7 +486,7 @@
   },
   {
     id: "Kinja",
-    platform: "all",
+    platform: "desktop",
     name: "Kinja",
     bug: "1656171",
     contentScripts: [
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/extensions/webcompat/manifest.json firefox-trunk-95.0~a1~hg20211020r596404/browser/extensions/webcompat/manifest.json
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/extensions/webcompat/manifest.json	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/extensions/webcompat/manifest.json	2021-10-20 19:28:15.000000000 +0000
@@ -2,7 +2,7 @@
   "manifest_version": 2,
   "name": "Web Compatibility Interventions",
   "description": "Urgent post-release fixes for web compatibility.",
-  "version": "27.2.0",
+  "version": "27.3.0",
   "applications": {
     "gecko": {
       "id": "webcompat@mozilla.org",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/locales/en-US/browser/downloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/browser/locales/en-US/browser/downloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/locales/en-US/browser/downloads.ftl	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/locales/en-US/browser/downloads.ftl	2021-10-20 19:28:15.000000000 +0000
@@ -29,14 +29,11 @@
 downloads-cmd-cancel-panel =
     .aria-label = Cancel
 
-# This message is only displayed on Windows and Linux devices
-downloads-cmd-show-menuitem =
-  .label = Open Containing Folder
-  .accesskey = F
-
-# This message is only displayed on macOS devices
-downloads-cmd-show-menuitem-mac =
-  .label = Show In Finder
+downloads-cmd-show-menuitem-2 =
+  .label = { PLATFORM() ->
+      [macos] Show in Finder
+     *[other] Show in Folder
+  }
   .accesskey = F
 
 downloads-cmd-use-system-default =
@@ -47,21 +44,21 @@
   .label = Always Open In System Viewer
   .accesskey = w
 
-downloads-cmd-show-button =
+downloads-cmd-show-button-2 =
   .tooltiptext = { PLATFORM() ->
-      [macos] Show In Finder
-     *[other] Open Containing Folder
+      [macos] Show in Finder
+     *[other] Show in Folder
   }
 
-downloads-cmd-show-panel =
+downloads-cmd-show-panel-2 =
   .aria-label = { PLATFORM() ->
-      [macos] Show In Finder
-     *[other] Open Containing Folder
+      [macos] Show in Finder
+     *[other] Show in Folder
   }
-downloads-cmd-show-description =
+downloads-cmd-show-description-2 =
   .value = { PLATFORM() ->
-      [macos] Show In Finder
-     *[other] Open Containing Folder
+      [macos] Show in Finder
+     *[other] Show in Folder
   }
 
 downloads-cmd-show-downloads =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/locales/en-US/chrome/browser/downloads/downloads.properties firefox-trunk-95.0~a1~hg20211020r596404/browser/locales/en-US/chrome/browser/downloads/downloads.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/locales/en-US/chrome/browser/downloads/downloads.properties	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/locales/en-US/chrome/browser/downloads/downloads.properties	2021-10-20 19:28:15.000000000 +0000
@@ -82,17 +82,3 @@
 # semi-colon list of plural forms.
 # See: http://developer.mozilla.org/en/Localization_and_Plurals
 otherDownloads3=%1$S file downloading;%1$S files downloading
-
-# LOCALIZATION NOTE (showLabel, showMacLabel):
-# This is displayed when you hover a download item in the Library widget view.
-# showMacLabel is only shown on Mac OSX.
-showLabel=Open Containing Folder
-showMacLabel=Open In Finder
-# LOCALIZATION NOTE (openFileLabel):
-# Displayed when hovering a complete download, indicates that it's possible to
-# open the file using an app available in the system.
-openFileLabel=Open File
-# LOCALIZATION NOTE (retryLabel):
-# Displayed when hovering a download which is able to be retried by users,
-# indicates that it's possible to download this file again.
-retryLabel=Retry Download
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/modules/PingCentre.jsm firefox-trunk-95.0~a1~hg20211020r596404/browser/modules/PingCentre.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/modules/PingCentre.jsm	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/modules/PingCentre.jsm	2021-10-20 19:28:15.000000000 +0000
@@ -21,7 +21,7 @@
 );
 ChromeUtils.defineModuleGetter(
   this,
-  "TelemetrySend",
+  "sendStandalonePing",
   "resource://gre/modules/TelemetrySend.jsm"
 );
 
@@ -109,7 +109,7 @@
 
   // We route through this helper because it gets hooked in testing.
   static _sendStandalonePing(endpoint, payload) {
-    return TelemetrySend.sendStandalonePing(endpoint, payload);
+    return sendStandalonePing(endpoint, payload);
   }
 
   /**
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/browser/themes/linux/browser.css firefox-trunk-95.0~a1~hg20211020r596404/browser/themes/linux/browser.css
--- firefox-trunk-95.0~a1~hg20211017r596111/browser/themes/linux/browser.css	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/browser/themes/linux/browser.css	2021-10-20 19:28:15.000000000 +0000
@@ -333,16 +333,8 @@
 
 /* We draw to titlebar when Gkt+ CSD is available */
 @media (-moz-gtk-csd-available) {
-  /* Some Gtk+ themes use non-rectangular toplevel windows. To fully support
-   * such themes we need to make toplevel window transparent.
-   * It may cause performance issues so let's put it under a preference
-   * and enable it for desktop environment which do that by default.
-   * See nsWindow::TopLevelWindowUseARGBVisual() for details. */
-  @media (-moz-gtk-csd-transparent-background) {
-    :root[tabsintitlebar][sizemode="normal"]:not(:-moz-lwtheme) {
-      background-color: transparent;
-      appearance: none;
-    }
+  :root[tabsintitlebar][sizemode="normal"]:not(:-moz-lwtheme) {
+    background-color: transparent;
   }
 
   :root[tabsintitlebar] #titlebar {
@@ -404,46 +396,40 @@
 
   /* Render titlebar command buttons according to system config.
    * Use full scale icons here as the Gtk+ does. */
-  @media (-moz-gtk-csd-minimize-button) {
-    .titlebar-min {
-      appearance: auto;
-      -moz-default-appearance: -moz-window-button-minimize;
-    }
+  .titlebar-min {
+    appearance: auto;
+    -moz-default-appearance: -moz-window-button-minimize;
   }
-  @media (-moz-gtk-csd-minimize-button: 0) {
-    .titlebar-min {
-      display: none;
-    }
+  .titlebar-max {
+    appearance: auto;
+    -moz-default-appearance: -moz-window-button-maximize;
+  }
+  .titlebar-restore {
+    appearance: auto;
+    -moz-default-appearance: -moz-window-button-restore;
+  }
+  .titlebar-close {
+    appearance: auto;
+    -moz-default-appearance: -moz-window-button-close;
   }
 
-  @media (-moz-gtk-csd-maximize-button) {
-    .titlebar-max {
-      appearance: auto;
-      -moz-default-appearance: -moz-window-button-maximize;
-    }
-    .titlebar-restore {
-      appearance: auto;
-      -moz-default-appearance: -moz-window-button-restore;
+  @media not (-moz-gtk-csd-minimize-button) {
+    .titlebar-min {
+      display: none;
     }
   }
-  @media (-moz-gtk-csd-maximize-button: 0) {
+  @media not (-moz-gtk-csd-maximize-button) {
     .titlebar-restore,
     .titlebar-max {
       display: none;
     }
   }
-
-  @media (-moz-gtk-csd-close-button) {
-    .titlebar-close {
-      appearance: auto;
-      -moz-default-appearance: -moz-window-button-close;
-    }
-  }
-  @media (-moz-gtk-csd-close-button: 0) {
+  @media not (-moz-gtk-csd-close-button) {
     .titlebar-close {
       display: none;
     }
   }
+
   @media (-moz-gtk-csd-reversed-placement) {
     .titlebar-buttonbox-container,
     .titlebar-close {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/build/mach_virtualenv_packages.txt firefox-trunk-95.0~a1~hg20211020r596404/build/mach_virtualenv_packages.txt
--- firefox-trunk-95.0~a1~hg20211017r596111/build/mach_virtualenv_packages.txt	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/build/mach_virtualenv_packages.txt	2021-10-20 19:28:15.000000000 +0000
@@ -6,4 +6,4 @@
 # We aren't (yet) able to pin packages in automation, so we have to
 # support down to the oldest locally-installed version (5.4.2).
 pypi-optional:psutil>=5.4.2,<=5.8.0:telemetry will be missing some data
-pypi-optional:zstandard>=0.11.1,<=0.15.2:zstd archives will not be possible to extract
+pypi-optional:zstandard>=0.11.1,<=0.16.0:zstd archives will not be possible to extract
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/build/moz.configure/nss.configure firefox-trunk-95.0~a1~hg20211020r596404/build/moz.configure/nss.configure
--- firefox-trunk-95.0~a1~hg20211017r596111/build/moz.configure/nss.configure	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/build/moz.configure/nss.configure	2021-10-20 19:28:15.000000000 +0000
@@ -9,7 +9,7 @@
 imply_option("--with-system-nspr", True, when="--with-system-nss")
 
 nss_pkg = pkg_check_modules(
-    "NSS", "nss >= 3.71", when="--with-system-nss", config=False
+    "NSS", "nss >= 3.72", when="--with-system-nss", config=False
 )
 
 set_config("MOZ_SYSTEM_NSS", True, when="--with-system-nss")
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/build/win32/orderfile.txt firefox-trunk-95.0~a1~hg20211020r596404/build/win32/orderfile.txt
--- firefox-trunk-95.0~a1~hg20211017r596111/build/win32/orderfile.txt	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/build/win32/orderfile.txt	2021-10-20 19:28:15.000000000 +0000
@@ -12026,7 +12026,6 @@
 ?HasMultipleChildren@ContainerLayer@layers@mozilla@@QAE_NXZ
 ?GetEffectiveOpacity@Layer@layers@mozilla@@QAEMXZ
 ?ComputeEffectiveTransformsForChildren@ContainerLayer@layers@mozilla@@IAEXABV?$Matrix4x4Typed@UUnknownUnits@gfx@mozilla@@U123@M@gfx@3@@Z
-??_GReadbackLayer@layers@mozilla@@UAEPAXI@Z
 ?JS_GetFunctionDisplayId@@YAPAVJSString@@PAVJSFunction@@@Z
 ??1ReadbackProcessor@layers@mozilla@@QAE@XZ
 ?GetClipExtents@gfxContext@@QBE?AU?$RectTyped@UUnknownUnits@gfx@mozilla@@N@gfx@mozilla@@W4ClipExtentsSpace@1@@Z
@@ -17447,7 +17446,6 @@
 ?Unlink@cycleCollection@DOMEventTargetHelper@mozilla@@UAGXPAX@Z
 ?nsCycleCollector_doDeferredDeletion@@YA_NXZ
 ?WriteToFile@nsINIParser_internal@@QAE?AW4nsresult@@PAVnsIFile@@@Z
-?GetType@ReadbackLayer@layers@mozilla@@UBE?AW4LayerType@Layer@23@XZ
 ?functionBodyString@ScriptSource@js@@QAEPAVJSLinearString@@PAUJSContext@@@Z
 ??0Compressor@js@@QAE@PBEI@Z
 ?init@Compressor@js@@QAE_NXZ
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/build/win64/orderfile.txt firefox-trunk-95.0~a1~hg20211020r596404/build/win64/orderfile.txt
--- firefox-trunk-95.0~a1~hg20211017r596111/build/win64/orderfile.txt	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/build/win64/orderfile.txt	2021-10-20 19:28:15.000000000 +0000
@@ -13261,7 +13261,6 @@
 ?GetEffectiveOperator@layers@mozilla@@YA?AW4CompositionOp@gfx@2@PEAVLayer@12@@Z
 ?HasMultipleChildren@ContainerLayer@layers@mozilla@@QEAA_NXZ
 ?ComputeEffectiveTransformsForChildren@ContainerLayer@layers@mozilla@@IEAAXAEBV?$Matrix4x4Typed@UUnknownUnits@gfx@mozilla@@U123@M@gfx@3@@Z
-??_GReadbackLayer@layers@mozilla@@UEAAPEAXI@Z
 ?GetClipExtents@gfxContext@@QEBA?AU?$RectTyped@UUnknownUnits@gfx@mozilla@@N@gfx@mozilla@@W4ClipExtentsSpace@1@@Z
 ?GetRect@DrawTarget@gfx@mozilla@@UEBA?AU?$IntRectTyped@UUnknownUnits@gfx@mozilla@@@23@XZ
 ?ToOutsideIntRect@layers@mozilla@@YA?AU?$IntRectTyped@UUnknownUnits@gfx@mozilla@@@gfx@2@AEBU?$RectTyped@UUnknownUnits@gfx@mozilla@@N@42@@Z
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/build/zstandard_requirements.in firefox-trunk-95.0~a1~hg20211020r596404/build/zstandard_requirements.in
--- firefox-trunk-95.0~a1~hg20211017r596111/build/zstandard_requirements.in	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/build/zstandard_requirements.in	2021-10-20 19:28:15.000000000 +0000
@@ -1,2 +1,2 @@
-zstandard==0.15.2
+zstandard==0.16.0
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/build/zstandard_requirements.txt firefox-trunk-95.0~a1~hg20211020r596404/build/zstandard_requirements.txt
--- firefox-trunk-95.0~a1~hg20211017r596111/build/zstandard_requirements.txt	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/build/zstandard_requirements.txt	2021-10-20 19:28:15.000000000 +0000
@@ -1,56 +1,52 @@
 #
-# This file is autogenerated by pip-compile
+# This file is autogenerated by pip-compile with python 3.9
 # To update, run:
 #
 #    pip-compile --generate-hashes --output-file=build/zstandard_requirements.txt build/zstandard_requirements.in
 #
-zstandard==0.15.2 \
-    --hash=sha256:1c5ef399f81204fbd9f0df3debf80389fd8aa9660fe1746d37c80b0d45f809e9 \
-    --hash=sha256:1faefe33e3d6870a4dce637bcb41f7abb46a1872a595ecc7b034016081c37543 \
-    --hash=sha256:1fb23b1754ce834a3a1a1e148cc2faad76eeadf9d889efe5e8199d3fb839d3c6 \
-    --hash=sha256:22f127ff5da052ffba73af146d7d61db874f5edb468b36c9cb0b857316a21b3d \
-    --hash=sha256:2353b61f249a5fc243aae3caa1207c80c7e6919a58b1f9992758fa496f61f839 \
-    --hash=sha256:24cdcc6f297f7c978a40fb7706877ad33d8e28acc1786992a52199502d6da2a4 \
-    --hash=sha256:31e35790434da54c106f05fa93ab4d0fab2798a6350e8a73928ec602e8505836 \
-    --hash=sha256:3547ff4eee7175d944a865bbdf5529b0969c253e8a148c287f0668fe4eb9c935 \
-    --hash=sha256:378ac053c0cfc74d115cbb6ee181540f3e793c7cca8ed8cd3893e338af9e942c \
-    --hash=sha256:3e1cd2db25117c5b7c7e86a17cde6104a93719a9df7cb099d7498e4c1d13ee5c \
-    --hash=sha256:3fe469a887f6142cc108e44c7f42c036e43620ebaf500747be2317c9f4615d4f \
-    --hash=sha256:4800ab8ec94cbf1ed09c2b4686288750cab0642cb4d6fba2a56db66b923aeb92 \
-    --hash=sha256:52de08355fd5cfb3ef4533891092bb96229d43c2069703d4aff04fdbedf9c92f \
-    --hash=sha256:5752f44795b943c99be367fee5edf3122a1690b0d1ecd1bd5ec94c7fd2c39c94 \
-    --hash=sha256:5d53f02aeb8fdd48b88bc80bece82542d084fb1a7ba03bf241fd53b63aee4f22 \
-    --hash=sha256:69b7a5720b8dfab9005a43c7ddb2e3ccacbb9a2442908ae4ed49dd51ab19698a \
-    --hash=sha256:6cc162b5b6e3c40b223163a9ea86cd332bd352ddadb5fd142fc0706e5e4eaaff \
-    --hash=sha256:6f5d0330bc992b1e267a1b69fbdbb5ebe8c3a6af107d67e14c7a5b1ede2c5945 \
-    --hash=sha256:6ffadd48e6fe85f27ca3ca10cfd3ef3d0f933bef7316870285ffeb58d791ca9c \
-    --hash=sha256:72a011678c654df8323aa7b687e3147749034fdbe994d346f139ab9702b59cea \
-    --hash=sha256:77d26452676f471223571efd73131fd4a626622c7960458aab2763e025836fc5 \
-    --hash=sha256:7a88cc773ffe55992ff7259a8df5fb3570168d7138c69aadba40142d0e5ce39a \
-    --hash=sha256:7b16bd74ae7bfbaca407a127e11058b287a4267caad13bd41305a5e630472549 \
-    --hash=sha256:855d95ec78b6f0ff66e076d5461bf12d09d8e8f7e2b3fc9de7236d1464fd730e \
-    --hash=sha256:8baf7991547441458325ca8fafeae79ef1501cb4354022724f3edd62279c5b2b \
-    --hash=sha256:8fb77dd152054c6685639d855693579a92f276b38b8003be5942de31d241ebfb \
-    --hash=sha256:92d49cc3b49372cfea2d42f43a2c16a98a32a6bc2f42abcde121132dbfc2f023 \
-    --hash=sha256:94d0de65e37f5677165725f1fc7fb1616b9542d42a9832a9a0bdcba0ed68b63b \
-    --hash=sha256:9867206093d7283d7de01bd2bf60389eb4d19b67306a0a763d1a8a4dbe2fb7c3 \
-    --hash=sha256:9ee3c992b93e26c2ae827404a626138588e30bdabaaf7aa3aa25082a4e718790 \
-    --hash=sha256:a4f8af277bb527fa3d56b216bda4da931b36b2d3fe416b6fc1744072b2c1dbd9 \
-    --hash=sha256:ab9f19460dfa4c5dd25431b75bee28b5f018bf43476858d64b1aa1046196a2a0 \
-    --hash=sha256:ac43c1821ba81e9344d818c5feed574a17f51fca27976ff7d022645c378fbbf5 \
-    --hash=sha256:af5a011609206e390b44847da32463437505bf55fd8985e7a91c52d9da338d4b \
-    --hash=sha256:b0975748bb6ec55b6d0f6665313c2cf7af6f536221dccd5879b967d76f6e7899 \
-    --hash=sha256:b4963dad6cf28bfe0b61c3265d1c74a26a7605df3445bfcd3ba25de012330b2d \
-    --hash=sha256:b7d3a484ace91ed827aa2ef3b44895e2ec106031012f14d28bd11a55f24fa734 \
-    --hash=sha256:bd3c478a4a574f412efc58ba7e09ab4cd83484c545746a01601636e87e3dbf23 \
-    --hash=sha256:c9e2dcb7f851f020232b991c226c5678dc07090256e929e45a89538d82f71d2e \
-    --hash=sha256:d25c8eeb4720da41e7afbc404891e3a945b8bb6d5230e4c53d23ac4f4f9fc52c \
-    --hash=sha256:dc8c03d0c5c10c200441ffb4cce46d869d9e5c4ef007f55856751dc288a2dffd \
-    --hash=sha256:ec58e84d625553d191a23d5988a19c3ebfed519fff2a8b844223e3f074152163 \
-    --hash=sha256:eda0719b29792f0fea04a853377cfff934660cb6cd72a0a0eeba7a1f0df4a16e \
-    --hash=sha256:edde82ce3007a64e8434ccaf1b53271da4f255224d77b880b59e7d6d73df90c8 \
-    --hash=sha256:f36722144bc0a5068934e51dca5a38a5b4daac1be84f4423244277e4baf24e7a \
-    --hash=sha256:f8bb00ced04a8feff05989996db47906673ed45b11d86ad5ce892b5741e5f9dd \
-    --hash=sha256:f98fc5750aac2d63d482909184aac72a979bfd123b112ec53fd365104ea15b1c \
-    --hash=sha256:ff5b75f94101beaa373f1511319580a010f6e03458ee51b1a386d7de5331440a
+zstandard==0.16.0 \
+    --hash=sha256:066488e721ec882485a500c216302b443f2eaef39356f7c65130e76c671e3ce2 \
+    --hash=sha256:08a728715858f1477239887ba3c692bc462b2c86e7a8e467dc5affa7bba9093f \
+    --hash=sha256:11216b47c62e9fc71a25f4b42f525a81da268071bdb434bc1e642ffc38a24a02 \
+    --hash=sha256:127c4c93f578d9b509732c74ed9b44b23e94041ba11b13827be0a7d2e3869b39 \
+    --hash=sha256:12dddee2574b00c262270cfb46bd0c048e92208b95fdd39ad2a9eac1cef30498 \
+    --hash=sha256:1bdda52224043e13ed20f847e3b308de1c9372d1563824fad776b1cf1f847ef0 \
+    --hash=sha256:2e31680d1bcf85e7a58a45df7365af894402ae77a9868c751dc991dd13099a5f \
+    --hash=sha256:42992e89b250fe6878c175119af529775d4be7967cd9de86990145d615d6a444 \
+    --hash=sha256:453e42af96923582ddbf3acf843f55d2dc534a3f7b345003852dd522aa51eae6 \
+    --hash=sha256:4d8a296dab7f8f5d53acc693a6785751f43ca39b51c8eabc672f978306fb40e6 \
+    --hash=sha256:5251ac352d8350869c404a0ca94457da018b726f692f6456ec82bbf907fbc956 \
+    --hash=sha256:57a6cfc34d906d514358769ed6d510b312be1cf033aafb5db44865a6717579bd \
+    --hash=sha256:6ed51162e270b9b8097dcae6f2c239ada05ec112194633193ec3241498988924 \
+    --hash=sha256:74cbea966462afed5a89eb99e4577538d10d425e05bf6240a75c086d59ccaf89 \
+    --hash=sha256:87bea44ad24c15cd872263c0d5f912186a4be3db361eab3b25f1a61dcb5ca014 \
+    --hash=sha256:8a745862ed525eee4e28bdbd58bf3ea952bf9da3c31bb4e4ce11ef15aea5c625 \
+    --hash=sha256:8b760fc8118b1a0aa1d8f4e2012622e8f5f178d4b8cb94f8c6d2948b6a49a485 \
+    --hash=sha256:8c8c0e813b67de1c9d7f2760768c4ae53f011c75ace18d5cff4fb40d2173763f \
+    --hash=sha256:8d5fe983e23b05f0e924fe8d0dd3935f0c9fd3266e4c6ff8621c12c350da299d \
+    --hash=sha256:8f5785c0b9b71d49d789240ae16a636728596631cf100f32b963a6f9857af5a4 \
+    --hash=sha256:91efd5ea5fb3c347e7ebb6d5622bfa37d72594a2dec37c5dde70b691edb6cc03 \
+    --hash=sha256:92e6c1a656390176d51125847f2f422f9d8ed468c24b63958f6ee50d9aa98c83 \
+    --hash=sha256:9bcbfe1ec89789239f63daeea8778488cb5ba9034a374d7753815935f83dad65 \
+    --hash=sha256:a92aa26789f17ca3b1f45cc7e728597165e2b166b99d1204bb397a672edee761 \
+    --hash=sha256:a9ec6de2c058e611e9dfe88d9809a5676bc1d2a53543c1273a90a60e41b8f43c \
+    --hash=sha256:ac5d97f9dece91a1162f651da79b735c5cde4d5863477785962aad648b592446 \
+    --hash=sha256:ae19628886d994ac1f3d2fc7f9ed5bb551d81000f7b4e0c57a0e88301aea2766 \
+    --hash=sha256:b2ea1937eff0ed5621876dc377933fe76624abfb2ab5b418995f43af6bac50de \
+    --hash=sha256:b46220bef7bf9271a2a05512e86acbabc86cca08bebde8447bdbb4acb3179447 \
+    --hash=sha256:b61586b0ff55c4137e512f1e9df4e4d7a6e1e9df782b4b87652df27737c90cc1 \
+    --hash=sha256:be68fbac1e88f0dbe033a2d2e3aaaf9c8307730b905f3cd3c698ca4b904f0702 \
+    --hash=sha256:c75557d53bb2d064521ff20cce9b8a51ee8301e031b1d6bcedb6458dda3bc85d \
+    --hash=sha256:c7e6b6ad58ae6f77872da9376ef0ecbf8c1ae7a0c8fc29a2473abc90f79a9a1b \
+    --hash=sha256:c8828f4e78774a6c0b8d21e59677f8f48d2e17fe2ef72793c94c10abc032c41c \
+    --hash=sha256:cae9bfcb9148152f8bfb9163b4b779326ca39fe9889e45e0572c56d25d5021be \
+    --hash=sha256:ce61492764d0442ca1e81d38d7bf7847d7df5003bce28089bab64c0519749351 \
+    --hash=sha256:d40447f4a44b442fa6715779ff49a1e319729d829198279927d18bca0d7ac32d \
+    --hash=sha256:d9946cfe54bf3365f14a5aa233eb2425de3b77eac6a4c7d03dda7dbb6acd3267 \
+    --hash=sha256:dd5a2287893e52204e4ce9d0e1bcea6240661dbb412efb53d5446b881d3c10a2 \
+    --hash=sha256:e9456492eb13249841e53221e742bef93f4868122bfc26bafa12a07677619732 \
+    --hash=sha256:eaae2d3e8fdf8bfe269628385087e4b648beef85bb0c187644e7df4fb0fe9046 \
+    --hash=sha256:eba125d3899f2003debf97019cd6f46f841a405df067da23d11443ad17952a40 \
+    --hash=sha256:ef759c1dfe78aa5a01747d3465d2585de14e08fc2b0195ce3f31f45477fc5a72 \
+    --hash=sha256:ffe1d24c5e11e98e4c5f96f846cdd19619d8c7e5e8e5082bed62d39baa30cecb
     # via -r build/zstandard_requirements.in
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/BUILDID firefox-trunk-95.0~a1~hg20211020r596404/BUILDID
--- firefox-trunk-95.0~a1~hg20211017r596111/BUILDID	2021-10-17 14:49:53.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/BUILDID	2021-10-20 19:39:50.000000000 +0000
@@ -1 +1 @@
-20211017163927
\ No newline at end of file
+20211020210652
\ No newline at end of file
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/caps/ContentPrincipalInfoHashKey.h firefox-trunk-95.0~a1~hg20211020r596404/caps/ContentPrincipalInfoHashKey.h
--- firefox-trunk-95.0~a1~hg20211017r596111/caps/ContentPrincipalInfoHashKey.h	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/caps/ContentPrincipalInfoHashKey.h	2021-10-20 19:28:15.000000000 +0000
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef CAPS_PRINCIPALHASHKEY_H_
+#define CAPS_PRINCIPALHASHKEY_H_
+
+#include "mozilla/ipc/PBackgroundSharedTypes.h"
+#include "PLDHashTable.h"
+#include "nsHashKeys.h"
+#include "nsUnicharUtils.h"
+
+namespace mozilla {
+
+class ContentPrincipalInfoHashKey : public PLDHashEntryHdr {
+ public:
+  using KeyType = const ipc::ContentPrincipalInfo&;
+  using KeyTypePointer = const ipc::ContentPrincipalInfo*;
+
+  explicit ContentPrincipalInfoHashKey(KeyTypePointer aKey)
+      : mPrincipalInfo(*aKey) {
+    MOZ_COUNT_CTOR(ContentPrincipalInfoHashKey);
+  }
+  ContentPrincipalInfoHashKey(ContentPrincipalInfoHashKey&& aOther) noexcept
+      : mPrincipalInfo(aOther.mPrincipalInfo) {
+    MOZ_COUNT_CTOR(ContentPrincipalInfoHashKey);
+  }
+
+  MOZ_COUNTED_DTOR(ContentPrincipalInfoHashKey)
+
+  KeyType GetKey() const { return mPrincipalInfo; }
+
+  bool KeyEquals(KeyTypePointer aKey) const {
+    // Mocks BasePrincipal::FastEquals()
+    return mPrincipalInfo.originNoSuffix() == aKey->originNoSuffix() &&
+           mPrincipalInfo.attrs() == aKey->attrs();
+  }
+
+  static KeyTypePointer KeyToPointer(KeyType aKey) { return &aKey; }
+  static PLDHashNumber HashKey(KeyTypePointer aKey) {
+    nsAutoCString suffix;
+    aKey->attrs().CreateSuffix(suffix);
+    return HashGeneric(HashString(aKey->originNoSuffix()), HashString(suffix));
+  }
+
+  enum { ALLOW_MEMMOVE = true };
+
+ protected:
+  const ipc::ContentPrincipalInfo mPrincipalInfo;
+};
+
+}  // namespace mozilla
+
+#endif  // CAPS_PRINCIPALHASHKEY_H_
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/caps/moz.build firefox-trunk-95.0~a1~hg20211020r596404/caps/moz.build
--- firefox-trunk-95.0~a1~hg20211017r596111/caps/moz.build	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/caps/moz.build	2021-10-20 19:28:15.000000000 +0000
@@ -31,6 +31,7 @@
 EXPORTS.mozilla = [
     "BasePrincipal.h",
     "ContentPrincipal.h",
+    "ContentPrincipalInfoHashKey.h",
     "ExpandedPrincipal.h",
     "NullPrincipal.h",
     "OriginAttributes.h",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/caps/tests/mochitest/file_bug1367586-redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/caps/tests/mochitest/file_bug1367586-redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/caps/tests/mochitest/file_bug1367586-redirect.sjs	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/caps/tests/mochitest/file_bug1367586-redirect.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -1,5 +1,8 @@
 function handleRequest(aRequest, aResponse) {
- aResponse.setStatusLine(aRequest.httpVersion, 302, "Moved");
- aResponse.setHeader("Location", "http://mochi.test:8888/tests/caps/tests/mochitest/file_bug1367586-target.html");
- aResponse.write("To be redirected to target");
+  aResponse.setStatusLine(aRequest.httpVersion, 302, "Moved");
+  aResponse.setHeader(
+    "Location",
+    "http://mochi.test:8888/tests/caps/tests/mochitest/file_bug1367586-target.html"
+  );
+  aResponse.write("To be redirected to target");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/.clang-format-ignore firefox-trunk-95.0~a1~hg20211020r596404/.clang-format-ignore
--- firefox-trunk-95.0~a1~hg20211017r596111/.clang-format-ignore	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/.clang-format-ignore	2021-10-20 19:28:14.000000000 +0000
@@ -4,7 +4,7 @@
 config/gcc-stl-wrapper.template.h
 config/msvc-stl-wrapper.template.h
 # Generated code
-js/src/builtin/intl/LanguageTagGenerated.cpp
+intl/components/src/LocaleGenerated.cpp
 js/src/builtin/intl/TimeZoneDataGenerated.h
 
 # Don't want to reformat irregexp (third-party code)
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/debian/changelog firefox-trunk-95.0~a1~hg20211020r596404/debian/changelog
--- firefox-trunk-95.0~a1~hg20211017r596111/debian/changelog	2021-10-17 14:56:18.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/debian/changelog	2021-10-20 20:34:09.000000000 +0000
@@ -1,9 +1,9 @@
-firefox-trunk (95.0~a1~hg20211017r596111-0ubuntu0.21.04.1~umd1) hirsute; urgency=emergency
+firefox-trunk (95.0~a1~hg20211020r596404-0ubuntu0.21.04.1~umd1) hirsute; urgency=emergency
 
   * 
   * New upstream snapshot
 
- -- Rico Tzschichholz <ricotz@ubuntu.com>  Sun, 17 Oct 2021 16:56:18 +0200
+ -- Rico Tzschichholz <ricotz@ubuntu.com>  Wed, 20 Oct 2021 22:34:09 +0200
 
 firefox-trunk (94.0~a1~hg20211004r594164-0ubuntu1) impish; urgency=medium
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/debugger/panel.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/debugger/panel.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/debugger/panel.js	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/debugger/panel.js	2021-10-20 19:28:15.000000000 +0000
@@ -185,6 +185,19 @@
     return this._actions.getMappedExpression(expression);
   }
 
+  /**
+   * Return the source-mapped variables for the current scope.
+   * @returns {{[String]: String} | null} A dictionary mapping original variable names to generated
+   * variable names if map scopes is enabled, otherwise null.
+   */
+  getMappedVariables() {
+    if (!this._selectors.isMapScopesEnabled(this._getState())) {
+      return null;
+    }
+    const thread = this._selectors.getCurrentThread(this._getState());
+    return this._selectors.getSelectedScopeMappings(this._getState(), thread);
+  }
+
   isPaused() {
     const thread = this._selectors.getCurrentThread(this._getState());
     return this._selectors.getIsPaused(this._getState(), thread);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/debugger/test/mochitest/browser.ini firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/debugger/test/mochitest/browser.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/debugger/test/mochitest/browser.ini	2021-10-17 14:42:32.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/debugger/test/mochitest/browser.ini	2021-10-20 19:28:15.000000000 +0000
@@ -211,6 +211,7 @@
   !serviceworker_e10s # parent intercept mode is needed bug 1588154. Bug 1613543, the test consistently timeouts on Linux coverage builds and WR debug builds.
   (os == 'linux' && (ccov || (webrender && !swgl && debug)))
   win10_2004 && ccov # Bug 1727943
+  os == "linux" && bits == 64 && debug # Bug 1732486
 [browser_dbg-worker-scopes.js]
 skip-if =
   os == 'linux' && debug # Bug 1456013
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/devtools.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/devtools.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/devtools.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/devtools.js	2021-10-20 19:28:15.000000000 +0000
@@ -371,7 +371,7 @@
       !isCoreTheme &&
       theme.id == currTheme
     ) {
-      setTheme("auto");
+      setTheme("light");
 
       this.emit("theme-unregistered", theme);
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/browser.ini firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/browser.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/browser.ini	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/browser.ini	2021-10-20 19:28:15.000000000 +0000
@@ -174,6 +174,8 @@
 [browser_two_tabs.js]
 [browser_webextension_descriptor.js]
 [browser_webextension_dropdown.js]
+skip-if =
+  os == "linux" && bits == 64 && !debug # Bug 1714106
 # We want these tests to run for mochitest-dt as well, so we include them here:
 [../../../../browser/base/content/test/static/browser_parsable_css.js]
 skip-if = debug || asan || (os == 'linux' && bits == 32) # no point in running on both opt and debug, and will likely intermittently timeout on debug
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/browser_target_parents.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/browser_target_parents.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/browser_target_parents.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/browser_target_parents.js	2021-10-20 19:28:15.000000000 +0000
@@ -20,8 +20,9 @@
   const tabDescriptors = await mainRoot.listTabs();
 
   await testGetTargetWithConcurrentCalls(tabDescriptors, tabTarget => {
-    // Tab Target is attached when it has a console front.
-    return !!tabTarget.getCachedFront("console");
+    // We only call BrowsingContextTargetFront.attach and not TargetMixin.attachAndInitThread.
+    // So very few things are done.
+    return !!tabTarget.traits;
   });
 
   await client.close();
@@ -40,8 +41,9 @@
   // happens between the instantiation of ContentProcessTarget and its call to attach() from getTarget
   // function.
   await testGetTargetWithConcurrentCalls(processes, processTarget => {
-    // Content Process Target is attached when it has a console front.
-    return !!processTarget.getCachedFront("console");
+    // We only call ContentProcessTargetFront.attach and not TargetMixin.attachAndInitThread.
+    // So nothing is done for content process targets.
+    return true;
   });
 
   await client.close();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/browser_toolbox_options_disable_cache.css.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/browser_toolbox_options_disable_cache.css.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/browser_toolbox_options_disable_cache.css.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/browser_toolbox_options_disable_cache.css.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,9 +1,9 @@
- /* Any copyright is dedicated to the Public Domain.
+/* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
 function handleRequest(request, response) {
   // This returns always new and different CSS content.
-  const page = `body::before { content: "${ Date.now() }"; }`;
+  const page = `body::before { content: "${Date.now()}"; }`;
   response.setHeader("Content-Type", "text/css; charset=utf-8", false);
   response.setHeader("Content-Length", page.length + "", false);
   response.write(page);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/browser_toolbox_options_disable_cache.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/browser_toolbox_options_disable_cache.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/browser_toolbox_options_disable_cache.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/browser_toolbox_options_disable_cache.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -1,20 +1,22 @@
-  /* Any copyright is dedicated to the Public Domain.
+/* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
 function handleRequest(request, response) {
-  let Etag = '"4d881ab-b03-435f0a0f9ef00"';
-  let IfNoneMatch = request.hasHeader("If-None-Match")
-                    ? request.getHeader("If-None-Match")
-                    : "";
-
-  let guid = 'xxxxxxxx-xxxx-xxxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
-    let r = Math.random() * 16 | 0;
-    let v = c === "x" ? r : (r & 0x3 | 0x8);
+  const Etag = '"4d881ab-b03-435f0a0f9ef00"';
+  const IfNoneMatch = request.hasHeader("If-None-Match")
+    ? request.getHeader("If-None-Match")
+    : "";
+
+  const guid = "xxxxxxxx-xxxx-xxxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function(
+    c
+  ) {
+    const r = (Math.random() * 16) | 0;
+    const v = c === "x" ? r : (r & 0x3) | 0x8;
 
     return v.toString(16);
   });
 
-  let page = "<!DOCTYPE html><html><body><h1>" + guid + "</h1></body></html>";
+  const page = "<!DOCTYPE html><html><body><h1>" + guid + "</h1></body></html>";
 
   response.setHeader("Etag", Etag, false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/browser_toolbox_theme_registration.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/browser_toolbox_theme_registration.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/browser_toolbox_theme_registration.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/browser_toolbox_theme_registration.js	2021-10-20 19:28:15.000000000 +0000
@@ -135,12 +135,12 @@
 
   is(
     gDevTools.getTheme(),
-    gDevTools.getAutoTheme(),
+    LIGHT_THEME_NAME,
     "getTheme returns the expected theme"
   );
   is(
     eventsRecorded.pop(),
-    gDevTools.getAutoTheme(),
+    LIGHT_THEME_NAME,
     "theme-changed fired with the expected theme"
   );
   ok(
@@ -151,10 +151,12 @@
   const doc = panelWin.frameElement.contentDocument;
   const themeBox = doc.getElementById("devtools-theme-box");
 
-  // The default theme must be selected now.
-  ok(
-    themeBox.querySelector(`#devtools-theme-box [value=auto]`).checked,
-    `auto theme must be selected`
+  // The default light theme must be selected now.
+  is(
+    themeBox.querySelector(`#devtools-theme-box [value=${LIGHT_THEME_NAME}]`)
+      .checked,
+    true,
+    `${LIGHT_THEME_NAME} theme must be selected`
   );
 
   gDevTools.off("theme-changed", onThemeChanged);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/metrics/browser_metrics.ini firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/metrics/browser_metrics.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/metrics/browser_metrics.ini	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/metrics/browser_metrics.ini	2021-10-20 19:28:15.000000000 +0000
@@ -11,4 +11,4 @@
 # the number of loaded modules.
 # This ini file is for all the _other_ tests, where such setup isn't relevant.
 [browser_metrics_pool.js]
-skip-if = debug || asan
+skip-if = false | true
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/sjs_code_bundle_reload_map.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/sjs_code_bundle_reload_map.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/sjs_code_bundle_reload_map.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/sjs_code_bundle_reload_map.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -13,12 +13,15 @@
   response.setHeader("Access-Control-Allow-Origin", "*", false);
 
   // Redirect to a different file each time.
-  let counter = 1 + (+getState("counter") % 2);
+  const counter = 1 + (+getState("counter") % 2);
 
-  let index = request.path.lastIndexOf("/");
-  let newPath = request.path.substr(0, index + 1) +
-      "code_bundle_reload_" + counter + ".js.map";
-  let newUrl = request.scheme + "://" + request.host + newPath;
+  const index = request.path.lastIndexOf("/");
+  const newPath =
+    request.path.substr(0, index + 1) +
+    "code_bundle_reload_" +
+    counter +
+    ".js.map";
+  const newUrl = request.scheme + "://" + request.host + newPath;
 
   response.setStatusLine(request.httpVersion, 302, "Found");
   response.setHeader("Location", newUrl);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/sjs_code_reload.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/sjs_code_reload.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/test/sjs_code_reload.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/test/sjs_code_reload.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -13,12 +13,12 @@
   response.setHeader("Access-Control-Allow-Origin", "*", false);
 
   // Redirect to a different file each time.
-  let counter = 1 + (+getState("counter") % 2);
+  const counter = 1 + (+getState("counter") % 2);
 
-  let index = request.path.lastIndexOf("/");
-  let newPath = request.path.substr(0, index + 1) +
-      "code_bundle_reload_" + counter + ".js";
-  let newUrl = request.scheme + "://" + request.host + newPath;
+  const index = request.path.lastIndexOf("/");
+  const newPath =
+    request.path.substr(0, index + 1) + "code_bundle_reload_" + counter + ".js";
+  const newUrl = request.scheme + "://" + request.host + newPath;
 
   response.setStatusLine(request.httpVersion, 302, "Found");
   response.setHeader("Location", newUrl);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/toolbox.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/toolbox.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/framework/toolbox.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/framework/toolbox.js	2021-10-20 19:28:15.000000000 +0000
@@ -691,7 +691,8 @@
       // Attach to a new top-level target.
       // For now, register these event listeners only on the top level target
       targetFront.on("frame-update", this._updateFrames);
-      targetFront.on("inspect-object", this._onInspectObject);
+      const consoleFront = await targetFront.getFront("console");
+      consoleFront.on("inspectObject", this._onInspectObject);
     }
 
     // Walker listeners allow to monitor DOM Mutation breakpoint updates.
@@ -718,8 +719,9 @@
 
   _onTargetDestroyed({ targetFront }) {
     if (targetFront.isTopLevel) {
-      this.target.off("inspect-object", this._onInspectObject);
-      this.target.off("frame-update", this._updateFrames);
+      const consoleFront = targetFront.getCachedFront("console");
+      consoleFront.off("inspectObject", this._onInspectObject);
+      targetFront.off("frame-update", this._updateFrames);
     } else if (this.selection) {
       this.selection.onTargetDestroyed(targetFront);
     }
@@ -3611,10 +3613,6 @@
     }
   },
 
-  _onInspectObject: function(packet) {
-    this.inspectObjectActor(packet.objectActor, packet.inspectFromAnnotation);
-  },
-
   _onToolSelected: function() {
     this._refreshHostTitle();
 
@@ -3626,6 +3624,13 @@
     this.component.setToolboxButtons(this.toolbarButtons);
   },
 
+  /**
+   * Listener for "inspectObject" event on console top level target actor.
+   */
+  _onInspectObject(packet) {
+    this.inspectObjectActor(packet.objectActor, packet.inspectFromAnnotation);
+  },
+
   inspectObjectActor: async function(objectActor, inspectFromAnnotation) {
     const objectGrip = objectActor?.getGrip
       ? objectActor.getGrip()
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/fronts/descriptors/worker.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/fronts/descriptors/worker.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/fronts/descriptors/worker.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/fronts/descriptors/worker.js	2021-10-20 19:28:15.000000000 +0000
@@ -95,8 +95,7 @@
 
       const workerTargetForm = await super.getTarget();
 
-      // Set the console actor ID on the form to expose it to Target.attachConsole
-      // Set the ThreadActor on the target form so it is accessible by getFront
+      // Set the console and thread actor IDs on the form so it is accessible by TargetMixin.getFront
       this.targetForm.consoleActor = workerTargetForm.consoleActor;
       this.targetForm.threadActor = workerTargetForm.threadActor;
 
@@ -104,7 +103,6 @@
         return this;
       }
 
-      await this.attachConsole();
       return this;
     })();
     return this._attach;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/fronts/targets/content-process.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/fronts/targets/content-process.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/fronts/targets/content-process.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/fronts/targets/content-process.js	2021-10-20 19:28:16.000000000 +0000
@@ -44,11 +44,6 @@
   }
 
   attach() {
-    // All target actors have a console actor to attach.
-    // All but xpcshell test actors... which is using a ContentProcessTargetActor
-    if (this.targetForm.consoleActor) {
-      return this.attachConsole();
-    }
     return Promise.resolve();
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/fronts/targets/target-mixin.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/fronts/targets/target-mixin.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/fronts/targets/target-mixin.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/fronts/targets/target-mixin.js	2021-10-20 19:28:15.000000000 +0000
@@ -468,25 +468,6 @@
       }
     }
 
-    // Attach the console actor
-    async attachConsole() {
-      const consoleFront = await this.getFront("console");
-
-      if (this.isDestroyedOrBeingDestroyed()) {
-        return;
-      }
-
-      // Calling startListeners will populate the traits as it's the first request we
-      // make to the front.
-      await consoleFront.startListeners([]);
-
-      this._onInspectObject = packet => this.emit("inspect-object", packet);
-      this.removeOnInspectObjectListener = consoleFront.on(
-        "inspectObject",
-        this._onInspectObject
-      );
-    }
-
     /**
      * This method attaches the target and then attaches its related thread, sending it
      * the options it needs (e.g. breakpoints, pause on exception setting, …).
@@ -649,12 +630,6 @@
       }
       this.fronts.clear();
 
-      // Remove listeners set in attachConsole
-      if (this.removeOnInspectObjectListener) {
-        this.removeOnInspectObjectListener();
-        this.removeOnInspectObjectListener = null;
-      }
-
       this.threadFront = null;
       this._offResourceEvent = null;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/fronts/targets/window-global.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/fronts/targets/window-global.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/fronts/targets/window-global.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/fronts/targets/window-global.js	2021-10-20 19:28:15.000000000 +0000
@@ -125,12 +125,6 @@
       // @backward-compat { version 93 } Remove this. All the traits are on form and can be accessed
       // using getTraits.
       this.traits = response.traits || {};
-
-      // xpcshell tests from devtools/server/tests/xpcshell/ are implementing
-      // fake WindowGlobalTargetActor which do not expose any console actor.
-      if (this.targetForm.consoleActor) {
-        await this.attachConsole();
-      }
     })();
     return this._attach;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/fronts/webconsole.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/fronts/webconsole.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/fronts/webconsole.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/fronts/webconsole.js	2021-10-20 19:28:15.000000000 +0000
@@ -24,7 +24,6 @@
   constructor(client, targetFront, parentFront) {
     super(client, targetFront, parentFront);
     this._client = client;
-    this.traits = {};
     this.events = [];
 
     // Attribute name from which to retrieve the actorID out of the target actor's form
@@ -306,7 +305,6 @@
   async startListeners(listeners) {
     const response = await super.startListeners(listeners);
     this.hasNativeConsoleAPI = response.nativeConsoleAPI;
-    this.traits = response.traits;
     return response;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/jsonview/test/chunked_json.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/jsonview/test/chunked_json.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/jsonview/test/chunked_json.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/jsonview/test/chunked_json.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -7,12 +7,14 @@
 }
 function getResponse() {
   let response;
-  getObjectState(key, v => { response = v });
+  getObjectState(key, v => {
+    response = v;
+  });
   return response;
 }
 
 function handleRequest(request, response) {
-  let {queryString} = request;
+  const { queryString } = request;
   if (!queryString) {
     response.processAsync();
     setResponse(response);
@@ -21,7 +23,7 @@
     response.write(" ");
     return;
   }
-  let [command, value] = queryString.split('=');
+  const [command, value] = queryString.split("=");
   switch (command) {
     case "write":
       getResponse().write(value);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/src/connector/index.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/src/connector/index.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/src/connector/index.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/src/connector/index.js	2021-10-20 19:28:16.000000000 +0000
@@ -432,9 +432,6 @@
     if (this.hasResourceCommandSupport && this.networkFront) {
       return this.networkFront.getBlockedUrls();
     }
-    if (!this.webConsoleFront.traits.blockedUrls) {
-      return [];
-    }
     return this.webConsoleFront.getBlockedUrls();
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/src/har/test/browser_net_har_copy_all_as_har.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/src/har/test/browser_net_har_copy_all_as_har.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/src/har/test/browser_net_har_copy_all_as_har.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/src/har/test/browser_net_har_copy_all_as_har.js	2021-10-20 19:28:15.000000000 +0000
@@ -7,6 +7,11 @@
  * Basic tests for exporting Network panel content into HAR format.
  */
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // Otherwise in https we receive the wrong headers length (12 instead of 9)
+  // and the wrong statusText (Connected instead of OK).
+  await pushPref("dom.security.https_first", false);
+
   // Disable tcp fast open, because it is setting a response header indicator
   // (bug 1352274). TCP Fast Open is not present on all platforms therefore the
   // number of response headers will vary depending on the platform.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/src/har/test/browser_net_har_import.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/src/har/test/browser_net_har_import.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/src/har/test/browser_net_har_import.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/src/har/test/browser_net_har_import.js	2021-10-20 19:28:15.000000000 +0000
@@ -7,6 +7,7 @@
  * Tests for importing HAR data.
  */
 add_task(async () => {
+  // Using https-first for this test is blocked on Bug 1733420.
   await pushPref("dom.security.https_first", false);
 
   const { tab, monitor } = await initNetMonitor(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/src/har/test/sjs_cache-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/src/har/test/sjs_cache-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/src/har/test/sjs_cache-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/src/har/test/sjs_cache-test-server.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -3,7 +3,10 @@
 
 function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 304, "Not Modified");
-  response.setHeader("Cache-Control", "no-transform,public,max-age=300,s-maxage=900");
+  response.setHeader(
+    "Cache-Control",
+    "no-transform,public,max-age=300,s-maxage=900"
+  );
   response.setHeader("Expires", "Thu, 01 Dec 2100 20:00:00 GMT");
   response.setHeader("Content-Type", "text/plain; charset=utf-8", false);
   response.write("Hello from cache!");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_block.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_block.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_block.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_block.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,7 +8,7 @@
  */
 
 add_task(async function() {
-  const { monitor, tab } = await initNetMonitor(SIMPLE_URL, {
+  const { monitor, tab } = await initNetMonitor(HTTPS_SIMPLE_URL, {
     requestCount: 1,
   });
   info("Starting test... ");
@@ -22,7 +22,7 @@
 
   // Reload to have one request in the list
   let waitForEvents = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await waitForEvents;
 
   // Capture normal request
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_block-pattern.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_block-pattern.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_block-pattern.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_block-pattern.js	2021-10-20 19:28:15.000000000 +0000
@@ -12,7 +12,7 @@
 add_task(async function() {
   await pushPref("devtools.netmonitor.features.requestBlocking", true);
 
-  const { tab, monitor } = await initNetMonitor(CUSTOM_GET_URL, {
+  const { tab, monitor } = await initNetMonitor(HTTPS_CUSTOM_GET_URL, {
     requestCount: 1,
   });
   info("Starting test... ");
@@ -50,10 +50,10 @@
   store.dispatch(Actions.toggleRequestBlockingPanel());
 
   // Execute two XHRs (the same URL) and wait till they're finished
-  const TEST_URL_1 = SEARCH_SJS + "?value=test1";
-  const TEST_URL_2 = SEARCH_SJS + "?value=test2";
-  const TEST_URL_3 = SEARCH_SJS + "test/something/test3";
-  const TEST_URL_4 = SEARCH_SJS + "test/something/test4";
+  const TEST_URL_1 = HTTPS_SEARCH_SJS + "?value=test1";
+  const TEST_URL_2 = HTTPS_SEARCH_SJS + "?value=test2";
+  const TEST_URL_3 = HTTPS_SEARCH_SJS + "test/something/test3";
+  const TEST_URL_4 = HTTPS_SEARCH_SJS + "test/something/test4";
 
   let wait = waitForNetworkEvents(monitor, 4);
   await ContentTask.spawn(tab.linkedBrowser, TEST_URL_1, async function(url) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cached-status.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cached-status.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cached-status.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cached-status.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   // Disable rcwn to make cache behavior deterministic.
   await pushPref("network.http.rcwn.enabled", false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cause_redirect.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cause_redirect.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cause_redirect.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cause_redirect.js	2021-10-20 19:28:16.000000000 +0000
@@ -9,6 +9,9 @@
  */
 
 add_task(async function() {
+  // This test explicitly checks http->https redirects and should not force https.
+  await pushPref("dom.security.https_first", false);
+
   const EXPECTED_REQUESTS = [
     // Request to HTTP URL, redirects to HTTPS
     { status: 302 },
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cause_source_map.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cause_source_map.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cause_source_map.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cause_source_map.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,7 +8,7 @@
  */
 
 const CAUSE_FILE_NAME = "html_maps-test-page.html";
-const CAUSE_URL = EXAMPLE_URL + CAUSE_FILE_NAME;
+const CAUSE_URL = HTTPS_EXAMPLE_URL + CAUSE_FILE_NAME;
 
 const N_EXPECTED_REQUESTS = 4;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-01.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-01.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-01.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-01.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,7 +8,9 @@
  */
 
 add_task(async function() {
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
 
   info("Starting test... ");
 
@@ -16,7 +18,7 @@
   const { Chart } = windowRequire("devtools/client/shared/widgets/Chart");
 
   const wait = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await wait;
 
   const pie = Chart.Pie(document, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-02.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-02.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-02.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-02.js	2021-10-20 19:28:15.000000000 +0000
@@ -11,14 +11,16 @@
 add_task(async function() {
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, windowRequire } = monitor.panelWin;
   const { Chart } = windowRequire("devtools/client/shared/widgets/Chart");
 
   const wait = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await wait;
 
   const pie = Chart.Pie(document, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-03.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-03.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-03.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-03.js	2021-10-20 19:28:15.000000000 +0000
@@ -10,14 +10,16 @@
 add_task(async function() {
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, windowRequire } = monitor.panelWin;
   const { Chart } = windowRequire("devtools/client/shared/widgets/Chart");
 
   const wait = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await wait;
 
   const table = Chart.Table(document, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-04.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-04.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-04.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-04.js	2021-10-20 19:28:16.000000000 +0000
@@ -11,14 +11,16 @@
 add_task(async function() {
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, windowRequire } = monitor.panelWin;
   const { Chart } = windowRequire("devtools/client/shared/widgets/Chart");
 
   const wait = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await wait;
 
   const table = Chart.Table(document, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-05.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-05.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-05.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-05.js	2021-10-20 19:28:15.000000000 +0000
@@ -10,14 +10,16 @@
 add_task(async function() {
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, windowRequire } = monitor.panelWin;
   const { Chart } = windowRequire("devtools/client/shared/widgets/Chart");
 
   const wait = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await wait;
 
   const chart = Chart.PieTable(document, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-06.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-06.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-06.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-06.js	2021-10-20 19:28:16.000000000 +0000
@@ -10,14 +10,16 @@
 add_task(async function() {
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, windowRequire } = monitor.panelWin;
   const { Chart } = windowRequire("devtools/client/shared/widgets/Chart");
 
   const wait = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await wait;
 
   const pie = Chart.Pie(document, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-07.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-07.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_charts-07.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_charts-07.js	2021-10-20 19:28:16.000000000 +0000
@@ -10,14 +10,16 @@
 add_task(async function() {
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, windowRequire } = monitor.panelWin;
   const { Chart } = windowRequire("devtools/client/shared/widgets/Chart");
 
   const wait = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await wait;
 
   const table = Chart.Table(document, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_column_slow-request-indicator.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_column_slow-request-indicator.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_column_slow-request-indicator.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_column_slow-request-indicator.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,11 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We always get a waiting time of 0ms for requests coming from httpd.js in
+  // https.
+  await pushPref("dom.security.https_first", false);
+
   // The script sjs_slow-script-server.sjs takes about 2s which is
   // definately above the slow threshold set here.
   const SLOW_THRESHOLD = 450;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_columns_showhide.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_columns_showhide.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_columns_showhide.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_columns_showhide.js	2021-10-20 19:28:16.000000000 +0000
@@ -7,7 +7,9 @@
  * Test showing/hiding columns.
  */
 add_task(async function() {
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, store, connector, windowRequire } = monitor.panelWin;
@@ -17,7 +19,7 @@
   );
 
   const wait = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await wait;
 
   const item = getSortedRequests(store.getState())[0];
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_columns_time.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_columns_time.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_columns_time.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_columns_time.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,6 +8,11 @@
  * header is visible only if there are requests in the list.
  */
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We expect a > 0 latency, but we always get -1 for HTTPS requests using
+  // httpd.js.
+  await pushPref("dom.security.https_first", false);
+
   const { monitor } = await initNetMonitor(SIMPLE_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_content-type.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_content-type.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_content-type.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_content-type.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { tab, monitor } = await initNetMonitor(
     CONTENT_TYPE_WITHOUT_CACHE_URL,
     { requestCount: 1 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_copy_as_curl.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_copy_as_curl.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_copy_as_curl.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_copy_as_curl.js	2021-10-20 19:28:16.000000000 +0000
@@ -10,7 +10,9 @@
 const POST_PAYLOAD = "Plaintext value as a payload";
 
 add_task(async function() {
-  const { tab, monitor } = await initNetMonitor(CURL_URL, { requestCount: 1 });
+  const { tab, monitor } = await initNetMonitor(HTTPS_CURL_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   // Different quote chars are used for Windows and POSIX
@@ -53,8 +55,8 @@
   }
 
   // Construct the expected command
-  const SIMPLE_BASE = ["curl " + quote(SIMPLE_SJS)];
-  const SLOW_BASE = ["curl " + quote(SLOW_SJS)];
+  const SIMPLE_BASE = ["curl " + quote(HTTPS_SIMPLE_SJS)];
+  const SLOW_BASE = ["curl " + quote(HTTPS_SLOW_SJS)];
   const BASE_RESULT = [
     "--compressed",
     header("User-Agent: " + navigator.userAgent),
@@ -63,10 +65,13 @@
     header("X-Custom-Header-1: Custom value"),
     header("X-Custom-Header-2: 8.8.8.8"),
     header("X-Custom-Header-3: Mon, 3 Mar 2014 11:11:11 GMT"),
-    header("Referer: " + CURL_URL),
+    header("Referer: " + HTTPS_CURL_URL),
     header("Connection: keep-alive"),
     header("Pragma: no-cache"),
     header("Cache-Control: no-cache"),
+    header("Sec-Fetch-Dest: empty"),
+    header("Sec-Fetch-Mode: cors"),
+    header("Sec-Fetch-Site: same-origin"),
   ];
 
   const COOKIE_PARTIAL_RESULT = [header("Cookie: bob=true; tom=cool")];
@@ -77,7 +82,7 @@
     "--data-raw " + quote(POST_PAYLOAD),
     header("Content-Type: text/plain;charset=UTF-8"),
   ];
-  const ORIGIN_RESULT = [header("Origin: http://example.com")];
+  const ORIGIN_RESULT = [header("Origin: https://example.com")];
 
   const HEAD_PARTIAL_RESULT = ["-I"];
 
@@ -123,7 +128,9 @@
 
   // Unfinished request (bug#1378464, bug#1420513)
   const waitSlow = waitForNetworkEvents(monitor, 0);
-  await SpecialPowers.spawn(tab.linkedBrowser, [SLOW_SJS], async function(url) {
+  await SpecialPowers.spawn(tab.linkedBrowser, [HTTPS_SLOW_SJS], async function(
+    url
+  ) {
     content.wrappedJSObject.performRequest(url, "GET", null);
   });
   await waitSlow;
@@ -164,7 +171,7 @@
       tab.linkedBrowser,
       [
         {
-          url: SIMPLE_SJS,
+          url: HTTPS_SIMPLE_SJS,
           method_: method,
           payload_: payload,
         },
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_copy_as_fetch.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_copy_as_fetch.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_copy_as_fetch.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_copy_as_fetch.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,12 +8,14 @@
  */
 
 add_task(async function() {
-  const { tab, monitor } = await initNetMonitor(CURL_URL, { requestCount: 1 });
+  const { tab, monitor } = await initNetMonitor(HTTPS_CURL_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   // GET request, no cookies (first request)
   await performRequest("GET");
-  await testClipboardContent(`await fetch("http://example.com/browser/devtools/client/netmonitor/test/sjs_simple-test-server.sjs", {
+  await testClipboardContent(`await fetch("https://example.com/browser/devtools/client/netmonitor/test/sjs_simple-test-server.sjs", {
     "credentials": "omit",
     "headers": {
         "User-Agent": "${navigator.userAgent}",
@@ -22,10 +24,13 @@
         "X-Custom-Header-1": "Custom value",
         "X-Custom-Header-2": "8.8.8.8",
         "X-Custom-Header-3": "Mon, 3 Mar 2014 11:11:11 GMT",
+        "Sec-Fetch-Dest": "empty",
+        "Sec-Fetch-Mode": "cors",
+        "Sec-Fetch-Site": "same-origin",
         "Pragma": "no-cache",
         "Cache-Control": "no-cache"
     },
-    "referrer": "http://example.com/browser/devtools/client/netmonitor/test/html_copy-as-curl.html",
+    "referrer": "https://example.com/browser/devtools/client/netmonitor/test/html_copy-as-curl.html",
     "method": "GET",
     "mode": "cors"
 });`);
@@ -38,7 +43,7 @@
       tab.linkedBrowser,
       [
         {
-          url: SIMPLE_SJS,
+          url: HTTPS_SIMPLE_SJS,
           method_: method,
           payload_: payload,
         },
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_copy_headers.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_copy_headers.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_copy_headers.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_copy_headers.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { monitor } = await initNetMonitor(SIMPLE_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_copy_svg_image_as_data_uri.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_copy_svg_image_as_data_uri.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_copy_svg_image_as_data_uri.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_copy_svg_image_as_data_uri.js	2021-10-20 19:28:15.000000000 +0000
@@ -7,10 +7,12 @@
  * Tests if copying an image as data uri works.
  */
 
-const SVG_URL = EXAMPLE_URL + "dropmarker.svg";
+const SVG_URL = HTTPS_EXAMPLE_URL + "dropmarker.svg";
 
 add_task(async function() {
-  const { tab, monitor } = await initNetMonitor(CURL_URL, { requestCount: 1 });
+  const { tab, monitor } = await initNetMonitor(HTTPS_CURL_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document } = monitor.panelWin;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cors_requests.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cors_requests.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cors_requests.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cors_requests.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,7 +8,9 @@
  */
 
 add_task(async function() {
-  const { tab, monitor } = await initNetMonitor(CORS_URL, { requestCount: 1 });
+  const { tab, monitor } = await initNetMonitor(HTTPS_CORS_URL, {
+    requestCount: 1,
+  });
 
   const { document, store, windowRequire } = monitor.panelWin;
   const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
@@ -21,7 +23,7 @@
   const wait = waitForNetworkEvents(monitor, 2);
 
   info("Performing a CORS request");
-  const requestUrl = "http://test1.example.com" + CORS_SJS_PATH;
+  const requestUrl = "https://test1.example.com" + CORS_SJS_PATH;
   await SpecialPowers.spawn(tab.linkedBrowser, [requestUrl], async function(
     url
   ) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_curl-utils.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_curl-utils.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_curl-utils.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_curl-utils.js	2021-10-20 19:28:15.000000000 +0000
@@ -10,7 +10,7 @@
 const { Curl, CurlUtils } = require("devtools/client/shared/curl");
 
 add_task(async function() {
-  const { tab, monitor } = await initNetMonitor(CURL_UTILS_URL, {
+  const { tab, monitor } = await initNetMonitor(HTTPS_CURL_UTILS_URL, {
     requestCount: 1,
   });
   info("Starting test... ");
@@ -25,11 +25,13 @@
   store.dispatch(Actions.batchEnable(false));
 
   const wait = waitForNetworkEvents(monitor, 6);
-  await SpecialPowers.spawn(tab.linkedBrowser, [SIMPLE_SJS], async function(
-    url
-  ) {
-    content.wrappedJSObject.performRequests(url);
-  });
+  await SpecialPowers.spawn(
+    tab.linkedBrowser,
+    [HTTPS_SIMPLE_SJS],
+    async function(url) {
+      content.wrappedJSObject.performRequests(url);
+    }
+  );
   await wait;
 
   const requests = {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cyrillic-01.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cyrillic-01.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cyrillic-01.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cyrillic-01.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { tab, monitor } = await initNetMonitor(CYRILLIC_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cyrillic-02.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cyrillic-02.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_cyrillic-02.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_cyrillic-02.js	2021-10-20 19:28:16.000000000 +0000
@@ -9,6 +9,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { monitor } = await initNetMonitor(CYRILLIC_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_details_copy.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_details_copy.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_details_copy.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_details_copy.js	2021-10-20 19:28:15.000000000 +0000
@@ -6,6 +6,9 @@
  * Test that the URL Preview can be copied
  */
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { monitor } = await initNetMonitor(SIMPLE_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_edit_resend_cancel.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_edit_resend_cancel.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_edit_resend_cancel.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_edit_resend_cancel.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,7 +8,9 @@
  */
 
 add_task(async function() {
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, store, windowRequire } = monitor.panelWin;
@@ -20,7 +22,7 @@
 
   // Reload to have one request in the list
   const waitForEvents = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await waitForEvents;
 
   // Context Menu > "Edit & Resend"
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_edit_resend_caret.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_edit_resend_caret.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_edit_resend_caret.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_edit_resend_caret.js	2021-10-20 19:28:16.000000000 +0000
@@ -10,7 +10,9 @@
  */
 
 add_task(async function() {
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, store, windowRequire } = monitor.panelWin;
@@ -19,7 +21,7 @@
 
   // Reload to have one request in the list.
   const waitForEvents = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await waitForEvents;
 
   // Open context menu and execute "Edit & Resend".
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_filter-01.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_filter-01.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_filter-01.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_filter-01.js	2021-10-20 19:28:16.000000000 +0000
@@ -207,6 +207,11 @@
 ];
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // In the meantime, we cannot expect correct status text from https requests
+  // to httpd.js.
+  await pushPref("dom.security.https_first", false);
+
   const { monitor } = await initNetMonitor(FILTERING_URL, { requestCount: 1 });
   const { document, store, windowRequire } = monitor.panelWin;
   const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_filter-02.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_filter-02.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_filter-02.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_filter-02.js	2021-10-20 19:28:15.000000000 +0000
@@ -132,6 +132,11 @@
 ];
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // In the meantime, we cannot expect correct status text from https requests
+  // to httpd.js.
+  await pushPref("dom.security.https_first", false);
+
   const { monitor } = await initNetMonitor(FILTERING_URL, { requestCount: 1 });
   info("Starting test... ");
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_filter-autocomplete.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_filter-autocomplete.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_filter-autocomplete.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_filter-autocomplete.js	2021-10-20 19:28:16.000000000 +0000
@@ -38,6 +38,10 @@
 }
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status code 304 with HTTPS requests to httpd.js
+  await pushPref("dom.security.https_first", false);
+
   const { monitor } = await initNetMonitor(FILTERING_URL, { requestCount: 1 });
   const { document, store, windowRequire } = monitor.panelWin;
   const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_filter-flags.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_filter-flags.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_filter-flags.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_filter-flags.js	2021-10-20 19:28:15.000000000 +0000
@@ -142,6 +142,10 @@
 ];
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status code 304 with HTTPS requests to httpd.js
+  await pushPref("dom.security.https_first", false);
+
   const { monitor } = await initNetMonitor(FILTERING_URL, { requestCount: 1 });
   const { document, store, windowRequire } = monitor.panelWin;
   const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_filter-sts-search.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_filter-sts-search.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_filter-sts-search.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_filter-sts-search.js	2021-10-20 19:28:16.000000000 +0000
@@ -13,6 +13,10 @@
 ];
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status code 304 with HTTPS requests to httpd.js
+  await pushPref("dom.security.https_first", false);
+
   const { monitor } = await initNetMonitor(FILTERING_URL, { requestCount: 1 });
   const { document, store, windowRequire } = monitor.panelWin;
   const Actions = windowRequire("devtools/client/netmonitor/src/actions/index");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_fission_switch_target.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_fission_switch_target.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_fission_switch_target.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_fission_switch_target.js	2021-10-20 19:28:16.000000000 +0000
@@ -5,9 +5,9 @@
 
 // Test switching for the top-level target.
 
-const EXAMPLE_COM_URL = "http://example.com/document-builder.sjs?html=testcom";
-const EXAMPLE_NET_URL = "http://example.net/document-builder.sjs?html=testnet";
-const REQUEST_URL = SEARCH_SJS + "?value=test";
+const EXAMPLE_COM_URL = "https://example.com/document-builder.sjs?html=testcom";
+const EXAMPLE_NET_URL = "https://example.net/document-builder.sjs?html=testnet";
+const REQUEST_URL = HTTPS_SEARCH_SJS + "?value=test";
 const PARENT_PROCESS_URL = "about:blank";
 
 add_task(async function() {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_headers_sorted.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_headers_sorted.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_headers_sorted.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_headers_sorted.js	2021-10-20 19:28:15.000000000 +0000
@@ -12,7 +12,7 @@
  * order and not sorted.
  */
 add_task(async function() {
-  const { monitor } = await initNetMonitor(SIMPLE_SJS, {
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_SJS, {
     requestCount: 1,
   });
   info("Starting test... ");
@@ -71,6 +71,9 @@
     "Cookie",
     "Host",
     "Pragma",
+    "Sec-Fetch-Dest",
+    "Sec-Fetch-Mode",
+    "Sec-Fetch-Site",
     "Upgrade-Insecure-Requests",
     "User-Agent",
   ];
@@ -138,6 +141,9 @@
     "Connection",
     "Cookie",
     "Upgrade-Insecure-Requests",
+    "Sec-Fetch-Dest",
+    "Sec-Fetch-Mode",
+    "Sec-Fetch-Site",
     "Pragma",
     "Cache-Control",
   ];
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_image_cache.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_image_cache.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_image_cache.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_image_cache.js	2021-10-20 19:28:15.000000000 +0000
@@ -40,7 +40,7 @@
   is(requests.length, 4, "There should be 4 requests");
 
   const requestData = {
-    uri: EXAMPLE_URL + "test-image.png",
+    uri: HTTPS_EXAMPLE_URL + "test-image.png",
     details: {
       status: 200,
       statusText: "OK (cached)",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_initiator.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_initiator.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_initiator.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_initiator.js	2021-10-20 19:28:16.000000000 +0000
@@ -10,7 +10,7 @@
  */
 
 const INITIATOR_FILE_NAME = "html_cause-test-page.html";
-const INITIATOR_URL = EXAMPLE_URL + INITIATOR_FILE_NAME;
+const INITIATOR_URL = HTTPS_EXAMPLE_URL + INITIATOR_FILE_NAME;
 
 const EXPECTED_REQUESTS = [
   {
@@ -22,42 +22,42 @@
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "stylesheet_request",
+    url: HTTPS_EXAMPLE_URL + "stylesheet_request",
     causeType: "stylesheet",
     causeUri: INITIATOR_URL,
     stack: false,
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "img_request",
+    url: HTTPS_EXAMPLE_URL + "img_request",
     causeType: "img",
     causeUri: INITIATOR_URL,
     stack: false,
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "img_srcset_request",
+    url: HTTPS_EXAMPLE_URL + "img_srcset_request",
     causeType: "imageset",
     causeUri: INITIATOR_URL,
     stack: false,
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "xhr_request",
+    url: HTTPS_EXAMPLE_URL + "xhr_request",
     causeType: "xhr",
     causeUri: INITIATOR_URL,
     stack: [{ fn: "performXhrRequestCallback", file: INITIATOR_URL, line: 32 }],
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "fetch_request",
+    url: HTTPS_EXAMPLE_URL + "fetch_request",
     causeType: "fetch",
     causeUri: INITIATOR_URL,
     stack: [{ fn: "performFetchRequest", file: INITIATOR_URL, line: 37 }],
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "promise_fetch_request",
+    url: HTTPS_EXAMPLE_URL + "promise_fetch_request",
     causeType: "fetch",
     causeUri: INITIATOR_URL,
     stack: [
@@ -76,7 +76,7 @@
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "timeout_fetch_request",
+    url: HTTPS_EXAMPLE_URL + "timeout_fetch_request",
     causeType: "fetch",
     causeUri: INITIATOR_URL,
     stack: [
@@ -95,7 +95,7 @@
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "favicon_request",
+    url: HTTPS_EXAMPLE_URL + "favicon_request",
     causeType: "img",
     causeUri: INITIATOR_URL,
     // the favicon request is triggered in FaviconLoader.jsm module, it should
@@ -111,21 +111,21 @@
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "lazy_img_request",
+    url: HTTPS_EXAMPLE_URL + "lazy_img_request",
     causeType: "lazy-img",
     causeUri: INITIATOR_URL,
     stack: false,
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "lazy_img_srcset_request",
+    url: HTTPS_EXAMPLE_URL + "lazy_img_srcset_request",
     causeType: "lazy-imageset",
     causeUri: INITIATOR_URL,
     stack: false,
   },
   {
     method: "POST",
-    url: EXAMPLE_URL + "beacon_request",
+    url: HTTPS_EXAMPLE_URL + "beacon_request",
     causeType: "beacon",
     causeUri: INITIATOR_URL,
     stack: [{ fn: "performBeaconRequest", file: INITIATOR_URL, line: 82 }],
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_json_custom_mime.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_json_custom_mime.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_json_custom_mime.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_json_custom_mime.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,6 +8,11 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status text "OK" with HTTPS requests to httpd.js, instead
+  // we get "Connected"
+  await pushPref("dom.security.https_first", false);
+
   const { tab, monitor } = await initNetMonitor(JSON_CUSTOM_MIME_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_json-long.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_json-long.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_json-long.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_json-long.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,6 +8,11 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status text "OK" with HTTPS requests to httpd.js, instead
+  // we get "Connected"
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
   const { tab, monitor } = await initNetMonitor(JSON_LONG_URL, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_json-malformed.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_json-malformed.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_json-malformed.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_json-malformed.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,11 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status text "OK" with HTTPS requests to httpd.js, instead
+  // we get "Connected"
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
   const { tab, monitor } = await initNetMonitor(JSON_MALFORMED_URL, {
     requestCount: 1,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_jsonp.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_jsonp.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_jsonp.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_jsonp.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,6 +8,11 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status text "OK" with HTTPS requests to httpd.js, instead
+  // we get "Connected"
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
   const { tab, monitor } = await initNetMonitor(JSONP_URL, { requestCount: 1 });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_json_text_mime.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_json_text_mime.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_json_text_mime.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_json_text_mime.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,11 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status text "OK" with HTTPS requests to httpd.js, instead
+  // we get "Connected"
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
   const { tab, monitor } = await initNetMonitor(JSON_TEXT_MIME_URL, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_large-response.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_large-response.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_large-response.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_large-response.js	2021-10-20 19:28:16.000000000 +0000
@@ -10,6 +10,11 @@
 const HTML_LONG_URL = CONTENT_TYPE_SJS + "?fmt=html-long";
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status text "OK" with HTTPS requests to httpd.js, instead
+  // we get "Connected"
+  await pushPref("dom.security.https_first", false);
+
   const { tab, monitor } = await initNetMonitor(CUSTOM_GET_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_post-data-01.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_post-data-01.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_post-data-01.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_post-data-01.js	2021-10-20 19:28:15.000000000 +0000
@@ -7,6 +7,11 @@
  * Tests if the POST requests display the correct information in the UI.
  */
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status text "Och Aye" with HTTPS requests to httpd.js, instead
+  // we get "Connected"
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
   // Set a higher panel height in order to get full CodeMirror content
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_req-resp-bodies.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_req-resp-bodies.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_req-resp-bodies.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_req-resp-bodies.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,11 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status text "OK" with HTTPS requests to httpd.js, instead
+  // we get "Connected"
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
   const { tab, monitor } = await initNetMonitor(JSON_LONG_URL, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_resend_cors.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_resend_cors.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_resend_cors.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_resend_cors.js	2021-10-20 19:28:15.000000000 +0000
@@ -9,7 +9,9 @@
  */
 
 add_task(async function() {
-  const { tab, monitor } = await initNetMonitor(CORS_URL, { requestCount: 1 });
+  const { tab, monitor } = await initNetMonitor(HTTPS_CORS_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { store, windowRequire, connector } = monitor.panelWin;
@@ -20,7 +22,7 @@
 
   store.dispatch(Actions.batchEnable(false));
 
-  const requestUrl = "http://test1.example.com" + CORS_SJS_PATH;
+  const requestUrl = "https://test1.example.com" + CORS_SJS_PATH;
 
   info("Waiting for OPTIONS, then POST");
   const wait = waitForNetworkEvents(monitor, 2);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_resend_headers.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_resend_headers.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_resend_headers.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_resend_headers.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,7 +8,9 @@
  */
 
 add_task(async function() {
-  const { monitor } = await initNetMonitor(SIMPLE_SJS, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_SJS, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { store, windowRequire, connector } = monitor.panelWin;
@@ -20,7 +22,7 @@
 
   store.dispatch(Actions.batchEnable(false));
 
-  const requestUrl = SIMPLE_SJS;
+  const requestUrl = HTTPS_SIMPLE_SJS;
   const requestHeaders = [
     { name: "Host", value: "fakehost.example.com" },
     { name: "User-Agent", value: "Testzilla" },
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_resend_hidden_headers.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_resend_hidden_headers.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_resend_hidden_headers.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_resend_hidden_headers.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,7 +8,9 @@
  */
 
 add_task(async function() {
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { store, windowRequire, connector } = monitor.panelWin;
@@ -21,7 +23,7 @@
 
   store.dispatch(Actions.batchEnable(false));
 
-  const requestUrl = SIMPLE_SJS;
+  const requestUrl = HTTPS_SIMPLE_SJS;
   const requestHeaders = [
     { name: "Accept", value: "application/vnd.example+json" },
   ];
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_response_CORS_blocked.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_response_CORS_blocked.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_response_CORS_blocked.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_response_CORS_blocked.js	2021-10-20 19:28:15.000000000 +0000
@@ -11,7 +11,7 @@
 add_task(async function testCORSNotificationPresent() {
   info("Test that CORS notification is present");
 
-  const { tab, monitor } = await initNetMonitor(CORS_URL, {
+  const { tab, monitor } = await initNetMonitor(HTTPS_CORS_URL, {
     requestCount: 1,
   });
 
@@ -23,7 +23,7 @@
   const wait = waitForNetworkEvents(monitor, 1);
 
   info("making request to a origin that doesn't allow cross origin");
-  const requestUrl = EXAMPLE_ORG_URL + "sjs_simple-test-server.sjs";
+  const requestUrl = HTTPS_EXAMPLE_ORG_URL + "sjs_simple-test-server.sjs";
   await SpecialPowers.spawn(tab.linkedBrowser, [requestUrl], async function(
     url
   ) {
@@ -79,7 +79,7 @@
   const wait = waitForNetworkEvents(monitor, 1);
 
   info("Making request to a origin that allows cross origin");
-  const requestUrl = "http://test1.example.com" + CORS_SJS_PATH;
+  const requestUrl = "https://test1.example.com" + CORS_SJS_PATH;
   await SpecialPowers.spawn(tab.linkedBrowser, [requestUrl], async function(
     url
   ) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_search-results.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_search-results.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_search-results.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_search-results.js	2021-10-20 19:28:15.000000000 +0000
@@ -11,7 +11,7 @@
 add_task(async function() {
   await pushPref("devtools.netmonitor.features.search", true);
 
-  const { tab, monitor } = await initNetMonitor(CUSTOM_GET_URL, {
+  const { tab, monitor } = await initNetMonitor(HTTPS_CUSTOM_GET_URL, {
     requestCount: 1,
   });
   info("Starting test... ");
@@ -24,7 +24,10 @@
 
   const SEARCH_STRING = "test";
   // Execute two XHRs and wait until they are finished.
-  const URLS = [SEARCH_SJS + "?value=test1", SEARCH_SJS + "?value=test2"];
+  const URLS = [
+    HTTPS_SEARCH_SJS + "?value=test1",
+    HTTPS_SEARCH_SJS + "?value=test2",
+  ];
 
   const wait = waitForNetworkEvents(monitor, 2);
   await SpecialPowers.spawn(tab.linkedBrowser, [URLS], makeRequests);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_security-redirect.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_security-redirect.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_security-redirect.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_security-redirect.js	2021-10-20 19:28:16.000000000 +0000
@@ -9,6 +9,9 @@
  */
 
 add_task(async function() {
+  // This test explicitly asserts http -> https redirects.
+  await pushPref("dom.security.https_first", false);
+
   const { tab, monitor } = await initNetMonitor(CUSTOM_GET_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_security-state.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_security-state.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_security-state.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_security-state.js	2021-10-20 19:28:16.000000000 +0000
@@ -9,6 +9,9 @@
  */
 
 add_task(async function() {
+  // This test explicitly asserts some insecure domains.
+  await pushPref("dom.security.https_first", false);
+
   const EXPECTED_SECURITY_STATES = {
     "test1.example.com": "security-state-insecure",
     "example.com": "security-state-secure",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_security-tab-deselect.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_security-tab-deselect.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_security-tab-deselect.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_security-tab-deselect.js	2021-10-20 19:28:15.000000000 +0000
@@ -9,6 +9,10 @@
  */
 
 add_task(async function() {
+  // This test needs to trigger http and https requests.
+  // Disable https-first to avoid blocking the HTTP request due to mixed content.
+  await pushPref("dom.security.https_first", false);
+
   const { tab, monitor } = await initNetMonitor(CUSTOM_GET_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_security-tab-visibility.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_security-tab-visibility.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_security-tab-visibility.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_security-tab-visibility.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // This test explicitly asserts some insecure domains.
+  await pushPref("dom.security.https_first", false);
+
   const TEST_DATA = [
     {
       desc: "http request",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_send-beacon.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_send-beacon.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_send-beacon.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_send-beacon.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { tab, monitor } = await initNetMonitor(SEND_BEACON_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_simple-request-details.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_simple-request-details.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_simple-request-details.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_simple-request-details.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
   const { monitor } = await initNetMonitor(SIMPLE_SJS, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_sort-01.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_sort-01.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_sort-01.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_sort-01.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
   const { monitor } = await initNetMonitor(SORTING_URL, { requestCount: 1 });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_sort-02.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_sort-02.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_sort-02.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_sort-02.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
   const { monitor } = await initNetMonitor(SORTING_URL, { requestCount: 1 });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_sort-reset.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_sort-reset.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_sort-reset.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_sort-reset.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
   const { monitor } = await initNetMonitor(SORTING_URL, { requestCount: 1 });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_stacktraces-visibility.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_stacktraces-visibility.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_stacktraces-visibility.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_stacktraces-visibility.js	2021-10-20 19:28:16.000000000 +0000
@@ -9,6 +9,11 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // Behind the scenes this test relies on one of the requests creating a 404
+  // which is not possible when using HTTPS with httpd.js
+  await pushPref("dom.security.https_first", false);
+
   const URL = EXAMPLE_URL + "html_single-get-page.html";
   const REQUEST =
     "http://example.com/browser/devtools/client/netmonitor/test/request_0";
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_status-codes.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_status-codes.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_status-codes.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_status-codes.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,10 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status text with HTTPS requests to httpd.js, or 404...
+  await pushPref("dom.security.https_first", false);
+
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
   const { tab, monitor } = await initNetMonitor(STATUS_CODES_URL, {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_streaming-response.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_streaming-response.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_streaming-response.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_streaming-response.js	2021-10-20 19:28:16.000000000 +0000
@@ -9,6 +9,11 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  // We cannot assert status text "OK" with HTTPS requests to httpd.js, instead
+  // we get "Connected"
+  await pushPref("dom.security.https_first", false);
+
   const { tab, monitor } = await initNetMonitor(CUSTOM_GET_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_telemetry_edit_resend.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_telemetry_edit_resend.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_telemetry_edit_resend.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_telemetry_edit_resend.js	2021-10-20 19:28:16.000000000 +0000
@@ -9,7 +9,9 @@
  * Test the edit_resend telemetry event.
  */
 add_task(async function() {
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, store, windowRequire } = monitor.panelWin;
@@ -25,7 +27,7 @@
 
   // Reload to have one request in the list.
   const waitForEvents = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await waitForEvents;
 
   // Open context menu and execute "Edit & Resend".
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_telemetry_filters_changed.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_telemetry_filters_changed.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_telemetry_filters_changed.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_telemetry_filters_changed.js	2021-10-20 19:28:16.000000000 +0000
@@ -9,7 +9,9 @@
  * Test the filters_changed telemetry event.
  */
 add_task(async function() {
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, store, windowRequire } = monitor.panelWin;
@@ -29,7 +31,7 @@
 
   // Reload to have one request in the list.
   const wait = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await wait;
 
   info("Click on the 'HTML' filter");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_telemetry_sidepanel_changed.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_telemetry_sidepanel_changed.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_telemetry_sidepanel_changed.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_telemetry_sidepanel_changed.js	2021-10-20 19:28:15.000000000 +0000
@@ -9,7 +9,9 @@
  * Test the sidepanel_changed telemetry event.
  */
 add_task(async function() {
-  const { monitor } = await initNetMonitor(SIMPLE_URL, { requestCount: 1 });
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
+    requestCount: 1,
+  });
   info("Starting test... ");
 
   const { document, store, windowRequire } = monitor.panelWin;
@@ -25,7 +27,7 @@
 
   // Reload to have one request in the list.
   const waitForEvents = waitForNetworkEvents(monitor, 1);
-  await navigateTo(SIMPLE_URL);
+  await navigateTo(HTTPS_SIMPLE_URL);
   await waitForEvents;
 
   // Click on a request and wait till the default "Headers" side panel is opened.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_timeline_ticks.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_timeline_ticks.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_timeline_ticks.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_timeline_ticks.js	2021-10-20 19:28:16.000000000 +0000
@@ -10,7 +10,7 @@
 add_task(async function() {
   const { L10N } = require("devtools/client/netmonitor/src/utils/l10n");
 
-  const { monitor } = await initNetMonitor(SIMPLE_URL, {
+  const { monitor } = await initNetMonitor(HTTPS_SIMPLE_URL, {
     requestCount: 1,
   });
   info("Starting test... ");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_tracking-resources.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_tracking-resources.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_tracking-resources.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_tracking-resources.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,7 +8,7 @@
 );
 
 const TEST_URI =
-  "http://example.com/browser/devtools/client/" +
+  "https://example.com/browser/devtools/client/" +
   "netmonitor/test/html_tracking-protection.html";
 
 registerCleanupFunction(function() {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_truncate-post-data.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_truncate-post-data.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_truncate-post-data.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_truncate-post-data.js	2021-10-20 19:28:15.000000000 +0000
@@ -8,6 +8,9 @@
  * Verifies that requests with large post data are truncated and error is displayed.
  */
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { monitor, tab } = await initNetMonitor(POST_JSON_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_use_as_fetch.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_use_as_fetch.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_use_as_fetch.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_use_as_fetch.js	2021-10-20 19:28:16.000000000 +0000
@@ -8,6 +8,9 @@
  */
 
 add_task(async function() {
+  // Using https-first for this test is blocked on Bug 1733420.
+  await pushPref("dom.security.https_first", false);
+
   const { tab, monitor, toolbox } = await initNetMonitor(CURL_URL, {
     requestCount: 1,
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_websocket_stacks.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_websocket_stacks.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_websocket_stacks.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_websocket_stacks.js	2021-10-20 19:28:16.000000000 +0000
@@ -7,7 +7,7 @@
 // web sockets on the main or worker threads.
 
 const TOP_FILE_NAME = "html_websocket-test-page.html";
-const TOP_URL = EXAMPLE_URL + TOP_FILE_NAME;
+const TOP_URL = HTTPS_EXAMPLE_URL + TOP_FILE_NAME;
 const WORKER_FILE_NAME = "js_websocket-worker-test.js";
 
 const EXPECTED_REQUESTS = {
@@ -28,9 +28,9 @@
       { file: TOP_FILE_NAME, line: 3 },
     ],
   },
-  [EXAMPLE_URL + WORKER_FILE_NAME]: {
+  [HTTPS_EXAMPLE_URL + WORKER_FILE_NAME]: {
     method: "GET",
-    url: EXAMPLE_URL + WORKER_FILE_NAME,
+    url: HTTPS_EXAMPLE_URL + WORKER_FILE_NAME,
     causeType: "script",
     causeUri: TOP_URL,
     stack: [{ file: TOP_URL, line: 9 }],
@@ -41,7 +41,11 @@
     causeType: "websocket",
     causeUri: TOP_URL,
     stack: [
-      { fn: "openWorkerSocket", file: EXAMPLE_URL + WORKER_FILE_NAME, line: 5 },
+      {
+        fn: "openWorkerSocket",
+        file: HTTPS_EXAMPLE_URL + WORKER_FILE_NAME,
+        line: 5,
+      },
       { file: WORKER_FILE_NAME, line: 2 },
     ],
   },
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_worker_stacks.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_worker_stacks.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/browser_net_worker_stacks.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/browser_net_worker_stacks.js	2021-10-20 19:28:16.000000000 +0000
@@ -7,9 +7,9 @@
 // running worker threads.
 
 const TOP_FILE_NAME = "html_worker-test-page.html";
-const TOP_URL = EXAMPLE_URL + TOP_FILE_NAME;
+const TOP_URL = HTTPS_EXAMPLE_URL + TOP_FILE_NAME;
 const WORKER_FILE_NAME = "js_worker-test.js";
-const WORKER_URL = EXAMPLE_URL + WORKER_FILE_NAME;
+const WORKER_URL = HTTPS_EXAMPLE_URL + WORKER_FILE_NAME;
 
 const EXPECTED_REQUESTS = [
   {
@@ -32,7 +32,7 @@
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "missing1.js",
+    url: HTTPS_EXAMPLE_URL + "missing1.js",
     causeType: "script",
     causeUri: TOP_URL,
     stack: [
@@ -42,7 +42,7 @@
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "missing2.js",
+    url: HTTPS_EXAMPLE_URL + "missing2.js",
     causeType: "script",
     causeUri: TOP_URL,
     stack: [
@@ -52,7 +52,7 @@
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "js_worker-test2.js",
+    url: HTTPS_EXAMPLE_URL + "js_worker-test2.js",
     causeType: "script",
     causeUri: TOP_URL,
     stack: [
@@ -62,7 +62,7 @@
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "missing.json",
+    url: HTTPS_EXAMPLE_URL + "missing.json",
     causeType: "xhr",
     causeUri: TOP_URL,
     stack: [
@@ -72,7 +72,7 @@
   },
   {
     method: "GET",
-    url: EXAMPLE_URL + "missing.txt",
+    url: HTTPS_EXAMPLE_URL + "missing.txt",
     causeType: "fetch",
     causeUri: TOP_URL,
     stack: [
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/head.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/head.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/head.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/head.js	2021-10-20 19:28:15.000000000 +0000
@@ -81,6 +81,8 @@
 const CONTENT_TYPE_WITHOUT_CACHE_REQUESTS = 8;
 const CYRILLIC_URL = EXAMPLE_URL + "html_cyrillic-test-page.html";
 const STATUS_CODES_URL = EXAMPLE_URL + "html_status-codes-test-page.html";
+const HTTPS_STATUS_CODES_URL =
+  HTTPS_EXAMPLE_URL + "html_status-codes-test-page.html";
 const POST_DATA_URL = EXAMPLE_URL + "html_post-data-test-page.html";
 const POST_ARRAY_DATA_URL = EXAMPLE_URL + "html_post-array-data-test-page.html";
 const POST_JSON_URL = EXAMPLE_URL + "html_post-json-test-page.html";
@@ -101,6 +103,7 @@
 const FONTS_URL = EXAMPLE_URL + "html_fonts-test-page.html";
 const SORTING_URL = EXAMPLE_URL + "html_sorting-test-page.html";
 const FILTERING_URL = EXAMPLE_URL + "html_filter-test-page.html";
+const HTTPS_FILTERING_URL = HTTPS_EXAMPLE_URL + "html_filter-test-page.html";
 const INFINITE_GET_URL = EXAMPLE_URL + "html_infinite-get-page.html";
 const CUSTOM_GET_URL = EXAMPLE_URL + "html_custom-get-page.html";
 const HTTPS_CUSTOM_GET_URL = HTTPS_EXAMPLE_URL + "html_custom-get-page.html";
@@ -108,17 +111,20 @@
 const HTTPS_SINGLE_GET_URL = HTTPS_EXAMPLE_URL + "html_single-get-page.html";
 const STATISTICS_URL = EXAMPLE_URL + "html_statistics-test-page.html";
 const CURL_URL = EXAMPLE_URL + "html_copy-as-curl.html";
-const CURL_UTILS_URL = EXAMPLE_URL + "html_curl-utils.html";
+const HTTPS_CURL_URL = HTTPS_EXAMPLE_URL + "html_copy-as-curl.html";
+const HTTPS_CURL_UTILS_URL = HTTPS_EXAMPLE_URL + "html_curl-utils.html";
 const SEND_BEACON_URL = EXAMPLE_URL + "html_send-beacon.html";
 const CORS_URL = EXAMPLE_URL + "html_cors-test-page.html";
+const HTTPS_CORS_URL = HTTPS_EXAMPLE_URL + "html_cors-test-page.html";
 const PAUSE_URL = EXAMPLE_URL + "html_pause-test-page.html";
 const OPEN_REQUEST_IN_TAB_URL = EXAMPLE_URL + "html_open-request-in-tab.html";
 const CSP_URL = EXAMPLE_URL + "html_csp-test-page.html";
 const CSP_RESEND_URL = EXAMPLE_URL + "html_csp-resend-test-page.html";
-const IMAGE_CACHE_URL = EXAMPLE_URL + "html_image-cache.html";
+const IMAGE_CACHE_URL = HTTPS_EXAMPLE_URL + "html_image-cache.html";
 const SLOW_REQUESTS_URL = EXAMPLE_URL + "html_slow-requests-test-page.html";
 
 const SIMPLE_SJS = EXAMPLE_URL + "sjs_simple-test-server.sjs";
+const HTTPS_SIMPLE_SJS = HTTPS_EXAMPLE_URL + "sjs_simple-test-server.sjs";
 const SIMPLE_UNSORTED_COOKIES_SJS =
   EXAMPLE_URL + "sjs_simple-unsorted-cookies-test-server.sjs";
 const CONTENT_TYPE_SJS = EXAMPLE_URL + "sjs_content-type-test-server.sjs";
@@ -136,6 +142,7 @@
 const HSTS_SJS = EXAMPLE_URL + "sjs_hsts-test-server.sjs";
 const METHOD_SJS = EXAMPLE_URL + "sjs_method-test-server.sjs";
 const SLOW_SJS = EXAMPLE_URL + "sjs_slow-test-server.sjs";
+const HTTPS_SLOW_SJS = HTTPS_EXAMPLE_URL + "sjs_slow-test-server.sjs";
 const SET_COOKIE_SAME_SITE_SJS = EXAMPLE_URL + "sjs_set-cookie-same-site.sjs";
 const SEARCH_SJS = EXAMPLE_URL + "sjs_search-test-server.sjs";
 const HTTPS_SEARCH_SJS = HTTPS_EXAMPLE_URL + "sjs_search-test-server.sjs";
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/html_tracking-protection.html firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/html_tracking-protection.html
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/html_tracking-protection.html	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/html_tracking-protection.html	2021-10-20 19:28:15.000000000 +0000
@@ -13,7 +13,7 @@
 
       function performRequests() {
         const xhr = new XMLHttpRequest();
-        xhr.open("GET", "http://tracking.example.org/", true);
+        xhr.open("GET", "https://tracking.example.org/", true);
         xhr.send(null);
       }
     </script>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_content-type-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_content-type-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_content-type-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_content-type-test-server.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -4,16 +4,22 @@
 Cu.importGlobalProperties(["TextEncoder"]);
 
 function gzipCompressString(string, obs) {
-
-  let scs = Cc["@mozilla.org/streamConverters;1"]
-           .getService(Ci.nsIStreamConverterService);
-  let listener = Cc["@mozilla.org/network/stream-loader;1"]
-                .createInstance(Ci.nsIStreamLoader);
+  const scs = Cc["@mozilla.org/streamConverters;1"].getService(
+    Ci.nsIStreamConverterService
+  );
+  const listener = Cc["@mozilla.org/network/stream-loader;1"].createInstance(
+    Ci.nsIStreamLoader
+  );
   listener.init(obs);
-  let converter = scs.asyncConvertData("uncompressed", "gzip",
-                                        listener, null);
-  let stringStream = Cc["@mozilla.org/io/string-input-stream;1"]
-                    .createInstance(Ci.nsIStringInputStream);
+  const converter = scs.asyncConvertData(
+    "uncompressed",
+    "gzip",
+    listener,
+    null
+  );
+  const stringStream = Cc[
+    "@mozilla.org/io/string-input-stream;1"
+  ].createInstance(Ci.nsIStringInputStream);
   stringStream.data = string;
   converter.onStartRequest(null);
   converter.onDataAvailable(null, stringStream, 0, string.length);
@@ -21,11 +27,11 @@
 }
 
 function doubleGzipCompressString(string, observer) {
-  let observer2 = {
+  const observer2 = {
     onStreamComplete: function(loader, context, status, length, result) {
-      let buffer = String.fromCharCode.apply(this, result);
+      const buffer = String.fromCharCode.apply(this, result);
       gzipCompressString(buffer, observer);
-    }
+    },
   };
   gzipCompressString(string, observer2);
 }
@@ -33,18 +39,25 @@
 function handleRequest(request, response) {
   response.processAsync();
 
-  let params = request.queryString.split("&");
-  let format = (params.filter((s) => s.includes("fmt="))[0] || "").split("=")[1];
-  let status = (params.filter((s) => s.includes("sts="))[0] || "").split("=")[1] || 200;
-  let cookies = (params.filter((s) => s.includes("cookies="))[0] || "").split("=")[1] || 0;
-  let cors = request.queryString.includes("cors=1");
+  const params = request.queryString.split("&");
+  const format = (params.filter(s => s.includes("fmt="))[0] || "").split(
+    "="
+  )[1];
+  const status =
+    (params.filter(s => s.includes("sts="))[0] || "").split("=")[1] || 200;
+  const cookies =
+    (params.filter(s => s.includes("cookies="))[0] || "").split("=")[1] || 0;
+  const cors = request.queryString.includes("cors=1");
 
   let cachedCount = 0;
-  let cacheExpire = 60; // seconds
+  const cacheExpire = 60; // seconds
 
   function setCacheHeaders() {
     if (status != 304) {
-      response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");
+      response.setHeader(
+        "Cache-Control",
+        "no-cache, no-store, must-revalidate"
+      );
       response.setHeader("Pragma", "no-cache");
       response.setHeader("Expires", "0");
       return;
@@ -53,15 +66,27 @@
     if (cachedCount % 2) {
       response.setHeader("Cache-Control", "max-age=" + cacheExpire, false);
     } else {
-      response.setHeader("Expires", Date(Date.now() + cacheExpire * 1000), false);
+      response.setHeader(
+        "Expires",
+        Date(Date.now() + cacheExpire * 1000),
+        false
+      );
     }
     cachedCount++;
   }
 
   function setCookieHeaders() {
     if (cookies) {
-      response.setHeader("Set-Cookie", "name1=value1; Domain=.foo.example.com", true);
-      response.setHeader("Set-Cookie", "name2=value2; Domain=.example.com", true);
+      response.setHeader(
+        "Set-Cookie",
+        "name1=value1; Domain=.foo.example.com",
+        true
+      );
+      response.setHeader(
+        "Set-Cookie",
+        "name2=value2; Domain=.example.com",
+        true
+      );
     }
   }
 
@@ -72,248 +97,296 @@
   }
 
   let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-  timer.initWithCallback(() => {
-    // to avoid garbage collection
-    timer = null;
-    switch (format) {
-      case "txt": {
-        response.setStatusLine(request.httpVersion, status, "DA DA DA");
-        response.setHeader("Content-Type", "text/plain", false);
-        setCacheHeaders();
-
-        function convertToUtf8(str) {
-          return String.fromCharCode(...new TextEncoder().encode(str));
-        }
-
-        // This script must be evaluated as UTF-8 for this to write out the
-        // bytes of the string in UTF-8.  If it's evaluated as Latin-1, the
-        // written bytes will be the result of UTF-8-encoding this string
-        // *twice*.
-        let data = "Братан, ты вообще качаешься?";
-        let stringOfUtf8Bytes = convertToUtf8(data);
-        response.write(stringOfUtf8Bytes);
+  timer.initWithCallback(
+    () => {
+      // to avoid garbage collection
+      timer = null;
+      switch (format) {
+        case "txt": {
+          response.setStatusLine(request.httpVersion, status, "DA DA DA");
+          response.setHeader("Content-Type", "text/plain", false);
+          setCacheHeaders();
 
-        response.finish();
-        break;
-      }
-      case "xml": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/xml; charset=utf-8", false);
-        setCacheHeaders();
-        response.write("<label value='greeting'>Hello XML!</label>");
-        response.finish();
-        break;
-      }
-      case "html": {
-        let content = (params.filter((s) => s.includes("res="))[0] || "").split("=")[1];
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/html; charset=utf-8", false);
-        setAllowOriginHeaders();
-        setCacheHeaders();
-        setCookieHeaders();
-        response.write(content || "<p>Hello HTML!</p>");
-        response.finish();
-        break;
-      }
-      case "html-long": {
-        let str = new Array(102400 /* 100 KB in bytes */).join(".");
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/html; charset=utf-8", false);
-        setCacheHeaders();
-        response.write("<p>" + str + "</p>");
-        response.finish();
-        break;
-      }
-      case "css": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/css; charset=utf-8", false);
-        setCacheHeaders();
-        response.write("body:pre { content: 'Hello CSS!' }");
-        response.finish();
-        break;
-      }
-      case "js": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "application/javascript; charset=utf-8", false);
-        setCacheHeaders();
-        response.write("function() { return 'Hello JS!'; }");
-        response.finish();
-        break;
-      }
-      case "json": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "application/json; charset=utf-8", false);
-        setCacheHeaders();
-        response.write("{ \"greeting\": \"Hello JSON!\" }");
-        response.finish();
-        break;
-      }
-      case "jsonp": {
-        let fun = (params.filter((s) => s.includes("jsonp="))[0] || "").split("=")[1];
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/json; charset=utf-8", false);
-        setCacheHeaders();
-        response.write(fun + "({ \"greeting\": \"Hello JSONP!\" })");
-        response.finish();
-        break;
-      }
-      case "jsonp2": {
-        let fun = (params.filter((s) => s.includes("jsonp="))[0] || "").split("=")[1];
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/json; charset=utf-8", false);
-        setCacheHeaders();
-        response.write(" " + fun + " ( { \"greeting\": \"Hello weird JSONP!\" } ) ; ");
-        response.finish();
-        break;
-      }
-      case "json-b64": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/json; charset=utf-8", false);
-        setCacheHeaders();
-        response.write(btoa("{ \"greeting\": \"This is a base 64 string.\" }"));
-        response.finish();
-        break;
-      }
-      case "json-long": {
-        let str = "{ \"greeting\": \"Hello long string JSON!\" },";
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/json; charset=utf-8", false);
-        setCacheHeaders();
-        response.write("[" + new Array(2048).join(str).slice(0, -1) + "]");
-        response.finish();
-        break;
-      }
-      case "json-malformed": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/json; charset=utf-8", false);
-        setCacheHeaders();
-        response.write("{ \"greeting\": \"Hello malformed JSON!\" },");
-        response.finish();
-        break;
-      }
-      case "json-text-mime": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/plain; charset=utf-8", false);
-        setCacheHeaders();
-        response.write("{ \"greeting\": \"Hello third-party JSON!\" }");
-        response.finish();
-        break;
-      }
-      case "json-custom-mime": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/x-bigcorp-json; charset=utf-8", false);
-        setCacheHeaders();
-        response.write("{ \"greeting\": \"Hello oddly-named JSON!\" }");
-        response.finish();
-        break;
-      }
-      case "font": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "font/woff", false);
-        setAllowOriginHeaders();
-        setCacheHeaders();
-        response.finish();
-        break;
-      }
-      case "image": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "image/png", false);
-        setCacheHeaders();
-        response.finish();
-        break;
-      }
-      case "audio": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "audio/ogg", false);
-        setCacheHeaders();
-        response.finish();
-        break;
-      }
-      case "video": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "video/webm", false);
-        setCacheHeaders();
-        response.finish();
-        break;
-      }
-      case "flash": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "application/x-shockwave-flash", false);
-        setCacheHeaders();
-        response.finish();
-        break;
-      }
-      case "ws": {
-        response.setStatusLine(request.httpVersion, 101, "Switching Protocols");
-        response.setHeader("Connection", "upgrade", false);
-        response.setHeader("Upgrade", "websocket", false);
-        setCacheHeaders();
-        response.finish();
-        break;
-      }
-      case "gzip": {
-        // Note: we're doing a double gzip encoding to test multiple
-        // converters in network monitor.
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "text/plain", false);
-        response.setHeader("Content-Encoding", "gzip\t ,gzip", false);
-        setCacheHeaders();
-        let observer = {
-          onStreamComplete: function(loader, context, status, length, result) {
-            let buffer = String.fromCharCode.apply(this, result);
-            response.setHeader("Content-Length", "" + buffer.length, false);
-            response.write(buffer);
-            response.finish();
+          function convertToUtf8(str) {
+            return String.fromCharCode(...new TextEncoder().encode(str));
           }
-        };
-        let data = new Array(1000).join("Hello gzip!");
-        doubleGzipCompressString(data, observer);
-        break;
-      }
-      case "br": {
-        response.setStatusLine(request.httpVersion, status, "Connected");
-        response.setHeader("Content-Type", "text/plain", false);
-        response.setHeader("Content-Encoding", "br", false);
-        setCacheHeaders();
-        response.setHeader("Content-Length", "10", false);
-        // Use static data since we cannot encode brotli.
-        response.write("\x1b\x3f\x00\x00\x24\xb0\xe2\x99\x80\x12");
-        response.finish();
-        break;
-      }
-      case "hls-m3u8": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "application/x-mpegurl", false);
-        setCacheHeaders();
-        response.write("#EXTM3U\n");
-        response.finish();
-        break;
-      }
-      case "hls-m3u8-alt-mime-type": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "application/vnd.apple.mpegurl", false);
-        setCacheHeaders();
-        response.write("#EXTM3U\n");
-        response.finish();
-        break;
-      }
-      case "mpeg-dash": {
-        response.setStatusLine(request.httpVersion, status, "OK");
-        response.setHeader("Content-Type", "video/vnd.mpeg.dash.mpd", false);
-        setCacheHeaders();
-        response.write('<?xml version="1.0" encoding="UTF-8"?>\n');
-        response.write('<MPD xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"></MPD>\n');
-        response.finish();
-        break;
-      }
-      default: {
-        response.setStatusLine(request.httpVersion, 404, "Not Found");
-        response.setHeader("Content-Type", "text/html; charset=utf-8", false);
-        setCacheHeaders();
-        response.write("<blink>Not Found</blink>");
-        response.finish();
-        break;
+
+          // This script must be evaluated as UTF-8 for this to write out the
+          // bytes of the string in UTF-8.  If it's evaluated as Latin-1, the
+          // written bytes will be the result of UTF-8-encoding this string
+          // *twice*.
+          const data = "Братан, ты вообще качаешься?";
+          const stringOfUtf8Bytes = convertToUtf8(data);
+          response.write(stringOfUtf8Bytes);
+
+          response.finish();
+          break;
+        }
+        case "xml": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "text/xml; charset=utf-8", false);
+          setCacheHeaders();
+          response.write("<label value='greeting'>Hello XML!</label>");
+          response.finish();
+          break;
+        }
+        case "html": {
+          const content = (
+            params.filter(s => s.includes("res="))[0] || ""
+          ).split("=")[1];
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "text/html; charset=utf-8", false);
+          setAllowOriginHeaders();
+          setCacheHeaders();
+          setCookieHeaders();
+          response.write(content || "<p>Hello HTML!</p>");
+          response.finish();
+          break;
+        }
+        case "html-long": {
+          const str = new Array(102400 /* 100 KB in bytes */).join(".");
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "text/html; charset=utf-8", false);
+          setCacheHeaders();
+          response.write("<p>" + str + "</p>");
+          response.finish();
+          break;
+        }
+        case "css": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "text/css; charset=utf-8", false);
+          setCacheHeaders();
+          response.write("body:pre { content: 'Hello CSS!' }");
+          response.finish();
+          break;
+        }
+        case "js": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader(
+            "Content-Type",
+            "application/javascript; charset=utf-8",
+            false
+          );
+          setCacheHeaders();
+          response.write("function() { return 'Hello JS!'; }");
+          response.finish();
+          break;
+        }
+        case "json": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader(
+            "Content-Type",
+            "application/json; charset=utf-8",
+            false
+          );
+          setCacheHeaders();
+          response.write('{ "greeting": "Hello JSON!" }');
+          response.finish();
+          break;
+        }
+        case "jsonp": {
+          const fun = (params.filter(s => s.includes("jsonp="))[0] || "").split(
+            "="
+          )[1];
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "text/json; charset=utf-8", false);
+          setCacheHeaders();
+          response.write(fun + '({ "greeting": "Hello JSONP!" })');
+          response.finish();
+          break;
+        }
+        case "jsonp2": {
+          const fun = (params.filter(s => s.includes("jsonp="))[0] || "").split(
+            "="
+          )[1];
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "text/json; charset=utf-8", false);
+          setCacheHeaders();
+          response.write(
+            " " + fun + ' ( { "greeting": "Hello weird JSONP!" } ) ; '
+          );
+          response.finish();
+          break;
+        }
+        case "json-b64": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "text/json; charset=utf-8", false);
+          setCacheHeaders();
+          response.write(btoa('{ "greeting": "This is a base 64 string." }'));
+          response.finish();
+          break;
+        }
+        case "json-long": {
+          const str = '{ "greeting": "Hello long string JSON!" },';
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "text/json; charset=utf-8", false);
+          setCacheHeaders();
+          response.write("[" + new Array(2048).join(str).slice(0, -1) + "]");
+          response.finish();
+          break;
+        }
+        case "json-malformed": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "text/json; charset=utf-8", false);
+          setCacheHeaders();
+          response.write('{ "greeting": "Hello malformed JSON!" },');
+          response.finish();
+          break;
+        }
+        case "json-text-mime": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader(
+            "Content-Type",
+            "text/plain; charset=utf-8",
+            false
+          );
+          setCacheHeaders();
+          response.write('{ "greeting": "Hello third-party JSON!" }');
+          response.finish();
+          break;
+        }
+        case "json-custom-mime": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader(
+            "Content-Type",
+            "text/x-bigcorp-json; charset=utf-8",
+            false
+          );
+          setCacheHeaders();
+          response.write('{ "greeting": "Hello oddly-named JSON!" }');
+          response.finish();
+          break;
+        }
+        case "font": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "font/woff", false);
+          setAllowOriginHeaders();
+          setCacheHeaders();
+          response.finish();
+          break;
+        }
+        case "image": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "image/png", false);
+          setCacheHeaders();
+          response.finish();
+          break;
+        }
+        case "audio": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "audio/ogg", false);
+          setCacheHeaders();
+          response.finish();
+          break;
+        }
+        case "video": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "video/webm", false);
+          setCacheHeaders();
+          response.finish();
+          break;
+        }
+        case "flash": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader(
+            "Content-Type",
+            "application/x-shockwave-flash",
+            false
+          );
+          setCacheHeaders();
+          response.finish();
+          break;
+        }
+        case "ws": {
+          response.setStatusLine(
+            request.httpVersion,
+            101,
+            "Switching Protocols"
+          );
+          response.setHeader("Connection", "upgrade", false);
+          response.setHeader("Upgrade", "websocket", false);
+          setCacheHeaders();
+          response.finish();
+          break;
+        }
+        case "gzip": {
+          // Note: we're doing a double gzip encoding to test multiple
+          // converters in network monitor.
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "text/plain", false);
+          response.setHeader("Content-Encoding", "gzip\t ,gzip", false);
+          setCacheHeaders();
+          const observer = {
+            onStreamComplete: function(
+              loader,
+              context,
+              status,
+              length,
+              result
+            ) {
+              const buffer = String.fromCharCode.apply(this, result);
+              response.setHeader("Content-Length", "" + buffer.length, false);
+              response.write(buffer);
+              response.finish();
+            },
+          };
+          const data = new Array(1000).join("Hello gzip!");
+          doubleGzipCompressString(data, observer);
+          break;
+        }
+        case "br": {
+          response.setStatusLine(request.httpVersion, status, "Connected");
+          response.setHeader("Content-Type", "text/plain", false);
+          response.setHeader("Content-Encoding", "br", false);
+          setCacheHeaders();
+          response.setHeader("Content-Length", "10", false);
+          // Use static data since we cannot encode brotli.
+          response.write("\x1b\x3f\x00\x00\x24\xb0\xe2\x99\x80\x12");
+          response.finish();
+          break;
+        }
+        case "hls-m3u8": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "application/x-mpegurl", false);
+          setCacheHeaders();
+          response.write("#EXTM3U\n");
+          response.finish();
+          break;
+        }
+        case "hls-m3u8-alt-mime-type": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader(
+            "Content-Type",
+            "application/vnd.apple.mpegurl",
+            false
+          );
+          setCacheHeaders();
+          response.write("#EXTM3U\n");
+          response.finish();
+          break;
+        }
+        case "mpeg-dash": {
+          response.setStatusLine(request.httpVersion, status, "OK");
+          response.setHeader("Content-Type", "video/vnd.mpeg.dash.mpd", false);
+          setCacheHeaders();
+          response.write('<?xml version="1.0" encoding="UTF-8"?>\n');
+          response.write(
+            '<MPD xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"></MPD>\n'
+          );
+          response.finish();
+          break;
+        }
+        default: {
+          response.setStatusLine(request.httpVersion, 404, "Not Found");
+          response.setHeader("Content-Type", "text/html; charset=utf-8", false);
+          setCacheHeaders();
+          response.write("<blink>Not Found</blink>");
+          response.finish();
+          break;
+        }
       }
-    }
-  }, 10, Ci.nsITimer.TYPE_ONE_SHOT); // Make sure this request takes a few ms.
+    },
+    10,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  ); // Make sure this request takes a few ms.
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_https-redirect-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_https-redirect-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_https-redirect-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_https-redirect-test-server.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -15,5 +15,4 @@
     response.setStatusLine(request.httpVersion, 200, "OK");
     response.write("Page was accessed over HTTPS!");
   }
-
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_json-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_json-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_json-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_json-test-server.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -2,7 +2,6 @@
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
 function handleRequest(request, response) {
-
   response.setStatusLine(request.httpVersion, 200, "OK");
   response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");
   response.setHeader("Pragma", "no-cache");
@@ -12,14 +11,14 @@
 
   // This server checks the name parameter from the request to decide which JSON object to
   // return.
-  let params = request.queryString.split("&");
-  let name = (params.filter((s) => s.includes("name="))[0] || "").split("=")[1];
+  const params = request.queryString.split("&");
+  const name = (params.filter(s => s.includes("name="))[0] || "").split("=")[1];
   switch (name) {
     case "null":
-      response.write("{ \"greeting\": null }");
+      response.write('{ "greeting": null }');
       break;
     case "nogrip":
-      response.write("{\"obj\": {\"type\": \"string\" }}");
+      response.write('{"obj": {"type": "string" }}');
       break;
     case "empty":
       response.write("{}");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_method-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_method-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_method-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_method-test-server.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -3,9 +3,11 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
   "nsIBinaryInputStream",
-  "setInputStream");
+  "setInputStream"
+);
 
 function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 200, "Och Aye");
@@ -14,12 +16,18 @@
   var body = "";
   if (request.method == "POST") {
     var bodyStream = new BinaryInputStream(request.bodyInputStream);
-    var bytes = [], avail = 0;
+    var bytes = [],
+      avail = 0;
     while ((avail = bodyStream.available()) > 0) {
-      body += String.fromCharCode.apply(String, bodyStream.readByteArray(avail));
+      body += String.fromCharCode.apply(
+        String,
+        bodyStream.readByteArray(avail)
+      );
     }
   }
-  var contentType = request.hasHeader("content-type") ? request.getHeader("content-type") : ""
+  var contentType = request.hasHeader("content-type")
+    ? request.getHeader("content-type")
+    : "";
   var bodyOutput = [request.method, contentType, body].join("\n");
 
   response.bodyOutputStream.write(bodyOutput, bodyOutput.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_slow-script-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_slow-script-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_slow-script-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_slow-script-server.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -9,9 +9,13 @@
 function handleRequest(request, response) {
   response.processAsync();
   timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-  timer.init(() => {
-    response.setHeader("Content-Type", "text/javascript", false);
-    response.write("console.log('script loaded')\n");
-    response.finish();
-  }, DELAY_MS, Ci.nsITimer.TYPE_ONE_SHOT);
+  timer.init(
+    () => {
+      response.setHeader("Content-Type", "text/javascript", false);
+      response.write("console.log('script loaded')\n");
+      response.finish();
+    },
+    DELAY_MS,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_slow-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_slow-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_slow-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_slow-test-server.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -9,9 +9,15 @@
 function handleRequest(request, response) {
   response.processAsync();
   timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-  timer.init(() => {
-    response.setHeader("Content-Type", "text/html", false);
-    response.write("<body>Slow loading page for netmonitor test. You should never see this.</body>");
-    response.finish();
-  }, DELAY_MS, Ci.nsITimer.TYPE_ONE_SHOT);
+  timer.init(
+    () => {
+      response.setHeader("Content-Type", "text/html", false);
+      response.write(
+        "<body>Slow loading page for netmonitor test. You should never see this.</body>"
+      );
+      response.finish();
+    },
+    DELAY_MS,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_sorting-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_sorting-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_sorting-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_sorting-test-server.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -4,21 +4,32 @@
 function handleRequest(request, response) {
   response.processAsync();
 
-  let params = request.queryString.split("&");
-  let index = params.filter((s) => s.includes("index="))[0].split("=")[1];
+  const params = request.queryString.split("&");
+  const index = params.filter(s => s.includes("index="))[0].split("=")[1];
 
   let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-  timer.initWithCallback(() => {
-    // to avoid garbage collection
-    timer = null;
-    response.setStatusLine(request.httpVersion, index == 1 ? 101 : index * 100, "Meh");
+  timer.initWithCallback(
+    () => {
+      // to avoid garbage collection
+      timer = null;
+      response.setStatusLine(
+        request.httpVersion,
+        index == 1 ? 101 : index * 100,
+        "Meh"
+      );
 
-    response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");
-    response.setHeader("Pragma", "no-cache");
-    response.setHeader("Expires", "0");
+      response.setHeader(
+        "Cache-Control",
+        "no-cache, no-store, must-revalidate"
+      );
+      response.setHeader("Pragma", "no-cache");
+      response.setHeader("Expires", "0");
 
-    response.setHeader("Content-Type", "text/" + index, false);
-    response.write(new Array(index * 10).join(index)); // + 0.01 KB
-    response.finish();
-  }, 10, Ci.nsITimer.TYPE_ONE_SHOT); // Make sure this request takes a few ms.
+      response.setHeader("Content-Type", "text/" + index, false);
+      response.write(new Array(index * 10).join(index)); // + 0.01 KB
+      response.finish();
+    },
+    10,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  ); // Make sure this request takes a few ms.
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_sse-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_sse-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_sse-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_sse-test-server.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,6 +1,6 @@
-function handleRequest(request, response) {
-  response.processAsync();
-  response.setHeader("Content-Type", "text/event-stream");
-  response.write("data: Why so serious?\n\n");
-  response.finish();
-}
+function handleRequest(request, response) {
+  response.processAsync();
+  response.setHeader("Content-Type", "text/event-stream");
+  response.write("data: Why so serious?\n\n");
+  response.finish();
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_status-codes-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_status-codes-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_status-codes-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_status-codes-test-server.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -4,54 +4,67 @@
 function handleRequest(request, response) {
   response.processAsync();
 
-  let params = request.queryString.split("&");
-  let status = params.filter(s => s.includes("sts="))[0].split("=")[1];
-  let cached = params.filter(s => s === 'cached').length !== 0;
+  const params = request.queryString.split("&");
+  const status = params.filter(s => s.includes("sts="))[0].split("=")[1];
+  const cached = params.filter(s => s === "cached").length !== 0;
 
   let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-  timer.initWithCallback(() => {
-    // to avoid garbage collection
-    timer = null;
-    switch (status) {
-      case "100":
-        response.setStatusLine(request.httpVersion, 101, "Switching Protocols");
-        break;
-      case "200":
-        response.setStatusLine(request.httpVersion, 202, "Created");
-        break;
-      case "300":
-        response.setStatusLine(request.httpVersion, 303, "See Other");
-        break;
-      case "304":
-        response.setStatusLine(request.httpVersion, 304, "Not Modified");
-        break;
-      case "400":
-        response.setStatusLine(request.httpVersion, 404, "Not Found");
-        break;
-      case "500":
-        response.setStatusLine(request.httpVersion, 501, "Not Implemented");
-        break;
-      case "ok":
-        response.setStatusLine(request.httpVersion, 200, "OK");
-        break;
-      case "redirect":
-        response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
-        response.setHeader("Location", "http://example.com/redirected");
-        break;
-    }
+  timer.initWithCallback(
+    () => {
+      // to avoid garbage collection
+      timer = null;
+      switch (status) {
+        case "100":
+          response.setStatusLine(
+            request.httpVersion,
+            101,
+            "Switching Protocols"
+          );
+          break;
+        case "200":
+          response.setStatusLine(request.httpVersion, 202, "Created");
+          break;
+        case "300":
+          response.setStatusLine(request.httpVersion, 303, "See Other");
+          break;
+        case "304":
+          response.setStatusLine(request.httpVersion, 304, "Not Modified");
+          break;
+        case "400":
+          response.setStatusLine(request.httpVersion, 404, "Not Found");
+          break;
+        case "500":
+          response.setStatusLine(request.httpVersion, 501, "Not Implemented");
+          break;
+        case "ok":
+          response.setStatusLine(request.httpVersion, 200, "OK");
+          break;
+        case "redirect":
+          response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
+          response.setHeader("Location", "http://example.com/redirected");
+          break;
+      }
 
-    if(!cached) {
-      response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate");
-      response.setHeader("Pragma", "no-cache");
-      response.setHeader("Expires", "0");
-    }
-    else {
-      response.setHeader("Cache-Control", "no-transform,public,max-age=300,s-maxage=900");
-      response.setHeader("Expires", "Thu, 01 Dec 2100 20:00:00 GMT");
-    }
+      if (!cached) {
+        response.setHeader(
+          "Cache-Control",
+          "no-cache, no-store, must-revalidate"
+        );
+        response.setHeader("Pragma", "no-cache");
+        response.setHeader("Expires", "0");
+      } else {
+        response.setHeader(
+          "Cache-Control",
+          "no-transform,public,max-age=300,s-maxage=900"
+        );
+        response.setHeader("Expires", "Thu, 01 Dec 2100 20:00:00 GMT");
+      }
 
-    response.setHeader("Content-Type", "text/plain; charset=utf-8", false);
-    response.write("Hello status code " + status + "!");
-    response.finish();
-  }, 10, Ci.nsITimer.TYPE_ONE_SHOT); // Make sure this request takes a few ms.
+      response.setHeader("Content-Type", "text/plain; charset=utf-8", false);
+      response.write("Hello status code " + status + "!");
+      response.finish();
+    },
+    10,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  ); // Make sure this request takes a few ms.
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_timings-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_timings-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_timings-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_timings-test-server.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -2,13 +2,13 @@
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
 var trailerServerTiming = [
-  {metric:"metric3", duration:"99789.11", description:"time3"},
-  {metric:"metric4", duration:"1112.13", description:"time4"}
+  { metric: "metric3", duration: "99789.11", description: "time3" },
+  { metric: "metric4", duration: "1112.13", description: "time4" },
 ];
 
 var responseServerTiming = [
-  {metric:"metric1", duration:"123.4", description:"time1"},
-  {metric:"metric2", duration:"0", description:"time2"}
+  { metric: "metric1", duration: "123.4", description: "time1" },
+  { metric: "metric2", duration: "0", description: "time2" },
 ];
 
 function handleRequest(request, response) {
@@ -29,9 +29,16 @@
 function createServerTimingHeader(headerData) {
   var header = "";
   for (var i = 0; i < headerData.length; i++) {
-    header += "Server-Timing: " + headerData[i].metric + ";" +
-      "dur=" + headerData[i].duration + ";" +
-      "desc=" + headerData[i].description + "\r\n";
+    header +=
+      "Server-Timing: " +
+      headerData[i].metric +
+      ";" +
+      "dur=" +
+      headerData[i].duration +
+      ";" +
+      "desc=" +
+      headerData[i].description +
+      "\r\n";
   }
   return header;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_truncate-test-server.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_truncate-test-server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/netmonitor/test/sjs_truncate-test-server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/netmonitor/test/sjs_truncate-test-server.sjs	2021-10-20 19:28:15.000000000 +0000
@@ -2,8 +2,10 @@
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
 function handleRequest(request, response) {
-  let params = request.queryString.split("&");
-  let limit = (params.filter((s) => s.includes("limit="))[0] || "").split("=")[1];
+  const params = request.queryString.split("&");
+  const limit = (params.filter(s => s.includes("limit="))[0] || "").split(
+    "="
+  )[1];
 
   response.setStatusLine(request.httpVersion, 200, "Och Aye");
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/shared/test/browser_dbg_listtabs-01.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/shared/test/browser_dbg_listtabs-01.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/shared/test/browser_dbg_listtabs-01.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/shared/test/browser_dbg_listtabs-01.js	2021-10-20 19:28:15.000000000 +0000
@@ -13,98 +13,68 @@
 const TAB1_URL = EXAMPLE_URL + "doc_empty-tab-01.html";
 const TAB2_URL = EXAMPLE_URL + "doc_empty-tab-02.html";
 
-var gTab1, gTab1Front, gTab2, gTab2Front, gClient;
-
-function test() {
+add_task(async function test() {
   DevToolsServer.init();
   DevToolsServer.registerAllActors();
 
   const transport = DevToolsServer.connectPipe();
-  gClient = new DevToolsClient(transport);
-  gClient.connect().then(([aType, aTraits]) => {
-    is(aType, "browser", "Root actor should identify itself as a browser.");
-
-    Promise.resolve(null)
-      .then(testFirstTab)
-      .then(testSecondTab)
-      .then(testRemoveTab)
-      .then(testAttachRemovedTab)
-      .then(() => gClient.close())
-      .then(finish)
-      .catch(error => {
-        ok(false, "Got an error: " + error.message + "\n" + error.stack);
-      });
-  });
-}
-
-function testFirstTab() {
-  return addTab(TAB1_URL).then(tab => {
-    gTab1 = tab;
-
-    return getTargetActorForUrl(gClient, TAB1_URL).then(front => {
-      ok(front, "Should find a target actor for the first tab.");
-      gTab1Front = front;
-    });
-  });
-}
-
-function testSecondTab() {
-  return addTab(TAB2_URL).then(tab => {
-    gTab2 = tab;
-
-    return getTargetActorForUrl(gClient, TAB1_URL).then(firstFront => {
-      return getTargetActorForUrl(gClient, TAB2_URL).then(secondFront => {
-        is(firstFront, gTab1Front, "First tab's actor shouldn't have changed.");
-        ok(secondFront, "Should find a target actor for the second tab.");
-        gTab2Front = secondFront;
-      });
-    });
-  });
-}
+  const client = new DevToolsClient(transport);
+  const [aType] = await client.connect();
+  is(aType, "browser", "Root actor should identify itself as a browser.");
+
+  const firstTab = await testFirstTab(client);
+  const secondTab = await testSecondTab(client, firstTab.front);
+  await testRemoveTab(client, firstTab.tab);
+  await testAttachRemovedTab(secondTab.tab, secondTab.front);
+  await client.close();
+});
 
-function testRemoveTab() {
-  return removeTab(gTab1).then(() => {
-    return getTargetActorForUrl(gClient, TAB1_URL).then(front => {
-      ok(!front, "Shouldn't find a target actor for the first tab anymore.");
-    });
-  });
-}
+async function testFirstTab(client) {
+  const tab = await addTab(TAB1_URL);
 
-function testAttachRemovedTab() {
-  return removeTab(gTab2).then(() => {
-    return new Promise((resolve, reject) => {
-      gClient.on("paused", () => {
-        ok(
-          false,
-          "Attaching to an exited target actor shouldn't generate a pause."
-        );
-        reject();
-      });
-
-      const { actorID } = gTab2Front;
-      gTab2Front.reconfigure({}).then(null, error => {
-        ok(
-          error.message.includes(
-            `Connection closed, pending request to ${actorID}, type reconfigure failed`
-          ),
-          "Actor is gone since the tab was removed."
-        );
-        resolve();
-      });
-    });
-  });
+  const front = await getDescriptorActorForUrl(client, TAB1_URL);
+  ok(front, "Should find a target actor for the first tab.");
+  return { tab, front };
+}
+
+async function testSecondTab(client, firstTabFront) {
+  const tab = await addTab(TAB2_URL);
+
+  const firstFront = await getDescriptorActorForUrl(client, TAB1_URL);
+  const secondFront = await getDescriptorActorForUrl(client, TAB2_URL);
+  is(firstFront, firstTabFront, "First tab's actor shouldn't have changed.");
+  ok(secondFront, "Should find a target actor for the second tab.");
+  return { tab, front: secondFront };
+}
+
+async function testRemoveTab(client, firstTab) {
+  await removeTab(firstTab);
+  const front = await getDescriptorActorForUrl(client, TAB1_URL);
+  ok(!front, "Shouldn't find a target actor for the first tab anymore.");
+}
+
+async function testAttachRemovedTab(secondTab, secondTabFront) {
+  await removeTab(secondTab);
+
+  const { actorID } = secondTabFront;
+  try {
+    await secondTabFront.getFavicon({});
+    ok(
+      false,
+      "any request made to the descriptor for a closed tab should have failed"
+    );
+  } catch (error) {
+    ok(
+      error.message.includes(
+        `Connection closed, pending request to ${actorID}, type getFavicon failed`
+      ),
+      "Actor is gone since the tab was removed."
+    );
+  }
 }
 
-registerCleanupFunction(function() {
-  gTab1 = null;
-  gTab1Front = null;
-  gTab2 = null;
-  gTab2Front = null;
-  gClient = null;
-});
-
-async function getTargetActorForUrl(client, url) {
+async function getDescriptorActorForUrl(client, url) {
   const tabDescriptors = await client.mainRoot.listTabs();
   const tabDescriptor = tabDescriptors.find(front => front.url == url);
-  return tabDescriptor?.getTarget();
+  return tabDescriptor;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/shared/theme.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/shared/theme.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/shared/theme.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/shared/theme.js	2021-10-20 19:28:16.000000000 +0000
@@ -91,7 +91,6 @@
  */
 const addThemeObserver = (exports.addThemeObserver = observer => {
   Services.obs.addObserver(observer, "look-and-feel-changed");
-  Services.prefs.addObserver("browser.theme.toolbar-theme", observer);
   Services.prefs.addObserver(THEME_PREF, observer);
 });
 
@@ -100,7 +99,6 @@
  */
 const removeThemeObserver = (exports.removeThemeObserver = observer => {
   Services.obs.removeObserver(observer, "look-and-feel-changed");
-  Services.prefs.removeObserver("browser.theme.toolbar-theme", observer);
   Services.prefs.removeObserver(THEME_PREF, observer);
 });
 /* eslint-enable */
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/shared/theme-switching.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/shared/theme-switching.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/shared/theme-switching.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/shared/theme-switching.js	2021-10-20 19:28:16.000000000 +0000
@@ -15,7 +15,6 @@
 
   const {
     getTheme,
-    getAutoTheme,
     addThemeObserver,
     removeThemeObserver,
   } = require("devtools/client/shared/theme");
@@ -67,7 +66,7 @@
     // The theme might not be available anymore (e.g. uninstalled)
     // Use the default one.
     if (!newThemeDef) {
-      newThemeDef = gDevTools.getThemeDefinition(getAutoTheme());
+      newThemeDef = gDevTools.getThemeDefinition("light");
     }
 
     // Store the sheets in a WeakMap for access later when the theme gets
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/actions/autocomplete.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/actions/autocomplete.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/actions/autocomplete.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/actions/autocomplete.js	2021-10-20 19:28:16.000000000 +0000
@@ -11,6 +11,11 @@
   AUTOCOMPLETE_RETRIEVE_FROM_CACHE,
 } = require("devtools/client/webconsole/constants");
 
+const {
+  analyzeInputString,
+  shouldInputBeAutocompleted,
+} = require("devtools/shared/webconsole/analyze-input-string");
+
 /**
  * Update the data used for the autocomplete popup in the console input (JsTerm).
  *
@@ -27,6 +32,8 @@
     }
 
     const inputValue = hud.getInputValue();
+    const mappedVars = hud.getMappedVariables() ?? {};
+    const allVars = (expressionVars ?? []).concat(Object.keys(mappedVars));
     const frameActorId = await webConsoleUI.getFrameActor();
     const webconsoleFront = await webConsoleUI.getWebconsoleFront({
       frameActorId,
@@ -43,39 +50,31 @@
       return dispatch(autocompleteClear());
     }
 
-    const input = inputValue.substring(0, cursor);
+    const rawInput = inputValue.substring(0, cursor);
     const retrieveFromCache =
       !force &&
       cache &&
       cache.input &&
-      input.startsWith(cache.input) &&
-      /[a-zA-Z0-9]$/.test(input) &&
+      rawInput.startsWith(cache.input) &&
+      /[a-zA-Z0-9]$/.test(rawInput) &&
       frameActorId === cache.frameActorId;
 
     if (retrieveFromCache) {
-      return dispatch(autoCompleteDataRetrieveFromCache(input));
+      return dispatch(autoCompleteDataRetrieveFromCache(rawInput));
     }
 
-    let authorizedEvaluations =
-      Array.isArray(state.authorizedEvaluations) &&
-      state.authorizedEvaluations.length > 0
-        ? state.authorizedEvaluations
-        : [];
-
-    if (Array.isArray(getterPath) && getterPath.length > 0) {
-      // We need to check for any previous authorizations. For example, here if getterPath
-      // is ["a", "b", "c", "d"], we want to see if there was any other path that was
-      // authorized in a previous request. For that, we only add the previous
-      // authorizations if the last auth is contained in getterPath. (for the example, we
-      // would keep if it is [["a", "b"]], not if [["b"]] nor [["f", "g"]])
-      const last = authorizedEvaluations[authorizedEvaluations.length - 1];
-      const concat = !last || last.every((x, index) => x === getterPath[index]);
-      if (concat) {
-        authorizedEvaluations.push(getterPath);
-      } else {
-        authorizedEvaluations = [getterPath];
-      }
-    }
+    const authorizedEvaluations = updateAuthorizedEvaluations(
+      state.authorizedEvaluations,
+      getterPath,
+      mappedVars
+    );
+
+    const { input, originalExpression } = await getMappedInput(
+      rawInput,
+      mappedVars,
+      hud,
+      webconsoleFront
+    );
 
     return dispatch(
       autocompleteDataFetch({
@@ -84,13 +83,117 @@
         webconsoleFront,
         authorizedEvaluations,
         force,
-        expressionVars,
+        allVars,
+        mappedVars,
+        originalExpression,
       })
     );
   };
 }
 
 /**
+ * Combine or replace authorizedEvaluations with the newly authorized getter path, if any.
+ * @param {Array<Array<String>>} authorizedEvaluations Existing authorized evaluations (may
+ * be updated in place)
+ * @param {Array<String>} getterPath The new getter path
+ * @param {{[String]: String}} mappedVars Map of original to generated variable names.
+ * @returns {Array<Array<String>>} The updated authorized evaluations (the original array,
+ * if it was updated in place) */
+function updateAuthorizedEvaluations(
+  authorizedEvaluations,
+  getterPath,
+  mappedVars
+) {
+  if (
+    !Array.isArray(authorizedEvaluations) ||
+    authorizedEvaluations.length == 0
+  ) {
+    authorizedEvaluations = [];
+  }
+
+  if (Array.isArray(getterPath) && getterPath.length > 0) {
+    // We need to check for any previous authorizations. For example, here if getterPath
+    // is ["a", "b", "c", "d"], we want to see if there was any other path that was
+    // authorized in a previous request. For that, we only add the previous
+    // authorizations if the last auth is contained in getterPath. (for the example, we
+    // would keep if it is [["a", "b"]], not if [["b"]] nor [["f", "g"]])
+    const last = authorizedEvaluations[authorizedEvaluations.length - 1];
+
+    const generatedPath = mappedVars[getterPath[0]]?.split(".");
+    if (generatedPath) {
+      getterPath = generatedPath.concat(getterPath.slice(1));
+    }
+
+    const isMappedVariable =
+      generatedPath && getterPath.length === generatedPath.length;
+    const concat = !last || last.every((x, index) => x === getterPath[index]);
+    if (isMappedVariable) {
+      // If the path consists only of an original variable, add all the prefixes of its
+      // mapping. For example, for myVar => a.b.c, authorize a, a.b, and a.b.c. This
+      // ensures we'll only show a prompt for myVar once even if a.b and a.b.c are both
+      // unsafe getters.
+      authorizedEvaluations = generatedPath.map((_, i) =>
+        generatedPath.slice(0, i + 1)
+      );
+    } else if (concat) {
+      authorizedEvaluations.push(getterPath);
+    } else {
+      authorizedEvaluations = [getterPath];
+    }
+  }
+  return authorizedEvaluations;
+}
+
+/**
+ * Apply source mapping to the autocomplete input.
+ * @param {String} rawInput The input to map.
+ * @param {{[String]: String}} mappedVars Map of original to generated variable names.
+ * @param {WebConsole} hud A reference to the webconsole hud.
+ * @param {WebConsoleFront} webconsoleFront The webconsole front.
+ * @returns {String} The source-mapped expression to autocomplete.
+ */
+async function getMappedInput(rawInput, mappedVars, hud, webconsoleFront) {
+  if (!mappedVars || Object.keys(mappedVars).length == 0) {
+    return { input: rawInput, originalExpression: undefined };
+  }
+
+  const inputAnalysis = analyzeInputString(rawInput, 500);
+  if (!shouldInputBeAutocompleted(inputAnalysis)) {
+    return { input: rawInput, originalExpression: undefined };
+  }
+
+  const {
+    mainExpression: originalExpression,
+    isPropertyAccess,
+    isElementAccess,
+    lastStatement,
+  } = inputAnalysis;
+
+  // If we're autocompleting a variable name, pass it through unchanged so that we
+  // show original variable names rather than generated ones.
+  // For example, if we have the mapping `myVariable` => `x`, show variables starting
+  // with myVariable rather than x.
+  if (!isPropertyAccess && !isElementAccess) {
+    return { input: lastStatement, originalExpression };
+  }
+
+  let generated =
+    (await hud.getMappedExpression(originalExpression))?.expression ??
+    originalExpression;
+  // Strip off the semicolon if the expression was converted to a statement
+  const trailingSemicolon = /;\s*$/;
+  if (
+    trailingSemicolon.test(generated) &&
+    !trailingSemicolon.test(originalExpression)
+  ) {
+    generated = generated.slice(0, generated.lastIndexOf(";"));
+  }
+
+  const suffix = lastStatement.slice(originalExpression.length);
+  return { input: generated + suffix, originalExpression };
+}
+
+/**
  * Called when the autocompletion data should be cleared.
  */
 function autocompleteClear() {
@@ -136,7 +239,9 @@
   force,
   webconsoleFront,
   authorizedEvaluations,
-  expressionVars,
+  allVars,
+  mappedVars,
+  originalExpression,
 }) {
   return async ({ dispatch, webConsoleUI }) => {
     const selectedNodeActor = webConsoleUI.getSelectedNodeActorID();
@@ -150,10 +255,17 @@
         frameActorId,
         selectedNodeActor,
         authorizedEvaluations,
-        expressionVars
+        allVars
       )
       .then(data => {
-        dispatch(
+        if (data.isUnsafeGetter && originalExpression !== undefined) {
+          data.getterPath = unmapGetterPath(
+            data.getterPath,
+            originalExpression,
+            mappedVars
+          );
+        }
+        return dispatch(
           autocompleteDataReceive({
             id,
             input,
@@ -161,7 +273,6 @@
             frameActorId,
             data,
             authorizedEvaluations,
-            expressionVars,
           })
         );
       })
@@ -173,6 +284,38 @@
 }
 
 /**
+ * Replace generated variable names in an unsafe getter path with their original
+ * counterparts.
+ * @param {Array<String>} getterPath Array of properties leading up to and including the
+ * unsafe getter.
+ * @param {String} originalExpression The expression that was evaluated, before mapping.
+ * @param {{[String]: String}} mappedVars Map of original to generated variable names.
+ * @returns {Array<String>} An updated getter path containing original variables.
+ */
+function unmapGetterPath(getterPath, originalExpression, mappedVars) {
+  // We know that the original expression is a sequence of property accesses, that only
+  // the first part can be a mapped variable, and that the getter path must start with
+  // its generated path or be a prefix of it.
+
+  // Suppose we have the expression `foo.bar`, which maps to `a.b.c.bar`.
+  // Get the first part of the expression ("foo")
+  const originalVariable = /^[^.[?]*/s.exec(originalExpression)[0].trim();
+  const generatedVariable = mappedVars[originalVariable];
+  if (generatedVariable) {
+    // Get number of properties in "a.b.c"
+    const generatedVariableParts = generatedVariable.split(".");
+    // Replace ["a", "b", "c"] with "foo" in the getter path.
+    // Note that this will also work if the getter path ends inside of the mapped
+    // variable, like ["a", "b"].
+    return [
+      originalVariable,
+      ...getterPath.slice(generatedVariableParts.length),
+    ];
+  }
+  return getterPath;
+}
+
+/**
  * Called when we receive the autocompletion data from the server.
  *
  * @param {Object} Object of the following shape:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/browser_jsterm_autocomplete_mapped_variables.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/browser_jsterm_autocomplete_mapped_variables.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/browser_jsterm_autocomplete_mapped_variables.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/browser_jsterm_autocomplete_mapped_variables.js	2021-10-20 19:28:16.000000000 +0000
@@ -0,0 +1,130 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that makes sure source mapped variables appear in autocompletion
+// on an equal footing with variables from the generated source.
+
+"use strict";
+/* import-globals-from head.js*/
+
+const TEST_URI =
+  "http://example.com/browser/devtools/client/webconsole/" +
+  "test/browser/test-autocomplete-mapped.html";
+
+add_task(async function() {
+  const hud = await openNewTabAndConsole(TEST_URI);
+  const { jsterm } = hud;
+  const { autocompletePopup: popup } = jsterm;
+  const toolbox = await gDevTools.getToolboxForTab(gBrowser.selectedTab);
+
+  info("Opening Debugger and enabling map scopes");
+  await openDebugger();
+  const dbg = createDebuggerContext(toolbox);
+  dbg.actions.toggleMapScopes();
+
+  info("Waiting for pause");
+  // This calls firstCall() on the content page and waits for pause. (firstCall
+  // has a debugger statement)
+  await pauseDebugger(dbg);
+
+  await toolbox.selectTool("webconsole");
+  await setInputValueForAutocompletion(hud, "valu");
+  ok(
+    hasExactPopupLabels(popup, ["value", "valueOf", "values"]),
+    "Autocomplete popup displays original variable name"
+  );
+
+  await setInputValueForAutocompletion(hud, "temp");
+  ok(
+    hasExactPopupLabels(popup, ["temp", "temp2"]),
+    "Autocomplete popup displays original variable name when entering a complete variable name"
+  );
+
+  await setInputValueForAutocompletion(hud, "t");
+  ok(
+    hasPopupLabel(popup, "t"),
+    "Autocomplete popup displays generated variable name"
+  );
+
+  await setInputValueForAutocompletion(hud, "value.to");
+  ok(
+    hasPopupLabel(popup, "toString"),
+    "Autocomplete popup displays properties of original variable"
+  );
+
+  await setInputValueForAutocompletion(hud, "imported.imp");
+  ok(
+    hasPopupLabel(popup, "importResult"),
+    "Autocomplete popup displays properties of multi-part variable"
+  );
+
+  let tooltip = await setInputValueForGetterConfirmDialog(
+    toolbox,
+    hud,
+    "getter."
+  );
+  let labelEl = tooltip.querySelector(".confirm-label");
+  is(
+    labelEl.textContent,
+    "Invoke getter getter to retrieve the property list?",
+    "Dialog has expected text content"
+  );
+
+  info(
+    "Check that getter confirmation on a variable that maps to two getters invokes both getters"
+  );
+  let onPopUpOpen = popup.once("popup-opened");
+  EventUtils.synthesizeKey("KEY_Tab");
+  await onPopUpOpen;
+  ok(popup.isOpen, "popup is open after Tab");
+  ok(hasPopupLabel(popup, "getterResult"), "popup has expected items");
+
+  info(
+    "Check that the getter confirmation dialog shows the original variable name"
+  );
+  tooltip = await setInputValueForGetterConfirmDialog(
+    toolbox,
+    hud,
+    "localWithGetter.value."
+  );
+  labelEl = tooltip.querySelector(".confirm-label");
+  is(
+    labelEl.textContent,
+    "Invoke getter localWithGetter.value to retrieve the property list?",
+    "Dialog has expected text content"
+  );
+
+  info(
+    "Check that hitting Tab does invoke the getter and return its properties"
+  );
+  onPopUpOpen = popup.once("popup-opened");
+  EventUtils.synthesizeKey("KEY_Tab");
+  await onPopUpOpen;
+  ok(popup.isOpen, "popup is open after Tab");
+  ok(hasPopupLabel(popup, "then"), "popup has expected items");
+  info("got popup items: " + JSON.stringify(getAutocompletePopupLabels(popup)));
+
+  info(
+    "Check that authorizing an original getter applies to the generated getter"
+  );
+  await setInputValueForAutocompletion(hud, "o.value.");
+  ok(hasPopupLabel(popup, "then"), "popup has expected items");
+
+  await setInputValueForAutocompletion(hud, "(temp + temp2).");
+  ok(
+    hasPopupLabel(popup, "toFixed"),
+    "Autocomplete popup displays properties of eagerly evaluated value"
+  );
+  info("got popup items: " + JSON.stringify(getAutocompletePopupLabels(popup)));
+
+  info("Disabling map scopes");
+  dbg.actions.toggleMapScopes();
+  await setInputValueForAutocompletion(hud, "tem");
+  const autocompleteLabels = getAutocompletePopupLabels(popup);
+  ok(
+    !autocompleteLabels.includes("temp"),
+    "Autocomplete popup does not display mapped variables when mapping is disabled"
+  );
+
+  await resume(dbg);
+});
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/_jsterm.ini firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/_jsterm.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/_jsterm.ini	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/_jsterm.ini	2021-10-20 19:28:16.000000000 +0000
@@ -4,6 +4,10 @@
 support-files =
   head.js
   test-autocomplete-in-stackframe.html
+  test-autocomplete-mapped.html
+  test-autocomplete-mapped.js
+  test-autocomplete-mapped.js.map
+  test-autocomplete-mapped.src.js
   test-block-action.html
   test-block-action-style.css
   test-console-evaluation-context-selector-child.html
@@ -54,6 +58,7 @@
 skip-if = (os == "win" && os_version == "6.1") # Bug 1620521
 [browser_jsterm_autocomplete_inside_text.js]
 skip-if = (os == "win" && os_version == "6.1") # Bug 1620521
+[browser_jsterm_autocomplete_mapped_variables.js]
 [browser_jsterm_autocomplete_native_getters.js]
 [browser_jsterm_autocomplete_nav_and_tab_key.js]
 [browser_jsterm_autocomplete_null.js]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/test-autocomplete-mapped.html firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/test-autocomplete-mapped.html
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/test-autocomplete-mapped.html	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/test-autocomplete-mapped.html	2021-10-20 19:28:16.000000000 +0000
@@ -0,0 +1,15 @@
+<!DOCTYPE HTML>
+<html dir="ltr" lang="en">
+  <head>
+    <meta charset="utf8">
+    <!--
+    - Any copyright is dedicated to the Public Domain.
+    - http://creativecommons.org/publicdomain/zero/1.0/
+    -->
+    <title>Test for autocomplete displaying mapped variable names</title>
+    <script src="test-autocomplete-mapped.js"></script>
+  </head>
+  <body>
+    <p>Hello world!</p>
+  </body>
+</html>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/test-autocomplete-mapped.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/test-autocomplete-mapped.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/test-autocomplete-mapped.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/test-autocomplete-mapped.js	2021-10-20 19:28:16.000000000 +0000
@@ -0,0 +1,18 @@
+"use strict";
+const i = { x: { y: { importResult: true } } };
+const j = { get x() { return blackbox({ get y() { return blackbox({ getterResult: 1 }); } }); } };
+
+const blackbox = x=>[x].pop();
+
+function firstCall() {
+  const t = 42;
+  const u = i.x.y;
+  const v = j.x.y.getterResult;
+  const o = {
+    get value() {
+      return blackbox(Promise.resolve());
+    }
+  };
+  debugger;
+}
+//# sourceMappingURL=test-autocomplete-mapped.js.map
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/test-autocomplete-mapped.js.map firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/test-autocomplete-mapped.js.map
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/test-autocomplete-mapped.js.map	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/test-autocomplete-mapped.js.map	2021-10-20 19:28:16.000000000 +0000
@@ -0,0 +1 @@
+{"version":3,"sources":["test-autocomplete-mapped.src.js"],"names":["blackbox","x","pop","firstCall","value","imported","getter","localWithGetter","Promise","resolve"],"mappings":"AAAA;AACA,MAAS,CAAQ;AACjB,MAAS,CAAM;;AAEf,MAAMA,WAAWC,GAAK,CAACA,GAAGC;;AAE1B,SAASC;EACP,MAAMC,IAAQ;EACd,MAAMC,IAAO,KAAQ;EACrB,MAAMC,IAAQ,kBAAM;EACpB,MAAMC,IAAkB;IACtBH;MAAc,OAAOJ,SAASQ,QAAQC;;;EAGxC","file":"test-autocomplete-mapped.js"}
\ No newline at end of file
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/test-autocomplete-mapped.src.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/test-autocomplete-mapped.src.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/test-autocomplete-mapped.src.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/test-autocomplete-mapped.src.js	2021-10-20 19:28:16.000000000 +0000
@@ -0,0 +1,16 @@
+"use strict";
+import { imported } from "somewhere";
+import { getter } from "somewhere-else";
+
+const blackbox = x => [x].pop();
+
+function firstCall() {
+  const value = 42;
+  const temp = imported;
+  const temp2 = getter;
+  const localWithGetter = {
+    get value() { return blackbox(Promise.resolve()); }
+  };
+  const unmapped = 100;
+  debugger;
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/test_hsts-invalid-headers.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/test_hsts-invalid-headers.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/test/browser/test_hsts-invalid-headers.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/test/browser/test_hsts-invalid-headers.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,14 +1,13 @@
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain; charset=utf-8", false);
 
   let issue;
   switch (request.queryString) {
     case "badSyntax":
-      response.setHeader("Strict-Transport-Security", "\"");
+      response.setHeader("Strict-Transport-Security", '"');
       issue = "is not syntactically correct.";
       break;
     case "noMaxAge":
@@ -24,13 +23,17 @@
       issue = "includes an invalid max-age directive.";
       break;
     case "multipleIncludeSubDomains":
-      response.setHeader("Strict-Transport-Security",
-                         "includeSubDomains; includeSubDomains");
+      response.setHeader(
+        "Strict-Transport-Security",
+        "includeSubDomains; includeSubDomains"
+      );
       issue = "includes multiple includeSubDomains directives.";
       break;
     case "multipleMaxAge":
-      response.setHeader("Strict-Transport-Security",
-                         "max-age=444; max-age=999");
+      response.setHeader(
+        "Strict-Transport-Security",
+        "max-age=444; max-age=999"
+      );
       issue = "includes multiple max-age directives.";
       break;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/webconsole.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/webconsole.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/client/webconsole/webconsole.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/client/webconsole/webconsole.js	2021-10-20 19:28:16.000000000 +0000
@@ -322,6 +322,11 @@
     return null;
   }
 
+  getMappedVariables() {
+    const { toolbox } = this;
+    return toolbox?.getPanel("jsdebugger")?.getMappedVariables();
+  }
+
   get parserService() {
     if (this._parserService) {
       return this._parserService;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/server/actors/webconsole.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/server/actors/webconsole.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/server/actors/webconsole.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/server/actors/webconsole.js	2021-10-20 19:28:16.000000000 +0000
@@ -198,11 +198,6 @@
         "last-pb-context-exited"
       );
     }
-
-    this.traits = {
-      // Supports retrieving blocked urls
-      blockedUrls: true,
-    };
   },
   /**
    * Debugger instance.
@@ -240,12 +235,6 @@
   conn: null,
 
   /**
-   * List of supported features by the console actor.
-   * @type object
-   */
-  traits: null,
-
-  /**
    * The global we work with (this can be a Window, a Worker global or even a Sandbox
    * for processes and addons).
    *
@@ -794,7 +783,6 @@
     return {
       startedListeners: startedListeners,
       nativeConsoleAPI: this.hasNativeConsoleAPI(this.global),
-      traits: this.traits,
     };
   },
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/server/tests/chrome/inspector-delay-image-response.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/server/tests/chrome/inspector-delay-image-response.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/server/tests/chrome/inspector-delay-image-response.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/server/tests/chrome/inspector-delay-image-response.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -5,16 +5,18 @@
 
 // A 1x1 PNG image.
 // Source: https://commons.wikimedia.org/wiki/File:1x1.png (Public Domain)
-const IMAGE = atob("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
-  "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=");
+const IMAGE = atob(
+  "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
+    "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII="
+);
 
 // To avoid GC.
 let timer = null;
 
 function handleRequest(request, response) {
-  let query = {};
+  const query = {};
   request.queryString.split("&").forEach(function(val) {
-    let [name, value] = val.split("=");
+    const [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
@@ -33,8 +35,12 @@
   const nsITimer = Components.interfaces.nsITimer;
 
   timer = Components.classes["@mozilla.org/timer;1"].createInstance(nsITimer);
-  timer.initWithCallback(function() {
-    response.write(IMAGE);
-    response.finish();
-  }, query.delay, nsITimer.TYPE_ONE_SHOT);
+  timer.initWithCallback(
+    function() {
+      response.write(IMAGE);
+      response.finish();
+    },
+    query.delay,
+    nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/commands/inspected-window/tests/inspectedwindow-reload-target.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/commands/inspected-window/tests/inspectedwindow-reload-target.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/commands/inspected-window/tests/inspectedwindow-reload-target.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/commands/inspected-window/tests/inspectedwindow-reload-target.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,9 +1,9 @@
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 
 function handleRequest(request, response) {
-  let params = new URLSearchParams(request.queryString);
+  const params = new URLSearchParams(request.queryString);
 
-  switch(params.get("test")) {
+  switch (params.get("test")) {
     case "cache":
       handleCacheTestRequest(request, response);
       break;
@@ -22,7 +22,9 @@
   response.setHeader("Content-Type", "text/plain; charset=UTF-8", false);
 
   if (request.hasHeader("pragma") && request.hasHeader("cache-control")) {
-    response.write(`${request.getHeader("pragma")}:${request.getHeader("cache-control")}`);
+    response.write(
+      `${request.getHeader("pragma")}:${request.getHeader("cache-control")}`
+    );
   } else {
     response.write("empty cache headers");
   }
@@ -47,11 +49,12 @@
   if (frames > 0) {
     // Output an iframe in seamless mode, so that there is an higher chance that in case
     // of test failures we get a screenshot where the nested iframes are all visible.
-    content = `<iframe seamless src="?test=injected-script&frames=${frames - 1}"></iframe>`;
+    content = `<iframe seamless src="?test=injected-script&frames=${frames -
+      1}"></iframe>`;
   } else {
     // Output an about:srcdoc frame to be sure that inspectedWindow.eval is able to
     // evaluate js code into it.
-    let srcdoc = `
+    const srcdoc = `
       <pre>injected script NOT executed</pre>
       <script>window.pageScriptExecutedFirst = true</script>
     `;
@@ -80,4 +83,4 @@
       </body>
     </html>
   `);
-}
\ No newline at end of file
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/commands/resource/tests/sse_backend.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/commands/resource/tests/sse_backend.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/commands/resource/tests/sse_backend.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/commands/resource/tests/sse_backend.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,6 +1,6 @@
-function handleRequest(request, response) {
-    response.processAsync();
-    response.setHeader("Content-Type", "text/event-stream");
-    response.write("data: Why so serious?\n\n");
-    response.finish();
-}
+function handleRequest(request, response) {
+  response.processAsync();
+  response.setHeader("Content-Type", "text/event-stream");
+  response.write("data: Why so serious?\n\n");
+  response.finish();
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/commands/target/tests/incremental-js-value-script.sjs firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/commands/target/tests/incremental-js-value-script.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/commands/target/tests/incremental-js-value-script.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/commands/target/tests/incremental-js-value-script.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,11 +1,11 @@
 function handleRequest(request, response) {
-  let Etag = '"4d881ab-b03-435f0a0f9ef00"';
-  let IfNoneMatch = request.hasHeader("If-None-Match")
-                    ? request.getHeader("If-None-Match")
-                    : "";
+  const Etag = '"4d881ab-b03-435f0a0f9ef00"';
+  const IfNoneMatch = request.hasHeader("If-None-Match")
+    ? request.getHeader("If-None-Match")
+    : "";
 
   var counter = getState("cache-counter") || 1;
-  let page = "<script>var jsValue = '" + counter + "';</script>" + counter;
+  const page = "<script>var jsValue = '" + counter + "';</script>" + counter;
 
   setState("cache-counter", "" + (parseInt(counter) + 1));
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/compatibility/dataset/browsers.json firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/compatibility/dataset/browsers.json
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/compatibility/dataset/browsers.json	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/compatibility/dataset/browsers.json	2021-10-20 19:28:16.000000000 +0000
@@ -1 +1 @@
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\ No newline at end of file
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/compatibility/dataset/css-properties.json firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/compatibility/dataset/css-properties.json
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/compatibility/dataset/css-properties.json	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/compatibility/dataset/css-properties.json	2021-10-20 19:28:16.000000000 +0000
@@ -1 +1 @@
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The syntax was completely different from this one and is not documented here."},"opera":[{"version_added":"40"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"41"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"9.1"},{"prefix":"-webkit-","version_added":"6"}],"safari_ios":[{"version_added":"9.3"},{"prefix":"-webkit-","version_added":"6"}],"samsunginternet_android":{"version_added":"6.0"},"webview_android":[{"version_added":"53"},{"prefix":"-webkit-","version_added":"4.4"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"svg":{"__compat":{"description":"On SVG elements","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"35"},"firefox_android":{"version_added":"35"},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"flex-basis":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-basis","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-basis-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"22"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":[{"version_added":"12"},{"prefix":"-webkit-","version_added":"12"}],"firefox":[{"version_added":"22","notes":"Since Firefox 28, multi-line flexbox is supported."},{"prefix":"-webkit-","version_added":"49"}],"firefox_android":[{"version_added":"22","notes":"Since Firefox 28, multi-line flexbox is supported."},{"prefix":"-webkit-","version_added":"49"}],"ie":{"version_added":"11","notes":"When a non-<code>auto</code> <code>flex-basis</code> is specified, Internet Explorer 10 and 11 always uses a <code>content-box</code> box model to calculate the size of a flex item, even if <a href='https://developer.mozilla.org/docs/Web/CSS/box-sizing'><code>box-sizing: border-box</code></a> is applied to the element. See <a href='https://github.com/philipwalton/flexbugs#7-flex-basis-doesnt-account-for-box-sizingborder-box'>Flexbug #7</a> for more info."},"opera":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"samsunginternet_android":[{"version_added":"2.0"},{"prefix":"-webkit-","version_added":"1.5"}],"webview_android":[{"version_added":"4.4"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"auto":{"__compat":{"description":"<code>auto</code>","support":{"chrome":{"version_added":"22"},"chrome_android":{"version_added":"25"},"edge":{"version_added":"12"},"firefox":{"version_added":"22"},"firefox_android":{"version_added":"22"},"ie":{"version_added":"11"},"opera":{"version_added":"12.1"},"opera_android":{"version_added":"12.1"},"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"samsunginternet_android":{"version_added":"1.5"},"webview_android":{"version_added":"≤37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"content":{"__compat":{"description":"<code>content</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":"12","version_removed":"79"},"firefox":{"version_added":"61"},"firefox_android":{"version_added":"61"},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"max-content":{"__compat":{"support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":[{"version_added":"66"},{"version_added":"22","prefix":"-moz-"}],"firefox_android":[{"version_added":"66"},{"version_added":"22","prefix":"-moz-"}],"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"min-content":{"__compat":{"support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":[{"version_added":"66"},{"version_added":"22","prefix":"-moz-"}],"firefox_android":[{"version_added":"66"},{"version_added":"22","prefix":"-moz-"}],"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"flex-direction":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-direction","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-direction-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"21"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":[{"version_added":"12"},{"prefix":"-webkit-","version_added":"12"}],"firefox":[{"version_added":"20","partial_implementation":true,"notes":["Since Firefox 28, multi-line flexbox is supported.","Before Firefox 81, overflow with <code>*-reverse</code> is unsupported. See <a href='https://bugzil.la/1042151'>bug 1042151</a>."]},{"prefix":"-webkit-","version_added":"49"}],"firefox_android":[{"version_added":"20","partial_implementation":true,"notes":["Since Firefox 28, multi-line flexbox is supported.","Before Firefox 81, overflow with <code>*-reverse</code> is unsupported. See <a href='https://bugzil.la/1042151'>bug 1042151</a>."]},{"prefix":"-webkit-","version_added":"49"}],"ie":[{"version_added":"11"},{"prefix":"-ms-","version_added":"10"}],"opera":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"samsunginternet_android":[{"version_added":"2.0"},{"prefix":"-webkit-","version_added":"1.5"}],"webview_android":[{"version_added":"4.4"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"flex-flow":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-flow","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-flow-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"21"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":{"version_added":"12"},"firefox":[{"version_added":"28"},{"prefix":"-webkit-","version_added":"49"}],"firefox_android":[{"version_added":"28"},{"prefix":"-webkit-","version_added":"49"}],"ie":{"version_added":"11"},"opera":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"samsunginternet_android":[{"version_added":"2.0"},{"prefix":"-webkit-","version_added":"1.5"}],"webview_android":[{"version_added":"4.4"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"flex-grow":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-grow","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-grow-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"22"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":[{"version_added":"12"},{"prefix":"-webkit-","version_added":"12"}],"firefox":{"version_added":"20","notes":"Since 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<code>0</code>."},"ie":{"version_added":false},"opera":{"version_added":"36"},"opera_android":{"version_added":"36"},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":"5.0"},"webview_android":{"version_added":"49"}},"status":{"experimental":false,"standard_track":false,"deprecated":false}}}},"flex-shrink":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-shrink","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-shrink-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"22"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":[{"version_added":"12"},{"prefix":"-webkit-","version_added":"12"}],"firefox":[{"version_added":"20","notes":["Since Firefox 28, multi-line flexbox is supported.","Before Firefox 32, Firefox wasn't able to animate values starting or stopping at <code>0</code>."]},{"prefix":"-webkit-","version_added":"49"}],"firefox_android":[{"version_added":"20","notes":["Since Firefox 28, multi-line flexbox is supported.","Before Firefox 32, Firefox wasn't able to animate values starting or stopping at <code>0</code>."]},{"prefix":"-webkit-","version_added":"49"}],"ie":{"version_added":"10","notes":"Internet Explorer 10 uses <code>0</code> instead of <code>1</code> as the initial value for the <code>flex-shrink</code> property. 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See <a href='https://github.com/philipwalton/flexbugs#6-the-default-flex-value-has-changed'>Flexbug #6</a> for more info."},"opera":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"8"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"8"}],"samsunginternet_android":[{"version_added":"2.0"},{"prefix":"-webkit-","version_added":"1.5"}],"webview_android":[{"version_added":"4.4"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"flex-wrap":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-wrap","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-wrap-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"21"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":{"version_added":"12"},"firefox":{"version_added":"28"},"firefox_android":{"version_added":"52"},"ie":{"version_added":"11","partial_implementation":true,"notes":"Partial support due to large number of bugs present. 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This can be worked around by using the longhand properties instead of the shorthand. See <a href='https://github.com/philipwalton/flexbugs#8-flex-basis-doesnt-support-calc'>Flexbug #8</a> for more info.","Internet Explorer 11 considers a unitless value in the <code>flex-basis</code> part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the <code>flex-basis</code> part of the <code>flex</code> shorthand value. See <a href='https://github.com/philipwalton/flexbugs#4-flex-shorthand-declarations-with-unitless-flex-basis-values-are-ignored'>Flexbug #4</a> for more info."]},{"prefix":"-ms-","version_added":"10","notes":["Internet Explorer 10 and 11 ignore uses of <a href='https://developer.mozilla.org/docs/Web/CSS/calc'><code>calc()</code></a> in the <code>flex-basis</code> part of the <code>flex</code> syntax. This can be worked around by using the longhand properties instead of the shorthand. See <a href='https://github.com/philipwalton/flexbugs#8-flex-basis-doesnt-support-calc'>Flexbug #8</a> for more info.","Internet Explorer 10 and 11 consider a unitless value in the <code>flex-basis</code> part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the <code>flex-basis</code> part of the <code>flex</code> shorthand value. See <a href='https://github.com/philipwalton/flexbugs#4-flex-shorthand-declarations-with-unitless-flex-basis-values-are-ignored'>Flexbug #4</a> for more info."]}],"opera":{"version_added":"12.1"},"opera_android":{"version_added":"12.1"},"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"samsunginternet_android":[{"version_added":"2.0"},{"prefix":"-webkit-","version_added":"1.5"}],"webview_android":[{"version_added":"4.4"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"float":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/float","spec_url":"https://drafts.csswg.org/css-logical/#float-clear","support":{"chrome":{"version_added":"1"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"12"},"firefox":{"version_added":"1"},"firefox_android":{"version_added":"4"},"ie":{"version_added":"4"},"opera":{"version_added":"7"},"opera_android":{"version_added":"10.1"},"safari":{"version_added":"1"},"safari_ios":{"version_added":"1"},"samsunginternet_android":{"version_added":"1.0"},"webview_android":{"version_added":"1"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"flow_relative_values":{"__compat":{"description":"Flow-relative values <code>inline-start</code> and <code>inline-end</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"55"},"firefox_android":{"version_added":"55"},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"font-family":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/font-family","spec_url":["https://drafts.csswg.org/css-fonts/#generic-font-families","https://drafts.csswg.org/css-fonts/#font-family-prop"],"support":{"chrome":{"version_added":"1"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"12"},"firefox":{"version_added":"1","notes":"Not supported on <code>option</code> elements. 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<code>left</code>, and <code>right</code> values for block alignment","support":{"chrome":{"prefix":"-webkit-","version_added":"1"},"chrome_android":{"prefix":"-webkit-","version_added":"18"},"edge":{"prefix":"-webkit-","version_added":"79"},"firefox":{"prefix":"-moz-","version_added":"1"},"firefox_android":{"prefix":"-moz-","version_added":"4"},"ie":{"version_added":false},"opera":{"prefix":"-webkit-","version_added":"15"},"opera_android":{"prefix":"-webkit-","version_added":"14"},"safari":[{"prefix":"-webkit-","version_added":"1.3"},{"prefix":"-khtml-","version_added":"1"}],"safari_ios":[{"prefix":"-webkit-","version_added":"1"},{"prefix":"-khtml-","version_added":"1"}],"samsunginternet_android":{"version_added":"1.0","prefix":"-webkit-"},"webview_android":{"prefix":"-webkit-","version_added":"37"}},"status":{"experimental":false,"standard_track":false,"deprecated":true}}},"flow_relative_values_start_and_end":{"__compat":{"description":"Flow-relative values <code>start</code> and <code>end</code>","support":{"chrome":{"version_added":"1"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"79"},"firefox":{"version_added":"1"},"firefox_android":{"version_added":"4"},"ie":{"version_added":false},"opera":{"version_added":"15"},"opera_android":{"version_added":"14"},"safari":{"version_added":"3.1"},"safari_ios":{"version_added":"2"},"samsunginternet_android":{"version_added":"1.0"},"webview_android":{"version_added":"37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"justify-all":{"__compat":{"description":"<code>justify-all</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"match-parent":{"__compat":{"description":"<code>match-parent</code>","support":{"chrome":{"version_added":"16"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"79"},"firefox":{"version_added":"40"},"firefox_android":{"version_added":"40"},"ie":{"version_added":false},"opera":{"version_added":"15"},"opera_android":{"version_added":"14"},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":"1.0"},"webview_android":{"version_added":"37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"string":{"__compat":{"description":"Character-based alignment in a table column (<code>&lt;string&gt;</code> value)","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":true,"standard_track":true,"deprecated":false}}}},"text-combine-upright":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-combine-upright","spec_url":"https://drafts.csswg.org/css-writing-modes/#text-combine-upright","support":{"chrome":[{"version_added":"48"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"9","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}],"chrome_android":[{"version_added":"48"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"18","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}],"edge":[{"version_added":"15","version_removed":"79"},{"version_added":"12","version_removed":"79","alternative_name":"-ms-text-combine-horizontal"}],"firefox":{"version_added":"48","notes":"Before version 81, Firefox implemented the property as animatable. This was corrected to spec in 81."},"firefox_android":{"version_added":"48","notes":"Before version 81, Firefox implemented the property as animatable. This was corrected to spec in 81."},"ie":{"version_added":"11","alternative_name":"-ms-text-combine-horizontal"},"opera":[{"version_added":"35"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"15","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}],"opera_android":[{"version_added":"35"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"14","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}],"safari":{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"5.1","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."},"safari_ios":{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"5","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."},"samsunginternet_android":[{"version_added":"5.0"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"1.0","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}],"webview_android":[{"version_added":"48"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"≤37","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"digits":{"__compat":{"description":"<code>digits</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":[{"version_added":"15","version_removed":"79"},{"version_added":"12","version_removed":"79","alternative_name":"-ms-text-combine-horizontal"}],"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":"11","alternative_name":"-ms-text-combine-horizontal"},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"text-decoration-color":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-color","spec_url":"https://drafts.csswg.org/css-text-decor/#text-decoration-color-property","support":{"chrome":{"version_added":"57"},"chrome_android":{"version_added":"57"},"edge":{"version_added":"79"},"firefox":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"firefox_android":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"8"}],"safari_ios":[{"version_added":"12.2"},{"prefix":"-webkit-","version_added":"8"}],"samsunginternet_android":{"version_added":"7.0"},"webview_android":{"version_added":"57"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"text-decoration-line":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-line","spec_url":"https://drafts.csswg.org/css-text-decor/#text-decoration-line-property","support":{"chrome":{"version_added":"57"},"chrome_android":{"version_added":"57"},"edge":{"version_added":"79"},"firefox":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"firefox_android":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"8"}],"safari_ios":[{"version_added":"12.2"},{"prefix":"-webkit-","version_added":"8"}],"samsunginternet_android":{"version_added":"7.0"},"webview_android":{"version_added":"57"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"blink":{"__compat":{"description":"<code>blink</code>","support":{"chrome":{"version_added":"57","notes":"The <code>blink</code> value does not have any effect."},"chrome_android":{"version_added":"57","notes":"The <code>blink</code> value does not have any effect."},"edge":{"version_added":"79","notes":"The <code>blink</code> value does not have any effect."},"firefox":{"version_added":"26","notes":"The <code>blink</code> value does not have any effect."},"firefox_android":{"version_added":"26","notes":"The <code>blink</code> value does not have any effect."},"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":{"version_added":"8"},"safari_ios":{"version_added":"8"},"samsunginternet_android":{"version_added":"7.0","notes":"The <code>blink</code> value does not have any effect."},"webview_android":{"version_added":"57","notes":"The <code>blink</code> value does not have any effect."}},"status":{"experimental":false,"standard_track":true,"deprecated":true}}}},"text-decoration-skip-ink":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-skip-ink","spec_url":"https://drafts.csswg.org/css-text-decor-4/#text-decoration-skip-ink-property","support":{"chrome":{"version_added":"64"},"chrome_android":{"version_added":"64"},"edge":{"version_added":"79"},"firefox":{"version_added":"70"},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":"50"},"opera_android":{"version_added":"46"},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":"9.0"},"webview_android":{"version_added":"64"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"all":{"__compat":{"description":"<code>all</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"75"},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"text-decoration-skip":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-skip","spec_url":"https://drafts.csswg.org/css-text-decor-4/#text-decoration-skipping","support":{"chrome":{"version_added":"57","version_removed":"64","notes":"Only 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value."}},"status":{"experimental":true,"standard_track":true,"deprecated":false}}},"text-decoration-style":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-style","spec_url":"https://drafts.csswg.org/css-text-decor/#text-decoration-style-property","support":{"chrome":{"version_added":"57"},"chrome_android":{"version_added":"57"},"edge":{"version_added":"79"},"firefox":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"firefox_android":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"8"}],"safari_ios":[{"version_added":"12.2"},{"prefix":"-webkit-","version_added":"8"}],"samsunginternet_android":{"version_added":"7.0"},"webview_android":{"version_added":"57"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"wavy":{"__compat":{"description":"<code>wavy</code>","support":{"chrome":{"version_added":"57"},"chrome_android":{"version_added":"57"},"edge":{"version_added":"79"},"firefox":{"version_added":"6"},"firefox_android":{"version_added":"6"},"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":{"version_added":"8"},"safari_ios":{"version_added":"8"},"samsunginternet_android":{"version_added":"7.0"},"webview_android":{"version_added":"57"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"text-decoration-thickness":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-thickness","spec_url":"https://drafts.csswg.org/css-text-decor-4/#text-decoration-width-property","support":{"chrome":[{"version_added":"89"},{"version_added":"87","version_removed":"89","partial_implementation":true,"notes":"The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>Chromium bug 1154537</a>."}],"chrome_android":[{"version_added":"89"},{"version_added":"87","version_removed":"89","partial_implementation":true,"notes":"The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>Chromium bug 1154537</a>."}],"edge":[{"version_added":"89"},{"version_added":"87","version_removed":"89","partial_implementation":true,"notes":"The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>Chromium bug 1154537</a>."}],"firefox":[{"version_added":"70"},{"version_added":"69","alternative_name":"text-decoration-width","flags":[{"type":"preference","name":"layout.css.text-decoration-width.enabled","value_to_set":"true"}]}],"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":[{"version_added":"75"},{"version_added":"73","version_removed":"75","partial_implementation":true,"notes":"The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>Chromium bug 1154537</a>."}],"opera_android":{"version_added":"63"},"safari":{"version_added":"12.1"},"safari_ios":{"version_added":"12.2"},"samsunginternet_android":{"version_added":"15.0"},"webview_android":[{"version_added":"89"},{"version_added":"87","version_removed":"89","partial_implementation":true,"notes":"The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>Chromium bug 1154537</a>."}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"percentage":{"__compat":{"description":"percentage 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Experimental Web Platform Features","value_to_set":"true"}],"notes":"<code>inter-word</code> and <code>distribute</code> (deprecated) values are supported, but <code>distribute</code> behavior is buggy."},"chrome_android":{"version_added":"32","flags":[{"type":"preference","name":"Enable Experimental Web Platform Features","value_to_set":"true"}],"notes":"<code>inter-word</code> and <code>distribute</code> (deprecated) values are supported, but <code>distribute</code> behavior is buggy."},"edge":{"version_added":"12","notes":"Standard values <code>inter-character</code> and <code>none</code> are supported. The deprecated <code>distribute</code> value is also supported."},"firefox":{"version_added":"55"},"firefox_android":{"version_added":"55"},"ie":{"version_added":"11","notes":"Standard values <code>inter-character</code> and <code>none</code> are supported. The deprecated <code>distribute</code> value is also supported."},"opera":{"version_added":"19","flags":[{"type":"preference","name":"Enable Experimental Web Platform Features","value_to_set":"true"}],"notes":"<code>inter-word</code> and <code>distribute</code> (deprecated) values are supported, but <code>distribute</code> behavior is buggy."},"opera_android":{"version_added":"19","flags":[{"type":"preference","name":"Enable Experimental Web Platform Features","value_to_set":"true"}],"notes":"<code>inter-word</code> and <code>distribute</code> (deprecated) values are supported, but <code>distribute</code> behavior is buggy."},"safari":{"version_added":false,"notes":"See <a href='https://webkit.org/b/99945'>bug 9945</a>."},"safari_ios":{"version_added":false,"notes":"See <a href='https://webkit.org/b/99945'>bug 9945</a>."},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"text-orientation":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-orientation","spec_url":"https://drafts.csswg.org/css-writing-modes/#text-orientation","support":{"chrome":[{"version_added":"48"},{"prefix":"-webkit-","version_added":"11"}],"chrome_android":[{"version_added":"48"},{"prefix":"-webkit-","version_added":"18"}],"edge":[{"version_added":"79"},{"prefix":"-webkit-","version_added":"79"}],"firefox":{"version_added":"41"},"firefox_android":{"version_added":"41"},"ie":{"version_added":false},"opera":[{"version_added":"35"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"35"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"14"},{"prefix":"-webkit-","version_added":"5.1"}],"safari_ios":[{"version_added":"14"},{"prefix":"-webkit-","version_added":"5"}],"samsunginternet_android":[{"version_added":"5.0"},{"prefix":"-webkit-","version_added":"1.0"}],"webview_android":[{"version_added":"48"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"sideways":{"__compat":{"description":"<code>sideways</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"44","notes":"<code>sideways-right</code> has become an alias of <code>sideways</code>."},"firefox_android":{"version_added":"44","notes":"<code>sideways-right</code> has become an alias of <code>sideways</code>."},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"text-overflow":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-overflow","spec_url":"https://drafts.csswg.org/css-overflow/#text-overflow","support":{"chrome":{"version_added":"1"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"12"},"firefox":{"version_added":"7","notes":"Until Firefox 10, handling of <code>text-overflow</code> on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox 10, if only one value was specified (such as <code>text-overflow: ellipsis;</code>), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction."},"firefox_android":{"version_added":"7","notes":"Until Firefox 10, handling of <code>text-overflow</code> on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox 10, if only one value was specified (such as <code>text-overflow: ellipsis;</code>), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction."},"ie":[{"version_added":"6"},{"prefix":"-ms-","version_added":"8"}],"opera":[{"version_added":"11"},{"prefix":"-o-","version_added":"9","version_removed":"15"}],"opera_android":[{"version_added":"11"},{"prefix":"-o-","version_added":"10.1","version_removed":"14"}],"safari":{"version_added":"1.3"},"safari_ios":{"version_added":"1"},"samsunginternet_android":{"version_added":"1.0"},"webview_android":{"version_added":"≤37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"fade_function":{"__compat":{"description":"<code>fade()</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":true,"standard_track":true,"deprecated":false}}},"fade_value":{"__compat":{"description":"<code>fade</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"string":{"__compat":{"description":"&lt;string&gt;","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"9"},"firefox_android":{"version_added":"9"},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"two_value_syntax":{"__compat":{"description":"Two-value syntax","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"9"},"firefox_android":{"version_added":"9"},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"text-rendering":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-rendering","spec_url":"https://svgwg.org/svg2-draft/painting.html#TextRenderingProperty","support":{"chrome":{"version_added":"4","notes":["This property is only supported on Windows and Linux.","Initial versions had bugs on Windows and Linux that broke <a href='https://crbug.com/114719'>font substitition</a>, <a href='https://crbug.com/51973'>small-caps</a>, <a href='https://crbug.com/55458'>letter-spacing</a> or caused <a href='https://crbug.com/149548'>text to overlap</a>."]},"chrome_android":{"version_added":"18","notes":["This property is only supported on Windows and Linux.","Initial versions had bugs on Windows and Linux that broke <a href='https://crbug.com/114719'>font substitition</a>, <a href='https://crbug.com/51973'>small-caps</a>, <a href='https://crbug.com/55458'>letter-spacing</a> or caused <a href='https://crbug.com/149548'>text to overlap</a>."]},"edge":{"version_added":"79","notes":["This property is only supported on Windows and Linux.","Initial versions had bugs on Windows and Linux that broke <a href='https://crbug.com/114719'>font substitition</a>, <a href='https://crbug.com/51973'>small-caps</a>, <a href='https://crbug.com/55458'>letter-spacing</a> or caused <a href='https://crbug.com/149548'>text to overlap</a>."]},"firefox":{"version_added":"1","notes":["This property is only supported on Windows and Linux.","The <code>optimizeSpeed</code> option has no effect on Firefox 4 because the standard code for text rendering is already fast and there is not a faster code path at this time. See <a href='https://bugzil.la/595688'>bug 595688</a> for details."]},"firefox_android":{"version_added":"46"},"ie":{"version_added":false},"opera":{"version_added":"15"},"opera_android":{"version_added":"14"},"safari":{"version_added":"5"},"safari_ios":{"version_added":"4.2"},"samsunginternet_android":{"version_added":"1.0","notes":"This property is only supported on Windows and Linux. Samsung Internet is not on Windows or Linux."},"webview_android":{"version_added":"3","notes":"From version 3 to 4.3, there is a serious bug where <code>text-rendering: optimizeLegibility</code> causes custom web fonts to not render. This was fixed in version 4.4."}},"status":{"experimental":false,"standard_track":false,"deprecated":false}},"auto":{"__compat":{"description":"<code>auto</code>","support":{"chrome":{"version_added":"4","notes":"Chrome treats <code>auto</code> as <code>optimizeSpeed</code>."},"chrome_android":{"version_added":"18","notes":"Chrome treats <code>auto</code> as <code>optimizeSpeed</code>."},"edge":{"version_added":"79","notes":"Edge treats <code>auto</code> as <code>optimizeSpeed</code>."},"firefox":{"version_added":"1","notes":"If the font size is 20 pixels or higher, Firefox treats <code>auto</code> as <code>optimizeLegibility</code>. For smaller text, Firefox treats <code>auto</code> as <code>optimizeSpeed</code>. The 20-pixel threshold can be changed with the <code>browser.display.auto_quality_min_font_size</code> preference."},"firefox_android":{"version_added":"46","notes":"If the font size is 20 pixels or higher, Firefox treats <code>auto</code> as <code>optimizeLegibility</code>. For smaller text, Firefox treats <code>auto</code> as <code>optimizeSpeed</code>. The 20-pixel threshold can be changed with the <code>browser.display.auto_quality_min_font_size</code> preference."},"ie":{"version_added":false},"opera":{"version_added":"15","notes":"Opera treats <code>auto</code> as <code>optimizeSpeed</code>."},"opera_android":{"version_added":"14","notes":"Opera treats <code>auto</code> as <code>optimizeSpeed</code>."},"safari":{"version_added":"5","notes":"Safari treats <code>auto</code> as <code>optimizeSpeed</code>. See <a href='https://webkit.org/b/41363'>WebKit bug 41363</a>."},"safari_ios":{"version_added":"4.2","notes":"Safari treats <code>auto</code> as <code>optimizeSpeed</code>. See <a href='https://webkit.org/b/41363'>WebKit bug 41363</a>."},"samsunginternet_android":{"version_added":"1.0","notes":"Samsung Internet treats <code>auto</code> as <code>optimizeSpeed</code>."},"webview_android":{"version_added":"≤37","notes":"WebView treats <code>auto</code> as <code>optimizeSpeed</code>."}},"status":{"experimental":false,"standard_track":false,"deprecated":false}}},"geometricPrecision":{"__compat":{"description":"<code>geometricPrecision</code>","support":{"chrome":{"version_added":"13","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"chrome_android":{"version_added":"18","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"edge":{"version_added":"79","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"firefox":{"version_added":"1","notes":"Firefox treats <code>geometricPrecision</code> the same as <code>optimizeLegibility</code>."},"firefox_android":{"version_added":"46","notes":"Firefox treats <code>geometricPrecision</code> the same as <code>optimizeLegibility</code>."},"ie":{"version_added":false},"opera":{"version_added":"15","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"opera_android":{"version_added":"14","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"safari":{"version_added":"6"},"safari_ios":{"version_added":"6"},"samsunginternet_android":{"version_added":"1.0","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"webview_android":{"version_added":"37","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."}},"status":{"experimental":false,"standard_track":false,"deprecated":false}}}},"text-shadow":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-shadow","spec_url":"https://drafts.csswg.org/css-text-decor/#text-shadow-property","support":{"chrome":{"version_added":"2"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"12"},"firefox":{"version_added":"3.5","notes":["Firefox versions before 57 have a bug whereby <a href='https://developer.mozilla.org/docs/Web/CSS/transition'><code>transition</code></a>s will not work when transitioning from a <code>text-shadow</code> with a color specified to a <code>text-shadow</code> without a color specified (<a href='https://bugzil.la/726550'>bug 726550</a>).","From Firefox 4, the blur radius is capped at 300 for performance reasons.","Firefox theoretically supports infinite text-shadows (don't try it).","If the <code>&lt;color&gt;</code> value is unspecified, then Firefox uses the value of the element's <a href='https://developer.mozilla.org/docs/Web/CSS/color'><code>color</code></a> property."]},"firefox_android":{"version_added":"4","notes":["Firefox versions before 57 have a bug whereby <a href='https://developer.mozilla.org/docs/Web/CSS/transition'><code>transition</code></a>s will not work when transitioning from a <code>text-shadow</code> with a color specified to a <code>text-shadow</code> without a color specified (<a href='https://bugzil.la/726550'>bug 726550</a>).","From Firefox 4, the blur radius is capped at 300 for performance reasons.","Firefox theoretically supports infinite text-shadows (don't try it).","If the <code>&lt;color&gt;</code> value is unspecified, then Firefox uses the value of the element's <a href='https://developer.mozilla.org/docs/Web/CSS/color'><code>color</code></a> property."]},"ie":{"version_added":"10"},"opera":{"version_added":"9.5","notes":["Opera supports a maximum of 6-9 text-shadows for performance reasons. The blur radius is limited to 100px.","Opera 9.5 to 10.1 adheres to the old, reverse painting order (in CSS2, the first specified shadow is on the bottom)."]},"opera_android":{"version_added":"14"},"safari":{"version_added":"1.1","notes":["In Safari, any shadows that do not explicitly specify a color are transparent.","Safari 1.1 to 3.2 only supports one text-shadow (displays the first shadow of a comma-separated list and ignores the rest). Safari 4.0 (WebKit 528) and later support multiple text-shadows."]},"safari_ios":{"version_added":"1","notes":["In Safari, any shadows that do not explicitly specify a color are transparent.","Safari iOS 1 and 2 only support one text-shadow (displays the first shadow of a comma-separated list and ignores the rest). Safari iOS 3 (WebKit 528) and later support multiple text-shadows."]},"samsunginternet_android":{"version_added":"1.0"},"webview_android":{"version_added":"37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"text-size-adjust":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-size-adjust","spec_url":"https://drafts.csswg.org/css-size-adjust/#adjustment-control","support":{"chrome":[{"version_added":"54"},{"prefix":"-webkit-","version_added":false,"notes":"Instead of ignoring the <code>-webkit-text-size-adjust</code> property, a bug prevents desktop Chrome users from zooming in or out. The bug was fixed after Chrome 26."}],"chrome_android":{"version_added":"54"},"edge":[{"version_added":"79"},{"prefix":"-webkit-","version_added":"12","version_removed":"79"}],"firefox":{"version_added":false},"firefox_android":[{"prefix":"-webkit-","version_added":"49"},{"prefix":"-moz-","version_added":"14"},{"prefix":"-webkit-","version_added":"44","flags":[{"type":"preference","name":"layout.css.prefixes.webkit","value_to_set":"true"}]}],"ie":{"version_added":false},"opera":{"version_added":"41"},"opera_android":{"version_added":"41"},"safari":[{"version_added":false},{"prefix":"-webkit-","version_added":false,"notes":"Instead of ignoring the <code>-webkit-text-size-adjust</code> property, a bug prevents desktop Safari users from zooming in or out. The bug was fixed after Safari 5."}],"safari_ios":{"prefix":"-webkit-","version_added":"1"},"samsunginternet_android":{"version_added":"6.0"},"webview_android":{"version_added":"54"}},"status":{"experimental":true,"standard_track":true,"deprecated":false}},"percentages":{"__compat":{"description":"<code>&lt;percentage&gt;</code>","support":{"chrome":{"version_added":"54"},"chrome_android":{"version_added":"54"},"edge":{"version_added":"12"},"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":"41"},"opera_android":{"version_added":"41"},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":"6.0"},"webview_android":{"version_added":"54"}},"status":{"experimental":true,"standard_track":true,"deprecated":false}}}},"text-transform":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-transform","spec_url":"https://drafts.csswg.org/css-text/#text-transform","support":{"chrome":{"version_added":"1","notes":"The <code>text-transform</code> property does not work for <code>::first-line</code> pseudo-elements (nor for the one-colon syntax). 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<code>background-position: 10px 10px;</code> and <code>background-position: 20px 20px, 30px 30px;</code> (see <a href='https://bugzil.la/1390446'>bug 1390446</a>)."]},{"prefix":"-moz-","version_added":"4"},{"version_added":"49","prefix":"-webkit-"}],"firefox_android":[{"version_added":"16","notes":["Before Firefox 57, transitions do not work when transitioning from a <a href='https://developer.mozilla.org/docs/Web/CSS/text-shadow'><code>text-shadow</code></a> with a color specified to a <code>text-shadow</code> without a color specified (see <A href='https://bugzil.la/726550'>bug 726550</a>).","Before Firefox 57, cancelling a filling animation (for example, with <code>animation-fill-mode: forwards</code> set) can trigger a transition set on the same element, although only once (see <a href='https://bugzil.la/1192592'>bug 1192592</a> and <a href='https://bug1192592.bmoattachments.org/attachment.cgi?id=8843824'>these test cases</a> for more information).","Before Firefox 57, the <a 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The syntax was completely different from this one and is not documented here."},"opera":[{"version_added":"40"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"41"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"9.1"},{"prefix":"-webkit-","version_added":"6"}],"safari_ios":[{"version_added":"9.3"},{"prefix":"-webkit-","version_added":"6"}],"samsunginternet_android":{"version_added":"6.0"},"webview_android":[{"version_added":"53"},{"prefix":"-webkit-","version_added":"4.4"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"svg":{"__compat":{"description":"On SVG elements","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"35"},"firefox_android":{"version_added":"35"},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"flex-basis":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-basis","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-basis-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"22"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":[{"version_added":"12"},{"prefix":"-webkit-","version_added":"12"}],"firefox":[{"version_added":"22","notes":"Since Firefox 28, multi-line flexbox is supported."},{"prefix":"-webkit-","version_added":"49"}],"firefox_android":[{"version_added":"22","notes":"Since Firefox 28, multi-line flexbox is supported."},{"prefix":"-webkit-","version_added":"49"}],"ie":{"version_added":"11","notes":"When a non-<code>auto</code> <code>flex-basis</code> is specified, Internet Explorer 10 and 11 always uses a <code>content-box</code> box model to calculate the size of a flex item, even if <a href='https://developer.mozilla.org/docs/Web/CSS/box-sizing'><code>box-sizing: border-box</code></a> is applied to the element. See <a href='https://github.com/philipwalton/flexbugs#7-flex-basis-doesnt-account-for-box-sizingborder-box'>Flexbug #7</a> for more info."},"opera":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"samsunginternet_android":[{"version_added":"2.0"},{"prefix":"-webkit-","version_added":"1.5"}],"webview_android":[{"version_added":"4.4"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"auto":{"__compat":{"description":"<code>auto</code>","support":{"chrome":{"version_added":"22"},"chrome_android":{"version_added":"25"},"edge":{"version_added":"12"},"firefox":{"version_added":"22"},"firefox_android":{"version_added":"22"},"ie":{"version_added":"11"},"opera":{"version_added":"12.1"},"opera_android":{"version_added":"12.1"},"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"samsunginternet_android":{"version_added":"1.5"},"webview_android":{"version_added":"≤37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"content":{"__compat":{"description":"<code>content</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":"12","version_removed":"79"},"firefox":{"version_added":"61"},"firefox_android":{"version_added":"61"},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"max-content":{"__compat":{"support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":[{"version_added":"66"},{"version_added":"22","prefix":"-moz-"}],"firefox_android":[{"version_added":"66"},{"version_added":"22","prefix":"-moz-"}],"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"min-content":{"__compat":{"support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":[{"version_added":"66"},{"version_added":"22","prefix":"-moz-"}],"firefox_android":[{"version_added":"66"},{"version_added":"22","prefix":"-moz-"}],"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"flex-direction":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-direction","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-direction-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"21"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":[{"version_added":"12"},{"prefix":"-webkit-","version_added":"12"}],"firefox":[{"version_added":"20","partial_implementation":true,"notes":["Since Firefox 28, multi-line flexbox is supported.","Before Firefox 81, overflow with <code>*-reverse</code> is unsupported. See <a href='https://bugzil.la/1042151'>bug 1042151</a>."]},{"prefix":"-webkit-","version_added":"49"}],"firefox_android":[{"version_added":"20","partial_implementation":true,"notes":["Since Firefox 28, multi-line flexbox is supported.","Before Firefox 81, overflow with <code>*-reverse</code> is unsupported. See <a href='https://bugzil.la/1042151'>bug 1042151</a>."]},{"prefix":"-webkit-","version_added":"49"}],"ie":[{"version_added":"11"},{"prefix":"-ms-","version_added":"10"}],"opera":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"samsunginternet_android":[{"version_added":"2.0"},{"prefix":"-webkit-","version_added":"1.5"}],"webview_android":[{"version_added":"4.4"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"flex-flow":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-flow","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-flow-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"21"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":{"version_added":"12"},"firefox":[{"version_added":"28"},{"prefix":"-webkit-","version_added":"49"}],"firefox_android":[{"version_added":"28"},{"prefix":"-webkit-","version_added":"49"}],"ie":{"version_added":"11"},"opera":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"samsunginternet_android":[{"version_added":"2.0"},{"prefix":"-webkit-","version_added":"1.5"}],"webview_android":[{"version_added":"4.4"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"flex-grow":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-grow","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-grow-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"22"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":[{"version_added":"12"},{"prefix":"-webkit-","version_added":"12"}],"firefox":{"version_added":"20","notes":"Since 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<code>0</code>."},"ie":{"version_added":false},"opera":{"version_added":"36"},"opera_android":{"version_added":"36"},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":"5.0"},"webview_android":{"version_added":"49"}},"status":{"experimental":false,"standard_track":false,"deprecated":false}}}},"flex-shrink":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-shrink","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-shrink-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"22"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":[{"version_added":"12"},{"prefix":"-webkit-","version_added":"12"}],"firefox":[{"version_added":"20","notes":["Since Firefox 28, multi-line flexbox is supported.","Before Firefox 32, Firefox wasn't able to animate values starting or stopping at <code>0</code>."]},{"prefix":"-webkit-","version_added":"49"}],"firefox_android":[{"version_added":"20","notes":["Since Firefox 28, multi-line flexbox is supported.","Before Firefox 32, Firefox wasn't able to animate values starting or stopping at <code>0</code>."]},{"prefix":"-webkit-","version_added":"49"}],"ie":{"version_added":"10","notes":"Internet Explorer 10 uses <code>0</code> instead of <code>1</code> as the initial value for the <code>flex-shrink</code> property. 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See <a href='https://github.com/philipwalton/flexbugs#6-the-default-flex-value-has-changed'>Flexbug #6</a> for more info."},"opera":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"8"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"8"}],"samsunginternet_android":[{"version_added":"2.0"},{"prefix":"-webkit-","version_added":"1.5"}],"webview_android":[{"version_added":"4.4"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"flex-wrap":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/flex-wrap","spec_url":"https://drafts.csswg.org/css-flexbox/#flex-wrap-property","support":{"chrome":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"21"}],"chrome_android":[{"version_added":"29"},{"prefix":"-webkit-","version_added":"25"}],"edge":{"version_added":"12"},"firefox":{"version_added":"28"},"firefox_android":{"version_added":"52"},"ie":{"version_added":"11","partial_implementation":true,"notes":"Partial support due to large number of bugs present. 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This can be worked around by using the longhand properties instead of the shorthand. See <a href='https://github.com/philipwalton/flexbugs#8-flex-basis-doesnt-support-calc'>Flexbug #8</a> for more info.","Internet Explorer 11 considers a unitless value in the <code>flex-basis</code> part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the <code>flex-basis</code> part of the <code>flex</code> shorthand value. See <a href='https://github.com/philipwalton/flexbugs#4-flex-shorthand-declarations-with-unitless-flex-basis-values-are-ignored'>Flexbug #4</a> for more info."]},{"prefix":"-ms-","version_added":"10","notes":["Internet Explorer 10 and 11 ignore uses of <a href='https://developer.mozilla.org/docs/Web/CSS/calc'><code>calc()</code></a> in the <code>flex-basis</code> part of the <code>flex</code> syntax. This can be worked around by using the longhand properties instead of the shorthand. See <a href='https://github.com/philipwalton/flexbugs#8-flex-basis-doesnt-support-calc'>Flexbug #8</a> for more info.","Internet Explorer 10 and 11 consider a unitless value in the <code>flex-basis</code> part to be syntactically invalid (and will thus be ignored). A workaround is to always include a unit in the <code>flex-basis</code> part of the <code>flex</code> shorthand value. See <a href='https://github.com/philipwalton/flexbugs#4-flex-shorthand-declarations-with-unitless-flex-basis-values-are-ignored'>Flexbug #4</a> for more info."]}],"opera":{"version_added":"12.1"},"opera_android":{"version_added":"12.1"},"safari":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"safari_ios":[{"version_added":"9"},{"prefix":"-webkit-","version_added":"7"}],"samsunginternet_android":[{"version_added":"2.0"},{"prefix":"-webkit-","version_added":"1.5"}],"webview_android":[{"version_added":"4.4"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"float":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/float","spec_url":"https://drafts.csswg.org/css-logical/#float-clear","support":{"chrome":{"version_added":"1"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"12"},"firefox":{"version_added":"1"},"firefox_android":{"version_added":"4"},"ie":{"version_added":"4"},"opera":{"version_added":"7"},"opera_android":{"version_added":"10.1"},"safari":{"version_added":"1"},"safari_ios":{"version_added":"1"},"samsunginternet_android":{"version_added":"1.0"},"webview_android":{"version_added":"1"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"flow_relative_values":{"__compat":{"description":"Flow-relative values <code>inline-start</code> and <code>inline-end</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"55"},"firefox_android":{"version_added":"55"},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"font-family":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/font-family","spec_url":["https://drafts.csswg.org/css-fonts/#generic-font-families","https://drafts.csswg.org/css-fonts/#font-family-prop"],"support":{"chrome":{"version_added":"1"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"12"},"firefox":{"version_added":"1","notes":"Not supported on <code>option</code> elements. 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<code>left</code>, and <code>right</code> values for block alignment","support":{"chrome":{"prefix":"-webkit-","version_added":"1"},"chrome_android":{"prefix":"-webkit-","version_added":"18"},"edge":{"prefix":"-webkit-","version_added":"79"},"firefox":{"prefix":"-moz-","version_added":"1"},"firefox_android":{"prefix":"-moz-","version_added":"4"},"ie":{"version_added":false},"opera":{"prefix":"-webkit-","version_added":"15"},"opera_android":{"prefix":"-webkit-","version_added":"14"},"safari":[{"prefix":"-webkit-","version_added":"1.3"},{"prefix":"-khtml-","version_added":"1"}],"safari_ios":[{"prefix":"-webkit-","version_added":"1"},{"prefix":"-khtml-","version_added":"1"}],"samsunginternet_android":{"version_added":"1.0","prefix":"-webkit-"},"webview_android":{"prefix":"-webkit-","version_added":"37"}},"status":{"experimental":false,"standard_track":false,"deprecated":true}}},"flow_relative_values_start_and_end":{"__compat":{"description":"Flow-relative values <code>start</code> and <code>end</code>","support":{"chrome":{"version_added":"1"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"79"},"firefox":{"version_added":"1"},"firefox_android":{"version_added":"4"},"ie":{"version_added":false},"opera":{"version_added":"15"},"opera_android":{"version_added":"14"},"safari":{"version_added":"3.1"},"safari_ios":{"version_added":"2"},"samsunginternet_android":{"version_added":"1.0"},"webview_android":{"version_added":"37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"justify-all":{"__compat":{"description":"<code>justify-all</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"match-parent":{"__compat":{"description":"<code>match-parent</code>","support":{"chrome":{"version_added":"16"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"79"},"firefox":{"version_added":"40"},"firefox_android":{"version_added":"40"},"ie":{"version_added":false},"opera":{"version_added":"15"},"opera_android":{"version_added":"14"},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":"1.0"},"webview_android":{"version_added":"37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"string":{"__compat":{"description":"Character-based alignment in a table column (<code>&lt;string&gt;</code> value)","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":true,"standard_track":true,"deprecated":false}}}},"text-combine-upright":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-combine-upright","spec_url":"https://drafts.csswg.org/css-writing-modes/#text-combine-upright","support":{"chrome":[{"version_added":"48"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"9","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}],"chrome_android":[{"version_added":"48"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"18","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}],"edge":[{"version_added":"15","version_removed":"79"},{"version_added":"12","version_removed":"79","alternative_name":"-ms-text-combine-horizontal"}],"firefox":{"version_added":"48","notes":"Before version 81, Firefox implemented the property as animatable. This was corrected to spec in 81."},"firefox_android":{"version_added":"48","notes":"Before version 81, Firefox implemented the property as animatable. This was corrected to spec in 81."},"ie":{"version_added":"11","alternative_name":"-ms-text-combine-horizontal"},"opera":[{"version_added":"35"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"15","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}],"opera_android":[{"version_added":"35"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"14","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}],"safari":{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"5.1","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."},"safari_ios":{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"5","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."},"samsunginternet_android":[{"version_added":"5.0"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"1.0","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}],"webview_android":[{"version_added":"48"},{"partial_implementation":true,"alternative_name":"-webkit-text-combine","version_added":"≤37","notes":"This property was initially named <code>-webkit-text-combine</code> according to a <a href='http://www.w3.org/TR/2011/WD-css3-writing-modes-20110531/#text-combine'>2011 version of the CSS3 Writing Modes specification</a>, supporting the values <code>none</code> and <code>horizontal</code> without <code>digits</code>."}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"digits":{"__compat":{"description":"<code>digits</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":[{"version_added":"15","version_removed":"79"},{"version_added":"12","version_removed":"79","alternative_name":"-ms-text-combine-horizontal"}],"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":"11","alternative_name":"-ms-text-combine-horizontal"},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"text-decoration-color":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-color","spec_url":"https://drafts.csswg.org/css-text-decor/#text-decoration-color-property","support":{"chrome":{"version_added":"57"},"chrome_android":{"version_added":"57"},"edge":{"version_added":"79"},"firefox":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"firefox_android":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"8"}],"safari_ios":[{"version_added":"12.2"},{"prefix":"-webkit-","version_added":"8"}],"samsunginternet_android":{"version_added":"7.0"},"webview_android":{"version_added":"57"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"text-decoration-line":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-line","spec_url":"https://drafts.csswg.org/css-text-decor/#text-decoration-line-property","support":{"chrome":{"version_added":"57"},"chrome_android":{"version_added":"57"},"edge":{"version_added":"79"},"firefox":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"firefox_android":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"8"}],"safari_ios":[{"version_added":"12.2"},{"prefix":"-webkit-","version_added":"8"}],"samsunginternet_android":{"version_added":"7.0"},"webview_android":{"version_added":"57"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"blink":{"__compat":{"description":"<code>blink</code>","support":{"chrome":{"version_added":"57","notes":"The <code>blink</code> value does not have any effect."},"chrome_android":{"version_added":"57","notes":"The <code>blink</code> value does not have any effect."},"edge":{"version_added":"79","notes":"The <code>blink</code> value does not have any effect."},"firefox":{"version_added":"26","notes":"The <code>blink</code> value does not have any effect."},"firefox_android":{"version_added":"26","notes":"The <code>blink</code> value does not have any effect."},"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":{"version_added":"8"},"safari_ios":{"version_added":"8"},"samsunginternet_android":{"version_added":"7.0","notes":"The <code>blink</code> value does not have any effect."},"webview_android":{"version_added":"57","notes":"The <code>blink</code> value does not have any effect."}},"status":{"experimental":false,"standard_track":true,"deprecated":true}}}},"text-decoration-skip-ink":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-skip-ink","spec_url":"https://drafts.csswg.org/css-text-decor-4/#text-decoration-skip-ink-property","support":{"chrome":{"version_added":"64"},"chrome_android":{"version_added":"64"},"edge":{"version_added":"79"},"firefox":{"version_added":"70"},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":"50"},"opera_android":{"version_added":"46"},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":"9.0"},"webview_android":{"version_added":"64"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"all":{"__compat":{"description":"<code>all</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"75"},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"text-decoration-skip":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-skip","spec_url":"https://drafts.csswg.org/css-text-decor-4/#text-decoration-skipping","support":{"chrome":{"version_added":"57","version_removed":"64","notes":"Only 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value."}},"status":{"experimental":true,"standard_track":true,"deprecated":false}}},"text-decoration-style":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-style","spec_url":"https://drafts.csswg.org/css-text-decor/#text-decoration-style-property","support":{"chrome":{"version_added":"57"},"chrome_android":{"version_added":"57"},"edge":{"version_added":"79"},"firefox":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"firefox_android":[{"version_added":"36"},{"prefix":"-moz-","version_added":"6","version_removed":"39"}],"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":[{"version_added":"12.1"},{"prefix":"-webkit-","version_added":"8"}],"safari_ios":[{"version_added":"12.2"},{"prefix":"-webkit-","version_added":"8"}],"samsunginternet_android":{"version_added":"7.0"},"webview_android":{"version_added":"57"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"wavy":{"__compat":{"description":"<code>wavy</code>","support":{"chrome":{"version_added":"57"},"chrome_android":{"version_added":"57"},"edge":{"version_added":"79"},"firefox":{"version_added":"6"},"firefox_android":{"version_added":"6"},"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":{"version_added":"8"},"safari_ios":{"version_added":"8"},"samsunginternet_android":{"version_added":"7.0"},"webview_android":{"version_added":"57"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"text-decoration-thickness":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-decoration-thickness","spec_url":"https://drafts.csswg.org/css-text-decor-4/#text-decoration-width-property","support":{"chrome":[{"version_added":"89"},{"version_added":"87","version_removed":"89","partial_implementation":true,"notes":"The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>Chromium bug 1154537</a>."}],"chrome_android":[{"version_added":"89"},{"version_added":"87","version_removed":"89","partial_implementation":true,"notes":"The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>Chromium bug 1154537</a>."}],"edge":[{"version_added":"89"},{"version_added":"87","version_removed":"89","partial_implementation":true,"notes":"The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>Chromium bug 1154537</a>."}],"firefox":[{"version_added":"70"},{"version_added":"69","alternative_name":"text-decoration-width","flags":[{"type":"preference","name":"layout.css.text-decoration-width.enabled","value_to_set":"true"}]}],"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":[{"version_added":"75"},{"version_added":"73","version_removed":"75","partial_implementation":true,"notes":"The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>Chromium bug 1154537</a>."}],"opera_android":{"version_added":"63"},"safari":{"version_added":"12.1"},"safari_ios":{"version_added":"12.2"},"samsunginternet_android":{"version_added":"15.0"},"webview_android":[{"version_added":"89"},{"version_added":"87","version_removed":"89","partial_implementation":true,"notes":"The <code>text-decoration-thickness</code> property does not work unless either <code>text-underline-offset</code> is set to something other than <code>auto</code> or <code>text-decoration-color</code> is set to something other than <code>currentColor</code>. See <a href='https://crbug.com/1154537'>Chromium bug 1154537</a>."}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"percentage":{"__compat":{"description":"percentage 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Experimental Web Platform Features","value_to_set":"true"}],"notes":"<code>inter-word</code> and <code>distribute</code> (deprecated) values are supported, but <code>distribute</code> behavior is buggy."},"chrome_android":{"version_added":"32","flags":[{"type":"preference","name":"Enable Experimental Web Platform Features","value_to_set":"true"}],"notes":"<code>inter-word</code> and <code>distribute</code> (deprecated) values are supported, but <code>distribute</code> behavior is buggy."},"edge":{"version_added":"12","notes":"Standard values <code>inter-character</code> and <code>none</code> are supported. The deprecated <code>distribute</code> value is also supported."},"firefox":{"version_added":"55"},"firefox_android":{"version_added":"55"},"ie":{"version_added":"11","notes":"Standard values <code>inter-character</code> and <code>none</code> are supported. The deprecated <code>distribute</code> value is also supported."},"opera":{"version_added":"19","flags":[{"type":"preference","name":"Enable Experimental Web Platform Features","value_to_set":"true"}],"notes":"<code>inter-word</code> and <code>distribute</code> (deprecated) values are supported, but <code>distribute</code> behavior is buggy."},"opera_android":{"version_added":"19","flags":[{"type":"preference","name":"Enable Experimental Web Platform Features","value_to_set":"true"}],"notes":"<code>inter-word</code> and <code>distribute</code> (deprecated) values are supported, but <code>distribute</code> behavior is buggy."},"safari":{"version_added":false,"notes":"See <a href='https://webkit.org/b/99945'>bug 9945</a>."},"safari_ios":{"version_added":false,"notes":"See <a href='https://webkit.org/b/99945'>bug 9945</a>."},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"text-orientation":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-orientation","spec_url":"https://drafts.csswg.org/css-writing-modes/#text-orientation","support":{"chrome":[{"version_added":"48"},{"prefix":"-webkit-","version_added":"11"}],"chrome_android":[{"version_added":"48"},{"prefix":"-webkit-","version_added":"18"}],"edge":[{"version_added":"79"},{"prefix":"-webkit-","version_added":"79"}],"firefox":{"version_added":"41"},"firefox_android":{"version_added":"41"},"ie":{"version_added":false},"opera":[{"version_added":"35"},{"prefix":"-webkit-","version_added":"15"}],"opera_android":[{"version_added":"35"},{"prefix":"-webkit-","version_added":"14"}],"safari":[{"version_added":"14"},{"prefix":"-webkit-","version_added":"5.1"}],"safari_ios":[{"version_added":"14"},{"prefix":"-webkit-","version_added":"5"}],"samsunginternet_android":[{"version_added":"5.0"},{"prefix":"-webkit-","version_added":"1.0"}],"webview_android":[{"version_added":"48"},{"prefix":"-webkit-","version_added":"≤37"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"sideways":{"__compat":{"description":"<code>sideways</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"44","notes":"<code>sideways-right</code> has become an alias of <code>sideways</code>."},"firefox_android":{"version_added":"44","notes":"<code>sideways-right</code> has become an alias of <code>sideways</code>."},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"text-overflow":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-overflow","spec_url":"https://drafts.csswg.org/css-overflow/#text-overflow","support":{"chrome":{"version_added":"1"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"12"},"firefox":{"version_added":"7","notes":"Until Firefox 10, handling of <code>text-overflow</code> on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox 10, if only one value was specified (such as <code>text-overflow: ellipsis;</code>), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction."},"firefox_android":{"version_added":"7","notes":"Until Firefox 10, handling of <code>text-overflow</code> on blocks with inline overflow on both horizontal sides was incorrect. Before Firefox 10, if only one value was specified (such as <code>text-overflow: ellipsis;</code>), text was ellipsed on both sides of the block, instead of only the end edge based on the block's text direction."},"ie":[{"version_added":"6"},{"prefix":"-ms-","version_added":"8"}],"opera":[{"version_added":"11"},{"prefix":"-o-","version_added":"9","version_removed":"15"}],"opera_android":[{"version_added":"11"},{"prefix":"-o-","version_added":"10.1","version_removed":"14"}],"safari":{"version_added":"1.3"},"safari_ios":{"version_added":"1"},"samsunginternet_android":{"version_added":"1.0"},"webview_android":{"version_added":"≤37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}},"fade_function":{"__compat":{"description":"<code>fade()</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":true,"standard_track":true,"deprecated":false}}},"fade_value":{"__compat":{"description":"<code>fade</code>","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"string":{"__compat":{"description":"&lt;string&gt;","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"9"},"firefox_android":{"version_added":"9"},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"two_value_syntax":{"__compat":{"description":"Two-value syntax","support":{"chrome":{"version_added":false},"chrome_android":{"version_added":false},"edge":{"version_added":false},"firefox":{"version_added":"9"},"firefox_android":{"version_added":"9"},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}}},"text-rendering":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-rendering","spec_url":"https://svgwg.org/svg2-draft/painting.html#TextRenderingProperty","support":{"chrome":{"version_added":"4","notes":["This property is only supported on Windows and Linux.","Initial versions had bugs on Windows and Linux that broke <a href='https://crbug.com/114719'>font substitition</a>, <a href='https://crbug.com/51973'>small-caps</a>, <a href='https://crbug.com/55458'>letter-spacing</a> or caused <a href='https://crbug.com/149548'>text to overlap</a>."]},"chrome_android":{"version_added":"18","notes":["This property is only supported on Windows and Linux.","Initial versions had bugs on Windows and Linux that broke <a href='https://crbug.com/114719'>font substitition</a>, <a href='https://crbug.com/51973'>small-caps</a>, <a href='https://crbug.com/55458'>letter-spacing</a> or caused <a href='https://crbug.com/149548'>text to overlap</a>."]},"edge":{"version_added":"79","notes":["This property is only supported on Windows and Linux.","Initial versions had bugs on Windows and Linux that broke <a href='https://crbug.com/114719'>font substitition</a>, <a href='https://crbug.com/51973'>small-caps</a>, <a href='https://crbug.com/55458'>letter-spacing</a> or caused <a href='https://crbug.com/149548'>text to overlap</a>."]},"firefox":{"version_added":"1","notes":["This property is only supported on Windows and Linux.","The <code>optimizeSpeed</code> option has no effect on Firefox 4 because the standard code for text rendering is already fast and there is not a faster code path at this time. See <a href='https://bugzil.la/595688'>bug 595688</a> for details."]},"firefox_android":{"version_added":"46"},"ie":{"version_added":false},"opera":{"version_added":"15"},"opera_android":{"version_added":"14"},"safari":{"version_added":"5"},"safari_ios":{"version_added":"4.2"},"samsunginternet_android":{"version_added":"1.0","notes":"This property is only supported on Windows and Linux. Samsung Internet is not on Windows or Linux."},"webview_android":{"version_added":"3","notes":"From version 3 to 4.3, there is a serious bug where <code>text-rendering: optimizeLegibility</code> causes custom web fonts to not render. This was fixed in version 4.4."}},"status":{"experimental":false,"standard_track":false,"deprecated":false}},"auto":{"__compat":{"description":"<code>auto</code>","support":{"chrome":{"version_added":"4","notes":"Chrome treats <code>auto</code> as <code>optimizeSpeed</code>."},"chrome_android":{"version_added":"18","notes":"Chrome treats <code>auto</code> as <code>optimizeSpeed</code>."},"edge":{"version_added":"79","notes":"Edge treats <code>auto</code> as <code>optimizeSpeed</code>."},"firefox":{"version_added":"1","notes":"If the font size is 20 pixels or higher, Firefox treats <code>auto</code> as <code>optimizeLegibility</code>. For smaller text, Firefox treats <code>auto</code> as <code>optimizeSpeed</code>. The 20-pixel threshold can be changed with the <code>browser.display.auto_quality_min_font_size</code> preference."},"firefox_android":{"version_added":"46","notes":"If the font size is 20 pixels or higher, Firefox treats <code>auto</code> as <code>optimizeLegibility</code>. For smaller text, Firefox treats <code>auto</code> as <code>optimizeSpeed</code>. The 20-pixel threshold can be changed with the <code>browser.display.auto_quality_min_font_size</code> preference."},"ie":{"version_added":false},"opera":{"version_added":"15","notes":"Opera treats <code>auto</code> as <code>optimizeSpeed</code>."},"opera_android":{"version_added":"14","notes":"Opera treats <code>auto</code> as <code>optimizeSpeed</code>."},"safari":{"version_added":"5","notes":"Safari treats <code>auto</code> as <code>optimizeSpeed</code>. See <a href='https://webkit.org/b/41363'>WebKit bug 41363</a>."},"safari_ios":{"version_added":"4.2","notes":"Safari treats <code>auto</code> as <code>optimizeSpeed</code>. See <a href='https://webkit.org/b/41363'>WebKit bug 41363</a>."},"samsunginternet_android":{"version_added":"1.0","notes":"Samsung Internet treats <code>auto</code> as <code>optimizeSpeed</code>."},"webview_android":{"version_added":"≤37","notes":"WebView treats <code>auto</code> as <code>optimizeSpeed</code>."}},"status":{"experimental":false,"standard_track":false,"deprecated":false}}},"geometricPrecision":{"__compat":{"description":"<code>geometricPrecision</code>","support":{"chrome":{"version_added":"13","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"chrome_android":{"version_added":"18","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"edge":{"version_added":"79","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"firefox":{"version_added":"1","notes":"Firefox treats <code>geometricPrecision</code> the same as <code>optimizeLegibility</code>."},"firefox_android":{"version_added":"46","notes":"Firefox treats <code>geometricPrecision</code> the same as <code>optimizeLegibility</code>."},"ie":{"version_added":false},"opera":{"version_added":"15","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"opera_android":{"version_added":"14","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"safari":{"version_added":"6"},"safari_ios":{"version_added":"6"},"samsunginternet_android":{"version_added":"1.0","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."},"webview_android":{"version_added":"37","notes":"Supports true geometric precision without rounding up or down to the nearest supported font size in the operating system."}},"status":{"experimental":false,"standard_track":false,"deprecated":false}}}},"text-shadow":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-shadow","spec_url":"https://drafts.csswg.org/css-text-decor/#text-shadow-property","support":{"chrome":{"version_added":"2"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"12"},"firefox":{"version_added":"3.5","notes":["Firefox versions before 57 have a bug whereby <a href='https://developer.mozilla.org/docs/Web/CSS/transition'><code>transition</code></a>s will not work when transitioning from a <code>text-shadow</code> with a color specified to a <code>text-shadow</code> without a color specified (<a href='https://bugzil.la/726550'>bug 726550</a>).","From Firefox 4, the blur radius is capped at 300 for performance reasons.","Firefox theoretically supports infinite text-shadows (don't try it).","If the <code>&lt;color&gt;</code> value is unspecified, then Firefox uses the value of the element's <a href='https://developer.mozilla.org/docs/Web/CSS/color'><code>color</code></a> property."]},"firefox_android":{"version_added":"4","notes":["Firefox versions before 57 have a bug whereby <a href='https://developer.mozilla.org/docs/Web/CSS/transition'><code>transition</code></a>s will not work when transitioning from a <code>text-shadow</code> with a color specified to a <code>text-shadow</code> without a color specified (<a href='https://bugzil.la/726550'>bug 726550</a>).","From Firefox 4, the blur radius is capped at 300 for performance reasons.","Firefox theoretically supports infinite text-shadows (don't try it).","If the <code>&lt;color&gt;</code> value is unspecified, then Firefox uses the value of the element's <a href='https://developer.mozilla.org/docs/Web/CSS/color'><code>color</code></a> property."]},"ie":{"version_added":"10"},"opera":{"version_added":"9.5","notes":["Opera supports a maximum of 6-9 text-shadows for performance reasons. The blur radius is limited to 100px.","Opera 9.5 to 10.1 adheres to the old, reverse painting order (in CSS2, the first specified shadow is on the bottom)."]},"opera_android":{"version_added":"14"},"safari":{"version_added":"1.1","notes":["In Safari, any shadows that do not explicitly specify a color are transparent.","Safari 1.1 to 3.2 only supports one text-shadow (displays the first shadow of a comma-separated list and ignores the rest). Safari 4.0 (WebKit 528) and later support multiple text-shadows."]},"safari_ios":{"version_added":"1","notes":["In Safari, any shadows that do not explicitly specify a color are transparent.","Safari iOS 1 and 2 only support one text-shadow (displays the first shadow of a comma-separated list and ignores the rest). Safari iOS 3 (WebKit 528) and later support multiple text-shadows."]},"samsunginternet_android":{"version_added":"1.0"},"webview_android":{"version_added":"37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"text-size-adjust":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-size-adjust","spec_url":"https://drafts.csswg.org/css-size-adjust/#adjustment-control","support":{"chrome":[{"version_added":"54"},{"prefix":"-webkit-","version_added":false,"notes":"Instead of ignoring the <code>-webkit-text-size-adjust</code> property, a bug prevents desktop Chrome users from zooming in or out. The bug was fixed after Chrome 26."}],"chrome_android":{"version_added":"54"},"edge":[{"version_added":"79"},{"prefix":"-webkit-","version_added":"12","version_removed":"79"}],"firefox":{"version_added":false},"firefox_android":[{"prefix":"-webkit-","version_added":"49"},{"prefix":"-moz-","version_added":"14"},{"prefix":"-webkit-","version_added":"44","flags":[{"type":"preference","name":"layout.css.prefixes.webkit","value_to_set":"true"}]}],"ie":{"version_added":false},"opera":{"version_added":"41"},"opera_android":{"version_added":"41"},"safari":[{"version_added":false},{"prefix":"-webkit-","version_added":false,"notes":"Instead of ignoring the <code>-webkit-text-size-adjust</code> property, a bug prevents desktop Safari users from zooming in or out. The bug was fixed after Safari 5."}],"safari_ios":{"prefix":"-webkit-","version_added":"1"},"samsunginternet_android":{"version_added":"6.0"},"webview_android":{"version_added":"54"}},"status":{"experimental":true,"standard_track":true,"deprecated":false}},"percentages":{"__compat":{"description":"<code>&lt;percentage&gt;</code>","support":{"chrome":{"version_added":"54"},"chrome_android":{"version_added":"54"},"edge":{"version_added":"12"},"firefox":{"version_added":false},"firefox_android":{"version_added":false},"ie":{"version_added":false},"opera":{"version_added":"41"},"opera_android":{"version_added":"41"},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":"6.0"},"webview_android":{"version_added":"54"}},"status":{"experimental":true,"standard_track":true,"deprecated":false}}}},"text-transform":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/text-transform","spec_url":"https://drafts.csswg.org/css-text/#text-transform","support":{"chrome":{"version_added":"1","notes":"The <code>text-transform</code> property does not work for <code>::first-line</code> pseudo-elements (nor for the one-colon syntax). 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Firefox 57, transitions do not work when transitioning from a <a href='https://developer.mozilla.org/docs/Web/CSS/text-shadow'><code>text-shadow</code></a> with a color specified to a <code>text-shadow</code> without a color specified (see <A href='https://bugzil.la/726550'>bug 726550</a>).","Before Firefox 57, cancelling a filling animation (for example, with <code>animation-fill-mode: forwards</code> set) can trigger a transition set on the same element, although only once (see <a href='https://bugzil.la/1192592'>bug 1192592</a> and <a href='https://bug1192592.bmoattachments.org/attachment.cgi?id=8843824'>these test cases</a> for more information).","Before Firefox 57, the <a href='https://developer.mozilla.org/docs/Web/CSS/background-position'><code>background-position</code></a> property can't be transitioned between two values containing different numbers of <a href='https://developer.mozilla.org/docs/Web/CSS/position_value'><code>&lt;position&gt;</code></a> values, for example <code>background-position: 10px 10px;</code> and <code>background-position: 20px 20px, 30px 30px;</code> (see <a href='https://bugzil.la/1390446'>bug 1390446</a>)."]},{"prefix":"-moz-","version_added":"4"},{"version_added":"49","prefix":"-webkit-"}],"firefox_android":[{"version_added":"16","notes":["Before Firefox 57, transitions do not work when transitioning from a <a href='https://developer.mozilla.org/docs/Web/CSS/text-shadow'><code>text-shadow</code></a> with a color specified to a <code>text-shadow</code> without a color specified (see <A href='https://bugzil.la/726550'>bug 726550</a>).","Before Firefox 57, cancelling a filling animation (for example, with <code>animation-fill-mode: forwards</code> set) can trigger a transition set on the same element, although only once (see <a href='https://bugzil.la/1192592'>bug 1192592</a> and <a href='https://bug1192592.bmoattachments.org/attachment.cgi?id=8843824'>these test cases</a> for more information).","Before Firefox 57, the <a 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,"flags":[{"type":"preference","name":"layout.css.fit-content-function.enabled"}]},"firefox_android":{"version_added":"91","flags":[{"type":"preference","name":"layout.css.fit-content-function.enabled"}]},"ie":{"version_added":false},"opera":{"version_added":false},"opera_android":{"version_added":false},"safari":{"version_added":false},"safari_ios":{"version_added":false},"samsunginternet_android":{"version_added":false},"webview_android":{"version_added":false}},"status":{"experimental":true,"standard_track":true,"deprecated":false}}},"max-content":{"__compat":{"spec_url":"https://drafts.csswg.org/css-sizing-3/#valdef-width-max-content","description":"<code>max-content</code>","support":{"chrome":[{"version_added":"46"},{"prefix":"-webkit-","version_added":"22"}],"chrome_android":{"version_added":"46"},"edge":[{"version_added":"79"},{"prefix":"-webkit-","version_added":"79"}],"firefox":[{"version_added":"66"},{"version_added":"3","prefix":"-moz-"}],"firefox_android":[{"version_added":"66"},{"version_added":"4","prefix":"-moz-"}],"ie":{"version_added":false},"opera":{"version_added":"44"},"opera_android":{"version_added":"43"},"safari":[{"version_added":"11"},{"alternative_name":"intrinsic","version_added":"2"}],"safari_ios":[{"version_added":"11"},{"alternative_name":"intrinsic","version_added":"1"}],"samsunginternet_android":{"version_added":"5.0"},"webview_android":{"version_added":"46"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"min-content":{"__compat":{"spec_url":"https://drafts.csswg.org/css-sizing-3/#valdef-width-min-content","description":"<code>min-content</code>","support":{"chrome":[{"version_added":"46"},{"alternative_name":"min-intrinsic","version_added":"1","version_removed":"48"}],"chrome_android":[{"version_added":"46"},{"alternative_name":"min-intrinsic","version_added":"18","version_removed":"48"}],"edge":{"version_added":"79"},"firefox":[{"version_added":"66"},{"version_added":"3","prefix":"-moz-"}],"firefox_android":[{"version_added":"66"},{"version_added":"4","prefix":"-moz-"}],"ie":{"version_added":false},"opera":[{"version_added":"33"},{"alternative_name":"min-intrinsic","version_added":"15","version_removed":"35"}],"opera_android":[{"version_added":"33"},{"alternative_name":"min-intrinsic","version_added":"14","version_removed":"35"}],"safari":[{"version_added":"11"},{"alternative_name":"min-intrinsic","version_added":"2"}],"safari_ios":[{"version_added":"11"},{"alternative_name":"min-intrinsic","version_added":"1"}],"samsunginternet_android":[{"version_added":"5.0"},{"alternative_name":"min-intrinsic","version_added":"1.0","version_removed":"5.0"}],"webview_android":[{"version_added":"46"},{"alternative_name":"min-intrinsic","version_added":"1","version_removed":"48"}]},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"stretch":{"__compat":{"description":"<code>stretch</code>","support":{"chrome":{"alternative_name":"-webkit-fill-available","version_added":"22"},"chrome_android":{"alternative_name":"-webkit-fill-available","version_added":"25"},"edge":{"alternative_name":"-webkit-fill-available","version_added":"79"},"firefox":{"alternative_name":"-moz-available","version_added":"3"},"firefox_android":{"alternative_name":"-moz-available","version_added":"4"},"ie":{"version_added":false},"opera":{"alternative_name":"-webkit-fill-available","version_added":"15"},"opera_android":{"alternative_name":"-webkit-fill-available","version_added":"14"},"safari":{"alternative_name":"-webkit-fill-available","version_added":"6.1"},"safari_ios":{"alternative_name":"-webkit-fill-available","version_added":"6.1"},"samsunginternet_android":{"version_added":"5.0","alternative_name":"-webkit-fill-available"},"webview_android":{"alternative_name":"-webkit-fill-available","version_added":"4.4"}},"status":{"experimental":true,"standard_track":true,"deprecated":false}}}},"will-change":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/will-change","spec_url":"https://drafts.csswg.org/css-will-change/#will-change","support":{"chrome":{"version_added":"36"},"chrome_android":{"version_added":"36"},"edge":{"version_added":"79"},"firefox":{"version_added":"36"},"firefox_android":{"version_added":"36"},"ie":{"version_added":false},"opera":{"version_added":"24"},"opera_android":{"version_added":"24"},"safari":{"version_added":"9.1"},"safari_ios":{"version_added":"9.3"},"samsunginternet_android":{"version_added":"3.0"},"webview_android":{"version_added":"37"}},"status":{"experimental":false,"standard_track":true,"deprecated":false}}},"word-break":{"__compat":{"mdn_url":"https://developer.mozilla.org/docs/Web/CSS/word-break","spec_url":"https://drafts.csswg.org/css-text/#word-break-property","support":{"chrome":{"version_added":"1"},"chrome_android":{"version_added":"18"},"edge":{"version_added":"12"},"firefox":{"version_added":"15"},"firefox_android":{"version_added":"15"},"ie":[{"version_added":"5.5","notes":"No 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\ No newline at end of file
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/specs/webconsole.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/specs/webconsole.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/specs/webconsole.js	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/specs/webconsole.js	2021-10-20 19:28:16.000000000 +0000
@@ -12,14 +12,9 @@
   Arg,
 } = require("devtools/shared/protocol");
 
-types.addDictType("console.traits", {
-  evaluateJSAsync: "boolean",
-});
-
 types.addDictType("console.startlisteners", {
   startedListeners: "array:string",
   nativeConsoleAPI: "nullable:boolean",
-  traits: "console.traits",
 });
 
 types.addDictType("console.stoplisteners", {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/webconsole/analyze-input-string.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/webconsole/analyze-input-string.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/webconsole/analyze-input-string.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/webconsole/analyze-input-string.js	2021-10-20 19:28:16.000000000 +0000
@@ -0,0 +1,406 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const STATE_NORMAL = Symbol("STATE_NORMAL");
+const STATE_QUOTE = Symbol("STATE_QUOTE");
+const STATE_DQUOTE = Symbol("STATE_DQUOTE");
+const STATE_TEMPLATE_LITERAL = Symbol("STATE_TEMPLATE_LITERAL");
+const STATE_ESCAPE_QUOTE = Symbol("STATE_ESCAPE_QUOTE");
+const STATE_ESCAPE_DQUOTE = Symbol("STATE_ESCAPE_DQUOTE");
+const STATE_ESCAPE_TEMPLATE_LITERAL = Symbol("STATE_ESCAPE_TEMPLATE_LITERAL");
+const STATE_SLASH = Symbol("STATE_SLASH");
+const STATE_INLINE_COMMENT = Symbol("STATE_INLINE_COMMENT");
+const STATE_MULTILINE_COMMENT = Symbol("STATE_MULTILINE_COMMENT");
+const STATE_MULTILINE_COMMENT_CLOSE = Symbol("STATE_MULTILINE_COMMENT_CLOSE");
+const STATE_QUESTION_MARK = Symbol("STATE_QUESTION_MARK");
+
+const OPEN_BODY = "{[(".split("");
+const CLOSE_BODY = "}])".split("");
+const OPEN_CLOSE_BODY = {
+  "{": "}",
+  "[": "]",
+  "(": ")",
+};
+
+const NO_AUTOCOMPLETE_PREFIXES = ["var", "const", "let", "function", "class"];
+const OPERATOR_CHARS_SET = new Set(";,:=<>+-*%|&^~!".split(""));
+
+/**
+ * Analyses a given string to find the last statement that is interesting for
+ * later completion.
+ *
+ * @param   string str
+ *          A string to analyse.
+ *
+ * @returns object
+ *          If there was an error in the string detected, then a object like
+ *
+ *            { err: "ErrorMesssage" }
+ *
+ *          is returned, otherwise a object like
+ *
+ *            {
+ *              state: STATE_NORMAL|STATE_QUOTE|STATE_DQUOTE,
+ *              lastStatement: the last statement in the string,
+ *              isElementAccess: boolean that indicates if the lastStatement has an open
+ *                               element access (e.g. `x["match`).
+ *              isPropertyAccess: boolean indicating if we are accessing property
+ *                                (e.g `true` in `var a = {b: 1};a.b`)
+ *              matchProp: The part of the expression that should match the properties
+ *                         on the mainExpression (e.g. `que` when expression is `document.body.que`)
+ *              mainExpression: The part of the expression before any property access,
+ *                              (e.g. `a.b` if expression is `a.b.`)
+ *              expressionBeforePropertyAccess: The part of the expression before property access
+ *                                              (e.g `var a = {b: 1};a` if expression is `var a = {b: 1};a.b`)
+ *            }
+ */
+// eslint-disable-next-line complexity
+exports.analyzeInputString = function(str, timeout = 2500) {
+  // work variables.
+  const bodyStack = [];
+  let state = STATE_NORMAL;
+  let previousNonWhitespaceChar;
+  let lastStatement = "";
+  let currentIndex = -1;
+  let dotIndex;
+  let pendingWhitespaceChars = "";
+  const startingTime = Date.now();
+
+  // Use a string iterator in order to handle character with a length >= 2 (e.g. 😎).
+  for (const c of str) {
+    // We are possibly dealing with a very large string that would take a long time to
+    // analyze (and freeze the process). If the function has been running for more than
+    // a given time, we stop the analysis (this isn't too bad because the only
+    // consequence is that we won't provide autocompletion items).
+    if (Date.now() - startingTime > timeout) {
+      return {
+        err: "timeout",
+      };
+    }
+
+    currentIndex += 1;
+    let resetLastStatement = false;
+    const isWhitespaceChar = c.trim() === "";
+    switch (state) {
+      // Normal JS state.
+      case STATE_NORMAL:
+        if (lastStatement.endsWith("?.") && /\d/.test(c)) {
+          // If the current char is a number, the engine will consider we're not
+          // performing an optional chaining, but a ternary (e.g. x ?.4 : 2).
+          lastStatement = "";
+        }
+
+        // Storing the index of dot of the input string
+        if (c === ".") {
+          dotIndex = currentIndex;
+        }
+
+        // If the last characters were spaces, and the current one is not.
+        if (pendingWhitespaceChars && !isWhitespaceChar) {
+          // If we have a legitimate property/element access, or potential optional
+          // chaining call, we append the spaces.
+          if (c === "[" || c === "." || c === "?") {
+            lastStatement = lastStatement + pendingWhitespaceChars;
+          } else {
+            // if not, we can be sure the statement was over, and we can start a new one.
+            lastStatement = "";
+          }
+          pendingWhitespaceChars = "";
+        }
+
+        if (c == '"') {
+          state = STATE_DQUOTE;
+        } else if (c == "'") {
+          state = STATE_QUOTE;
+        } else if (c == "`") {
+          state = STATE_TEMPLATE_LITERAL;
+        } else if (c == "/") {
+          state = STATE_SLASH;
+        } else if (c == "?") {
+          state = STATE_QUESTION_MARK;
+        } else if (OPERATOR_CHARS_SET.has(c)) {
+          // If the character is an operator, we can update the current statement.
+          resetLastStatement = true;
+        } else if (isWhitespaceChar) {
+          // If the previous char isn't a dot or opening bracket, and the current computed
+          // statement is not a variable/function/class declaration, we track the number
+          // of consecutive spaces, so we can re-use them at some point (or drop them).
+          if (
+            previousNonWhitespaceChar !== "." &&
+            previousNonWhitespaceChar !== "[" &&
+            !NO_AUTOCOMPLETE_PREFIXES.includes(lastStatement)
+          ) {
+            pendingWhitespaceChars += c;
+            continue;
+          }
+        } else if (OPEN_BODY.includes(c)) {
+          // When opening a bracket or a parens, we store the current statement, in order
+          // to be able to retrieve it later.
+          bodyStack.push({
+            token: c,
+            lastStatement,
+            index: currentIndex,
+          });
+          // And we compute a new statement.
+          resetLastStatement = true;
+        } else if (CLOSE_BODY.includes(c)) {
+          const last = bodyStack.pop();
+          if (!last || OPEN_CLOSE_BODY[last.token] != c) {
+            return {
+              err: "syntax error",
+            };
+          }
+          if (c == "}") {
+            resetLastStatement = true;
+          } else {
+            lastStatement = last.lastStatement;
+          }
+        }
+        break;
+
+      // Escaped quote
+      case STATE_ESCAPE_QUOTE:
+        state = STATE_QUOTE;
+        break;
+      case STATE_ESCAPE_DQUOTE:
+        state = STATE_DQUOTE;
+        break;
+      case STATE_ESCAPE_TEMPLATE_LITERAL:
+        state = STATE_TEMPLATE_LITERAL;
+        break;
+
+      // Double quote state > " <
+      case STATE_DQUOTE:
+        if (c == "\\") {
+          state = STATE_ESCAPE_DQUOTE;
+        } else if (c == "\n") {
+          return {
+            err: "unterminated string literal",
+          };
+        } else if (c == '"') {
+          state = STATE_NORMAL;
+        }
+        break;
+
+      // Template literal state > ` <
+      case STATE_TEMPLATE_LITERAL:
+        if (c == "\\") {
+          state = STATE_ESCAPE_TEMPLATE_LITERAL;
+        } else if (c == "`") {
+          state = STATE_NORMAL;
+        }
+        break;
+
+      // Single quote state > ' <
+      case STATE_QUOTE:
+        if (c == "\\") {
+          state = STATE_ESCAPE_QUOTE;
+        } else if (c == "\n") {
+          return {
+            err: "unterminated string literal",
+          };
+        } else if (c == "'") {
+          state = STATE_NORMAL;
+        }
+        break;
+      case STATE_SLASH:
+        if (c == "/") {
+          state = STATE_INLINE_COMMENT;
+        } else if (c == "*") {
+          state = STATE_MULTILINE_COMMENT;
+        } else {
+          lastStatement = "";
+          state = STATE_NORMAL;
+        }
+        break;
+
+      case STATE_INLINE_COMMENT:
+        if (c === "\n") {
+          state = STATE_NORMAL;
+          resetLastStatement = true;
+        }
+        break;
+
+      case STATE_MULTILINE_COMMENT:
+        if (c === "*") {
+          state = STATE_MULTILINE_COMMENT_CLOSE;
+        }
+        break;
+
+      case STATE_MULTILINE_COMMENT_CLOSE:
+        if (c === "/") {
+          state = STATE_NORMAL;
+          resetLastStatement = true;
+        } else {
+          state = STATE_MULTILINE_COMMENT;
+        }
+        break;
+
+      case STATE_QUESTION_MARK:
+        state = STATE_NORMAL;
+        if (c === "?") {
+          // If we have a nullish coalescing operator, we start a new statement
+          resetLastStatement = true;
+        } else if (c !== ".") {
+          // If we're not dealing with optional chaining (?.), it means we have a ternary,
+          // so we are starting a new statement that includes the current character.
+          lastStatement = "";
+        } else {
+          dotIndex = currentIndex;
+        }
+        break;
+    }
+
+    if (!isWhitespaceChar) {
+      previousNonWhitespaceChar = c;
+    }
+    if (resetLastStatement) {
+      lastStatement = "";
+    } else {
+      lastStatement = lastStatement + c;
+    }
+
+    // We update all the open stacks lastStatement so they are up-to-date.
+    bodyStack.forEach(stack => {
+      if (stack.token !== "}") {
+        stack.lastStatement = stack.lastStatement + c;
+      }
+    });
+  }
+
+  let isElementAccess = false;
+  let lastOpeningBracketIndex = -1;
+  if (bodyStack.length === 1 && bodyStack[0].token === "[") {
+    lastStatement = bodyStack[0].lastStatement;
+    lastOpeningBracketIndex = bodyStack[0].index;
+    isElementAccess = true;
+
+    if (
+      state === STATE_DQUOTE ||
+      state === STATE_QUOTE ||
+      state === STATE_TEMPLATE_LITERAL ||
+      state === STATE_ESCAPE_QUOTE ||
+      state === STATE_ESCAPE_DQUOTE ||
+      state === STATE_ESCAPE_TEMPLATE_LITERAL
+    ) {
+      state = STATE_NORMAL;
+    }
+  } else if (pendingWhitespaceChars) {
+    lastStatement = "";
+  }
+
+  const lastCompletionCharIndex = isElementAccess
+    ? lastOpeningBracketIndex
+    : dotIndex;
+
+  const stringBeforeLastCompletionChar = str.slice(0, lastCompletionCharIndex);
+
+  const isPropertyAccess =
+    lastCompletionCharIndex && lastCompletionCharIndex > 0;
+
+  // Compute `isOptionalAccess`, so that we can use it
+  // later for computing `expressionBeforePropertyAccess`.
+  //Check `?.` before `[` for element access ( e.g `a?.["b` or `a  ?. ["b` )
+  // and `?` before `.` for regular property access ( e.g `a?.b` or `a ?. b` )
+  const optionalElementAccessRegex = /\?\.\s*$/;
+  const isOptionalAccess = isElementAccess
+    ? optionalElementAccessRegex.test(stringBeforeLastCompletionChar)
+    : isPropertyAccess &&
+      str.slice(lastCompletionCharIndex - 1, lastCompletionCharIndex + 1) ===
+        "?.";
+
+  // Get the filtered string for the properties (e.g if `document.qu` then `qu`)
+  const matchProp = isPropertyAccess
+    ? str.slice(lastCompletionCharIndex + 1).trimLeft()
+    : null;
+
+  const expressionBeforePropertyAccess = isPropertyAccess
+    ? str.slice(
+        0,
+        // For optional access, we can take all the chars before the last "?" char.
+        isOptionalAccess
+          ? stringBeforeLastCompletionChar.lastIndexOf("?")
+          : lastCompletionCharIndex
+      )
+    : str;
+
+  let mainExpression = lastStatement;
+  if (isPropertyAccess) {
+    if (isOptionalAccess) {
+      // Strip anything before the last `?`.
+      mainExpression = mainExpression.slice(0, mainExpression.lastIndexOf("?"));
+    } else {
+      mainExpression = mainExpression.slice(
+        0,
+        -1 * (str.length - lastCompletionCharIndex)
+      );
+    }
+  }
+
+  mainExpression = mainExpression.trim();
+
+  return {
+    state,
+    isElementAccess,
+    isPropertyAccess,
+    expressionBeforePropertyAccess,
+    lastStatement,
+    mainExpression,
+    matchProp,
+  };
+};
+
+/**
+ * Checks whether the analyzed input string is in an appropriate state to autocomplete, e.g. not
+ * inside a string, or declaring a variable.
+ * @param {object} inputAnalysisState The analyzed string to check
+ * @returns {boolean} Whether the input should be autocompleted
+ */
+exports.shouldInputBeAutocompleted = function(inputAnalysisState) {
+  const { err, state, lastStatement } = inputAnalysisState;
+
+  // There was an error analysing the string.
+  if (err) {
+    return false;
+  }
+
+  // If the current state is not STATE_NORMAL, then we are inside string,
+  // which means that no completion is possible.
+  if (state != STATE_NORMAL) {
+    return false;
+  }
+
+  // Don't complete on just an empty string.
+  if (lastStatement.trim() == "") {
+    return false;
+  }
+
+  if (
+    NO_AUTOCOMPLETE_PREFIXES.some(prefix =>
+      lastStatement.startsWith(prefix + " ")
+    )
+  ) {
+    return false;
+  }
+
+  return true;
+};
+
+/**
+ * Checks whether the analyzed input string is in an appropriate state to be eagerly evaluated.
+ * @param {object} inputAnalysisState
+ * @returns {boolean} Whether the input should be eagerly evaluated
+ */
+exports.shouldInputBeEagerlyEvaluated = function({ lastStatement }) {
+  const inComputedProperty =
+    lastStatement.lastIndexOf("[") !== -1 &&
+    lastStatement.lastIndexOf("[") > lastStatement.lastIndexOf("]");
+
+  const hasPropertyAccess =
+    lastStatement.includes(".") || lastStatement.includes("[");
+
+  return hasPropertyAccess && !inComputedProperty;
+};
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/webconsole/js-property-provider.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/webconsole/js-property-provider.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/webconsole/js-property-provider.js	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/webconsole/js-property-provider.js	2021-10-20 19:28:16.000000000 +0000
@@ -24,6 +24,16 @@
   "resource://gre/modules/reflect.jsm",
   true
 );
+loader.lazyRequireGetter(
+  this,
+  [
+    "analyzeInputString",
+    "shouldInputBeAutocompleted",
+    "shouldInputBeEagerlyEvaluated",
+  ],
+  "devtools/shared/webconsole/analyze-input-string",
+  true
+);
 
 // Provide an easy way to bail out of even attempting an autocompletion
 // if an object has way too many properties. Protects against large objects
@@ -355,401 +365,10 @@
   });
 }
 
-function shouldInputBeEagerlyEvaluated({ lastStatement }) {
-  const inComputedProperty =
-    lastStatement.lastIndexOf("[") !== -1 &&
-    lastStatement.lastIndexOf("[") > lastStatement.lastIndexOf("]");
-
-  const hasPropertyAccess =
-    lastStatement.includes(".") || lastStatement.includes("[");
-
-  return hasPropertyAccess && !inComputedProperty;
-}
-
-function shouldInputBeAutocompleted(inputAnalysisState) {
-  const { err, state, lastStatement } = inputAnalysisState;
-
-  // There was an error analysing the string.
-  if (err) {
-    return false;
-  }
-
-  // If the current state is not STATE_NORMAL, then we are inside of an string
-  // which means that no completion is possible.
-  if (state != STATE_NORMAL) {
-    return false;
-  }
-
-  // Don't complete on just an empty string.
-  if (lastStatement.trim() == "") {
-    return false;
-  }
-
-  if (
-    NO_AUTOCOMPLETE_PREFIXES.some(prefix =>
-      lastStatement.startsWith(prefix + " ")
-    )
-  ) {
-    return false;
-  }
-
-  return true;
-}
-
 function hasArrayIndex(str) {
   return /\[\d+\]$/.test(str);
 }
 
-const STATE_NORMAL = Symbol("STATE_NORMAL");
-const STATE_QUOTE = Symbol("STATE_QUOTE");
-const STATE_DQUOTE = Symbol("STATE_DQUOTE");
-const STATE_TEMPLATE_LITERAL = Symbol("STATE_TEMPLATE_LITERAL");
-const STATE_ESCAPE_QUOTE = Symbol("STATE_ESCAPE_QUOTE");
-const STATE_ESCAPE_DQUOTE = Symbol("STATE_ESCAPE_DQUOTE");
-const STATE_ESCAPE_TEMPLATE_LITERAL = Symbol("STATE_ESCAPE_TEMPLATE_LITERAL");
-const STATE_SLASH = Symbol("STATE_SLASH");
-const STATE_INLINE_COMMENT = Symbol("STATE_INLINE_COMMENT");
-const STATE_MULTILINE_COMMENT = Symbol("STATE_MULTILINE_COMMENT");
-const STATE_MULTILINE_COMMENT_CLOSE = Symbol("STATE_MULTILINE_COMMENT_CLOSE");
-const STATE_QUESTION_MARK = Symbol("STATE_QUESTION_MARK");
-
-const OPEN_BODY = "{[(".split("");
-const CLOSE_BODY = "}])".split("");
-const OPEN_CLOSE_BODY = {
-  "{": "}",
-  "[": "]",
-  "(": ")",
-};
-
-const NO_AUTOCOMPLETE_PREFIXES = ["var", "const", "let", "function", "class"];
-const OPERATOR_CHARS_SET = new Set(";,:=<>+-*%|&^~!".split(""));
-
-/**
- * Analyses a given string to find the last statement that is interesting for
- * later completion.
- *
- * @param   string str
- *          A string to analyse.
- *
- * @returns object
- *          If there was an error in the string detected, then a object like
- *
- *            { err: "ErrorMesssage" }
- *
- *          is returned, otherwise a object like
- *
- *            {
- *              state: STATE_NORMAL|STATE_QUOTE|STATE_DQUOTE,
- *              lastStatement: the last statement in the string,
- *              isElementAccess: boolean that indicates if the lastStatement has an open
- *                               element access (e.g. `x["match`).
- *              isPropertyAccess: boolean indicating if we are accessing property
- *                                (e.g `true` in `var a = {b: 1};a.b`)
- *              matchProp: The part of the expression that should match the properties
- *                         on the mainExpression (e.g. `que` when expression is `document.body.que`)
- *              mainExpression: The part of the expression before any property access,
- *                              (e.g. `a.b` if expression is `a.b.`)
- *              expressionBeforePropertyAccess: The part of the expression before property access
- *                                              (e.g `var a = {b: 1};a` if expression is `var a = {b: 1};a.b`)
- *            }
- */
-// eslint-disable-next-line complexity
-function analyzeInputString(str) {
-  // work variables.
-  const bodyStack = [];
-  let state = STATE_NORMAL;
-  let previousNonWhitespaceChar;
-  let lastStatement = "";
-  let currentIndex = -1;
-  let dotIndex;
-  let pendingWhitespaceChars = "";
-  const TIMEOUT = 2500;
-  const startingTime = Date.now();
-
-  // Use a string iterator in order to handle character with a length >= 2 (e.g. 😎).
-  for (const c of str) {
-    // We are possibly dealing with a very large string that would take a long time to
-    // analyze (and freeze the process). If the function has been running for more than
-    // a given time, we stop the analysis (this isn't too bad because the only
-    // consequence is that we won't provide autocompletion items).
-    if (Date.now() - startingTime > TIMEOUT) {
-      return {
-        err: "timeout",
-      };
-    }
-
-    currentIndex += 1;
-    let resetLastStatement = false;
-    const isWhitespaceChar = c.trim() === "";
-    switch (state) {
-      // Normal JS state.
-      case STATE_NORMAL:
-        if (lastStatement.endsWith("?.") && /\d/.test(c)) {
-          // If the current char is a number, the engine will consider we're not
-          // performing an optional chaining, but a ternary (e.g. x ?.4 : 2).
-          lastStatement = "";
-        }
-
-        // Storing the index of dot of the input string
-        if (c === ".") {
-          dotIndex = currentIndex;
-        }
-
-        // If the last characters were spaces, and the current one is not.
-        if (pendingWhitespaceChars && !isWhitespaceChar) {
-          // If we have a legitimate property/element access, or potential optional
-          // chaining call, we append the spaces.
-          if (c === "[" || c === "." || c === "?") {
-            lastStatement = lastStatement + pendingWhitespaceChars;
-          } else {
-            // if not, we can be sure the statement was over, and we can start a new one.
-            lastStatement = "";
-          }
-          pendingWhitespaceChars = "";
-        }
-
-        if (c == '"') {
-          state = STATE_DQUOTE;
-        } else if (c == "'") {
-          state = STATE_QUOTE;
-        } else if (c == "`") {
-          state = STATE_TEMPLATE_LITERAL;
-        } else if (c == "/") {
-          state = STATE_SLASH;
-        } else if (c == "?") {
-          state = STATE_QUESTION_MARK;
-        } else if (OPERATOR_CHARS_SET.has(c)) {
-          // If the character is an operator, we can update the current statement.
-          resetLastStatement = true;
-        } else if (isWhitespaceChar) {
-          // If the previous char isn't a dot or opening bracket, and the current computed
-          // statement is not a variable/function/class declaration, we track the number
-          // of consecutive spaces, so we can re-use them at some point (or drop them).
-          if (
-            previousNonWhitespaceChar !== "." &&
-            previousNonWhitespaceChar !== "[" &&
-            !NO_AUTOCOMPLETE_PREFIXES.includes(lastStatement)
-          ) {
-            pendingWhitespaceChars += c;
-            continue;
-          }
-        } else if (OPEN_BODY.includes(c)) {
-          // When opening a bracket or a parens, we store the current statement, in order
-          // to be able to retrieve it later.
-          bodyStack.push({
-            token: c,
-            lastStatement,
-            index: currentIndex,
-          });
-          // And we compute a new statement.
-          resetLastStatement = true;
-        } else if (CLOSE_BODY.includes(c)) {
-          const last = bodyStack.pop();
-          if (!last || OPEN_CLOSE_BODY[last.token] != c) {
-            return {
-              err: "syntax error",
-            };
-          }
-          if (c == "}") {
-            resetLastStatement = true;
-          } else {
-            lastStatement = last.lastStatement;
-          }
-        }
-        break;
-
-      // Escaped quote
-      case STATE_ESCAPE_QUOTE:
-        state = STATE_QUOTE;
-        break;
-      case STATE_ESCAPE_DQUOTE:
-        state = STATE_DQUOTE;
-        break;
-      case STATE_ESCAPE_TEMPLATE_LITERAL:
-        state = STATE_TEMPLATE_LITERAL;
-        break;
-
-      // Double quote state > " <
-      case STATE_DQUOTE:
-        if (c == "\\") {
-          state = STATE_ESCAPE_DQUOTE;
-        } else if (c == "\n") {
-          return {
-            err: "unterminated string literal",
-          };
-        } else if (c == '"') {
-          state = STATE_NORMAL;
-        }
-        break;
-
-      // Template literal state > ` <
-      case STATE_TEMPLATE_LITERAL:
-        if (c == "\\") {
-          state = STATE_ESCAPE_TEMPLATE_LITERAL;
-        } else if (c == "`") {
-          state = STATE_NORMAL;
-        }
-        break;
-
-      // Single quote state > ' <
-      case STATE_QUOTE:
-        if (c == "\\") {
-          state = STATE_ESCAPE_QUOTE;
-        } else if (c == "\n") {
-          return {
-            err: "unterminated string literal",
-          };
-        } else if (c == "'") {
-          state = STATE_NORMAL;
-        }
-        break;
-      case STATE_SLASH:
-        if (c == "/") {
-          state = STATE_INLINE_COMMENT;
-        } else if (c == "*") {
-          state = STATE_MULTILINE_COMMENT;
-        } else {
-          lastStatement = "";
-          state = STATE_NORMAL;
-        }
-        break;
-
-      case STATE_INLINE_COMMENT:
-        if (c === "\n") {
-          state = STATE_NORMAL;
-          resetLastStatement = true;
-        }
-        break;
-
-      case STATE_MULTILINE_COMMENT:
-        if (c === "*") {
-          state = STATE_MULTILINE_COMMENT_CLOSE;
-        }
-        break;
-
-      case STATE_MULTILINE_COMMENT_CLOSE:
-        if (c === "/") {
-          state = STATE_NORMAL;
-          resetLastStatement = true;
-        } else {
-          state = STATE_MULTILINE_COMMENT;
-        }
-        break;
-
-      case STATE_QUESTION_MARK:
-        state = STATE_NORMAL;
-        if (c === "?") {
-          // If we have a nullish coalescing operator, we start a new statement
-          resetLastStatement = true;
-        } else if (c !== ".") {
-          // If we're not dealing with optional chaining (?.), it means we have a ternary,
-          // so we are starting a new statement that includes the current character.
-          lastStatement = "";
-        } else {
-          dotIndex = currentIndex;
-        }
-        break;
-    }
-
-    if (!isWhitespaceChar) {
-      previousNonWhitespaceChar = c;
-    }
-    if (resetLastStatement) {
-      lastStatement = "";
-    } else {
-      lastStatement = lastStatement + c;
-    }
-
-    // We update all the open stacks lastStatement so they are up-to-date.
-    bodyStack.forEach(stack => {
-      if (stack.token !== "}") {
-        stack.lastStatement = stack.lastStatement + c;
-      }
-    });
-  }
-
-  let isElementAccess = false;
-  let lastOpeningBracketIndex = -1;
-  if (bodyStack.length === 1 && bodyStack[0].token === "[") {
-    lastStatement = bodyStack[0].lastStatement;
-    lastOpeningBracketIndex = bodyStack[0].index;
-    isElementAccess = true;
-
-    if (
-      state === STATE_DQUOTE ||
-      state === STATE_QUOTE ||
-      state === STATE_TEMPLATE_LITERAL ||
-      state === STATE_ESCAPE_QUOTE ||
-      state === STATE_ESCAPE_DQUOTE ||
-      state === STATE_ESCAPE_TEMPLATE_LITERAL
-    ) {
-      state = STATE_NORMAL;
-    }
-  } else if (pendingWhitespaceChars) {
-    lastStatement = "";
-  }
-
-  const lastCompletionCharIndex = isElementAccess
-    ? lastOpeningBracketIndex
-    : dotIndex;
-
-  const stringBeforeLastCompletionChar = str.slice(0, lastCompletionCharIndex);
-
-  const isPropertyAccess =
-    lastCompletionCharIndex && lastCompletionCharIndex > 0;
-
-  // Compute `isOptionalAccess`, so that we can use it
-  // later for computing `expressionBeforePropertyAccess`.
-  //Check `?.` before `[` for element access ( e.g `a?.["b` or `a  ?. ["b` )
-  // and `?` before `.` for regular property access ( e.g `a?.b` or `a ?. b` )
-  const optionalElementAccessRegex = /\?\.\s*$/;
-  const isOptionalAccess = isElementAccess
-    ? optionalElementAccessRegex.test(stringBeforeLastCompletionChar)
-    : isPropertyAccess &&
-      str.slice(lastCompletionCharIndex - 1, lastCompletionCharIndex + 1) ===
-        "?.";
-
-  // Get the filtered string for the properties (e.g if `document.qu` then `qu`)
-  const matchProp = isPropertyAccess
-    ? str.slice(lastCompletionCharIndex + 1).trimLeft()
-    : null;
-
-  const expressionBeforePropertyAccess = isPropertyAccess
-    ? str.slice(
-        0,
-        // For optional access, we can take all the chars before the last "?" char.
-        isOptionalAccess
-          ? stringBeforeLastCompletionChar.lastIndexOf("?")
-          : lastCompletionCharIndex
-      )
-    : str;
-
-  let mainExpression = lastStatement;
-  if (isPropertyAccess) {
-    if (isOptionalAccess) {
-      // Strip anything before the last `?`.
-      mainExpression = mainExpression.slice(0, mainExpression.lastIndexOf("?"));
-    } else {
-      mainExpression = mainExpression.slice(
-        0,
-        -1 * (str.length - lastCompletionCharIndex)
-      );
-    }
-  }
-
-  mainExpression = mainExpression.trim();
-
-  return {
-    state,
-    isElementAccess,
-    isPropertyAccess,
-    expressionBeforePropertyAccess,
-    lastStatement,
-    mainExpression,
-    matchProp,
-  };
-}
-
 /**
  * For a given environment and constructor name, returns its Debugger.Object wrapped
  * prototype.
@@ -1168,6 +787,3 @@
 
 // Export a version that will throw (for tests)
 exports.FallibleJSPropertyProvider = JSPropertyProvider;
-
-// Export analyzeInputString (for tests)
-exports.analyzeInputString = analyzeInputString;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/webconsole/moz.build firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/webconsole/moz.build
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/webconsole/moz.build	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/webconsole/moz.build	2021-10-20 19:28:16.000000000 +0000
@@ -26,6 +26,7 @@
 )
 
 DevToolsModules(
+    "analyze-input-string.js",
     "js-property-provider.js",
     "network-helper.js",
     "parser-helper.js",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/webconsole/test/xpcshell/test_analyze_input_string.js firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/webconsole/test/xpcshell/test_analyze_input_string.js
--- firefox-trunk-95.0~a1~hg20211017r596111/devtools/shared/webconsole/test/xpcshell/test_analyze_input_string.js	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/devtools/shared/webconsole/test/xpcshell/test_analyze_input_string.js	2021-10-20 19:28:16.000000000 +0000
@@ -5,7 +5,7 @@
 const { require } = ChromeUtils.import("resource://devtools/shared/Loader.jsm");
 const {
   analyzeInputString,
-} = require("devtools/shared/webconsole/js-property-provider");
+} = require("devtools/shared/webconsole/analyze-input-string");
 
 add_task(() => {
   const tests = [
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/base/BrowsingContext.cpp firefox-trunk-95.0~a1~hg20211020r596404/docshell/base/BrowsingContext.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/base/BrowsingContext.cpp	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/base/BrowsingContext.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -2760,15 +2760,7 @@
   PreOrderWalk([&](BrowsingContext* aContext) {
     if (nsIDocShell* shell = aContext->GetDocShell()) {
       if (nsPresContext* pc = shell->GetPresContext()) {
-        // This is a bit of a lie, but it's the code-path that gets taken for
-        // regular system metrics changes via ThemeChanged().
-        // TODO(emilio): The JustThisDocument is a bit suspect here,
-        // prefers-color-scheme also applies to images or such, but the override
-        // means that we could need to render the same image both with "light"
-        // and "dark" appearance, so we just don't bother.
-        pc->MediaFeatureValuesChanged(
-            {MediaFeatureChangeReason::SystemMetricsChange},
-            MediaFeatureChangePropagation::JustThisDocument);
+        pc->RecomputeBrowsingContextDependentData();
       }
     }
   });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/base/CanonicalBrowsingContext.cpp firefox-trunk-95.0~a1~hg20211020r596404/docshell/base/CanonicalBrowsingContext.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/base/CanonicalBrowsingContext.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/base/CanonicalBrowsingContext.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -2477,8 +2477,7 @@
     MOZ_LOG(gSHIPBFCacheLog, LogLevel::Debug, (" * suspended Window"));
   }
   if (aBFCacheCombo & BFCacheStatus::UNLOAD_LISTENER) {
-    MOZ_LOG(gSHIPBFCacheLog, LogLevel::Debug,
-            (" * beforeunload or unload listener"));
+    MOZ_LOG(gSHIPBFCacheLog, LogLevel::Debug, (" * unload listener"));
   }
   if (aBFCacheCombo & BFCacheStatus::REQUEST) {
     MOZ_LOG(gSHIPBFCacheLog, LogLevel::Debug, (" * requests in the loadgroup"));
@@ -2501,6 +2500,9 @@
   if (aBFCacheCombo & BFCacheStatus::HAS_USED_VR) {
     MOZ_LOG(gSHIPBFCacheLog, LogLevel::Debug, (" * used VR"));
   }
+  if (aBFCacheCombo & BFCacheStatus::BEFOREUNLOAD_LISTENER) {
+    MOZ_LOG(gSHIPBFCacheLog, LogLevel::Debug, (" * beforeunload listener"));
+  }
 }
 
 bool CanonicalBrowsingContext::AllowedInBFCache(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/base/nsDocShell.cpp firefox-trunk-95.0~a1~hg20211020r596404/docshell/base/nsDocShell.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/base/nsDocShell.cpp	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/base/nsDocShell.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -6806,6 +6806,8 @@
   enum BFCacheStatusCombo : uint16_t {
     BFCACHE_SUCCESS,
     NOT_ONLY_TOPLEVEL = mozilla::dom::BFCacheStatus::NOT_ONLY_TOPLEVEL_IN_BCG,
+    // If both unload and beforeunload listeners are presented, it'll be
+    // recorded as unload
     UNLOAD = mozilla::dom::BFCacheStatus::UNLOAD_LISTENER,
     UNLOAD_REQUEST = mozilla::dom::BFCacheStatus::UNLOAD_LISTENER |
                      mozilla::dom::BFCacheStatus::REQUEST,
@@ -6826,9 +6828,15 @@
         mozilla::dom::BFCacheStatus::UNLOAD_LISTENER |
         mozilla::dom::BFCacheStatus::REQUEST |
         mozilla::dom::BFCacheStatus::ACTIVE_PEER_CONNECTION,
-    REMOTE_SUBFRAMES = mozilla::dom::BFCacheStatus::CONTAINS_REMOTE_SUBFRAMES
+    REMOTE_SUBFRAMES = mozilla::dom::BFCacheStatus::CONTAINS_REMOTE_SUBFRAMES,
+    BEFOREUNLOAD = mozilla::dom::BFCacheStatus::BEFOREUNLOAD_LISTENER,
   };
 
+  // Beforeunload is recorded as a blocker only if it is the only one to block
+  // bfcache.
+  if (aCombo != mozilla::dom::BFCacheStatus::BEFOREUNLOAD_LISTENER) {
+    aCombo &= ~mozilla::dom::BFCacheStatus::BEFOREUNLOAD_LISTENER;
+  }
   switch (aCombo) {
     case BFCACHE_SUCCESS:
       Telemetry::AccumulateCategorical(
@@ -6848,6 +6856,10 @@
     case UNLOAD:
       Telemetry::AccumulateCategorical(Telemetry::LABELS_BFCACHE_COMBO::Unload);
       break;
+    case BEFOREUNLOAD:
+      Telemetry::AccumulateCategorical(
+          Telemetry::LABELS_BFCACHE_COMBO::Beforeunload);
+      break;
     case UNLOAD_REQUEST:
       Telemetry::AccumulateCategorical(
           Telemetry::LABELS_BFCACHE_COMBO::Unload_Req);
@@ -7887,7 +7899,7 @@
       NS_ENSURE_SUCCESS(rv, rv);
 
       if (!parentSite.Equals(thisSite)) {
-        if (profiler_can_accept_markers()) {
+        if (profiler_thread_is_being_profiled()) {
           nsCOMPtr<nsIURI> prinURI;
           BasePrincipal::Cast(thisPrincipal)->GetURI(getter_AddRefs(prinURI));
           nsPrintfCString marker("Iframe loaded in background: %s",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/browser.ini firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/browser.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/browser.ini	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/browser.ini	2021-10-20 19:28:16.000000000 +0000
@@ -76,6 +76,9 @@
 support-files =
   dummy_iframe_page.html
   TestTopLevelNavigationDelegate.jsm
+skip-if = 
+  os == "linux" && bits == 64 && !debug # Bug 1725277
+  win10_2004 && !debug # Bug 1725277
 [browser_alternate_fixup_middle_click_link.js]
 https_first_disabled = true
 [browser_backforward_userinteraction.js]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/file_bug1688368-1.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/file_bug1688368-1.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/file_bug1688368-1.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/file_bug1688368-1.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -2,7 +2,11 @@
 
 const DELAY = 1 * 1000; // Delay one second before completing the request.
 
-let nsTimer = Components.Constructor("@mozilla.org/timer;1", "nsITimer", "initWithCallback");
+let nsTimer = Components.Constructor(
+  "@mozilla.org/timer;1",
+  "nsITimer",
+  "initWithCallback"
+);
 
 let timer;
 
@@ -20,13 +24,21 @@
 
   // Note: We need to store a reference to the timer to prevent it from being
   // canceled when it's GCed.
-  timer = new nsTimer(() => {
-    var snowmen = "\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083";
-    response.write(snowmen + `
+  timer = new nsTimer(
+    () => {
+      var snowmen =
+        "\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083\u00E2\u0098\u0083";
+      response.write(
+        snowmen +
+          `
 </body>
 </html>
 
-`);
-    response.finish();
-  }, DELAY, Ci.nsITimer.TYPE_ONE_SHOT);
+`
+      );
+      response.finish();
+    },
+    DELAY,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/file_bug1716290-1.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/file_bug1716290-1.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/file_bug1716290-1.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/file_bug1716290-1.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,7 +1,10 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (getState("reloaded") == "reloaded") {
-    response.setHeader("Content-Type", "text/html; charset=windows-1254", false);
+    response.setHeader(
+      "Content-Type",
+      "text/html; charset=windows-1254",
+      false
+    );
     response.write("\u00E4");
   } else {
     response.setHeader("Content-Type", "text/html; charset=Shift_JIS", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/file_bug1716290-2.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/file_bug1716290-2.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/file_bug1716290-2.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/file_bug1716290-2.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (getState("reloaded") == "reloaded") {
     response.setHeader("Content-Type", "text/html", false);
     response.write("<meta charset=iso-2022-kr>\u00E4");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/file_bug1716290-3.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/file_bug1716290-3.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/file_bug1716290-3.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/file_bug1716290-3.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (getState("reloaded") == "reloaded") {
     response.setHeader("Content-Type", "text/html; charset=iso-2022-kr", false);
     response.write("\u00E4");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/file_bug1716290-4.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/file_bug1716290-4.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/file_bug1716290-4.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/file_bug1716290-4.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (getState("reloaded") == "reloaded") {
     response.setHeader("Content-Type", "text/html", false);
     response.write("\u00FE\u00FF\u00E4");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/print_postdata.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/print_postdata.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/browser/print_postdata.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/browser/print_postdata.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,7 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
@@ -13,8 +15,9 @@
     var avail;
     var bytes = [];
 
-    while ((avail = body.available()) > 0)
+    while ((avail = body.available()) > 0) {
       Array.prototype.push.apply(bytes, body.readByteArray(avail));
+    }
 
     var data = String.fromCharCode.apply(null, bytes);
     response.bodyOutputStream.write(data, data.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/chrome/bug89419.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/chrome/bug89419.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/chrome/bug89419.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/chrome/bug89419.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var redirectstate = "/docshell/test/chrome/bug89419.sjs";
   response.setStatusLine("1.1", 302, "Found");
   if (getState(redirectstate) == "") {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/bug413310-post.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/bug413310-post.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/bug413310-post.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/bug413310-post.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,7 +1,10 @@
 function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/html");
-  response.write("<body onload='window.parent.onloadCount++'>" +
-                 request.method + " " +
-		 Date.now() +
-		 "</body>");
+  response.write(
+    "<body onload='window.parent.onloadCount++'>" +
+      request.method +
+      " " +
+      Date.now() +
+      "</body>"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/bug530396-noref.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/bug530396-noref.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/bug530396-noref.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/bug530396-noref.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -3,14 +3,16 @@
   response.setHeader("Cache-Control", "no-cache");
   response.write("<body onload='");
 
-  if (!request.hasHeader('Referer')) {
+  if (!request.hasHeader("Referer")) {
     response.write("window.parent.onloadCount++;");
   }
 
   if (request.queryString == "newwindow") {
-      response.write("if (window.opener) { window.opener.parent.onloadCount++; window.opener.parent.doNextStep(); }");
-      response.write("if (!window.opener) window.close();");
-      response.write("'>");
+    response.write(
+      "if (window.opener) { window.opener.parent.onloadCount++; window.opener.parent.doNextStep(); }"
+    );
+    response.write("if (!window.opener) window.close();");
+    response.write("'>");
   } else {
     response.write("window.parent.doNextStep();'>");
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/double_submit.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/double_submit.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/double_submit.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/double_submit.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -2,7 +2,8 @@
 
 let self = this;
 
-Cu.import("resource://gre/modules/Timer.jsm");
+// eslint-disable-next-line mozilla/use-chromeutils-import
+let { setTimeout } = Cu.import("resource://gre/modules/Timer.jsm");
 
 const CC = Components.Constructor;
 const BinaryInputStream = CC(
@@ -18,7 +19,7 @@
 );
 
 function log(str) {
-//  dump(`LOG: ${str}\n`);
+  //  dump(`LOG: ${str}\n`);
 }
 
 function* generateBody(fragments, size) {
@@ -26,7 +27,7 @@
   let chunkSize = (size / fragments) | 0;
   let remaining = size;
 
-  log(`Chunk size ${chunkSize}`)
+  log(`Chunk size ${chunkSize}`);
   while (remaining > 0) {
     let data = new Uint8Array(Math.min(remaining, chunkSize));
     for (let i = 0; i < data.length; ++i) {
@@ -35,7 +36,7 @@
     }
 
     yield data;
-    log(`Remaining to chunk ${remaining}`)
+    log(`Remaining to chunk ${remaining}`);
     remaining -= data.length;
   }
 }
@@ -47,7 +48,7 @@
     result.push(inputStream.readBytes(available));
   }
 
-  return result.join('');
+  return result.join("");
 }
 
 function now() {
@@ -68,7 +69,9 @@
     message = "bad";
   } else {
     log("Read POST body");
-    let body = new URLSearchParams(readStream(new BinaryInputStream(request.bodyInputStream)));
+    let body = new URLSearchParams(
+      readStream(new BinaryInputStream(request.bodyInputStream))
+    );
     message = body.get("token") || "bad";
     log(`The result was ${message}`);
   }
@@ -81,17 +84,21 @@
   let header = "<!doctype html><!-- ";
   let footer = ` --><script>"use strict"; let target = (opener || parent); target.postMessage('${message}', '*');</script>`;
 
-  log("Set headers")
+  log("Set headers");
   response.setHeader("Content-Type", "text/html", false);
-  response.setHeader("Content-Length", `${size + header.length + footer.length}`, false);
+  response.setHeader(
+    "Content-Length",
+    `${size + header.length + footer.length}`,
+    false
+  );
   response.setStatusLine(request.httpVersion, "200", "OK");
 
   response.processAsync();
   log("Write header");
   response.write(header);
-  log("Write body")
+  log("Write body");
   for (let data of generateBody(fragments, size)) {
-    delay = Math.max(0, delayUntil - now())
+    delay = Math.max(0, delayUntil - now());
     log(`Delay sending fragment for ${delay / fragments}`);
     let failed = false;
     await new Promise(resolve => {
@@ -112,10 +119,10 @@
     }
 
     fragments = Math.max(--fragments, 1);
-    log(`Fragments left ${fragments}`)
+    log(`Fragments left ${fragments}`);
   }
 
-  log("Write footer")
+  log("Write footer");
   response.write(footer);
 
   response.finish();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/file_bug475636.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/file_bug475636.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/file_bug475636.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/file_bug475636.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,10 +1,17 @@
-jsURL = "javascript:" + escape('window.parent.postMessage("JS uri ran", "*");\
+jsURL =
+  "javascript:" +
+  escape(
+    'window.parent.postMessage("JS uri ran", "*");\
 return \'\
 <script>\
 window.parent.postMessage("Able to access private: " +\
   window.parent.private, "*");\
-</script>\'');
-dataURL = "data:text/html," + escape('<!DOCTYPE HTML>\
+</script>\''
+  );
+dataURL =
+  "data:text/html," +
+  escape(
+    '<!DOCTYPE HTML>\
 <script>\
 try {\
   window.parent.postMessage("Able to access private: " +\
@@ -13,11 +20,12 @@
 catch (e) {\
   window.parent.postMessage("pass", "*");\
 }\
-</script>');
+</script>'
+  );
 
 tests = [
-// Plain document should work as normal
-'<!DOCTYPE HTML>\
+  // Plain document should work as normal
+  '<!DOCTYPE HTML>\
 <script>\
 try {\
   window.parent.private;\
@@ -28,62 +36,62 @@
 }\
 </script>',
 
-// refresh to plain doc
-{ refresh: "file_bug475636.sjs?1",
-  doc: '<!DOCTYPE HTML>' },
+  // refresh to plain doc
+  { refresh: "file_bug475636.sjs?1", doc: "<!DOCTYPE HTML>" },
 
-// meta-refresh to plain doc
-'<!DOCTYPE HTML>\
+  // meta-refresh to plain doc
+  '<!DOCTYPE HTML>\
 <head>\
   <meta http-equiv="refresh" content="0; url=file_bug475636.sjs?1">\
 </head>',
 
-// refresh to data url
-{ refresh: dataURL,
-  doc: '<!DOCTYPE HTML>' },
+  // refresh to data url
+  { refresh: dataURL, doc: "<!DOCTYPE HTML>" },
 
-// meta-refresh to data url
-'<!DOCTYPE HTML>\
+  // meta-refresh to data url
+  '<!DOCTYPE HTML>\
 <head>\
-  <meta http-equiv="refresh" content="0; url=' + dataURL + '">\
+  <meta http-equiv="refresh" content="0; url=' +
+    dataURL +
+    '">\
 </head>',
 
-// refresh to js url should not be followed
-{ refresh: jsURL,
-  doc:
-'<!DOCTYPE HTML>\
+  // refresh to js url should not be followed
+  {
+    refresh: jsURL,
+    doc:
+      '<!DOCTYPE HTML>\
 <script>\
 setTimeout(function() {\
   window.parent.postMessage("pass", "*");\
 }, 2000);\
-</script>' },
+</script>',
+  },
 
-// meta refresh to js url should not be followed
-'<!DOCTYPE HTML>\
+  // meta refresh to js url should not be followed
+  '<!DOCTYPE HTML>\
 <head>\
-  <meta http-equiv="refresh" content="0; url=' + jsURL + '">\
+  <meta http-equiv="refresh" content="0; url=' +
+    jsURL +
+    '">\
 </head>\
 <script>\
 setTimeout(function() {\
   window.parent.postMessage("pass", "*");\
 }, 2000);\
-</script>'
+</script>',
 ];
 
-
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   dump("@@@@@@@@@hi there: " + request.queryString + "\n");
   test = tests[parseInt(request.queryString, 10) - 1];
   response.setHeader("Content-Type", "text/html");
 
   if (!test) {
     response.write('<script>parent.postMessage("done", "*");</script>');
-  }
-  else if (typeof test == "string") {
+  } else if (typeof test == "string") {
     response.write(test);
-  }
-  else if (test.refresh) {
+  } else if (test.refresh) {
     response.setHeader("Refresh", "0; url=" + test.refresh);
     response.write(test.doc);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/file_bug580069_2.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/file_bug580069_2.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/file_bug580069_2.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/file_bug580069_2.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,5 +1,8 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/html", false);
-  response.write('<html><body onload=\'parent.page2Load("' + request.method + '")\'>file_bug580069_2.sjs</body></html>');
+  response.write(
+    "<html><body onload='parent.page2Load(\"" +
+      request.method +
+      "\")'>file_bug580069_2.sjs</body></html>"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/file_bug669671.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/file_bug669671.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/file_bug669671.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/file_bug669671.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,14 +1,17 @@
-function handleRequest(request, response)
-{
-  var count = parseInt(getState('count'));
-  if (!count || request.queryString == 'countreset')
+function handleRequest(request, response) {
+  var count = parseInt(getState("count"));
+  if (!count || request.queryString == "countreset") {
     count = 0;
+  }
 
-  setState('count', count + 1 + '');
+  setState("count", count + 1 + "");
 
-  response.setHeader('Content-Type', 'text/html', false);
-  response.setHeader('Cache-Control', 'max-age=0');
-  response.write('<html><body onload="opener.onChildLoad()" ' +
-                 'onunload="parseInt(\'0\')">' +
-                 count + '</body></html>');
+  response.setHeader("Content-Type", "text/html", false);
+  response.setHeader("Cache-Control", "max-age=0");
+  response.write(
+    '<html><body onload="opener.onChildLoad()" ' +
+      "onunload=\"parseInt('0')\">" +
+      count +
+      "</body></html>"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/form_submit.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/form_submit.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/mochitest/form_submit.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/mochitest/form_submit.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,7 +1,5 @@
 "use strict";
 
-Cu.import("resource://gre/modules/Timer.jsm");
-
 const CC = Components.Constructor;
 const BinaryInputStream = CC(
   "@mozilla.org/binaryinputstream;1",
@@ -23,7 +21,7 @@
   if (request.method !== "POST") {
     message = "bad";
   } else {
-    log("Reading request")
+    log("Reading request");
     let available = 0;
     let inputStream = new BinaryInputStream(request.bodyInputStream);
     while ((available = inputStream.available()) > 0) {
@@ -31,10 +29,12 @@
     }
   }
 
-  log("Setting Headers")
+  log("Setting Headers");
   response.setHeader("Content-Type", "text/html", false);
   response.setStatusLine(request.httpVersion, "200", "OK");
   log("Writing body");
-  response.write('<script>"use strict"; let target = opener ? opener : parent; target.postMessage("done", "*");</script>');
-  log("Done")
+  response.write(
+    '<script>"use strict"; let target = opener ? opener : parent; target.postMessage("done", "*");</script>'
+  );
+  log("Done");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/navigation/file_fragment_handling_during_load_frame2.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/navigation/file_fragment_handling_during_load_frame2.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/navigation/file_fragment_handling_during_load_frame2.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/navigation/file_fragment_handling_during_load_frame2.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -7,7 +7,7 @@
   response.setHeader("Cache-Control", "no-cache", false);
   // Wait a bit.
   var s = Date.now();
-  while (Date.now() - s < 1000);
+  while (Date.now() - s < 1000) {}
 
   response.write(`<!DOCTYPE HTML>
   <html>
@@ -16,4 +16,4 @@
     </body>
   </html>
   `);
-}
\ No newline at end of file
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/navigation/redirect_handlers.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/navigation/redirect_handlers.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/navigation/redirect_handlers.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/navigation/redirect_handlers.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -20,7 +20,10 @@
     setState("sessionhistory_do_redirect", "");
 
     response.setStatusLine("1.1", 302, "Found");
-    response.setHeader("Location",
-      "file_session_history_on_redirect_2.html", false);
+    response.setHeader(
+      "Location",
+      "file_session_history_on_redirect_2.html",
+      false
+    );
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/navigation/slow.sjs firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/navigation/slow.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/navigation/slow.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/navigation/slow.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,12 +1,16 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
 
-  timer = Components.classes["@mozilla.org/timer;1"].
-          createInstance(Components.interfaces.nsITimer);
-  timer.init(function() {
-    response.finish();
-  }, 5000, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.init(
+    function() {
+      response.finish();
+    },
+    5000,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 
   response.setStatusLine(null, 200, "OK");
   response.setHeader("Content-Type", "text/plain", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/navigation/test_rate_limit_location_change.html firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/navigation/test_rate_limit_location_change.html
--- firefox-trunk-95.0~a1~hg20211017r596111/docshell/test/navigation/test_rate_limit_location_change.html	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/docshell/test/navigation/test_rate_limit_location_change.html	2021-10-20 19:28:16.000000000 +0000
@@ -29,6 +29,7 @@
     "history.back": () => win.history.back(),
     "history.forward": () => win.history.forward(),
     "history.go": () => win.history.go(-1),
+    "location.href": () => win.location.href = win.location.href + "",
     "location.hash": () => win.location.hash = inc++,
     "location.host": () => win.location.host = win.location.host + "",
     "location.hostname": () => win.location.hostname = win.location.hostname + "",
@@ -36,6 +37,9 @@
     "location.port": () => win.location.port = win.location.port + "",
     "location.protocol": () => win.location.protocol = win.location.protocol + "",
     "location.search": () => win.location.search = win.location.search + "",
+    "location.assign": () => win.location.assign(`${win.location.href}#${inc++}`),
+    "location.replace": () => win.location.replace(`${win.location.href}#${inc++}`),
+    "location.reload": () => win.location.reload(),
   });
 
   async function test() {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/abort/tests/slow.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/abort/tests/slow.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/abort/tests/slow.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/abort/tests/slow.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,11 +1,15 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
 
-  timer = Components.classes["@mozilla.org/timer;1"].
-          createInstance(Components.interfaces.nsITimer);
-  timer.init(function() {
-    response.write("Here the content. But slowly.");
-    response.finish();
-  }, 1000, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.init(
+    function() {
+      response.write("Here the content. But slowly.");
+      response.finish();
+    },
+    1000,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/animation/AnimationEventDispatcher.h firefox-trunk-95.0~a1~hg20211020r596404/dom/animation/AnimationEventDispatcher.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/animation/AnimationEventDispatcher.h	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/animation/AnimationEventDispatcher.h	2021-10-20 19:28:16.000000000 +0000
@@ -52,7 +52,7 @@
         nsCSSPseudoElements::PseudoTypeAsString(aTarget.mPseudoType);
 
     if ((aMessage == eAnimationCancel || aMessage == eAnimationEnd) &&
-        profiler_can_accept_markers()) {
+        profiler_thread_is_being_profiled()) {
       nsCString markerText;
       aAnimationName->ToUTF8String(markerText);
       PROFILER_MARKER_TEXT(
@@ -89,7 +89,7 @@
         nsCSSPseudoElements::PseudoTypeAsString(aTarget.mPseudoType);
 
     if ((aMessage == eTransitionEnd || aMessage == eTransitionCancel) &&
-        profiler_can_accept_markers()) {
+        profiler_thread_is_being_profiled()) {
       nsCString markerText;
       markerText.Assign(nsCSSProps::GetStringValue(aProperty));
       if (aMessage == eTransitionCancel) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/animation/KeyframeEffect.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/animation/KeyframeEffect.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/animation/KeyframeEffect.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/animation/KeyframeEffect.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -39,6 +39,7 @@
 #include "nsPresContextInlines.h"
 #include "nsRefreshDriver.h"
 #include "js/PropertyAndElement.h"  // JS_DefineProperty
+#include "WindowRenderer.h"
 
 namespace mozilla {
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/CCGCScheduler.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/CCGCScheduler.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/CCGCScheduler.cpp	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/CCGCScheduler.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -10,6 +10,103 @@
 #include "mozilla/dom/ScriptSettings.h"
 #include "nsRefreshDriver.h"
 
+/*
+ * GC Scheduling from Firefox
+ * ==========================
+ *
+ * See also GC Scheduling from SpiderMonkey's perspective here:
+ * https://searchfox.org/mozilla-central/source/js/src/gc/Scheduling.h
+ *
+ * From Firefox's perspective GCs can start in 5 different ways:
+ *
+ *  * The JS engine just starts doing a GC for its own reasons (see above).
+ *    Firefox finds out about these via a callback in nsJSEnvironment.cpp
+ *  * PokeGC()
+ *  * PokeFullGC()
+ *  * PokeShrinkingGC()
+ *  * memory-pressure GCs (via a listener in nsJSEnvironment.cpp).
+ *
+ * PokeGC
+ * ------
+ *
+ * void CCGCScheduler::PokeGC(JS::GCReason aReason, JSObject* aObj,
+ *                            TimeDuration aDelay)
+ *
+ * PokeGC provides a way for callers to say "Hey, there may be some memory
+ * associated with this object (via Zone) you can collect."  PokeGC will:
+ *  * add the zone to a set,
+ *  * set flags including what kind of GC to run (SetWantMajorGC),
+ *  * then creates the mGCRunner with a short delay.
+ *
+ * The delay can allow other calls to PokeGC to add their zones so they can
+ * be collected together.
+ *
+ * See below for what happens when mGCRunner fires.
+ *
+ * PokeFullGC
+ * ----------
+ *
+ * void CCGCScheduler::PokeFullGC()
+ *
+ * PokeFullGC will create a timer that will initiate a "full" (all zones)
+ * collection.  This is usually used after a regular collection if a full GC
+ * seems like a good idea (to collect inter-zone references).
+ *
+ * When the timer fires it will:
+ *  * set flags (SetWantMajorGC),
+ *  * start the mGCRunner with zero delay.
+ *
+ * See below for when mGCRunner fires.
+ *
+ * PokeShrinkingGC
+ * ---------------
+ *
+ * void CCGCScheduler::PokeShrinkingGC()
+ *
+ * PokeShrinkingGC is called when Firefox's user is inactive.
+ * Like PokeFullGC, PokeShrinkingGC uses a timer, but the timeout is longer
+ * which should prevent the ShrinkingGC from starting if the user only
+ * glances away for a brief time.  When the timer fires it will:
+ *
+ *  * set flags (SetWantMajorGC),
+ *  * create the mGCRunner.
+ *
+ * There is a check if the user is still inactive in GCRunnerFired), if the
+ * user has become active the shrinking GC is canceled and either a regular
+ * GC (if requested, see mWantAtLeastRegularGC) or no GC is run.
+ *
+ * When mGCRunner fires
+ * --------------------
+ *
+ * When mGCRunner fires it calls GCRunnerFired.  This starts in the
+ * WaitToMajorGC state:
+ *
+ *  * If this is a parent process it jumps to the next state
+ *  * If this is a content process it will ask the parent if now is a good
+ *      time to do a GC.  (MayGCNow)
+ *  * kill the mGCRunner
+ *  * Exit
+ *
+ * Meanwhile the parent process will queue GC requests so that not too many
+ * are running in parallel overwhelming the CPU cores (see
+ * IdleSchedulerParent).
+ *
+ * When the promise from MayGCNow is resolved it will set some
+ * state (NoteReadyForMajorGC) and restore the mGCRunner.
+ *
+ * When the mGCRunner runs a second time (or this is the parent process and
+ * which jumped over the above logic.  It will be in the StartMajorGC state.
+ * It will initiate the GC for real, usually.  If it's a shrinking GC and the
+ * user is now active again it may abort.  See GCRunnerFiredDoGC().
+ *
+ * The runner will then run the first slice of the garbage collection.
+ * Later slices are also run by the runner, the final slice kills the runner
+ * from the GC callback in nsJSEnvironment.cpp.
+ *
+ * There is additional logic in the code to handle concurrent requests of
+ * various kinds.
+ */
+
 namespace mozilla {
 
 void CCGCScheduler::NoteGCBegin() {
@@ -122,6 +219,7 @@
       MOZ_CRASH("Unexpected GCRunnerAction");
 
     case GCRunnerAction::WaitToMajorGC: {
+      MOZ_ASSERT(!mHaveAskedParent, "GCRunner alive after asking the parent");
       RefPtr<CCGCScheduler::MayGCPromise> mbPromise =
           CCGCScheduler::MayGCNow(step.mReason);
       if (!mbPromise) {
@@ -129,10 +227,12 @@
         break;
       }
 
+      mHaveAskedParent = true;
       KillGCRunner();
       mbPromise->Then(
           GetMainThreadSerialEventTarget(), __func__,
           [this](bool aMayGC) {
+            mHaveAskedParent = false;
             if (aMayGC) {
               if (!NoteReadyForMajorGC()) {
                 // Another GC started and maybe completed while waiting.
@@ -150,6 +250,7 @@
             }
           },
           [this](mozilla::ipc::ResponseRejectReason r) {
+            mHaveAskedParent = false;
             if (!InIncrementalGC()) {
               KillGCRunner();
               NoteWontGC();
@@ -302,7 +403,9 @@
         if (!s->mUserIsActive) {
           if (!nsRefreshDriver::IsRegularRateTimerTicking()) {
             s->SetWantMajorGC(JS::GCReason::USER_INACTIVE);
-            s->EnsureGCRunner(0);
+            if (!s->mHaveAskedParent) {
+              s->EnsureGCRunner(0);
+            }
           } else {
             s->PokeShrinkingGC();
           }
@@ -324,7 +427,9 @@
           // set that we want a full GC we will get one eventually.
           s->SetNeedsFullGC();
           s->SetWantMajorGC(JS::GCReason::FULL_GC_TIMER);
-          s->EnsureGCRunner(0);
+          if (!s->mHaveAskedParent) {
+            s->EnsureGCRunner(0);
+          }
         },
         this, StaticPrefs::javascript_options_gc_delay_full(),
         nsITimer::TYPE_ONE_SHOT_LOW_PRIORITY, "FullGCTimerFired");
@@ -344,8 +449,8 @@
     SetNeedsFullGC();
   }
 
-  if (mGCRunner) {
-    // There's already a runner for GC'ing, just return
+  if (mGCRunner || mHaveAskedParent) {
+    // There's already a GC runner, there or will be, so just return.
     return;
   }
 
@@ -420,6 +525,8 @@
 }
 
 void CCGCScheduler::KillGCRunner() {
+  // If we're in an incremental GC then killing the timer is only okay if
+  // we're shutting down.
   MOZ_ASSERT(!(InIncrementalGC() && !mDidShutdown));
   if (mGCRunner) {
     mGCRunner->Cancel();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/CCGCScheduler.h firefox-trunk-95.0~a1~hg20211020r596404/dom/base/CCGCScheduler.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/CCGCScheduler.h	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/CCGCScheduler.h	2021-10-20 19:28:16.000000000 +0000
@@ -170,18 +170,39 @@
   void SetWantMajorGC(JS::GCReason aReason) {
     MOZ_ASSERT(aReason != JS::GCReason::NO_REASON);
 
-    if (mMajorGCReason != JS::GCReason::NO_REASON &&
-        mMajorGCReason != JS::GCReason::USER_INACTIVE &&
-        aReason != JS::GCReason::USER_INACTIVE) {
+    // If the GC being requested is not a shrinking GC set this flag.
+    // If/when the shrinking GC timer fires but the user is active we check
+    // this flag before canceling the GC, so as not to cancel the
+    // non-shrinking GC being requested here.
+    if (aReason != JS::GCReason::USER_INACTIVE) {
       mWantAtLeastRegularGC = true;
     }
-    mMajorGCReason = aReason;
 
     // Force full GCs when called from reftests so that we collect dead zones
     // that have not been scheduled for collection.
     if (aReason == JS::GCReason::DOM_WINDOW_UTILS) {
       SetNeedsFullGC();
     }
+
+    // USER_INACTIVE trumps everything,
+    // FULL_GC_TIMER trumps everything except USER_INACTIVE,
+    // all other reasons just use the latest reason.
+    switch (aReason) {
+      case JS::GCReason::USER_INACTIVE:
+        mMajorGCReason = aReason;
+        break;
+      case JS::GCReason::FULL_GC_TIMER:
+        if (mMajorGCReason != JS::GCReason::USER_INACTIVE) {
+          mMajorGCReason = aReason;
+        }
+        break;
+      default:
+        if (mMajorGCReason != JS::GCReason::USER_INACTIVE &&
+            mMajorGCReason != JS::GCReason::FULL_GC_TIMER) {
+          mMajorGCReason = aReason;
+        }
+        break;
+    }
   }
 
   // Ensure that the current runner does a cycle collection, and trigger a GC
@@ -410,6 +431,10 @@
   // duration (or until it goes too long and is finished synchronously.)
   bool mInIncrementalGC = false;
 
+  // We've asked the parent process if now is a good time to GC (do not ask
+  // again).
+  bool mHaveAskedParent = false;
+
   // The parent process is ready for us to do a major GC.
   bool mReadyForMajorGC = false;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/ChromeUtils.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/ChromeUtils.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/ChromeUtils.cpp	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/ChromeUtils.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -193,7 +193,7 @@
     GlobalObject& aGlobal, const nsACString& aName,
     const ProfilerMarkerOptionsOrDouble& aOptions,
     const Optional<nsACString>& aText) {
-  if (!profiler_can_accept_markers()) {
+  if (!profiler_thread_is_being_profiled()) {
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/Document.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/Document.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/Document.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/Document.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -11060,11 +11060,19 @@
   nsCOMPtr<EventTarget> piTarget = do_QueryInterface(mScriptGlobalObject);
   if (!allowUnloadListeners && piTarget) {
     EventListenerManager* manager = piTarget->GetExistingListenerManager();
-    if (manager && manager->HasUnloadListeners()) {
-      MOZ_LOG(gPageCacheLog, mozilla::LogLevel::Verbose,
-              ("Save of %s blocked due to unload handlers", uri.get()));
-      aBFCacheCombo |= BFCacheStatus::UNLOAD_LISTENER;
-      ret = false;
+    if (manager) {
+      if (manager->HasUnloadListeners()) {
+        MOZ_LOG(gPageCacheLog, mozilla::LogLevel::Verbose,
+                ("Save of %s blocked due to unload handlers", uri.get()));
+        aBFCacheCombo |= BFCacheStatus::UNLOAD_LISTENER;
+        ret = false;
+      }
+      if (manager->HasBeforeUnloadListeners()) {
+        MOZ_LOG(gPageCacheLog, mozilla::LogLevel::Verbose,
+                ("Save of %s blocked due to beforeUnload handlers", uri.get()));
+        aBFCacheCombo |= BFCacheStatus::BEFOREUNLOAD_LISTENER;
+        ret = false;
+      }
     }
   }
 
@@ -17456,21 +17464,9 @@
     return ColorScheme::Light;
   }
 
-  if (auto* bc = GetBrowsingContext()) {
-    switch (bc->Top()->PrefersColorSchemeOverride()) {
-      case dom::PrefersColorSchemeOverride::Dark:
-        return ColorScheme::Dark;
-      case dom::PrefersColorSchemeOverride::Light:
-        return ColorScheme::Light;
-      case dom::PrefersColorSchemeOverride::None:
-      case dom::PrefersColorSchemeOverride::EndGuard_:
-        break;
-    }
-  }
-
   if (nsPresContext* pc = GetPresContext()) {
-    if (pc->IsPrintingOrPrintPreview()) {
-      return ColorScheme::Light;
+    if (auto scheme = pc->GetOverriddenColorScheme()) {
+      return *scheme;
     }
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/Document.h firefox-trunk-95.0~a1~hg20211020r596404/dom/base/Document.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/Document.h	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/Document.h	2021-10-20 19:28:17.000000000 +0000
@@ -304,6 +304,7 @@
   NOT_ONLY_TOPLEVEL_IN_BCG = 1 << 12,    // Status 12
   ABOUT_PAGE = 1 << 13,                  // Status 13
   RESTORING = 1 << 14,                   // Status 14
+  BEFOREUNLOAD_LISTENER = 1 << 15,       // Status 15
 };
 
 }  // namespace dom
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/JSExecutionContext.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/JSExecutionContext.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/JSExecutionContext.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/JSExecutionContext.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -199,7 +199,9 @@
     return mRv;
   }
 
-  mScript = JS::InstantiateGlobalStencil(mCx, options, stencil);
+  JS::InstantiateOptions instantiateOptions(options);
+
+  mScript = JS::InstantiateGlobalStencil(mCx, instantiateOptions, stencil);
   if (!mScript) {
     return NS_ERROR_OUT_OF_MEMORY;
   }
@@ -212,12 +214,13 @@
 }
 
 bool JSExecutionContext::UpdateDebugMetadata() {
-  if (!mCompileOptions.deferDebugMetadata) {
+  JS::InstantiateOptions options(mCompileOptions);
+
+  if (!options.deferDebugMetadata) {
     return true;
   }
-  return JS::UpdateDebugMetadata(mCx, mScript, mCompileOptions,
-                                 mDebuggerPrivateValue, nullptr,
-                                 mDebuggerIntroductionScript, nullptr);
+  return JS::UpdateDebugMetadata(mCx, mScript, options, mDebuggerPrivateValue,
+                                 nullptr, mDebuggerIntroductionScript, nullptr);
 }
 
 nsresult JSExecutionContext::JoinDecode(JS::OffThreadToken** aOffThreadToken) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/Location.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/Location.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/Location.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/Location.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -25,6 +25,7 @@
 #include "nsGlobalWindow.h"
 #include "mozilla/Likely.h"
 #include "nsCycleCollectionParticipant.h"
+#include "mozilla/BasePrincipal.h"
 #include "mozilla/Components.h"
 #include "mozilla/NullPrincipal.h"
 #include "mozilla/ServoStyleConsts.h"
@@ -548,7 +549,13 @@
   SetURI(uri, aSubjectPrincipal, aRv);
 }
 
-void Location::Reload(bool aForceget, ErrorResult& aRv) {
+void Location::Reload(bool aForceget, nsIPrincipal& aSubjectPrincipal,
+                      ErrorResult& aRv) {
+  if (!CallerSubsumes(&aSubjectPrincipal)) {
+    aRv.Throw(NS_ERROR_DOM_SECURITY_ERR);
+    return;
+  }
+
   nsCOMPtr<nsIDocShell> docShell(GetDocShell());
   if (!docShell) {
     return aRv.Throw(NS_ERROR_FAILURE);
@@ -574,6 +581,21 @@
     }
   }
 
+  RefPtr<BrowsingContext> bc = GetBrowsingContext();
+  if (!bc || bc->IsDiscarded()) {
+    return;
+  }
+
+  CallerType callerType = aSubjectPrincipal.IsSystemPrincipal()
+                              ? CallerType::System
+                              : CallerType::NonSystem;
+
+  nsresult rv = bc->CheckLocationChangeRateLimit(callerType);
+  if (NS_FAILED(rv)) {
+    aRv.Throw(rv);
+    return;
+  }
+
   uint32_t reloadFlags = nsIWebNavigation::LOAD_FLAGS_NONE;
 
   if (aForceget) {
@@ -581,7 +603,7 @@
                   nsIWebNavigation::LOAD_FLAGS_BYPASS_PROXY;
   }
 
-  nsresult rv = nsDocShell::Cast(docShell)->Reload(reloadFlags);
+  rv = nsDocShell::Cast(docShell)->Reload(reloadFlags);
   if (NS_FAILED(rv) && rv != NS_BINDING_ABORTED) {
     // NS_BINDING_ABORTED is returned when we attempt to reload a POST result
     // and the user says no at the "do you want to reload?" prompt.  Don't
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/Location.h firefox-trunk-95.0~a1~hg20211020r596404/dom/base/Location.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/Location.h	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/Location.h	2021-10-20 19:28:16.000000000 +0000
@@ -43,14 +43,7 @@
               ErrorResult& aError);
 
   void Reload(bool aForceget, nsIPrincipal& aSubjectPrincipal,
-              ErrorResult& aError) {
-    if (!CallerSubsumes(&aSubjectPrincipal)) {
-      aError.Throw(NS_ERROR_DOM_SECURITY_ERR);
-      return;
-    }
-
-    Reload(aForceget, aError);
-  }
+              ErrorResult& aError);
 
   void GetHref(nsAString& aHref, nsIPrincipal& aSubjectPrincipal,
                ErrorResult& aError) {
@@ -118,8 +111,6 @@
 
   nsresult ToString(nsAString& aString) { return GetHref(aString); }
 
-  void Reload(bool aForceget, ErrorResult& aRv);
-
  protected:
   virtual ~Location();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/moz.build firefox-trunk-95.0~a1~hg20211020r596404/dom/base/moz.build
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/moz.build	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/moz.build	2021-10-20 19:28:16.000000000 +0000
@@ -226,6 +226,7 @@
     "PlacesBookmarkGuid.h",
     "PlacesBookmarkMoved.h",
     "PlacesBookmarkRemoved.h",
+    "PlacesBookmarkTags.h",
     "PlacesBookmarkTime.h",
     "PlacesBookmarkTitle.h",
     "PlacesBookmarkUrl.h",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/Navigator.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/Navigator.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/Navigator.cpp	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/Navigator.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -240,7 +240,13 @@
 
   mWebGpu = nullptr;
 
-  mLocks = nullptr;
+  if (mLocks) {
+    // Unloading a page does not immediately destruct the lock manager actor,
+    // but we want to abort the lock requests as soon as possible. Explicitly
+    // call Shutdown() to do that.
+    mLocks->Shutdown();
+    mLocks = nullptr;
+  }
 
   mSharePromise = nullptr;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsDOMNavigationTiming.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsDOMNavigationTiming.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsDOMNavigationTiming.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsDOMNavigationTiming.cpp	2021-10-20 19:28:17.000000000 +0000
@@ -170,7 +170,7 @@
                   Tracing, "Navigation");
 
   if (IsTopLevelContentDocumentInContentProcess()) {
-    if (profiler_can_accept_markers() || PAGELOAD_LOG_ENABLED()) {
+    if (profiler_thread_is_being_profiled() || PAGELOAD_LOG_ENABLED()) {
       TimeDuration elapsed = mLoadEventEnd - mNavigationStart;
       TimeDuration duration = mLoadEventEnd - mLoadEventStart;
       nsAutoCString spec;
@@ -368,7 +368,7 @@
 
   mTTITimer = nullptr;
 
-  if (profiler_can_accept_markers() || PAGELOAD_LOG_ENABLED()) {
+  if (profiler_thread_is_being_profiled() || PAGELOAD_LOG_ENABLED()) {
     TimeDuration elapsed = mTTFI - mNavigationStart;
     MOZ_ASSERT(elapsed.ToMilliseconds() > 0);
     TimeDuration elapsedLongTask =
@@ -447,7 +447,7 @@
 
   mContentfulComposite = aCompositeEndTime;
 
-  if (profiler_can_accept_markers() || PAGELOAD_LOG_ENABLED()) {
+  if (profiler_thread_is_being_profiled() || PAGELOAD_LOG_ENABLED()) {
     TimeDuration elapsed = mContentfulComposite - mNavigationStart;
     nsAutoCString spec;
     if (mLoadedURI) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsFrameMessageManager.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsFrameMessageManager.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsFrameMessageManager.cpp	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsFrameMessageManager.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -1202,14 +1202,9 @@
   if (stencil) {
     JS::CompileOptions options(cx);
     FillCompileOptionsForCachedStencil(options);
-
-    if (JS::StencilCanLazilyParse(stencil)) {
-      // See TryCacheLoadAndCompileScript.
-      options.setSourceIsLazy(false);
-    }
-
+    JS::InstantiateOptions instantiateOptions(options);
     JS::Rooted<JSScript*> script(
-        cx, JS::InstantiateGlobalStencil(cx, options, stencil));
+        cx, JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil));
 
     if (script) {
       if (aRunInUniqueScope) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsGlobalWindowInner.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsGlobalWindowInner.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsGlobalWindowInner.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsGlobalWindowInner.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -6241,7 +6241,7 @@
   const char* reason = GetTimeoutReasonString(timeout);
 
   nsCString str;
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     TimeDuration originalInterval = timeout->When() - timeout->SubmitTime();
     str.Append(reason);
     str.Append(" with interval ");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsHistory.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsHistory.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsHistory.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsHistory.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -19,6 +19,7 @@
 #include "mozilla/dom/Location.h"
 #include "mozilla/RefPtr.h"
 #include "mozilla/StaticPrefs_dom.h"
+#include "mozilla/BasePrincipal.h"
 
 using namespace mozilla;
 using namespace mozilla::dom;
@@ -137,7 +138,8 @@
   aResult.setNull();
 }
 
-void nsHistory::Go(int32_t aDelta, CallerType aCallerType, ErrorResult& aRv) {
+void nsHistory::Go(int32_t aDelta, nsIPrincipal& aSubjectPrincipal,
+                   ErrorResult& aRv) {
   LOG(("nsHistory::Go(%d)", aDelta));
   nsCOMPtr<nsPIDOMWindowInner> win(do_QueryReferent(mInnerWindow));
   if (!win || !win->HasActiveDocument()) {
@@ -149,7 +151,7 @@
     // "When the go(delta) method is invoked, if delta is zero, the user agent
     // must act as if the location.reload() method was called instead."
     RefPtr<Location> location = win->Location();
-    return location->Reload(false, aRv);
+    return location->Reload(false, aSubjectPrincipal, aRv);
   }
 
   RefPtr<ChildSHistory> session_history = GetSessionHistory();
@@ -163,12 +165,16 @@
           ? win->GetWindowContext()->HasValidTransientUserGestureActivation()
           : false;
 
+  CallerType callerType = aSubjectPrincipal.IsSystemPrincipal()
+                              ? CallerType::System
+                              : CallerType::NonSystem;
+
   // Ignore the return value from Go(), since returning errors from Go() can
   // lead to exceptions and a possible leak of history length
   // AsyncGo throws if we hit the location change rate limit.
   if (StaticPrefs::dom_window_history_async()) {
     session_history->AsyncGo(aDelta, /* aRequireUserInteraction = */ false,
-                             userActivation, aCallerType, aRv);
+                             userActivation, callerType, aRv);
   } else {
     session_history->Go(aDelta, /* aRequireUserInteraction = */ false,
                         userActivation, IgnoreErrors());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsHistory.h firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsHistory.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsHistory.h	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsHistory.h	2021-10-20 19:28:16.000000000 +0000
@@ -45,7 +45,7 @@
                             mozilla::ErrorResult& aRv);
   void GetState(JSContext* aCx, JS::MutableHandle<JS::Value> aResult,
                 mozilla::ErrorResult& aRv) const;
-  void Go(int32_t aDelta, mozilla::dom::CallerType aCallerType,
+  void Go(int32_t aDelta, nsIPrincipal& aSubjectPrincipal,
           mozilla::ErrorResult& aRv);
   void Back(mozilla::dom::CallerType aCallerType, mozilla::ErrorResult& aRv);
   void Forward(mozilla::dom::CallerType aCallerType, mozilla::ErrorResult& aRv);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsJSUtils.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsJSUtils.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsJSUtils.cpp	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsJSUtils.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -90,7 +90,8 @@
     return NS_OK;
   }
 
-  if (!JS::UpdateDebugMetadata(cx, script, aOptions, aPrivateValue,
+  JS::InstantiateOptions instantiateOptions(aOptions);
+  if (!JS::UpdateDebugMetadata(cx, script, instantiateOptions, aPrivateValue,
                                aElementAttributeName, nullptr, nullptr)) {
     return NS_ERROR_FAILURE;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsLineBreaker.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsLineBreaker.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/nsLineBreaker.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/nsLineBreaker.cpp	2021-10-20 19:28:17.000000000 +0000
@@ -14,7 +14,7 @@
 #include "mozilla/intl/MozLocale.h"
 
 using mozilla::intl::LineBreaker;
-using mozilla::intl::Locale;
+using mozilla::intl::MozLocale;
 
 nsLineBreaker::nsLineBreaker()
     : mCurrentWordLanguage(nullptr),
@@ -471,7 +471,7 @@
     mScriptIsChineseOrJapanese = false;
   } else {
     if (aHyphenationLanguage && !mCurrentWordLanguage) {
-      Locale loc = Locale(nsAtomCString(aHyphenationLanguage));
+      MozLocale loc = MozLocale(nsAtomCString(aHyphenationLanguage));
       if (loc.GetScript().IsEmpty()) {
         loc.Maximize();
       }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/PlacesBookmarkTags.h firefox-trunk-95.0~a1~hg20211020r596404/dom/base/PlacesBookmarkTags.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/PlacesBookmarkTags.h	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/PlacesBookmarkTags.h	2021-10-20 19:28:16.000000000 +0000
@@ -0,0 +1,54 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_PlacesBookmarkTags_h
+#define mozilla_dom_PlacesBookmarkTags_h
+
+#include "mozilla/dom/PlacesBookmarkChanged.h"
+
+namespace mozilla {
+namespace dom {
+class PlacesBookmarkTags final : public PlacesBookmarkChanged {
+ public:
+  explicit PlacesBookmarkTags()
+      : PlacesBookmarkChanged(PlacesEventType::Bookmark_tags_changed) {}
+
+  static already_AddRefed<PlacesBookmarkTags> Constructor(
+      const GlobalObject& aGlobal, const PlacesBookmarkTagsInit& aInitDict) {
+    RefPtr<PlacesBookmarkTags> event = new PlacesBookmarkTags();
+    event->mId = aInitDict.mId;
+    event->mItemType = aInitDict.mItemType;
+    event->mUrl = aInitDict.mUrl;
+    event->mGuid = aInitDict.mGuid;
+    event->mParentGuid = aInitDict.mParentGuid;
+    event->mTags = aInitDict.mTags;
+    event->mLastModified = aInitDict.mLastModified;
+    event->mSource = aInitDict.mSource;
+    event->mIsTagging = aInitDict.mIsTagging;
+    return event.forget();
+  }
+
+  JSObject* WrapObject(JSContext* aCx,
+                       JS::Handle<JSObject*> aGivenProto) override {
+    return PlacesBookmarkTags_Binding::Wrap(aCx, this, aGivenProto);
+  }
+
+  const PlacesBookmarkTags* AsPlacesBookmarkTags() const override {
+    return this;
+  }
+
+  void GetTags(nsTArray<nsString>& aTags) const { aTags.Assign(mTags); }
+
+  nsTArray<nsString> mTags;
+
+ private:
+  ~PlacesBookmarkTags() = default;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/PlacesEvent.h firefox-trunk-95.0~a1~hg20211020r596404/dom/base/PlacesEvent.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/PlacesEvent.h	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/PlacesEvent.h	2021-10-20 19:28:16.000000000 +0000
@@ -47,6 +47,9 @@
   virtual const PlacesBookmarkGuid* AsPlacesBookmarkGuid() const {
     return nullptr;
   }
+  virtual const PlacesBookmarkTags* AsPlacesBookmarkTags() const {
+    return nullptr;
+  }
   virtual const PlacesBookmarkTime* AsPlacesBookmarkTime() const {
     return nullptr;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/ShadowRoot.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/ShadowRoot.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/ShadowRoot.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/ShadowRoot.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -753,23 +753,15 @@
   slot->EnqueueSlotChangeEvent();
 }
 
-Element* ShadowRoot::GetFirstFocusable(bool aWithMouse) const {
-  for (nsIContent* child = GetFirstChild(); child;
-       child = child->GetNextNode()) {
-    if (auto* slot = HTMLSlotElement::FromNode(child)) {
-      const nsTArray<RefPtr<nsINode>>& assignedNodes = slot->AssignedNodes();
-      for (const auto& node : assignedNodes) {
-        if (node->IsElement()) {
-          Element* assignedElement = node->AsElement();
-          if (nsIFrame* frame = assignedElement->GetPrimaryFrame()) {
-            if (frame->IsFocusable(aWithMouse)) {
-              return assignedElement;
-            }
-          }
-        }
-      }
-    }
+// Use aParent as the root element and loop through this tree (including slot
+// assigned elements, nested shadow trees) to find the first focusable
+// element.
+static Element* GetFirstFocusableForParent(nsIContent* aParent,
+                                           bool aWithMouse) {
+  FlattenedChildIterator iter(aParent);
 
+  for (nsIContent* child = iter.GetNextChild(); child;
+       child = iter.GetNextChild()) {
     if (child->IsElement()) {
       if (nsIFrame* frame = child->GetPrimaryFrame()) {
         if (frame->IsFocusable(aWithMouse)) {
@@ -778,16 +770,19 @@
       }
     }
 
-    if (ShadowRoot* root = child->GetShadowRoot()) {
-      if (Element* firstFocusable = root->GetFirstFocusable(aWithMouse)) {
-        return firstFocusable;
-      }
+    if (Element* firstFocusable =
+            GetFirstFocusableForParent(child, aWithMouse)) {
+      return firstFocusable;
     }
   }
 
   return nullptr;
 }
 
+Element* ShadowRoot::GetFirstFocusable(bool aWithMouse) const {
+  return GetFirstFocusableForParent(Host(), aWithMouse);
+}
+
 void ShadowRoot::MaybeSlotHostChild(nsIContent& aChild) {
   MOZ_ASSERT(aChild.GetParent() == GetHost());
   // Check to ensure that the child not an anonymous subtree root because even
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/ShadowRoot.h firefox-trunk-95.0~a1~hg20211020r596404/dom/base/ShadowRoot.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/ShadowRoot.h	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/ShadowRoot.h	2021-10-20 19:28:16.000000000 +0000
@@ -68,8 +68,7 @@
   // child from the currently-assigned slot, if any.
   void MaybeUnslotHostChild(nsIContent&);
 
-  // Loop through this tree (including slot assigned elements, nested shadow
-  // trees) to find the first focusable element.
+  // Find the first focusable element in this tree.
   Element* GetFirstFocusable(bool aWithMouse) const;
 
   // Shadow DOM v1
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/browser_bug593387.js firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/browser_bug593387.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/browser_bug593387.js	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/browser_bug593387.js	2021-10-20 19:28:17.000000000 +0000
@@ -13,6 +13,7 @@
     set: [
       ["security.csp.enable", false],
       ["dom.security.skip_about_page_has_csp_assert", true],
+      ["dom.security.https_first", false],
     ],
   });
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/browser_multiple_popups.js firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/browser_multiple_popups.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/browser_multiple_popups.js	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/browser_multiple_popups.js	2021-10-20 19:28:16.000000000 +0000
@@ -3,7 +3,7 @@
  * time (depending on "dom.allow_mulitple_popups" preference value).
  */
 
-const TEST_DOMAIN = "http://example.net";
+const TEST_DOMAIN = "https://example.net";
 const TEST_PATH = "/browser/dom/base/test/";
 const CHROME_DOMAIN = "chrome://mochitests/content";
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/browser_use_counters.js firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/browser_use_counters.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/browser_use_counters.js	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/browser_use_counters.js	2021-10-20 19:28:17.000000000 +0000
@@ -2,7 +2,7 @@
 
 requestLongerTimeout(2);
 
-const gHttpTestRoot = "http://example.com/browser/dom/base/test/";
+const gHttpTestRoot = "https://example.com/browser/dom/base/test/";
 
 /**
  * Enable local telemetry recording for the duration of the tests.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug1576154.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug1576154.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug1576154.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug1576154.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,8 +1,8 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine("1.1", 500, "Internal Server Error");
   response.setHeader("Content-Type", "image/svg+xml", false);
 
-  let body = "<svg xmlns='http://www.w3.org/2000/svg' width='70' height='0'></svg>";
+  let body =
+    "<svg xmlns='http://www.w3.org/2000/svg' width='70' height='0'></svg>";
   response.bodyOutputStream.write(body, body.length);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug282547.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug282547.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug282547.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug282547.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,8 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(null, 401, "Unauthorized");
 
-  response.setHeader("WWW-Authenticate", "basic realm=\"restricted\"", false);
+  response.setHeader("WWW-Authenticate", 'basic realm="restricted"', false);
 
   response.setHeader("Access-Control-Allow-Origin", "*", false);
   response.setHeader("Access-Control-Allow-Credentials", "true", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug435425_redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug435425_redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug435425_redirect.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug435425_redirect.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,6 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(null, 302, "Moved");
   response.setHeader("Location", "http://nosuchdomain.localhost", false);
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug435425.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug435425.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug435425.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug435425.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,10 +1,11 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
   if (request.method == "GET") {
     response.write(request.queryString);
@@ -14,11 +15,11 @@
     var avail;
     var bytes = [];
 
-    while ((avail = body.available()) > 0)
+    while ((avail = body.available()) > 0) {
       Array.prototype.push.apply(bytes, body.readByteArray(avail));
+    }
 
     var data = String.fromCharCode.apply(null, bytes);
     response.bodyOutputStream.write(data, data.length);
   }
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug444546.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug444546.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug444546.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug444546.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,20 +1,21 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
 
   var body = new BinaryInputStream(request.bodyInputStream);
 
   var avail;
   var bytes = [];
-  while ((avail = body.available()) > 0)
+  while ((avail = body.available()) > 0) {
     Array.prototype.push.apply(bytes, body.readByteArray(avail));
+  }
 
   var data = String.fromCharCode.apply(null, bytes);
   response.bodyOutputStream.write(data, data.length);
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug457746.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug457746.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug457746.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug457746.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,11 +1,10 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain; charset=ISO-8859-1", false);
-  const body = [0xC1];
-  var bos = Components.classes["@mozilla.org/binaryoutputstream;1"]
-      .createInstance(Components.interfaces.nsIBinaryOutputStream);
+  const body = [0xc1];
+  var bos = Components.classes[
+    "@mozilla.org/binaryoutputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryOutputStream);
   bos.setOutputStream(response.bodyOutputStream);
 
   bos.writeByteArray(body);
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug461735-redirect1.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug461735-redirect1.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug461735-redirect1.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug461735-redirect1.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,4 +1,8 @@
 function handleRequest(request, response) {
   response.setStatusLine(null, 302, "Found");
-  response.setHeader("Location", "http://example.com/tests/dom/base/test/bug461735-post-redirect.js", false);
+  response.setHeader(
+    "Location",
+    "http://example.com/tests/dom/base/test/bug461735-post-redirect.js",
+    false
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug461735-redirect2.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug461735-redirect2.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug461735-redirect2.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug461735-redirect2.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,4 +1,8 @@
 function handleRequest(request, response) {
   response.setStatusLine(null, 302, "Found");
-  response.setHeader("Location", "http://mochi.test:8888/tests/dom/base/test/bug461735-post-redirect.js", false);
+  response.setHeader(
+    "Location",
+    "http://mochi.test:8888/tests/dom/base/test/bug461735-post-redirect.js",
+    false
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug466080.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug466080.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug466080.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug466080.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,18 +1,14 @@
+function handleRequest(request, response) {
+  var body = "loaded";
+  var origin = "localhost";
+  try {
+    var origin = request.getHeader("Origin");
+  } catch (e) {}
 
-function handleRequest(request, response)
-{
-    var body = "loaded";
-    var origin = "localhost";
-    try {
-        var origin = request.getHeader("Origin");
-     } catch(e) {}
-    
-    response.setHeader("Access-Control-Allow-Origin",
-                        origin,
-                        false);
-    response.setHeader("Access-Control-Allow-Credentials", "true", false);
-    response.setHeader("Access-Control-Allow-Methods", "XMETHOD", false);
-    response.setHeader("Connection", "Keep-alive", false);
+  response.setHeader("Access-Control-Allow-Origin", origin, false);
+  response.setHeader("Access-Control-Allow-Credentials", "true", false);
+  response.setHeader("Access-Control-Allow-Methods", "XMETHOD", false);
+  response.setHeader("Connection", "Keep-alive", false);
 
-    response.bodyOutputStream.write(body, body.length);
+  response.bodyOutputStream.write(body, body.length);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug475156.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug475156.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug475156.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug475156.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,27 +1,23 @@
-function handleRequest(request, response)
-{
-  if (request.queryString == "")
-  {
-    var etag = request.hasHeader("If-Match") ? request.getHeader("If-Match") : null;
-    if (!etag || etag == getState("etag"))
-    {
+function handleRequest(request, response) {
+  if (request.queryString == "") {
+    var etag = request.hasHeader("If-Match")
+      ? request.getHeader("If-Match")
+      : null;
+    if (!etag || etag == getState("etag")) {
       response.setStatusLine(request.httpVersion, 200, "Ok");
       response.setHeader("Content-Type", "text/html");
       response.setHeader("ETag", getState("etag"));
       response.setHeader("Cache-control", "max-age=36000");
       response.write(getState("etag"));
+    } else if (etag) {
+      response.setStatusLine(request.httpVersion, 412, "Precondition Failed");
     }
-    else if (etag)
-    {
-      response.setStatusLine(request.httpVersion, 412, "Precondition Failed");        
-    }
-  }
-  else
-  {
+  } else {
     var etag = request.queryString.match(/^etag=(.*)$/);
-    if (etag)
+    if (etag) {
       setState("etag", etag[1]);
-      
+    }
+
     response.setStatusLine(request.httpVersion, 204, "No content");
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug482935.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug482935.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug482935.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug482935.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -3,7 +3,7 @@
 
   try {
     body = request.getHeader("X-Request");
-  } catch(e) {
+  } catch (e) {
     body = "request.getHeader() failed! Exception: " + e;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug540854.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug540854.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug540854.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug540854.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,18 +1,20 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
 
   var body = new BinaryInputStream(request.bodyInputStream);
 
   var avail;
   var bytes = [];
-  while ((avail = body.available()) > 0)
+  while ((avail = body.available()) > 0) {
     Array.prototype.push.apply(bytes, body.readByteArray(avail));
+  }
 
   var data = String.fromCharCode.apply(null, bytes);
   response.bodyOutputStream.write(data, data.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug638112.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug638112.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug638112.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug638112.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,26 +1,24 @@
-function getInputStream(path)
-{
-  var file = Components.classes["@mozilla.org/file/directory_service;1"].
-                        getService(Components.interfaces.nsIProperties).
-                        get("CurWorkD", Components.interfaces.nsIFile);
-  var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
-                        createInstance(Components.interfaces.nsIFileInputStream);
+function getInputStream(path) {
+  var file = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
+  var fis = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   var split = path.split("/");
-  for(var i = 0; i < split.length; ++i) {
+  for (var i = 0; i < split.length; ++i) {
     file.append(split[i]);
   }
   fis.init(file, -1, -1, false);
   return fis;
 }
 
-
-
-function handleRequest(request, response)
-{
-  var inputStream = getInputStream("tests/dom/base/test/bug638112-response.txt")
+function handleRequest(request, response) {
+  var inputStream = getInputStream(
+    "tests/dom/base/test/bug638112-response.txt"
+  );
   response.seizePower();
-  response.bodyOutputStream.writeFrom(inputStream,
-                                      inputStream.available());
+  response.bodyOutputStream.writeFrom(inputStream, inputStream.available());
   response.finish();
   inputStream.close();
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug704320_counter.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug704320_counter.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug704320_counter.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug704320_counter.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,44 +1,47 @@
 // Handle counting loads for bug 704320.
 
-const SHARED_KEY="bug704320_counter";
-const DEFAULT_STATE = {'css': {'count': 0, 'referrers': []},
-                       'img': {'count': 0, 'referrers': []},
-                       'js':  {'count': 0, 'referrers': []}};
-const TYPE_MAP = {'css': 'text/css',
-                  'js':  'application/javascript',
-                  'img': 'image/png',
-                  'html': 'text/html'};
+const SHARED_KEY = "bug704320_counter";
+const DEFAULT_STATE = {
+  css: { count: 0, referrers: [] },
+  img: { count: 0, referrers: [] },
+  js: { count: 0, referrers: [] },
+};
+const TYPE_MAP = {
+  css: "text/css",
+  js: "application/javascript",
+  img: "image/png",
+  html: "text/html",
+};
 
 // Writes an image to the response
-function WriteOutImage(response)
-{
+function WriteOutImage(response) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
   file.append("test");
   file.append("mochitest");
-  file.append('blue.png');
+  file.append("blue.png");
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
   response.bodyOutputStream.writeFrom(fileStream, fileStream.available());
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
   var referrerLevel = "none";
-  if (request.hasHeader('Referer')) {
-    let referrer = request.getHeader('Referer');
+  if (request.hasHeader("Referer")) {
+    let referrer = request.getHeader("Referer");
     if (referrer.indexOf("bug704320") > 0) {
       referrerLevel = "full";
     } else if (referrer == "http://mochi.test:8888/") {
@@ -47,7 +50,7 @@
   }
 
   var state = getSharedState(SHARED_KEY);
-  if (state === '') {
+  if (state === "") {
     state = DEFAULT_STATE;
   } else {
     state = JSON.parse(state);
@@ -55,7 +58,6 @@
 
   response.setStatusLine(request.httpVersion, 200, "OK");
 
-
   //avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
@@ -73,20 +75,20 @@
     return;
   }
 
-  if ('type' in query) {
+  if ("type" in query) {
     state[query.type].count++;
     response.setHeader("Content-Type", TYPE_MAP[query.type], false);
     if (state[query.type].referrers.indexOf(referrerLevel) < 0) {
       state[query.type].referrers.push(referrerLevel);
     }
 
-    if (query.type == 'img') {
+    if (query.type == "img") {
       WriteOutImage(response);
     }
   }
 
-  if ('content' in query) {
-    response.write(unescape(query['content']));
+  if ("content" in query) {
+    response.write(unescape(query.content));
   }
 
   setSharedState(SHARED_KEY, JSON.stringify(state));
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug704320.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug704320.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug704320.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug704320.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,20 +1,46 @@
-var BASE_URL = 'example.com/tests/dom/base/test/bug704320.sjs';
+var BASE_URL = "example.com/tests/dom/base/test/bug704320.sjs";
 
 function createTestUrl(schemeFrom, schemeTo, policy, action, type) {
-  return schemeTo + '://' + BASE_URL + '?' +
-         'action=' + action + '&' +
-         'scheme=' + schemeFrom + '-to-' + schemeTo + '&' +
-         'policy=' + policy + '&' +
-         'type=' + type;
+  return (
+    schemeTo +
+    "://" +
+    BASE_URL +
+    "?" +
+    "action=" +
+    action +
+    "&" +
+    "scheme=" +
+    schemeFrom +
+    "-to-" +
+    schemeTo +
+    "&" +
+    "policy=" +
+    policy +
+    "&" +
+    "type=" +
+    type
+  );
 }
 
 function create2ndLevelIframeUrl(schemeFrom, schemeTo, policy, type) {
-  return schemeFrom + '://' + BASE_URL + '?' +
-         'action=create-2nd-level-iframe&' +
-         'scheme-from=' + schemeFrom + '&' +
-         'scheme-to=' + schemeTo + '&' +
-         'policy=' + policy + '&' +
-         'type=' + type;
+  return (
+    schemeFrom +
+    "://" +
+    BASE_URL +
+    "?" +
+    "action=create-2nd-level-iframe&" +
+    "scheme-from=" +
+    schemeFrom +
+    "&" +
+    "scheme-to=" +
+    schemeTo +
+    "&" +
+    "policy=" +
+    policy +
+    "&" +
+    "type=" +
+    type
+  );
 }
 
 // Creates the following test cases for the specified scheme and referrer
@@ -46,68 +72,113 @@
 // results.
 function createTest(schemeFrom, schemeTo, policy, optionalEarlierPolicy) {
   var _createTestUrl = createTestUrl.bind(
-      null, schemeFrom, schemeTo, policy, 'test');
+    null,
+    schemeFrom,
+    schemeTo,
+    policy,
+    "test"
+  );
 
   var _create2ndLevelIframeUrl = create2ndLevelIframeUrl.bind(
-      null, schemeFrom, schemeTo, policy);
-
-  var metaReferrerPolicyString = '';
-  if (optionalEarlierPolicy && optionalEarlierPolicy != '') {
-    metaReferrerPolicyString += '<meta name="referrer" content="' + optionalEarlierPolicy + '">\n';
+    null,
+    schemeFrom,
+    schemeTo,
+    policy
+  );
+
+  var metaReferrerPolicyString = "";
+  if (optionalEarlierPolicy && optionalEarlierPolicy != "") {
+    metaReferrerPolicyString +=
+      '<meta name="referrer" content="' + optionalEarlierPolicy + '">\n';
   }
   metaReferrerPolicyString += '<meta name="referrer" content="' + policy + '">';
 
-  return '<!DOCTYPE HTML>\n\
+  return (
+    "<!DOCTYPE HTML>\n\
          <html>\n\
          <head>\n\
-	    '+metaReferrerPolicyString+'\n\
-           <link rel="stylesheet" type="text/css" href="' + _createTestUrl('stylesheet') + '">\n\
+	    " +
+    metaReferrerPolicyString +
+    '\n\
+           <link rel="stylesheet" type="text/css" href="' +
+    _createTestUrl("stylesheet") +
+    '">\n\
            <style type="text/css">\n\
-             @import "' + _createTestUrl('import-css') + '";\n\
+             @import "' +
+    _createTestUrl("import-css") +
+    '";\n\
              @font-face {\n\
                font-family: "Fake Serif Bold";\n\
-               src: url("' + _createTestUrl('font-face') + '");\n\
+               src: url("' +
+    _createTestUrl("font-face") +
+    '");\n\
              }\n\
              body {\n\
                font-family: "Fake Serif Bold", serif;\n\
-               background: url("' + _createTestUrl('bg-url') + '");\n\
+               background: url("' +
+    _createTestUrl("bg-url") +
+    '");\n\
              }\n\
            </style>\n\
          </head>\n\
          <body>\n\
-           <script src="' + _createTestUrl('script') + '"></script>\n\
-           <img src="' + _createTestUrl('img') + '"></img>\n\
-           <iframe src="' + _createTestUrl('iframe') + '"></iframe>\n\
-           <audio src="' + _createTestUrl('audio') + '"></audio>\n\
-           <video src="' + _createTestUrl('video') + '"></video>\n\
-           <object type="bogus" data="' + _createTestUrl('object') + '"></object>\n\
-           <object type="image/svg+xml" data="' + _createTestUrl('object-svg') + '"></object>\n\
-           <a id="link" href="' + _createTestUrl('link') + '" ping="' + _createTestUrl('link-ping') + '"></a>\n\
-           <iframe src="' + _create2ndLevelIframeUrl('form') + '"></iframe>\n\
-           <iframe src="' + _create2ndLevelIframeUrl('window.location') + '"></iframe>\n\
+           <script src="' +
+    _createTestUrl("script") +
+    '"></script>\n\
+           <img src="' +
+    _createTestUrl("img") +
+    '"></img>\n\
+           <iframe src="' +
+    _createTestUrl("iframe") +
+    '"></iframe>\n\
+           <audio src="' +
+    _createTestUrl("audio") +
+    '"></audio>\n\
+           <video src="' +
+    _createTestUrl("video") +
+    '"></video>\n\
+           <object type="bogus" data="' +
+    _createTestUrl("object") +
+    '"></object>\n\
+           <object type="image/svg+xml" data="' +
+    _createTestUrl("object-svg") +
+    '"></object>\n\
+           <a id="link" href="' +
+    _createTestUrl("link") +
+    '" ping="' +
+    _createTestUrl("link-ping") +
+    '"></a>\n\
+           <iframe src="' +
+    _create2ndLevelIframeUrl("form") +
+    '"></iframe>\n\
+           <iframe src="' +
+    _create2ndLevelIframeUrl("window.location") +
+    '"></iframe>\n\
            <script>\n\
               var _testFinished = 0\n\
              (function() {\n\
                var x = new XMLHttpRequest();\n\
-               x.open("GET", "' + _createTestUrl('xmlhttprequest') + '");\n\
+               x.open("GET", "' +
+    _createTestUrl("xmlhttprequest") +
+    '");\n\
                x.send();\n\
              })();\n\
              (function() {\n\
-               var eventSource = new EventSource("' + _createTestUrl('eventsource') + '");\n\
+               var eventSource = new EventSource("' +
+    _createTestUrl("eventsource") +
+    '");\n\
              })();' +
-
-             // LOAD EVENT (most of the tests)
-             // fires when the resources for the page are loaded
-             'var _isLoaded = false;\n\
+    // LOAD EVENT (most of the tests)
+    // fires when the resources for the page are loaded
+    'var _isLoaded = false;\n\
              window.addEventListener("load", function() {\n\
                this._isLoaded = true;\n\
                this.checkForFinish();\n\
              }.bind(window), false);' +
-
-             // WINDOW.OPEN test
-             // listen for incoming status from window.open, close the window
-             // and check if we're done.
-             'var _openedWindowLoaded = false;\n\
+    // WINDOW.OPEN test
+    // listen for incoming status from window.open, close the window
+    // and check if we're done.
+    'var _openedWindowLoaded = false;\n\
              window.addEventListener("message", function(message) {\n\
                if (message.data == "window.open") {\n\
                  this._openedWindowLoaded = true;\n\
@@ -115,13 +186,14 @@
                  this.checkForFinish();\n\
                }\n\
              }.bind(window), false);\n\
-             var win = window.open("' + _createTestUrl('window.open') + '", "");' +
-
-             // called by the two things that must complete: window.open page
-             // and the window load event.  When both are complete, this
-             // "finishes" the iframe subtest by clicking the link.
-             // _testFinished avoids calling this function twice (which may happen)
-             'function checkForFinish() {\n\
+             var win = window.open("' +
+    _createTestUrl("window.open") +
+    '", "");' +
+    // called by the two things that must complete: window.open page
+    // and the window load event.  When both are complete, this
+    // "finishes" the iframe subtest by clicking the link.
+    // _testFinished avoids calling this function twice (which may happen)
+    'function checkForFinish() {\n\
                if (window._isLoaded && window._openedWindowLoaded && !window._testFinished) {\n\
                  window._testFinished = 1;\n\
                  document.getElementById("link").click();\n\
@@ -129,59 +201,87 @@
              }\n\
            </script>\n\
          </body>\n\
-         </html>';
+         </html>'
+  );
 }
 
 function createIframedFormTest(schemeFrom, schemeTo, policy) {
-  var actionUrl = schemeTo + '://' + BASE_URL;
+  var actionUrl = schemeTo + "://" + BASE_URL;
 
-  return '<!DOCTYPE HTML>\n\
+  return (
+    '<!DOCTYPE HTML>\n\
          <html>\n\
          <head>\n\
-           <meta name="referrer" content="' + policy + '">\n\
+           <meta name="referrer" content="' +
+    policy +
+    '">\n\
          </head>\n\
          <body>\n\
-           <form id="form" action="' + actionUrl + '">\n\
+           <form id="form" action="' +
+    actionUrl +
+    '">\n\
              <input type="hidden" name="action" value="test">\n\
-             <input type="hidden" name="scheme" value="' + schemeFrom + '-to-' + schemeTo + '">\n\
-             <input type="hidden" name="policy" value="' + policy + '">\n\
+             <input type="hidden" name="scheme" value="' +
+    schemeFrom +
+    "-to-" +
+    schemeTo +
+    '">\n\
+             <input type="hidden" name="policy" value="' +
+    policy +
+    '">\n\
              <input type="hidden" name="type" value="form">\n\
            </form>\n\
            <script>\n\
              document.getElementById("form").submit();\n\
            </script>\n\
          </body>\n\
-         </html>';
+         </html>'
+  );
 }
 
 function createIframedWindowLocationTest(schemeFrom, schemeTo, policy) {
   var url = createTestUrl(
-      schemeFrom, schemeTo, policy, 'test', 'window.location');
+    schemeFrom,
+    schemeTo,
+    policy,
+    "test",
+    "window.location"
+  );
 
-  return '<!DOCTYPE HTML>\n\
+  return (
+    '<!DOCTYPE HTML>\n\
          <html>\n\
          <head>\n\
-           <meta name="referrer" content="' + policy + '">\n\
+           <meta name="referrer" content="' +
+    policy +
+    '">\n\
          </head>\n\
          <body>\n\
            <script>\n\
-            window.location = "' + url + '";\n\
+            window.location = "' +
+    url +
+    '";\n\
            </script>\n\
          </body>\n\
-         </html>';
+         </html>'
+  );
 }
 
 function createPolicyTest(policy, optionalEarlierPolicy) {
-  var metaReferrerPolicyString = '';
-  if (optionalEarlierPolicy && optionalEarlierPolicy != '') {
-    metaReferrerPolicyString += '<meta name="referrer" content="' + optionalEarlierPolicy + '">\n';
+  var metaReferrerPolicyString = "";
+  if (optionalEarlierPolicy && optionalEarlierPolicy != "") {
+    metaReferrerPolicyString +=
+      '<meta name="referrer" content="' + optionalEarlierPolicy + '">\n';
   }
   metaReferrerPolicyString += '<meta name="referrer" content="' + policy + '">';
 
-  return '<!DOCTYPE HTML>\n\
+  return (
+    "<!DOCTYPE HTML>\n\
           <html>\n\
           <head>\n\
-	    '+metaReferrerPolicyString+'\n\
+	    " +
+    metaReferrerPolicyString +
+    '\n\
             <script type="text/javascript" src="/tests/dom/base/test/file_bug704320_preload_common.js"></script>\n\
           </head>\n\
           <body>\n\
@@ -190,53 +290,55 @@
             <img src="http://example.com/tests/dom/base/test/bug704320_counter.sjs?type=img"\n\
                     onload="incrementLoad2(\'img\', 2);">\n\
           </body>\n\
-          </html>';
+          </html>'
+  );
 }
 
 function handleRequest(request, response) {
-  var sharedKey = 'bug704320.sjs';
-  var params = request.queryString.split('&');
-  var action = params[0].split('=')[1];
+  var sharedKey = "bug704320.sjs";
+  var params = request.queryString.split("&");
+  var action = params[0].split("=")[1];
 
-  if (action === 'create-1st-level-iframe') {
+  if (action === "create-1st-level-iframe") {
     // ?action=create-1st-level-iframe&scheme-from=http&scheme-to=https&policy=origin
-    var schemeFrom = params[1].split('=')[1];
-    var schemeTo = params[2].split('=')[1];
-    var policy = params[3].split('=')[1];
-    var optionalEarlierPolicy = '';
+    var schemeFrom = params[1].split("=")[1];
+    var schemeTo = params[2].split("=")[1];
+    var policy = params[3].split("=")[1];
+    var optionalEarlierPolicy = "";
     if (params[4]) {
-      optionalEarlierPolicy = params[4].split('=')[1];
+      optionalEarlierPolicy = params[4].split("=")[1];
     }
 
-    response.setHeader('Content-Type', 'text/html; charset=utf-8', false);
-    response.setHeader('Cache-Control', 'no-cache', false);
-    response.write(createTest(schemeFrom, schemeTo, policy, optionalEarlierPolicy));
-  }
-  else if (action === 'create-2nd-level-iframe') {
+    response.setHeader("Content-Type", "text/html; charset=utf-8", false);
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.write(
+      createTest(schemeFrom, schemeTo, policy, optionalEarlierPolicy)
+    );
+  } else if (action === "create-2nd-level-iframe") {
     // ?action=create-2nd-level-iframe&scheme-from=http&scheme-to=https&policy=origin&type=form"
-    var schemeFrom = params[1].split('=')[1];
-    var schemeTo = params[2].split('=')[1];
-    var policy = params[3].split('=')[1];
-    var type = params[4].split('=')[1];
+    var schemeFrom = params[1].split("=")[1];
+    var schemeTo = params[2].split("=")[1];
+    var policy = params[3].split("=")[1];
+    var type = params[4].split("=")[1];
 
-    response.setHeader('Content-Type', 'text/html; charset=utf-8', false);
-    response.setHeader('Cache-Control', 'no-cache', false);
+    response.setHeader("Content-Type", "text/html; charset=utf-8", false);
+    response.setHeader("Cache-Control", "no-cache", false);
 
-    if (type === 'form') {
+    if (type === "form") {
       response.write(createIframedFormTest(schemeFrom, schemeTo, policy));
-    } else if (type === 'window.location') {
-      response.write(createIframedWindowLocationTest(
-            schemeFrom, schemeTo, policy));
+    } else if (type === "window.location") {
+      response.write(
+        createIframedWindowLocationTest(schemeFrom, schemeTo, policy)
+      );
     }
-  }
-  else if (action === 'test') {
+  } else if (action === "test") {
     // ?action=test&scheme=http-to-https&policy=origin&type=img
-    var scheme = params[1].split('=')[1];
-    var policy = params[2].split('=')[1];
-    var type = params[3].split('=')[1];
+    var scheme = params[1].split("=")[1];
+    var policy = params[2].split("=")[1];
+    var type = params[3].split("=")[1];
     var result = getSharedState(sharedKey);
 
-    if (result === '') {
+    if (result === "") {
       result = {};
     } else {
       result = JSON.parse(result);
@@ -250,42 +352,43 @@
       result[type][scheme] = {};
     }
 
-    if (request.hasHeader('Referer')) {
-      result[type][scheme][policy] = request.getHeader('Referer');
+    if (request.hasHeader("Referer")) {
+      result[type][scheme][policy] = request.getHeader("Referer");
     } else {
-      result[type][scheme][policy] = '';
+      result[type][scheme][policy] = "";
     }
 
     setSharedState(sharedKey, JSON.stringify(result));
 
-    if (type === 'link') {
-      var loc = 'https://example.com/tests/dom/base/test/file_bug704320_redirect.html';
-      response.setStatusLine('1.1', 302, 'Found');
-      response.setHeader('Location', loc, false);
+    if (type === "link") {
+      var loc =
+        "https://example.com/tests/dom/base/test/file_bug704320_redirect.html";
+      response.setStatusLine("1.1", 302, "Found");
+      response.setHeader("Location", loc, false);
     }
 
-    if (type === 'window.open') {
-      response.setHeader('Cache-Control', 'no-cache', false);
-      response.setHeader('Content-Type', 'text/html', false);
-      response.write('<html><body><script>'
-                   + 'window.opener.postMessage("window.open", "*");'
-                   + '</script></body></html>');
+    if (type === "window.open") {
+      response.setHeader("Cache-Control", "no-cache", false);
+      response.setHeader("Content-Type", "text/html", false);
+      response.write(
+        "<html><body><script>" +
+          'window.opener.postMessage("window.open", "*");' +
+          "</script></body></html>"
+      );
     }
-  }
-  else if (action === 'get-test-results') {
+  } else if (action === "get-test-results") {
     // ?action=get-result
-    response.setHeader('Cache-Control', 'no-cache', false);
-    response.setHeader('Content-Type', 'text/plain', false);
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setHeader("Content-Type", "text/plain", false);
     response.write(getSharedState(sharedKey));
-  }
-  else if (action === 'generate-policy-test') {
+  } else if (action === "generate-policy-test") {
     // ?action=generate-policy-test&policy=b64-encoded-string
-    response.setHeader('Cache-Control', 'no-cache', false);
-    response.setHeader('Content-Type', 'text/html', false);
-    var policy = unescape(params[1].split('=')[1]);
-    var optionalEarlierPolicy = '';
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setHeader("Content-Type", "text/html", false);
+    var policy = unescape(params[1].split("=")[1]);
+    var optionalEarlierPolicy = "";
     if (params[2]) {
-      optionalEarlierPolicy = params[2].split('=')[1];
+      optionalEarlierPolicy = params[2].split("=")[1];
     }
 
     response.write(createPolicyTest(policy, optionalEarlierPolicy));
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug819051.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug819051.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/bug819051.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/bug819051.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,7 +1,9 @@
-function handleRequest(request, response)
-{
-    response.setStatusLine(request.httpVersion, 200, "Ok");
-    response.setHeader("X-appended-result", request.getHeader("X-appended-to-this"));
-    response.setHeader("X-Accept-Result", request.getHeader("Accept"));
-    response.write("");
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 200, "Ok");
+  response.setHeader(
+    "X-appended-result",
+    request.getHeader("X-appended-to-this")
+  );
+  response.setHeader("X-Accept-Result", request.getHeader("Accept"));
+  response.write("");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/chrome/bug421622-referer.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/chrome/bug421622-referer.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/chrome/bug421622-referer.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/chrome/bug421622-referer.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -2,7 +2,8 @@
   response.setHeader("Content-Type", "text/plain", false);
   response.setHeader("Cache-Control", "no-cache", false);
 
-  var referer = request.hasHeader("Referer") ? request.getHeader("Referer")
-                                             : "";
+  var referer = request.hasHeader("Referer")
+    ? request.getHeader("Referer")
+    : "";
   response.write("Referer: " + referer);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/chrome/bug884693.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/chrome/bug884693.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/chrome/bug884693.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/chrome/bug884693.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   let [status, statusText, encodedBody] = request.queryString.split("&");
   let body = decodeURIComponent(encodedBody);
   response.setStatusLine(request.httpVersion, status, statusText);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/delayedServerEvents.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/delayedServerEvents.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/delayedServerEvents.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/delayedServerEvents.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,10 +1,18 @@
 // this will take strings_to_send.length*500 ms = 5 sec
 
 var timer = null;
-var strings_to_send = ["retry:999999999\ndata\r\n\nda", "ta", ":", "de", "layed1\n\n",
-                       "",
-                       "",
-                       "data:delayed2\n\n", "", ""];
+var strings_to_send = [
+  "retry:999999999\ndata\r\n\nda",
+  "ta",
+  ":",
+  "de",
+  "layed1\n\n",
+  "",
+  "",
+  "data:delayed2\n\n",
+  "",
+  "",
+];
 var resp = null;
 
 function sendNextString() {
@@ -29,7 +37,7 @@
   var bytes = strings_to_send.reduce((len, s) => len + s.length, 0);
 
   response.seizePower();
-  response.write("HTTP/1.1 200 OK\r\n")
+  response.write("HTTP/1.1 200 OK\r\n");
   response.write(`Content-Length: ${bytes}\r\n`);
   response.write("Content-Type: text/event-stream; charset=utf-8\r\n");
   response.write("Cache-Control: no-cache, must-revalidate\r\n");
@@ -37,6 +45,12 @@
 
   resp = response;
 
-  timer = Components.classes["@mozilla.org/timer;1"].createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(sendNextString, 500, Components.interfaces.nsITimer.TYPE_REPEATING_SLACK);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    sendNextString,
+    500,
+    Components.interfaces.nsITimer.TYPE_REPEATING_SLACK
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug1250148.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug1250148.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug1250148.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug1250148.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,7 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function utf8decode(s) {
   return decodeURIComponent(escape(s));
@@ -23,35 +25,46 @@
 
   if (request.method == "POST") {
     var contentTypeParams = {};
-    request.getHeader("Content-Type").split(/\s*\;\s*/).forEach(function(s) {
-      if (s.indexOf('=') >= 0) {
-        let [name, value] = s.split('=');
-        contentTypeParams[name] = value;
-      }
-      else {
-        contentTypeParams[''] = s;
-      }
-    });
-    
-    if (contentTypeParams[''] == "multipart/form-data" &&
-        request.queryString == "") {
-      requestBody.split("--" + contentTypeParams.boundary).slice(1, -1).forEach(function (s) {
-
-        let headers = {};
-        let headerEnd = s.indexOf("\r\n\r\n");
-        s.substr(2, headerEnd-2).split("\r\n").forEach(function(s) {
-          // We're assuming UTF8 for now
-          let [name, value] = s.split(': ');
-          headers[name] = utf8decode(value);
-        });
-
-        let body = s.substring(headerEnd + 4, s.length - 2);
-        if (!headers["Content-Type"] || headers["Content-Type"] == "text/plain") {
-          // We're assuming UTF8 for now
-          body = utf8decode(body);
+    request
+      .getHeader("Content-Type")
+      .split(/\s*\;\s*/)
+      .forEach(function(s) {
+        if (s.indexOf("=") >= 0) {
+          let [name, value] = s.split("=");
+          contentTypeParams[name] = value;
+        } else {
+          contentTypeParams[""] = s;
         }
-        result.push({ headers: headers, body: body});
       });
+
+    if (
+      contentTypeParams[""] == "multipart/form-data" &&
+      request.queryString == ""
+    ) {
+      requestBody
+        .split("--" + contentTypeParams.boundary)
+        .slice(1, -1)
+        .forEach(function(s) {
+          let headers = {};
+          let headerEnd = s.indexOf("\r\n\r\n");
+          s.substr(2, headerEnd - 2)
+            .split("\r\n")
+            .forEach(function(s) {
+              // We're assuming UTF8 for now
+              let [name, value] = s.split(": ");
+              headers[name] = utf8decode(value);
+            });
+
+          let body = s.substring(headerEnd + 4, s.length - 2);
+          if (
+            !headers["Content-Type"] ||
+            headers["Content-Type"] == "text/plain"
+          ) {
+            // We're assuming UTF8 for now
+            body = utf8decode(body);
+          }
+          result.push({ headers, body });
+        });
     }
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug1268962.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug1268962.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug1268962.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug1268962.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,90 +1,92 @@
 // Test server for bug 1268962
-'use strict';
+"use strict";
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 const HTTPStatus = new Map([
-  [100, 'Continue'],
-  [101, 'Switching Protocol'],
-  [200, 'OK'],
-  [201, 'Created'],
-  [202, 'Accepted'],
-  [203, 'Non-Authoritative Information'],
-  [204, 'No Content'],
-  [205, 'Reset Content'],
-  [206, 'Partial Content'],
-  [300, 'Multiple Choice'],
-  [301, 'Moved Permanently'],
-  [302, 'Found'],
-  [303, 'See Other'],
-  [304, 'Not Modified'],
-  [305, 'Use Proxy'],
-  [306, 'unused'],
-  [307, 'Temporary Redirect'],
-  [308, 'Permanent Redirect'],
-  [400, 'Bad Request'],
-  [401, 'Unauthorized'],
-  [402, 'Payment Required'],
-  [403, 'Forbidden'],
-  [404, 'Not Found'],
-  [405, 'Method Not Allowed'],
-  [406, 'Not Acceptable'],
-  [407, 'Proxy Authentication Required'],
-  [408, 'Request Timeout'],
-  [409, 'Conflict'],
-  [410, 'Gone'],
-  [411, 'Length Required'],
-  [412, 'Precondition Failed'],
-  [413, 'Request Entity Too Large'],
-  [414, 'Request-URI Too Long'],
-  [415, 'Unsupported Media Type'],
-  [416, 'Requested Range Not Satisfiable'],
-  [417, 'Expectation Failed'],
-  [500, 'Internal Server Error'],
-  [501, 'Not Implemented'],
-  [502, 'Bad Gateway'],
-  [503, 'Service Unavailable'],
-  [504, 'Gateway Timeout'],
-  [505, 'HTTP Version Not Supported']
+  [100, "Continue"],
+  [101, "Switching Protocol"],
+  [200, "OK"],
+  [201, "Created"],
+  [202, "Accepted"],
+  [203, "Non-Authoritative Information"],
+  [204, "No Content"],
+  [205, "Reset Content"],
+  [206, "Partial Content"],
+  [300, "Multiple Choice"],
+  [301, "Moved Permanently"],
+  [302, "Found"],
+  [303, "See Other"],
+  [304, "Not Modified"],
+  [305, "Use Proxy"],
+  [306, "unused"],
+  [307, "Temporary Redirect"],
+  [308, "Permanent Redirect"],
+  [400, "Bad Request"],
+  [401, "Unauthorized"],
+  [402, "Payment Required"],
+  [403, "Forbidden"],
+  [404, "Not Found"],
+  [405, "Method Not Allowed"],
+  [406, "Not Acceptable"],
+  [407, "Proxy Authentication Required"],
+  [408, "Request Timeout"],
+  [409, "Conflict"],
+  [410, "Gone"],
+  [411, "Length Required"],
+  [412, "Precondition Failed"],
+  [413, "Request Entity Too Large"],
+  [414, "Request-URI Too Long"],
+  [415, "Unsupported Media Type"],
+  [416, "Requested Range Not Satisfiable"],
+  [417, "Expectation Failed"],
+  [500, "Internal Server Error"],
+  [501, "Not Implemented"],
+  [502, "Bad Gateway"],
+  [503, "Service Unavailable"],
+  [504, "Gateway Timeout"],
+  [505, "HTTP Version Not Supported"],
 ]);
 
-const SAME_ORIGIN = 'http://mochi.test:8888/tests/dom/base/test/file_bug1268962.sjs';
-const CROSS_ORIGIN = 'http://example.com/tests/dom/base/test/file_bug1268962.sjs';
+const SAME_ORIGIN =
+  "http://mochi.test:8888/tests/dom/base/test/file_bug1268962.sjs";
+const CROSS_ORIGIN =
+  "http://example.com/tests/dom/base/test/file_bug1268962.sjs";
 
 function handleRequest(request, response) {
   const queryMap = new URLSearchParams(request.queryString);
 
   // Check redirection before everything else.
-  if (queryMap.has('redirect')) {
-    let redirect = queryMap.get('redirect');
+  if (queryMap.has("redirect")) {
+    let redirect = queryMap.get("redirect");
     let location;
-    if (redirect == 'sameorigin') {
+    if (redirect == "sameorigin") {
       location = SAME_ORIGIN;
-    } else if (redirect == 'crossorigin') {
+    } else if (redirect == "crossorigin") {
       location = CROSS_ORIGIN;
     }
 
     if (location) {
       // Use HTTP 302 redirection.
-      response.setStatusLine('1.1', 302, HTTPStatus.get(302));
+      response.setStatusLine("1.1", 302, HTTPStatus.get(302));
 
       // Forward query strings except the redirect option.
-      queryMap.delete('redirect');
-      response.setHeader('Location', location + '?' + queryMap.toString());
+      queryMap.delete("redirect");
+      response.setHeader("Location", location + "?" + queryMap.toString());
 
       return;
     }
   }
 
-  if (queryMap.has('statusCode')) {
-    let statusCode = parseInt(queryMap.get('statusCode'));
+  if (queryMap.has("statusCode")) {
+    let statusCode = parseInt(queryMap.get("statusCode"));
     let statusText = HTTPStatus.get(statusCode);
-    response.setStatusLine('1.1', statusCode, statusText);
+    response.setStatusLine("1.1", statusCode, statusText);
   }
-  if (queryMap.has('cacheControl')) {
-    let cacheControl = queryMap.get('cacheControl');
-    response.setHeader('Cache-Control', cacheControl);
+  if (queryMap.has("cacheControl")) {
+    let cacheControl = queryMap.get("cacheControl");
+    response.setHeader("Cache-Control", cacheControl);
   }
-  if (queryMap.has('allowOrigin')) {
-    let allowOrigin = queryMap.get('allowOrigin');
-    response.setHeader('Access-Control-Allow-Origin', allowOrigin);
+  if (queryMap.has("allowOrigin")) {
+    let allowOrigin = queryMap.get("allowOrigin");
+    response.setHeader("Access-Control-Allow-Origin", allowOrigin);
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug28293.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug28293.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug28293.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug28293.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
   response.write(decodeURIComponent(request.queryString));
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug503473-frame.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug503473-frame.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug503473-frame.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug503473-frame.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -5,19 +5,18 @@
   response.setHeader("Cache-Control", "no-cache", false);
 
   response.write(
-    '<!DOCTYPE html>' +
-    '<div></div>' +
-    '<script>' +
-    'function doWrite() {' +
-    '  document.write("<p></p>");' +
-    '  parent.done();' +
-    '  document.close();' +
-    '}' +
-    'setTimeout(doWrite, 0);' +
-    '</script>' 
+    "<!DOCTYPE html>" +
+      "<div></div>" +
+      "<script>" +
+      "function doWrite() {" +
+      '  document.write("<p></p>");' +
+      "  parent.done();" +
+      "  document.close();" +
+      "}" +
+      "setTimeout(doWrite, 0);" +
+      "</script>"
   );
 
   response.bodyOutputStream.flush();
   // leave the stream open
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug503481.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug503481.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug503481.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug503481.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -5,22 +5,28 @@
 function attemptUnblock(s) {
   try {
     let blockedResponse = null;
-    getObjectState("bug503481_" + s, function(x) {blockedResponse = x.wrappedJSObject.r});
+    getObjectState("bug503481_" + s, function(x) {
+      blockedResponse = x.wrappedJSObject.r;
+    });
     blockedResponse.finish();
     setObjectState("bug503481_" + s, null);
-  } catch(e) {
+  } catch (e) {
     dump("unable to unblock " + s + "retrying in half a second\n");
-    timer = Components.classes["@mozilla.org/timer;1"]
-                      .createInstance(nsITimer);
-    timer.initWithCallback(function () { attemptUnblock(s) }, 500, nsITimer.TYPE_ONE_SHOT);
+    timer = Components.classes["@mozilla.org/timer;1"].createInstance(nsITimer);
+    timer.initWithCallback(
+      function() {
+        attemptUnblock(s);
+      },
+      500,
+      nsITimer.TYPE_ONE_SHOT
+    );
   }
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
@@ -32,7 +38,12 @@
 
   if (query.blockOn) {
     response.processAsync();
-    x = { r: response, QueryInterface: function(iid) { return this } };
+    x = {
+      r: response,
+      QueryInterface(iid) {
+        return this;
+      },
+    };
     x.wrappedJSObject = x;
     setObjectState("bug503481_" + query.blockOn, x);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug622088.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug622088.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug622088.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug622088.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,6 +1,5 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // Echos the referrer back to the requester.
-  response.setHeader('Content-Type', 'text/plain', false);
-  response.write(request.getHeader('Referer'));
+  response.setHeader("Content-Type", "text/plain", false);
+  response.write(request.getHeader("Referer"));
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug675121.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug675121.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug675121.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug675121.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,15 +1,19 @@
 var timer;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/plain", false);
   response.write("Responded");
   response.processAsync();
-  timer = Components.classes["@mozilla.org/timer;1"]
-    .createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function() {
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
       response.finish();
-    // 50ms certainly be enough for one refresh driver firing to happen!
-    }, 50, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+      // 50ms certainly be enough for one refresh driver firing to happen!
+    },
+    50,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug787778.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug787778.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_bug787778.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_bug787778.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,8 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
   response.setHeader("Content-Type", "text/plain", false);
   response.setHeader("X-Frame-Options", "DENY", false);
-  
+
   response.finish();
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_explicit_user_agent.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_explicit_user_agent.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_explicit_user_agent.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_explicit_user_agent.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,8 +1,6 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (request.hasHeader("User-Agent")) {
-    response.setHeader("Result-User-Agent",
-                       request.getHeader("User-Agent"));
+    response.setHeader("Result-User-Agent", request.getHeader("User-Agent"));
   }
   response.write("");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_restrictedEventSource.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_restrictedEventSource.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_restrictedEventSource.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_restrictedEventSource.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,48 +1,69 @@
-function handleRequest(request, response)
-{
-  if ((request.queryString == "test=user1_xhr" &&
-       request.hasHeader("Authorization") &&
-       request.getHeader("Authorization") == "Basic dXNlciAxOnBhc3N3b3JkIDE=") ||
-      (request.queryString == "test=user1_evtsrc" &&
-       request.hasHeader("Authorization") &&
-       request.getHeader("Authorization") == "Basic dXNlciAxOnBhc3N3b3JkIDE=")) {
+function handleRequest(request, response) {
+  if (
+    (request.queryString == "test=user1_xhr" &&
+      request.hasHeader("Authorization") &&
+      request.getHeader("Authorization") == "Basic dXNlciAxOnBhc3N3b3JkIDE=") ||
+    (request.queryString == "test=user1_evtsrc" &&
+      request.hasHeader("Authorization") &&
+      request.getHeader("Authorization") == "Basic dXNlciAxOnBhc3N3b3JkIDE=")
+  ) {
     response.setStatusLine(null, 200, "OK");
     response.setHeader("Content-Type", "text/event-stream", false);
-    response.setHeader("Access-Control-Allow-Origin", "http://mochi.test:8888", false);
+    response.setHeader(
+      "Access-Control-Allow-Origin",
+      "http://mochi.test:8888",
+      false
+    );
     response.setHeader("Access-Control-Allow-Credentials", "true", false);
     response.setHeader("Cache-Control", "no-cache, must-revalidate", false);
     if (request.queryString == "test=user1_xhr") {
       response.setHeader("Set-Cookie", "test=5c", false);
     }
     response.write("event: message\ndata: 1\n\n");
-  } else if ((request.queryString == "test=user2_xhr" &&
-              request.hasHeader("Authorization") &&
-              request.getHeader("Authorization") == "Basic dXNlciAyOnBhc3N3b3JkIDI=") ||
-             (request.queryString == "test=user2_evtsrc" &&
-              request.hasHeader("Authorization") &&
-              request.getHeader("Authorization") == "Basic dXNlciAyOnBhc3N3b3JkIDI=" &&
-              request.hasHeader("Cookie") &&
-              request.getHeader("Cookie") == "test=5d")) {
+  } else if (
+    (request.queryString == "test=user2_xhr" &&
+      request.hasHeader("Authorization") &&
+      request.getHeader("Authorization") == "Basic dXNlciAyOnBhc3N3b3JkIDI=") ||
+    (request.queryString == "test=user2_evtsrc" &&
+      request.hasHeader("Authorization") &&
+      request.getHeader("Authorization") == "Basic dXNlciAyOnBhc3N3b3JkIDI=" &&
+      request.hasHeader("Cookie") &&
+      request.getHeader("Cookie") == "test=5d")
+  ) {
     response.setStatusLine(null, 200, "OK");
     response.setHeader("Content-Type", "text/event-stream", false);
-    response.setHeader("Access-Control-Allow-Origin", "http://mochi.test:8888", false);
+    response.setHeader(
+      "Access-Control-Allow-Origin",
+      "http://mochi.test:8888",
+      false
+    );
     response.setHeader("Access-Control-Allow-Credentials", "true", false);
     response.setHeader("Cache-Control", "no-cache, must-revalidate", false);
     if (request.queryString == "test=user2_xhr") {
       response.setHeader("Set-Cookie", "test=5d", false);
     }
     response.write("event: message\ndata: 1\n\n");
-  } else if (request.queryString == "test=user1_xhr" ||
-             request.queryString == "test=user2_xhr") {
+  } else if (
+    request.queryString == "test=user1_xhr" ||
+    request.queryString == "test=user2_xhr"
+  ) {
     response.setStatusLine(null, 401, "Unauthorized");
-    response.setHeader("WWW-Authenticate", "basic realm=\"restricted\"", false);
-    response.setHeader("Access-Control-Allow-Origin", "http://mochi.test:8888", false);
+    response.setHeader("WWW-Authenticate", 'basic realm="restricted"', false);
+    response.setHeader(
+      "Access-Control-Allow-Origin",
+      "http://mochi.test:8888",
+      false
+    );
     response.setHeader("Access-Control-Allow-Credentials", "true", false);
     response.write("Unauthorized");
   } else {
     response.setStatusLine(null, 403, "Forbidden");
-    response.setHeader("Access-Control-Allow-Origin", "http://mochi.test:8888", false);
+    response.setHeader(
+      "Access-Control-Allow-Origin",
+      "http://mochi.test:8888",
+      false
+    );
     response.setHeader("Access-Control-Allow-Credentials", "true", false);
     response.write("Forbidden");
   }
-}
\ No newline at end of file
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_use_counter_svg_fill_pattern.svg firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_use_counter_svg_fill_pattern.svg
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_use_counter_svg_fill_pattern.svg	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_use_counter_svg_fill_pattern.svg	2021-10-20 19:28:16.000000000 +0000
@@ -8,7 +8,7 @@
 
   <!-- The ellipse is filled using a triangle pattern paint server
        and stroked with black -->
-  <ellipse fill="url(http://example.com/browser/dom/base/test/file_use_counter_svg_fill_pattern_definition.svg#TrianglePattern)" stroke="black" stroke-width="5"  
+  <ellipse fill="url(https://example.com/browser/dom/base/test/file_use_counter_svg_fill_pattern_definition.svg#TrianglePattern)" stroke="black" stroke-width="5"  
            cx="400" cy="200" rx="350" ry="150" />
 
   <!-- Sentinel use counter to signal that telemetry for this document has been captured -->
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_x-frame-options_page.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_x-frame-options_page.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/file_x-frame-options_page.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/file_x-frame-options_page.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,15 +1,18 @@
 // SJS file for X-Frame-Options mochitests
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
   var BOUNDARY = "BOUNDARYOMG3984";
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
-  if (query['multipart'] == "1") {
-    response.setHeader("Content-Type", "multipart/x-mixed-replace;boundary=" + BOUNDARY, false);
+  if (query.multipart == "1") {
+    response.setHeader(
+      "Content-Type",
+      "multipart/x-mixed-replace;boundary=" + BOUNDARY,
+      false
+    );
     response.setHeader("Cache-Control", "no-cache", false);
     response.setStatusLine(request.httpVersion, 200, "OK");
     response.write("--" + BOUNDARY + "\r\n");
@@ -20,45 +23,45 @@
   }
 
   var testHeaders = {
-    "deny": "DENY",
-    "sameorigin": "SAMEORIGIN",
-    "sameorigin2": "SAMEORIGIN, SAMEORIGIN",
-    "sameorigin3": "SAMEORIGIN,SAMEORIGIN , SAMEORIGIN",
-    "mixedpolicy": "DENY,SAMEORIGIN",
+    deny: "DENY",
+    sameorigin: "SAMEORIGIN",
+    sameorigin2: "SAMEORIGIN, SAMEORIGIN",
+    sameorigin3: "SAMEORIGIN,SAMEORIGIN , SAMEORIGIN",
+    mixedpolicy: "DENY,SAMEORIGIN",
 
     /* added for bug 836132 */
-    "afa": "ALLOW-FROM http://mochi.test:8888/",
-    "afd": "ALLOW-FROM http://example.com/",
-    "afa1": "ALLOW-FROM http://mochi.test:8888",
-    "afd1": "ALLOW-FROM:example.com",
-    "afd2": "ALLOW-FROM: example.com",
-    "afd3": "ALLOW-FROM example.com",
-    "afd4": "ALLOW-FROM:http://example.com",
-    "afd5": "ALLOW-FROM: http://example.com",
-    "afd6": "ALLOW-FROM http://example.com",
-    "afd7": "ALLOW-FROM:mochi.test:8888",
-    "afd8": "ALLOW-FROM: mochi.test:8888",
-    "afd9": "ALLOW-FROM:http://mochi.test:8888",
-    "afd10": "ALLOW-FROM: http://mochi.test:8888",
-    "afd11": "ALLOW-FROM mochi.test:8888",
-    "afd12": "ALLOW-FROM",
-    "afd13": "ALLOW-FROM ",
-    "afd14": "ALLOW-FROM:"
+    afa: "ALLOW-FROM http://mochi.test:8888/",
+    afd: "ALLOW-FROM http://example.com/",
+    afa1: "ALLOW-FROM http://mochi.test:8888",
+    afd1: "ALLOW-FROM:example.com",
+    afd2: "ALLOW-FROM: example.com",
+    afd3: "ALLOW-FROM example.com",
+    afd4: "ALLOW-FROM:http://example.com",
+    afd5: "ALLOW-FROM: http://example.com",
+    afd6: "ALLOW-FROM http://example.com",
+    afd7: "ALLOW-FROM:mochi.test:8888",
+    afd8: "ALLOW-FROM: mochi.test:8888",
+    afd9: "ALLOW-FROM:http://mochi.test:8888",
+    afd10: "ALLOW-FROM: http://mochi.test:8888",
+    afd11: "ALLOW-FROM mochi.test:8888",
+    afd12: "ALLOW-FROM",
+    afd13: "ALLOW-FROM ",
+    afd14: "ALLOW-FROM:",
   };
 
-  if (testHeaders.hasOwnProperty(query['xfo'])) {
-    response.setHeader("X-Frame-Options", testHeaders[query['xfo']], false);
+  if (testHeaders.hasOwnProperty(query.xfo)) {
+    response.setHeader("X-Frame-Options", testHeaders[query.xfo], false);
   }
 
   // from the test harness we'll be checking for the presence of this element
   // to test if the page loaded
-  response.write("<h1 id=\"test\">" + query["testid"] + "</h1>");
+  response.write('<h1 id="test">' + query.testid + "</h1>");
 
-  if (query['testid'] == "postmessage") {
+  if (query.testid == "postmessage") {
     response.write("<script>parent.opener.postMessage('ok', '*');</script>");
   }
 
-  if (query['multipart'] == "1") {
+  if (query.multipart == "1") {
     response.write("\r\n--" + BOUNDARY + "\r\n");
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/iframe_meta_refresh.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/iframe_meta_refresh.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/iframe_meta_refresh.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/iframe_meta_refresh.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,11 +1,11 @@
 /*
-* Test server for iframe refresh from meta http-equiv
-*/
+ * Test server for iframe refresh from meta http-equiv
+ */
 
-const SHARED_KEY="iframe_meta_refresh";
-const DEFAULT_STATE = {'count': 0, 'referrers': []};
+const SHARED_KEY = "iframe_meta_refresh";
+const DEFAULT_STATE = { count: 0, referrers: [] };
 const REFRESH_PAGE =
-"http://example.com/tests/dom/base/test/iframe_meta_refresh.sjs?action=test";
+  "http://example.com/tests/dom/base/test/iframe_meta_refresh.sjs?action=test";
 
 function createContent(refresh) {
   let metaRefresh = "";
@@ -35,16 +35,15 @@
          </html>`;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   Components.utils.importGlobalProperties(["URLSearchParams"]);
   let query = new URLSearchParams(request.queryString);
 
   let action = query.get("action");
 
   var referrerLevel = "none";
-  if (request.hasHeader('Referer')) {
-    let referrer = request.getHeader('Referer');
+  if (request.hasHeader("Referer")) {
+    let referrer = request.getHeader("Referer");
     if (referrer.indexOf("test_meta_refresh_referrer") > 0) {
       referrerLevel = "full";
     } else if (referrer == "http://mochi.test:8888/") {
@@ -53,7 +52,7 @@
   }
 
   var state = getSharedState(SHARED_KEY);
-  if (state === '') {
+  if (state === "") {
     state = DEFAULT_STATE;
   } else {
     state = JSON.parse(state);
@@ -64,20 +63,20 @@
   //avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
-  if (action === 'results') {
+  if (action === "results") {
     response.setHeader("Content-Type", "text/plain", false);
     response.write(JSON.stringify(state));
     return;
   }
 
-  if (action === 'reset') {
+  if (action === "reset") {
     //reset server state
     setSharedState(SHARED_KEY, JSON.stringify(DEFAULT_STATE));
     response.write("");
     return;
   }
 
-  if (action === 'test') {
+  if (action === "test") {
     let load = query.get("load");
     state.count++;
     if (state.referrers.indexOf(referrerLevel) < 0) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/referrer_change_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/referrer_change_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/referrer_change_server.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/referrer_change_server.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,139 +1,166 @@
-var BASE_URL = 'example.com/tests/dom/base/test/referrer_change_server.sjs';
+var BASE_URL = "example.com/tests/dom/base/test/referrer_change_server.sjs";
 
 function createTestUrl(aPolicy, aAction, aName) {
-  return 'http://' + BASE_URL + '?' +
-         'action=' + aAction + '&' +
-         'policy=' + aPolicy + '&' +
-         'name=' + aName + '&' +
-         'type=link';
+  return (
+    "http://" +
+    BASE_URL +
+    "?" +
+    "action=" +
+    aAction +
+    "&" +
+    "policy=" +
+    aPolicy +
+    "&" +
+    "name=" +
+    aName +
+    "&" +
+    "type=link"
+  );
 }
 
 function createTest(aMetaPolicy, aReferrerPolicy, aName) {
-  return '<!DOCTYPE HTML>\n\
-         <html>'+
-           '<meta name="referrer" content="' + aMetaPolicy + '">' +
-           '<body>' +
-             '<a href="' + createTestUrl(aReferrerPolicy, 'test', aName + aReferrerPolicy) + '" id="link">' + aReferrerPolicy + '</a>' +
-             '<script>' +
-
-               // LOAD EVENT (of the test)
-               // fires when the page is loaded, then click link
-               // first change meta referrer, then click link
-               'window.addEventListener("load", function() {\n\
-                 document.getElementsByName("referrer")[0].content = "'+aReferrerPolicy+'";\n\
+  return (
+    "<!DOCTYPE HTML>\n\
+         <html>" +
+    '<meta name="referrer" content="' +
+    aMetaPolicy +
+    '">' +
+    "<body>" +
+    '<a href="' +
+    createTestUrl(aReferrerPolicy, "test", aName + aReferrerPolicy) +
+    '" id="link">' +
+    aReferrerPolicy +
+    "</a>" +
+    "<script>" +
+    // LOAD EVENT (of the test)
+    // fires when the page is loaded, then click link
+    // first change meta referrer, then click link
+    'window.addEventListener("load", function() {\n\
+                 document.getElementsByName("referrer")[0].content = "' +
+    aReferrerPolicy +
+    '";\n\
                  document.getElementById("link").click();\n\
                }.bind(window), false);' +
-
-             '</script>\n\
+    "</script>\n\
            </body>\n\
-         </html>';
+         </html>"
+  );
 }
 
 function createTest2(aMetaPolicy, aReferrerPolicy, aName) {
-  return '<!DOCTYPE HTML>\n\
-         <html>'+
-           '<meta name="referrer" content="' + aMetaPolicy + '">' +
-           '<body>' +
-             '<a href="' + createTestUrl(aReferrerPolicy, 'test', aName + aReferrerPolicy) + '" id="link">' + aReferrerPolicy + '</a>' +
-             '<script>' +
-
-               // LOAD EVENT (of the test)
-               // fires when the page is loaded, then click link
-               // first change meta referrer, then click link
-               'window.addEventListener("load", function() {\n\
-                 document.getElementsByName("referrer")[0].setAttribute("content", "'+aReferrerPolicy+'");\n\
+  return (
+    "<!DOCTYPE HTML>\n\
+         <html>" +
+    '<meta name="referrer" content="' +
+    aMetaPolicy +
+    '">' +
+    "<body>" +
+    '<a href="' +
+    createTestUrl(aReferrerPolicy, "test", aName + aReferrerPolicy) +
+    '" id="link">' +
+    aReferrerPolicy +
+    "</a>" +
+    "<script>" +
+    // LOAD EVENT (of the test)
+    // fires when the page is loaded, then click link
+    // first change meta referrer, then click link
+    'window.addEventListener("load", function() {\n\
+                 document.getElementsByName("referrer")[0].setAttribute("content", "' +
+    aReferrerPolicy +
+    '");\n\
                  document.getElementById("link").click();\n\
                }.bind(window), false);' +
-
-             '</script>\n\
+    "</script>\n\
            </body>\n\
-         </html>';
+         </html>"
+  );
 }
 
 function handleRequest(request, response) {
-  var sharedKey = 'referrer_change_server.sjs';
-  var params = request.queryString.split('&');
-  var action = params[0].split('=')[1];
+  var sharedKey = "referrer_change_server.sjs";
+  var params = request.queryString.split("&");
+  var action = params[0].split("=")[1];
 
-  if (action === 'resetState') {
+  if (action === "resetState") {
     var state = getSharedState(sharedKey);
     state = {};
     setSharedState(sharedKey, JSON.stringify(state));
     response.write("");
     return;
-  } else if (action === 'test') {
+  } else if (action === "test") {
     // ?action=test&policy=origin&name=name
-    var policy = params[1].split('=')[1];
-    var name = params[2].split('=')[1];
-    var type = params[3].split('=')[1];
+    var policy = params[1].split("=")[1];
+    var name = params[2].split("=")[1];
+    var type = params[3].split("=")[1];
     var result = getSharedState(sharedKey);
 
-    if (result === '') {
+    if (result === "") {
       result = {};
     } else {
       result = JSON.parse(result);
     }
 
-    if (!result["tests"]) {
-      result["tests"] = {};
+    if (!result.tests) {
+      result.tests = {};
     }
 
     var referrerLevel = "none";
-    var test = {}
-    if (request.hasHeader('Referer')) {
-        let referrer = request.getHeader('Referer');
-        if (referrer.indexOf("referrer_change_server") > 0) {
-          referrerLevel = "full";
-        } else if (referrer == "http://mochi.test:8888") {
-          referrerLevel = "origin";
-        }
-      test.referrer = request.getHeader('Referer');
+    var test = {};
+    if (request.hasHeader("Referer")) {
+      let referrer = request.getHeader("Referer");
+      if (referrer.indexOf("referrer_change_server") > 0) {
+        referrerLevel = "full";
+      } else if (referrer == "http://mochi.test:8888") {
+        referrerLevel = "origin";
+      }
+      test.referrer = request.getHeader("Referer");
     } else {
-      test.referrer = '';
+      test.referrer = "";
     }
     test.policy = referrerLevel;
     test.expected = policy;
 
-    result["tests"][name] = test;
+    result.tests[name] = test;
 
     setSharedState(sharedKey, JSON.stringify(result));
 
     // forward link click to redirect URL to finish test
-    if (type === 'link') {
-      var loc = 'https://example.com/tests/dom/base/test/file_change_policy_redirect.html';
-      response.setStatusLine('1.1', 302, 'Found');
-      response.setHeader('Location', loc, false);
+    if (type === "link") {
+      var loc =
+        "https://example.com/tests/dom/base/test/file_change_policy_redirect.html";
+      response.setStatusLine("1.1", 302, "Found");
+      response.setHeader("Location", loc, false);
     }
 
     return;
-  } else if (action === 'get-test-results') {
+  } else if (action === "get-test-results") {
     // ?action=get-result
-    response.setHeader('Cache-Control', 'no-cache', false);
-    response.setHeader('Content-Type', 'text/plain', false);
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setHeader("Content-Type", "text/plain", false);
     response.write(getSharedState(sharedKey));
     return;
-  } else if (action === 'generate-policy-test') {
+  } else if (action === "generate-policy-test") {
     // ?action=generate-policy-test&referrerPolicy=b64-encoded-string&name=name&newPolicy=b64-encoded-string
-    response.setHeader('Cache-Control', 'no-cache', false);
-    response.setHeader('Content-Type', 'text/html; charset=utf-8', false);
-    var referrerPolicy = unescape(params[1].split('=')[1]);
-    var name = unescape(params[2].split('=')[1]);
-    var newPolicy = params[3].split('=')[1];
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setHeader("Content-Type", "text/html; charset=utf-8", false);
+    var referrerPolicy = unescape(params[1].split("=")[1]);
+    var name = unescape(params[2].split("=")[1]);
+    var newPolicy = params[3].split("=")[1];
 
     response.write(createTest(referrerPolicy, newPolicy, name));
     return;
-  } else if (action === 'generate-policy-test2') {
+  } else if (action === "generate-policy-test2") {
     // ?action=generate-policy-test2&referrerPolicy=b64-encoded-string&name=name&newPolicy=b64-encoded-string
-    response.setHeader('Cache-Control', 'no-cache', false);
-    response.setHeader('Content-Type', 'text/html; charset=utf-8', false);
-    var referrerPolicy = unescape(params[1].split('=')[1]);
-    var name = unescape(params[2].split('=')[1]);
-    var newPolicy = params[3].split('=')[1];
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setHeader("Content-Type", "text/html; charset=utf-8", false);
+    var referrerPolicy = unescape(params[1].split("=")[1]);
+    var name = unescape(params[2].split("=")[1]);
+    var newPolicy = params[3].split("=")[1];
 
     response.write(createTest2(referrerPolicy, newPolicy, name));
     return;
   } else {
-    response.write("I don't know action "+action);
+    response.write("I don't know action " + action);
     return;
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/referrer_header.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/referrer_header.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/referrer_header.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/referrer_header.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,6 +1,6 @@
-
 function handleRequest(request, response) {
   response.setHeader("Referrer-Policy", "same-origin");
-  response.write('<!DOCTYPE HTML><html><body>Loaded</body><script>parent.postMessage(document.referrer, "*");</script></html>');
+  response.write(
+    '<!DOCTYPE HTML><html><body>Loaded</body><script>parent.postMessage(document.referrer, "*");</script></html>'
+  );
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/referrer_testserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/referrer_testserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/referrer_testserver.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/referrer_testserver.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,14 +1,14 @@
 /*
-* Test server for iframe, anchor, and area referrer attributes.
-* https://bugzilla.mozilla.org/show_bug.cgi?id=1175736
-* Also server for further referrer tests such as redirecting tests
-* bug 1174913, bug 1175736, bug 1184781
-*/
+ * Test server for iframe, anchor, and area referrer attributes.
+ * https://bugzilla.mozilla.org/show_bug.cgi?id=1175736
+ * Also server for further referrer tests such as redirecting tests
+ * bug 1174913, bug 1175736, bug 1184781
+ */
 
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 const SJS = "referrer_testserver.sjs?";
 const SJS_PATH = "/tests/dom/base/test/";
-const BASE_ORIGIN = "example.com"
+const BASE_ORIGIN = "example.com";
 const BASE_URL = BASE_ORIGIN + SJS_PATH + SJS;
 const SHARED_KEY = SJS;
 const SAME_ORIGIN = "mochi.test:8888" + SJS_PATH + SJS;
@@ -16,29 +16,57 @@
 
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
-function createTestUrl(aPolicy, aAction, aName, aType, aSchemeFrom, aSchemeTo,
-                       crossOrigin, referrerPolicyHeader) {
+function createTestUrl(
+  aPolicy,
+  aAction,
+  aName,
+  aType,
+  aSchemeFrom,
+  aSchemeTo,
+  crossOrigin,
+  referrerPolicyHeader
+) {
   var schemeTo = aSchemeTo || "http";
   var schemeFrom = aSchemeFrom || "http";
   var rpHeader = referrerPolicyHeader || "";
   var url = schemeTo + "://";
-  url += (crossOrigin ? CROSS_ORIGIN_URL : BASE_URL);
+  url += crossOrigin ? CROSS_ORIGIN_URL : BASE_URL;
   url +=
-         "ACTION=" + aAction + "&" +
-         "policy=" + aPolicy + "&" +
-         "NAME=" + aName + "&" +
-         "type=" + aType + "&" +
-         "RP_HEADER=" + rpHeader + "&" +
-         "SCHEME_FROM=" + schemeFrom;
+    "ACTION=" +
+    aAction +
+    "&" +
+    "policy=" +
+    aPolicy +
+    "&" +
+    "NAME=" +
+    aName +
+    "&" +
+    "type=" +
+    aType +
+    "&" +
+    "RP_HEADER=" +
+    rpHeader +
+    "&" +
+    "SCHEME_FROM=" +
+    schemeFrom;
   return url;
-  }
+}
 
 // test page using iframe referrer attribute
 // if aParams are set this creates a test where the iframe url is a redirect
-function createIframeTestPageUsingRefferer(aMetaPolicy, aAttributePolicy, aNewAttributePolicy, aName, aParams,
-                                           aSchemeFrom, aSchemeTo, aChangingMethod) {
+function createIframeTestPageUsingRefferer(
+  aMetaPolicy,
+  aAttributePolicy,
+  aNewAttributePolicy,
+  aName,
+  aParams,
+  aSchemeFrom,
+  aSchemeTo,
+  aChangingMethod
+) {
   var metaString = "";
   if (aMetaPolicy) {
     metaString = `<meta name="referrer" content="${aMetaPolicy}">`;
@@ -49,14 +77,23 @@
   } else if (aChangingMethod === "property") {
     changeString = `document.getElementById("myframe").referrerPolicy = "${aNewAttributePolicy}"`;
   }
-  var iFrameString = `<iframe src="" id="myframe" ${aAttributePolicy ? ` referrerpolicy="${aAttributePolicy}"` : ""}>iframe</iframe>`;
+  var iFrameString = `<iframe src="" id="myframe" ${
+    aAttributePolicy ? ` referrerpolicy="${aAttributePolicy}"` : ""
+  }>iframe</iframe>`;
   var iframeUrl = "";
   if (aParams) {
     aParams.delete("ACTION");
     aParams.append("ACTION", "redirectIframe");
     iframeUrl = "http://" + CROSS_ORIGIN_URL + aParams.toString();
   } else {
-    iframeUrl = createTestUrl(aAttributePolicy, "test", aName, "iframe", aSchemeFrom, aSchemeTo);
+    iframeUrl = createTestUrl(
+      aAttributePolicy,
+      "test",
+      aName,
+      "iframe",
+      aSchemeFrom,
+      aSchemeTo
+    );
   }
 
   return `<!DOCTYPE HTML>
@@ -79,20 +116,62 @@
            </html>`;
 }
 
-function buildAnchorString(aMetaPolicy, aReferrerPolicy, aName, aRelString, aSchemeFrom, aSchemeTo){
+function buildAnchorString(
+  aMetaPolicy,
+  aReferrerPolicy,
+  aName,
+  aRelString,
+  aSchemeFrom,
+  aSchemeTo
+) {
   if (aReferrerPolicy) {
-    return `<a href="${createTestUrl(aReferrerPolicy, 'test', aName, 'link', aSchemeFrom, aSchemeTo)}" referrerpolicy="${aReferrerPolicy}" id="link" ${aRelString}>${aReferrerPolicy}</a>`;
-  }
-  return `<a href="${createTestUrl(aMetaPolicy, 'test', aName, 'link', aSchemeFrom, aSchemeTo)}" id="link" ${aRelString}>link</a>`;
+    return `<a href="${createTestUrl(
+      aReferrerPolicy,
+      "test",
+      aName,
+      "link",
+      aSchemeFrom,
+      aSchemeTo
+    )}" referrerpolicy="${aReferrerPolicy}" id="link" ${aRelString}>${aReferrerPolicy}</a>`;
+  }
+  return `<a href="${createTestUrl(
+    aMetaPolicy,
+    "test",
+    aName,
+    "link",
+    aSchemeFrom,
+    aSchemeTo
+  )}" id="link" ${aRelString}>link</a>`;
 }
 
-function buildAreaString(aMetaPolicy, aReferrerPolicy, aName, aRelString, aSchemeFrom, aSchemeTo){
+function buildAreaString(
+  aMetaPolicy,
+  aReferrerPolicy,
+  aName,
+  aRelString,
+  aSchemeFrom,
+  aSchemeTo
+) {
   var result = `<img src="file_mozfiledataurl_img.jpg" alt="image" usemap="#imageMap">`;
   result += `<map name="imageMap">`;
   if (aReferrerPolicy) {
-    result += `<area shape="circle" coords="1,1,1" href="${createTestUrl(aReferrerPolicy, 'test', aName, 'link', aSchemeFrom, aSchemeTo)}" alt="theArea" referrerpolicy="${aReferrerPolicy}" id="link" ${aRelString}>`;
+    result += `<area shape="circle" coords="1,1,1" href="${createTestUrl(
+      aReferrerPolicy,
+      "test",
+      aName,
+      "link",
+      aSchemeFrom,
+      aSchemeTo
+    )}" alt="theArea" referrerpolicy="${aReferrerPolicy}" id="link" ${aRelString}>`;
   } else {
-    result += `<area shape="circle" coords="1,1,1" href="${createTestUrl(aMetaPolicy, 'test', aName, 'link', aSchemeFrom, aSchemeTo)}" alt="theArea" id="link" ${aRelString}>`;
+    result += `<area shape="circle" coords="1,1,1" href="${createTestUrl(
+      aMetaPolicy,
+      "test",
+      aName,
+      "link",
+      aSchemeFrom,
+      aSchemeTo
+    )}" alt="theArea" id="link" ${aRelString}>`;
   }
   result += `</map>`;
 
@@ -100,7 +179,17 @@
 }
 
 // test page using anchor or area referrer attribute
-function createAETestPageUsingRefferer(aMetaPolicy, aAttributePolicy, aNewAttributePolicy, aName, aRel, aStringBuilder, aSchemeFrom, aSchemeTo, aChangingMethod) {
+function createAETestPageUsingRefferer(
+  aMetaPolicy,
+  aAttributePolicy,
+  aNewAttributePolicy,
+  aName,
+  aRel,
+  aStringBuilder,
+  aSchemeFrom,
+  aSchemeTo,
+  aChangingMethod
+) {
   var metaString = "";
   if (aMetaPolicy) {
     metaString = `<head><meta name="referrer" content="${aMetaPolicy}"></head>`;
@@ -115,7 +204,14 @@
   if (aRel) {
     relString = `rel="noreferrer"`;
   }
-  var elementString = aStringBuilder(aMetaPolicy, aAttributePolicy, aName, relString, aSchemeFrom, aSchemeTo);
+  var elementString = aStringBuilder(
+    aMetaPolicy,
+    aAttributePolicy,
+    aName,
+    relString,
+    aSchemeFrom,
+    aSchemeTo
+  );
 
   return `<!DOCTYPE HTML>
            <html>
@@ -133,13 +229,26 @@
 }
 
 // test page using anchor target=_blank rel=noopener
-function createTargetBlankRefferer(aMetaPolicy, aName, aSchemeFrom,
-                                   aSchemeTo, aRpHeader) {
+function createTargetBlankRefferer(
+  aMetaPolicy,
+  aName,
+  aSchemeFrom,
+  aSchemeTo,
+  aRpHeader
+) {
   var metaString = "";
   if (aMetaPolicy) {
     metaString = `<head><meta name="referrer" content="${aMetaPolicy}"></head>`;
   }
-  var elementString = `<a href="${createTestUrl(aMetaPolicy, 'test', aName, 'link', aSchemeFrom, aSchemeTo, aRpHeader)}" target=_blank rel="noopener" id="link">link</a>`;
+  var elementString = `<a href="${createTestUrl(
+    aMetaPolicy,
+    "test",
+    aName,
+    "link",
+    aSchemeFrom,
+    aSchemeTo,
+    aRpHeader
+  )}" target=_blank rel="noopener" id="link">link</a>`;
 
   return `<!DOCTYPE HTML>
            <html>
@@ -161,7 +270,9 @@
 function createRedirectImgTestCase(aParams, aAttributePolicy) {
   var metaString = "";
   if (aParams.has("META_POLICY")) {
-    metaString = `<meta name="referrer" content="${aParams.get('META_POLICY')}">`;
+    metaString = `<meta name="referrer" content="${aParams.get(
+      "META_POLICY"
+    )}">`;
   }
   aParams.delete("ACTION");
   aParams.append("ACTION", "redirectImg");
@@ -175,7 +286,9 @@
           <title>Test referrer policies on redirect (img)</title>
           </head>
           <body>
-          <img id="testImg" src="${imgUrl}" ${aAttributePolicy ? ` referrerpolicy="${aAttributePolicy}"` : ""}>
+          <img id="testImg" src="${imgUrl}" ${
+    aAttributePolicy ? ` referrerpolicy="${aAttributePolicy}"` : ""
+  }>
           <script>
             window.addEventListener("load", function() {
               parent.postMessage("childLoadComplete", "http://mochi.test:8888");
@@ -186,7 +299,17 @@
 }
 
 // test page using link referrer attribute
-function createLinkPageUsingRefferer(aMetaPolicy, aAttributePolicy, aNewAttributePolicy, aName, aRel, aStringBuilder, aSchemeFrom, aSchemeTo, aTestType) {
+function createLinkPageUsingRefferer(
+  aMetaPolicy,
+  aAttributePolicy,
+  aNewAttributePolicy,
+  aName,
+  aRel,
+  aStringBuilder,
+  aSchemeFrom,
+  aSchemeTo,
+  aTestType
+) {
   var metaString = "";
   if (aMetaPolicy) {
     metaString = `<meta name="referrer" content="${aMetaPolicy}">`;
@@ -194,16 +317,37 @@
 
   var changeString = "";
   var policy = aAttributePolicy ? aAttributePolicy : aMetaPolicy;
-  var elementString = aStringBuilder(policy, aName, aRel, aSchemeFrom, aSchemeTo, aTestType);
+  var elementString = aStringBuilder(
+    policy,
+    aName,
+    aRel,
+    aSchemeFrom,
+    aSchemeTo,
+    aTestType
+  );
 
   if (aTestType === "setAttribute") {
     changeString = `var link = document.getElementById("test_link");
                     link.setAttribute("referrerpolicy", "${aNewAttributePolicy}");
-                    link.href = "${createTestUrl(policy, "test", aName, "link_element_" + aRel, aSchemeFrom, aSchemeTo)}";`;
+                    link.href = "${createTestUrl(
+                      policy,
+                      "test",
+                      aName,
+                      "link_element_" + aRel,
+                      aSchemeFrom,
+                      aSchemeTo
+                    )}";`;
   } else if (aTestType === "property") {
     changeString = `var link = document.getElementById("test_link");
                     link.referrerPolicy = "${aNewAttributePolicy}";
-                    link.href = "${createTestUrl(policy, "test", aName, "link_element_" + aRel, aSchemeFrom, aSchemeTo)}";`;
+                    link.href = "${createTestUrl(
+                      policy,
+                      "test",
+                      aName,
+                      "link_element_" + aRel,
+                      aSchemeFrom,
+                      aSchemeTo
+                    )}";`;
   }
 
   return `<!DOCTYPE HTML>
@@ -220,8 +364,21 @@
            </html>`;
 }
 
-function createFetchUserControlRPTestCase(aName, aSchemeFrom, aSchemeTo, crossOrigin) {
-  var srcUrl = createTestUrl("", "test", aName, "fetch", aSchemeFrom, aSchemeTo, crossOrigin);
+function createFetchUserControlRPTestCase(
+  aName,
+  aSchemeFrom,
+  aSchemeTo,
+  crossOrigin
+) {
+  var srcUrl = createTestUrl(
+    "",
+    "test",
+    aName,
+    "fetch",
+    aSchemeFrom,
+    aSchemeTo,
+    crossOrigin
+  );
 
   return `<!DOCTYPE HTML>
           <html>
@@ -239,12 +396,19 @@
           </html>`;
 }
 
-function buildLinkString(aPolicy, aName, aRel, aSchemeFrom, aSchemeTo, aTestType) {
-  var href = '';
-  var onChildComplete = `window.parent.postMessage("childLoadComplete", "http://mochi.test:8888");`
-  var policy = '';
-  var asString = '';
-  var relString = '';
+function buildLinkString(
+  aPolicy,
+  aName,
+  aRel,
+  aSchemeFrom,
+  aSchemeTo,
+  aTestType
+) {
+  var href = "";
+  var onChildComplete = `window.parent.postMessage("childLoadComplete", "http://mochi.test:8888");`;
+  var policy = "";
+  var asString = "";
+  var relString = "";
 
   if (aRel) {
     relString = `rel="${aRel}"`;
@@ -259,7 +423,14 @@
   }
 
   if (!aTestType) {
-    href = `href=${createTestUrl(aPolicy, "test", aName, "link_element_" + aRel, aSchemeFrom, aSchemeTo)}`;
+    href = `href=${createTestUrl(
+      aPolicy,
+      "test",
+      aName,
+      "link_element_" + aRel,
+      aSchemeFrom,
+      aSchemeTo
+    )}`;
   }
 
   return `<link ${relString} ${href} ${policy} ${asString} id="test_link" onload='${onChildComplete}' onerror='${onChildComplete}'>`;
@@ -291,25 +462,35 @@
     return;
   }
   if (action === "redirect") {
-    response.write('<script>parent.postMessage("childLoadComplete", "http://mochi.test:8888");</script>');
+    response.write(
+      '<script>parent.postMessage("childLoadComplete", "http://mochi.test:8888");</script>'
+    );
     return;
   }
-  if (action === "redirectImg"){
+  if (action === "redirectImg") {
     params.delete("ACTION");
     params.append("ACTION", "test");
     params.append("type", "img");
     // 302 found, 301 Moved Permanently, 303 See Other, 307 Temporary Redirect
     response.setStatusLine("1.1", 302, "found");
-    response.setHeader("Location",  "http://" + CROSS_ORIGIN_URL + params.toString(), false);
+    response.setHeader(
+      "Location",
+      "http://" + CROSS_ORIGIN_URL + params.toString(),
+      false
+    );
     return;
   }
-  if (action === "redirectIframe"){
+  if (action === "redirectIframe") {
     params.delete("ACTION");
     params.append("ACTION", "test");
     params.append("type", "iframe");
     // 302 found, 301 Moved Permanently, 303 See Other, 307 Temporary Redirect
     response.setStatusLine("1.1", 302, "found");
-    response.setHeader("Location",  "http://" + CROSS_ORIGIN_URL + params.toString(), false);
+    response.setHeader(
+      "Location",
+      "http://" + CROSS_ORIGIN_URL + params.toString(),
+      false
+    );
     return;
   }
   if (action === "test") {
@@ -322,7 +503,7 @@
     result = result ? JSON.parse(result) : {};
 
     var referrerLevel = "none";
-    var test = {}
+    var test = {};
     if (request.hasHeader("Referer")) {
       var referrer = request.getHeader("Referer");
       if (referrer.indexOf("referrer_testserver") > 0) {
@@ -375,8 +556,20 @@
   var name = params.get("NAME");
 
   // anchor & area
-  var _getPage = createAETestPageUsingRefferer.bind(null, metaPolicy, attributePolicy, newAttributePolicy, name, rel);
-  var _getAnchorPage = _getPage.bind(null, buildAnchorString, schemeFrom, schemeTo);
+  var _getPage = createAETestPageUsingRefferer.bind(
+    null,
+    metaPolicy,
+    attributePolicy,
+    newAttributePolicy,
+    name,
+    rel
+  );
+  var _getAnchorPage = _getPage.bind(
+    null,
+    buildAnchorString,
+    schemeFrom,
+    schemeTo
+  );
   var _getAreaPage = _getPage.bind(null, buildAreaString, schemeFrom, schemeTo);
 
   // aMetaPolicy, aAttributePolicy, aNewAttributePolicy, aName, aChangingMethod, aStringBuilder
@@ -405,13 +598,29 @@
     return;
   }
   if (action === "generate-anchor-target-blank-policy-test") {
-    response.write(createTargetBlankRefferer(metaPolicy, name, schemeFrom, schemeTo, referrerPolicyHeader));
+    response.write(
+      createTargetBlankRefferer(
+        metaPolicy,
+        name,
+        schemeFrom,
+        schemeTo,
+        referrerPolicyHeader
+      )
+    );
     return;
   }
 
   // iframe
-  _getPage = createIframeTestPageUsingRefferer.bind(null, metaPolicy, attributePolicy, newAttributePolicy, name, "",
-                                                    schemeFrom, schemeTo);
+  _getPage = createIframeTestPageUsingRefferer.bind(
+    null,
+    metaPolicy,
+    attributePolicy,
+    newAttributePolicy,
+    name,
+    "",
+    schemeFrom,
+    schemeTo
+  );
 
   // aMetaPolicy, aAttributePolicy, aNewAttributePolicy, aName, aChangingMethod
   if (action === "generate-iframe-policy-test") {
@@ -433,12 +642,28 @@
     return;
   }
   if (action === "generate-iframe-redirect-policy-test") {
-    response.write(createIframeTestPageUsingRefferer(metaPolicy, attributePolicy, newAttributePolicy, name, params,
-                                                     schemeFrom, schemeTo));
+    response.write(
+      createIframeTestPageUsingRefferer(
+        metaPolicy,
+        attributePolicy,
+        newAttributePolicy,
+        name,
+        params,
+        schemeFrom,
+        schemeTo
+      )
+    );
     return;
   }
 
-  var _getPage = createLinkPageUsingRefferer.bind(null, metaPolicy, attributePolicy, newAttributePolicy, name, rel);
+  var _getPage = createLinkPageUsingRefferer.bind(
+    null,
+    metaPolicy,
+    attributePolicy,
+    newAttributePolicy,
+    name,
+    rel
+  );
   var _getLinkPage = _getPage.bind(null, buildLinkString, schemeFrom, schemeTo);
 
   // link
@@ -456,7 +681,9 @@
   }
 
   if (action === "generate-fetch-user-control-policy-test") {
-    response.write(createFetchUserControlRPTestCase(name, schemeFrom, schemeTo, crossOrigin));
+    response.write(
+      createFetchUserControlRPTestCase(name, schemeFrom, schemeTo, crossOrigin)
+    );
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/script-1_bug597345.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/script-1_bug597345.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/script-1_bug597345.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/script-1_bug597345.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,16 +1,22 @@
 // timer has to be alive so it can't be eaten by the GC.
 var timer;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/javascript", false);
   // The "stray" open comment at the end of the write is important!
-  response.write("document.write(\"<script charset='utf-8' src='script-2_bug597345.js'></script><!--\")");
+  response.write(
+    "document.write(\"<script charset='utf-8' src='script-2_bug597345.js'></script><!--\")"
+  );
   response.processAsync();
-  timer = Components.classes["@mozilla.org/timer;1"]
-    .createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function() {
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
       response.finish();
-    }, 200, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+    },
+    200,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/script_bug602838.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/script_bug602838.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/script_bug602838.sjs	2021-10-17 14:42:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/script_bug602838.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,5 +1,10 @@
 function setOurState(data) {
-  x = { data: data, QueryInterface: function(iid) { return this } };
+  x = {
+    data,
+    QueryInterface(iid) {
+      return this;
+    },
+  };
   x.wrappedJSObject = x;
   setObjectState("bug602838", x);
 }
@@ -15,11 +20,10 @@
   return data;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (request.queryString) {
     let blockedResponse = getOurState();
-    if (typeof(blockedResponse) == "object") {
+    if (typeof blockedResponse == "object") {
       blockedResponse.finish();
       setOurState(null);
     } else {
@@ -29,7 +33,9 @@
   }
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/javascript", false);
-  response.write("ok(asyncRan, 'Async script should have run first.'); firstRan = true;");
+  response.write(
+    "ok(asyncRan, 'Async script should have run first.'); firstRan = true;"
+  );
   if (getOurState() != "unblocked") {
     response.processAsync();
     setOurState(response);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/send_gzip_content.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/send_gzip_content.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/send_gzip_content.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/send_gzip_content.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,14 +1,15 @@
 function gzipCompressString(string, obs) {
-
-  let scs = Cc["@mozilla.org/streamConverters;1"]
-           .getService(Ci.nsIStreamConverterService);
-  let listener = Cc["@mozilla.org/network/stream-loader;1"]
-                .createInstance(Ci.nsIStreamLoader);
+  let scs = Cc["@mozilla.org/streamConverters;1"].getService(
+    Ci.nsIStreamConverterService
+  );
+  let listener = Cc["@mozilla.org/network/stream-loader;1"].createInstance(
+    Ci.nsIStreamLoader
+  );
   listener.init(obs);
-  let converter = scs.asyncConvertData("uncompressed", "gzip",
-                                        listener, null);
-  let stringStream = Cc["@mozilla.org/io/string-input-stream;1"]
-                    .createInstance(Ci.nsIStringInputStream);
+  let converter = scs.asyncConvertData("uncompressed", "gzip", listener, null);
+  let stringStream = Cc["@mozilla.org/io/string-input-stream;1"].createInstance(
+    Ci.nsIStringInputStream
+  );
   stringStream.data = string;
   converter.onStartRequest(null, null);
   converter.onDataAvailable(null, stringStream, 0, string.length);
@@ -16,16 +17,16 @@
 }
 
 function produceData() {
-  var chars = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%^&*()_+";
-  var result = '';
+  var chars =
+    "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@#$%^&*()_+";
+  var result = "";
   for (var i = 0; i < 100000; ++i) {
     result += chars;
   }
   return result;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
 
   // Generate data
@@ -34,12 +35,12 @@
   response.setHeader("Content-Encoding", "gzip", false);
 
   let observer = {
-    onStreamComplete: function(loader, context, status, length, result) {
+    onStreamComplete(loader, context, status, length, result) {
       buffer = String.fromCharCode.apply(this, result);
-      response.setHeader("Content-Length", ""+buffer.length, false);
+      response.setHeader("Content-Length", "" + buffer.length, false);
       response.write(buffer);
       response.finish();
-    }
+    },
   };
   gzipCompressString(strings_to_send, observer);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/slow.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/slow.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/slow.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/slow.sjs	2021-10-20 19:28:17.000000000 +0000
@@ -1,11 +1,15 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
 
-  timer = Components.classes["@mozilla.org/timer;1"].
-          createInstance(Components.interfaces.nsITimer);
-  timer.init(function() {
-    response.write("Here the content. But slowly.");
-    response.finish();
-  }, 5000, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.init(
+    function() {
+      response.write("Here the content. But slowly.");
+      response.finish();
+    },
+    5000,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/variable_style_sheet.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/variable_style_sheet.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/test/variable_style_sheet.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/test/variable_style_sheet.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/css", false);
 
@@ -13,7 +12,7 @@
     accessCount = parseInt(state) + 1;
   }
 
-  response.write("#content { background-color: rgb(" +
-                 (accessCount % 256) +
-                 ", 0, 0); }");
+  response.write(
+    "#content { background-color: rgb(" + (accessCount % 256) + ", 0, 0); }"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/base/TimeoutManager.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/base/TimeoutManager.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/base/TimeoutManager.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/base/TimeoutManager.cpp	2021-10-20 19:28:16.000000000 +0000
@@ -138,7 +138,7 @@
     }
     timeout->remove();
     mTimeouts.InsertFront(timeout);
-    if (profiler_can_accept_markers()) {
+    if (profiler_thread_is_being_profiled()) {
       if (num == 0) {
         now = TimeStamp::Now();
       }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/bindings/UnionMember.h firefox-trunk-95.0~a1~hg20211020r596404/dom/bindings/UnionMember.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/bindings/UnionMember.h	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/bindings/UnionMember.h	2021-10-20 19:28:16.000000000 +0000
@@ -10,6 +10,7 @@
 #define mozilla_dom_UnionMember_h
 
 #include "mozilla/Alignment.h"
+#include "mozilla/Attributes.h"
 
 namespace mozilla {
 namespace dom {
@@ -45,7 +46,7 @@
   T& Value() { return *mStorage.addr(); }
   const T& Value() const { return *mStorage.addr(); }
   void Destroy() { mStorage.addr()->~T(); }
-};
+} MOZ_INHERIT_TYPE_ANNOTATIONS_FROM_TEMPLATE_ARGS;
 
 }  // namespace dom
 }  // namespace mozilla
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/canvas/CanvasRenderingContext2D.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/canvas/CanvasRenderingContext2D.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/canvas/CanvasRenderingContext2D.cpp	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/canvas/CanvasRenderingContext2D.cpp	2021-10-20 19:28:17.000000000 +0000
@@ -124,6 +124,7 @@
 #include "mozilla/layers/CanvasClient.h"
 #include "mozilla/layers/WebRenderUserData.h"
 #include "mozilla/layers/WebRenderCanvasRenderer.h"
+#include "WindowRenderer.h"
 
 #undef free  // apparently defined by some windows header, clashing with a
              // free() method in SkTypes.h
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/canvas/test/crossorigin/video.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/canvas/test/crossorigin/video.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/canvas/test/crossorigin/video.sjs	2021-10-17 14:42:34.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/canvas/test/crossorigin/video.sjs	2021-10-20 19:28:16.000000000 +0000
@@ -1,13 +1,16 @@
 function parseQuery(request, key) {
-  var params = request.queryString.split('&');
+  var params = request.queryString.split("&");
   for (var j = 0; j < params.length; ++j) {
     var p = params[j];
-	if (p == key)
-	  return true;
-    if (p.indexOf(key + "=") == 0)
-	  return p.substring(key.length + 1);
-	if (p.indexOf("=") < 0 && key == "")
-	  return p;
+    if (p == key) {
+      return true;
+    }
+    if (p.indexOf(key + "=") == 0) {
+      return p.substring(key.length + 1);
+    }
+    if (p.indexOf("=") < 0 && key == "") {
+      return p;
+    }
   }
   return false;
 }
@@ -16,26 +19,32 @@
   var name = parseQuery(request, "name");
   var type = parseQuery(request, "type");
   var cors = parseQuery(request, "cors");
-  var file = Components.classes["@mozilla.org/file/directory_service;1"].
-                        getService(Components.interfaces.nsIProperties).
-                        get("CurWorkD", Components.interfaces.nsIFile);
-  var fis = Components.classes['@mozilla.org/network/file-input-stream;1'].
-                        createInstance(Components.interfaces.nsIFileInputStream);
-  var bis = Components.classes["@mozilla.org/binaryinputstream;1"].
-                        createInstance(Components.interfaces.nsIBinaryInputStream);
+  var file = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
+  var fis = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
+  var bis = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   var split = name.split("/");
-  for(var i = 0; i < split.length; ++i) {
+  for (var i = 0; i < split.length; ++i) {
     file.append(split[i]);
   }
   fis.init(file, -1, -1, false);
   bis.setInputStream(fis);
   var bytes = bis.readBytes(bis.available());
-  response.setHeader("Content-Length", ""+bytes.length, false);
+  response.setHeader("Content-Length", "" + bytes.length, false);
   response.setHeader("Content-Type", type, false);
   if (cors == "anonymous") {
     response.setHeader("Access-Control-Allow-Origin", "*", false);
   } else if (cors == "use-credentials") {
-    response.setHeader("Access-Control-Allow-Origin", "http://mochi.test:8888", false);
+    response.setHeader(
+      "Access-Control-Allow-Origin",
+      "http://mochi.test:8888",
+      false
+    );
     response.setHeader("Access-Control-Allow-Credentials", "true", false);
   }
   response.write(bytes, bytes.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/chrome-webidl/PlacesEvent.webidl firefox-trunk-95.0~a1~hg20211020r596404/dom/chrome-webidl/PlacesEvent.webidl
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/chrome-webidl/PlacesEvent.webidl	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/chrome-webidl/PlacesEvent.webidl	2021-10-20 19:28:17.000000000 +0000
@@ -25,6 +25,10 @@
    */
   "bookmark-guid-changed",
   /**
+   * data: PlacesBookmarkTags. Fired whenever tags of bookmark changes.
+   */
+  "bookmark-tags-changed",
+  /**
    * data: PlacesBookmarkTime.
    * Fired whenever dateAdded or lastModified of a bookmark is explicitly changed
    * through the Bookmarks API. This notification doesn't fire when a bookmark is
@@ -302,6 +306,29 @@
   constructor(PlacesBookmarkGuidInit initDict);
 };
 
+dictionary PlacesBookmarkTagsInit {
+  required long long id;
+  required unsigned short itemType;
+  DOMString? url = null;
+  required ByteString guid;
+  required ByteString parentGuid;
+  required sequence<DOMString> tags;
+  required long long lastModified;
+  required unsigned short source;
+  required boolean isTagging;
+};
+
+[ChromeOnly, Exposed=Window]
+interface PlacesBookmarkTags : PlacesBookmarkChanged {
+  constructor(PlacesBookmarkTagsInit initDict);
+
+  /**
+   * Tags the bookmark has currently.
+   */
+  [Constant,Cached]
+  readonly attribute sequence<DOMString> tags;
+};
+
 dictionary PlacesBookmarkTimeInit {
   required long long id;
   required unsigned short itemType;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/chrome-webidl/WindowGlobalActors.webidl firefox-trunk-95.0~a1~hg20211020r596404/dom/chrome-webidl/WindowGlobalActors.webidl
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/chrome-webidl/WindowGlobalActors.webidl	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/chrome-webidl/WindowGlobalActors.webidl	2021-10-20 19:28:18.000000000 +0000
@@ -121,7 +121,7 @@
    */
   [Throws]
   JSWindowActorParent getActor(UTF8String name);
-  JSWindowActorParent getExistingActor(UTF8String name);
+  JSWindowActorParent? getExistingActor(UTF8String name);
 
   /**
    * Renders a region of the frame into an image bitmap.
@@ -191,5 +191,5 @@
    */
   [Throws]
   JSWindowActorChild getActor(UTF8String name);
-  JSWindowActorChild getExistingActor(UTF8String name);
+  JSWindowActorChild? getExistingActor(UTF8String name);
 };
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/events/EventListenerManager.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/events/EventListenerManager.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/events/EventListenerManager.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/events/EventListenerManager.cpp	2021-10-20 19:28:17.000000000 +0000
@@ -1051,7 +1051,7 @@
   // Use line 0 to make the function body starts from line 1.
   options.setIntroductionType("eventHandler")
       .setFileAndLine(url.get(), 0)
-      .setdeferDebugMetadata(true);
+      .setDeferDebugMetadata(true);
 
   JS::Rooted<JSObject*> handler(cx);
   result = nsJSUtils::CompileFunction(jsapi, scopeChain, options,
@@ -1674,8 +1674,18 @@
   uint32_t count = mListeners.Length();
   for (uint32_t i = 0; i < count; ++i) {
     Listener* listener = &mListeners.ElementAt(i);
-    if (listener->mEventMessage == eUnload ||
-        listener->mEventMessage == eBeforeUnload) {
+    if (listener->mEventMessage == eUnload) {
+      return true;
+    }
+  }
+  return false;
+}
+
+bool EventListenerManager::HasBeforeUnloadListeners() {
+  uint32_t count = mListeners.Length();
+  for (uint32_t i = 0; i < count; ++i) {
+    Listener* listener = &mListeners.ElementAt(i);
+    if (listener->mEventMessage == eBeforeUnload) {
       return true;
     }
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/events/EventListenerManager.h firefox-trunk-95.0~a1~hg20211020r596404/dom/events/EventListenerManager.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/events/EventListenerManager.h	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/events/EventListenerManager.h	2021-10-20 19:28:18.000000000 +0000
@@ -407,12 +407,17 @@
   bool HasMutationListeners();
 
   /**
-   * Allows us to quickly determine whether we have unload or beforeunload
-   * listeners registered.
+   * Allows us to quickly determine whether we have unload listeners registered.
    */
   bool HasUnloadListeners();
 
   /**
+   * Allows us to quickly determine whether we have beforeunload listeners
+   * registered.
+   */
+  bool HasBeforeUnloadListeners();
+
+  /**
    * Returns the mutation bits depending on which mutation listeners are
    * registered to this listener manager.
    * @note If a listener is an nsIDOMMutationListener, all possible mutation
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/fetch/tests/browser_blobFromFile.js firefox-trunk-95.0~a1~hg20211020r596404/dom/fetch/tests/browser_blobFromFile.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/fetch/tests/browser_blobFromFile.js	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/fetch/tests/browser_blobFromFile.js	2021-10-20 19:28:17.000000000 +0000
@@ -21,7 +21,7 @@
   outStream.init(
     file,
     0x02 | 0x08 | 0x20, // write, create, truncate
-    0666,
+    0o666,
     0
   );
   outStream.write(fileData, fileData.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/fetch/tests/crashtests/1664514.html firefox-trunk-95.0~a1~hg20211020r596404/dom/fetch/tests/crashtests/1664514.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/fetch/tests/crashtests/1664514.html	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/fetch/tests/crashtests/1664514.html	2021-10-20 19:28:18.000000000 +0000
@@ -1,6 +1,5 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
-<h3>Set <code>privacy.file_unique_origin</code> to false when testing this.</h3>
 <script>
   fetch("./url.url")
 </script>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/fetch/tests/crashtests/crashtests.list firefox-trunk-95.0~a1~hg20211020r596404/dom/fetch/tests/crashtests/crashtests.list
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/fetch/tests/crashtests/crashtests.list	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/fetch/tests/crashtests/crashtests.list	2021-10-20 19:28:18.000000000 +0000
@@ -1,2 +1,2 @@
 load 1577196.html
-pref(privacy.file_unique_origin,false) load 1664514.html
+load 1664514.html
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/file/ipc/tests/ok.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/file/ipc/tests/ok.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/file/ipc/tests/ok.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/file/ipc/tests/ok.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,10 +1,11 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/html", false);
   response.write(request.getHeader("Content-Length"));
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/file/ipc/tests/script_file.js firefox-trunk-95.0~a1~hg20211020r596404/dom/file/ipc/tests/script_file.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/file/ipc/tests/script_file.js	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/file/ipc/tests/script_file.js	2021-10-20 19:28:17.000000000 +0000
@@ -14,7 +14,7 @@
   outStream.init(
     testFile,
     0x02 | 0x08 | 0x20, // write, create, truncate
-    0666,
+    0o666,
     0
   );
 
@@ -41,7 +41,7 @@
   outStream.init(
     testFile,
     0x02 | 0x08 | 0x20, // write, create, truncate
-    0666,
+    0o666,
     0
   );
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/file/ipc/tests/temporary.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/file/ipc/tests/temporary.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/file/ipc/tests/temporary.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/file/ipc/tests/temporary.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,7 +1,6 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
 
-  var data = new Array(1024*64).join("1234567890ABCDEF");
+  var data = new Array(1024 * 64).join("1234567890ABCDEF");
   response.bodyOutputStream.write(data, data.length);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/file/tests/test_agentcluster_bloburl.js firefox-trunk-95.0~a1~hg20211020r596404/dom/file/tests/test_agentcluster_bloburl.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/file/tests/test_agentcluster_bloburl.js	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/file/tests/test_agentcluster_bloburl.js	2021-10-20 19:28:18.000000000 +0000
@@ -14,6 +14,9 @@
 add_task(async () => {
   do_get_profile();
 
+  // CookieXPCShellUtils.createServer does not support https
+  Services.prefs.setBoolPref("dom.security.https_first", false);
+
   Services.prefs.setBoolPref(
     "privacy.partition.bloburl_per_agent_cluster",
     true
@@ -57,6 +60,9 @@
 add_task(async () => {
   do_get_profile();
 
+  // CookieXPCShellUtils.createServer does not support https
+  Services.prefs.setBoolPref("dom.security.https_first", false);
+
   const server = CookieXPCShellUtils.createServer({ hosts: ["example.org"] });
 
   let result = new Promise(resolve => {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/file/tests/test_createFile.js firefox-trunk-95.0~a1~hg20211020r596404/dom/file/tests/test_createFile.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/file/tests/test_createFile.js	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/file/tests/test_createFile.js	2021-10-20 19:28:18.000000000 +0000
@@ -17,7 +17,7 @@
   outStream.init(
     existingFile,
     0x02 | 0x08 | 0x20, // write, create, truncate
-    0666,
+    0o666,
     0
   );
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/html/HTMLCanvasElement.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/html/HTMLCanvasElement.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/html/HTMLCanvasElement.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/html/HTMLCanvasElement.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -51,6 +51,7 @@
 #include "CanvasUtils.h"
 #include "VRManagerChild.h"
 #include "ClientWebGLContext.h"
+#include "WindowRenderer.h"
 
 using namespace mozilla::layers;
 using namespace mozilla::gfx;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/bug649134/file_bug649134-1.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/bug649134/file_bug649134-1.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/bug649134/file_bug649134-1.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/bug649134/file_bug649134-1.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,11 +1,11 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.seizePower();
-  var r = 'HTTP/1.1 200 OK\r\n' +
-          'Content-Type: text/html\r\n' +
-          'Link: <		\014>; rel="stylesheet"\r\n' +
-          '\r\n' +
-          '<!-- selector {} body {display:none;} --><body>PASS</body>\r\n';
+  var r =
+    "HTTP/1.1 200 OK\r\n" +
+    "Content-Type: text/html\r\n" +
+    'Link: <		\014>; rel="stylesheet"\r\n' +
+    "\r\n" +
+    "<!-- selector {} body {display:none;} --><body>PASS</body>\r\n";
   response.bodyOutputStream.write(r, r.length);
   response.bodyOutputStream.flush();
   response.finish();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/bug649134/file_bug649134-2.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/bug649134/file_bug649134-2.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/bug649134/file_bug649134-2.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/bug649134/file_bug649134-2.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,11 +1,11 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.seizePower();
-  var r = 'HTTP/1.1 200 OK\r\n' +
-          'Content-Type: text/html\r\n' +
-          'Link: <		\014>; rel="stylesheet",\r\n' +
-          '\r\n' +
-          '<!-- selector {} body {display:none;} --><body>PASS</body>\r\n';
+  var r =
+    "HTTP/1.1 200 OK\r\n" +
+    "Content-Type: text/html\r\n" +
+    'Link: <		\014>; rel="stylesheet",\r\n' +
+    "\r\n" +
+    "<!-- selector {} body {display:none;} --><body>PASS</body>\r\n";
   response.bodyOutputStream.write(r, r.length);
   response.bodyOutputStream.flush();
   response.finish();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/forms/save_restore_radio_groups.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/forms/save_restore_radio_groups.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/forms/save_restore_radio_groups.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/forms/save_restore_radio_groups.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,17 +1,17 @@
 var pages = [
   "<!DOCTYPE html>" +
-  "<html><body>" +
-  "<form>" +
-  "<input name='a' type='radio' checked><input name='a' type='radio'><input name='a' type='radio'>" +
-  "</form>" +
-  "</body></html>",
+    "<html><body>" +
+    "<form>" +
+    "<input name='a' type='radio' checked><input name='a' type='radio'><input name='a' type='radio'>" +
+    "</form>" +
+    "</body></html>",
   "<!DOCTYPE html>" +
-  "<html><body>" +
-  "<form>" +
-  "<input name='a' type='radio'><input name='a' type='radio' checked><input name='a' type='radio'>" +
-  "</form>" +
-  "</body></html>",
-  ];
+    "<html><body>" +
+    "<form>" +
+    "<input name='a' type='radio'><input name='a' type='radio' checked><input name='a' type='radio'>" +
+    "</form>" +
+    "</body></html>",
+];
 
 /**
  * This SJS is going to send the same page the two first times it will be called
@@ -21,8 +21,7 @@
  * once.
  */
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var counter = +getState("counter"); // convert to number; +"" === 0
 
   response.setStatusLine(request.httpVersion, 200, "Ok");
@@ -47,4 +46,3 @@
     setState("counter", "" + ++counter);
   }
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/forms/submit_invalid_file.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/forms/submit_invalid_file.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/forms/submit_invalid_file.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/forms/submit_invalid_file.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 200, "Ok");
   response.setHeader("Content-Type", "text/html");
   response.setHeader("Cache-Control", "no-cache");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/forms/test_submit_invalid_file.html firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/forms/test_submit_invalid_file.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/forms/test_submit_invalid_file.html	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/forms/test_submit_invalid_file.html	2021-10-20 19:28:18.000000000 +0000
@@ -37,7 +37,7 @@
 
     var file = FileUtils.getDir("TmpD", [], false);
     file.append("testfile");
-    file.createUnique(SpecialPowers.Ci.nsIFile.NORMAL_FILE_TYPE, 0644);
+    file.createUnique(SpecialPowers.Ci.nsIFile.NORMAL_FILE_TYPE, 0o644);
 
     SpecialPowers.wrap(i).value = file.path;
     file.remove(/* recursive = */ false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/form_submit_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/form_submit_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/form_submit_server.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/form_submit_server.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,7 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function utf8decode(s) {
   return decodeURIComponent(escape(s));
@@ -11,57 +13,70 @@
   return unescape(encodeURIComponent(s));
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
   var result = [];
   var requestBody = "";
-  while ((bodyAvail = bodyStream.available()) > 0)
+  while ((bodyAvail = bodyStream.available()) > 0) {
     requestBody += bodyStream.readBytes(bodyAvail);
+  }
 
   if (request.method == "POST") {
-
     var contentTypeParams = {};
-    request.getHeader("Content-Type").split(/\s*\;\s*/).forEach(function(s) {
-      if (s.indexOf('=') >= 0) {
-        let [name, value] = s.split('=');
-        contentTypeParams[name] = value;
-      }
-      else {
-        contentTypeParams[''] = s;
-      }
-    });
-
-    if (contentTypeParams[''] == "multipart/form-data" &&
-        request.queryString == "") {
-      requestBody.split("--" + contentTypeParams.boundary).slice(1, -1).forEach(function (s) {
-
-        let headers = {};
-        let headerEnd = s.indexOf("\r\n\r\n");
-        s.substr(2, headerEnd-2).split("\r\n").forEach(function(s) {
-          // We're assuming UTF8 for now
-          let [name, value] = s.split(': ');
-          headers[name] = utf8decode(value);
-        });
-
-        let body = s.substring(headerEnd + 4, s.length - 2);
-        if (!headers["Content-Type"] || headers["Content-Type"] == "text/plain") {
-          // We're assuming UTF8 for now
-          body = utf8decode(body);
+    request
+      .getHeader("Content-Type")
+      .split(/\s*\;\s*/)
+      .forEach(function(s) {
+        if (s.indexOf("=") >= 0) {
+          let [name, value] = s.split("=");
+          contentTypeParams[name] = value;
+        } else {
+          contentTypeParams[""] = s;
         }
-        result.push({ headers: headers, body: body});
       });
+
+    if (
+      contentTypeParams[""] == "multipart/form-data" &&
+      request.queryString == ""
+    ) {
+      requestBody
+        .split("--" + contentTypeParams.boundary)
+        .slice(1, -1)
+        .forEach(function(s) {
+          let headers = {};
+          let headerEnd = s.indexOf("\r\n\r\n");
+          s.substr(2, headerEnd - 2)
+            .split("\r\n")
+            .forEach(function(s) {
+              // We're assuming UTF8 for now
+              let [name, value] = s.split(": ");
+              headers[name] = utf8decode(value);
+            });
+
+          let body = s.substring(headerEnd + 4, s.length - 2);
+          if (
+            !headers["Content-Type"] ||
+            headers["Content-Type"] == "text/plain"
+          ) {
+            // We're assuming UTF8 for now
+            body = utf8decode(body);
+          }
+          result.push({ headers, body });
+        });
     }
-    if (contentTypeParams[''] == "text/plain" &&
-        request.queryString == "plain") {
+    if (
+      contentTypeParams[""] == "text/plain" &&
+      request.queryString == "plain"
+    ) {
       result = utf8decode(requestBody);
     }
-    if (contentTypeParams[''] == "application/x-www-form-urlencoded" &&
-        request.queryString == "url") {
+    if (
+      contentTypeParams[""] == "application/x-www-form-urlencoded" &&
+      request.queryString == "url"
+    ) {
       result = requestBody;
     }
-  }
-  else if (request.method == "GET") {
+  } else if (request.method == "GET") {
     result = request.queryString;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/test_bug658746.html firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/test_bug658746.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/html/test/test_bug658746.html	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/html/test/test_bug658746.html	2021-10-20 19:28:18.000000000 +0000
@@ -68,8 +68,8 @@
 SetGetDelete(0xa);
 
 // Octal numbers as properties.
-SetGetDelete(03);
-SetGetDelete(07);
+SetGetDelete(0o3);
+SetGetDelete(0o7);
 
 // String numbers as properties.
 SetGetDelete('0');
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/interfaces/base/nsIBrowser.idl firefox-trunk-95.0~a1~hg20211020r596404/dom/interfaces/base/nsIBrowser.idl
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/interfaces/base/nsIBrowser.idl	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/interfaces/base/nsIBrowser.idl	2021-10-20 19:28:18.000000000 +0000
@@ -130,28 +130,6 @@
                                in AString aContentType);
 
   /**
-   * Determine what process switching behavior this browser element should have.
-   */
-  cenum ProcessBehavior : 8 {
-    // Gecko won't automatically change which process this frame, or it's
-    // subframes, are loaded in.
-    PROCESS_BEHAVIOR_DISABLED,
-
-    // If `useRemoteTabs` is enabled, Gecko will change which process this frame
-    // is loaded in automatically, without calling `performProcessSwitch`.
-    // When `useRemoteSubframes` is enabled, subframes will change processes.
-    PROCESS_BEHAVIOR_STANDARD,
-
-    // Gecko won't automatically change which process this frame is loaded, but
-    // when `useRemoteSubframes` is enabled, subframes will change processes.
-    //
-    // NOTE: This configuration is included only for backwards compatibility,
-    // and will be removed, as it can easily lead to invalid behavior.
-    PROCESS_BEHAVIOR_SUBFRAME_ONLY,
-  };
-  readonly attribute nsIBrowser_ProcessBehavior processSwitchBehavior;
-
-  /**
    * Called to perform any async tasks which must be completed before changing
    * remoteness. Gecko will wait for the returned promise to resolve before
    * performing the process switch.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/BrowserParent.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/BrowserParent.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/BrowserParent.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/BrowserParent.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -672,12 +672,9 @@
   return IPC_OK();
 }
 
-mozilla::ipc::IPCResult BrowserParent::Recv__delete__() {
+void BrowserParent::ActorDestroy(ActorDestroyReason why) {
   Manager()->NotifyTabDestroyed(mTabId, mMarkedDestroying);
-  return IPC_OK();
-}
 
-void BrowserParent::ActorDestroy(ActorDestroyReason why) {
   ContentProcessManager::GetSingleton()->UnregisterRemoteFrame(mTabId);
 
   if (mRemoteLayerTreeOwner.IsInitialized()) {
@@ -749,12 +746,22 @@
     if (why == AbnormalShutdown) {
       frameLoader->MaybeNotifyCrashed(mBrowsingContext, Manager()->ChildID(),
                                       GetIPCChannel());
+    } else if (why == ManagedEndpointDropped) {
+      // If we instead failed due to a constructor error, don't include process
+      // information, as the process did not crash.
+      frameLoader->MaybeNotifyCrashed(mBrowsingContext, ContentParentId{},
+                                      nullptr);
     }
   }
 
   mFrameLoader = nullptr;
 
-  mBrowsingContext->BrowserParentDestroyed(this, why == AbnormalShutdown);
+  // If we were destroyed due to our ManagedEndpoints being dropped, make a
+  // point of showing the subframe crashed UI. We don't fire the full
+  // `MaybeNotifyCrashed` codepath, as the entire process hasn't crashed on us,
+  // and it may confuse the frontend.
+  mBrowsingContext->BrowserParentDestroyed(
+      this, why == AbnormalShutdown || why == ManagedEndpointDropped);
 }
 
 mozilla::ipc::IPCResult BrowserParent::RecvMoveFocus(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/BrowserParent.h firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/BrowserParent.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/BrowserParent.h	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/BrowserParent.h	2021-10-20 19:28:19.000000000 +0000
@@ -724,8 +724,6 @@
       const nsString& aMessage, bool aSync, ipc::StructuredCloneData* aData,
       nsTArray<ipc::StructuredCloneData>* aJSONRetVal = nullptr);
 
-  virtual mozilla::ipc::IPCResult Recv__delete__() override;
-
   virtual void ActorDestroy(ActorDestroyReason why) override;
 
   mozilla::ipc::IPCResult RecvRemoteIsReadyToHandleInputEvents();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/ContentChild.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/ContentChild.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/ContentChild.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/ContentChild.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -1680,12 +1680,14 @@
   // is called.
   CGSShutdownServerConnections();
 
-  // Actual security benefits are only acheived when we additionally deny
-  // future connections, however this currently breaks WebGL so it's not done
-  // by default.
+  // Actual security benefits are only achieved when we additionally deny
+  // future connections using the sandbox policy. WebGL must be remoted if
+  // the windowserver connections are blocked. WebGL remoting is disabled
+  // for some tests.
   if (aIsSandboxEnabled &&
       Preferences::GetBool(
-          "security.sandbox.content.mac.disconnect-windowserver")) {
+          "security.sandbox.content.mac.disconnect-windowserver") &&
+      Preferences::GetBool("webgl.out-of-process")) {
     CGError result = CGSSetDenyWindowServerConnections(true);
     MOZ_DIAGNOSTIC_ASSERT(result == kCGErrorSuccess);
 #  if !MOZ_DIAGNOSTIC_ASSERT_ENABLED
@@ -1783,9 +1785,32 @@
     nsPrintfCString reason("%s initial %s BrowsingContext",
                            browsingContext ? "discarded" : "missing",
                            aIsTopLevel ? "top" : "frame");
+    MOZ_LOG(BrowsingContext::GetLog(), LogLevel::Warning, ("%s", reason.get()));
+    if (!aIsTopLevel) {
+      // Recover if the BrowsingContext is missing for a new subframe. The
+      // `ManagedEndpoint` instances will be automatically destroyed.
+      NS_WARNING(reason.get());
+      return IPC_OK();
+    }
     return IPC_FAIL(this, reason.get());
   }
 
+  if (xpc::IsInAutomation() &&
+      StaticPrefs::
+          browser_tabs_remote_testOnly_failPBrowserCreation_enabled()) {
+    nsAutoCString idString;
+    if (NS_SUCCEEDED(Preferences::GetCString(
+            "browser.tabs.remote.testOnly.failPBrowserCreation.browsingContext",
+            idString))) {
+      nsresult rv = NS_OK;
+      uint64_t bcid = idString.ToInteger64(&rv);
+      if (NS_SUCCEEDED(rv) && bcid == browsingContext->Id()) {
+        NS_WARNING("Injecting artificial PBrowser creation failure");
+        return IPC_OK();
+      }
+    }
+  }
+
   if (!aWindowInit.isInitialDocument() ||
       !NS_IsAboutBlank(aWindowInit.documentURI())) {
     return IPC_FAIL(this,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/ContentParent.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/ContentParent.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/ContentParent.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/ContentParent.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -2409,9 +2409,12 @@
     info.hasAudio = true;
   }
 
-  // Windowserver access
+  // Window server access. If the disconnect-windowserver pref is not
+  // "true" or out-of-process WebGL is not enabled, allow window server
+  // access in the sandbox policy.
   if (!Preferences::GetBool(
-          "security.sandbox.content.mac.disconnect-windowserver")) {
+          "security.sandbox.content.mac.disconnect-windowserver") ||
+      !Preferences::GetBool("webgl.out-of-process")) {
     info.hasWindowServer = true;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/tests/blob_verify.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/tests/blob_verify.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/tests/blob_verify.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/tests/blob_verify.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,16 +1,21 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
-const BinaryOutputStream = CC("@mozilla.org/binaryoutputstream;1",
-                              "nsIBinaryOutputStream",
-                              "setOutputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
+const BinaryOutputStream = CC(
+  "@mozilla.org/binaryoutputstream;1",
+  "nsIBinaryOutputStream",
+  "setOutputStream"
+);
 
 function handleRequest(request, response) {
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
   var bodyBytes = [];
-  while ((bodyAvail = bodyStream.available()) > 0)
+  while ((bodyAvail = bodyStream.available()) > 0) {
     Array.prototype.push.apply(bodyBytes, bodyStream.readByteArray(bodyAvail));
+  }
 
   var bos = new BinaryOutputStream(response.bodyOutputStream);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/tests/browser_crash_oopiframe.js firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/tests/browser_crash_oopiframe.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/tests/browser_crash_oopiframe.js	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/tests/browser_crash_oopiframe.js	2021-10-20 19:28:19.000000000 +0000
@@ -229,10 +229,6 @@
     "This test only makes sense of we can use OOP iframes."
   );
 
-  await SpecialPowers.pushPrefEnv({
-    set: [["dom.security.enforceIPCBasedPrincipalVetting", false]],
-  });
-
   // Create the crash reporting directory if it doesn't yet exist, otherwise, a failure
   // sometimes occurs. See bug 1687855 for fixing this.
   const uAppDataPath = Services.dirsvc.get("UAppData", Ci.nsIFile).path;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/tests/browser.ini firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/tests/browser.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/tests/browser.ini	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/tests/browser.ini	2021-10-20 19:28:19.000000000 +0000
@@ -50,3 +50,5 @@
 skip-if = !fission # Test doesn't make sense without fission
 [browser_web_process_isolation.js]
 skip-if = !fission # Only relevant for fission
+[browser_pbrowser_creation_failure.js]
+skip-if = !fission
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/tests/browser_pbrowser_creation_failure.js firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/tests/browser_pbrowser_creation_failure.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/ipc/tests/browser_pbrowser_creation_failure.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/ipc/tests/browser_pbrowser_creation_failure.js	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,57 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_task(async function test_subframe_pbrowser_creation_failure() {
+  await BrowserTestUtils.withNewTab(
+    "https://example.com/document-builder.sjs?html=<iframe></iframe>",
+    async browser => {
+      let bcid = await SpecialPowers.spawn(browser, [], () => {
+        return content.document.body.querySelector("iframe").browsingContext.id;
+      });
+
+      // We currently have no known way to trigger PBrowser creation failure,
+      // other than to use this custom pref for the purpose.
+      info(`enabling failPBrowserCreation for browsingContext: ${bcid}`);
+      await SpecialPowers.pushPrefEnv({
+        set: [
+          ["browser.tabs.remote.testOnly.failPBrowserCreation.enabled", true],
+          [
+            "browser.tabs.remote.testOnly.failPBrowserCreation.browsingContext",
+            `${bcid}`,
+          ],
+        ],
+      });
+
+      let eventFiredPromise = BrowserTestUtils.waitForEvent(
+        browser,
+        "oop-browser-crashed"
+      );
+
+      info("triggering navigation which will fail pbrowser creation");
+      await SpecialPowers.spawn(browser, [], () => {
+        content.document.body.querySelector("iframe").src =
+          "https://example.org/document-builder.sjs?html=frame";
+      });
+
+      info("Waiting for oop-browser-crashed event.");
+      let event = await eventFiredPromise;
+      ok(!event.isTopFrame, "should be reporting subframe crash");
+      ok(
+        event.childID == 0,
+        "childID should be zero, as no process actually crashed"
+      );
+      is(event.browsingContextId, bcid, "bcid should match");
+
+      let {
+        subject: windowGlobal,
+      } = await BrowserUtils.promiseObserved("window-global-created", wgp =>
+        wgp.documentURI.spec.startsWith("about:framecrashed")
+      );
+      is(windowGlobal.browsingContext.id, bcid, "bcid is correct");
+
+      await SpecialPowers.popPrefEnv();
+    }
+  );
+});
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/IPCUtils.h firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/IPCUtils.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/IPCUtils.h	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/IPCUtils.h	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,28 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef DOM_LOCKS_IPCUTILS_H_
+#define DOM_LOCKS_IPCUTILS_H_
+
+#include "ipc/EnumSerializer.h"
+#include "ipc/IPCMessageUtilsSpecializations.h"
+#include "mozilla/dom/LockManagerBinding.h"
+
+namespace IPC {
+using LockMode = mozilla::dom::LockMode;
+template <>
+struct ParamTraits<LockMode>
+    : public ContiguousEnumSerializerInclusive<LockMode, LockMode::Shared,
+                                               LockMode::Exclusive> {};
+
+DEFINE_IPC_SERIALIZER_WITH_FIELDS(mozilla::dom::LockInfo, mName, mMode,
+                                  mClientId);
+
+DEFINE_IPC_SERIALIZER_WITH_FIELDS(mozilla::dom::LockManagerSnapshot, mHeld,
+                                  mPending);
+}  // namespace IPC
+
+#endif  // DOM_LOCKS_IPCUTILS_H_
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/Lock.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/Lock.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/Lock.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/Lock.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -8,11 +8,12 @@
 #include "mozilla/dom/LockBinding.h"
 #include "mozilla/dom/LockManager.h"
 #include "mozilla/dom/Promise.h"
+#include "mozilla/dom/locks/LockRequestChild.h"
 
 namespace mozilla::dom {
 
-NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Lock, mOwner, mLockManager,
-                                      mWaitingPromise, mReleasedPromise)
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Lock, mOwner, mWaitingPromise,
+                                      mReleasedPromise)
 NS_IMPL_CYCLE_COLLECTING_ADDREF(Lock)
 NS_IMPL_CYCLE_COLLECTING_RELEASE(Lock)
 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Lock)
@@ -20,16 +21,17 @@
   NS_INTERFACE_MAP_ENTRY(nsISupports)
 NS_INTERFACE_MAP_END
 
-Lock::Lock(nsIGlobalObject* aGlobal, const RefPtr<LockManager>& aLockManager,
+Lock::Lock(nsIGlobalObject* aGlobal,
+           const WeakPtr<locks::LockRequestChild>& aLockRequestChild,
            const nsString& aName, LockMode aMode,
            const RefPtr<Promise>& aReleasedPromise, ErrorResult& aRv)
     : mOwner(aGlobal),
-      mLockManager(aLockManager),
+      mLockRequestChild(aLockRequestChild),
       mName(aName),
       mMode(aMode),
       mWaitingPromise(Promise::Create(aGlobal, aRv)),
       mReleasedPromise(aReleasedPromise) {
-  MOZ_ASSERT(aLockManager);
+  MOZ_ASSERT(mLockRequestChild);
   MOZ_ASSERT(aReleasedPromise);
 }
 
@@ -47,16 +49,18 @@
 }
 
 void Lock::ResolvedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) {
-  RefPtr<Lock> pin = this;
-  // decrements the refcount, may delete this
-  mLockManager->ReleaseHeldLock(this);
+  if (mLockRequestChild) {
+    locks::PLockRequestChild::Send__delete__(mLockRequestChild, false);
+    mLockRequestChild = nullptr;
+  }
   mReleasedPromise->MaybeResolve(aValue);
 }
 
 void Lock::RejectedCallback(JSContext* aCx, JS::Handle<JS::Value> aValue) {
-  RefPtr<Lock> pin = this;
-  // decrements the refcount, may delete this
-  mLockManager->ReleaseHeldLock(this);
+  if (mLockRequestChild) {
+    locks::PLockRequestChild::Send__delete__(mLockRequestChild, false);
+    mLockRequestChild = nullptr;
+  }
   mReleasedPromise->MaybeReject(aValue);
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/Lock.h firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/Lock.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/Lock.h	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/Lock.h	2021-10-20 19:28:19.000000000 +0000
@@ -10,6 +10,7 @@
 #include "js/TypeDecls.h"
 #include "mozilla/Attributes.h"
 #include "mozilla/ErrorResult.h"
+#include "mozilla/WeakPtr.h"
 #include "mozilla/dom/BindingDeclarations.h"
 #include "mozilla/dom/LockManagerBinding.h"
 #include "mozilla/dom/PromiseNativeHandler.h"
@@ -19,6 +20,9 @@
 namespace mozilla::dom {
 
 class LockManager;
+namespace locks {
+class LockRequestChild;
+}
 
 class Lock final : public PromiseNativeHandler, public nsWrapperCache {
   friend class LockManager;
@@ -27,18 +31,11 @@
   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(Lock)
 
-  Lock(nsIGlobalObject* aGlobal, const RefPtr<LockManager>& aLockManager,
+  Lock(nsIGlobalObject* aGlobal,
+       const WeakPtr<locks::LockRequestChild>& aLockRequestChild,
        const nsString& aName, LockMode aMode,
        const RefPtr<Promise>& aReleasedPromise, ErrorResult& aRv);
 
-  bool operator==(const Lock& aOther) const {
-    // This operator is needed to remove released locks from the queue.
-    // This assumes each lock has a unique promise
-    MOZ_ASSERT(mReleasedPromise && aOther.mReleasedPromise,
-               "Promises are null when locks are unreleased??");
-    return mReleasedPromise == aOther.mReleasedPromise;
-  }
-
  protected:
   ~Lock() = default;
 
@@ -62,7 +59,7 @@
 
  private:
   nsCOMPtr<nsIGlobalObject> mOwner;
-  RefPtr<LockManager> mLockManager;
+  WeakPtr<locks::LockRequestChild> mLockRequestChild;
 
   nsString mName;
   LockMode mMode;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManagerChild.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManagerChild.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManagerChild.cpp	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManagerChild.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,24 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "LockManagerChild.h"
+#include "LockRequestChild.h"
+
+namespace mozilla::dom::locks {
+
+NS_IMPL_CYCLE_COLLECTION(LockManagerChild, mOwner)
+NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(LockManagerChild, AddRef)
+NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(LockManagerChild, Release)
+
+void LockManagerChild::RequestLock(const LockRequest& aRequest,
+                                   const LockOptions& aOptions) {
+  auto requestActor = MakeRefPtr<LockRequestChild>(aRequest, aOptions.mSignal);
+  SendPLockRequestConstructor(
+      requestActor, IPCLockRequest(nsString(aRequest.mName), aOptions.mMode,
+                                   aOptions.mIfAvailable, aOptions.mSteal));
+}
+
+}  // namespace mozilla::dom::locks
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManagerChild.h firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManagerChild.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManagerChild.h	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManagerChild.h	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef DOM_LOCKS_LOCKMANAGERCHILD_H_
+#define DOM_LOCKS_LOCKMANAGERCHILD_H_
+
+#include "mozilla/dom/locks/PLockManagerChild.h"
+#include "mozilla/dom/Promise.h"
+#include "nsIUUIDGenerator.h"
+
+namespace mozilla::dom::locks {
+
+struct LockRequest;
+
+class LockManagerChild final : public PLockManagerChild {
+ public:
+  NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(LockManagerChild)
+  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(LockManagerChild)
+
+  explicit LockManagerChild(nsIGlobalObject* aOwner) : mOwner(aOwner){};
+
+  nsIGlobalObject* GetParentObject() const { return mOwner; };
+
+  void RequestLock(const LockRequest& aRequest, const LockOptions& aOptions);
+
+ private:
+  ~LockManagerChild() = default;
+
+  nsCOMPtr<nsIGlobalObject> mOwner;
+};
+
+}  // namespace mozilla::dom::locks
+
+#endif  // DOM_LOCKS_LOCKMANAGERCHILD_H_
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManager.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManager.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManager.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManager.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -5,30 +5,21 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "mozilla/dom/LockManager.h"
-#include "mozilla/AlreadyAddRefed.h"
+#include "mozilla/dom/WorkerCommon.h"
+#include "mozilla/dom/locks/LockManagerChild.h"
+#include "mozilla/dom/locks/LockRequestChild.h"
 #include "mozilla/Assertions.h"
-#include "mozilla/Attributes.h"
 #include "mozilla/ErrorResult.h"
 #include "mozilla/dom/LockManagerBinding.h"
 #include "mozilla/dom/Promise.h"
-#include "mozilla/dom/Promise-inl.h"
-#include "mozilla/dom/WorkerPrivate.h"
-#include "nsIRunnable.h"
-#include "nsIDUtils.h"
+#include "mozilla/dom/locks/PLockManager.h"
+#include "mozilla/ipc/BackgroundChild.h"
+#include "mozilla/ipc/BackgroundUtils.h"
+#include "mozilla/ipc/PBackgroundChild.h"
 
 namespace mozilla::dom {
 
-NS_IMPL_CYCLE_COLLECTION_CLASS(LockManager)
-NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(LockManager)
-  tmp->Shutdown();
-  NS_IMPL_CYCLE_COLLECTION_UNLINK(mOwner, mHeldLockSet)
-  NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
-NS_IMPL_CYCLE_COLLECTION_UNLINK_END
-NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(LockManager)
-  NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOwner, mHeldLockSet)
-NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
-NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(LockManager)
-
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(LockManager, mOwner, mActor)
 NS_IMPL_CYCLE_COLLECTING_ADDREF(LockManager)
 NS_IMPL_CYCLE_COLLECTING_RELEASE(LockManager)
 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(LockManager)
@@ -41,14 +32,38 @@
   return LockManager_Binding::Wrap(aCx, this, aGivenProto);
 }
 
-void LockManager::Shutdown() {
-  mQueueMap.Clear();
-  // TODO: release the remaining locks and requests made in this instance when
-  // shared lock manager is implemented
-}
-
-static nsString GetClientId(nsIGlobalObject* aGlobal) {
-  return NSID_TrimBracketsUTF16(aGlobal->GetClientInfo()->Id());
+LockManager::LockManager(nsIGlobalObject* aGlobal) : mOwner(aGlobal) {
+  Maybe<ClientInfo> clientInfo = aGlobal->GetClientInfo();
+  if (!clientInfo) {
+    // TODO: https://github.com/WICG/web-locks/issues/78
+    return;
+  }
+
+  const mozilla::ipc::PrincipalInfo& principalInfo =
+      clientInfo->PrincipalInfo();
+
+  if (principalInfo.type() !=
+      mozilla::ipc::PrincipalInfo::TContentPrincipalInfo) {
+    return;
+  }
+
+  mozilla::ipc::PBackgroundChild* backgroundActor =
+      mozilla::ipc::BackgroundChild::GetOrCreateForCurrentThread();
+  mActor = new locks::LockManagerChild(aGlobal);
+  backgroundActor->SendPLockManagerConstructor(mActor, principalInfo,
+                                               clientInfo->Id());
+
+  if (!NS_IsMainThread()) {
+    mWorkerRef = WeakWorkerRef::Create(GetCurrentThreadWorkerPrivate(),
+                                       [self = RefPtr(this)]() {
+                                         // Others may grab a strong reference
+                                         // and block immediate destruction.
+                                         // Shutdown early as we don't have to
+                                         // wait for them.
+                                         self->Shutdown();
+                                         self->mWorkerRef = nullptr;
+                                       });
+  }
 }
 
 static bool ValidateRequestArguments(const nsAString& name,
@@ -89,33 +104,14 @@
   return true;
 }
 
-// XXX: should be MOZ_CAN_RUN_SCRIPT, but not sure how to call it from closures
-MOZ_CAN_RUN_SCRIPT_BOUNDARY static void RunCallbackAndSettlePromise(
-    LockGrantedCallback& aCallback, mozilla::dom::Lock* lock,
-    Promise& aPromise) {
-  ErrorResult rv;
-  if (RefPtr<Promise> result = aCallback.Call(
-          lock, rv, nullptr, CallbackObject::eRethrowExceptions)) {
-    aPromise.MaybeResolve(result);
-  } else if (rv.Failed() && !rv.IsUncatchableException()) {
-    aPromise.MaybeReject(std::move(rv));
-  } else {
-    aPromise.MaybeResolveWithUndefined();
-  }
-  // This is required even with no failure. IgnoredErrorResult is not an option
-  // since MaybeReject does not accept it.
-  rv.WouldReportJSException();
-  MOZ_ASSERT(!rv.Failed());
-}
-
-already_AddRefed<Promise> LockManager::Request(const nsAString& name,
-                                               LockGrantedCallback& callback,
+already_AddRefed<Promise> LockManager::Request(const nsAString& aName,
+                                               LockGrantedCallback& aCallback,
                                                ErrorResult& aRv) {
-  return Request(name, LockOptions(), callback, aRv);
+  return Request(aName, LockOptions(), aCallback, aRv);
 };
-already_AddRefed<Promise> LockManager::Request(const nsAString& name,
-                                               const LockOptions& options,
-                                               LockGrantedCallback& callback,
+already_AddRefed<Promise> LockManager::Request(const nsAString& aName,
+                                               const LockOptions& aOptions,
+                                               LockGrantedCallback& aCallback,
                                                ErrorResult& aRv) {
   if (mOwner->GetStorageAccess() <= StorageAccess::eDeny) {
     // Step 4: If origin is an opaque origin, then return a promise rejected
@@ -125,151 +121,64 @@
     aRv.ThrowSecurityError("request() is not allowed in this context");
     return nullptr;
   }
-  if (!ValidateRequestArguments(name, options, aRv)) {
+  if (!ValidateRequestArguments(aName, aOptions, aRv)) {
     return nullptr;
   }
 
-  if (options.mSignal.WasPassed()) {
-    aRv.ThrowNotSupportedError("AbortSignal support is not implemented yet");
+  if (!mActor) {
+    // TODO: https://github.com/WICG/web-locks/issues/78
+    aRv.ThrowInvalidStateError(
+        "The document of the lock manager is not fully active or web locks "
+        "aren't enabled for the document.");
     return nullptr;
   }
 
   RefPtr<Promise> promise = Promise::Create(mOwner, aRv);
-  LockRequest request = {nsString(name), options.mMode, promise, &callback};
+  if (aRv.Failed()) {
+    return nullptr;
+  }
 
-  nsCOMPtr<nsIRunnable> runCallback(NS_NewRunnableFunction(
-      "RequestLock",
-      [self = RefPtr<LockManager>(this), request, options]() -> void {
-        nsTArray<mozilla::dom::LockRequest>& queue =
-            self->mQueueMap.LookupOrInsert(request.mName);
-        if (options.mSteal) {
-          self->mHeldLockSet.RemoveIf([&request](Lock* lock) {
-            if (lock->mName == request.mName) {
-              lock->mReleasedPromise->MaybeRejectWithAbortError(
-                  "The lock request is aborted");
-              return true;
-            }
-            return false;
-          });
-          queue.InsertElementAt(0, request);
-        } else if (options.mIfAvailable &&
-                   !self->IsGrantableRequest(request, queue)) {
-          // TODO: this must be asynchronous! "enqueue the following steps"
-          RunCallbackAndSettlePromise(*request.mCallback, nullptr,
-                                      *request.mPromise);
-          return;
-        } else {
-          queue.AppendElement(request);
-        }
-        self->ProcessRequestQueue(queue);
-      }));
-  Unused << NS_DispatchToCurrentThreadQueue(runCallback.forget(),
-                                            EventQueuePriority::Idle);
-  // TODO: AbortSignal support
-  // if (options.mSignal.WasPassed()) {
-  //   options.mSignal.Value()
-  // }
+  mActor->RequestLock({nsString(aName), promise, &aCallback}, aOptions);
   return promise.forget();
 };
 
 already_AddRefed<Promise> LockManager::Query(ErrorResult& aRv) {
-  RefPtr<Promise> promise = Promise::Create(mOwner, aRv);
-
-  // TODO: this should be retrieved via IPC
-
-  LockManagerSnapshot snapshot;
-  snapshot.mHeld.Construct();
-  snapshot.mPending.Construct();
-  for (const auto& queueMapEntry : mQueueMap) {
-    for (const LockRequest& request : queueMapEntry.GetData()) {
-      LockInfo info;
-      info.mMode.Construct(request.mMode);
-      info.mName.Construct(request.mName);
-      info.mClientId.Construct(
-          GetClientId(request.mPromise->GetGlobalObject()));
-      if (!snapshot.mPending.Value().AppendElement(info, mozilla::fallible)) {
-        aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
-        return nullptr;
-      };
-    }
-  }
-  for (const Lock* lock : mHeldLockSet) {
-    LockInfo info;
-    info.mMode.Construct(lock->mMode);
-    info.mName.Construct(lock->mName);
-    info.mClientId.Construct(GetClientId(lock->mOwner));
-    if (!snapshot.mHeld.Value().AppendElement(info, mozilla::fallible)) {
-      aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
-      return nullptr;
-    };
+  if (mOwner->GetStorageAccess() <= StorageAccess::eDeny) {
+    aRv.ThrowSecurityError("query() is not allowed in this context");
+    return nullptr;
   }
-  promise->MaybeResolve(snapshot);
-  return promise.forget();
-};
 
-void LockManager::ReleaseHeldLock(Lock* aLock) {
-  MOZ_ASSERT(mHeldLockSet.Contains(aLock), "Lock not held??");
-  mHeldLockSet.Remove(aLock);
-  if (auto queue = mQueueMap.Lookup(aLock->mName)) {
-    ProcessRequestQueue(queue.Data());
-    if (queue.Data().IsEmpty()) {
-      // Remove if empty, to prevent the queue map from growing forever
-      mQueueMap.Remove(aLock->mName);
-    }
+  if (!mActor) {
+    // TODO: https://github.com/WICG/web-locks/issues/78
+    aRv.ThrowInvalidStateError(
+        "The document of the lock manager is not fully active or web locks "
+        "aren't enabled for the document.");
+    return nullptr;
   }
-  // or else, the queue is removed during the previous lock release
-}
 
-void LockManager::ProcessRequestQueue(
-    nsTArray<mozilla::dom::LockRequest>& aQueue) {
-  // use manual loop since range-loop is not safe for mutable arrays
-  for (uint32_t i = 0; i < aQueue.Length(); i++) {
-    auto& request = aQueue[i];
-    if (IsGrantableRequest(request, aQueue)) {
-      RefPtr<Lock> lock = new Lock(mOwner, this, request.mName, request.mMode,
-                                   request.mPromise, IgnoreErrors() /* ?? */);
-      mHeldLockSet.Insert(lock);
-
-      lock->GetWaitingPromise().AppendNativeHandler(lock);
-
-      RefPtr<LockGrantedCallback> callback = request.mCallback;
-      aQueue.RemoveElement(request);
-      nsCOMPtr<nsIRunnable> runCallback(NS_NewRunnableFunction(
-          "RunCallbackAndSettlePromise", [callback, lock]() -> void {
-            RunCallbackAndSettlePromise(*callback, lock,
-                                        lock->GetWaitingPromise());
-          }));
-      // TODO: This should go to lock task queue
-      Unused << NS_DispatchToCurrentThreadQueue(runCallback.forget(),
-                                                EventQueuePriority::Idle);
-    }
+  RefPtr<Promise> promise = Promise::Create(mOwner, aRv);
+  if (aRv.Failed()) {
+    return nullptr;
   }
-}
 
-bool LockManager::IsGrantableRequest(
-    const LockRequest& aRequest, nsTArray<mozilla::dom::LockRequest>& aQueue) {
-  if (HasBlockingHeldLock(aRequest.mName, aRequest.mMode)) {
-    return false;
-  }
-  if (!aQueue.Length()) {
-    return true;  // Possible as this check also happens before enqueuing
-  }
-  return aQueue[0] == aRequest;
-}
+  mActor->SendQuery()->Then(
+      GetCurrentSerialEventTarget(), __func__,
+      [promise](locks::LockManagerChild::QueryPromise::ResolveOrRejectValue&&
+                    aResult) {
+        if (aResult.IsResolve()) {
+          promise->MaybeResolve(aResult.ResolveValue());
+        } else {
+          promise->MaybeRejectWithUnknownError("Query failed");
+        }
+      });
+  return promise.forget();
+};
 
-bool LockManager::HasBlockingHeldLock(const nsString& aName, LockMode aMode) {
-  for (const auto& lock : mHeldLockSet) {
-    if (lock->mName == aName) {
-      if (aMode == LockMode::Exclusive) {
-        return true;
-      }
-      MOZ_ASSERT(aMode == LockMode::Shared);
-      if (lock->mMode == LockMode::Exclusive) {
-        return true;
-      }
-    }
+void LockManager::Shutdown() {
+  if (mActor) {
+    locks::PLockManagerChild::Send__delete__(mActor);
+    mActor = nullptr;
   }
-  return false;
 }
 
 }  // namespace mozilla::dom
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManager.h firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManager.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManager.h	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManager.h	2021-10-20 19:28:19.000000000 +0000
@@ -13,6 +13,7 @@
 #include "mozilla/dom/BindingDeclarations.h"
 #include "mozilla/dom/Lock.h"
 #include "mozilla/dom/LockManagerBinding.h"
+#include "mozilla/dom/WorkerRef.h"
 #include "nsCycleCollectionParticipant.h"
 #include "nsHashKeys.h"
 #include "nsTHashMap.h"
@@ -25,69 +26,42 @@
 
 class LockGrantedCallback;
 struct LockOptions;
-class Promise;
 
-struct LockRequest {
-  // agent;
-  // clientId;
-  // origin;
-  nsString mName;
-  LockMode mMode;
-  RefPtr<Promise> mPromise;
-  RefPtr<LockGrantedCallback> mCallback;
-
-  bool operator==(const LockRequest& aOther) const {
-    // This operator is needed to remove aborted requests from the queue.
-    // This assumes each request has a unique promise, which should be true
-    // since each creates a new one.
-    MOZ_ASSERT(mPromise && aOther.mPromise,
-               "Promises are null when requests are still active??");
-    return mPromise == aOther.mPromise;
-  }
-};
+namespace locks {
+class LockManagerChild;
+}
 
 class LockManager final : public nsISupports, public nsWrapperCache {
  public:
   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(LockManager)
 
-  explicit LockManager(nsIGlobalObject* aGlobal) : mOwner(aGlobal) {}
-
- protected:
-  ~LockManager() = default;
+  explicit LockManager(nsIGlobalObject* aGlobal);
 
- public:
   nsIGlobalObject* GetParentObject() const { return mOwner; }
 
   JSObject* WrapObject(JSContext* aCx,
                        JS::Handle<JSObject*> aGivenProto) override;
 
-  void Shutdown();
-
-  already_AddRefed<Promise> Request(const nsAString& name,
-                                    LockGrantedCallback& callback,
+  already_AddRefed<Promise> Request(const nsAString& aName,
+                                    LockGrantedCallback& aCallback,
                                     ErrorResult& aRv);
-  already_AddRefed<Promise> Request(const nsAString& name,
-                                    const LockOptions& options,
-                                    LockGrantedCallback& callback,
+  already_AddRefed<Promise> Request(const nsAString& aName,
+                                    const LockOptions& aOptions,
+                                    LockGrantedCallback& aCallback,
                                     ErrorResult& aRv);
 
   already_AddRefed<Promise> Query(ErrorResult& aRv);
 
-  void ReleaseHeldLock(Lock* aLock);
+  void Shutdown();
 
  private:
-  void ProcessRequestQueue(nsTArray<mozilla::dom::LockRequest>& aQueue);
-  bool IsGrantableRequest(const LockRequest& aRequest,
-                          nsTArray<mozilla::dom::LockRequest>& aQueue);
-  bool HasBlockingHeldLock(const nsString& aName, LockMode aMode);
+  ~LockManager() = default;
 
   nsCOMPtr<nsIGlobalObject> mOwner;
+  RefPtr<locks::LockManagerChild> mActor;
 
-  // TODO: These should be behind IPC
-  // XXX: Before that these should be cycle collected or explicitly cleared
-  nsTHashSet<RefPtr<Lock>> mHeldLockSet;
-  nsTHashMap<nsStringHashKey, nsTArray<LockRequest>> mQueueMap;
+  RefPtr<WeakWorkerRef> mWorkerRef;
 };
 
 }  // namespace mozilla::dom
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManagerParent.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManagerParent.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManagerParent.cpp	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManagerParent.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,168 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "LockManagerParent.h"
+#include "LockRequestParent.h"
+
+#include "mozilla/ContentPrincipalInfoHashKey.h"
+#include "mozilla/PrincipalHashKey.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/dom/locks/PLockManager.h"
+#include "mozilla/media/MediaUtils.h"
+#include "nsIDUtils.h"
+#include "nsTHashMap.h"
+
+namespace mozilla::dom::locks {
+
+static nsTHashMap<ContentPrincipalInfoHashKey, WeakPtr<ManagedLocks>>
+    sManagedLocksMap;
+
+using IPCResult = mozilla::ipc::IPCResult;
+
+LockManagerParent::LockManagerParent(
+    const mozilla::ipc::ContentPrincipalInfo& aPrincipalInfo,
+    const nsID& aClientId)
+    : mClientId(NSID_TrimBracketsUTF16(aClientId)),
+      mPrincipalInfo(aPrincipalInfo) {
+  mManagedLocks = sManagedLocksMap.Get(aPrincipalInfo);
+  if (!mManagedLocks) {
+    mManagedLocks = new ManagedLocks();
+    sManagedLocksMap.LookupOrInsert(aPrincipalInfo, mManagedLocks);
+  }
+}
+
+void LockManagerParent::ActorDestroy(ActorDestroyReason aWhy) {
+  if (!mManagedLocks) {
+    return;
+  }
+
+  nsTArray<nsString> affectedResourceNames;
+
+  mManagedLocks->mHeldLocks.RemoveElementsBy(
+      [this, &affectedResourceNames](const RefPtr<LockRequestParent>& request) {
+        bool equals = request->Manager() == this;
+        if (equals) {
+          affectedResourceNames.AppendElement(request->Data().name());
+        }
+        return equals;
+      });
+
+  for (auto& queue : mManagedLocks->mQueueMap) {
+    queue.GetModifiableData()->RemoveElementsBy(
+        [this, &name = queue.GetKey(),
+         &affectedResourceNames](const RefPtr<LockRequestParent>& request) {
+          bool equals = request->Manager() == this;
+          if (equals) {
+            affectedResourceNames.AppendElement(name);
+          }
+          return equals;
+        });
+  }
+
+  for (const nsString& name : affectedResourceNames) {
+    if (auto queue = mManagedLocks->mQueueMap.Lookup(name)) {
+      ProcessRequestQueue(queue.Data());
+    }
+  }
+
+  mManagedLocks = nullptr;
+  // We just decreased the refcount and potentially deleted it, so check whether
+  // the weak pointer still points to anything and remove the entry if not.
+  if (!sManagedLocksMap.Get(mPrincipalInfo)) {
+    sManagedLocksMap.Remove(mPrincipalInfo);
+  }
+}
+
+void LockManagerParent::ProcessRequestQueue(
+    nsTArray<RefPtr<LockRequestParent>>& aQueue) {
+  while (aQueue.Length()) {
+    RefPtr<LockRequestParent> first = aQueue[0];
+    if (!IsGrantableRequest(first->Data())) {
+      break;
+    }
+    aQueue.RemoveElementAt(0);
+    mManagedLocks->mHeldLocks.AppendElement(first);
+    Unused << NS_WARN_IF(!first->SendResolve(first->Data().lockMode(), true));
+  }
+}
+
+bool LockManagerParent::IsGrantableRequest(const IPCLockRequest& aRequest) {
+  for (const auto& held : mManagedLocks->mHeldLocks) {
+    if (held->Data().name() == aRequest.name()) {
+      if (aRequest.lockMode() == LockMode::Exclusive) {
+        return false;
+      }
+      MOZ_ASSERT(aRequest.lockMode() == LockMode::Shared);
+      if (held->Data().lockMode() == LockMode::Exclusive) {
+        return false;
+      }
+    }
+  }
+  return true;
+}
+
+IPCResult LockManagerParent::RecvQuery(QueryResolver&& aResolver) {
+  LockManagerSnapshot snapshot;
+  snapshot.mHeld.Construct();
+  snapshot.mPending.Construct();
+  for (const auto& queueMapEntry : mManagedLocks->mQueueMap) {
+    for (const RefPtr<LockRequestParent>& request : queueMapEntry.GetData()) {
+      LockInfo info;
+      info.mMode.Construct(request->Data().lockMode());
+      info.mName.Construct(request->Data().name());
+      info.mClientId.Construct(
+          static_cast<LockManagerParent*>(request->Manager())->mClientId);
+      if (!snapshot.mPending.Value().AppendElement(info, mozilla::fallible)) {
+        return IPC_FAIL(this, "Out of memory");
+      };
+    }
+  }
+  for (const RefPtr<LockRequestParent>& request : mManagedLocks->mHeldLocks) {
+    LockInfo info;
+    info.mMode.Construct(request->Data().lockMode());
+    info.mName.Construct(request->Data().name());
+    info.mClientId.Construct(
+        static_cast<LockManagerParent*>(request->Manager())->mClientId);
+    if (!snapshot.mHeld.Value().AppendElement(info, mozilla::fallible)) {
+      return IPC_FAIL(this, "Out of memory");
+    };
+  }
+  aResolver(snapshot);
+  return IPC_OK();
+};
+
+already_AddRefed<PLockRequestParent> LockManagerParent::AllocPLockRequestParent(
+    const IPCLockRequest& aRequest) {
+  return MakeAndAddRef<LockRequestParent>(aRequest);
+}
+
+IPCResult LockManagerParent::RecvPLockRequestConstructor(
+    PLockRequestParent* aActor, const IPCLockRequest& aRequest) {
+  RefPtr<LockRequestParent> actor = static_cast<LockRequestParent*>(aActor);
+  nsTArray<RefPtr<LockRequestParent>>& queue =
+      mManagedLocks->mQueueMap.LookupOrInsert(aRequest.name());
+  if (aRequest.steal()) {
+    mManagedLocks->mHeldLocks.RemoveElementsBy(
+        [&aRequest](const RefPtr<LockRequestParent>& aHeld) {
+          if (aHeld->Data().name() == aRequest.name()) {
+            Unused << NS_WARN_IF(!aHeld->SendAbort());
+            return true;
+          }
+          return false;
+        });
+    queue.InsertElementAt(0, actor);
+  } else if (aRequest.ifAvailable() &&
+             (!queue.IsEmpty() || !IsGrantableRequest(actor->Data()))) {
+    Unused << NS_WARN_IF(!aActor->SendResolve(aRequest.lockMode(), false));
+    return IPC_OK();
+  } else {
+    queue.AppendElement(actor);
+  }
+  ProcessRequestQueue(queue);
+  return IPC_OK();
+}
+
+}  // namespace mozilla::dom::locks
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManagerParent.h firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManagerParent.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockManagerParent.h	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockManagerParent.h	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,61 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef DOM_LOCKS_LOCKMANAGERPARENT_H_
+#define DOM_LOCKS_LOCKMANAGERPARENT_H_
+
+#include "mozilla/AlreadyAddRefed.h"
+#include "mozilla/dom/locks/PLockManagerParent.h"
+#include "mozilla/dom/locks/LockRequestParent.h"
+#include "mozilla/ipc/PBackgroundSharedTypes.h"
+
+namespace mozilla::dom::locks {
+
+class ManagedLocks : public SupportsWeakPtr {
+ public:
+  NS_INLINE_DECL_REFCOUNTING(ManagedLocks)
+
+  nsTArray<RefPtr<LockRequestParent>> mHeldLocks;
+  nsTHashMap<nsStringHashKey, nsTArray<RefPtr<LockRequestParent>>> mQueueMap;
+
+ private:
+  ~ManagedLocks() = default;
+};
+
+class LockManagerParent final : public PLockManagerParent {
+  using IPCResult = mozilla::ipc::IPCResult;
+
+ public:
+  NS_INLINE_DECL_REFCOUNTING(LockManagerParent)
+
+  LockManagerParent(const mozilla::ipc::ContentPrincipalInfo& aPrincipalInfo,
+                    const nsID& aClientId);
+
+  void ProcessRequestQueue(nsTArray<RefPtr<LockRequestParent>>& aQueue);
+  bool IsGrantableRequest(const IPCLockRequest& aRequest);
+
+  IPCResult RecvQuery(QueryResolver&& aResolver);
+
+  already_AddRefed<PLockRequestParent> AllocPLockRequestParent(
+      const IPCLockRequest& aRequest);
+  IPCResult RecvPLockRequestConstructor(PLockRequestParent* aActor,
+                                        const IPCLockRequest& aRequest) final;
+
+  ManagedLocks& Locks() { return *mManagedLocks; }
+
+ private:
+  ~LockManagerParent() = default;
+
+  void ActorDestroy(ActorDestroyReason aWhy) final;
+
+  RefPtr<ManagedLocks> mManagedLocks;
+  nsString mClientId;
+  mozilla::ipc::ContentPrincipalInfo mPrincipalInfo;
+};
+
+}  // namespace mozilla::dom::locks
+
+#endif  // DOM_LOCKS_LOCKMANAGERPARENT_H_
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockRequestChild.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockRequestChild.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockRequestChild.cpp	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockRequestChild.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,97 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "LockManagerChild.h"
+#include "LockRequestChild.h"
+
+#include "mozilla/dom/Promise.h"
+#include "mozilla/dom/WorkerPrivate.h"
+
+namespace mozilla::dom::locks {
+
+using IPCResult = mozilla::ipc::IPCResult;
+
+NS_IMPL_ISUPPORTS(LockRequestChild, nsISupports)
+
+// XXX: should be MOZ_CAN_RUN_SCRIPT, but not sure how to call it from closures
+MOZ_CAN_RUN_SCRIPT_BOUNDARY static void RunCallbackAndSettlePromise(
+    LockGrantedCallback& aCallback, mozilla::dom::Lock* lock,
+    Promise& aPromise) {
+  ErrorResult rv;
+  if (RefPtr<Promise> result = aCallback.Call(
+          lock, rv, nullptr, CallbackObject::eRethrowExceptions)) {
+    aPromise.MaybeResolve(result);
+  } else if (rv.Failed() && !rv.IsUncatchableException()) {
+    aPromise.MaybeReject(std::move(rv));
+    return;
+  } else {
+    aPromise.MaybeResolveWithUndefined();
+  }
+  // This is required even with no failure. IgnoredErrorResult is not an option
+  // since MaybeReject does not accept it.
+  rv.WouldReportJSException();
+  if (NS_WARN_IF(rv.IsUncatchableException())) {
+    rv.SuppressException();  // XXX: Why does this happen anyway?
+  }
+  MOZ_ASSERT(!rv.Failed());
+}
+
+LockRequestChild::LockRequestChild(
+    const LockRequest& aRequest,
+    const Optional<OwningNonNull<AbortSignal>>& aSignal)
+    : mRequest(aRequest) {
+  if (aSignal.WasPassed()) {
+    Follow(&aSignal.Value());
+  }
+  if (!NS_IsMainThread()) {
+    mWorkerRef = StrongWorkerRef::Create(
+        GetCurrentThreadWorkerPrivate(), "LockManager",
+        [self = RefPtr(this)]() { self->mWorkerRef = nullptr; });
+  }
+}
+
+IPCResult LockRequestChild::RecvResolve(const LockMode& aLockMode,
+                                        bool aIsAvailable) {
+  Unfollow();
+
+  RefPtr<Lock> lock;
+  RefPtr<Promise> promise;
+  if (aIsAvailable) {
+    IgnoredErrorResult err;
+    lock =
+        new Lock(static_cast<LockManagerChild*>(Manager())->GetParentObject(),
+                 this, mRequest.mName, aLockMode, mRequest.mPromise, err);
+    if (MOZ_UNLIKELY(err.Failed())) {
+      mRequest.mPromise->MaybeRejectWithUnknownError(
+          "Failed to allocate a lock");
+      return IPC_OK();
+    }
+    lock->GetWaitingPromise().AppendNativeHandler(lock);
+    promise = &lock->GetWaitingPromise();
+  } else {
+    // We are in `ifAvailable: true` mode and the lock is not available.
+    // There is no waitingPromise since there is no lock, so settle the promise
+    // from the request instead.
+    // This matches "If ifAvailable is true and request is not grantable" step.
+    promise = mRequest.mPromise;
+  }
+
+  RunCallbackAndSettlePromise(*mRequest.mCallback, lock, *promise);
+  return IPC_OK();
+}
+
+IPCResult LockRequestChild::RecvAbort() {
+  Unfollow();
+  mRequest.mPromise->MaybeRejectWithAbortError("The lock request is aborted");
+  return IPC_OK();
+}
+
+void LockRequestChild::RunAbortAlgorithm() {
+  RecvAbort();
+  Send__delete__(this, true);
+}
+
+}  // namespace mozilla::dom::locks
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockRequestChild.h firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockRequestChild.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockRequestChild.h	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockRequestChild.h	2021-10-20 19:28:19.000000000 +0000
@@ -0,0 +1,49 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef DOM_LOCKS_LOCKREQUESTCHILD_H_
+#define DOM_LOCKS_LOCKREQUESTCHILD_H_
+
+#include "mozilla/dom/locks/PLockRequestChild.h"
+#include "mozilla/dom/Lock.h"
+#include "mozilla/dom/WorkerRef.h"
+#include "nsISupportsImpl.h"
+
+namespace mozilla::dom::locks {
+
+struct LockRequest {
+  nsString mName;
+  RefPtr<Promise> mPromise;
+  RefPtr<LockGrantedCallback> mCallback;
+};
+
+class LockRequestChild final : public PLockRequestChild,
+                               public AbortFollower,
+                               public SupportsWeakPtr {
+  using IPCResult = mozilla::ipc::IPCResult;
+
+  NS_DECL_ISUPPORTS
+
+ public:
+  explicit LockRequestChild(
+      const LockRequest& aRequest,
+      const Optional<OwningNonNull<AbortSignal>>& aSignal);
+
+  IPCResult RecvResolve(const LockMode& aLockMode, bool aIsAvailable);
+  IPCResult RecvAbort();
+
+  void RunAbortAlgorithm() final;
+
+ private:
+  ~LockRequestChild() = default;
+
+  LockRequest mRequest;
+  RefPtr<StrongWorkerRef> mWorkerRef;
+};
+
+}  // namespace mozilla::dom::locks
+
+#endif  // DOM_LOCKS_LOCKREQUESTCHILD_H_
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockRequestParent.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockRequestParent.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockRequestParent.cpp	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockRequestParent.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "LockManagerParent.h"
+#include "LockRequestParent.h"
+
+#include "mozilla/dom/Promise.h"
+
+namespace mozilla::dom::locks {
+
+mozilla::ipc::IPCResult LockRequestParent::Recv__delete__(bool aAborted) {
+  RefPtr<LockManagerParent> manager =
+      static_cast<LockManagerParent*>(Manager());
+  ManagedLocks& managed = manager->Locks();
+
+  DebugOnly<bool> unheld = managed.mHeldLocks.RemoveElement(this);
+  MOZ_ASSERT_IF(!aAborted, unheld);
+
+  if (auto queue = managed.mQueueMap.Lookup(mRequest.name())) {
+    if (aAborted) {
+      DebugOnly<bool> dequeued = queue.Data().RemoveElement(this);
+      MOZ_ASSERT_IF(!unheld, dequeued);
+    }
+    manager->ProcessRequestQueue(queue.Data());
+    if (queue.Data().IsEmpty()) {
+      // Remove if empty, to prevent the queue map from growing forever
+      queue.Remove();
+    }
+  }
+  // or else, the queue is removed during the previous lock release (since
+  // multiple held locks are possible with `shared: true`)
+  return IPC_OK();
+}
+
+}  // namespace mozilla::dom::locks
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockRequestParent.h firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockRequestParent.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/LockRequestParent.h	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/LockRequestParent.h	2021-10-20 19:28:19.000000000 +0000
@@ -0,0 +1,35 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef DOM_LOCKS_LOCKREQUESTPARENT_H_
+#define DOM_LOCKS_LOCKREQUESTPARENT_H_
+
+#include "mozilla/dom/locks/PLockManager.h"
+#include "mozilla/dom/locks/PLockRequestParent.h"
+#include "nsISupportsImpl.h"
+
+namespace mozilla::dom::locks {
+
+class LockRequestParent final : public PLockRequestParent {
+ public:
+  NS_INLINE_DECL_REFCOUNTING(LockRequestParent)
+
+  explicit LockRequestParent(const IPCLockRequest& aRequest)
+      : mRequest(aRequest){};
+
+  const IPCLockRequest& Data() { return mRequest; }
+
+  mozilla::ipc::IPCResult Recv__delete__(bool aAborted);
+
+ private:
+  ~LockRequestParent() = default;
+
+  IPCLockRequest mRequest;
+};
+
+}  // namespace mozilla::dom::locks
+
+#endif  // DOM_LOCKS_LOCKREQUESTPARENT_H_
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/moz.build firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/moz.build
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/moz.build	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/moz.build	2021-10-20 19:28:18.000000000 +0000
@@ -7,14 +7,33 @@
 with Files("**"):
     BUG_COMPONENT = ("Core", "DOM: Core & HTML")
 
+MOCHITEST_MANIFESTS += ["test/mochitest.ini"]
+
 EXPORTS.mozilla.dom += [
     "Lock.h",
     "LockManager.h",
 ]
 
+EXPORTS.mozilla.dom.locks += [
+    "IPCUtils.h",
+    "LockManagerChild.h",
+    "LockManagerParent.h",
+    "LockRequestChild.h",
+    "LockRequestParent.h",
+]
+
 UNIFIED_SOURCES += [
     "Lock.cpp",
     "LockManager.cpp",
+    "LockManagerChild.cpp",
+    "LockManagerParent.cpp",
+    "LockRequestChild.cpp",
+    "LockRequestParent.cpp",
+]
+
+IPDL_SOURCES += [
+    "PLockManager.ipdl",
+    "PLockRequest.ipdl",
 ]
 
 include("/ipc/chromium/chromium-config.mozbuild")
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/PLockManager.ipdl firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/PLockManager.ipdl
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/PLockManager.ipdl	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/PLockManager.ipdl	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,39 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+include protocol PBackground;
+include protocol PLockRequest;
+
+include "mozilla/dom/locks/IPCUtils.h";
+
+using mozilla::dom::LockMode from "mozilla/dom/LockManagerBinding.h";
+using mozilla::dom::LockManagerSnapshot from "mozilla/dom/LockManagerBinding.h";
+
+namespace mozilla {
+namespace dom {
+namespace locks {
+
+struct IPCLockRequest {
+  nsString name;
+  LockMode lockMode;
+  bool ifAvailable;
+  bool steal;
+};
+
+[RefCounted]
+protocol PLockManager {
+  manager PBackground;
+  manages PLockRequest;
+
+ parent:
+  async Query() returns (LockManagerSnapshot snapshot);
+
+  async PLockRequest(IPCLockRequest aRequest);
+
+  async __delete__();
+};
+
+} // namespace cache
+} // namespace dom
+} // namespace mozilla
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/PLockRequest.ipdl firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/PLockRequest.ipdl
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/PLockRequest.ipdl	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/PLockRequest.ipdl	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,29 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+include protocol PLockManager;
+
+include "mozilla/dom/locks/IPCUtils.h";
+
+using mozilla::dom::LockMode from "mozilla/dom/LockManagerBinding.h";
+
+namespace mozilla {
+namespace dom {
+namespace locks {
+
+[RefCounted]
+protocol PLockRequest {
+  manager PLockManager;
+
+ child:
+  async Resolve(LockMode aMode, bool aIsAvailable);
+  async Abort();
+
+ parent:
+  async __delete__(bool aAborted);
+};
+
+} // namespace cache
+} // namespace dom
+} // namespace mozilla
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/test/.eslintrc.js firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/test/.eslintrc.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/test/.eslintrc.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/test/.eslintrc.js	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,5 @@
+"use strict";
+
+module.exports = {
+  extends: ["plugin:mozilla/mochitest-test"],
+};
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/test/file_strongworker.js firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/test/file_strongworker.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/test/file_strongworker.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/test/file_strongworker.js	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,5 @@
+navigator.locks.request("exclusive", () => {
+  const channel = new BroadcastChannel("strongworker");
+  channel.postMessage("lock acquired");
+});
+postMessage("onload");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/test/mochitest.ini firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/test/mochitest.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/test/mochitest.ini	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/test/mochitest.ini	2021-10-20 19:28:19.000000000 +0000
@@ -0,0 +1,8 @@
+[DEFAULT]
+scheme = https
+prefs =
+  dom.weblocks.enabled=true
+
+[test_strongworker.html]
+support-files =
+  file_strongworker.js
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/test/test_strongworker.html firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/test/test_strongworker.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/locks/test/test_strongworker.html	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/locks/test/test_strongworker.html	2021-10-20 19:28:18.000000000 +0000
@@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<link rel="stylesheet" href="/tests/SimpleTest/test.css"/>
+
+<script>
+  SimpleTest.waitForExplicitFinish();
+
+  async function run() {
+    const channel = new BroadcastChannel("strongworker");
+    await navigator.locks.request("exclusive", async () => {
+      await new Promise(resolve => {
+        let worker = new Worker("./file_strongworker.js");
+        worker.onmessage = resolve; // onload
+      });
+      const query = await navigator.locks.query();
+      is(query.pending.length, 1, "Pending request exists");
+
+      // Garbage collect the worker
+      SpecialPowers.DOMWindowUtils.garbageCollect();
+    });
+
+    channel.onmessage = async event => {
+      const query = await navigator.locks.query();
+      is(query.pending.length, 0, "No pending request");
+      SimpleTest.finish();
+    };
+  }
+  run();
+</script>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/manifest/test/cookie_checker.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/manifest/test/cookie_checker.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/manifest/test/cookie_checker.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/manifest/test/cookie_checker.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,5 +1,5 @@
 "use strict";
-Components.utils.import("resource://gre/modules/NetUtil.jsm");
+let { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
 
 function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 200);
@@ -8,7 +8,9 @@
   response.setHeader("Content-Type", "application/json", false);
 
   // CORS stuff
-  const origin = request.hasHeader("Origin") ? request.getHeader("Origin") : null;
+  const origin = request.hasHeader("Origin")
+    ? request.getHeader("Origin")
+    : null;
   if (origin) {
     response.setHeader("Access-Control-Allow-Origin", origin);
     response.setHeader("Access-Control-Allow-Credentials", "true");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/manifest/test/file_testserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/manifest/test/file_testserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/manifest/test/file_testserver.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/manifest/test/file_testserver.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,25 +1,26 @@
 "use strict";
-Components.utils.import("resource://gre/modules/NetUtil.jsm");
+let { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 
 function loadHTMLFromFile(path) {
   // Load the HTML to return in the response from file.
   // Since it's relative to the cwd of the test runner, we start there and
   // append to get to the actual path of the file.
-  const testHTMLFile =
-    Components.classes["@mozilla.org/file/directory_service;1"].
-    getService(Components.interfaces.nsIProperties).
-    get("CurWorkD", Components.interfaces.nsIFile);
-
-  const testHTMLFileStream =
-    Components.classes["@mozilla.org/network/file-input-stream;1"].
-    createInstance(Components.interfaces.nsIFileInputStream);
+  const testHTMLFile = Components.classes[
+    "@mozilla.org/file/directory_service;1"
+  ]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
+
+  const testHTMLFileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
 
   path
     .split("/")
     .filter(path => path)
     .reduce((file, path) => {
-      testHTMLFile.append(path)
+      testHTMLFile.append(path);
       return testHTMLFile;
     }, testHTMLFile);
   testHTMLFileStream.init(testHTMLFile, -1, 0, 0);
@@ -34,17 +35,21 @@
   response.setHeader("Cache-Control", "no-cache", false);
 
   // Deliver the CSP policy encoded in the URL
-  if(query.has("csp")){
+  if (query.has("csp")) {
     response.setHeader("Content-Security-Policy", query.get("csp"), false);
   }
 
   // Deliver the CSPRO policy encoded in the URL
-  if(query.has("cspro")){
-    response.setHeader("Content-Security-Policy-Report-Only", query.get("cspro"), false);
+  if (query.has("cspro")) {
+    response.setHeader(
+      "Content-Security-Policy-Report-Only",
+      query.get("cspro"),
+      false
+    );
   }
 
   // Deliver the CORS header in the URL
-  if(query.has("cors")){
+  if (query.has("cors")) {
     response.setHeader("Access-Control-Allow-Origin", query.get("cors"), false);
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/manifest/test/resource.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/manifest/test/resource.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/manifest/test/resource.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/manifest/test/resource.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -19,64 +19,64 @@
  * <h1>hello</h1>
  */
 //global handleRequest
-'use strict';
+"use strict";
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 const HTTPStatus = new Map([
-  [100, 'Continue'],
-  [101, 'Switching Protocol'],
-  [200, 'OK'],
-  [201, 'Created'],
-  [202, 'Accepted'],
-  [203, 'Non-Authoritative Information'],
-  [204, 'No Content'],
-  [205, 'Reset Content'],
-  [206, 'Partial Content'],
-  [300, 'Multiple Choice'],
-  [301, 'Moved Permanently'],
-  [302, 'Found'],
-  [303, 'See Other'],
-  [304, 'Not Modified'],
-  [305, 'Use Proxy'],
-  [306, 'unused'],
-  [307, 'Temporary Redirect'],
-  [308, 'Permanent Redirect'],
-  [400, 'Bad Request'],
-  [401, 'Unauthorized'],
-  [402, 'Payment Required'],
-  [403, 'Forbidden'],
-  [404, 'Not Found'],
-  [405, 'Method Not Allowed'],
-  [406, 'Not Acceptable'],
-  [407, 'Proxy Authentication Required'],
-  [408, 'Request Timeout'],
-  [409, 'Conflict'],
-  [410, 'Gone'],
-  [411, 'Length Required'],
-  [412, 'Precondition Failed'],
-  [413, 'Request Entity Too Large'],
-  [414, 'Request-URI Too Long'],
-  [415, 'Unsupported Media Type'],
-  [416, 'Requested Range Not Satisfiable'],
-  [417, 'Expectation Failed'],
-  [500, 'Internal Server Error'],
-  [501, 'Not Implemented'],
-  [502, 'Bad Gateway'],
-  [503, 'Service Unavailable'],
-  [504, 'Gateway Timeout'],
-  [505, 'HTTP Version Not Supported']
+  [100, "Continue"],
+  [101, "Switching Protocol"],
+  [200, "OK"],
+  [201, "Created"],
+  [202, "Accepted"],
+  [203, "Non-Authoritative Information"],
+  [204, "No Content"],
+  [205, "Reset Content"],
+  [206, "Partial Content"],
+  [300, "Multiple Choice"],
+  [301, "Moved Permanently"],
+  [302, "Found"],
+  [303, "See Other"],
+  [304, "Not Modified"],
+  [305, "Use Proxy"],
+  [306, "unused"],
+  [307, "Temporary Redirect"],
+  [308, "Permanent Redirect"],
+  [400, "Bad Request"],
+  [401, "Unauthorized"],
+  [402, "Payment Required"],
+  [403, "Forbidden"],
+  [404, "Not Found"],
+  [405, "Method Not Allowed"],
+  [406, "Not Acceptable"],
+  [407, "Proxy Authentication Required"],
+  [408, "Request Timeout"],
+  [409, "Conflict"],
+  [410, "Gone"],
+  [411, "Length Required"],
+  [412, "Precondition Failed"],
+  [413, "Request Entity Too Large"],
+  [414, "Request-URI Too Long"],
+  [415, "Unsupported Media Type"],
+  [416, "Requested Range Not Satisfiable"],
+  [417, "Expectation Failed"],
+  [500, "Internal Server Error"],
+  [501, "Not Implemented"],
+  [502, "Bad Gateway"],
+  [503, "Service Unavailable"],
+  [504, "Gateway Timeout"],
+  [505, "HTTP Version Not Supported"],
 ]);
 
 function handleRequest(request, response) {
   const queryMap = new URLSearchParams(request.queryString);
-  if (queryMap.has('statusCode')) {
-    let statusCode = parseInt(queryMap.get('statusCode'));
+  if (queryMap.has("statusCode")) {
+    let statusCode = parseInt(queryMap.get("statusCode"));
     let statusText = HTTPStatus.get(statusCode);
-    queryMap.delete('statusCode');
-    response.setStatusLine('1.1', statusCode, statusText);
+    queryMap.delete("statusCode");
+    response.setStatusLine("1.1", statusCode, statusText);
   }
-  if (queryMap.has('body')) {
-    let body = queryMap.get('body') || '';
-    queryMap.delete('body');
+  if (queryMap.has("body")) {
+    let body = queryMap.get("body") || "";
+    queryMap.delete("body");
     response.write(decodeURIComponent(body));
   }
   for (let [key, value] of queryMap.entries()) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/mediacapabilities/MediaCapabilities.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/media/mediacapabilities/MediaCapabilities.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/mediacapabilities/MediaCapabilities.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/mediacapabilities/MediaCapabilities.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -32,6 +32,7 @@
 #include "mozilla/dom/WorkerRef.h"
 #include "mozilla/layers/KnowsCompositor.h"
 #include "nsContentUtils.h"
+#include "WindowRenderer.h"
 
 static mozilla::LazyLogModule sMediaCapabilitiesLog("MediaCapabilities");
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/MediaDecoder.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/media/MediaDecoder.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/MediaDecoder.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/MediaDecoder.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -35,6 +35,7 @@
 #include "nsPrintfCString.h"
 #include "nsServiceManagerUtils.h"
 #include "nsTArray.h"
+#include "WindowRenderer.h"
 #include <algorithm>
 #include <limits>
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/mediasink/AudioSink.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/media/mediasink/AudioSink.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/mediasink/AudioSink.cpp	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/mediasink/AudioSink.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -291,7 +291,7 @@
              mCurrentData->mTime.ToMicroseconds(),
              mCurrentData->Frames() - mCursor->Available(), framesToPop);
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     mOwnerThread->Dispatch(NS_NewRunnableFunction(
         "AudioSink:AddMarker",
         [startTime = mCurrentData->mTime.ToMicroseconds(),
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/mediasink/DecodedStream.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/media/mediasink/DecodedStream.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/mediasink/DecodedStream.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/mediasink/DecodedStream.cpp	2021-10-20 19:28:18.000000000 +0000
@@ -488,7 +488,7 @@
   MOZ_ASSERT(mStartTime.isNothing(), "playback already started.");
 
   AUTO_PROFILER_LABEL(FUNCTION_SIGNATURE, MEDIA_PLAYBACK);
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsPrintfCString markerString("StartTime=%" PRId64,
                                  aStartTime.ToMicroseconds());
     PLAYBACK_PROFILER_MARKER(markerString);
@@ -665,7 +665,7 @@
     return;
   }
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsPrintfCString markerString("Playing=%s", aPlaying ? "true" : "false");
     PLAYBACK_PROFILER_MARKER(markerString);
   }
@@ -675,7 +675,7 @@
 
 void DecodedStream::SetVolume(double aVolume) {
   AssertOwnerThread();
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsPrintfCString markerString("Volume=%f", aVolume);
     PLAYBACK_PROFILER_MARKER(markerString);
   }
@@ -690,7 +690,7 @@
 
 void DecodedStream::SetPlaybackRate(double aPlaybackRate) {
   AssertOwnerThread();
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsPrintfCString markerString("PlaybackRate=%f", aPlaybackRate);
     PLAYBACK_PROFILER_MARKER(markerString);
   }
@@ -705,7 +705,7 @@
 
 void DecodedStream::SetPreservesPitch(bool aPreservesPitch) {
   AssertOwnerThread();
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsPrintfCString markerString("PreservesPitch=%s",
                                  aPreservesPitch ? "true" : "false");
     PLAYBACK_PROFILER_MARKER(markerString);
@@ -1088,7 +1088,7 @@
   mLastOutputTime = time;
   auto currentTime = GetPosition();
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsPrintfCString markerString("OutputTime=%" PRId64,
                                  currentTime.ToMicroseconds());
     PLAYBACK_PROFILER_MARKER(markerString);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/mediasource/TrackBuffersManager.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/media/mediasource/TrackBuffersManager.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/mediasource/TrackBuffersManager.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/mediasource/TrackBuffersManager.cpp	2021-10-20 19:28:19.000000000 +0000
@@ -2123,7 +2123,7 @@
              aSamples.Length(), aTrackData.mInfo->mMimeType.get(),
              aIntervals.GetStart().ToMicroseconds(),
              aIntervals.GetEnd().ToMicroseconds());
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsPrintfCString markerString(
         "Processing %zu %s frames(start:%" PRId64 " end:%" PRId64 ")",
         aSamples.Length(), aTrackData.mInfo->mMimeType.get(),
@@ -2348,7 +2348,7 @@
             lastRemovedIndex - firstRemovedIndex.ref() + 1,
             removedIntervals.GetStart().ToSeconds(),
             removedIntervals.GetEnd().ToSeconds());
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsPrintfCString markerString(
         "Removing frames from:%u (frames:%u) ([%f, %f))",
         firstRemovedIndex.ref(), lastRemovedIndex - firstRemovedIndex.ref() + 1,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/platforms/wmf/WMFAudioMFTManager.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/media/platforms/wmf/WMFAudioMFTManager.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/platforms/wmf/WMFAudioMFTManager.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/platforms/wmf/WMFAudioMFTManager.cpp	2021-10-20 19:28:19.000000000 +0000
@@ -185,6 +185,7 @@
 
 HRESULT
 WMFAudioMFTManager::Input(MediaRawData* aSample) {
+  mLastInputTime = aSample->mTime;
   return mDecoder->Input(aSample->Data(), uint32_t(aSample->Size()),
                          aSample->mTime.ToMicroseconds(),
                          aSample->mDuration.ToMicroseconds());
@@ -222,6 +223,7 @@
   RefPtr<IMFSample> sample;
   HRESULT hr;
   int typeChangeCount = 0;
+  const auto oldAudioRate = mAudioRate;
   while (true) {
     hr = mDecoder->Output(&sample);
     if (hr == MF_E_TRANSFORM_NEED_MORE_INPUT) {
@@ -285,6 +287,11 @@
     return S_OK;
   }
 
+  if (oldAudioRate != mAudioRate) {
+    LOG("Audio rate changed from %" PRIu32 " to %" PRIu32, oldAudioRate,
+        mAudioRate);
+  }
+
   AlignedAudioBuffer audioData(numSamples);
   if (!audioData) {
     return E_OUTOFMEMORY;
@@ -297,9 +304,18 @@
   TimeUnit duration = FramesToTimeUnit(numFrames, mAudioRate);
   NS_ENSURE_TRUE(duration.IsValid(), E_FAIL);
 
+  const bool isAudioRateChangedToHigher = oldAudioRate < mAudioRate;
+  if (IsPartialOutput(duration, isAudioRateChangedToHigher)) {
+    LOG("Encounter a partial frame?! duration shrinks from %" PRId64
+        " to %" PRId64,
+        mLastOutputDuration.ToMicroseconds(), duration.ToMicroseconds());
+    return MF_E_TRANSFORM_NEED_MORE_INPUT;
+  }
+
   aOutData = new AudioData(aStreamOffset, pts, std::move(audioData),
                            mAudioChannels, mAudioRate, mChannelsMap);
   MOZ_DIAGNOSTIC_ASSERT(duration == aOutData->mDuration, "must be equal");
+  mLastOutputDuration = aOutData->mDuration;
 
 #ifdef LOG_SAMPLE_DECODE
   LOG("Decoded audio sample! timestamp=%lld duration=%lld currentLength=%u",
@@ -309,6 +325,26 @@
   return S_OK;
 }
 
+bool WMFAudioMFTManager::IsPartialOutput(
+    const media::TimeUnit& aNewOutputDuration,
+    const bool aIsRateChangedToHigher) const {
+  // This issue was found in Windows11, where AAC MFT decoder would incorrectly
+  // output partial output samples to us, even if MS's documentation said it
+  // won't happen [1]. More details are described in bug 1731430 comment 26.
+  // If the audio rate isn't changed to higher, which would result in shorter
+  // duration, but the new output duration is still shorter than the last one,
+  // then new output is possible an incorrect partial output.
+  // [1]
+  // https://docs.microsoft.com/en-us/windows/win32/medfound/mft-message-command-drain
+  if (mStreamType != AAC) {
+    return false;
+  }
+  if (mLastOutputDuration > aNewOutputDuration && !aIsRateChangedToHigher) {
+    return true;
+  }
+  return false;
+}
+
 void WMFAudioMFTManager::Shutdown() { mDecoder = nullptr; }
 
 }  // namespace mozilla
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/platforms/wmf/WMFAudioMFTManager.h firefox-trunk-95.0~a1~hg20211020r596404/dom/media/platforms/wmf/WMFAudioMFTManager.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/platforms/wmf/WMFAudioMFTManager.h	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/platforms/wmf/WMFAudioMFTManager.h	2021-10-20 19:28:19.000000000 +0000
@@ -39,6 +39,9 @@
  private:
   HRESULT UpdateOutputType();
 
+  bool IsPartialOutput(const media::TimeUnit& aNewOutputDuration,
+                       const bool aIsRateChangedToHigher) const;
+
   uint32_t mAudioChannels;
   AudioConfig::ChannelLayout::ChannelMap mChannelsMap;
   uint32_t mAudioRate;
@@ -50,6 +53,9 @@
   const GUID& GetMFTGUID();
   const GUID& GetMediaSubtypeGUID();
 
+  media::TimeUnit mLastInputTime = media::TimeUnit::Zero();
+  media::TimeUnit mLastOutputDuration = media::TimeUnit::Zero();
+
   bool mFirstFrame = true;
 };
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/allowed.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/allowed.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/allowed.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/allowed.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,13 +1,16 @@
 function parseQuery(request, key) {
-  var params = request.queryString.split('&');
+  var params = request.queryString.split("&");
   for (var j = 0; j < params.length; ++j) {
     var p = params[j];
-	if (p == key)
-	  return true;
-    if (p.indexOf(key + "=") == 0)
-	  return p.substring(key.length + 1);
-	if (p.indexOf("=") < 0 && key == "")
-	  return p;
+    if (p == key) {
+      return true;
+    }
+    if (p.indexOf(key + "=") == 0) {
+      return p.substring(key.length + 1);
+    }
+    if (p.indexOf("=") < 0 && key == "") {
+      return p;
+    }
   }
   return false;
 }
@@ -20,25 +23,26 @@
   ogv: "video/ogg",
   oga: "audio/ogg",
   webm: "video/webm",
-  wav: "audio/x-wav"
+  wav: "audio/x-wav",
 };
 
 // Return file with name as per the query string with access control
 // allow headers.
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var resource = parseQuery(request, "");
 
-  var file = Components.classes["@mozilla.org/file/directory_service;1"].
-                        getService(Components.interfaces.nsIProperties).
-                        get("CurWorkD", Components.interfaces.nsIFile);
-  var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
-                        createInstance(Components.interfaces.nsIFileInputStream);
-  var bis  = Components.classes["@mozilla.org/binaryinputstream;1"].
-                        createInstance(Components.interfaces.nsIBinaryInputStream);
+  var file = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
+  var fis = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
+  var bis = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   var paths = "tests/dom/media/test/" + resource;
   var split = paths.split("/");
-  for(var i = 0; i < split.length; ++i) {
+  for (var i = 0; i < split.length; ++i) {
     file.append(split[i]);
   }
   fis.init(file, -1, -1, false);
@@ -46,9 +50,12 @@
   bis.setInputStream(fis);
   var bytes = bis.readBytes(bis.available());
   response.setStatusLine(request.httpVersion, 206, "Partial Content");
-  response.setHeader("Content-Range", "bytes 0-" + (bytes.length - 1) + "/" + bytes.length);
-  response.setHeader("Content-Length", ""+bytes.length, false);
-  var ext = resource.substring(resource.lastIndexOf(".")+1);
+  response.setHeader(
+    "Content-Range",
+    "bytes 0-" + (bytes.length - 1) + "/" + bytes.length
+  );
+  response.setHeader("Content-Length", "" + bytes.length, false);
+  var ext = resource.substring(resource.lastIndexOf(".") + 1);
   response.setHeader("Content-Type", types[ext], false);
   response.setHeader("Access-Control-Allow-Origin", "*");
   response.write(bytes, bytes.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/cancellable_request.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/cancellable_request.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/cancellable_request.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/cancellable_request.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,13 +1,16 @@
 function parseQuery(request, key) {
-  var params = request.queryString.split('&');
+  var params = request.queryString.split("&");
   for (var j = 0; j < params.length; ++j) {
     var p = params[j];
-	if (p == key)
-	  return true;
-    if (p.indexOf(key + "=") == 0)
-	  return p.substring(key.length + 1);
-	if (p.indexOf("=") < 0 && key == "")
-	  return p;
+    if (p == key) {
+      return true;
+    }
+    if (p.indexOf(key + "=") == 0) {
+      return p.substring(key.length + 1);
+    }
+    if (p.indexOf("=") < 0 && key == "") {
+      return p;
+    }
   }
   return false;
 }
@@ -16,18 +19,18 @@
   array.push(String.fromCharCode((input >> 24) & 0xff));
   array.push(String.fromCharCode((input >> 16) & 0xff));
   array.push(String.fromCharCode((input >> 8) & 0xff));
-  array.push(String.fromCharCode((input) & 0xff));
+  array.push(String.fromCharCode(input & 0xff));
 }
 
 function push32LE(array, input) {
-  array.push(String.fromCharCode((input) & 0xff));
+  array.push(String.fromCharCode(input & 0xff));
   array.push(String.fromCharCode((input >> 8) & 0xff));
   array.push(String.fromCharCode((input >> 16) & 0xff));
   array.push(String.fromCharCode((input >> 24) & 0xff));
 }
 
 function push16LE(array, input) {
-  array.push(String.fromCharCode((input) & 0xff));
+  array.push(String.fromCharCode(input & 0xff));
   array.push(String.fromCharCode((input >> 8) & 0xff));
 }
 
@@ -60,19 +63,26 @@
 
 const CC = Components.Constructor;
 const Timer = CC("@mozilla.org/timer;1", "nsITimer", "initWithCallback");
-const BinaryOutputStream = CC("@mozilla.org/binaryoutputstream;1",
-                             "nsIBinaryOutputStream",
-                             "setOutputStream");
+const BinaryOutputStream = CC(
+  "@mozilla.org/binaryoutputstream;1",
+  "nsIBinaryOutputStream",
+  "setOutputStream"
+);
 
 function poll(f) {
   if (f()) {
     return;
   }
-  new Timer(function() { poll(f); }, 100, Ci.nsITimer.TYPE_ONE_SHOT);
+  new Timer(
+    function() {
+      poll(f);
+    },
+    100,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var cancel = parseQuery(request, "cancelkey");
   if (cancel) {
     setState(cancel[1], "cancelled");
@@ -89,47 +99,46 @@
 
   var key = parseQuery(request, "key");
   response.setHeader("Content-Type", "audio/x-wav");
-  response.setHeader("Content-Length", ""+bytes.length, false);
+  response.setHeader("Content-Length", "" + bytes.length, false);
 
   var out = new BinaryOutputStream(response.bodyOutputStream);
 
-  var start = 0, end = bytes.length - 1;
-  if (request.hasHeader("Range"))
-  {
+  var start = 0,
+    end = bytes.length - 1;
+  if (request.hasHeader("Range")) {
     var rangeMatch = request.getHeader("Range").match(/^bytes=(\d+)?-(\d+)?$/);
 
-    if (rangeMatch[1] !== undefined)
+    if (rangeMatch[1] !== undefined) {
       start = parseInt(rangeMatch[1], 10);
+    }
 
-    if (rangeMatch[2] !== undefined)
+    if (rangeMatch[2] !== undefined) {
       end = parseInt(rangeMatch[2], 10);
+    }
 
     // No start given, so the end is really the count of bytes from the
     // end of the file.
-    if (start === undefined)
-    {
+    if (start === undefined) {
       start = Math.max(0, bytes.length - end);
-      end   = bytes.length - 1;
+      end = bytes.length - 1;
     }
 
     // start and end are inclusive
-    if (end === undefined || end >= bytes.length)
+    if (end === undefined || end >= bytes.length) {
       end = bytes.length - 1;
+    }
 
-    if (end < start)
-    {
+    if (end < start) {
       response.setStatusLine(request.httpVersion, 200, "OK");
       start = 0;
       end = bytes.length - 1;
-    }
-    else
-    {
+    } else {
       response.setStatusLine(request.httpVersion, 206, "Partial Content");
       var contentRange = "bytes " + start + "-" + end + "/" + bytes.length;
       response.setHeader("Content-Range", contentRange);
     }
   }
-  
+
   if (start > 0) {
     // Send all requested data
     out.write(bytes.slice(start, end + 1), end + 1 - start);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/contentType.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/contentType.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/contentType.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/contentType.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,15 +1,18 @@
 // Parse the query string, and give us the value for a certain key, or false if
 // it does not exist.
 function parseQuery(request, key) {
-  var params = request.queryString.split('?')[0].split('&');
+  var params = request.queryString.split("?")[0].split("&");
   for (var j = 0; j < params.length; ++j) {
     var p = params[j];
-    if (p == key)
+    if (p == key) {
       return true;
-    if (p.indexOf(key + "=") == 0)
+    }
+    if (p.indexOf(key + "=") == 0) {
       return p.substring(key.length + 1);
-    if (p.indexOf("=") < 0 && key == "")
+    }
+    if (p.indexOf("=") < 0 && key == "") {
       return p;
+    }
   }
   return false;
 }
@@ -20,27 +23,31 @@
     var filename = parseQuery(request, "file");
 
     const CC = Components.Constructor;
-    const BinaryOutputStream = CC("@mozilla.org/binaryoutputstream;1",
-                                  "nsIBinaryOutputStream",
-                                  "setOutputStream");
-    var file = Components.classes["@mozilla.org/file/directory_service;1"].
-      getService(Components.interfaces.nsIProperties).
-      get("CurWorkD", Components.interfaces.nsIFile);
-    var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
-      createInstance(Components.interfaces.nsIFileInputStream);
-    var bis  = Components.classes["@mozilla.org/binaryinputstream;1"].
-      createInstance(Components.interfaces.nsIBinaryInputStream);
+    const BinaryOutputStream = CC(
+      "@mozilla.org/binaryoutputstream;1",
+      "nsIBinaryOutputStream",
+      "setOutputStream"
+    );
+    var file = Components.classes["@mozilla.org/file/directory_service;1"]
+      .getService(Components.interfaces.nsIProperties)
+      .get("CurWorkD", Components.interfaces.nsIFile);
+    var fis = Components.classes[
+      "@mozilla.org/network/file-input-stream;1"
+    ].createInstance(Components.interfaces.nsIFileInputStream);
+    var bis = Components.classes[
+      "@mozilla.org/binaryinputstream;1"
+    ].createInstance(Components.interfaces.nsIBinaryInputStream);
     var paths = "tests/dom/media/test/" + filename;
-    dump(paths + '\n');
+    dump(paths + "\n");
     var split = paths.split("/");
-    for(var i = 0; i < split.length; ++i) {
+    for (var i = 0; i < split.length; ++i) {
       file.append(split[i]);
     }
     fis.init(file, -1, -1, false);
 
     // handle range requests
     var partialstart = 0,
-        partialend = file.fileSize - 1;
+      partialend = file.fileSize - 1;
     if (request.hasHeader("Range")) {
       var range = request.getHeader("Range");
       var parts = range.replace(/bytes=/, "").split("-");
@@ -50,7 +57,8 @@
         partialend = file.fileSize - 1;
       }
       response.setStatusLine(request.httpVersion, 206, "Partial Content");
-      var contentRange = "bytes " + partialstart + "-" + partialend + "/" + file.fileSize;
+      var contentRange =
+        "bytes " + partialstart + "-" + partialend + "/" + file.fileSize;
       response.setHeader("Content-Range", contentRange);
     }
 
@@ -62,16 +70,16 @@
       var contentType = parseQuery(request, "type");
       if (contentType == false) {
         // This should not happen.
-        dump("No type specified without having \'nomime\' in parameters.");
+        dump("No type specified without having 'nomime' in parameters.");
         return;
       }
       response.setHeader("Content-Type", contentType, false);
     }
-    response.setHeader("Content-Length", ""+bis.available(), false);
+    response.setHeader("Content-Length", "" + bis.available(), false);
 
     var bytes = bis.readBytes(bis.available());
     response.write(bytes, bytes.length);
   } catch (e) {
-    dump ("ERROR : " + e + "\n");
+    dump("ERROR : " + e + "\n");
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/dash_detect_stream_switch.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/dash_detect_stream_switch.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/dash_detect_stream_switch.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/dash_detect_stream_switch.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -15,55 +15,64 @@
 var DEBUG = false;
 
 function parseQuery(request, key) {
-  var params = request.queryString.split('&');
+  var params = request.queryString.split("&");
   if (DEBUG) {
-    dump("DASH-SJS: request params = \"" + params + "\"\n");
+    dump('DASH-SJS: request params = "' + params + '"\n');
   }
   for (var j = 0; j < params.length; ++j) {
     var p = params[j];
-	if (p == key)
-	  return true;
-    if (p.indexOf(key + "=") === 0)
-	  return p.substring(key.length + 1);
-	if (p.indexOf("=") < 0 && key === "")
-	  return p;
+    if (p == key) {
+      return true;
+    }
+    if (p.indexOf(key + "=") === 0) {
+      return p.substring(key.length + 1);
+    }
+    if (p.indexOf("=") < 0 && key === "") {
+      return p;
+    }
   }
   return false;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   try {
     var name = parseQuery(request, "name");
-    var range = request.hasHeader("Range") ? request.getHeader("Range")
-                                           : undefined;
-    
+    var range = request.hasHeader("Range")
+      ? request.getHeader("Range")
+      : undefined;
+
     // Should not get request for 1st subsegment from 2nd stream, nor 2nd
     // subsegment from 1st stream.
-    if (name == "dash-webm-video-320x180.webm" && range == "bytes=25514-32767" ||
-        name == "dash-webm-video-428x240.webm" && range == "bytes=228-35852") 
-    {
+    if (
+      (name == "dash-webm-video-320x180.webm" &&
+        range == "bytes=25514-32767") ||
+      (name == "dash-webm-video-428x240.webm" && range == "bytes=228-35852")
+    ) {
       throw "Should not request " + name + " with byte-range " + range;
     } else {
       var rangeSplit = range.split("=");
       if (rangeSplit.length != 2) {
-        throw "DASH-SJS: ERROR: invalid number of tokens (" + rangeSplit.length +
-              ") delimited by \'=\' in \'Range\' header.";
+        throw "DASH-SJS: ERROR: invalid number of tokens (" +
+          rangeSplit.length +
+          ") delimited by '=' in 'Range' header.";
       }
       var offsets = rangeSplit[1].split("-");
       if (offsets.length != 2) {
-        throw "DASH-SJS: ERROR: invalid number of tokens (" + offsets.length +
-              ") delimited by \'-\' in \'Range\' header.";
+        throw "DASH-SJS: ERROR: invalid number of tokens (" +
+          offsets.length +
+          ") delimited by '-' in 'Range' header.";
       }
       var startOffset = parseInt(offsets[0]);
       var endOffset = parseInt(offsets[1]);
-      var file = Components.classes["@mozilla.org/file/directory_service;1"].
-                            getService(Components.interfaces.nsIProperties).
-                            get("CurWorkD", Components.interfaces.nsIFile);
-      var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
-                            createInstance(Components.interfaces.nsIFileInputStream);
-      var bis  = Components.classes["@mozilla.org/binaryinputstream;1"].
-                            createInstance(Components.interfaces.nsIBinaryInputStream);
+      var file = Components.classes["@mozilla.org/file/directory_service;1"]
+        .getService(Components.interfaces.nsIProperties)
+        .get("CurWorkD", Components.interfaces.nsIFile);
+      var fis = Components.classes[
+        "@mozilla.org/network/file-input-stream;1"
+      ].createInstance(Components.interfaces.nsIFileInputStream);
+      var bis = Components.classes[
+        "@mozilla.org/binaryinputstream;1"
+      ].createInstance(Components.interfaces.nsIBinaryInputStream);
 
       var paths = "tests/dom/media/test/" + name;
       var split = paths.split("/");
@@ -74,41 +83,58 @@
       fis.init(file, -1, -1, false);
       // Exception: start offset should be within file bounds.
       if (startOffset > file.fileSize) {
-        throw "Starting offset [" + startOffset + "] is after end of file [" +
-              file.fileSize + "].";
+        throw "Starting offset [" +
+          startOffset +
+          "] is after end of file [" +
+          file.fileSize +
+          "].";
       }
       // End offset may be too large in the MPD. Real world HTTP servers just
       // return what data they can; do the same here - reduce the end offset.
       if (endOffset >= file.fileSize) {
         if (DEBUG) {
-          dump("DASH-SJS: reducing endOffset [" + endOffset + "] to fileSize [" +
-               (file.fileSize-1) + "]\n");
+          dump(
+            "DASH-SJS: reducing endOffset [" +
+              endOffset +
+              "] to fileSize [" +
+              (file.fileSize - 1) +
+              "]\n"
+          );
         }
-        endOffset = file.fileSize-1;
+        endOffset = file.fileSize - 1;
       }
-      fis.seek(Components.interfaces.nsISeekableStream.NS_SEEK_SET, startOffset);
+      fis.seek(
+        Components.interfaces.nsISeekableStream.NS_SEEK_SET,
+        startOffset
+      );
       bis.setInputStream(fis);
-      
+
       var byteLengthToRead = endOffset + 1 - startOffset;
       var totalBytesExpected = byteLengthToRead + startOffset;
       if (DEBUG) {
-        dump("DASH-SJS: byteLengthToRead = " + byteLengthToRead +
-             " byteLengthToRead+startOffset = " + totalBytesExpected +
-             " fileSize = " + file.fileSize + "\n");
+        dump(
+          "DASH-SJS: byteLengthToRead = " +
+            byteLengthToRead +
+            " byteLengthToRead+startOffset = " +
+            totalBytesExpected +
+            " fileSize = " +
+            file.fileSize +
+            "\n"
+        );
       }
 
       var bytes = bis.readBytes(byteLengthToRead);
       response.setStatusLine(request.httpVersion, 206, "Partial Content");
-      response.setHeader("Content-Length", ""+bytes.length, false);
+      response.setHeader("Content-Length", "" + bytes.length, false);
       response.setHeader("Content-Type", "application/dash+xml", false);
-      var contentRange = "bytes " + startOffset + "-" + endOffset + "/" +
-                         file.fileSize;
+      var contentRange =
+        "bytes " + startOffset + "-" + endOffset + "/" + file.fileSize;
       response.setHeader("Content-Range", contentRange, false);
       response.write(bytes, bytes.length);
       bis.close();
     }
   } catch (e) {
-    dump ("DASH-SJS-ERROR: " + e + "\n");
+    dump("DASH-SJS-ERROR: " + e + "\n");
     response.setStatusLine(request.httpVersion, 404, "Not found");
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/dynamic_resource.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/dynamic_resource.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/dynamic_resource.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/dynamic_resource.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,21 +1,23 @@
 function parseQuery(request, key) {
-  var params = request.queryString.split('&');
+  var params = request.queryString.split("&");
   for (var j = 0; j < params.length; ++j) {
     var p = params[j];
-	if (p == key)
-	  return true;
-    if (p.indexOf(key + "=") == 0)
-	  return p.substring(key.length + 1);
-	if (p.indexOf("=") < 0 && key == "")
-	  return p;
+    if (p == key) {
+      return true;
+    }
+    if (p.indexOf(key + "=") == 0) {
+      return p.substring(key.length + 1);
+    }
+    if (p.indexOf("=") < 0 && key == "") {
+      return p;
+    }
   }
   return false;
 }
 
 // Return resource1 file content for the first request with a given key.
 // All subsequent requests return resource2. Both must be video/ogg.
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var key = parseQuery(request, "key");
   var resource1 = parseQuery(request, "res1");
   var resource2 = parseQuery(request, "res2");
@@ -23,16 +25,18 @@
   var resource = getState(key) == "2" ? resource2 : resource1;
   setState(key, "2");
 
-  var file = Components.classes["@mozilla.org/file/directory_service;1"].
-                        getService(Components.interfaces.nsIProperties).
-                        get("CurWorkD", Components.interfaces.nsIFile);
-  var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
-                        createInstance(Components.interfaces.nsIFileInputStream);
-  var bis  = Components.classes["@mozilla.org/binaryinputstream;1"].
-                        createInstance(Components.interfaces.nsIBinaryInputStream);
+  var file = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
+  var fis = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
+  var bis = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   var paths = "tests/dom/media/test/" + resource;
   var split = paths.split("/");
-  for(var i = 0; i < split.length; ++i) {
+  for (var i = 0; i < split.length; ++i) {
     file.append(split[i]);
   }
   fis.init(file, -1, -1, false);
@@ -40,8 +44,11 @@
   bis.setInputStream(fis);
   var bytes = bis.readBytes(bis.available());
   response.setStatusLine(request.httpVersion, 206, "Partial Content");
-  response.setHeader("Content-Range", "bytes 0-" + (bytes.length - 1) + "/" + bytes.length);
-  response.setHeader("Content-Length", ""+bytes.length, false);
+  response.setHeader(
+    "Content-Range",
+    "bytes 0-" + (bytes.length - 1) + "/" + bytes.length
+  );
+  response.setHeader("Content-Length", "" + bytes.length, false);
   response.setHeader("Content-Type", "video/ogg", false);
   response.write(bytes, bytes.length);
   bis.close();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/gzipped_mp4.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/gzipped_mp4.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/gzipped_mp4.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/gzipped_mp4.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,27 +1,25 @@
-function getGzippedFileBytes()
-{
-  var file;
-  getObjectState("SERVER_ROOT", function(serverRoot) {
-    file = serverRoot.getFile("tests/dom/media/test/short.mp4.gz");
-  });
-  var fileInputStream =
-    Components.classes['@mozilla.org/network/file-input-stream;1']
-              .createInstance(Components.interfaces.nsIFileInputStream);
-  var binaryInputStream =
-    Components.classes["@mozilla.org/binaryinputstream;1"]
-              .createInstance(Components.interfaces.nsIBinaryInputStream);
-  fileInputStream.init(file, -1, -1, 0);
-  binaryInputStream.setInputStream(fileInputStream);
-  return binaryInputStream.readBytes(binaryInputStream.available());
-}
-
-function handleRequest(request, response)
-{
-  var bytes = getGzippedFileBytes();
-  response.setHeader("Content-Length", String(bytes.length), false);
-  response.setHeader("Content-Type", "video/mp4", false);
-  response.setHeader("Access-Control-Allow-Origin", "*", false);
-  response.setHeader("Content-Encoding", "gzip", false);
-  response.setHeader("Cache-Control", "no-cache", false);
-  response.write(bytes, bytes.length);
-}
+function getGzippedFileBytes() {
+  var file;
+  getObjectState("SERVER_ROOT", function(serverRoot) {
+    file = serverRoot.getFile("tests/dom/media/test/short.mp4.gz");
+  });
+  var fileInputStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
+  var binaryInputStream = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
+  fileInputStream.init(file, -1, -1, 0);
+  binaryInputStream.setInputStream(fileInputStream);
+  return binaryInputStream.readBytes(binaryInputStream.available());
+}
+
+function handleRequest(request, response) {
+  var bytes = getGzippedFileBytes();
+  response.setHeader("Content-Length", String(bytes.length), false);
+  response.setHeader("Content-Type", "video/mp4", false);
+  response.setHeader("Access-Control-Allow-Origin", "*", false);
+  response.setHeader("Content-Encoding", "gzip", false);
+  response.setHeader("Cache-Control", "no-cache", false);
+  response.write(bytes, bytes.length);
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/midflight-redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/midflight-redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/midflight-redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/midflight-redirect.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,5 +1,5 @@
 function parseQuery(query, key) {
-  for (let p of query.split('&')) {
+  for (let p of query.split("&")) {
     if (p == key) {
       return true;
     }
@@ -12,21 +12,22 @@
 // Return the first few bytes in a short byte range response. When Firefox
 // requests subsequent bytes in a second range request, respond with a
 // redirect. Requests after the first redirected are serviced as expected.
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = request.queryString;
   var resource = parseQuery(query, "resource");
   var type = parseQuery(query, "type") || "application/octet-stream";
   var redirected = parseQuery(query, "redirected") || false;
   var useCors = parseQuery(query, "cors") || false;
 
-  var file = Components.classes["@mozilla.org/file/directory_service;1"].
-                        getService(Components.interfaces.nsIProperties).
-                        get("CurWorkD", Components.interfaces.nsIFile);
-  var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
-                        createInstance(Components.interfaces.nsIFileInputStream);
-  var bis  = Components.classes["@mozilla.org/binaryinputstream;1"].
-                        createInstance(Components.interfaces.nsIBinaryInputStream);
+  var file = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
+  var fis = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
+  var bis = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   var paths = "tests/dom/media/test/" + resource;
   var split = paths.split("/");
   for (var i = 0; i < split.length; ++i) {
@@ -36,13 +37,21 @@
 
   bis.setInputStream(fis);
   var bytes = bis.readBytes(bis.available());
-  let [from, to] = request.getHeader("range").split("=")[1].split("-").map(s => parseInt(s));
+  let [from, to] = request
+    .getHeader("range")
+    .split("=")[1]
+    .split("-")
+    .map(s => parseInt(s));
 
   if (!redirected && from > 0) {
-    var origin = request.host == "mochi.test" ? "example.org" : "mochi.test:8888";
+    var origin =
+      request.host == "mochi.test" ? "example.org" : "mochi.test:8888";
     response.setStatusLine(request.httpVersion, 303, "See Other");
-    let url = "http://" + origin +
-              "/tests/dom/media/test/midflight-redirect.sjs?redirected&" + query;
+    let url =
+      "http://" +
+      origin +
+      "/tests/dom/media/test/midflight-redirect.sjs?redirected&" +
+      query;
     response.setHeader("Location", url);
     response.setHeader("Content-Type", "text/html");
     return;
@@ -53,7 +62,8 @@
   }
 
   if (from == 0 && !redirected) {
-    to = parseInt(parseQuery(query, "redirectAt")) || Math.floor(bytes.length / 4);
+    to =
+      parseInt(parseQuery(query, "redirectAt")) || Math.floor(bytes.length / 4);
   }
   to = Math.min(to, bytes.length - 1);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/redirect.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,26 +1,35 @@
 function parseQuery(request, key) {
-  var params = request.queryString.split('&');
+  var params = request.queryString.split("&");
   for (var j = 0; j < params.length; ++j) {
     var p = params[j];
-	if (p == key)
-	  return true;
-    if (p.indexOf(key + "=") == 0)
-	  return p.substring(key.length + 1);
-	if (p.indexOf("=") < 0 && key == "")
-	  return p;
+    if (p == key) {
+      return true;
+    }
+    if (p.indexOf(key + "=") == 0) {
+      return p.substring(key.length + 1);
+    }
+    if (p.indexOf("=") < 0 && key == "") {
+      return p;
+    }
   }
   return false;
 }
 
 // Return file content for the first request with a given key.
 // All subsequent requests return a redirect to a different-origin resource.
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var domain = parseQuery(request, "domain");
   var file = parseQuery(request, "file");
   var allowed = parseQuery(request, "allowed");
 
   response.setStatusLine(request.httpVersion, 303, "See Other");
-  response.setHeader("Location", "http://" + domain + "/tests/dom/media/test/" + (allowed ? "allowed.sjs?" : "") + file);
+  response.setHeader(
+    "Location",
+    "http://" +
+      domain +
+      "/tests/dom/media/test/" +
+      (allowed ? "allowed.sjs?" : "") +
+      file
+  );
   response.setHeader("Content-Type", "text/html");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/referer.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/referer.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/referer.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/referer.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,45 +1,51 @@
 function parseQuery(request, key) {
-  var params = request.queryString.split('&');
+  var params = request.queryString.split("&");
   for (var j = 0; j < params.length; ++j) {
     var p = params[j];
-	if (p == key)
-	  return true;
-    if (p.indexOf(key + "=") == 0)
-	  return p.substring(key.length + 1);
-	if (p.indexOf("=") < 0 && key == "")
-	  return p;
+    if (p == key) {
+      return true;
+    }
+    if (p.indexOf(key + "=") == 0) {
+      return p.substring(key.length + 1);
+    }
+    if (p.indexOf("=") < 0 && key == "") {
+      return p;
+    }
   }
   return false;
 }
 
-function handleRequest(request, response)
-{
-  var referer = request.hasHeader("Referer") ? request.getHeader("Referer")
-                                             : undefined; 
-  if (referer == "http://mochi.test:8888/tests/dom/media/test/test_referer.html") {
+function handleRequest(request, response) {
+  var referer = request.hasHeader("Referer")
+    ? request.getHeader("Referer")
+    : undefined;
+  if (
+    referer == "http://mochi.test:8888/tests/dom/media/test/test_referer.html"
+  ) {
     var name = parseQuery(request, "name");
-	var type = parseQuery(request, "type");
-    var file = Components.classes["@mozilla.org/file/directory_service;1"].
-                          getService(Components.interfaces.nsIProperties).
-                          get("CurWorkD", Components.interfaces.nsIFile);
-    var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
-                          createInstance(Components.interfaces.nsIFileInputStream);
-    var bis  = Components.classes["@mozilla.org/binaryinputstream;1"].
-                          createInstance(Components.interfaces.nsIBinaryInputStream);
+    var type = parseQuery(request, "type");
+    var file = Components.classes["@mozilla.org/file/directory_service;1"]
+      .getService(Components.interfaces.nsIProperties)
+      .get("CurWorkD", Components.interfaces.nsIFile);
+    var fis = Components.classes[
+      "@mozilla.org/network/file-input-stream;1"
+    ].createInstance(Components.interfaces.nsIFileInputStream);
+    var bis = Components.classes[
+      "@mozilla.org/binaryinputstream;1"
+    ].createInstance(Components.interfaces.nsIBinaryInputStream);
     var paths = "tests/dom/media/test/" + name;
     var split = paths.split("/");
-    for(var i = 0; i < split.length; ++i) {
+    for (var i = 0; i < split.length; ++i) {
       file.append(split[i]);
     }
     fis.init(file, -1, -1, false);
     bis.setInputStream(fis);
     var bytes = bis.readBytes(bis.available());
-    response.setHeader("Content-Length", ""+bytes.length, false);
+    response.setHeader("Content-Length", "" + bytes.length, false);
     response.setHeader("Content-Type", type, false);
     response.write(bytes, bytes.length);
     bis.close();
-  }
-  else {
+  } else {
     response.setStatusLine(request.httpVersion, 404, "Not found");
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/seekLies.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/seekLies.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/test/seekLies.sjs	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/test/seekLies.sjs	2021-10-20 19:28:18.000000000 +0000
@@ -1,21 +1,22 @@
-function handleRequest(request, response)
-{
-  var file = Components.classes["@mozilla.org/file/directory_service;1"].
-                        getService(Components.interfaces.nsIProperties).
-                        get("CurWorkD", Components.interfaces.nsIFile);
-  var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
-                        createInstance(Components.interfaces.nsIFileInputStream);
-  var bis  = Components.classes["@mozilla.org/binaryinputstream;1"].
-                        createInstance(Components.interfaces.nsIBinaryInputStream);
+function handleRequest(request, response) {
+  var file = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
+  var fis = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
+  var bis = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   var paths = "tests/dom/media/test/seek.ogv";
   var split = paths.split("/");
-  for(var i = 0; i < split.length; ++i) {
+  for (var i = 0; i < split.length; ++i) {
     file.append(split[i]);
   }
   fis.init(file, -1, -1, false);
   bis.setInputStream(fis);
   var bytes = bis.readBytes(bis.available());
-  response.setHeader("Content-Length", ""+bytes.length, false);
+  response.setHeader("Content-Length", "" + bytes.length, false);
   response.setHeader("Content-Type", "video/ogg", false);
   response.setHeader("Accept-Ranges", "bytes", false);
   response.write(bytes, bytes.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/utils/PerformanceRecorder.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/media/utils/PerformanceRecorder.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/utils/PerformanceRecorder.cpp	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/utils/PerformanceRecorder.cpp	2021-10-20 19:28:19.000000000 +0000
@@ -55,7 +55,7 @@
 
 /* static */
 bool PerformanceRecorder::IsMeasurementEnabled() {
-  return profiler_can_accept_markers() ||
+  return profiler_thread_is_being_profiled() ||
          PerformanceRecorder::sEnableMeasurementForTesting;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webaudio/test/corsServer.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webaudio/test/corsServer.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webaudio/test/corsServer.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webaudio/test/corsServer.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,22 +1,23 @@
-function handleRequest(request, response)
-{
-  var file = Components.classes["@mozilla.org/file/directory_service;1"].
-                        getService(Components.interfaces.nsIProperties).
-                        get("CurWorkD", Components.interfaces.nsIFile);
-  var fis  = Components.classes['@mozilla.org/network/file-input-stream;1'].
-                        createInstance(Components.interfaces.nsIFileInputStream);
-  var bis  = Components.classes["@mozilla.org/binaryinputstream;1"].
-                        createInstance(Components.interfaces.nsIBinaryInputStream);
+function handleRequest(request, response) {
+  var file = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
+  var fis = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
+  var bis = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   var paths = "tests/dom/media/webaudio/test/small-shot.ogg";
   var split = paths.split("/");
-  for(var i = 0; i < split.length; ++i) {
+  for (var i = 0; i < split.length; ++i) {
     file.append(split[i]);
   }
   fis.init(file, -1, -1, false);
   bis.setInputStream(fis);
   var bytes = bis.readBytes(bis.available());
   response.setHeader("Content-Type", "video/ogg", false);
-  response.setHeader("Content-Length", ""+ bytes.length, false);
+  response.setHeader("Content-Length", "" + bytes.length, false);
   response.setHeader("Access-Control-Allow-Origin", "*", false);
   response.write(bytes, bytes.length);
   response.processAsync();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/head.js firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/head.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/head.js	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/head.js	2021-10-20 19:28:19.000000000 +0000
@@ -445,9 +445,7 @@
     ],
   };
 
-  const isAndroid = !!navigator.userAgent.includes("Android");
-
-  if (isAndroid) {
+  if (navigator.userAgent.includes("Android")) {
     defaultMochitestPrefs.set.push(
       ["media.navigator.video.default_width", 320],
       ["media.navigator.video.default_height", 240],
@@ -456,16 +454,14 @@
     );
   }
 
-  // All platforms but Linux support MediaDataEncoder and the tryserver Windows
-  // machine doesn't have HW H.264 encoder. In these cases, Fake GMP encoder is
-  // used so the pref needs to stay disabled.
-  // [TODO] re-enable after bug 1509012 is done or platform encoder available.
-  const alwaysHasHW264 =
-    !!navigator.userAgent.includes("Android") ||
-    !!navigator.userAgent.includes("Mac OS X");
+  // Platform codec prefs should be matched because fake H.264 GMP codec doesn't
+  // produce/consume real bitstreams. [TODO] remove after bug 1509012 is fixed.
+  const platformEncoderEnabled = SpecialPowers.getBoolPref(
+    "media.webrtc.platformencoder"
+  );
   defaultMochitestPrefs.set.push([
     "media.navigator.mediadatadecoder_h264_enabled",
-    alwaysHasHW264,
+    platformEncoderEnabled,
   ]);
 
   // Running as a Mochitest.
@@ -478,6 +474,19 @@
   SpecialPowers.exactGC();
 }
 
+// [TODO] remove after bug 1509012 is fixed.
+async function matchPlatformH264CodecPrefs() {
+  const hasHW264 =
+    SpecialPowers.getBoolPref("media.webrtc.platformencoder") &&
+    (navigator.userAgent.includes("Android") ||
+      navigator.userAgent.includes("Mac OS X"));
+
+  await pushPrefs(
+    ["media.webrtc.platformencoder", hasHW264],
+    ["media.navigator.mediadatadecoder_h264_enabled", hasHW264]
+  );
+}
+
 async function runTestWhenReady(testFunc) {
   setupEnvironment();
   const options = await testConfigured;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/identity/idp.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/identity/idp.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/identity/idp.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/identity/idp.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,18 +1,18 @@
 function handleRequest(request, response) {
-  var key = '/.well-known/idp-proxy/' + request.queryString;
-  dump(getState(key) + '\n');
-  if (request.method === 'GET') {
+  var key = "/.well-known/idp-proxy/" + request.queryString;
+  dump(getState(key) + "\n");
+  if (request.method === "GET") {
     if (getState(key)) {
-      response.setStatusLine(request.httpVersion, 200, 'OK');
+      response.setStatusLine(request.httpVersion, 200, "OK");
     } else {
-      response.setStatusLine(request.httpVersion, 404, 'Not Found');
+      response.setStatusLine(request.httpVersion, 404, "Not Found");
     }
-  } else if (request.method === 'PUT') {
-    setState(key, 'OK');
-    response.setStatusLine(request.httpVersion, 200, 'OK');
+  } else if (request.method === "PUT") {
+    setState(key, "OK");
+    response.setStatusLine(request.httpVersion, 200, "OK");
   } else {
-    response.setStatusLine(request.httpVersion, 406, 'Method Not Allowed');
+    response.setStatusLine(request.httpVersion, 406, "Method Not Allowed");
   }
-  response.setHeader('Content-Type', 'text/plain;charset=UTF-8');
-  response.write('OK');
+  response.setHeader("Content-Type", "text/plain;charset=UTF-8");
+  response.write("OK");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/test_peerConnection_basicH264Video.html firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/test_peerConnection_basicH264Video.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/test_peerConnection_basicH264Video.html	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/test_peerConnection_basicH264Video.html	2021-10-20 19:28:18.000000000 +0000
@@ -13,11 +13,7 @@
 
   var test;
   runNetworkTest(async function (options) {
-    const alwaysHasHW264 =
-      navigator.userAgent.includes("Android") ||
-      navigator.userAgent.includes("Mac OS X");
-    await pushPrefs(["media.webrtc.platformencoder", alwaysHasHW264]);
-
+    matchPlatformH264CodecPrefs();
     options = options || { };
     options.h264 = true;
     test = new PeerConnectionTest(options);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/test_peerConnection_maxFsConstraint.html firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/test_peerConnection_maxFsConstraint.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/test_peerConnection_maxFsConstraint.html	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/test_peerConnection_maxFsConstraint.html	2021-10-20 19:28:18.000000000 +0000
@@ -88,6 +88,7 @@
   runNetworkTest(async () => {
     await pushPrefs(['media.peerconnection.video.lock_scaling', true]);
     if (await checkForH264Support()) {
+      await matchPlatformH264CodecPrefs();
       await testScale("H264");
     }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/test_peerConnection_scaleResolution.html firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/test_peerConnection_scaleResolution.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/test_peerConnection_scaleResolution.html	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/test_peerConnection_scaleResolution.html	2021-10-20 19:28:18.000000000 +0000
@@ -78,12 +78,10 @@
   }
 
   runNetworkTest(async () => {
+    await matchPlatformH264CodecPrefs();
     await pushPrefs(['media.peerconnection.video.lock_scaling', true]);
     await testScale("VP8");
-    if (!navigator.appVersion.includes("Android")) {
-      // No support for H.264 on Android in automation, see Bug 1355786
-      await testScale("H264");
-    }
+    await testScale("H264");
   });
 </script>
 </pre>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/test_peerConnection_setParameters_scaleResolutionDownBy.html firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/test_peerConnection_setParameters_scaleResolutionDownBy.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/test_peerConnection_setParameters_scaleResolutionDownBy.html	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/test_peerConnection_setParameters_scaleResolutionDownBy.html	2021-10-20 19:28:19.000000000 +0000
@@ -39,7 +39,8 @@
                     // Android platform encoders don't support small (e.g.,
                     // 80x60) or non-even (e.g., 20x15) resolutions.
                     // [TODO] re-enable after SW fallback is implemented.
-                    ["media.webrtc.platformencoder", false]);
+                    ["media.webrtc.platformencoder", false],
+                    ["media.navigator.mediadatadecoder_h264_enabled", false]);
   }
 
   let test = new PeerConnectionTest(options);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/test_peerConnection_videoCodecs.html firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/test_peerConnection_videoCodecs.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/tests/mochitests/test_peerConnection_videoCodecs.html	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/tests/mochitests/test_peerConnection_videoCodecs.html	2021-10-20 19:28:19.000000000 +0000
@@ -77,26 +77,26 @@
     for (let codec of codecs) {
       info(`Testing video for codec ${codec.name} offset ${codec.offset}`);
       try {
-        // Force fake GMP codec for H.264 mode 0 because not all platforms
-        // support slice size control. Re-enable this after SW encoder fallback
-        // support (bug 1726617) and returning valid bitstream from fake GMP
-        // encoder (bug 1509012).
-        let disablePlatformCodec = codec.name == "H264" && codec.offset;
         let enc = SpecialPowers.getBoolPref('media.webrtc.platformencoder');
         let dec = SpecialPowers.getBoolPref('media.navigator.mediadatadecoder_h264_enabled');
-        if (disablePlatformCodec) {
-          await pushPrefs(
-            ['media.webrtc.platformencoder', false],
-            ['media.navigator.mediadatadecoder_h264_enabled', false],
-          );
+        if (codec.name == "H264") {
+          await matchPlatformH264CodecPrefs();
+          if (codec.offset == 1) {
+            // Force fake GMP codec for H.264 mode 0 because not all platforms
+            // support slice size control. Re-enable it after
+            // a. SW encoder fallback support (bug 1726617), and
+            // b. returning valid bitstream from fake GMP encoder (bug 1509012).
+            await pushPrefs(
+              ['media.webrtc.platformencoder', false],
+              ['media.navigator.mediadatadecoder_h264_enabled', false],
+            );
+          }
         }
         await testVideoCodec(options, codec);
-        if (disablePlatformCodec) {
-          await pushPrefs(
-            ['media.webrtc.platformencoder', enc],
-            ['media.navigator.mediadatadecoder_h264_enabled', dec],
-          );
-        }
+        await pushPrefs(
+          ['media.webrtc.platformencoder', enc],
+          ['media.navigator.mediadatadecoder_h264_enabled', dec],
+        );
       } catch(e) {
         ok(false, `Error in test for codec ${codec.name}: ${e}\n${e.stack}`);
       }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/WebrtcGlobal.h firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/WebrtcGlobal.h
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webrtc/WebrtcGlobal.h	2021-10-17 14:42:35.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webrtc/WebrtcGlobal.h	2021-10-20 19:28:18.000000000 +0000
@@ -39,20 +39,6 @@
 
 namespace IPC {
 
-template <typename T>
-struct ParamTraits<mozilla::dom::Sequence<T>> {
-  typedef mozilla::dom::Sequence<T> paramType;
-
-  static void Write(Message* aMsg, const paramType& aParam) {
-    WriteParam(aMsg, static_cast<const FallibleTArray<T>&>(aParam));
-  }
-
-  static bool Read(const Message* aMsg, PickleIterator* aIter,
-                   paramType* aResult) {
-    return ReadParam(aMsg, aIter, static_cast<FallibleTArray<T>*>(aResult));
-  }
-};
-
 template <>
 struct ParamTraits<mozilla::dom::RTCStatsType>
     : public ContiguousEnumSerializer<mozilla::dom::RTCStatsType,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webspeech/recognition/test/http_requesthandler.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webspeech/recognition/test/http_requesthandler.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/media/webspeech/recognition/test/http_requesthandler.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/media/webspeech/recognition/test/http_requesthandler.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,77 +1,85 @@
-const CC = Components.Constructor;
-
-// Context structure - we need to set this up properly to pass to setObjectState
-const ctx = {
-  QueryInterface: function(iid) {
-    if (iid.equals(Components.interfaces.nsISupports))
-      return this;
-    throw Components.results.NS_ERROR_NO_INTERFACE;
-  }
-};
-
-function setRequest(request) {
-  setObjectState(key, request);
-}
-function getRequest() {
-  let request;
-  getObjectState(v => { request = v });
-  return request;
-}
-
-function handleRequest(request, response) {
-  response.processAsync();
-  if (request.queryString == "save") {
-    // Get the context structure and finish the old request
-    getObjectState("context", function(obj) {
-      savedCtx = obj.wrappedJSObject;
-      request = savedCtx.request;
-
-      response.setHeader("Content-Type", "application/octet-stream", false);
-      response.setHeader("Access-Control-Allow-Origin", "*", false);
-      response.setHeader("Cache-Control", "no-cache", false);
-      response.setStatusLine(request.httpVersion, 200, "OK");
-
-      const input = request.bodyInputStream;
-      const output = response.bodyOutputStream;
-      let bodyAvail;
-      while ((bodyAvail = input.available()) > 0) {
-        output.writeFrom(input, bodyAvail);
-      }
-      response.finish();
-    });
-    return;
-  } else if (request.queryString == "malformedresult=1" || request.queryString == "emptyresult=1") {
-    jsonOK = request.queryString == "malformedresult=1" ? '{"status":"ok","dat' : '{"status":"ok","data":[]}'
-    response.setHeader("Content-Length", String(jsonOK.length), false);
-    response.setHeader("Content-Type", "application/json", false);
-    response.setHeader("Access-Control-Allow-Origin", "*", false);
-    response.setHeader("Cache-Control", "no-cache", false);
-    response.setStatusLine(request.httpVersion, 200, "OK");
-    response.write(jsonOK, jsonOK.length);
-    response.finish();
-  } else if (request.queryString == "hangup=1") {
-    response.finish();
-  } else if (request.queryString == "return400=1") {
-    jsonOK = "{'message':'Bad header:accept-language-stt'}";
-    response.setHeader("Content-Length", String(jsonOK.length), false);
-    response.setHeader("Content-Type", "application/json", false);
-    response.setHeader("Access-Control-Allow-Origin", "*", false);
-    response.setHeader("Cache-Control", "no-cache", false);
-    response.setStatusLine(request.httpVersion, 400, "Bad Request");
-    response.write(jsonOK, jsonOK.length);
-    response.finish();
-  }
-  else {
-    ctx.wrappedJSObject = ctx;
-    ctx.request = request;
-    setObjectState("context", ctx);
-    jsonOK = '{"status":"ok","data":[{"confidence":0.9085610,"text":"hello"}]}';
-    response.setHeader("Content-Length", String(jsonOK.length), false);
-    response.setHeader("Content-Type", "application/json", false);
-    response.setHeader("Access-Control-Allow-Origin", "*", false);
-    response.setHeader("Cache-Control", "no-cache", false);
-    response.setStatusLine(request.httpVersion, 200, "OK");
-    response.write(jsonOK, jsonOK.length);
-    response.finish();
-  }
-}
+const CC = Components.Constructor;
+
+// Context structure - we need to set this up properly to pass to setObjectState
+const ctx = {
+  QueryInterface(iid) {
+    if (iid.equals(Components.interfaces.nsISupports)) {
+      return this;
+    }
+    throw Components.Exception("", Components.results.NS_ERROR_NO_INTERFACE);
+  },
+};
+
+function setRequest(request) {
+  setObjectState(key, request);
+}
+function getRequest() {
+  let request;
+  getObjectState(v => {
+    request = v;
+  });
+  return request;
+}
+
+function handleRequest(request, response) {
+  response.processAsync();
+  if (request.queryString == "save") {
+    // Get the context structure and finish the old request
+    getObjectState("context", function(obj) {
+      savedCtx = obj.wrappedJSObject;
+      request = savedCtx.request;
+
+      response.setHeader("Content-Type", "application/octet-stream", false);
+      response.setHeader("Access-Control-Allow-Origin", "*", false);
+      response.setHeader("Cache-Control", "no-cache", false);
+      response.setStatusLine(request.httpVersion, 200, "OK");
+
+      const input = request.bodyInputStream;
+      const output = response.bodyOutputStream;
+      let bodyAvail;
+      while ((bodyAvail = input.available()) > 0) {
+        output.writeFrom(input, bodyAvail);
+      }
+      response.finish();
+    });
+    return;
+  } else if (
+    request.queryString == "malformedresult=1" ||
+    request.queryString == "emptyresult=1"
+  ) {
+    jsonOK =
+      request.queryString == "malformedresult=1"
+        ? '{"status":"ok","dat'
+        : '{"status":"ok","data":[]}';
+    response.setHeader("Content-Length", String(jsonOK.length), false);
+    response.setHeader("Content-Type", "application/json", false);
+    response.setHeader("Access-Control-Allow-Origin", "*", false);
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setStatusLine(request.httpVersion, 200, "OK");
+    response.write(jsonOK, jsonOK.length);
+    response.finish();
+  } else if (request.queryString == "hangup=1") {
+    response.finish();
+  } else if (request.queryString == "return400=1") {
+    jsonOK = "{'message':'Bad header:accept-language-stt'}";
+    response.setHeader("Content-Length", String(jsonOK.length), false);
+    response.setHeader("Content-Type", "application/json", false);
+    response.setHeader("Access-Control-Allow-Origin", "*", false);
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setStatusLine(request.httpVersion, 400, "Bad Request");
+    response.write(jsonOK, jsonOK.length);
+    response.finish();
+  } else {
+    ctx.wrappedJSObject = ctx;
+    ctx.request = request;
+    setObjectState("context", ctx);
+    jsonOK = '{"status":"ok","data":[{"confidence":0.9085610,"text":"hello"}]}';
+    response.setHeader("Content-Length", String(jsonOK.length), false);
+    response.setHeader("Content-Type", "application/json", false);
+    response.setHeader("Access-Control-Allow-Origin", "*", false);
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setStatusLine(request.httpVersion, 200, "OK");
+    response.write(jsonOK, jsonOK.length);
+    response.finish();
+  }
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/payments/PaymentRequest.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/payments/PaymentRequest.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/payments/PaymentRequest.cpp	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/payments/PaymentRequest.cpp	2021-10-20 19:28:19.000000000 +0000
@@ -95,7 +95,7 @@
   }
   nsAutoCString locale;
   LocaleService::GetInstance()->GetAppLocaleAsBCP47(locale);
-  mozilla::intl::Locale loc = mozilla::intl::Locale(locale);
+  mozilla::intl::MozLocale loc = mozilla::intl::MozLocale(locale);
   if (!(loc.GetLanguage() == "en" && loc.GetRegion() == "US")) {
     return false;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/performance/Performance.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/performance/Performance.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/performance/Performance.cpp	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/performance/Performance.cpp	2021-10-20 19:28:19.000000000 +0000
@@ -330,7 +330,7 @@
       new PerformanceMark(GetParentObject(), aName, Now());
   InsertUserEntry(performanceMark);
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     Maybe<uint64_t> innerWindowId;
     if (GetOwner()) {
       innerWindowId = Some(GetOwner()->WindowID());
@@ -408,7 +408,7 @@
       new PerformanceMeasure(GetParentObject(), aName, startTime, endTime);
   InsertUserEntry(performanceMeasure);
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     TimeStamp startTimeStamp =
         CreationTimeStamp() + TimeDuration::FromMilliseconds(startTime);
     TimeStamp endTimeStamp =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/performance/tests/serverTiming.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/performance/tests/serverTiming.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/performance/tests/serverTiming.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/performance/tests/serverTiming.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,21 +1,30 @@
-
-var responseServerTiming = [{metric:"metric1", duration:"123.4", description:"description1"},
-                           {metric:"metric2", duration:"456.78", description:"description2"}];
-var trailerServerTiming = [{metric:"metric3", duration:"789.11", description:"description3"},
-                           {metric:"metric4", duration:"1112.13", description:"description4"}];
+var responseServerTiming = [
+  { metric: "metric1", duration: "123.4", description: "description1" },
+  { metric: "metric2", duration: "456.78", description: "description2" },
+];
+var trailerServerTiming = [
+  { metric: "metric3", duration: "789.11", description: "description3" },
+  { metric: "metric4", duration: "1112.13", description: "description4" },
+];
 
 function createServerTimingHeader(headerData) {
   var header = "";
   for (var i = 0; i < headerData.length; i++) {
-    header += "Server-Timing:" + headerData[i].metric + ";" +
-              "dur=" + headerData[i].duration + ";" +
-              "desc=" + headerData[i].description + "\r\n";
+    header +=
+      "Server-Timing:" +
+      headerData[i].metric +
+      ";" +
+      "dur=" +
+      headerData[i].duration +
+      ";" +
+      "desc=" +
+      headerData[i].description +
+      "\r\n";
   }
   return header;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var body = "c\r\ndata reached\r\n3\r\nhej\r\n0\r\n";
 
   response.seizePower();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/performance/tests/test_worker_performance_entries.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/performance/tests/test_worker_performance_entries.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/performance/tests/test_worker_performance_entries.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/performance/tests/test_worker_performance_entries.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/html");
 
   if (request.queryString == "redirect") {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/plugins/test/mochitest/mixed_case_mime.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/plugins/test/mochitest/mixed_case_mime.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/plugins/test/mochitest/mixed_case_mime.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/plugins/test/mochitest/mixed_case_mime.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
   response.setHeader("Content-Type", "image/pNG", false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/reporting/tests/delivering.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/reporting/tests/delivering.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/reporting/tests/delivering.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/reporting/tests/delivering.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,7 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 
@@ -22,12 +24,15 @@
 
     let body = {
       max_age: 1,
-      endpoints: [{
-        url: "https://example.org/tests/dom/reporting/tests/delivering.sjs" +
-               (extraParams.length ? "?" + extraParams.join("&") : ""),
-        priority: 1,
-        weight: 1,
-      }]
+      endpoints: [
+        {
+          url:
+            "https://example.org/tests/dom/reporting/tests/delivering.sjs" +
+            (extraParams.length ? "?" + extraParams.join("&") : ""),
+          priority: 1,
+          weight: 1,
+        },
+      ],
     };
 
     aResponse.setStatusLine(aRequest.httpVersion, 200, "OK");
@@ -68,26 +73,30 @@
     var bytes = [];
     while ((avail = body.available()) > 0) {
       Array.prototype.push.apply(bytes, body.readByteArray(avail));
-     }
+    }
 
-     let reports = getState("report");
-     if (!reports) {
-       reports = [];
-     } else {
-       reports = JSON.parse(reports);
-     }
+    let reports = getState("report");
+    if (!reports) {
+      reports = [];
+    } else {
+      reports = JSON.parse(reports);
+    }
 
-     const incoming_reports = JSON.parse(String.fromCharCode.apply(null, bytes));
-     for (let report of incoming_reports) {
+    const incoming_reports = JSON.parse(String.fromCharCode.apply(null, bytes));
+    for (let report of incoming_reports) {
       let data = {
         contentType: aRequest.getHeader("content-type"),
         origin: aRequest.getHeader("origin"),
         body: report,
-        url: aRequest.scheme + "://" + aRequest.host + aRequest.path +
-               (aRequest.queryString ? "&" + aRequest.queryString : ""),
-      }
+        url:
+          aRequest.scheme +
+          "://" +
+          aRequest.host +
+          aRequest.path +
+          (aRequest.queryString ? "&" + aRequest.queryString : ""),
+      };
       reports.push(data);
-     }
+    }
 
     setState("report", JSON.stringify(reports));
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/script/ScriptLoader.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/script/ScriptLoader.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/script/ScriptLoader.cpp	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/script/ScriptLoader.cpp	2021-10-20 19:28:19.000000000 +0000
@@ -687,8 +687,10 @@
     if (module) {
       JS::RootedValue privateValue(cx);
       JS::RootedScript moduleScript(cx, JS::GetModuleScript(module));
-      if (!JS::UpdateDebugMetadata(cx, moduleScript, options, privateValue,
-                                   nullptr, introductionScript, nullptr)) {
+      JS::InstantiateOptions instantiateOptions(options);
+      if (!JS::UpdateDebugMetadata(cx, moduleScript, instantiateOptions,
+                                   privateValue, nullptr, introductionScript,
+                                   nullptr)) {
         return NS_ERROR_OUT_OF_MEMORY;
       }
     }
@@ -2935,10 +2937,10 @@
   }
 
   if (aRequest->IsModuleRequest()) {
-    aOptions->hideScriptFromDebugger = true;
+    aOptions->setHideScriptFromDebugger(true);
   }
 
-  aOptions->setdeferDebugMetadata(true);
+  aOptions->setDeferDebugMetadata(true);
 
   aOptions->borrowBuffer = true;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/nsHTTPSOnlyUtils.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/security/nsHTTPSOnlyUtils.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/nsHTTPSOnlyUtils.cpp	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/nsHTTPSOnlyUtils.cpp	2021-10-20 19:28:19.000000000 +0000
@@ -113,6 +113,20 @@
     return;
   }
 
+  // HTTPS-First only applies to standard ports but HTTPS-Only brute forces
+  // all http connections to be https and overrules HTTPS-First. In case
+  // HTTPS-First is enabled, but HTTPS-Only is not enabled, we might return
+  // early if attempting to send a background request to a non standard port.
+  if (IsHttpsFirstModeEnabled(isPrivateWin) &&
+      !IsHttpsOnlyModeEnabled(isPrivateWin)) {
+    int32_t port = 0;
+    nsresult rv = channelURI->GetPort(&port);
+    int defaultPortforScheme = NS_GetDefaultPort("http");
+    if (NS_SUCCEEDED(rv) && port != defaultPortforScheme && port != -1) {
+      return;
+    }
+  }
+
   // Check for general exceptions
   if (OnionException(channelURI) || LoopbackOrLocalException(channelURI)) {
     return;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/cors/bug1456721.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/cors/bug1456721.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/cors/bug1456721.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/cors/bug1456721.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,4 +1,3 @@
-
 function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   let queryStr = request.queryString;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/cors/file_CrossSiteXHR_cache_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/cors/file_CrossSiteXHR_cache_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/cors/file_CrossSiteXHR_cache_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/cors/file_CrossSiteXHR_cache_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,16 +1,17 @@
 Cu.import("resource://gre/modules/Services.jsm");
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
   if ("setState" in query) {
-    setState("test/dom/security/test_CrossSiteXHR_cache:secData",
-             query.setState);
+    setState(
+      "test/dom/security/test_CrossSiteXHR_cache:secData",
+      query.setState
+    );
 
     response.setHeader("Cache-Control", "no-cache", false);
     response.setHeader("Content-Type", "text/plain", false);
@@ -23,24 +24,33 @@
 
   // Send response
 
-  secData =
-    JSON.parse(getState("test/dom/security/test_CrossSiteXHR_cache:secData"));
+  secData = JSON.parse(
+    getState("test/dom/security/test_CrossSiteXHR_cache:secData")
+  );
 
-  if (secData.allowOrigin)
+  if (secData.allowOrigin) {
     response.setHeader("Access-Control-Allow-Origin", secData.allowOrigin);
+  }
 
-  if (secData.withCred)
+  if (secData.withCred) {
     response.setHeader("Access-Control-Allow-Credentials", "true");
+  }
 
   if (isPreflight) {
-    if (secData.allowHeaders)
+    if (secData.allowHeaders) {
       response.setHeader("Access-Control-Allow-Headers", secData.allowHeaders);
+    }
 
-    if (secData.allowMethods)
+    if (secData.allowMethods) {
       response.setHeader("Access-Control-Allow-Methods", secData.allowMethods);
+    }
 
-    if (secData.cacheTime)
-      response.setHeader("Access-Control-Max-Age", secData.cacheTime.toString());
+    if (secData.cacheTime) {
+      response.setHeader(
+        "Access-Control-Max-Age",
+        secData.cacheTime.toString()
+      );
+    }
 
     return;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/cors/file_CrossSiteXHR_inner_data.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/cors/file_CrossSiteXHR_inner_data.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/cors/file_CrossSiteXHR_inner_data.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/cors/file_CrossSiteXHR_inner_data.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,4 +1,5 @@
-var data = '<!DOCTYPE HTML>\n\
+var data =
+  '<!DOCTYPE HTML>\n\
 <html>\n\
 <head>\n\
 <script>\n\
@@ -84,7 +85,7 @@
   e.source.postMessage(JSON.stringify(res), "*");\n\
 }\n\
 function trimString(stringValue) {\n\
-  return stringValue.replace("/^\s+|\s+$/g","");\n\
+  return stringValue.replace("/^s+|s+$/g","");\n\
 };\n\
 \n\
 </script>\n\
@@ -92,10 +93,9 @@
 <body>\n\
 Inner page\n\
 </body>\n\
-</html>'
+</html>';
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(null, 302, "Follow me");
   response.setHeader("Location", "data:text/html," + escape(data));
   response.setHeader("Content-Type", "text/plain");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/cors/file_CrossSiteXHR_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/cors/file_CrossSiteXHR_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/cors/file_CrossSiteXHR_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/cors/file_CrossSiteXHR_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,15 +1,16 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 Cu.import("resource://gre/modules/Services.jsm");
 Services.prefs.setBoolPref("security.allow_eval_with_system_principal", true);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
@@ -17,11 +18,13 @@
 
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
   var bodyBytes = [];
-  while ((bodyAvail = bodyStream.available()) > 0)
+  while ((bodyAvail = bodyStream.available()) > 0) {
     Array.prototype.push.apply(bodyBytes, bodyStream.readByteArray(bodyAvail));
+  }
 
   var body = decodeURIComponent(
-    escape(String.fromCharCode.apply(null, bodyBytes)));
+    escape(String.fromCharCode.apply(null, bodyBytes))
+  );
 
   if (query.hop) {
     query.hop = parseInt(query.hop, 10);
@@ -44,74 +47,112 @@
   // Check that request was correct
 
   if (!isPreflight && query.body && body != query.body) {
-    sendHttp500(response, "Wrong body. Expected " + query.body + " got " +
-      body);
+    sendHttp500(
+      response,
+      "Wrong body. Expected " + query.body + " got " + body
+    );
     return;
   }
 
   if (!isPreflight && "headers" in query) {
     headers = JSON.parse(query.headers);
-    for(headerName in headers) {
-      // Content-Type is changed if there was a body 
-      if (!(headerName == "Content-Type" && body) &&
-          (!request.hasHeader(headerName) ||
-          request.getHeader(headerName) != headers[headerName])) {
-        var actual = request.hasHeader(headerName) ? request.getHeader(headerName)
-                                                   : "<missing header>";
-        sendHttp500(response,
-          "Header " + headerName + " had wrong value. Expected " +
-          headers[headerName] + " got " + actual);
+    for (headerName in headers) {
+      // Content-Type is changed if there was a body
+      if (
+        !(headerName == "Content-Type" && body) &&
+        (!request.hasHeader(headerName) ||
+          request.getHeader(headerName) != headers[headerName])
+      ) {
+        var actual = request.hasHeader(headerName)
+          ? request.getHeader(headerName)
+          : "<missing header>";
+        sendHttp500(
+          response,
+          "Header " +
+            headerName +
+            " had wrong value. Expected " +
+            headers[headerName] +
+            " got " +
+            actual
+        );
         return;
       }
     }
   }
 
-  if (isPreflight && "requestHeaders" in query &&
-      request.getHeader("Access-Control-Request-Headers") != query.requestHeaders) {
-    sendHttp500(response,
+  if (
+    isPreflight &&
+    "requestHeaders" in query &&
+    request.getHeader("Access-Control-Request-Headers") != query.requestHeaders
+  ) {
+    sendHttp500(
+      response,
       "Access-Control-Request-Headers had wrong value. Expected " +
-      query.requestHeaders + " got " +
-      request.getHeader("Access-Control-Request-Headers"));
+        query.requestHeaders +
+        " got " +
+        request.getHeader("Access-Control-Request-Headers")
+    );
     return;
   }
 
-  if (isPreflight && "requestMethod" in query &&
-      request.getHeader("Access-Control-Request-Method") != query.requestMethod) {
-    sendHttp500(response,
+  if (
+    isPreflight &&
+    "requestMethod" in query &&
+    request.getHeader("Access-Control-Request-Method") != query.requestMethod
+  ) {
+    sendHttp500(
+      response,
       "Access-Control-Request-Method had wrong value. Expected " +
-      query.requestMethod + " got " +
-      request.getHeader("Access-Control-Request-Method"));
+        query.requestMethod +
+        " got " +
+        request.getHeader("Access-Control-Request-Method")
+    );
     return;
   }
 
   if ("origin" in query && request.getHeader("Origin") != query.origin) {
-    sendHttp500(response,
-      "Origin had wrong value. Expected " + query.origin + " got " +
-      request.getHeader("Origin"));
+    sendHttp500(
+      response,
+      "Origin had wrong value. Expected " +
+        query.origin +
+        " got " +
+        request.getHeader("Origin")
+    );
     return;
   }
 
   if ("cookie" in query) {
     cookies = {};
-    request.getHeader("Cookie").split(/ *; */).forEach(function (val) {
-      var [name, value] = val.split('=');
-      cookies[name] = unescape(value);
-    });
-    
-    query.cookie.split(",").forEach(function (val) {
-      var [name, value] = val.split('=');
+    request
+      .getHeader("Cookie")
+      .split(/ *; */)
+      .forEach(function(val) {
+        var [name, value] = val.split("=");
+        cookies[name] = unescape(value);
+      });
+
+    query.cookie.split(",").forEach(function(val) {
+      var [name, value] = val.split("=");
       if (cookies[name] != value) {
-        sendHttp500(response,
-          "Cookie " + name  + " had wrong value. Expected " + value +
-          " got " + cookies[name]);
+        sendHttp500(
+          response,
+          "Cookie " +
+            name +
+            " had wrong value. Expected " +
+            value +
+            " got " +
+            cookies[name]
+        );
         return;
       }
     });
   }
 
   if (query.noCookie && request.hasHeader("Cookie")) {
-    sendHttp500(response,
-      "Got cookies when didn't expect to: " + request.getHeader("Cookie"));
+    sendHttp500(
+      response,
+      "Got cookies when didn't expect to: " + request.getHeader("Cookie")
+    );
     return;
   }
 
@@ -123,24 +164,28 @@
   if (isPreflight && query.preflightStatus) {
     response.setStatusLine(null, query.preflightStatus, "preflight status");
   }
-  
-  if (query.allowOrigin && (!isPreflight || !query.noAllowPreflight))
+
+  if (query.allowOrigin && (!isPreflight || !query.noAllowPreflight)) {
     response.setHeader("Access-Control-Allow-Origin", query.allowOrigin);
+  }
 
-  if (query.allowCred)
+  if (query.allowCred) {
     response.setHeader("Access-Control-Allow-Credentials", "true");
+  }
 
-  if (query.setCookie)
+  if (query.setCookie) {
     response.setHeader("Set-Cookie", query.setCookie + "; path=/");
+  }
 
   if (isPreflight) {
-    if (query.allowHeaders)
+    if (query.allowHeaders) {
       response.setHeader("Access-Control-Allow-Headers", query.allowHeaders);
+    }
 
-    if (query.allowMethods)
+    if (query.allowMethods) {
       response.setHeader("Access-Control-Allow-Methods", query.allowMethods);
-  }
-  else {
+    }
+  } else {
     if (query.responseHeaders) {
       let responseHeaders = JSON.parse(query.responseHeaders);
       for (let responseHeader in responseHeaders) {
@@ -148,14 +193,19 @@
       }
     }
 
-    if (query.exposeHeaders)
+    if (query.exposeHeaders) {
       response.setHeader("Access-Control-Expose-Headers", query.exposeHeaders);
+    }
   }
 
   if (!isPreflight && query.hop && query.hop < hops.length) {
-    newURL = hops[query.hop].server +
-             "/tests/dom/security/test/cors/file_CrossSiteXHR_server.sjs?" +
-             "hop=" + (query.hop + 1) + "&hops=" + escape(query.hops);
+    newURL =
+      hops[query.hop].server +
+      "/tests/dom/security/test/cors/file_CrossSiteXHR_server.sjs?" +
+      "hop=" +
+      (query.hop + 1) +
+      "&hops=" +
+      escape(query.hops);
     if ("headers" in query) {
       newURL += "&headers=" + escape(query.headers);
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_base_uri_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_base_uri_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_base_uri_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_base_uri_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -10,7 +10,7 @@
   <head>
   <title>Bug 1045897 - Test CSP base-uri directive</title>`;
 
-const REGULAR_POST_BASE =`
+const REGULAR_POST_BASE = `
   </head>
   <body onload='window.parent.postMessage({result: document.baseURI}, "*");'>
   <!-- just making use of the 'base' tag for this test -->
@@ -39,10 +39,8 @@
   // Send HTML to test allowed/blocked behaviors
   response.setHeader("Content-Type", "text/html", false);
   response.write(PRE_BASE);
-  var base1 =
-    "<base id=\"base1\" href=\"" + query.get("base1") + "\">";
-  var base2 =
-    "<base id=\"base2\" href=\"" + query.get("base2") + "\">";
+  var base1 = '<base id="base1" href="' + query.get("base1") + '">';
+  var base2 = '<base id="base2" href="' + query.get("base2") + '">';
   response.write(base1 + base2);
 
   if (query.get("action") === "enforce-csp") {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_block_all_mcb.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_block_all_mcb.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_block_all_mcb.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_block_all_mcb.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,26 +3,26 @@
 
 const HEAD =
   "<!DOCTYPE HTML>" +
-  "<html><head><meta charset=\"utf-8\">" +
+  '<html><head><meta charset="utf-8">' +
   "<title>Bug 1122236 - CSP: Implement block-all-mixed-content</title>" +
   "</head>";
 
 const CSP_ALLOW =
-  "<meta http-equiv=\"Content-Security-Policy\" content=\"img-src *\">";
+  '<meta http-equiv="Content-Security-Policy" content="img-src *">';
 
 const CSP_BLOCK =
-  "<meta http-equiv=\"Content-Security-Policy\" content=\"block-all-mixed-content\">";
+  '<meta http-equiv="Content-Security-Policy" content="block-all-mixed-content">';
 
 const BODY =
   "<body>" +
-  "<img id=\"testimage\" src=\"http://mochi.test:8888/tests/image/test/mochitest/blue.png\"></img>" +
-  "<script type=\"application/javascript\">" +
-  "  var myImg = document.getElementById(\"testimage\");" +
+  '<img id="testimage" src="http://mochi.test:8888/tests/image/test/mochitest/blue.png"></img>' +
+  '<script type="application/javascript">' +
+  '  var myImg = document.getElementById("testimage");' +
   "  myImg.onload = function(e) {" +
-  "    window.parent.postMessage({result: \"img-loaded\"}, \"*\");" +
+  '    window.parent.postMessage({result: "img-loaded"}, "*");' +
   "  };" +
   "  myImg.onerror = function(e) {" +
-  "    window.parent.postMessage({result: \"img-blocked\"}, \"*\");" +
+  '    window.parent.postMessage({result: "img-blocked"}, "*");' +
   "  };" +
   "</script>" +
   "</body>" +
@@ -32,24 +32,23 @@
 // actual network load rather than loading the image from the cache.
 const BODY_CSPRO =
   "<body>" +
-  "<img id=\"testimage\" src=\"http://mochi.test:8888/tests/image/test/mochitest/blue.png?nocache\"></img>" +
-  "<script type=\"application/javascript\">" +
-  "  var myImg = document.getElementById(\"testimage\");" +
+  '<img id="testimage" src="http://mochi.test:8888/tests/image/test/mochitest/blue.png?nocache"></img>' +
+  '<script type="application/javascript">' +
+  '  var myImg = document.getElementById("testimage");' +
   "  myImg.onload = function(e) {" +
-  "    window.parent.postMessage({result: \"img-loaded\"}, \"*\");" +
+  '    window.parent.postMessage({result: "img-loaded"}, "*");' +
   "  };" +
   "  myImg.onerror = function(e) {" +
-  "    window.parent.postMessage({result: \"img-blocked\"}, \"*\");" +
+  '    window.parent.postMessage({result: "img-blocked"}, "*");' +
   "  };" +
   "</script>" +
   "</body>" +
   "</html>";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
- 
+
   var queryString = request.queryString;
 
   if (queryString === "csp-block") {
@@ -66,11 +65,14 @@
   }
   if (queryString === "cspro-block") {
     // CSP RO is not supported in meta tag, let's use the header
-    response.setHeader("Content-Security-Policy-Report-Only", "block-all-mixed-content", false);
+    response.setHeader(
+      "Content-Security-Policy-Report-Only",
+      "block-all-mixed-content",
+      false
+    );
     response.write(HEAD + BODY_CSPRO);
     return;
   }
   // we should never get here but just in case return something unexpected
   response.write("do'h");
-
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_blocked_uri_in_violation_event_after_redirects.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_blocked_uri_in_violation_event_after_redirects.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_blocked_uri_in_violation_event_after_redirects.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_blocked_uri_in_violation_event_after_redirects.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -5,8 +5,7 @@
 let REDIRECT_302_URI =
   "http://test1.example.com/tests/dom/security/test/csp/file_blocked_uri_in_violation_event_after_redirects.sjs?test1b#ref1b";
 
-let JS_REDIRECT =
-  `<html>
+let JS_REDIRECT = `<html>
    <body>
    <script>
      var url= "http://test2.example.com/tests/dom/security/test/csp/file_blocked_uri_in_violation_event_after_redirects.sjs?test2b#ref2b";
@@ -15,8 +14,7 @@
    </body>
    </html>`;
 
-let LINK_CLICK_NAVIGATION =
-  `<html>
+let LINK_CLICK_NAVIGATION = `<html>
    <body>
    <a id="navlink" href="http://test3.example.com/tests/dom/security/test/csp/file_blocked_uri_in_violation_event_after_redirects.sjs?test3b#ref3b">click me</a>
    <script>
@@ -25,8 +23,7 @@
    </body>
    </html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
 
   let query = request.queryString;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_blocked_uri_redirect_frame_src_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_blocked_uri_redirect_frame_src_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_blocked_uri_redirect_frame_src_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_blocked_uri_redirect_frame_src_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,12 +1,12 @@
 // Redirect server specifically for the needs of Bug 1687342
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
 
   let query = request.queryString;
   if (query === "doredirect") {
-    var newLocation = "http://test1.example.com/tests/dom/security/test/csp/file_blocked_uri_redirect_frame_src_server.sjs?query#ref2";
+    var newLocation =
+      "http://test1.example.com/tests/dom/security/test/csp/file_blocked_uri_redirect_frame_src_server.sjs?query#ref2";
     response.setStatusLine("1.1", 302, "Found");
     response.setHeader("Location", newLocation, false);
     return;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_bug802872.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_bug802872.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_bug802872.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_bug802872.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/event-stream", false);
   response.write("data: eventsource response from server!");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_bug836922_npolicies_ro_violation.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_bug836922_npolicies_ro_violation.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_bug836922_npolicies_ro_violation.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_bug836922_npolicies_ro_violation.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,21 +1,22 @@
 // SJS file that receives violation reports and then responds with nothing.
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                              "nsIBinaryInputStream",
-                              "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 const STATE_KEY = "bug836922_ro_violations";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
-  if ('results' in query) {
+  if ("results" in query) {
     // if asked for the received data, send it.
     response.setHeader("Content-Type", "text/javascript", false);
     if (getState(STATE_KEY)) {
@@ -24,7 +25,7 @@
       // no state has been recorded.
       response.write(JSON.stringify({}));
     }
-  } else if ('reset' in query) {
+  } else if ("reset" in query) {
     //clear state
     setState(STATE_KEY, JSON.stringify(null));
   } else {
@@ -34,8 +35,9 @@
     var bodystream = new BinaryInputStream(request.bodyInputStream);
     var avail;
     var bytes = [];
-    while ((avail = bodystream.available()) > 0)
+    while ((avail = bodystream.available()) > 0) {
       Array.prototype.push.apply(bytes, bodystream.readByteArray(avail));
+    }
 
     var data = String.fromCharCode.apply(null, bytes);
 
@@ -45,9 +47,7 @@
 
     // store the violation in the persistent state
     var s = JSON.parse(getState(STATE_KEY) || "{}");
-    s[testid] ? s[testid]++ : s[testid] = 1;
+    s[testid] ? s[testid]++ : (s[testid] = 1);
     setState(STATE_KEY, JSON.stringify(s));
   }
 }
-
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_bug836922_npolicies_violation.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_bug836922_npolicies_violation.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_bug836922_npolicies_violation.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_bug836922_npolicies_violation.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,22 +1,22 @@
 // SJS file that receives violation reports and then responds with nothing.
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                              "nsIBinaryInputStream",
-                              "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 const STATE = "bug836922_violations";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
-
-  if ('results' in query) {
+  if ("results" in query) {
     // if asked for the received data, send it.
     response.setHeader("Content-Type", "text/javascript", false);
     if (getState(STATE)) {
@@ -25,7 +25,7 @@
       // no state has been recorded.
       response.write(JSON.stringify({}));
     }
-  } else if ('reset' in query) {
+  } else if ("reset" in query) {
     //clear state
     setState(STATE, JSON.stringify(null));
   } else {
@@ -35,8 +35,9 @@
     var bodystream = new BinaryInputStream(request.bodyInputStream);
     var avail;
     var bytes = [];
-    while ((avail = bodystream.available()) > 0)
+    while ((avail = bodystream.available()) > 0) {
       Array.prototype.push.apply(bytes, bodystream.readByteArray(avail));
+    }
 
     var data = String.fromCharCode.apply(null, bytes);
 
@@ -46,14 +47,18 @@
 
     // store the violation in the persistent state
     var s = getState(STATE);
-    if (!s) s = "{}";
+    if (!s) {
+      s = "{}";
+    }
     s = JSON.parse(s);
-    if (!s) s = {};
+    if (!s) {
+      s = {};
+    }
 
-    if (!s[testid]) s[testid] = 0;
+    if (!s[testid]) {
+      s[testid] = 0;
+    }
     s[testid]++;
     setState(STATE, JSON.stringify(s));
   }
 }
-
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_bug888172.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_bug888172.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_bug888172.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_bug888172.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -6,27 +6,28 @@
   // Load the HTML to return in the response from file.
   // Since it's relative to the cwd of the test runner, we start there and
   // append to get to the actual path of the file.
-  var testHTMLFile =
-    Components.classes["@mozilla.org/file/directory_service;1"].
-    getService(Components.interfaces.nsIProperties).
-    get("CurWorkD", Components.interfaces.nsIFile);
+  var testHTMLFile = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
   var dirs = path.split("/");
   for (var i = 0; i < dirs.length; i++) {
     testHTMLFile.append(dirs[i]);
   }
-  var testHTMLFileStream =
-    Components.classes["@mozilla.org/network/file-input-stream;1"].
-    createInstance(Components.interfaces.nsIFileInputStream);
+  var testHTMLFileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   testHTMLFileStream.init(testHTMLFile, -1, 0, 0);
-  var testHTML = NetUtil.readInputStreamToString(testHTMLFileStream, testHTMLFileStream.available());
+  var testHTML = NetUtil.readInputStreamToString(
+    testHTMLFileStream,
+    testHTMLFileStream.available()
+  );
   return testHTML;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
@@ -34,10 +35,13 @@
   response.setHeader("Cache-Control", "no-cache", false);
 
   // Deliver the CSP policy encoded in the URI
-  if (query['csp'])
-    response.setHeader("Content-Security-Policy", unescape(query['csp']), false);
+  if (query.csp) {
+    response.setHeader("Content-Security-Policy", unescape(query.csp), false);
+  }
 
   // Send HTML to test allowed/blocked behaviors
   response.setHeader("Content-Type", "text/html", false);
-  response.write(loadHTMLFromFile("tests/dom/security/test/csp/file_bug888172.html"));
+  response.write(
+    loadHTMLFromFile("tests/dom/security/test/csp/file_bug888172.html")
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_bug910139.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_bug910139.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_bug910139.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_bug910139.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,26 +3,28 @@
 Components.utils.import("resource://gre/modules/NetUtil.jsm");
 
 function loadResponseFromFile(path) {
-  var testHTMLFile =
-    Components.classes["@mozilla.org/file/directory_service;1"].
-    getService(Components.interfaces.nsIProperties).
-    get("CurWorkD", Components.interfaces.nsIFile);
+  var testHTMLFile = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
   var dirs = path.split("/");
   for (var i = 0; i < dirs.length; i++) {
     testHTMLFile.append(dirs[i]);
   }
-  var testHTMLFileStream =
-    Components.classes["@mozilla.org/network/file-input-stream;1"].
-    createInstance(Components.interfaces.nsIFileInputStream);
+  var testHTMLFileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   testHTMLFileStream.init(testHTMLFile, -1, 0, 0);
-  var testHTML = NetUtil.readInputStreamToString(testHTMLFileStream, testHTMLFileStream.available());
+  var testHTML = NetUtil.readInputStreamToString(
+    testHTMLFileStream,
+    testHTMLFileStream.available()
+  );
   return testHTML;
 }
 
 var policies = [
-  "default-src 'self'; script-src 'self'",       // CSP for checkAllowed
-  "default-src 'self'; script-src *.example.com" // CSP for checkBlocked
-]
+  "default-src 'self'; script-src 'self'", // CSP for checkAllowed
+  "default-src 'self'; script-src *.example.com", // CSP for checkBlocked
+];
 
 function getPolicy() {
   var index;
@@ -30,8 +32,7 @@
   if (!getState("counter")) {
     index = 0;
     setState("counter", index.toString());
-  }
-  else {
+  } else {
     index = parseInt(getState("counter"));
     ++index;
     setState("counter", index.toString());
@@ -39,8 +40,7 @@
   return policies[index];
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
@@ -48,5 +48,7 @@
   response.setHeader("Content-Security-Policy", getPolicy(), false);
 
   // return the requested XML file.
-  response.write(loadResponseFromFile("tests/dom/security/test/csp/file_bug910139.xml"));
+  response.write(
+    loadResponseFromFile("tests/dom/security/test/csp/file_bug910139.xml")
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_CSP.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_CSP.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_CSP.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_CSP.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,26 +1,24 @@
 // SJS file for CSP mochitests
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
   var isPreflight = request.method == "OPTIONS";
 
-
   //avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
   if ("type" in query) {
-    response.setHeader("Content-Type", unescape(query['type']), false);
+    response.setHeader("Content-Type", unescape(query.type), false);
   } else {
     response.setHeader("Content-Type", "text/html", false);
   }
 
   if ("content" in query) {
-    response.write(unescape(query['content']));
+    response.write(unescape(query.content));
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_dual_header_testserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_dual_header_testserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_dual_header_testserver.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_dual_header_testserver.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -6,8 +6,7 @@
 const TIGHT_POLICY = "default-src 'self'";
 const LOOSE_POLICY = "default-src 'self' 'unsafe-inline'";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
@@ -17,9 +16,8 @@
   if (request.queryString == "tight") {
     // script execution will be *blocked*
     csp = TIGHT_POLICY + ", " + LOOSE_POLICY;
-  }
-  else {
-        // script execution will be *allowed*
+  } else {
+    // script execution will be *allowed*
     csp = LOOSE_POLICY + ", " + LOOSE_POLICY;
   }
   response.setHeader("Content-Security-Policy", csp, false);
@@ -29,18 +27,19 @@
 
   // generate an html file that contains a div container which is updated
   // in case the inline script is *not* blocked by CSP.
-  var html = "<!DOCTYPE HTML>" +
-             "<html>" +
-             "<head>" +
-             "<title>Testpage for Bug 1036399</title>" +
-             "</head>" +
-             "<body>" +
-             "<div id='testdiv'>blocked</div>" +
-             "<script type='text/javascript'>" +
-             "document.getElementById('testdiv').innerHTML = 'allowed';" +
-             "</script>" +
-             "</body>" +
-             "</html>";
+  var html =
+    "<!DOCTYPE HTML>" +
+    "<html>" +
+    "<head>" +
+    "<title>Testpage for Bug 1036399</title>" +
+    "</head>" +
+    "<body>" +
+    "<div id='testdiv'>blocked</div>" +
+    "<script type='text/javascript'>" +
+    "document.getElementById('testdiv').innerHTML = 'allowed';" +
+    "</script>" +
+    "</body>" +
+    "</html>";
 
   response.write(html);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_fontloader.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_fontloader.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_fontloader.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_fontloader.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,14 +3,14 @@
 
 const PRE_HEAD =
   "<!DOCTYPE HTML>" +
-  "<html><head><meta charset=\"utf-8\">" +
+  '<html><head><meta charset="utf-8">' +
   "<title>Bug 1195172 - CSP should block font from cache</title>";
 
 const CSP_BLOCK =
-  "<meta http-equiv=\"Content-Security-Policy\" content=\"font-src 'none'\">";
+  '<meta http-equiv="Content-Security-Policy" content="font-src \'none\'">';
 
 const CSP_ALLOW =
-  "<meta http-equiv=\"Content-Security-Policy\" content=\"font-src *\">";
+  '<meta http-equiv="Content-Security-Policy" content="font-src *">';
 
 const CSS =
   "<style>" +
@@ -30,11 +30,10 @@
   "</body>" +
   "</html>";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
- 
+
   var queryString = request.queryString;
 
   if (queryString == "baseline") {
@@ -42,15 +41,15 @@
     return;
   }
   if (queryString == "no-csp") {
-  	response.write(PRE_HEAD + CSS + POST_HEAD_AND_BODY);
-  	return;
+    response.write(PRE_HEAD + CSS + POST_HEAD_AND_BODY);
+    return;
   }
   if (queryString == "csp-block") {
-  	response.write(PRE_HEAD + CSP_BLOCK + CSS + POST_HEAD_AND_BODY);
+    response.write(PRE_HEAD + CSP_BLOCK + CSS + POST_HEAD_AND_BODY);
     return;
   }
   if (queryString == "csp-allow") {
-  	response.write(PRE_HEAD + CSP_ALLOW + CSS + POST_HEAD_AND_BODY);
+    response.write(PRE_HEAD + CSP_ALLOW + CSS + POST_HEAD_AND_BODY);
     return;
   }
   // we should never get here, but just in case return something unexpected
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_form_action_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_form_action_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_form_action_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_form_action_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -15,8 +15,7 @@
   </body>
   </html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_frameancestors.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_frameancestors.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_frameancestors.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_frameancestors.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,54 +1,69 @@
 // SJS file for CSP frame ancestor mochitests
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
   var isPreflight = request.method == "OPTIONS";
 
-
   //avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
   // grab the desired policy from the query, and then serve a page
-  if (query['csp'])
-    response.setHeader("Content-Security-Policy",
-                        unescape(query['csp']),
-                        false);
-  if (query['scriptedreport']) {
+  if (query.csp) {
+    response.setHeader("Content-Security-Policy", unescape(query.csp), false);
+  }
+  if (query.scriptedreport) {
     // spit back a script that records that the page loaded
     response.setHeader("Content-Type", "text/javascript", false);
-    if (query['double'])
-      response.write('window.parent.parent.parent.postMessage({call: "frameLoaded", testname: "' + query['scriptedreport'] + '", uri: "window.location.toString()"}, "*");');
-    else
-      response.write('window.parent.parent.postMessage({call: "frameLoaded", testname: "' + query['scriptedreport'] + '", uri: "window.location.toString()"}, "*");');
-  } else if (query['internalframe']) {
+    if (query.double) {
+      response.write(
+        'window.parent.parent.parent.postMessage({call: "frameLoaded", testname: "' +
+          query.scriptedreport +
+          '", uri: "window.location.toString()"}, "*");'
+      );
+    } else {
+      response.write(
+        'window.parent.parent.postMessage({call: "frameLoaded", testname: "' +
+          query.scriptedreport +
+          '", uri: "window.location.toString()"}, "*");'
+      );
+    }
+  } else if (query.internalframe) {
     // spit back an internal iframe (one that might be blocked)
     response.setHeader("Content-Type", "text/html", false);
-    response.write('<html><head>');
-    if (query['double'])
-      response.write('<script src="file_frameancestors.sjs?double=1&scriptedreport=' + query['testid'] + '"></script>');
-    else
-      response.write('<script src="file_frameancestors.sjs?scriptedreport=' + query['testid'] + '"></script>');
-    response.write('</head><body>');
-    response.write(unescape(query['internalframe']));
-    response.write('</body></html>');
-  } else if (query['externalframe']) {
+    response.write("<html><head>");
+    if (query.double) {
+      response.write(
+        '<script src="file_frameancestors.sjs?double=1&scriptedreport=' +
+          query.testid +
+          '"></script>'
+      );
+    } else {
+      response.write(
+        '<script src="file_frameancestors.sjs?scriptedreport=' +
+          query.testid +
+          '"></script>'
+      );
+    }
+    response.write("</head><body>");
+    response.write(unescape(query.internalframe));
+    response.write("</body></html>");
+  } else if (query.externalframe) {
     // spit back an internal iframe (one that won't be blocked, and probably
     // has no CSP)
     response.setHeader("Content-Type", "text/html", false);
-    response.write('<html><head>');
-    response.write('</head><body>');
-    response.write(unescape(query['externalframe']));
-    response.write('</body></html>');
+    response.write("<html><head>");
+    response.write("</head><body>");
+    response.write(unescape(query.externalframe));
+    response.write("</body></html>");
   } else {
     // default case: error.
     response.setHeader("Content-Type", "text/html", false);
-    response.write('<html><body>');
+    response.write("<html><body>");
     response.write("ERROR: not sure what to serve.");
-    response.write('</body></html>');
+    response.write("</body></html>");
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_iframe_srcdoc.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_iframe_srcdoc.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_iframe_srcdoc.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_iframe_srcdoc.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -9,12 +9,15 @@
     parent.parent.postMessage({result: &quot;allowed&quot;}, &quot;*&quot;);
   </script>`;
 
-const SIMPLE_IFRAME_SRCDOC = `
+const SIMPLE_IFRAME_SRCDOC =
+  `
   <!DOCTYPE html>
   <html>
   <head><meta charset="utf-8"></head>
   <body>
-    <iframe sandbox="allow-scripts" srcdoc="` + SCRIPT + `"></iframe>
+    <iframe sandbox="allow-scripts" srcdoc="` +
+  SCRIPT +
+  `"></iframe>
   </body>
   </html>`;
 
@@ -24,28 +27,33 @@
     </script>'>
   </iframe>`;
 
-const NESTED_IFRAME_SRCDOC = `
+const NESTED_IFRAME_SRCDOC =
+  `
   <!DOCTYPE html>
   <html>
   <head><meta charset="utf-8"></head>
   <body>
-    <iframe sandbox="allow-scripts" srcdoc="` + INNER_SRCDOC_IFRAME + `"></iframe>
+    <iframe sandbox="allow-scripts" srcdoc="` +
+  INNER_SRCDOC_IFRAME +
+  `"></iframe>
   </body>
   </html>`;
 
-
 const INNER_DATAURI_IFRAME = `
   <iframe sandbox='allow-scripts' src='data:text/html,<script>
       parent.parent.parent.postMessage({result: &quot;allowed&quot;}, &quot;*&quot;);
     </script>'>
   </iframe>`;
 
-const NESTED_IFRAME_SRCDOC_DATAURI = `
+const NESTED_IFRAME_SRCDOC_DATAURI =
+  `
   <!DOCTYPE html>
   <html>
   <head><meta charset="utf-8"></head>
   <body>
-    <iframe sandbox="allow-scripts" srcdoc="` + INNER_DATAURI_IFRAME + `"></iframe>
+    <iframe sandbox="allow-scripts" srcdoc="` +
+  INNER_DATAURI_IFRAME +
+  `"></iframe>
   </body>
   </html>`;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_ignore_unsafe_inline_multiple_policies_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_ignore_unsafe_inline_multiple_policies_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_ignore_unsafe_inline_multiple_policies_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_ignore_unsafe_inline_multiple_policies_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -8,34 +8,34 @@
   // Load the HTML to return in the response from file.
   // Since it's relative to the cwd of the test runner, we start there and
   // append to get to the actual path of the file.
-  var testHTMLFile =
-    Components.classes["@mozilla.org/file/directory_service;1"].
-    getService(Components.interfaces.nsIProperties).
-    get("CurWorkD", Components.interfaces.nsIFile);
+  var testHTMLFile = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
   var dirs = path.split("/");
   for (var i = 0; i < dirs.length; i++) {
     testHTMLFile.append(dirs[i]);
   }
-  var testHTMLFileStream =
-    Components.classes["@mozilla.org/network/file-input-stream;1"].
-    createInstance(Components.interfaces.nsIFileInputStream);
+  var testHTMLFileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   testHTMLFileStream.init(testHTMLFile, -1, 0, 0);
-  var testHTML = NetUtil.readInputStreamToString(testHTMLFileStream, testHTMLFileStream.available());
+  var testHTML = NetUtil.readInputStreamToString(
+    testHTMLFileStream,
+    testHTMLFileStream.available()
+  );
   return testHTML;
 }
 
-
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
-  var csp1 = (query['csp1']) ? unescape(query['csp1']) : "";
-  var csp2 = (query['csp2']) ? unescape(query['csp2']) : "";
-  var file = unescape(query['file']);
+  var csp1 = query.csp1 ? unescape(query.csp1) : "";
+  var csp2 = query.csp2 ? unescape(query.csp2) : "";
+  var file = unescape(query.file);
 
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_meta_header_dual.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_meta_header_dual.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_meta_header_dual.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_meta_header_dual.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -25,17 +25,16 @@
   "</html>";
 
 const META_CSP_BLOCK_IMG =
-  "<meta http-equiv=\"Content-Security-Policy\" content=\"img-src 'none'\">";
+  '<meta http-equiv="Content-Security-Policy" content="img-src \'none\'">';
 
 const META_CSP_ALLOW_IMG =
-  "<meta http-equiv=\"Content-Security-Policy\" content=\"img-src http://mochi.test:8888;\">";
+  '<meta http-equiv="Content-Security-Policy" content="img-src http://mochi.test:8888;">';
 
 const HEADER_CSP_BLOCK_IMG = "img-src 'none';";
 
 const HEADER_CSP_ALLOW_IMG = "img-src http://mochi.test:8888";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/html", false);
@@ -82,13 +81,17 @@
 
   if (queryString === "test7") {
     /* load image where meta1 allows but meta2 blocks */
-    response.write(HTML_HEAD + META_CSP_ALLOW_IMG + META_CSP_BLOCK_IMG + HTML_BODY);
+    response.write(
+      HTML_HEAD + META_CSP_ALLOW_IMG + META_CSP_BLOCK_IMG + HTML_BODY
+    );
     return;
   }
 
   if (queryString === "test8") {
     /* load image where meta1 allows and meta2 allows */
-    response.write(HTML_HEAD + META_CSP_ALLOW_IMG + META_CSP_ALLOW_IMG + HTML_BODY);
+    response.write(
+      HTML_HEAD + META_CSP_ALLOW_IMG + META_CSP_ALLOW_IMG + HTML_BODY
+    );
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_multipart_testserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_multipart_testserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_multipart_testserver.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_multipart_testserver.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -10,7 +10,8 @@
 // small red image
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
 var RESPONSE = `
   <script>
@@ -68,15 +69,18 @@
   </body>
 `;
 
-function setGlobalState(data, key)
-{
-  x = { data: data, QueryInterface: function(iid) { return this } };
+function setGlobalState(data, key) {
+  x = {
+    data,
+    QueryInterface(iid) {
+      return this;
+    },
+  };
   x.wrappedJSObject = x;
   setObjectState(key, x);
 }
 
-function getGlobalState(key)
-{
+function getGlobalState(key) {
   var data;
   getObjectState(key, function(x) {
     data = x && x.wrappedJSObject.data;
@@ -84,14 +88,17 @@
   return data;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
   if (request.queryString == "doc") {
     response.setHeader("Content-Security-Policy", CSP, false);
-    response.setHeader("Content-Type", "multipart/x-mixed-replace; boundary=" + BOUNDARY, false);
+    response.setHeader(
+      "Content-Type",
+      "multipart/x-mixed-replace; boundary=" + BOUNDARY,
+      false
+    );
     response.write(BOUNDARY + "\r\n");
     response.write(RESPONSE);
     response.write(BOUNDARY + "\r\n");
@@ -100,11 +107,14 @@
 
   if (request.queryString == "partcspdoc") {
     response.setHeader("Content-Security-Policy", rootCSP, false);
-    response.setHeader("Content-Type",
-                       "multipart/x-mixed-replace; boundary=" + BOUNDARY, false);
+    response.setHeader(
+      "Content-Type",
+      "multipart/x-mixed-replace; boundary=" + BOUNDARY,
+      false
+    );
     response.setStatusLine(request.httpVersion, 200, "OK");
     response.processAsync();
-    response.write("--"+BOUNDARY+"\r\n");
+    response.write("--" + BOUNDARY + "\r\n");
     sendNextPart(response, 1);
     return;
   }
@@ -132,7 +142,7 @@
 }
 
 function sendClose(response) {
-  response.write("--"+BOUNDARY+"--\r\n");
+  response.write("--" + BOUNDARY + "--\r\n");
   response.finish();
 }
 
@@ -146,5 +156,5 @@
     response.write("Content-Security-Policy:" + part2CSP + "\r\n");
     response.write(RESPONSE2);
   }
-  response.write("--"+BOUNDARY+"\r\n");
+  response.write("--" + BOUNDARY + "\r\n");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_navigate_to.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_navigate_to.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_navigate_to.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_navigate_to.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -38,12 +38,21 @@
 
   // We need meta to set multiple CSP headers.
   if (query.get("csp")) {
-    response.write("<meta http-equiv=\"Content-Security-Policy\" content=\""+query.get("csp")+"\">");
+    response.write(
+      '<meta http-equiv="Content-Security-Policy" content="' +
+        query.get("csp") +
+        '">'
+    );
   }
   if (query.get("csp2")) {
-    response.write("<meta http-equiv=\"Content-Security-Policy\" content=\""+query.get("csp2")+"\">");
+    response.write(
+      '<meta http-equiv="Content-Security-Policy" content="' +
+        query.get("csp2") +
+        '">'
+    );
   }
 
-  response.write(TEST_NAVIGATION_AFTER_META + query.get("target") + TEST_NAVIGATION_FOOT);
-
+  response.write(
+    TEST_NAVIGATION_AFTER_META + query.get("target") + TEST_NAVIGATION_FOOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_nonce_redirector.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_nonce_redirector.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_nonce_redirector.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_nonce_redirector.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -9,8 +9,11 @@
 
   if (queryStr === "redirect") {
     response.setStatusLine("1.1", 302, "Found");
-    response.setHeader("Location",
-      "https://" + URL_PATH + "file_nonce_redirector.sjs?load", false);
+    response.setHeader(
+      "Location",
+      "https://" + URL_PATH + "file_nonce_redirector.sjs?load",
+      false
+    );
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_nonce_snapshot.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_nonce_snapshot.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_nonce_snapshot.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_nonce_snapshot.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,7 +1,6 @@
 "use strict";
 
-const TEST_FRAME =
-  `<!DOCTYPE HTML>
+const TEST_FRAME = `<!DOCTYPE HTML>
    <html>
    <body>
    <script id='myScript' nonce='123456789' type='application/javascript'></script>
@@ -17,15 +16,18 @@
 
 const SCRIPT = "window.parent.postMessage('script-loaded', '*');";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
- 
+
   let queryString = request.queryString;
 
   if (queryString === "load-frame") {
-    response.setHeader("Content-Security-Policy", "script-src 'nonce-123456789'", false);
+    response.setHeader(
+      "Content-Security-Policy",
+      "script-src 'nonce-123456789'",
+      false
+    );
     response.setHeader("Content-Type", "text/html", false);
     response.write(TEST_FRAME);
     return;
@@ -33,7 +35,11 @@
 
   if (queryString === "redir-script") {
     response.setStatusLine("1.1", 302, "Found");
-    response.setHeader("Location", "file_nonce_snapshot.sjs?load-script", false);
+    response.setHeader(
+      "Location",
+      "file_nonce_snapshot.sjs?load-script",
+      false
+    );
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_path_matching_redirect_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_path_matching_redirect_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_path_matching_redirect_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_path_matching_redirect_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -2,10 +2,9 @@
 // for path-level host-source matching
 // see https://bugzilla.mozilla.org/show_bug.cgi?id=808292
 
-function handleRequest(request, response)
-{
-
-  var newLocation = "http://test1.example.com/tests/dom/security/test/csp/file_path_matching.js";
+function handleRequest(request, response) {
+  var newLocation =
+    "http://test1.example.com/tests/dom/security/test/csp/file_path_matching.js";
 
   response.setStatusLine("1.1", 302, "Found");
   response.setHeader("Cache-Control", "no-cache", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_punycode_host_src.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_punycode_host_src.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_punycode_host_src.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_punycode_host_src.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,7 +3,7 @@
 
 const HTML_PART1 =
   "<!DOCTYPE HTML>" +
-  "<html><head><meta charset=\"utf-8\">" +
+  '<html><head><meta charset="utf-8">' +
   "<title>Bug 1224225 - CSP source matching should work for punycoded domain names</title>" +
   "</head>" +
   "<body>" +
@@ -14,14 +14,14 @@
 // bytes, so "ä" literally would write a literal \xE4 byte, not the desired
 // two-byte UTF-8 sequence.
 const TESTCASE1 = "http://sub2.\xC3\xA4lt.example.org/";
-const TESTCASE2 = "http://sub2.xn--lt-uia.example.org/"
+const TESTCASE2 = "http://sub2.xn--lt-uia.example.org/";
 
-const HTML_PART2 = "tests/dom/security/test/csp/file_punycode_host_src.js'></script>" +
+const HTML_PART2 =
+  "tests/dom/security/test/csp/file_punycode_host_src.js'></script>" +
   "</body>" +
   "</html>";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/html", false);
@@ -29,20 +29,18 @@
   Components.utils.importGlobalProperties(["URLSearchParams"]);
   const query = new URLSearchParams(request.queryString);
 
-
   if (query.get("csp")) {
     response.setHeader("Content-Security-Policy", query.get("csp"), false);
   }
   if (query.get("action") == "script-unicode-csp-punycode") {
     response.write(HTML_PART1 + TESTCASE1 + HTML_PART2);
-    return
+    return;
   }
   if (query.get("action") == "script-punycode-csp-punycode") {
     response.write(HTML_PART1 + TESTCASE2 + HTML_PART2);
-    return
+    return;
   }
 
-
   // we should never get here, but just in case
   // return something unexpected
   response.write("do'h");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_redirect_content.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_redirect_content.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_redirect_content.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_redirect_content.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -23,14 +23,17 @@
     return;
   }
 
-  var csp = "default-src \'self\';report-uri http://mochi.test:8888/tests/dom/security/test/csp/file_redirect_report.sjs?" + redirect;
+  var csp =
+    "default-src 'self';report-uri http://mochi.test:8888/tests/dom/security/test/csp/file_redirect_report.sjs?" +
+    redirect;
 
   response.setHeader("Content-Security-Policy", csp, false);
 
   // the actual file content.
   // this image load will (intentionally) fail due to the CSP policy of default-src: 'self'
   // specified by the CSP string above.
-  var content = "<!DOCTYPE HTML><html><body><img src = \"http://some.other.domain.example.com\"></body></html>";
+  var content =
+    '<!DOCTYPE HTML><html><body><img src = "http://some.other.domain.example.com"></body></html>';
 
   response.write(content);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_redirects_page.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_redirects_page.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_redirects_page.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_redirects_page.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,10 +1,9 @@
 // SJS file for CSP redirect mochitests
 // This file serves pages which can optionally specify a Content Security Policy
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
@@ -14,70 +13,101 @@
   var resource = "/tests/dom/security/test/csp/file_redirects_resource.sjs";
 
   // CSP header value
-  response.setHeader("Content-Security-Policy",
-      "default-src 'self' blob: ; style-src 'self' 'unsafe-inline'", false);
+  response.setHeader(
+    "Content-Security-Policy",
+    "default-src 'self' blob: ; style-src 'self' 'unsafe-inline'",
+    false
+  );
 
   // downloadable font that redirects to another site
-  if (query["testid"] == "font-src") {
-    var resp = '<style type="text/css"> @font-face { font-family:' +
-               '"Redirecting Font"; src: url("' + resource +
-               '?res=font&redir=other&id=font-src-redir")} #test{font-family:' +
-               '"Redirecting Font"}</style></head><body>' +
-               '<div id="test">test</div></body>';
+  if (query.testid == "font-src") {
+    var resp =
+      '<style type="text/css"> @font-face { font-family:' +
+      '"Redirecting Font"; src: url("' +
+      resource +
+      '?res=font&redir=other&id=font-src-redir")} #test{font-family:' +
+      '"Redirecting Font"}</style></head><body>' +
+      '<div id="test">test</div></body>';
     response.write(resp);
     return;
   }
 
   // iframe that redirects to another site
-  if (query["testid"] == "frame-src") {
-    response.write('<iframe src="'+resource+'?res=iframe&redir=other&id=frame-src-redir"></iframe>');
+  if (query.testid == "frame-src") {
+    response.write(
+      '<iframe src="' +
+        resource +
+        '?res=iframe&redir=other&id=frame-src-redir"></iframe>'
+    );
     return;
   }
 
   // image that redirects to another site
-  if (query["testid"] == "img-src") {
-    response.write('<img src="'+resource+'?res=image&redir=other&id=img-src-redir" />');
+  if (query.testid == "img-src") {
+    response.write(
+      '<img src="' + resource + '?res=image&redir=other&id=img-src-redir" />'
+    );
     return;
   }
 
   // video content that redirects to another site
-  if (query["testid"] == "media-src") {
-    response.write('<video src="'+resource+'?res=media&redir=other&id=media-src-redir"></video>');
+  if (query.testid == "media-src") {
+    response.write(
+      '<video src="' +
+        resource +
+        '?res=media&redir=other&id=media-src-redir"></video>'
+    );
     return;
   }
 
   // object content that redirects to another site
-  if (query["testid"] == "object-src") {
-    response.write('<object type="text/html" data="'+resource+'?res=object&redir=other&id=object-src-redir"></object>');
+  if (query.testid == "object-src") {
+    response.write(
+      '<object type="text/html" data="' +
+        resource +
+        '?res=object&redir=other&id=object-src-redir"></object>'
+    );
     return;
   }
 
   // external script that redirects to another site
-  if (query["testid"] == "script-src") {
-    response.write('<script src="'+resource+'?res=script&redir=other&id=script-src-redir"></script>');
+  if (query.testid == "script-src") {
+    response.write(
+      '<script src="' +
+        resource +
+        '?res=script&redir=other&id=script-src-redir"></script>'
+    );
     return;
   }
 
   // external stylesheet that redirects to another site
-  if (query["testid"] == "style-src") {
-    response.write('<link rel="stylesheet" type="text/css" href="'+resource+'?res=style&redir=other&id=style-src-redir"></link>');
+  if (query.testid == "style-src") {
+    response.write(
+      '<link rel="stylesheet" type="text/css" href="' +
+        resource +
+        '?res=style&redir=other&id=style-src-redir"></link>'
+    );
     return;
   }
 
   // script that XHR's to a resource that redirects to another site
-  if (query["testid"] == "xhr-src") {
-    response.write('<script src="'+resource+'?res=xhr"></script>');
+  if (query.testid == "xhr-src") {
+    response.write('<script src="' + resource + '?res=xhr"></script>');
     return;
   }
 
   // for bug949706
-  if (query["testid"] == "img-src-from-css") {
+  if (query.testid == "img-src-from-css") {
     // loads a stylesheet, which in turn loads an image that redirects.
-    response.write('<link rel="stylesheet" type="text/css" href="'+resource+'?res=cssLoader&id=img-src-redir-from-css">');
+    response.write(
+      '<link rel="stylesheet" type="text/css" href="' +
+        resource +
+        '?res=cssLoader&id=img-src-redir-from-css">'
+    );
     return;
   }
 
-  if (query["testid"] == "from-worker") {
+  if (query.testid == "from-worker") {
     // loads a script; launches a worker; that worker uses importscript; which then gets redirected
     // So it's:
     // <script src="res=loadWorkerThatMakesRequests">
@@ -85,11 +115,15 @@
     //         .. calls importScript("res=script")
     //         .. calls xhr("res=xhr-resp")
     //         .. calls fetch("res=xhr-resp")
-    response.write('<script src="'+resource+'?res=loadWorkerThatMakesRequests&id=from-worker"></script>');
+    response.write(
+      '<script src="' +
+        resource +
+        '?res=loadWorkerThatMakesRequests&id=from-worker"></script>'
+    );
     return;
   }
 
-  if (query["testid"] == "from-blob-worker") {
+  if (query.testid == "from-blob-worker") {
     // loads a script; launches a worker; that worker uses importscript; which then gets redirected
     // So it's:
     // <script src="res=loadBlobWorkerThatMakesRequests">
@@ -97,7 +131,11 @@
     //         .. calls importScript("res=script")
     //         .. calls xhr("res=xhr-resp")
     //         .. calls fetch("res=xhr-resp")
-    response.write('<script src="'+resource+'?res=loadBlobWorkerThatMakesRequests&id=from-blob-worker"></script>');
+    response.write(
+      '<script src="' +
+        resource +
+        '?res=loadBlobWorkerThatMakesRequests&id=from-blob-worker"></script>'
+    );
     return;
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_redirects_resource.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_redirects_resource.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_redirects_resource.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_redirects_resource.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,11 +1,10 @@
 // SJS file to serve resources for CSP redirect tests
 // This file mimics serving resources, e.g. fonts, images, etc., which a CSP
 // can include. The resource may redirect to a different resource, if specified.
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
@@ -16,16 +15,17 @@
   response.setHeader("Cache-Control", "no-cache", false);
 
   // redirect to a resource on this site
-  if (query["redir"] == "same") {
-    var loc = thisSite+resource+"?res="+query["res"]+"&testid="+query["id"];
+  if (query.redir == "same") {
+    var loc = thisSite + resource + "?res=" + query.res + "&testid=" + query.id;
     response.setStatusLine("1.1", 302, "Found");
     response.setHeader("Location", loc, false);
     return;
   }
 
   // redirect to a resource on a different site
-  else if (query["redir"] == "other") {
-    var loc = otherSite+resource+"?res="+query["res"]+"&testid="+query["id"];
+  else if (query.redir == "other") {
+    var loc =
+      otherSite + resource + "?res=" + query.res + "&testid=" + query.id;
     response.setStatusLine("1.1", 302, "Found");
     response.setHeader("Location", loc, false);
     return;
@@ -36,7 +36,7 @@
   // the request for the content was sent or not.
 
   // downloadable font
-  if (query["res"] == "font") {
+  if (query.res == "font") {
     response.setHeader("Access-Control-Allow-Origin", "*", false);
     response.setHeader("Content-Type", "text/plain", false);
     response.write("font data...");
@@ -44,50 +44,50 @@
   }
 
   // iframe with arbitrary content
-  if (query["res"] == "iframe") {
+  if (query.res == "iframe") {
     response.setHeader("Content-Type", "text/html", false);
     response.write("iframe content...");
     return;
   }
 
   // image
-  if (query["res"] == "image") {
+  if (query.res == "image") {
     response.setHeader("Content-Type", "image/gif", false);
     response.write("image data...");
     return;
   }
 
   // media content, e.g. Ogg video
-  if (query["res"] == "media") {
+  if (query.res == "media") {
     response.setHeader("Content-Type", "video/ogg", false);
     response.write("video data...");
     return;
   }
 
   // plugin content, e.g. <object>
-  if (query["res"] == "object") {
+  if (query.res == "object") {
     response.setHeader("Content-Type", "text/html", false);
     response.write("object data...");
     return;
   }
 
   // script
-  if (query["res"] == "script") {
+  if (query.res == "script") {
     response.setHeader("Content-Type", "application/javascript", false);
     response.write("some script...");
     return;
   }
 
   // external stylesheet
-  if (query["res"] == "style") {
+  if (query.res == "style") {
     response.setHeader("Content-Type", "text/css", false);
     response.write("css data...");
     return;
   }
 
   // internal stylesheet that loads an image from an external site
-  if (query["res"] == "cssLoader") {
-    let bgURL = thisSite + resource + '?redir=other&res=image&id=' + query["id"];
+  if (query.res == "cssLoader") {
+    let bgURL = thisSite + resource + "?redir=other&res=image&id=" + query.id;
     response.setHeader("Content-Type", "text/css", false);
     response.write("body { background:url('" + bgURL + "'); }");
     return;
@@ -95,9 +95,10 @@
 
   // script that loads an internal worker that uses importScripts on a redirect
   // to an external script.
-  if (query["res"] == "loadWorkerThatMakesRequests") {
+  if (query.res == "loadWorkerThatMakesRequests") {
     // this creates a worker (same origin) that imports a redirecting script.
-    let workerURL = thisSite + resource + '?res=makeRequestsWorker&id=' + query["id"];
+    let workerURL =
+      thisSite + resource + "?res=makeRequestsWorker&id=" + query.id;
     response.setHeader("Content-Type", "application/javascript", false);
     response.write("new Worker('" + workerURL + "');");
     return;
@@ -105,45 +106,67 @@
 
   // script that loads an internal worker that uses importScripts on a redirect
   // to an external script.
-  if (query["res"] == "loadBlobWorkerThatMakesRequests") {
+  if (query.res == "loadBlobWorkerThatMakesRequests") {
     // this creates a worker (same origin) that imports a redirecting script.
-    let workerURL = thisSite + resource + '?res=makeRequestsWorker&id=' + query["id"];
+    let workerURL =
+      thisSite + resource + "?res=makeRequestsWorker&id=" + query.id;
     response.setHeader("Content-Type", "application/javascript", false);
-    response.write("var x = new XMLHttpRequest(); x.open('GET', '" + workerURL + "'); ");
+    response.write(
+      "var x = new XMLHttpRequest(); x.open('GET', '" + workerURL + "'); "
+    );
     response.write("x.responseType = 'blob'; x.send(); ");
-    response.write("x.onload = () => { new Worker(URL.createObjectURL(x.response)); };");
+    response.write(
+      "x.onload = () => { new Worker(URL.createObjectURL(x.response)); };"
+    );
     return;
   }
 
   // source for a worker that simply calls importScripts on a script that
   // redirects.
-  if (query["res"] == "makeRequestsWorker") {
+  if (query.res == "makeRequestsWorker") {
     // this is code for a worker that imports a redirected script.
-    let scriptURL = thisSite + resource + "?redir=other&res=script&id=script-src-redir-" + query["id"];
-    let xhrURL = thisSite + resource + "?redir=other&res=xhr-resp&id=xhr-src-redir-" + query["id"];
-    let fetchURL = thisSite + resource + "?redir=other&res=xhr-resp&id=fetch-src-redir-" + query["id"];
+    let scriptURL =
+      thisSite +
+      resource +
+      "?redir=other&res=script&id=script-src-redir-" +
+      query.id;
+    let xhrURL =
+      thisSite +
+      resource +
+      "?redir=other&res=xhr-resp&id=xhr-src-redir-" +
+      query.id;
+    let fetchURL =
+      thisSite +
+      resource +
+      "?redir=other&res=xhr-resp&id=fetch-src-redir-" +
+      query.id;
     response.setHeader("Content-Type", "application/javascript", false);
     response.write("try { importScripts('" + scriptURL + "'); } catch(ex) {} ");
-    response.write("var x = new XMLHttpRequest(); x.open('GET', '" + xhrURL + "'); x.send();");
+    response.write(
+      "var x = new XMLHttpRequest(); x.open('GET', '" + xhrURL + "'); x.send();"
+    );
     response.write("fetch('" + fetchURL + "');");
     return;
   }
 
   // script that invokes XHR
-  if (query["res"] == "xhr") {
+  if (query.res == "xhr") {
     response.setHeader("Content-Type", "application/javascript", false);
-    var resp = 'var x = new XMLHttpRequest();x.open("GET", "' + thisSite +
-               resource+'?redir=other&res=xhr-resp&id=xhr-src-redir", false);\n' +
-               'x.send(null);';
+    var resp =
+      'var x = new XMLHttpRequest();x.open("GET", "' +
+      thisSite +
+      resource +
+      '?redir=other&res=xhr-resp&id=xhr-src-redir", false);\n' +
+      "x.send(null);";
     response.write(resp);
     return;
   }
 
   // response to XHR
-  if (query["res"] == "xhr-resp") {
+  if (query.res == "xhr-resp") {
     response.setHeader("Access-Control-Allow-Origin", "*", false);
     response.setHeader("Content-Type", "text/html", false);
-    response.write('XHR response...');
+    response.write("XHR response...");
     return;
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_redirect_worker.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_redirect_worker.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_redirect_worker.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_redirect_worker.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,32 +3,33 @@
 const THIS_SITE = "http://mochi.test:8888";
 const OTHER_SITE = "http://example.com";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
-  var resource = query['path'];
+  var resource = query.path;
 
   response.setHeader("Cache-Control", "no-cache", false);
-  var loc = '';
+  var loc = "";
 
   // redirect to a resource on this site
-  if (query["redir"] == "same") {
-    loc = THIS_SITE+resource+"#"+query['page_id']
+  if (query.redir == "same") {
+    loc = THIS_SITE + resource + "#" + query.page_id;
   }
 
   // redirect to a resource on a different site
-  else if (query["redir"] == "other") {
-    loc = OTHER_SITE+resource+"#"+query['page_id']
+  else if (query.redir == "other") {
+    loc = OTHER_SITE + resource + "#" + query.page_id;
   }
 
   response.setStatusLine("1.1", 302, "Found");
   response.setHeader("Location", loc, false);
 
-  response.write('<html><head><meta http-equiv="refresh" content="0; url='+loc+'">');
+  response.write(
+    '<html><head><meta http-equiv="refresh" content="0; url=' + loc + '">'
+  );
   return;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_reloadInFreshProcess.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_reloadInFreshProcess.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_reloadInFreshProcess.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_reloadInFreshProcess.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,7 +1,6 @@
 "use strict";
 
-const TESTFRAME_QUERY_LARGE_ALLOCATION_WITH_NO_CSP =
- `<!DOCTYPE HTML>
+const TESTFRAME_QUERY_LARGE_ALLOCATION_WITH_NO_CSP = `<!DOCTYPE HTML>
   <html>
   <head>
     <title>Bug 1555050 - Test CSP Navigation using ReloadInFreshProcess</title>
@@ -16,8 +15,7 @@
   </body>
   </html>`;
 
-const TESTFRAME_QUERY_LARGE_ALLOCATION_WITH_CSP =
- `<!DOCTYPE HTML>
+const TESTFRAME_QUERY_LARGE_ALLOCATION_WITH_CSP = `<!DOCTYPE HTML>
   <html>
   <head>
     <title>Bug 1555050 - Test CSP Navigation using ReloadInFreshProcess</title>
@@ -32,8 +30,7 @@
   </body>
   </html>`;
 
-const LARGE_ALLOCATION = 
- `<!DOCTYPE HTML>
+const LARGE_ALLOCATION = `<!DOCTYPE HTML>
   <html>
   <head>
     <title>Bug 1555050 - Test CSP Navigation using ReloadInFreshProcess</title>
@@ -46,15 +43,18 @@
   </body>
   </html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
- 
+
   var queryString = request.queryString;
 
   if (queryString == "testframe_with_csp") {
-    response.setHeader("Content-Security-Policy", "upgrade-insecure-requests", false);     
+    response.setHeader(
+      "Content-Security-Policy",
+      "upgrade-insecure-requests",
+      false
+    );
     response.write(TESTFRAME_QUERY_LARGE_ALLOCATION_WITH_NO_CSP);
     return;
   }
@@ -65,7 +65,11 @@
   }
 
   if (queryString == "largeAllocation_with_csp") {
-    response.setHeader("Content-Security-Policy", "upgrade-insecure-requests", false);   
+    response.setHeader(
+      "Content-Security-Policy",
+      "upgrade-insecure-requests",
+      false
+    );
     response.setHeader("Large-Allocation", "0", false);
     response.write(LARGE_ALLOCATION);
     return;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_report_for_import_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_report_for_import_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_report_for_import_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_report_for_import_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -2,12 +2,13 @@
 // Bug 1048048 - CSP violation report not sent for @import
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/html", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_scheme_relative_sources.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_scheme_relative_sources.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_scheme_relative_sources.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_scheme_relative_sources.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,36 +3,39 @@
  * Bug 921493 - CSP: test allowlisting of scheme-relative sources
  */
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   Components.utils.importGlobalProperties(["URLSearchParams"]);
   let query = new URLSearchParams(request.queryString);
 
   let scheme = query.get("scheme");
   let policy = query.get("policy");
 
-  let linkUrl = scheme +
-  	"://example.com/tests/dom/security/test/csp/file_scheme_relative_sources.js";
+  let linkUrl =
+    scheme +
+    "://example.com/tests/dom/security/test/csp/file_scheme_relative_sources.js";
 
-  let html = "<!DOCTYPE HTML>" +
-             "<html>" +
-             "<head>" +
-             "<title>test schemeless sources within CSP</title>" +
-             "</head>" +
-             "<body> " +
-             "<div id='testdiv'>blocked</div>" +
-             // try to load a scheme relative script
-             "<script src='" + linkUrl + "'></script>" +
-             // have an inline script that reports back to the parent whether
-             // the script got loaded or not from within the sandboxed iframe.
-             "<script type='application/javascript'>" +
-             "window.onload = function() {" +
-             "var inner = document.getElementById('testdiv').innerHTML;" +
-             "window.parent.postMessage({ result: inner }, '*');" +
-             "}" +
-             "</script>" +
-             "</body>" +
-             "</html>";
+  let html =
+    "<!DOCTYPE HTML>" +
+    "<html>" +
+    "<head>" +
+    "<title>test schemeless sources within CSP</title>" +
+    "</head>" +
+    "<body> " +
+    "<div id='testdiv'>blocked</div>" +
+    // try to load a scheme relative script
+    "<script src='" +
+    linkUrl +
+    "'></script>" +
+    // have an inline script that reports back to the parent whether
+    // the script got loaded or not from within the sandboxed iframe.
+    "<script type='application/javascript'>" +
+    "window.onload = function() {" +
+    "var inner = document.getElementById('testdiv').innerHTML;" +
+    "window.parent.postMessage({ result: inner }, '*');" +
+    "}" +
+    "</script>" +
+    "</body>" +
+    "</html>";
 
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/html", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_svg_inline_style_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_svg_inline_style_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_svg_inline_style_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_svg_inline_style_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,8 +1,6 @@
-
 "use strict";
 
-const SVG_IMG =
-  `<svg width="200" height="200" viewBox="0 0 150 150" xmlns="http://www.w3.org/2000/svg">
+const SVG_IMG = `<svg width="200" height="200" viewBox="0 0 150 150" xmlns="http://www.w3.org/2000/svg">
    <style>
      circle {
        fill: orange;
@@ -13,8 +11,7 @@
    <circle cx="50" cy="50" r="40" />
    </svg>`;
 
-const SVG_IMG_NO_INLINE_STYLE =
-  `<svg width="200" height="200" viewBox="0 0 150 150" xmlns="http://www.w3.org/2000/svg">
+const SVG_IMG_NO_INLINE_STYLE = `<svg width="200" height="200" viewBox="0 0 150 150" xmlns="http://www.w3.org/2000/svg">
    <circle cx="50" cy="50" r="40" />
    </svg>`;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_testserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_testserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_testserver.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_testserver.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -7,20 +7,21 @@
   // Load the HTML to return in the response from file.
   // Since it's relative to the cwd of the test runner, we start there and
   // append to get to the actual path of the file.
-  const testHTMLFile =
-    Components.classes["@mozilla.org/file/directory_service;1"].
-    getService(Components.interfaces.nsIProperties).
-    get("CurWorkD", Components.interfaces.nsIFile);
-
-  const testHTMLFileStream =
-    Components.classes["@mozilla.org/network/file-input-stream;1"].
-    createInstance(Components.interfaces.nsIFileInputStream);
+  const testHTMLFile = Components.classes[
+    "@mozilla.org/file/directory_service;1"
+  ]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
+
+  const testHTMLFileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
 
   path
     .split("/")
     .filter(path => path)
     .reduce((file, path) => {
-      testHTMLFile.append(path)
+      testHTMLFile.append(path);
       return testHTMLFile;
     }, testHTMLFile);
   testHTMLFileStream.init(testHTMLFile, -1, 0, 0);
@@ -35,17 +36,21 @@
   response.setHeader("Cache-Control", "no-cache", false);
 
   // Deliver the CSP policy encoded in the URL
-  if(query.has("csp")){
+  if (query.has("csp")) {
     response.setHeader("Content-Security-Policy", query.get("csp"), false);
   }
 
   // Deliver the CSP report-only policy encoded in the URI
-  if(query.has("cspRO")){
-    response.setHeader("Content-Security-Policy-Report-Only", query.get("cspRO"), false);
+  if (query.has("cspRO")) {
+    response.setHeader(
+      "Content-Security-Policy-Report-Only",
+      query.get("cspRO"),
+      false
+    );
   }
 
   // Deliver the CORS header in the URL
-  if(query.has("cors")){
+  if (query.has("cors")) {
     response.setHeader("Access-Control-Allow-Origin", query.get("cors"), false);
   }
 
@@ -56,7 +61,7 @@
   }
 
   response.setHeader("Content-Type", type, false);
-  if(query.has("file")){
+  if (query.has("file")) {
     response.write(loadHTMLFromFile(query.get("file")));
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_cors_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_cors_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_cors_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_cors_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,8 +1,7 @@
 // Custom *.sjs file specifically for the needs of Bug:
 // Bug 1139297 - Implement CSP upgrade-insecure-requests directive
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_docwrite_iframe.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_docwrite_iframe.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_docwrite_iframe.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_docwrite_iframe.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -5,7 +5,8 @@
 const IFRAME_URL =
   "http://example.com/tests/dom/security/test/csp/file_upgrade_insecure_docwrite_iframe.sjs?docwriteframe";
 
-const TEST_FRAME = `
+const TEST_FRAME =
+  `
   <!DOCTYPE HTML>
   <html><head><meta charset="utf-8">
   <title>TEST_FRAME</title>
@@ -13,12 +14,13 @@
   </head>
   <body>
   <script type="text/javascript">
-    document.write('<iframe src="` + IFRAME_URL + `"/>');
+    document.write('<iframe src="` +
+  IFRAME_URL +
+  `"/>');
   </script>
   </body>
   </html>`;
 
-
 // doc.write(iframe) sends a post message to the parent indicating the current
 // location so the parent can make sure the request was upgraded to *https*.
 const DOC_WRITE_FRAME = `
@@ -30,8 +32,7 @@
   </body>
   </html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/html", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_loopback_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_loopback_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_loopback_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_loopback_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,8 +1,7 @@
 // Custom *.sjs file specifically for the needs of Bug:
 // Bug 1447784 - Implement CSP upgrade-insecure-requests directive
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Access-Control-Allow-Headers", "content-type", false);
   response.setHeader("Access-Control-Allow-Methods", "GET", false);
   response.setHeader("Access-Control-Allow-Origin", "*", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_navigation_redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_navigation_redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_navigation_redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_navigation_redirect.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -36,8 +36,10 @@
     return;
   }
 
-  if (query === "finaldoc_same_origin_redirect" ||
-      query === "finaldoc_cross_origin_redirect") {
+  if (
+    query === "finaldoc_same_origin_redirect" ||
+    query === "finaldoc_cross_origin_redirect"
+  ) {
     response.write(FINAL_DOCUMENT);
     return;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_reporting_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_reporting_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_reporting_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_reporting_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -6,35 +6,38 @@
 // small red image
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
-const REPORT_URI = "https://example.com/tests/dom/security/test/csp/file_upgrade_insecure_reporting_server.sjs?report";
+const REPORT_URI =
+  "https://example.com/tests/dom/security/test/csp/file_upgrade_insecure_reporting_server.sjs?report";
 const POLICY = "upgrade-insecure-requests; default-src https: 'unsafe-inline'";
-const POLICY_RO = "default-src https: 'unsafe-inline'; report-uri " + REPORT_URI;
+const POLICY_RO =
+  "default-src https: 'unsafe-inline'; report-uri " + REPORT_URI;
 
 function loadHTMLFromFile(path) {
   // Load the HTML to return in the response from file.
   // Since it's relative to the cwd of the test runner, we start there and
   // append to get to the actual path of the file.
-  var testHTMLFile =
-    Components.classes["@mozilla.org/file/directory_service;1"].
-    getService(Components.interfaces.nsIProperties).
-    get("CurWorkD", Components.interfaces.nsIFile);
+  var testHTMLFile = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
   var dirs = path.split("/");
   for (var i = 0; i < dirs.length; i++) {
     testHTMLFile.append(dirs[i]);
   }
-  var testHTMLFileStream =
-    Components.classes["@mozilla.org/network/file-input-stream;1"].
-    createInstance(Components.interfaces.nsIFileInputStream);
+  var testHTMLFileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   testHTMLFileStream.init(testHTMLFile, -1, 0, 0);
-  var testHTML = NetUtil.readInputStreamToString(testHTMLFileStream, testHTMLFileStream.available());
+  var testHTML = NetUtil.readInputStreamToString(
+    testHTMLFileStream,
+    testHTMLFileStream.available()
+  );
   return testHTML;
 }
 
-
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
@@ -50,8 +53,12 @@
     response.setHeader("Content-Security-Policy", POLICY, false);
     response.setHeader("Content-Security-Policy-Report-Only", POLICY_RO, false);
     response.setHeader("Content-Type", "text/html", false);
-    response.write(loadHTMLFromFile("tests/dom/security/test/csp/file_upgrade_insecure_reporting.html"));
-  	return;
+    response.write(
+      loadHTMLFromFile(
+        "tests/dom/security/test/csp/file_upgrade_insecure_reporting.html"
+      )
+    );
+    return;
   }
 
   // (3) Return the image back to the client
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/file_upgrade_insecure_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/file_upgrade_insecure_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -14,11 +14,21 @@
   "</body>" +
   "</html>";
 
-const expectedQueries = [ "script", "style", "img", "iframe", "form", "xhr",
-                          "media", "object", "font", "img-redir", "nested-img"];
+const expectedQueries = [
+  "script",
+  "style",
+  "img",
+  "iframe",
+  "form",
+  "xhr",
+  "media",
+  "object",
+  "font",
+  "img-redir",
+  "nested-img",
+];
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
   var queryString = request.queryString;
@@ -50,7 +60,7 @@
   }
 
   // make sure all the requested queries are indeed https
-  queryString += (request.scheme == "https") ? "-ok" : "-error";
+  queryString += request.scheme == "https" ? "-ok" : "-error";
 
   var receivedQueries = getState("receivedQueries");
 
@@ -83,7 +93,7 @@
   // the iframe context in case of an error so we
   // can test both, using upgrade-insecure as well
   // as the base case of not using upgrade-insecure.
-  if ((queryString == "iframe-ok") || (queryString == "iframe-error")) {
+  if (queryString == "iframe-ok" || queryString == "iframe-error") {
     response.write(IFRAME_CONTENT);
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/referrerdirective.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/referrerdirective.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/referrerdirective.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/referrerdirective.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,36 +1,40 @@
 // Used for bug 965727 to serve up really simple scripts reflecting the
 // referrer sent to load this back to the loader.
 
-
 function handleRequest(request, response) {
   // skip speculative loads.
 
-  var splits = request.queryString.split('&');
+  var splits = request.queryString.split("&");
   var params = {};
   splits.forEach(function(v) {
-    let parts = v.split('=');
+    let parts = v.split("=");
     params[parts[0]] = unescape(parts[1]);
   });
 
-  var loadType = params['type'];
-  var referrerLevel = 'error';
+  var loadType = params.type;
+  var referrerLevel = "error";
 
-  if (request.hasHeader('Referer')) {
-    var referrer = request.getHeader('Referer');
+  if (request.hasHeader("Referer")) {
+    var referrer = request.getHeader("Referer");
     if (referrer.indexOf("file_testserver.sjs") > -1) {
       referrerLevel = "full";
     } else {
       referrerLevel = "origin";
     }
   } else {
-    referrerLevel = 'none';
+    referrerLevel = "none";
   }
 
-  var theScript = 'window.postResult("' + loadType + '", "' + referrerLevel + '");';
-  response.setHeader('Content-Type', 'application/javascript; charset=utf-8', false);
-  response.setHeader('Cache-Control', 'no-cache', false);
+  var theScript =
+    'window.postResult("' + loadType + '", "' + referrerLevel + '");';
+  response.setHeader(
+    "Content-Type",
+    "application/javascript; charset=utf-8",
+    false
+  );
+  response.setHeader("Cache-Control", "no-cache", false);
 
   if (request.method != "OPTIONS") {
-  response.write(theScript);
+    response.write(theScript);
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/worker.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/worker.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/csp/worker.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/csp/worker.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -2,13 +2,11 @@
 
 const SJS = "http://mochi.test:8888/tests/dom/security/test/csp/worker.sjs";
 
-function createFetchWorker(url)
-{
-    return `fetch("${url}");`;
+function createFetchWorker(url) {
+  return `fetch("${url}");`;
 }
 
-function createXHRWorker(url)
-{
+function createXHRWorker(url) {
   return `
     try {
       var xhr = new XMLHttpRequest();
@@ -18,8 +16,7 @@
   `;
 }
 
-function createImportScriptsWorker(url)
-{
+function createImportScriptsWorker(url) {
   return `
     try {
       importScripts("${url}");
@@ -27,14 +24,12 @@
   `;
 }
 
-function createChildWorkerURL(params)
-{
+function createChildWorkerURL(params) {
   let url = SJS + "?" + params.toString();
   return `new Worker("${url}");`;
 }
 
-function createChildWorkerBlob(params)
-{
+function createChildWorkerBlob(params) {
   let url = SJS + "?" + params.toString();
   return `
     try {
@@ -48,8 +43,7 @@
   `;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   let params = new URLSearchParams(request.queryString);
 
   let id = params.get("id");
@@ -61,8 +55,12 @@
   response.setHeader("Content-Type", "application/javascript");
 
   // Deliver the CSP policy encoded in the URL
-  if(params.has("csp")) {
-    response.setHeader("Content-Security-Policy", unescape(params.get("csp")), false);
+  if (params.has("csp")) {
+    response.setHeader(
+      "Content-Security-Policy",
+      unescape(params.get("csp")),
+      false
+    );
   }
 
   if (child) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_block_script_wrong_mime_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_block_script_wrong_mime_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_block_script_wrong_mime_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_block_script_wrong_mime_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -27,7 +27,11 @@
       response.write(WORKER);
       break;
     case "worker-import":
-      response.write(`importScripts("file_block_script_wrong_mime_server.sjs?type=script&mime=${query.get("mime")}");`);
+      response.write(
+        `importScripts("file_block_script_wrong_mime_server.sjs?type=script&mime=${query.get(
+          "mime"
+        )}");`
+      );
       response.write(WORKER);
       break;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_block_subresource_redir_to_data.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_block_subresource_redir_to_data.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_block_subresource_redir_to_data.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_block_subresource_redir_to_data.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,22 +1,30 @@
 "use strict";
 
 let SCRIPT_DATA = "alert('this alert should be blocked');";
-let WORKER_DATA = "onmessage = function(event) { postMessage('worker-loaded'); }";
+let WORKER_DATA =
+  "onmessage = function(event) { postMessage('worker-loaded'); }";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   const query = request.queryString;
 
   response.setHeader("Cache-Control", "no-cache", false);
   response.setStatusLine("1.1", 302, "Found");
 
   if (query === "script" || query === "modulescript") {
-    response.setHeader("Location", "data:text/javascript," + escape(SCRIPT_DATA), false);
+    response.setHeader(
+      "Location",
+      "data:text/javascript," + escape(SCRIPT_DATA),
+      false
+    );
     return;
   }
 
   if (query === "worker") {
-    response.setHeader("Location", "data:text/javascript," + escape(WORKER_DATA), false);
+    response.setHeader(
+      "Location",
+      "data:text/javascript," + escape(WORKER_DATA),
+      false
+    );
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_block_toplevel_data_redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_block_toplevel_data_redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_block_toplevel_data_redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_block_toplevel_data_redirect.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -4,8 +4,7 @@
 var DATA_URI =
   "<body>toplevel data: URI navigations after redirect should be blocked</body>";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_cache_splitting_isloaded.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_cache_splitting_isloaded.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_cache_splitting_isloaded.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_cache_splitting_isloaded.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -32,5 +32,4 @@
     queryResponse.write("1");
     queryResponse.finish();
   });
-  return;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_contentpolicytype_targeted_link_iframe.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_contentpolicytype_targeted_link_iframe.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_contentpolicytype_targeted_link_iframe.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_contentpolicytype_targeted_link_iframe.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -22,8 +22,7 @@
   </body>
   </html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/html", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_framing_error_pages.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_framing_error_pages.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_framing_error_pages.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_framing_error_pages.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,7 +1,6 @@
 "use strict";
 
 function handleRequest(request, response) {
-
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/html", false);
 
@@ -13,7 +12,11 @@
   }
 
   if (query === "csp") {
-    response.setHeader("content-security-policy", "frame-ancestors 'none'", false);
+    response.setHeader(
+      "content-security-policy",
+      "frame-ancestors 'none'",
+      false
+    );
     response.write("<html>csp test loaded</html>");
     return;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_gpc_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_gpc_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_gpc_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_gpc_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -8,8 +8,7 @@
 
   if (gpc === "1") {
     response.write("true");
-  }
-  else {
+  } else {
     response.write("false");
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_nosniff_navigation_garbage.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_nosniff_navigation_garbage.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_nosniff_navigation_garbage.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_nosniff_navigation_garbage.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,31 +3,30 @@
 // small red image
 const IMG = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
-function getSniffableContent(selector){
-  switch(selector){
-  case "xml":
-    return `<?xml version="1.0"?><test/>`;
-  case "html":
-    return `<!Doctype html> <html> <head></head> <body> Test test </body></html>`;
-  case 'js':
-    return `<script> alert("This shouldt not be executed"); </script>`
-  case "css":
-    return `*{ color: pink !important; }`;
-  case 'json':
+function getSniffableContent(selector) {
+  switch (selector) {
+    case "xml":
+      return `<?xml version="1.0"?><test/>`;
+    case "html":
+      return `<!Doctype html> <html> <head></head> <body> Test test </body></html>`;
+    case "js":
+      return `<script> alert("This shouldt not be executed"); </script>`;
+    case "css":
+      return `*{ color: pink !important; }`;
+    case "json":
       return `{ 'test':'yes' }`;
-  case 'img':
+    case "img":
       return IMG;
   }
   return "Basic UTF-8 Text";
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
-  response.setHeader('X-Content-Type-Options', 'nosniff'); // Disable Sniffing
-  response.setHeader("Content-Type","garbage/garbage");  // Try Browser to force sniffing. 
+  response.setHeader("X-Content-Type-Options", "nosniff"); // Disable Sniffing
+  response.setHeader("Content-Type", "garbage/garbage"); // Try Browser to force sniffing.
   response.write(getSniffableContent(request.queryString));
-  return;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_nosniff_navigation_mismatch.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_nosniff_navigation_mismatch.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_nosniff_navigation_mismatch.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_nosniff_navigation_mismatch.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,31 +3,30 @@
 // small red image
 const IMG = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
-function getSniffableContent(selector){
-  switch(selector){
-  case "xml":
-    return `<?xml version="1.0"?><test/>`;
-  case "html":
-    return `<!Doctype html> <html> <head></head> <body> Test test </body></html>`;
-  case 'js':
-    return `<script> alert("This shouldt not be executed"); </script>`
-  case "css":
-    return `*{ color: pink !important; }`;
-  case 'json':
+function getSniffableContent(selector) {
+  switch (selector) {
+    case "xml":
+      return `<?xml version="1.0"?><test/>`;
+    case "html":
+      return `<!Doctype html> <html> <head></head> <body> Test test </body></html>`;
+    case "js":
+      return `<script> alert("This shouldt not be executed"); </script>`;
+    case "css":
+      return `*{ color: pink !important; }`;
+    case "json":
       return `{ 'test':'yes' }`;
-  case 'img':
+    case "img":
       return IMG;
   }
   return "Basic UTF-8 Text";
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
-  response.setHeader('X-Content-Type-Options', 'nosniff'); // Disable Sniffing
-  response.setHeader("Content-Type","image/png");  // Send a wrong mime type
+  response.setHeader("X-Content-Type-Options", "nosniff"); // Disable Sniffing
+  response.setHeader("Content-Type", "image/png"); // Send a wrong mime type
   response.write(getSniffableContent(request.queryString));
-  return;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_nosniff_navigation.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_nosniff_navigation.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_nosniff_navigation.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_nosniff_navigation.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,30 +3,28 @@
 // small red image
 const IMG = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
-function getSniffableContent(selector){
-  switch(selector){
-  case "xml":
-    return `<?xml version="1.0"?><test/>`;
-  case "html":
-    return `<!Doctype html> <html> <head></head> <body> Test test </body></html>`;
-  case "css":
-    return `*{ color: pink !important; }`;
-  case 'json':
+function getSniffableContent(selector) {
+  switch (selector) {
+    case "xml":
+      return `<?xml version="1.0"?><test/>`;
+    case "html":
+      return `<!Doctype html> <html> <head></head> <body> Test test </body></html>`;
+    case "css":
+      return `*{ color: pink !important; }`;
+    case "json":
       return `{ 'test':'yes' }`;
-  case 'img':
+    case "img":
       return IMG;
   }
   return "Basic UTF-8 Text";
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
-  response.setHeader('X-Content-Type-Options', 'nosniff'); // Disable Sniffing
-  response.setHeader("Content-Type","*/*");  // Try Browser to force sniffing. 
+  response.setHeader("X-Content-Type-Options", "nosniff"); // Disable Sniffing
+  response.setHeader("Content-Type", "*/*"); // Try Browser to force sniffing.
   response.write(getSniffableContent(request.queryString));
-  return;
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_nosniff_testserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_nosniff_testserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_nosniff_testserver.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_nosniff_testserver.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -7,7 +7,8 @@
 // small red image
 const IMG = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
 function handleRequest(request, response) {
   const query = new URLSearchParams(request.queryString);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_about.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_about.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_about.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_about.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,19 +3,22 @@
 // small red image
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
-const IFRAME_INC =
-  `<iframe src='http://mochi.test:8888/tests/dom/security/test/general/file_same_site_cookies_about.sjs?inclusion'></iframe>`;
+const IFRAME_INC = `<iframe src='http://mochi.test:8888/tests/dom/security/test/general/file_same_site_cookies_about.sjs?inclusion'></iframe>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
   // using startsWith and discard the math random
   if (request.queryString.startsWith("setSameSiteCookie")) {
-    response.setHeader("Set-Cookie", "myKey=mySameSiteAboutCookie; samesite=strict", true);
+    response.setHeader(
+      "Set-Cookie",
+      "myKey=mySameSiteAboutCookie; samesite=strict",
+      true
+    );
     response.setHeader("Content-Type", "image/png");
     response.write(IMG_BYTES);
     return;
@@ -42,22 +45,27 @@
 
   // inclusion tets
   if (request.queryString.includes("loadsrcdocframeInc")) {
-    response.write("<iframe srcdoc=\"" + IFRAME_INC + "\"></iframe>");
+    response.write('<iframe srcdoc="' + IFRAME_INC + '"></iframe>');
     return;
   }
 
   if (request.queryString.includes("loadblankframeInc")) {
-    let FRAME = `
+    let FRAME =
+      `
       <iframe id="blankframe" src="about:blank"></iframe>
       <script>
-        document.getElementById("blankframe").contentDocument.write(\"` + IFRAME_INC +`\");
+        document.getElementById("blankframe").contentDocument.write(\"` +
+      IFRAME_INC +
+      `\");
       <\/script>`;
     response.write(FRAME);
     return;
   }
 
   if (request.queryString.includes("navigation")) {
-    const cookies = request.hasHeader("Cookie") ? request.getHeader("Cookie") : "";
+    const cookies = request.hasHeader("Cookie")
+      ? request.getHeader("Cookie")
+      : "";
     response.write(`
       <!DOCTYPE html>
       <html>
@@ -71,7 +79,9 @@
   }
 
   if (request.queryString.includes("inclusion")) {
-    const cookies = request.hasHeader("Cookie") ? request.getHeader("Cookie") : "";
+    const cookies = request.hasHeader("Cookie")
+      ? request.getHeader("Cookie")
+      : "";
     response.write(`
       <!DOCTYPE html>
       <html>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_cross_origin_context.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_cross_origin_context.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_cross_origin_context.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_cross_origin_context.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,7 +3,8 @@
 // small red image
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
 const FRAME = `
   <!DOCTYPE html>
@@ -21,13 +22,16 @@
   </body>
   </html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
   if (request.queryString.includes("setSameSiteCookie")) {
-    response.setHeader("Set-Cookie", "myKey=strictSameSiteCookie; samesite=strict", true);
+    response.setHeader(
+      "Set-Cookie",
+      "myKey=strictSameSiteCookie; samesite=strict",
+      true
+    );
     response.setHeader("Content-Type", "image/png");
     response.write(IMG_BYTES);
     return;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_from_script.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_from_script.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_from_script.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_from_script.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -29,8 +29,7 @@
   </body>
   </html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_iframe.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_iframe.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_iframe.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_iframe.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,7 +3,8 @@
 // small red image
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
 const NESTED_IFRAME_NAVIGATION = `
   <html>
@@ -31,14 +32,17 @@
   </body>
   </html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
   // using startsWith and discard the math random
   if (request.queryString.startsWith("setSameSiteCookie")) {
-    response.setHeader("Set-Cookie", "myKey=mySameSiteIframeTestCookie; samesite=strict", true);
+    response.setHeader(
+      "Set-Cookie",
+      "myKey=mySameSiteIframeTestCookie; samesite=strict",
+      true
+    );
     response.setHeader("Content-Type", "image/png");
     response.write(IMG_BYTES);
     return;
@@ -51,7 +55,11 @@
   }
 
   if (request.queryString === "nestedSandboxIframeNavigation") {
-    response.setHeader("Content-Security-Policy", "sandbox allow-scripts", false);
+    response.setHeader(
+      "Content-Security-Policy",
+      "sandbox allow-scripts",
+      false
+    );
     response.write(NESTED_IFRAME_NAVIGATION);
     return;
   }
@@ -63,12 +71,18 @@
   }
 
   if (request.queryString === "nestedSandboxIframeInclusion") {
-    response.setHeader("Content-Security-Policy", "sandbox allow-scripts", false);
+    response.setHeader(
+      "Content-Security-Policy",
+      "sandbox allow-scripts",
+      false
+    );
     response.write(NESTED_IFRAME_INCLUSION);
     return;
   }
 
-  const cookies = request.hasHeader("Cookie") ? request.getHeader("Cookie") : "";
+  const cookies = request.hasHeader("Cookie")
+    ? request.getHeader("Cookie")
+    : "";
   response.write(`
     <!DOCTYPE html>
     <html>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_redirect.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,7 +3,8 @@
 // small red image
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
 const FRAME = `
   <!DOCTYPE html>
@@ -21,29 +22,41 @@
   </body>
   </html>`;
 
-const SAME_ORIGIN = "http://mochi.test:8888/"
+const SAME_ORIGIN = "http://mochi.test:8888/";
 const CROSS_ORIGIN = "http://example.com/";
-const PATH = "tests/dom/security/test/general/file_same_site_cookies_redirect.sjs";
+const PATH =
+  "tests/dom/security/test/general/file_same_site_cookies_redirect.sjs";
 
-const FRAME_META_REFRESH_SAME = `
+const FRAME_META_REFRESH_SAME =
+  `
   <html><head>
   <meta http-equiv="refresh" content="0;
-   url='` + SAME_ORIGIN + PATH + `?loadFrame'">
+   url='` +
+  SAME_ORIGIN +
+  PATH +
+  `?loadFrame'">
   </head></html>`;
 
-const FRAME_META_REFRESH_CROSS = `
+const FRAME_META_REFRESH_CROSS =
+  `
   <html><head>
   <meta http-equiv="refresh" content="0;
-   url='` + CROSS_ORIGIN + PATH + `?loadFrame'">
+   url='` +
+  CROSS_ORIGIN +
+  PATH +
+  `?loadFrame'">
   </head></html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
   if (request.queryString === "setSameSiteCookie") {
-    response.setHeader("Set-Cookie", "myKey=strictSameSiteCookie; samesite=strict", true);
+    response.setHeader(
+      "Set-Cookie",
+      "myKey=strictSameSiteCookie; samesite=strict",
+      true
+    );
     response.setHeader("Content-Type", "image/png");
     response.write(IMG_BYTES);
     return;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_subrequest.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_subrequest.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_subrequest.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_subrequest.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,7 +3,8 @@
 // small red image
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
 const FRAME = `
   <!DOCTYPE html>
@@ -16,20 +17,27 @@
   </body>
   </html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
   if (request.queryString.includes("setStrictSameSiteCookie")) {
-    response.setHeader("Set-Cookie", "myKey=strictSameSiteCookie; samesite=strict", true);
+    response.setHeader(
+      "Set-Cookie",
+      "myKey=strictSameSiteCookie; samesite=strict",
+      true
+    );
     response.setHeader("Content-Type", "image/png");
     response.write(IMG_BYTES);
     return;
   }
 
   if (request.queryString.includes("setLaxSameSiteCookie")) {
-    response.setHeader("Set-Cookie", "myKey=laxSameSiteCookie; samesite=lax", true);
+    response.setHeader(
+      "Set-Cookie",
+      "myKey=laxSameSiteCookie; samesite=lax",
+      true
+    );
     response.setHeader("Content-Type", "image/png");
     response.write(IMG_BYTES);
     return;
@@ -52,8 +60,7 @@
     var cookie = "unitialized";
     if (request.hasHeader("Cookie")) {
       cookie = request.getHeader("Cookie");
-    }
-    else {
+    } else {
       cookie = "myKey=noCookie";
     }
     response.setHeader("Content-Type", "image/png");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_toplevel_nav.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_toplevel_nav.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_toplevel_nav.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_toplevel_nav.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,7 +3,8 @@
 // small red image
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
 const FRAME = `
   <!DOCTYPE html>
@@ -31,20 +32,27 @@
   </body>
   </html>`;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
   if (request.queryString.includes("setStrictSameSiteCookie")) {
-    response.setHeader("Set-Cookie", "myKey=strictSameSiteCookie; samesite=strict", true);
+    response.setHeader(
+      "Set-Cookie",
+      "myKey=strictSameSiteCookie; samesite=strict",
+      true
+    );
     response.setHeader("Content-Type", "image/png");
     response.write(IMG_BYTES);
     return;
   }
 
   if (request.queryString.includes("setLaxSameSiteCookie")) {
-    response.setHeader("Set-Cookie", "myKey=laxSameSiteCookie; samesite=lax", true);
+    response.setHeader(
+      "Set-Cookie",
+      "myKey=laxSameSiteCookie; samesite=lax",
+      true
+    );
     response.setHeader("Content-Type", "image/png");
     response.write(IMG_BYTES);
     return;
@@ -67,8 +75,7 @@
     var cookie = "unitialized";
     if (request.hasHeader("Cookie")) {
       cookie = request.getHeader("Cookie");
-    }
-    else {
+    } else {
       cookie = "myKey=noCookie";
     }
     response.write(WIN);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_toplevel_set_cookie.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_toplevel_set_cookie.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_same_site_cookies_toplevel_set_cookie.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_same_site_cookies_toplevel_set_cookie.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -34,12 +34,12 @@
   </body>
   </html>`;
 
-const SAME_ORIGIN = "http://mochi.test:8888/"
+const SAME_ORIGIN = "http://mochi.test:8888/";
 const CROSS_ORIGIN = "http://example.com/";
-const PATH = "tests/dom/security/test/general/file_same_site_cookies_redirect.sjs";
+const PATH =
+  "tests/dom/security/test/general/file_same_site_cookies_redirect.sjs";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
@@ -49,7 +49,11 @@
   }
 
   if (request.queryString === "loadWinAndSetCookie") {
-    response.setHeader("Set-Cookie", "myKey=laxSameSiteCookie; samesite=lax", true);
+    response.setHeader(
+      "Set-Cookie",
+      "myKey=laxSameSiteCookie; samesite=lax",
+      true
+    );
     response.write(DUMMY_WIN);
     return;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_toplevel_data_navigations.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_toplevel_data_navigations.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/general/file_toplevel_data_navigations.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/general/file_toplevel_data_navigations.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -4,8 +4,7 @@
 var DATA_URI =
   "data:text/html,<body>toplevel data: URI navigations after redirect should be blocked</body>";
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-first/file_break_endless_upgrade_downgrade_loop.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-first/file_break_endless_upgrade_downgrade_loop.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-first/file_break_endless_upgrade_downgrade_loop.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-first/file_break_endless_upgrade_downgrade_loop.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,7 +1,9 @@
 "use strict";
 
-const REDIRECT_URI = "http://example.com/tests/dom/security/test/https-first/file_break_endless_upgrade_downgrade_loop.sjs?verify";
-const DOWNGRADE_URI = "http://example.com/tests/dom/security/test/https-first/file_downgrade_with_different_path.sjs";
+const REDIRECT_URI =
+  "http://example.com/tests/dom/security/test/https-first/file_break_endless_upgrade_downgrade_loop.sjs?verify";
+const DOWNGRADE_URI =
+  "http://example.com/tests/dom/security/test/https-first/file_downgrade_with_different_path.sjs";
 const RESPONSE_ERROR = "unexpected-query";
 
 // An onload postmessage to window opener
@@ -46,9 +48,8 @@
 
   // Check if scheme is http:// or https://
   if (query == "verify") {
-    let response_content = request.scheme === "https"
-      ? RESPONSE_HTTPS_SCHEME
-      : RESPONSE_HTTP_SCHEME;
+    let response_content =
+      request.scheme === "https" ? RESPONSE_HTTPS_SCHEME : RESPONSE_HTTP_SCHEME;
     response.setStatusLine(request.httpVersion, 200, "OK");
     response.write(response_content);
     return;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-first/file_downgrade_bad_responses.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-first/file_downgrade_bad_responses.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-first/file_downgrade_bad_responses.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-first/file_downgrade_bad_responses.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,4 +1,4 @@
-// Custom *.sjs file specifically for the needs of Bug 1709552 
+// Custom *.sjs file specifically for the needs of Bug 1709552
 "use strict";
 
 const RESPONSE_SUCCESS = `
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-first/file_downgrade_with_different_path.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-first/file_downgrade_with_different_path.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-first/file_downgrade_with_different_path.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-first/file_downgrade_with_different_path.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -20,10 +20,8 @@
   </html>`;
 
 function handleRequest(request, response) {
-  let response_content = request.scheme === "https"
-    ? RESPONSE_HTTPS_SCHEME
-    : RESPONSE_HTTP_SCHEME;
+  let response_content =
+    request.scheme === "https" ? RESPONSE_HTTPS_SCHEME : RESPONSE_HTTP_SCHEME;
   response.setStatusLine(request.httpVersion, 200, "OK");
   response.write(response_content);
-  return;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-first/file_httpsfirst_timeout_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-first/file_httpsfirst_timeout_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-first/file_httpsfirst_timeout_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-first/file_httpsfirst_timeout_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,6 +1,4 @@
-
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-only/file_background_redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-only/file_background_redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-only/file_background_redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-only/file_background_redirect.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,7 +1,7 @@
 // Custom *.sjs file specifically for the needs of Bug 1683015
 "use strict";
 
-Cu.import("resource://gre/modules/Timer.jsm");
+let { setTimeout } = ChromeUtils.import("resource://gre/modules/Timer.jsm");
 
 async function handleRequest(request, response) {
   // avoid confusing cache behaviour
@@ -16,7 +16,9 @@
     response.processAsync();
     setTimeout(() => {
       response.setStatusLine("1.1", 200, "OK");
-      response.write("<html><body>Test Page for Bug 1683015 loaded</body></html>");
+      response.write(
+        "<html><body>Test Page for Bug 1683015 loaded</body></html>"
+      );
       response.finish();
     }, 5000); /* wait 5 seconds */
     return;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-only/file_break_endless_upgrade_downgrade_loop.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-only/file_break_endless_upgrade_downgrade_loop.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-only/file_break_endless_upgrade_downgrade_loop.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-only/file_break_endless_upgrade_downgrade_loop.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -37,7 +37,7 @@
   // get upgraded, then we rather fall through and display unexpected content.
   if (request.scheme === "https") {
     let query = request.queryString;
-   
+
     if (query === "test1a") {
       response.write(REDIRECT_META);
       return;
@@ -63,5 +63,5 @@
 
   // we should never get here, just in case,
   // let's return something unexpected
-  response.write("<html><body>DO NOT DISPLAY THIS</body></html>")
+  response.write("<html><body>DO NOT DISPLAY THIS</body></html>");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-only/file_http_background_auth_request.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-only/file_http_background_auth_request.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-only/file_http_background_auth_request.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-only/file_http_background_auth_request.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -7,7 +7,7 @@
   if (request.scheme === "https") {
     response.setHeader("Content-Type", "text/html;charset=utf-8", false);
     response.setStatusLine(request.httpVersion, 401, "Unauthorized");
-    response.setHeader("WWW-Authenticate", "Basic realm=\"bug1665062\"");
+    response.setHeader("WWW-Authenticate", 'Basic realm="bug1665062"');
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-only/file_user_suggestion_box.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-only/file_user_suggestion_box.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/https-only/file_user_suggestion_box.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/https-only/file_user_suggestion_box.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -20,5 +20,4 @@
   }
   // in this test there should not be a secure connection to a site without www.
   response.write("This page should not be reached");
-  return;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/mixedcontentblocker/download_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/mixedcontentblocker/download_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/mixedcontentblocker/download_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/mixedcontentblocker/download_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,15 +1,14 @@
 // force the Browser to Show a Download Prompt
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   let type = "image/png";
   let filename = "hello.png";
-  request.queryString.split('&').forEach((val) => {
-    var [key, value] = val.split('=');
-    if (key == "type"){
-      type= value;
+  request.queryString.split("&").forEach(val => {
+    var [key, value] = val.split("=");
+    if (key == "type") {
+      type = value;
     }
-    if (key == "name"){
+    if (key == "name") {
       filename = value;
     }
   });
@@ -17,5 +16,5 @@
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Disposition", `attachment; filename=${filename}`);
   response.setHeader("Content-Type", type);
-  response.write('🙈🙊🐵🙊');
+  response.write("🙈🙊🐵🙊");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/mixedcontentblocker/file_redirect_handler.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/mixedcontentblocker/file_redirect_handler.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/mixedcontentblocker/file_redirect_handler.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/mixedcontentblocker/file_redirect_handler.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -9,15 +9,21 @@
 
   if (queryStr === "https-to-https-redirect") {
     response.setStatusLine("1.1", 302, "Found");
-    response.setHeader("Location",
-      "https://" + URL_PATH + "file_redirect_handler.sjs?load", false);
+    response.setHeader(
+      "Location",
+      "https://" + URL_PATH + "file_redirect_handler.sjs?load",
+      false
+    );
     return;
   }
 
   if (queryStr === "https-to-http-redirect") {
     response.setStatusLine("1.1", 302, "Found");
-    response.setHeader("Location",
-      "http://" + URL_PATH + "file_redirect_handler.sjs?load", false);
+    response.setHeader(
+      "Location",
+      "http://" + URL_PATH + "file_redirect_handler.sjs?load",
+      false
+    );
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/mixedcontentblocker/file_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/mixedcontentblocker/file_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/mixedcontentblocker/file_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/mixedcontentblocker/file_server.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -13,40 +13,43 @@
   // Load the content to return in the response from file.
   // Since it's relative to the cwd of the test runner, we start there and
   // append to get to the actual path of the file.
-  var testContentFile =
-    Components.classes["@mozilla.org/file/directory_service;1"].
-    getService(Components.interfaces.nsIProperties).
-    get("CurWorkD", Components.interfaces.nsIFile);
+  var testContentFile = Components.classes[
+    "@mozilla.org/file/directory_service;1"
+  ]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
   var dirs = path.split("/");
   for (var i = 0; i < dirs.length; i++) {
     testContentFile.append(dirs[i]);
   }
-  var testContentFileStream =
-    Components.classes["@mozilla.org/network/file-input-stream;1"].
-    createInstance(Components.interfaces.nsIFileInputStream);
+  var testContentFileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   testContentFileStream.init(testContentFile, -1, 0, 0);
-  var testContent = NetUtil.readInputStreamToString(testContentFileStream, testContentFileStream.available());
+  var testContent = NetUtil.readInputStreamToString(
+    testContentFileStream,
+    testContentFileStream.available()
+  );
   return testContent;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   const { scheme, host, path } = request;
   // get the Content-Type to serve from the query string
   var contentType = null;
   var uniqueID = null;
   var showLastRequest = false;
-  request.queryString.split('&').forEach(function (val) {
-     var [name, value] = val.split('=');
-       if (name == "type") {
-         contentType = unescape(value);
-       }
-       if (name == "uniqueID") {
-         uniqueID = unescape(value);
-       }
-       if (name == "lastRequest") {
-         showLastRequest = true;
-       }
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
+    if (name == "type") {
+      contentType = unescape(value);
+    }
+    if (name == "uniqueID") {
+      uniqueID = unescape(value);
+    }
+    if (name == "lastRequest") {
+      showLastRequest = true;
+    }
   });
 
   // avoid confusing cache behaviors
@@ -73,18 +76,23 @@
     return;
   }
 
-  setState("lastRequest", JSON.stringify({
-    scheme,
-    host,
-    path,
-    uniqueID,
-    contentType: contentType || "other",
-  }));
+  setState(
+    "lastRequest",
+    JSON.stringify({
+      scheme,
+      host,
+      path,
+      uniqueID,
+      contentType: contentType || "other",
+    })
+  );
 
   switch (contentType) {
     case "img":
       response.setHeader("Content-Type", "image/png", false);
-      response.write(loadContentFromFile("tests/image/test/mochitest/blue.png"));
+      response.write(
+        loadContentFromFile("tests/image/test/mochitest/blue.png")
+      );
       break;
 
     case "media":
@@ -109,7 +117,7 @@
       response.setHeader("Content-Type", "application/x-test-match", false);
       break;
 
-   case "xhr":
+    case "xhr":
       response.setHeader("Content-Type", "text/xml", false);
       response.setHeader("Access-Control-Allow-Origin", "https://example.com");
       response.write('<?xml version="1.0" encoding="UTF-8" ?><test></test>');
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/referrer-policy/img_referrer_testserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/referrer-policy/img_referrer_testserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/referrer-policy/img_referrer_testserver.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/referrer-policy/img_referrer_testserver.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,48 +1,65 @@
-var BASE_URL = 'example.com/tests/dom/security/test/referrer-policy/img_referrer_testserver.sjs';
+var BASE_URL =
+  "example.com/tests/dom/security/test/referrer-policy/img_referrer_testserver.sjs";
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
 function createTestUrl(aPolicy, aAction, aName, aContent) {
-  var content = aContent || 'text';
-  return 'http://' + BASE_URL + '?' +
-         'action=' + aAction + '&' +
-         'policy=' + aPolicy + '&' +
-         'name=' + aName + '&' +
-         'content=' + content;
+  var content = aContent || "text";
+  return (
+    "http://" +
+    BASE_URL +
+    "?" +
+    "action=" +
+    aAction +
+    "&" +
+    "policy=" +
+    aPolicy +
+    "&" +
+    "name=" +
+    aName +
+    "&" +
+    "content=" +
+    content
+  );
 }
 
 function createTestPage(aHead, aImgPolicy, aName) {
-  var _createTestUrl = createTestUrl.bind(null, aImgPolicy, 'test', aName);
+  var _createTestUrl = createTestUrl.bind(null, aImgPolicy, "test", aName);
 
-  return '<!DOCTYPE HTML>\n\
-         <html>'+
-            aHead +
-           '<body>\n\
-             <img src="' + _createTestUrl('img') + '" referrerpolicy="' + aImgPolicy + '" id="image"></img>\n\
+  return (
+    "<!DOCTYPE HTML>\n\
+         <html>" +
+    aHead +
+    '<body>\n\
+             <img src="' +
+    _createTestUrl("img") +
+    '" referrerpolicy="' +
+    aImgPolicy +
+    '" id="image"></img>\n\
              <script>' +
-
-               // LOAD EVENT (of the test)
-               // fires when the img resource for the page is loaded
-               'window.addEventListener("load", function() {\n\
+    // LOAD EVENT (of the test)
+    // fires when the img resource for the page is loaded
+    'window.addEventListener("load", function() {\n\
                  parent.postMessage("childLoadComplete", "http://mochi.test:8888");\n\
                }.bind(window), false);' +
-
-             '</script>\n\
+    "</script>\n\
            </body>\n\
-         </html>';
+         </html>"
+  );
 }
 
 // Creates the following test cases for the specified referrer
 // policy combination:
 //   <img> with referrer
 function createTest(aPolicy, aImgPolicy, aName) {
-  var headString = '<head>';
+  var headString = "<head>";
   if (aPolicy) {
     headString += '<meta name="referrer" content="' + aPolicy + '">';
   }
 
-  headString += '<script></script>';
+  headString += "<script></script>";
 
   return createTestPage(headString, aImgPolicy, aName);
 }
@@ -50,249 +67,271 @@
 // testing regular load img with referrer policy
 // speculative parser should not kick in here
 function createTest2(aImgPolicy, name) {
-  return createTestPage('', aImgPolicy, name);
+  return createTestPage("", aImgPolicy, name);
 }
 
 function createTest3(aImgPolicy1, aImgPolicy2, aImgPolicy3, aName) {
-  return '<!DOCTYPE HTML>\n\
+  return (
+    '<!DOCTYPE HTML>\n\
          <html>\n\
            <body>\n\
-             <img src="' + createTestUrl(aImgPolicy1, 'test', aName + aImgPolicy1) + '" referrerpolicy="' + aImgPolicy1 + '" id="image"></img>\n\
-             <img src="' + createTestUrl(aImgPolicy2, 'test', aName + aImgPolicy2) + '" referrerpolicy="' + aImgPolicy2 + '" id="image"></img>\n\
-             <img src="' + createTestUrl(aImgPolicy3, 'test', aName + aImgPolicy3) + '" referrerpolicy="' + aImgPolicy3 + '" id="image"></img>\n\
+             <img src="' +
+    createTestUrl(aImgPolicy1, "test", aName + aImgPolicy1) +
+    '" referrerpolicy="' +
+    aImgPolicy1 +
+    '" id="image"></img>\n\
+             <img src="' +
+    createTestUrl(aImgPolicy2, "test", aName + aImgPolicy2) +
+    '" referrerpolicy="' +
+    aImgPolicy2 +
+    '" id="image"></img>\n\
+             <img src="' +
+    createTestUrl(aImgPolicy3, "test", aName + aImgPolicy3) +
+    '" referrerpolicy="' +
+    aImgPolicy3 +
+    '" id="image"></img>\n\
              <script>\n\
                var _numLoads = 0;' +
-
-               // LOAD EVENT (of the test)
-               // fires when the img resource for the page is loaded
-               'window.addEventListener("load", function() {\n\
+    // LOAD EVENT (of the test)
+    // fires when the img resource for the page is loaded
+    'window.addEventListener("load", function() {\n\
                   parent.postMessage("childLoadComplete", "http://mochi.test:8888");\n\
                }.bind(window), false);' +
-
-             '</script>\n\
+    "</script>\n\
            </body>\n\
-         </html>';
+         </html>"
+  );
 }
 
 function createTestPage2(aHead, aPolicy, aName) {
-  return '<!DOCTYPE HTML>\n\
-         <html>'+
-            aHead +
-           '<body>\n\
-             <img src="' + createTestUrl(aPolicy, "test", aName) + '" id="image"></img>\n\
+  return (
+    "<!DOCTYPE HTML>\n\
+         <html>" +
+    aHead +
+    '<body>\n\
+             <img src="' +
+    createTestUrl(aPolicy, "test", aName) +
+    '" id="image"></img>\n\
              <script>' +
-
-               // LOAD EVENT (of the test)
-               // fires when the img resource for the page is loaded
-               'window.addEventListener("load", function() {\n\
+    // LOAD EVENT (of the test)
+    // fires when the img resource for the page is loaded
+    'window.addEventListener("load", function() {\n\
                  parent.postMessage("childLoadComplete", "http://mochi.test:8888");\n\
                }.bind(window), false);' +
-
-             '</script>\n\
+    "</script>\n\
            </body>\n\
-         </html>';
+         </html>"
+  );
 }
 
 function createTestPage3(aHead, aPolicy, aName) {
-  return '<!DOCTYPE HTML>\n\
-         <html>'+
-            aHead +
-           '<body>\n\
-             <script>' +
-               'var image = new Image();\n\
-               image.src = "' + createTestUrl(aPolicy, "test", aName, "image") + '";\n\
-               image.referrerPolicy = "' + aPolicy + '";\n\
+  return (
+    "<!DOCTYPE HTML>\n\
+         <html>" +
+    aHead +
+    "<body>\n\
+             <script>" +
+    'var image = new Image();\n\
+               image.src = "' +
+    createTestUrl(aPolicy, "test", aName, "image") +
+    '";\n\
+               image.referrerPolicy = "' +
+    aPolicy +
+    '";\n\
                image.onload = function() {\n\
                  window.parent.postMessage("childLoadComplete", "http://mochi.test:8888");\n\
                }\n\
                document.body.appendChild(image);' +
-
-             '</script>\n\
+    "</script>\n\
            </body>\n\
-         </html>';
+         </html>"
+  );
 }
 
 function createTestPage4(aHead, aPolicy, aName) {
-  return '<!DOCTYPE HTML>\n\
-         <html>'+
-            aHead +
-           '<body>\n\
-             <script>' +
-               'var image = new Image();\n\
-               image.referrerPolicy = "' + aPolicy + '";\n\
-               image.src = "' + createTestUrl(aPolicy, "test", aName, "image") + '";\n\
+  return (
+    "<!DOCTYPE HTML>\n\
+         <html>" +
+    aHead +
+    "<body>\n\
+             <script>" +
+    'var image = new Image();\n\
+               image.referrerPolicy = "' +
+    aPolicy +
+    '";\n\
+               image.src = "' +
+    createTestUrl(aPolicy, "test", aName, "image") +
+    '";\n\
                image.onload = function() {\n\
                  window.parent.postMessage("childLoadComplete", "http://mochi.test:8888");\n\
                }\n\
                document.body.appendChild(image);' +
-
-             '</script>\n\
+    "</script>\n\
            </body>\n\
-         </html>';
+         </html>"
+  );
 }
 
 function createSetAttributeTest1(aPolicy, aImgPolicy, aName) {
-  var headString = '<head>';
+  var headString = "<head>";
   headString += '<meta name="referrer" content="' + aPolicy + '">';
-  headString += '<script></script>';
+  headString += "<script></script>";
 
   return createTestPage3(headString, aImgPolicy, aName);
 }
 
 function createSetAttributeTest2(aPolicy, aImgPolicy, aName) {
-  var headString = '<head>';
+  var headString = "<head>";
   headString += '<meta name="referrer" content="' + aPolicy + '">';
-  headString += '<script></script>';
+  headString += "<script></script>";
 
   return createTestPage4(headString, aImgPolicy, aName);
 }
 
-
 function createTest4(aPolicy, aName) {
-  var headString = '<head>';
+  var headString = "<head>";
   headString += '<meta name="referrer" content="' + aPolicy + '">';
-  headString += '<script></script>';
+  headString += "<script></script>";
 
   return createTestPage2(headString, aPolicy, aName);
 }
 
 function createTest5(aPolicy, aName) {
-  var headString = '<head>';
+  var headString = "<head>";
   headString += '<meta name="referrer" content="' + aPolicy + '">';
 
   return createTestPage2(headString, aPolicy, aName);
 }
 
 function handleRequest(request, response) {
-  var sharedKey = 'img_referrer_testserver.sjs';
-  var params = request.queryString.split('&');
-  var action = params[0].split('=')[1];
+  var sharedKey = "img_referrer_testserver.sjs";
+  var params = request.queryString.split("&");
+  var action = params[0].split("=")[1];
 
-  response.setHeader('Cache-Control', 'no-cache', false);
-  response.setHeader('Content-Type', 'text/html; charset=utf-8', false);
+  response.setHeader("Cache-Control", "no-cache", false);
+  response.setHeader("Content-Type", "text/html; charset=utf-8", false);
 
-  if (action === 'resetState') {
+  if (action === "resetState") {
     var state = getSharedState(sharedKey);
     state = {};
     setSharedState(sharedKey, JSON.stringify(state));
     response.write("");
     return;
   }
-  if (action === 'test') {
+  if (action === "test") {
     // ?action=test&policy=origin&name=name&content=content
-    var policy = params[1].split('=')[1];
-    var name = params[2].split('=')[1];
-    var content = params[3].split('=')[1];
+    var policy = params[1].split("=")[1];
+    var name = params[2].split("=")[1];
+    var content = params[3].split("=")[1];
     var result = getSharedState(sharedKey);
 
-    if (result === '') {
+    if (result === "") {
       result = {};
     } else {
       result = JSON.parse(result);
     }
 
-    if (!result["tests"]) {
-      result["tests"] = {};
+    if (!result.tests) {
+      result.tests = {};
     }
 
     var referrerLevel = "none";
-    var test = {}
-    if (request.hasHeader('Referer')) {
-        let referrer = request.getHeader('Referer');
+    var test = {};
+    if (request.hasHeader("Referer")) {
+      let referrer = request.getHeader("Referer");
       if (referrer.indexOf("img_referrer_testserver") > 0) {
         referrerLevel = "full";
       } else if (referrer == "http://mochi.test:8888/") {
         referrerLevel = "origin";
       }
-      test.referrer = request.getHeader('Referer');
+      test.referrer = request.getHeader("Referer");
     } else {
-      test.referrer = '';
+      test.referrer = "";
     }
     test.policy = referrerLevel;
     test.expected = policy;
 
-    result["tests"][name] = test;
+    result.tests[name] = test;
 
     setSharedState(sharedKey, JSON.stringify(result));
 
-    if (content === 'image') {
+    if (content === "image") {
       response.setHeader("Content-Type", "image/png");
       response.write(IMG_BYTES);
     }
     return;
   }
-  if (action === 'get-test-results') {
+  if (action === "get-test-results") {
     // ?action=get-result
     response.write(getSharedState(sharedKey));
     return;
   }
-  if (action === 'generate-img-policy-test') {
+  if (action === "generate-img-policy-test") {
     // ?action=generate-img-policy-test&imgPolicy=b64-encoded-string&name=name&policy=b64-encoded-string
-    var imgPolicy = unescape(params[1].split('=')[1]);
-    var name = unescape(params[2].split('=')[1]);
-    var metaPolicy = '';
+    var imgPolicy = unescape(params[1].split("=")[1]);
+    var name = unescape(params[2].split("=")[1]);
+    var metaPolicy = "";
     if (params[3]) {
-      metaPolicy = params[3].split('=')[1];
+      metaPolicy = params[3].split("=")[1];
     }
 
     response.write(createTest(metaPolicy, imgPolicy, name));
     return;
   }
-  if (action === 'generate-img-policy-test2') {
+  if (action === "generate-img-policy-test2") {
     // ?action=generate-img-policy-test2&imgPolicy=b64-encoded-string&name=name
-    var imgPolicy = unescape(params[1].split('=')[1]);
-    var name = unescape(params[2].split('=')[1]);
+    var imgPolicy = unescape(params[1].split("=")[1]);
+    var name = unescape(params[2].split("=")[1]);
 
     response.write(createTest2(imgPolicy, name));
     return;
   }
-  if (action === 'generate-img-policy-test3') {
+  if (action === "generate-img-policy-test3") {
     // ?action=generate-img-policy-test3&imgPolicy1=b64-encoded-string&imgPolicy2=b64-encoded-string&imgPolicy3=b64-encoded-string&name=name
-    var imgPolicy1 = unescape(params[1].split('=')[1]);
-    var imgPolicy2 = unescape(params[2].split('=')[1]);
-    var imgPolicy3 = unescape(params[3].split('=')[1]);
-    var name = unescape(params[4].split('=')[1]);
+    var imgPolicy1 = unescape(params[1].split("=")[1]);
+    var imgPolicy2 = unescape(params[2].split("=")[1]);
+    var imgPolicy3 = unescape(params[3].split("=")[1]);
+    var name = unescape(params[4].split("=")[1]);
 
     response.write(createTest3(imgPolicy1, imgPolicy2, imgPolicy3, name));
     return;
   }
-  if (action === 'generate-img-policy-test4') {
+  if (action === "generate-img-policy-test4") {
     // ?action=generate-img-policy-test4&imgPolicy=b64-encoded-string&name=name
-    var policy = unescape(params[1].split('=')[1]);
-    var name = unescape(params[2].split('=')[1]);
+    var policy = unescape(params[1].split("=")[1]);
+    var name = unescape(params[2].split("=")[1]);
 
     response.write(createTest4(policy, name));
     return;
   }
-  if (action === 'generate-img-policy-test5') {
+  if (action === "generate-img-policy-test5") {
     // ?action=generate-img-policy-test5&policy=b64-encoded-string&name=name
-    var policy = unescape(params[1].split('=')[1]);
-    var name = unescape(params[2].split('=')[1]);
+    var policy = unescape(params[1].split("=")[1]);
+    var name = unescape(params[2].split("=")[1]);
 
     response.write(createTest5(policy, name));
     return;
   }
 
-  if (action === 'generate-setAttribute-test1') {
+  if (action === "generate-setAttribute-test1") {
     // ?action=generate-setAttribute-test1&policy=b64-encoded-string&name=name
-    var imgPolicy = unescape(params[1].split('=')[1]);
-    var policy = unescape(params[2].split('=')[1]);
-    var name = unescape(params[3].split('=')[1]);
+    var imgPolicy = unescape(params[1].split("=")[1]);
+    var policy = unescape(params[2].split("=")[1]);
+    var name = unescape(params[3].split("=")[1]);
 
     response.write(createSetAttributeTest1(policy, imgPolicy, name));
     return;
   }
 
-  if (action === 'generate-setAttribute-test2') {
+  if (action === "generate-setAttribute-test2") {
     // ?action=generate-setAttribute-test2&policy=b64-encoded-string&name=name
-    var imgPolicy = unescape(params[1].split('=')[1]);
-    var policy = unescape(params[2].split('=')[1]);
-    var name = unescape(params[3].split('=')[1]);
+    var imgPolicy = unescape(params[1].split("=")[1]);
+    var policy = unescape(params[2].split("=")[1]);
+    var name = unescape(params[3].split("=")[1]);
 
     response.write(createSetAttributeTest2(policy, imgPolicy, name));
     return;
   }
 
-  response.write("I don't know action "+action);
-  return;
+  response.write("I don't know action " + action);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/referrer-policy/referrer_header.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/referrer-policy/referrer_header.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/referrer-policy/referrer_header.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/referrer-policy/referrer_header.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,6 +1,6 @@
-
 function handleRequest(request, response) {
   response.setHeader("Referrer-Policy", "same-origin");
-  response.write('<!DOCTYPE HTML><html><body>Loaded</body><script>parent.postMessage(document.referrer, "*");</script></html>');
+  response.write(
+    '<!DOCTYPE HTML><html><body>Loaded</body><script>parent.postMessage(document.referrer, "*");</script></html>'
+  );
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/referrer-policy/referrer_page.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/referrer-policy/referrer_page.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/referrer-policy/referrer_page.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/referrer-policy/referrer_page.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -6,7 +6,6 @@
   let metaReferrerPolicy = params.get("meta") || "";
   let showReferrer = params.has("show");
 
-
   if (referrerPolicyHeader) {
     response.setHeader("Referrer-Policy", referrerPolicyHeader, false);
   }
@@ -20,7 +19,9 @@
 
   if (showReferrer) {
     if (request.hasHeader("Referer")) {
-      resultString = `Referer Header: <a id="result">${request.getHeader("Referer")}</a>`;
+      resultString = `Referer Header: <a id="result">${request.getHeader(
+        "Referer"
+      )}</a>`;
     } else {
       resultString = `Referer Header: <a id="result"></a>`;
     }
@@ -35,5 +36,6 @@
      <body>
        ${resultString}
      </body>
-     </html>`);
+     </html>`
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/referrer-policy/referrer_testserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/referrer-policy/referrer_testserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/referrer-policy/referrer_testserver.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/referrer-policy/referrer_testserver.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,14 +1,14 @@
 /*
-* Test server for iframe, anchor, and area referrer attributes.
-* https://bugzilla.mozilla.org/show_bug.cgi?id=1175736
-* Also server for further referrer tests such as redirecting tests
-* bug 1174913, bug 1175736, bug 1184781
-*/
+ * Test server for iframe, anchor, and area referrer attributes.
+ * https://bugzilla.mozilla.org/show_bug.cgi?id=1175736
+ * Also server for further referrer tests such as redirecting tests
+ * bug 1174913, bug 1175736, bug 1184781
+ */
 
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 const SJS = "referrer_testserver.sjs?";
 const SJS_PATH = "/tests/dom/security/test/referrer-policy/";
-const BASE_ORIGIN = "example.com"
+const BASE_ORIGIN = "example.com";
 const BASE_URL = BASE_ORIGIN + SJS_PATH + SJS;
 const SHARED_KEY = SJS;
 const SAME_ORIGIN = "mochi.test:8888" + SJS_PATH + SJS;
@@ -16,29 +16,57 @@
 
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
-function createTestUrl(aPolicy, aAction, aName, aType, aSchemeFrom, aSchemeTo,
-                       crossOrigin, referrerPolicyHeader) {
+function createTestUrl(
+  aPolicy,
+  aAction,
+  aName,
+  aType,
+  aSchemeFrom,
+  aSchemeTo,
+  crossOrigin,
+  referrerPolicyHeader
+) {
   var schemeTo = aSchemeTo || "http";
   var schemeFrom = aSchemeFrom || "http";
   var rpHeader = referrerPolicyHeader || "";
   var url = schemeTo + "://";
-  url += (crossOrigin ? CROSS_ORIGIN_URL : BASE_URL);
+  url += crossOrigin ? CROSS_ORIGIN_URL : BASE_URL;
   url +=
-         "ACTION=" + aAction + "&" +
-         "policy=" + aPolicy + "&" +
-         "NAME=" + aName + "&" +
-         "type=" + aType + "&" +
-         "RP_HEADER=" + rpHeader + "&" +
-         "SCHEME_FROM=" + schemeFrom;
+    "ACTION=" +
+    aAction +
+    "&" +
+    "policy=" +
+    aPolicy +
+    "&" +
+    "NAME=" +
+    aName +
+    "&" +
+    "type=" +
+    aType +
+    "&" +
+    "RP_HEADER=" +
+    rpHeader +
+    "&" +
+    "SCHEME_FROM=" +
+    schemeFrom;
   return url;
-  }
+}
 
 // test page using iframe referrer attribute
 // if aParams are set this creates a test where the iframe url is a redirect
-function createIframeTestPageUsingRefferer(aMetaPolicy, aAttributePolicy, aNewAttributePolicy, aName, aParams,
-                                           aSchemeFrom, aSchemeTo, aChangingMethod) {
+function createIframeTestPageUsingRefferer(
+  aMetaPolicy,
+  aAttributePolicy,
+  aNewAttributePolicy,
+  aName,
+  aParams,
+  aSchemeFrom,
+  aSchemeTo,
+  aChangingMethod
+) {
   var metaString = "";
   if (aMetaPolicy) {
     metaString = `<meta name="referrer" content="${aMetaPolicy}">`;
@@ -49,14 +77,23 @@
   } else if (aChangingMethod === "property") {
     changeString = `document.getElementById("myframe").referrerPolicy = "${aNewAttributePolicy}"`;
   }
-  var iFrameString = `<iframe src="" id="myframe" ${aAttributePolicy ? ` referrerpolicy="${aAttributePolicy}"` : ""}>iframe</iframe>`;
+  var iFrameString = `<iframe src="" id="myframe" ${
+    aAttributePolicy ? ` referrerpolicy="${aAttributePolicy}"` : ""
+  }>iframe</iframe>`;
   var iframeUrl = "";
   if (aParams) {
     aParams.delete("ACTION");
     aParams.append("ACTION", "redirectIframe");
     iframeUrl = "http://" + CROSS_ORIGIN_URL + aParams.toString();
   } else {
-    iframeUrl = createTestUrl(aAttributePolicy, "test", aName, "iframe", aSchemeFrom, aSchemeTo);
+    iframeUrl = createTestUrl(
+      aAttributePolicy,
+      "test",
+      aName,
+      "iframe",
+      aSchemeFrom,
+      aSchemeTo
+    );
   }
 
   return `<!DOCTYPE HTML>
@@ -79,20 +116,62 @@
            </html>`;
 }
 
-function buildAnchorString(aMetaPolicy, aReferrerPolicy, aName, aRelString, aSchemeFrom, aSchemeTo){
+function buildAnchorString(
+  aMetaPolicy,
+  aReferrerPolicy,
+  aName,
+  aRelString,
+  aSchemeFrom,
+  aSchemeTo
+) {
   if (aReferrerPolicy) {
-    return `<a href="${createTestUrl(aReferrerPolicy, 'test', aName, 'link', aSchemeFrom, aSchemeTo)}" referrerpolicy="${aReferrerPolicy}" id="link" ${aRelString}>${aReferrerPolicy}</a>`;
-  }
-  return `<a href="${createTestUrl(aMetaPolicy, 'test', aName, 'link', aSchemeFrom, aSchemeTo)}" id="link" ${aRelString}>link</a>`;
+    return `<a href="${createTestUrl(
+      aReferrerPolicy,
+      "test",
+      aName,
+      "link",
+      aSchemeFrom,
+      aSchemeTo
+    )}" referrerpolicy="${aReferrerPolicy}" id="link" ${aRelString}>${aReferrerPolicy}</a>`;
+  }
+  return `<a href="${createTestUrl(
+    aMetaPolicy,
+    "test",
+    aName,
+    "link",
+    aSchemeFrom,
+    aSchemeTo
+  )}" id="link" ${aRelString}>link</a>`;
 }
 
-function buildAreaString(aMetaPolicy, aReferrerPolicy, aName, aRelString, aSchemeFrom, aSchemeTo){
+function buildAreaString(
+  aMetaPolicy,
+  aReferrerPolicy,
+  aName,
+  aRelString,
+  aSchemeFrom,
+  aSchemeTo
+) {
   var result = `<img src="file_mozfiledataurl_img.jpg" alt="image" usemap="#imageMap">`;
   result += `<map name="imageMap">`;
   if (aReferrerPolicy) {
-    result += `<area shape="circle" coords="1,1,1" href="${createTestUrl(aReferrerPolicy, 'test', aName, 'link', aSchemeFrom, aSchemeTo)}" alt="theArea" referrerpolicy="${aReferrerPolicy}" id="link" ${aRelString}>`;
+    result += `<area shape="circle" coords="1,1,1" href="${createTestUrl(
+      aReferrerPolicy,
+      "test",
+      aName,
+      "link",
+      aSchemeFrom,
+      aSchemeTo
+    )}" alt="theArea" referrerpolicy="${aReferrerPolicy}" id="link" ${aRelString}>`;
   } else {
-    result += `<area shape="circle" coords="1,1,1" href="${createTestUrl(aMetaPolicy, 'test', aName, 'link', aSchemeFrom, aSchemeTo)}" alt="theArea" id="link" ${aRelString}>`;
+    result += `<area shape="circle" coords="1,1,1" href="${createTestUrl(
+      aMetaPolicy,
+      "test",
+      aName,
+      "link",
+      aSchemeFrom,
+      aSchemeTo
+    )}" alt="theArea" id="link" ${aRelString}>`;
   }
   result += `</map>`;
 
@@ -100,7 +179,17 @@
 }
 
 // test page using anchor or area referrer attribute
-function createAETestPageUsingRefferer(aMetaPolicy, aAttributePolicy, aNewAttributePolicy, aName, aRel, aStringBuilder, aSchemeFrom, aSchemeTo, aChangingMethod) {
+function createAETestPageUsingRefferer(
+  aMetaPolicy,
+  aAttributePolicy,
+  aNewAttributePolicy,
+  aName,
+  aRel,
+  aStringBuilder,
+  aSchemeFrom,
+  aSchemeTo,
+  aChangingMethod
+) {
   var metaString = "";
   if (aMetaPolicy) {
     metaString = `<head><meta name="referrer" content="${aMetaPolicy}"></head>`;
@@ -115,7 +204,14 @@
   if (aRel) {
     relString = `rel="noreferrer"`;
   }
-  var elementString = aStringBuilder(aMetaPolicy, aAttributePolicy, aName, relString, aSchemeFrom, aSchemeTo);
+  var elementString = aStringBuilder(
+    aMetaPolicy,
+    aAttributePolicy,
+    aName,
+    relString,
+    aSchemeFrom,
+    aSchemeTo
+  );
 
   return `<!DOCTYPE HTML>
            <html>
@@ -133,13 +229,26 @@
 }
 
 // test page using anchor target=_blank rel=noopener
-function createTargetBlankRefferer(aMetaPolicy, aName, aSchemeFrom,
-                                   aSchemeTo, aRpHeader) {
+function createTargetBlankRefferer(
+  aMetaPolicy,
+  aName,
+  aSchemeFrom,
+  aSchemeTo,
+  aRpHeader
+) {
   var metaString = "";
   if (aMetaPolicy) {
     metaString = `<head><meta name="referrer" content="${aMetaPolicy}"></head>`;
   }
-  var elementString = `<a href="${createTestUrl(aMetaPolicy, 'test', aName, 'link', aSchemeFrom, aSchemeTo, aRpHeader)}" target=_blank rel="noopener" id="link">link</a>`;
+  var elementString = `<a href="${createTestUrl(
+    aMetaPolicy,
+    "test",
+    aName,
+    "link",
+    aSchemeFrom,
+    aSchemeTo,
+    aRpHeader
+  )}" target=_blank rel="noopener" id="link">link</a>`;
 
   return `<!DOCTYPE HTML>
            <html>
@@ -161,7 +270,9 @@
 function createRedirectImgTestCase(aParams, aAttributePolicy) {
   var metaString = "";
   if (aParams.has("META_POLICY")) {
-    metaString = `<meta name="referrer" content="${aParams.get('META_POLICY')}">`;
+    metaString = `<meta name="referrer" content="${aParams.get(
+      "META_POLICY"
+    )}">`;
   }
   aParams.delete("ACTION");
   aParams.append("ACTION", "redirectImg");
@@ -175,7 +286,9 @@
           <title>Test referrer policies on redirect (img)</title>
           </head>
           <body>
-          <img id="testImg" src="${imgUrl}" ${aAttributePolicy ? ` referrerpolicy="${aAttributePolicy}"` : ""}>
+          <img id="testImg" src="${imgUrl}" ${
+    aAttributePolicy ? ` referrerpolicy="${aAttributePolicy}"` : ""
+  }>
           <script>
             window.addEventListener("load", function() {
               parent.postMessage("childLoadComplete", "http://mochi.test:8888");
@@ -186,7 +299,17 @@
 }
 
 // test page using link referrer attribute
-function createLinkPageUsingRefferer(aMetaPolicy, aAttributePolicy, aNewAttributePolicy, aName, aRel, aStringBuilder, aSchemeFrom, aSchemeTo, aTestType) {
+function createLinkPageUsingRefferer(
+  aMetaPolicy,
+  aAttributePolicy,
+  aNewAttributePolicy,
+  aName,
+  aRel,
+  aStringBuilder,
+  aSchemeFrom,
+  aSchemeTo,
+  aTestType
+) {
   var metaString = "";
   if (aMetaPolicy) {
     metaString = `<meta name="referrer" content="${aMetaPolicy}">`;
@@ -194,16 +317,37 @@
 
   var changeString = "";
   var policy = aAttributePolicy ? aAttributePolicy : aMetaPolicy;
-  var elementString = aStringBuilder(policy, aName, aRel, aSchemeFrom, aSchemeTo, aTestType);
+  var elementString = aStringBuilder(
+    policy,
+    aName,
+    aRel,
+    aSchemeFrom,
+    aSchemeTo,
+    aTestType
+  );
 
   if (aTestType === "setAttribute") {
     changeString = `var link = document.getElementById("test_link");
                     link.setAttribute("referrerpolicy", "${aNewAttributePolicy}");
-                    link.href = "${createTestUrl(policy, "test", aName, "link_element_" + aRel, aSchemeFrom, aSchemeTo)}";`;
+                    link.href = "${createTestUrl(
+                      policy,
+                      "test",
+                      aName,
+                      "link_element_" + aRel,
+                      aSchemeFrom,
+                      aSchemeTo
+                    )}";`;
   } else if (aTestType === "property") {
     changeString = `var link = document.getElementById("test_link");
                     link.referrerPolicy = "${aNewAttributePolicy}";
-                    link.href = "${createTestUrl(policy, "test", aName, "link_element_" + aRel, aSchemeFrom, aSchemeTo)}";`;
+                    link.href = "${createTestUrl(
+                      policy,
+                      "test",
+                      aName,
+                      "link_element_" + aRel,
+                      aSchemeFrom,
+                      aSchemeTo
+                    )}";`;
   }
 
   return `<!DOCTYPE HTML>
@@ -220,8 +364,21 @@
            </html>`;
 }
 
-function createFetchUserControlRPTestCase(aName, aSchemeFrom, aSchemeTo, crossOrigin) {
-  var srcUrl = createTestUrl("", "test", aName, "fetch", aSchemeFrom, aSchemeTo, crossOrigin);
+function createFetchUserControlRPTestCase(
+  aName,
+  aSchemeFrom,
+  aSchemeTo,
+  crossOrigin
+) {
+  var srcUrl = createTestUrl(
+    "",
+    "test",
+    aName,
+    "fetch",
+    aSchemeFrom,
+    aSchemeTo,
+    crossOrigin
+  );
 
   return `<!DOCTYPE HTML>
           <html>
@@ -239,12 +396,19 @@
           </html>`;
 }
 
-function buildLinkString(aPolicy, aName, aRel, aSchemeFrom, aSchemeTo, aTestType) {
-  var href = '';
-  var onChildComplete = `window.parent.postMessage("childLoadComplete", "http://mochi.test:8888");`
-  var policy = '';
-  var asString = '';
-  var relString = '';
+function buildLinkString(
+  aPolicy,
+  aName,
+  aRel,
+  aSchemeFrom,
+  aSchemeTo,
+  aTestType
+) {
+  var href = "";
+  var onChildComplete = `window.parent.postMessage("childLoadComplete", "http://mochi.test:8888");`;
+  var policy = "";
+  var asString = "";
+  var relString = "";
 
   if (aRel) {
     relString = `rel="${aRel}"`;
@@ -259,7 +423,14 @@
   }
 
   if (!aTestType) {
-    href = `href=${createTestUrl(aPolicy, "test", aName, "link_element_" + aRel, aSchemeFrom, aSchemeTo)}`;
+    href = `href=${createTestUrl(
+      aPolicy,
+      "test",
+      aName,
+      "link_element_" + aRel,
+      aSchemeFrom,
+      aSchemeTo
+    )}`;
   }
 
   return `<link ${relString} ${href} ${policy} ${asString} id="test_link" onload='${onChildComplete}' onerror='${onChildComplete}'>`;
@@ -291,25 +462,35 @@
     return;
   }
   if (action === "redirect") {
-    response.write('<script>parent.postMessage("childLoadComplete", "http://mochi.test:8888");</script>');
+    response.write(
+      '<script>parent.postMessage("childLoadComplete", "http://mochi.test:8888");</script>'
+    );
     return;
   }
-  if (action === "redirectImg"){
+  if (action === "redirectImg") {
     params.delete("ACTION");
     params.append("ACTION", "test");
     params.append("type", "img");
     // 302 found, 301 Moved Permanently, 303 See Other, 307 Temporary Redirect
     response.setStatusLine("1.1", 302, "found");
-    response.setHeader("Location",  "http://" + CROSS_ORIGIN_URL + params.toString(), false);
+    response.setHeader(
+      "Location",
+      "http://" + CROSS_ORIGIN_URL + params.toString(),
+      false
+    );
     return;
   }
-  if (action === "redirectIframe"){
+  if (action === "redirectIframe") {
     params.delete("ACTION");
     params.append("ACTION", "test");
     params.append("type", "iframe");
     // 302 found, 301 Moved Permanently, 303 See Other, 307 Temporary Redirect
     response.setStatusLine("1.1", 302, "found");
-    response.setHeader("Location",  "http://" + CROSS_ORIGIN_URL + params.toString(), false);
+    response.setHeader(
+      "Location",
+      "http://" + CROSS_ORIGIN_URL + params.toString(),
+      false
+    );
     return;
   }
   if (action === "test") {
@@ -322,7 +503,7 @@
     result = result ? JSON.parse(result) : {};
 
     var referrerLevel = "none";
-    var test = {}
+    var test = {};
     if (request.hasHeader("Referer")) {
       var referrer = request.getHeader("Referer");
       if (referrer.indexOf("referrer_testserver") > 0) {
@@ -375,8 +556,20 @@
   var name = params.get("NAME");
 
   // anchor & area
-  var _getPage = createAETestPageUsingRefferer.bind(null, metaPolicy, attributePolicy, newAttributePolicy, name, rel);
-  var _getAnchorPage = _getPage.bind(null, buildAnchorString, schemeFrom, schemeTo);
+  var _getPage = createAETestPageUsingRefferer.bind(
+    null,
+    metaPolicy,
+    attributePolicy,
+    newAttributePolicy,
+    name,
+    rel
+  );
+  var _getAnchorPage = _getPage.bind(
+    null,
+    buildAnchorString,
+    schemeFrom,
+    schemeTo
+  );
   var _getAreaPage = _getPage.bind(null, buildAreaString, schemeFrom, schemeTo);
 
   // aMetaPolicy, aAttributePolicy, aNewAttributePolicy, aName, aChangingMethod, aStringBuilder
@@ -405,13 +598,29 @@
     return;
   }
   if (action === "generate-anchor-target-blank-policy-test") {
-    response.write(createTargetBlankRefferer(metaPolicy, name, schemeFrom, schemeTo, referrerPolicyHeader));
+    response.write(
+      createTargetBlankRefferer(
+        metaPolicy,
+        name,
+        schemeFrom,
+        schemeTo,
+        referrerPolicyHeader
+      )
+    );
     return;
   }
 
   // iframe
-  _getPage = createIframeTestPageUsingRefferer.bind(null, metaPolicy, attributePolicy, newAttributePolicy, name, "",
-                                                    schemeFrom, schemeTo);
+  _getPage = createIframeTestPageUsingRefferer.bind(
+    null,
+    metaPolicy,
+    attributePolicy,
+    newAttributePolicy,
+    name,
+    "",
+    schemeFrom,
+    schemeTo
+  );
 
   // aMetaPolicy, aAttributePolicy, aNewAttributePolicy, aName, aChangingMethod
   if (action === "generate-iframe-policy-test") {
@@ -433,12 +642,28 @@
     return;
   }
   if (action === "generate-iframe-redirect-policy-test") {
-    response.write(createIframeTestPageUsingRefferer(metaPolicy, attributePolicy, newAttributePolicy, name, params,
-                                                     schemeFrom, schemeTo));
+    response.write(
+      createIframeTestPageUsingRefferer(
+        metaPolicy,
+        attributePolicy,
+        newAttributePolicy,
+        name,
+        params,
+        schemeFrom,
+        schemeTo
+      )
+    );
     return;
   }
 
-  var _getPage = createLinkPageUsingRefferer.bind(null, metaPolicy, attributePolicy, newAttributePolicy, name, rel);
+  var _getPage = createLinkPageUsingRefferer.bind(
+    null,
+    metaPolicy,
+    attributePolicy,
+    newAttributePolicy,
+    name,
+    rel
+  );
   var _getLinkPage = _getPage.bind(null, buildLinkString, schemeFrom, schemeTo);
 
   // link
@@ -456,10 +681,11 @@
   }
 
   if (action === "generate-fetch-user-control-policy-test") {
-    response.write(createFetchUserControlRPTestCase(name, schemeFrom, schemeTo, crossOrigin));
+    response.write(
+      createFetchUserControlRPTestCase(name, schemeFrom, schemeTo, crossOrigin)
+    );
     return;
   }
 
   response.write("I don't know action " + action);
-  return;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/sec-fetch/file_no_cache.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/sec-fetch/file_no_cache.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/sec-fetch/file_no_cache.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/sec-fetch/file_no_cache.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,4 +1,4 @@
-const MESSAGE_PAGE = function (msg) {
+const MESSAGE_PAGE = function(msg) {
   return `
 <html>
 <script type="text/javascript">
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/sec-fetch/file_redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/sec-fetch/file_redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/security/test/sec-fetch/file_redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/security/test/sec-fetch/file_redirect.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,4 +1,4 @@
-const SITE_META_REDIRECT=`
+const SITE_META_REDIRECT = `
 <html>
   <head>
     <meta http-equiv="refresh" content="0; url='https://example.com/tests/dom/security/test/sec-fetch/file_redirect.sjs?redirect302'">
@@ -9,7 +9,8 @@
 </html>
 `;
 
-const REDIRECT_302 = "https://example.com/tests/dom/security/test/sec-fetch/file_redirect.sjs?pageC"
+const REDIRECT_302 =
+  "https://example.com/tests/dom/security/test/sec-fetch/file_redirect.sjs?pageC";
 
 function handleRequest(req, res) {
   // avoid confusing cache behaviour
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/download_canceled/server-stream-download.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/download_canceled/server-stream-download.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/download_canceled/server-stream-download.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/download_canceled/server-stream-download.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -5,15 +5,18 @@
 Cu.import("resource://gre/modules/NetUtil.jsm");
 
 // stolen from file_blocked_script.sjs
-function setGlobalState(data, key)
-{
-  x = { data: data, QueryInterface: function(iid) { return this } };
+function setGlobalState(data, key) {
+  x = {
+    data,
+    QueryInterface(iid) {
+      return this;
+    },
+  };
   x.wrappedJSObject = x;
   setObjectState(key, x);
 }
 
-function getGlobalState(key)
-{
+function getGlobalState(key) {
   var data;
   getObjectState(key, function(x) {
     data = x && x.wrappedJSObject.data;
@@ -63,13 +66,16 @@
 
   // Create some payload to send.
   let strChunk =
-    'Static routes are the future of ServiceWorkers! So say we all!\n';
+    "Static routes are the future of ServiceWorkers! So say we all!\n";
   while (strChunk.length < 1024) {
     strChunk += strChunk;
   }
 
   response.setHeader("Content-Disposition", `attachment; filename="${name}"`);
-  response.setHeader("Content-Type", `application/octet-stream; name="${name}"`);
+  response.setHeader(
+    "Content-Type",
+    `application/octet-stream; name="${name}"`
+  );
   response.setHeader("Content-Length", `${strChunk.length * MAX_TICK_COUNT}`);
   response.setStatusLine(request.httpVersion, 200, "Found");
 
@@ -101,7 +107,7 @@
         return;
       }
       response.write(strChunk);
-    } catch(e) {
+    } catch (e) {
       closeStream("canceled", e.message);
     }
   }
@@ -110,12 +116,17 @@
 
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 function handleRequest(request, response) {
-  dump("server-stream-download.js: processing request for " + request.path +
-       "?" + request.queryString + "\n");
+  dump(
+    "server-stream-download.js: processing request for " +
+      request.path +
+      "?" +
+      request.queryString +
+      "\n"
+  );
   const query = new URLSearchParams(request.queryString);
   if (query.has("monitor")) {
     handleMonitorRequest(request, response);
   } else {
     handleStreamRequest(request, response);
   }
-}
\ No newline at end of file
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/deliver-gzip.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/deliver-gzip.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/deliver-gzip.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/deliver-gzip.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,16 +1,20 @@
 function handleRequest(request, response) {
   // The string "hello" repeated 10 times followed by newline. Compressed using gzip.
+  /* eslint-disable prettier/prettier */
   var bytes = [0x1f, 0x8b, 0x08, 0x08, 0x4d, 0xe2, 0xf9, 0x54, 0x00, 0x03, 0x68,
                0x65, 0x6c, 0x6c, 0x6f, 0x00, 0xcb, 0x48, 0xcd, 0xc9, 0xc9, 0xcf,
                0x20, 0x85, 0xe0, 0x02, 0x00, 0xf5, 0x4b, 0x38, 0xcf, 0x33, 0x00,
                0x00, 0x00];
 
+  /* eslint-enable prettier/prettier */
+
   response.setHeader("Content-Encoding", "gzip", false);
   response.setHeader("Content-Length", "" + bytes.length, false);
   response.setHeader("Content-Type", "text/plain", false);
 
-  var bos = Components.classes["@mozilla.org/binaryoutputstream;1"]
-      .createInstance(Components.interfaces.nsIBinaryOutputStream);
+  var bos = Components.classes[
+    "@mozilla.org/binaryoutputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryOutputStream);
   bos.setOutputStream(response.bodyOutputStream);
 
   bos.writeByteArray(bytes);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/interrupt.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/interrupt.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/interrupt.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/interrupt.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -5,7 +5,7 @@
   }
 
   response.seizePower();
-  response.write("HTTP/1.1 200 OK\r\n")
+  response.write("HTTP/1.1 200 OK\r\n");
   var count = 10;
   response.write("Content-Length: " + body.length * count + "\r\n");
   response.write("Content-Type: text/plain; charset=utf-8\r\n");
@@ -16,5 +16,5 @@
     response.write(body);
   }
 
-  throw Components.results.NS_BINDING_ABORTED;
+  throw Components.Exception("", Components.results.NS_BINDING_ABORTED);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/origin/https/index-https.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/origin/https/index-https.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/origin/https/index-https.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/origin/https/index-https.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,4 +1,8 @@
 function handleRequest(request, response) {
   response.setStatusLine(null, 308, "Permanent Redirect");
-  response.setHeader("Location", "https://example.org/tests/dom/serviceworkers/test/fetch/origin/https/realindex.html", false);
+  response.setHeader(
+    "Location",
+    "https://example.org/tests/dom/serviceworkers/test/fetch/origin/https/realindex.html",
+    false
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/origin/index.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/origin/index.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/origin/index.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/origin/index.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,4 +1,8 @@
 function handleRequest(request, response) {
   response.setStatusLine(null, 308, "Permanent Redirect");
-  response.setHeader("Location", "http://example.org/tests/dom/serviceworkers/test/fetch/origin/realindex.html", false);
+  response.setHeader(
+    "Location",
+    "http://example.org/tests/dom/serviceworkers/test/fetch/origin/realindex.html",
+    false
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/origin/index-to-https.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/origin/index-to-https.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/origin/index-to-https.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/origin/index-to-https.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,4 +1,8 @@
 function handleRequest(request, response) {
   response.setStatusLine(null, 308, "Permanent Redirect");
-  response.setHeader("Location", "https://example.org/tests/dom/serviceworkers/test/fetch/origin/realindex.html", false);
+  response.setHeader(
+    "Location",
+    "https://example.org/tests/dom/serviceworkers/test/fetch/origin/realindex.html",
+    false
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/requesturl/redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/requesturl/redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/fetch/requesturl/redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/fetch/requesturl/redirect.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,4 +1,8 @@
 function handleRequest(request, response) {
   response.setStatusLine(null, 308, "Permanent Redirect");
-  response.setHeader("Location", "http://example.org/tests/dom/serviceworkers/test/fetch/requesturl/secret.html", false);
+  response.setHeader(
+    "Location",
+    "http://example.org/tests/dom/serviceworkers/test/fetch/requesturl/secret.html",
+    false
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/importscript.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/importscript.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/importscript.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/importscript.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,10 +1,10 @@
 function handleRequest(request, response) {
-  if (request.queryString == 'clearcounter') {
-    setState('counter', '');
-  } else if (!getState('counter')) {
+  if (request.queryString == "clearcounter") {
+    setState("counter", "");
+  } else if (!getState("counter")) {
     response.setHeader("Content-Type", "application/javascript", false);
     response.write("callByScript();");
-    setState('counter', '1');
+    setState("counter", "1");
   } else {
     response.write("no cache no party!");
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/isolated/multi-e10s-update/server_multie10s_update.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/isolated/multi-e10s-update/server_multie10s_update.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/isolated/multi-e10s-update/server_multie10s_update.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/isolated/multi-e10s-update/server_multie10s_update.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,14 +1,16 @@
-
 // stolen from file_blocked_script.sjs
-function setGlobalState(data, key)
-{
-  x = { data: data, QueryInterface: function(iid) { return this } };
+function setGlobalState(data, key) {
+  x = {
+    data,
+    QueryInterface(iid) {
+      return this;
+    },
+  };
   x.wrappedJSObject = x;
   setObjectState(key, x);
 }
 
-function getGlobalState(key)
-{
+function getGlobalState(key) {
   var data;
   getObjectState(key, function(x) {
     data = x && x.wrappedJSObject.data;
@@ -16,8 +18,7 @@
   return data;
 }
 
-function completeBlockingRequest(response)
-{
+function completeBlockingRequest(response) {
   response.write("42");
   response.finish();
 }
@@ -35,8 +36,7 @@
  * .sjs is fetched.  This allows us to avoid using a timer, which slows down the
  * tests and is brittle under slow hardware.
  */
-function handleBlockingRequest(request, response)
-{
+function handleBlockingRequest(request, response) {
   response.processAsync();
   response.setHeader("Content-Type", "application/javascript", false);
 
@@ -58,8 +58,7 @@
   }
 }
 
-function handleReleaseRequest(request, response)
-{
+function handleReleaseRequest(request, response) {
   const blockingResponse = getGlobalState(BLOCKING_KEY);
   if (blockingResponse) {
     completeBlockingRequest(blockingResponse);
@@ -72,20 +71,24 @@
   response.write(JSON.stringify({ released: true }));
 }
 
-function handleCountRequest(request, response)
-{
+function handleCountRequest(request, response) {
   const count = getGlobalState(COUNT_KEY) || 0;
   // --verify requires that we clear this so the test can be re-run.
   setGlobalState(0, COUNT_KEY);
 
   response.setHeader("Content-Type", "application/json", false);
-  response.write(JSON.stringify({ count: count }));
+  response.write(JSON.stringify({ count }));
 }
 
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 function handleRequest(request, response) {
-  dump("server_multie10s_update.sjs: processing request for " + request.path +
-       "?" + request.queryString + "\n");
+  dump(
+    "server_multie10s_update.sjs: processing request for " +
+      request.path +
+      "?" +
+      request.queryString +
+      "\n"
+  );
   const query = new URLSearchParams(request.queryString);
   if (query.has("release")) {
     handleReleaseRequest(request, response);
@@ -94,4 +97,4 @@
   } else {
     handleBlockingRequest(request, response);
   }
-}
\ No newline at end of file
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/redirect_post.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/redirect_post.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/redirect_post.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/redirect_post.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,35 +1,39 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
   var bodyBytes = [];
-  while ((bodyAvail = bodyStream.available()) > 0)
+  while ((bodyAvail = bodyStream.available()) > 0) {
     Array.prototype.push.apply(bodyBytes, bodyStream.readByteArray(bodyAvail));
+  }
 
   var body = decodeURIComponent(
-    escape(String.fromCharCode.apply(null, bodyBytes)));
+    escape(String.fromCharCode.apply(null, bodyBytes))
+  );
 
   var currentHop = query.hop ? parseInt(query.hop) : 0;
 
   var obj = JSON.parse(body);
   if (currentHop < obj.hops) {
-    var newURL = '/tests/dom/serviceworkers/test/redirect_post.sjs?hop=' +
-                 (1 + currentHop);
-    response.setStatusLine(null, 307, 'redirect');
-    response.setHeader('Location', newURL);
+    var newURL =
+      "/tests/dom/serviceworkers/test/redirect_post.sjs?hop=" +
+      (1 + currentHop);
+    response.setStatusLine(null, 307, "redirect");
+    response.setHeader("Location", newURL);
     return;
   }
 
-  response.setHeader('Content-Type', 'application/json');
+  response.setHeader("Content-Type", "application/json");
   response.write(body);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/redirect_serviceworker.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/redirect_serviceworker.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/redirect_serviceworker.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/redirect_serviceworker.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,4 +1,7 @@
 function handleRequest(request, response) {
   response.setStatusLine("1.1", 302, "Found");
-  response.setHeader("Location", "http://mochi.test:8888/tests/dom/serviceworkers/test/worker.js");
+  response.setHeader(
+    "Location",
+    "http://mochi.test:8888/tests/dom/serviceworkers/test/worker.js"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/redirect.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
   response.setHeader("Location", request.queryString, false);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/self_update_worker.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/self_update_worker.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/self_update_worker.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/self_update_worker.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -17,8 +17,8 @@
 `;
 
 function handleRequest(request, response) {
-  if (request.queryString == 'clearcounter') {
-    setState('count', "1");
+  if (request.queryString == "clearcounter") {
+    setState("count", "1");
     response.write("ok");
     return;
   }
@@ -40,4 +40,3 @@
   response.write(worker);
   setState("count", "" + (count + 1));
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/server_file_upload.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/server_file_upload.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/server_file_upload.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/server_file_upload.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,16 +1,21 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
-const BinaryOutputStream = CC("@mozilla.org/binaryoutputstream;1",
-                              "nsIBinaryOutputStream",
-                              "setOutputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
+const BinaryOutputStream = CC(
+  "@mozilla.org/binaryoutputstream;1",
+  "nsIBinaryOutputStream",
+  "setOutputStream"
+);
 
 function handleRequest(request, response) {
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
   var bodyBytes = [];
-  while ((bodyAvail = bodyStream.available()) > 0)
+  while ((bodyAvail = bodyStream.available()) > 0) {
     Array.prototype.push.apply(bodyBytes, bodyStream.readByteArray(bodyAvail));
+  }
 
   var bos = new BinaryOutputStream(response.bodyOutputStream);
   bos.writeByteArray(bodyBytes, bodyBytes.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/update_worker.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/update_worker.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/serviceworkers/test/update_worker.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/serviceworkers/test/update_worker.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -7,7 +7,6 @@
   // This header is necessary for making this script able to be loaded.
   response.setHeader("Content-Type", "application/javascript");
 
-  var body = '/* ' + Date.now() + ' */';
+  var body = "/* " + Date.now() + " */";
   response.write(body);
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/svg/test/object-delayed-intrinsic-size.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/svg/test/object-delayed-intrinsic-size.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/svg/test/object-delayed-intrinsic-size.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/svg/test/object-delayed-intrinsic-size.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,8 +1,6 @@
-
 var timer = null;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
 
   response.setStatusLine(null, 200, "OK");
@@ -12,13 +10,17 @@
   // while waiting for the rest of the document to load:
   response.bodyOutputStream.write("\n", 1);
 
-  timer = Components.classes["@mozilla.org/timer;1"]
-                    .createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function()
-  {
-    var body = "<svg xmlns='http://www.w3.org/2000/svg' width='70' height='0'></svg>";
-    response.bodyOutputStream.write(body, body.length);
-    response.finish();
-  }, 1000 /* milliseconds */, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
+      var body =
+        "<svg xmlns='http://www.w3.org/2000/svg' width='70' height='0'></svg>";
+      response.bodyOutputStream.write(body, body.length);
+      response.finish();
+    },
+    1000 /* milliseconds */,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/system/IOUtils.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/system/IOUtils.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/system/IOUtils.cpp	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/system/IOUtils.cpp	2021-10-20 19:28:19.000000000 +0000
@@ -1597,14 +1597,20 @@
 RefPtr<IOUtils::IOPromise<OkT>> IOUtils::EventQueue::Dispatch(Fn aFunc) {
   MOZ_RELEASE_ASSERT(mBackgroundEventTarget);
 
-  return InvokeAsync(
-      mBackgroundEventTarget, __func__, [func = std::move(aFunc)]() {
-        Result<OkT, IOError> result = func();
-        if (result.isErr()) {
-          return IOPromise<OkT>::CreateAndReject(result.unwrapErr(), __func__);
-        }
-        return IOPromise<OkT>::CreateAndResolve(result.unwrap(), __func__);
-      });
+  auto promise =
+      MakeRefPtr<typename IOUtils::IOPromise<OkT>::Private>(__func__);
+  mBackgroundEventTarget->Dispatch(
+      NS_NewRunnableFunction("IOUtils::EventQueue::Dispatch",
+                             [promise, func = std::move(aFunc)] {
+                               Result<OkT, IOError> result = func();
+                               if (result.isErr()) {
+                                 promise->Reject(result.unwrapErr(), __func__);
+                               } else {
+                                 promise->Resolve(result.unwrap(), __func__);
+                               }
+                             }),
+      NS_DISPATCH_EVENT_MAY_BLOCK);
+  return promise;
 };
 
 Result<already_AddRefed<nsIAsyncShutdownClient>, nsresult>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/system/tests/test_constants.xhtml firefox-trunk-95.0~a1~hg20211020r596404/dom/system/tests/test_constants.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/system/tests/test_constants.xhtml	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/system/tests/test_constants.xhtml	2021-10-20 19:28:19.000000000 +0000
@@ -33,17 +33,17 @@
 // Test that OS.Constants.libc is defined
 function test_libc() {
   isnot(null, OS.Constants.libc, "OS.Constants.libc is defined");
-  is(0001, OS.Constants.libc.S_IXOTH, "OS.Constants.libc.S_IXOTH is defined");
-  is(0002, OS.Constants.libc.S_IWOTH, "OS.Constants.libc.S_IWOTH is defined");
-  is(0007, OS.Constants.libc.S_IRWXO, "OS.Constants.libc.S_IRWXO is defined");
-  is(0010, OS.Constants.libc.S_IXGRP, "OS.Constants.libc.S_IXGRP is defined");
-  is(0020, OS.Constants.libc.S_IWGRP, "OS.Constants.libc.S_IWGRP is defined");
-  is(0040, OS.Constants.libc.S_IRGRP, "OS.Constants.libc.S_IRGRP is defined");
-  is(0070, OS.Constants.libc.S_IRWXG, "OS.Constants.libc.S_IRWXG is defined");
-  is(0100, OS.Constants.libc.S_IXUSR, "OS.Constants.libc.S_IXUSR is defined");
-  is(0200, OS.Constants.libc.S_IWUSR, "OS.Constants.libc.S_IWUSR is defined");
-  is(0400, OS.Constants.libc.S_IRUSR, "OS.Constants.libc.S_IRUSR is defined");
-  is(0700, OS.Constants.libc.S_IRWXU, "OS.Constants.libc.S_IRWXU is defined");
+  is(0o001, OS.Constants.libc.S_IXOTH, "OS.Constants.libc.S_IXOTH is defined");
+  is(0o002, OS.Constants.libc.S_IWOTH, "OS.Constants.libc.S_IWOTH is defined");
+  is(0o007, OS.Constants.libc.S_IRWXO, "OS.Constants.libc.S_IRWXO is defined");
+  is(0o010, OS.Constants.libc.S_IXGRP, "OS.Constants.libc.S_IXGRP is defined");
+  is(0o020, OS.Constants.libc.S_IWGRP, "OS.Constants.libc.S_IWGRP is defined");
+  is(0o040, OS.Constants.libc.S_IRGRP, "OS.Constants.libc.S_IRGRP is defined");
+  is(0o070, OS.Constants.libc.S_IRWXG, "OS.Constants.libc.S_IRWXG is defined");
+  is(0o100, OS.Constants.libc.S_IXUSR, "OS.Constants.libc.S_IXUSR is defined");
+  is(0o200, OS.Constants.libc.S_IWUSR, "OS.Constants.libc.S_IWUSR is defined");
+  is(0o400, OS.Constants.libc.S_IRUSR, "OS.Constants.libc.S_IRUSR is defined");
+  is(0o700, OS.Constants.libc.S_IRWXU, "OS.Constants.libc.S_IRWXU is defined");
 }
 
 // Test that OS.Constants.Win is defined
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/browser/set-samesite-cookies-and-redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/browser/set-samesite-cookies-and-redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/browser/set-samesite-cookies-and-redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/browser/set-samesite-cookies-and-redirect.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -7,8 +7,16 @@
   // Set cookies and redirect for .org:
   if (request.host.endsWith(".org")) {
     response.setHeader("Set-Cookie", "normalCookie=true; path=/;", true);
-    response.setHeader("Set-Cookie", "laxHeader=true; path=/; SameSite=Lax", true);
-    response.setHeader("Set-Cookie", "strictHeader=true; path=/; SameSite=Strict", true);
+    response.setHeader(
+      "Set-Cookie",
+      "laxHeader=true; path=/; SameSite=Lax",
+      true
+    );
+    response.setHeader(
+      "Set-Cookie",
+      "strictHeader=true; path=/; SameSite=Strict",
+      true
+    );
     response.write(`
       <head>
         <meta http-equiv='set-cookie' content='laxMeta=true; path=/; SameSite=Lax'>
@@ -22,7 +30,9 @@
         </script>
       </body>`);
   } else {
-    let baseURI = "https://example.org/" + request.path.replace(/[a-z-]*\.sjs/, "mimeme.sjs?type=");
+    let baseURI =
+      "https://example.org/" +
+      request.path.replace(/[a-z-]*\.sjs/, "mimeme.sjs?type=");
     response.write(`
       <link rel="stylesheet" type="text/css" href="${baseURI}css">
       <iframe src="${baseURI}html"></iframe>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/browser/test_largeAllocationFormSubmit.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/browser/test_largeAllocationFormSubmit.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/browser/test_largeAllocationFormSubmit.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/browser/test_largeAllocationFormSubmit.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,6 +1,8 @@
-const BinaryInputStream = Components.Constructor("@mozilla.org/binaryinputstream;1",
-                                                 "nsIBinaryInputStream",
-                                                 "setInputStream");
+const BinaryInputStream = Components.Constructor(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function handleRequest(request, response) {
   response.setHeader("Large-Allocation", "0", false);
@@ -16,8 +18,9 @@
   var avail;
   var bytes = [];
 
-  while ((avail = body.available()) > 0)
+  while ((avail = body.available()) > 0) {
     Array.prototype.push.apply(bytes, body.readByteArray(avail));
+  }
 
   var data = String.fromCharCode.apply(null, bytes);
   response.bodyOutputStream.write(data, data.length);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/beacon/beacon-handler.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/beacon/beacon-handler.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/beacon/beacon-handler.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/beacon/beacon-handler.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -5,17 +5,23 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function DEBUG(str)
-{
+function DEBUG(str) {
   // dump("********** " + str + "\n");
 }
 
 function setOurState(data) {
-  x = { data: data, QueryInterface: function(iid) { return this } };
+  x = {
+    data,
+    QueryInterface(iid) {
+      return this;
+    },
+  };
   x.wrappedJSObject = x;
   setObjectState("beacon-handler", x);
   DEBUG("our state is " + data);
@@ -43,8 +49,8 @@
     DEBUG("GET was sending : " + data + "\n");
     DEBUG("GET was sending : " + mimetype + "\n");
     var result = {
-      "data": data,
-      "mimetype": mimetype,
+      data,
+      mimetype,
     };
     response.write(JSON.stringify(result));
     setOurState(null);
@@ -54,26 +60,30 @@
     DEBUG(" ------------ GET --------------- ");
     response.setHeader("Content-Type", "application/json", false);
     switch (request.queryString) {
-    case "getLastBeaconCors":
-      // Allow CORS responses of the last beacon
-      var originHeader = request.getHeader("origin");
-      response.setHeader("Access-Control-Allow-Headers", "content-type", false);
-      response.setHeader("Access-Control-Allow-Methods", "POST, GET", false);
-      response.setHeader("Access-Control-Allow-Origin", originHeader, false);
-      response.setHeader("Access-Control-Allow-Credentials", "true", false);
-    case "getLastBeacon":
-      var state = getOurState();
-      if (state === "unblocked") {
-        finishControlResponse(response);
-      } else {
-        DEBUG("GET has  arrived, but POST has not, blocking response!");
-        setOurState(response);
-        response.processAsync();
-      }
-      break;
-    default:
-      response.setStatusLine(request.httpVersion, 400, "Bad Request");
-      break;
+      case "getLastBeaconCors":
+        // Allow CORS responses of the last beacon
+        var originHeader = request.getHeader("origin");
+        response.setHeader(
+          "Access-Control-Allow-Headers",
+          "content-type",
+          false
+        );
+        response.setHeader("Access-Control-Allow-Methods", "POST, GET", false);
+        response.setHeader("Access-Control-Allow-Origin", originHeader, false);
+        response.setHeader("Access-Control-Allow-Credentials", "true", false);
+      case "getLastBeacon":
+        var state = getOurState();
+        if (state === "unblocked") {
+          finishControlResponse(response);
+        } else {
+          DEBUG("GET has  arrived, but POST has not, blocking response!");
+          setOurState(response);
+          response.processAsync();
+        }
+        break;
+      default:
+        response.setStatusLine(request.httpVersion, 400, "Bad Request");
+        break;
     }
     return;
   }
@@ -89,9 +99,11 @@
     }
 
     var data = "";
-    for (var i=0; i < bytes.length; i++) {
+    for (var i = 0; i < bytes.length; i++) {
       // We are only passing strings at this point.
-      if (bytes[i] < 32) continue;
+      if (bytes[i] < 32) {
+        continue;
+      }
       var charcode = String.fromCharCode(bytes[i]);
       data += charcode;
     }
@@ -103,7 +115,6 @@
 
     // check to see if this is form data.
     if (mimetype.indexOf("multipart/form-data") != -1) {
-
       // trim the mime type to make testing easier.
       mimetype = "multipart/form-data";
       // Extract only the form-data name.
@@ -118,10 +129,10 @@
     setState("beaconMimetype", mimetype);
 
     response.setHeader("Content-Type", "text/plain", false);
-    response.write('ok');
+    response.write("ok");
 
     var blockedResponse = getOurState();
-    if (typeof(blockedResponse) == "object" && blockedResponse) {
+    if (typeof blockedResponse == "object" && blockedResponse) {
       DEBUG("GET is already pending, finishing!");
       finishControlResponse(blockedResponse);
       blockedResponse.finish();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/beacon/beacon-originheader-handler.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/beacon/beacon-originheader-handler.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/beacon/beacon-originheader-handler.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/beacon/beacon-originheader-handler.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -3,8 +3,7 @@
  * Bug 1280692 - navigator.sendBeacon() should not send origin header
  */
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/plain", false);
 
@@ -29,13 +28,11 @@
   var header = "reset";
   try {
     header = request.getHeader("origin");
-  }
-  catch(e) {
+  } catch (e) {
     header = "no-header";
   }
   setState("originHeader", header);
 
-
   // if there is an xhr-request waiting, return the header now.
   getObjectState("xhr-response", function(xhrResponse) {
     if (!xhrResponse) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/beacon/beacon-preflight-handler.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/beacon/beacon-preflight-handler.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/beacon/beacon-preflight-handler.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/beacon/beacon-preflight-handler.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,39 +1,38 @@
-function handleRequest(request, response)
-{
-  response.setHeader("Cache-Control", "no-cache, must-revalidate", false);
-
-  if (request.queryString === "verify") {
-    var preflightState = getState("preflight");
-    response.write(preflightState === "done" ? "green" : "red");
-    return;
-  }
-
-  var originHeader = request.getHeader("origin");
-  response.setHeader("Access-Control-Allow-Headers", "content-type", false);
-  response.setHeader("Access-Control-Allow-Methods", "POST, GET", false);
-  response.setHeader("Access-Control-Allow-Origin", originHeader, false);
-  response.setHeader("Access-Control-Allow-Credentials", "true", false);
-
-  if (request.queryString === "beacon") {
-    if (request.method == "OPTIONS") {
-      setState("preflight", "done");
-      response.setStatusLine(null, 200, "OK");
-      return;
-    }
-    response.setStatusLine(null, 200, "OK");
-    response.write("DONE");
-    return;
-  }
-
-  if (request.queryString === "fail") {
-    if (request.method == "OPTIONS") {
-      setState("preflight", "done");
-      response.setStatusLine(null, 400, "Bad Request");
-      return;
-    }
-    setState("preflight", "oops");
-    response.setStatusLine(null, 200, "OK");
-    response.write("DONE");
-    return;
-  }
-}
+function handleRequest(request, response) {
+  response.setHeader("Cache-Control", "no-cache, must-revalidate", false);
+
+  if (request.queryString === "verify") {
+    var preflightState = getState("preflight");
+    response.write(preflightState === "done" ? "green" : "red");
+    return;
+  }
+
+  var originHeader = request.getHeader("origin");
+  response.setHeader("Access-Control-Allow-Headers", "content-type", false);
+  response.setHeader("Access-Control-Allow-Methods", "POST, GET", false);
+  response.setHeader("Access-Control-Allow-Origin", originHeader, false);
+  response.setHeader("Access-Control-Allow-Credentials", "true", false);
+
+  if (request.queryString === "beacon") {
+    if (request.method == "OPTIONS") {
+      setState("preflight", "done");
+      response.setStatusLine(null, 200, "OK");
+      return;
+    }
+    response.setStatusLine(null, 200, "OK");
+    response.write("DONE");
+    return;
+  }
+
+  if (request.queryString === "fail") {
+    if (request.method == "OPTIONS") {
+      setState("preflight", "done");
+      response.setStatusLine(null, 400, "Bad Request");
+      return;
+    }
+    setState("preflight", "oops");
+    response.setStatusLine(null, 200, "OK");
+    response.write("DONE");
+    return;
+  }
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/beacon/beacon-redirect-handler.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/beacon/beacon-redirect-handler.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/beacon/beacon-redirect-handler.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/beacon/beacon-redirect-handler.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,47 +1,46 @@
-/*
- * TestSever customized specifically for the needs of:
- * Bug 1280692 - sendBeacon() should follow 30x redirect
- *
- * Here is a sequence of the test:
- * [1] sendBeacon (identified by the queryString 'beacon') which gets redirected
- * [2] redirected sendBeacon (identified by the queryString 'redirected') which
- *     updates the state idniciating that redirected sendBeacon succeeds.
- * [3] xhr request (identified by the queryString 'verifyRedirectDidSucceed')
- *     which checks if the state was not changed from 'reset' to 'gree'. If the channel
- *     woulnd't be blocked correctly the redirected channel would set the state to 'red'.
- *
- */
-
-function handleRequest(request, response)
-{
-  response.setHeader("Cache-Control", "no-cache, must-revalidate", false);
-
-  // [Sequence 3]
-  if (request.queryString === "verifyRedirectDidSucceed") {
-    var redirectState = getState("redirectState");
-    response.write(redirectState);
-    return;
-  }
-
-  // [Sequence 1]
-  if (request.queryString === "beacon") {
-    setState("redirectState", "reset");
-    var newLocation =
-      "http://mochi.test:8888/tests/dom/tests/mochitest/beacon/beacon-redirect-handler.sjs?redirected";
-    response.setStatusLine("1.1", 302, "Found");
-    response.setHeader("Location", newLocation, false);
-    return;
-  }
-
-  // [Sequence 2]
-  if (request.queryString === "redirected") {
-    setState("redirectState", "green");
-    response.setStatusLine(null, 200, "OK");
-    return;
-  }
-
-  // we should never get here, but just in case let's
-  // set the state to something unexpected
-  setState("redirectState", "red");
-  response.setStatusLine(null, 200, "OK");
-}
+/*
+ * TestSever customized specifically for the needs of:
+ * Bug 1280692 - sendBeacon() should follow 30x redirect
+ *
+ * Here is a sequence of the test:
+ * [1] sendBeacon (identified by the queryString 'beacon') which gets redirected
+ * [2] redirected sendBeacon (identified by the queryString 'redirected') which
+ *     updates the state idniciating that redirected sendBeacon succeeds.
+ * [3] xhr request (identified by the queryString 'verifyRedirectDidSucceed')
+ *     which checks if the state was not changed from 'reset' to 'gree'. If the channel
+ *     woulnd't be blocked correctly the redirected channel would set the state to 'red'.
+ *
+ */
+
+function handleRequest(request, response) {
+  response.setHeader("Cache-Control", "no-cache, must-revalidate", false);
+
+  // [Sequence 3]
+  if (request.queryString === "verifyRedirectDidSucceed") {
+    var redirectState = getState("redirectState");
+    response.write(redirectState);
+    return;
+  }
+
+  // [Sequence 1]
+  if (request.queryString === "beacon") {
+    setState("redirectState", "reset");
+    var newLocation =
+      "http://mochi.test:8888/tests/dom/tests/mochitest/beacon/beacon-redirect-handler.sjs?redirected";
+    response.setStatusLine("1.1", 302, "Found");
+    response.setHeader("Location", newLocation, false);
+    return;
+  }
+
+  // [Sequence 2]
+  if (request.queryString === "redirected") {
+    setState("redirectState", "green");
+    response.setStatusLine(null, 200, "OK");
+    return;
+  }
+
+  // we should never get here, but just in case let's
+  // set the state to something unexpected
+  setState("redirectState", "red");
+  response.setStatusLine(null, 200, "OK");
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/beacon/beacon-set-cookie.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/beacon/beacon-set-cookie.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/beacon/beacon-set-cookie.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/beacon/beacon-set-cookie.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,6 +1,8 @@
-function handleRequest(request, response)
-{
-  response.setHeader("Set-Cookie", "cookie="+ request.host + "~" + Math.random());
+function handleRequest(request, response) {
+  response.setHeader(
+    "Set-Cookie",
+    "cookie=" + request.host + "~" + Math.random()
+  );
   response.setHeader("Content-Type", "text/plain", false);
   response.setHeader("Cache-Control", "no-cache", false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/bugs/bug289714.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/bugs/bug289714.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/bugs/bug289714.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/bugs/bug289714.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -2,12 +2,12 @@
 // large enough to ensure that OnDataAvailable is called more than once (and so
 // the XHR will be triggered to send more than one "loading" event if desired).
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // Send 81920 bytes of こんにちは in Shift-JIS encoding, framed in XML.
-  let data = "<?xml version='1.0' encoding='shift-jis'?><xml>" +
-             (new Array(1 << 13)).join("\x82\xb1\x82\xf1\x82\xc9\x82\xbf\x82\xcd") +
-             "</xml>";
+  let data =
+    "<?xml version='1.0' encoding='shift-jis'?><xml>" +
+    new Array(1 << 13).join("\x82\xb1\x82\xf1\x82\xc9\x82\xbf\x82\xcd") +
+    "</xml>";
   response.processAsync();
   response.setHeader("Content-Type", "text/xml", false);
   response.setHeader("Content-Length", "" + data.length, false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/bugs/test_bug346659.html firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/bugs/test_bug346659.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/bugs/test_bug346659.html	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/bugs/test_bug346659.html	2021-10-20 19:28:19.000000000 +0000
@@ -192,12 +192,15 @@
 
 is(location.host, "mochi.test:8888", "Unexpected host");
 
-var baseurl = window.location.href.replace(/mochi\.test:8888/, "example.com");
-wins[7] = window.open(r(baseurl, 'bug346659-opener.html?{"load":7}'));
-wins[9] = window.open(r(baseurl, 'bug346659-parent.html?{"load":9}'));
+SpecialPowers.pushPrefEnv({"set": [["dom.security.https_first", false]]}, function() {
+  var baseurl = window.location.href.replace(/mochi\.test:8888/, "example.com");
+  wins[7] = window.open(r(baseurl, 'bug346659-opener.html?{"load":7}'));
+  wins[9] = window.open(r(baseurl, 'bug346659-parent.html?{"load":9}'));
+
+  wins[11] = window.open(r(baseurl, 'bug346659-opener.html?{"load":11,"xsite":true}'));
+  wins[12] = window.open(r(baseurl, 'bug346659-parent.html?{"load":12,"xsite":true}'));
+});
 
-wins[11] = window.open(r(baseurl, 'bug346659-opener.html?{"load":11,"xsite":true}'));
-wins[12] = window.open(r(baseurl, 'bug346659-parent.html?{"load":12,"xsite":true}'));
 </script>
 </pre>
 </body>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/fetch/slow.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/fetch/slow.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/fetch/slow.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/fetch/slow.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,11 +1,15 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
 
-  timer = Components.classes["@mozilla.org/timer;1"].
-          createInstance(Components.interfaces.nsITimer);
-  timer.init(function() {
-    response.write("Here the content. But slowly.");
-    response.finish();
-  }, 1000, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.init(
+    function() {
+      response.write("Here the content. But slowly.");
+      response.finish();
+    },
+    1000,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/general/frameStorageNullprincipal.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/general/frameStorageNullprincipal.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/general/frameStorageNullprincipal.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/general/frameStorageNullprincipal.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -7,15 +7,19 @@
   // Get the nsIFile for frameStoragePrevented.html
   var file;
   getObjectState("SERVER_ROOT", function(serverRoot) {
-    file = serverRoot.getFile("/tests/dom/tests/mochitest/general/frameStoragePrevented.html");
+    file = serverRoot.getFile(
+      "/tests/dom/tests/mochitest/general/frameStoragePrevented.html"
+    );
   });
 
   // Set up the file streams to read in the file as UTF-8
-  let fstream = Components.classes["@mozilla.org/network/file-input-stream;1"].
-      createInstance(Components.interfaces.nsIFileInputStream);
+  let fstream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fstream.init(file, -1, 0, 0);
-  let cstream = Components.classes["@mozilla.org/intl/converter-input-stream;1"].
-      createInstance(Components.interfaces.nsIConverterInputStream);
+  let cstream = Components.classes[
+    "@mozilla.org/intl/converter-input-stream;1"
+  ].createInstance(Components.interfaces.nsIConverterInputStream);
   cstream.init(fstream, "UTF-8", 0, 0);
 
   // Read in the file, and concatenate it onto the data string
@@ -28,6 +32,9 @@
   } while (read != 0);
 
   // Write out the file as a data: URI, and redirect to it
-  response.setStatusLine('1.1', 302, 'Found');
-  response.setHeader('Location', 'data:text/html,' + encodeURIComponent(data) + "#nullprincipal");
+  response.setStatusLine("1.1", 302, "Found");
+  response.setHeader(
+    "Location",
+    "data:text/html," + encodeURIComponent(data) + "#nullprincipal"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/general/generateCss.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/general/generateCss.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/general/generateCss.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/general/generateCss.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -5,38 +5,43 @@
 
 let gResponses = {
   // 1
-  "A": "@import 'generateCss.sjs?B';",
-  "B": "",
+  A: "@import 'generateCss.sjs?B';",
+  B: "",
 
   // 2
-  "C": "@import 'generateCss.sjs?D';",
-  "D": "",
+  C: "@import 'generateCss.sjs?D';",
+  D: "",
 
   // 3
-  "E": "@import 'generateCss.sjs?F';",
-  "F": "",
+  E: "@import 'generateCss.sjs?F';",
+  F: "",
 
   // 4
-  "G": "@import 'generateCss.sjs?H'; @import 'http://example.org/tests/dom/tests/mochitest/general/generateCss.sjs?K';",
-  "H": "@import 'http://example.com/tests/dom/tests/mochitest/general/generateCss.sjs?I';",
-  "I": "@import 'generateCss.sjs?J",
-  "J": "",
-  "K": "@import 'generateCss.sjs?L';",
-  "L": "@import 'generateCss.sjs?M",
-  "M": "",
+  G:
+    "@import 'generateCss.sjs?H'; @import 'http://example.org/tests/dom/tests/mochitest/general/generateCss.sjs?K';",
+  H:
+    "@import 'http://example.com/tests/dom/tests/mochitest/general/generateCss.sjs?I';",
+  I: "@import 'generateCss.sjs?J",
+  J: "",
+  K: "@import 'generateCss.sjs?L';",
+  L: "@import 'generateCss.sjs?M",
+  M: "",
 
   // 5
-  "N": ".c1 { background-image: -moz-image-rect(url('/image/test/mochitest/blue.png'), 0, 0, 200, 200);}",
+  N:
+    ".c1 { background-image: -moz-image-rect(url('/image/test/mochitest/blue.png'), 0, 0, 200, 200);}",
 
   // 6
-  "O": ".c2 { background-image: url('/image/test/mochitest/red.png');}",
+  O: ".c2 { background-image: url('/image/test/mochitest/red.png');}",
 
   // 7
-  "P": "@font-face { font-family: Ahem; src: url('/tests/dom/base/test/Ahem.ttf'); } .c3 { font-family: Ahem; font-size: 20px; }",
+  P:
+    "@font-face { font-family: Ahem; src: url('/tests/dom/base/test/Ahem.ttf'); } .c3 { font-family: Ahem; font-size: 20px; }",
 
   // 8
-  "Q": ".c4 { cursor:  url('/image/test/mochitest/over.png') 2 2, auto; } ",
+  Q: ".c4 { cursor:  url('/image/test/mochitest/over.png') 2 2, auto; } ",
 
   // 9
-  "R": "#image { mask: url('/tests/dom/base/test/file_use_counter_svg_fill_pattern_data.svg'); }",
+  R:
+    "#image { mask: url('/tests/dom/base/test/file_use_counter_svg_fill_pattern_data.svg'); }",
 };
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/geolocation/network_geolocation.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/geolocation/network_geolocation.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/geolocation/network_geolocation.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/geolocation/network_geolocation.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,57 +1,55 @@
-function parseQueryString(str)
-{
-  if (str == "")
+function parseQueryString(str) {
+  if (str == "") {
     return {};
+  }
 
   var paramArray = str.split("&");
   var regex = /^([^=]+)=(.*)$/;
   var params = {};
-  for (var i = 0, sz = paramArray.length; i < sz; i++)
-  {
+  for (var i = 0, sz = paramArray.length; i < sz; i++) {
     var match = regex.exec(paramArray[i]);
-    if (!match)
+    if (!match) {
       throw "Bad parameter in queryString!  '" + paramArray[i] + "'";
+    }
     params[decodeURIComponent(match[1])] = decodeURIComponent(match[2]);
   }
 
   return params;
 }
 
-function getPosition(action)
-{
+function getPosition(action) {
   var response = {
     status: "OK",
     location: {
       lat: 37.41857,
       lng: -122.08769,
     },
-    accuracy: (action == "worse-accuracy") ? 100 : 42,
+    accuracy: action == "worse-accuracy" ? 100 : 42,
   };
 
   return JSON.stringify(response);
 }
 
 var timer;
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var params = parseQueryString(request.queryString);
 
   if (params.action == "stop-responding") {
-      response.processAsync();
-      return;
+    response.processAsync();
+    return;
   }
 
   var position = getPosition(params.action);
 
   if (params.action == "respond-garbage") {
-     // better way?
+    // better way?
     var chars = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz";
     position = "";
     var len = Math.floor(Math.random() * 5000);
 
-    for (var i=0; i< len; i++) {
-        var c = Math.floor(Math.random() * chars.length);
-        position += chars.substring(c, c+1);
+    for (var i = 0; i < len; i++) {
+      var c = Math.floor(Math.random() * chars.length);
+      position += chars.substring(c, c + 1);
     }
   }
 
@@ -62,17 +60,22 @@
   response.setHeader("Content-Type", "aplication/x-javascript", false);
 
   var delay = 0;
-  if ('delay' in params) {
+  if ("delay" in params) {
     delay = params.delay;
   }
   if (params.action === "send404") {
     response.setStatusLine("1.0", 404, "Not Found");
-    position = '';
+    position = "";
   }
-  timer = Components.classes["@mozilla.org/timer;1"].createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function() {
-    response.write(position);
-    response.finish();
-  }, delay, timer.TYPE_ONE_SHOT);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
+      response.write(position);
+      response.finish();
+    },
+    delay,
+    timer.TYPE_ONE_SHOT
+  );
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/script/file_blocked_script.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/script/file_blocked_script.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/script/file_blocked_script.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/script/file_blocked_script.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -4,15 +4,18 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-function setGlobalState(data, key)
-{
-  x = { data: data, QueryInterface: function(iid) { return this } };
+function setGlobalState(data, key) {
+  x = {
+    data,
+    QueryInterface(iid) {
+      return this;
+    },
+  };
   x.wrappedJSObject = x;
   setObjectState(key, x);
 }
 
-function getGlobalState(key)
-{
+function getGlobalState(key) {
   var data;
   getObjectState(key, function(x) {
     data = x && x.wrappedJSObject.data;
@@ -20,8 +23,7 @@
   return data;
 }
 
-function finishBlockedRequest(request, response, query)
-{
+function finishBlockedRequest(request, response, query) {
   response.setStatusLine(request.httpVersion, 200, "OK");
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "application/javascript", false);
@@ -31,9 +33,8 @@
   setGlobalState(undefined, query[1]);
 }
 
-function handleRequest(request, response)
-{
-  var query = request.queryString.split('&');
+function handleRequest(request, response) {
+  var query = request.queryString.split("&");
   switch (query[0]) {
     case "blocked":
       var alreadyUnblocked = getGlobalState(query[1]);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/sessionstorage/test_sessionStorageClone.html firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/sessionstorage/test_sessionStorageClone.html
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/tests/mochitest/sessionstorage/test_sessionStorageClone.html	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/tests/mochitest/sessionstorage/test_sessionStorageClone.html	2021-10-20 19:28:19.000000000 +0000
@@ -39,7 +39,7 @@
       slave.close();
       // Open a window from a different origin and check data
       // are NOT copied and not modified on our side
-      slaveOrigin = "http://example.com";
+      slaveOrigin = "https://example.com";
       slave = window.open(slaveOrigin + slavePath + "frameNotEqual.html");
       break;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/vr/XRNativeOriginLocalFloor.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/vr/XRNativeOriginLocalFloor.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/vr/XRNativeOriginLocalFloor.cpp	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/vr/XRNativeOriginLocalFloor.cpp	2021-10-20 19:28:19.000000000 +0000
@@ -4,6 +4,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+#include "mozilla/StaticPrefs_dom.h"
 #include "XRNativeOriginLocalFloor.h"
 #include "VRDisplayClient.h"
 
@@ -15,13 +16,11 @@
     : mDisplay(aDisplay), mInitialPositionValid(false) {
   MOZ_ASSERT(aDisplay);
 
-  // To avoid fingerprinting, we offset the floor height by 5cm.
-  // This will always result in the floor being lower than the
+  // To avoid fingerprinting, we offset the floor height.
+  // This should result in the floor being higher than the
   // real floor in order to avoid breaking content that expects
   // you to pick objects up off the floor.
-  //
-  // TODO (Bug 1616394) - Convert this constant to a pref.
-  const double kFloorFuzz = 0.05f;  // Meters
+  const double kFloorFuzz = StaticPrefs::dom_vr_webxr_quantization();  // Meters
   mFloorRandom = double(rand()) / double(RAND_MAX) * kFloorFuzz;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/webidl/History.webidl firefox-trunk-95.0~a1~hg20211020r596404/dom/webidl/History.webidl
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/webidl/History.webidl	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/webidl/History.webidl	2021-10-20 19:28:19.000000000 +0000
@@ -21,7 +21,7 @@
   attribute ScrollRestoration scrollRestoration;
   [Throws]
   readonly attribute any state;
-  [Throws, NeedsCallerType]
+  [Throws, NeedsSubjectPrincipal]
   void go(optional long delta = 0);
   [Throws, NeedsCallerType]
   void back();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/404_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/404_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/404_server.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/404_server.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,10 +1,9 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 404, "Not found");
 
   // Any valid JS.
-  if (request.queryString == 'js') {
+  if (request.queryString == "js") {
     response.setHeader("Content-Type", "text/javascript", false);
-    response.write('4 + 4');
+    response.write("4 + 4");
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/browser_fileURL.js firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/browser_fileURL.js
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/browser_fileURL.js	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/browser_fileURL.js	2021-10-20 19:28:20.000000000 +0000
@@ -3,108 +3,6 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 "use strict";
 
-const WORKER_BODY = "postMessage(42);\n";
-
-// file:// tests.
-add_task(async function() {
-  await SpecialPowers.pushPrefEnv({
-    set: [["privacy.file_unique_origin", false]],
-  });
-
-  info("Creating the tmp directory.");
-  let parent = Cc["@mozilla.org/file/directory_service;1"]
-    .getService(Ci.nsIDirectoryService)
-    .QueryInterface(Ci.nsIProperties)
-    .get("TmpD", Ci.nsIFile);
-  parent.append("worker-dir-test");
-  parent.createUnique(Ci.nsIFile.DIRECTORY_TYPE, 0o700);
-
-  let dir_a = parent.clone();
-  dir_a.append("a");
-  dir_a.create(Ci.nsIFile.DIRECTORY_TYPE, 0o700);
-
-  let page_a = dir_a.clone();
-  page_a.append("empty.html");
-  page_a.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0o600);
-
-  let url_a = Services.io.newFileURI(page_a);
-
-  let worker = dir_a.clone();
-  worker.append("worker.js");
-
-  let stream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(
-    Ci.nsIFileOutputStream
-  );
-  stream.init(
-    worker,
-    0x02 | 0x08 | 0x20, // write, create, truncate
-    0o666,
-    0
-  );
-  stream.write(WORKER_BODY, WORKER_BODY.length);
-  stream.close();
-
-  let url_worker = Services.io.newFileURI(worker);
-
-  let dir_b = parent.clone();
-  dir_b.append("b");
-  dir_b.create(Ci.nsIFile.DIRECTORY_TYPE, 0o700);
-
-  let page_b = dir_b.clone();
-  page_b.append("empty.html");
-  page_b.create(Ci.nsIFile.NORMAL_FILE_TYPE, 0o600);
-
-  let url_b = Services.io.newFileURI(page_b);
-
-  let tab = BrowserTestUtils.addTab(gBrowser, url_a.spec);
-  gBrowser.selectedTab = tab;
-
-  let browser = gBrowser.getBrowserForTab(tab);
-  await BrowserTestUtils.browserLoaded(browser);
-
-  await SpecialPowers.spawn(browser, [url_worker.spec], function(spec) {
-    return new content.Promise((resolve, reject) => {
-      let w = new content.window.Worker(spec);
-      w.onerror = _ => {
-        reject();
-      };
-      w.onmessage = _ => {
-        resolve();
-      };
-    });
-  });
-  ok(true, "The worker is loaded when the script is on the same directory.");
-
-  BrowserTestUtils.removeTab(tab);
-
-  tab = BrowserTestUtils.addTab(gBrowser, url_b.spec);
-  gBrowser.selectedTab = tab;
-
-  browser = gBrowser.getBrowserForTab(tab);
-  await BrowserTestUtils.browserLoaded(browser);
-
-  await SpecialPowers.spawn(browser, [url_worker.spec], function(spec) {
-    return new content.Promise((resolve, reject) => {
-      let w = new content.window.Worker(spec);
-      w.onerror = _ => {
-        resolve();
-      };
-      w.onmessage = _ => {
-        reject();
-      };
-    });
-  });
-  ok(
-    true,
-    "The worker is not loaded when the script is on a different directory."
-  );
-
-  BrowserTestUtils.removeTab(tab);
-
-  info("Removing the tmp directory.");
-  parent.remove(true);
-});
-
 const EMPTY_URL = "/browser/dom/workers/test/empty.html";
 const WORKER_URL = "/browser/dom/workers/test/empty_worker.js";
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/bug1063538.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/bug1063538.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/bug1063538.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/bug1063538.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,6 +1,7 @@
 function handleRequest(request, response) {
   response.processAsync();
   response.write("Hello");
-  setTimeout(function() { response.finish(); }, 100000); // wait 100 seconds.
+  setTimeout(function() {
+    response.finish();
+  }, 100000); // wait 100 seconds.
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/redirect_to_foreign.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/redirect_to_foreign.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/redirect_to_foreign.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/redirect_to_foreign.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,4 +1,7 @@
 function handleRequest(request, response) {
   response.setStatusLine("1.1", 302, "Found");
-  response.setHeader("Location", "http://example.org/tests/dom/workers/test/foreign.js");
+  response.setHeader(
+    "Location",
+    "http://example.org/tests/dom/workers/test/foreign.js"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/referrer.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/referrer.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/referrer.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/referrer.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (request.queryString == "result") {
     response.write(getState("referer"));
     setState("referer", "INVALID");
@@ -7,10 +6,9 @@
     response.setHeader("Content-Type", "text/javascript", false);
     response.write("onmessage = function() { postMessage(42); }");
     setState("referer", request.getHeader("referer"));
-  } else if (request.queryString == 'import') {
+  } else if (request.queryString == "import") {
     setState("referer", request.getHeader("referer"));
     response.setHeader("Content-Type", "text/javascript", false);
     response.write("'hello world'");
   }
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/referrer_test_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/referrer_test_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/referrer_test_server.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/referrer_test_server.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -22,7 +22,7 @@
 
   return url + searchParams.toString();
 }
-function createWorker (aRequestType, aPolicy) {
+function createWorker(aRequestType, aPolicy) {
   return `
     onmessage = function() {
       fetch("${createUrl(aRequestType, aPolicy)}").then(function () {
@@ -97,5 +97,3 @@
     return;
   }
 }
-
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/server_fetch_synthetic.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/server_fetch_synthetic.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/server_fetch_synthetic.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/server_fetch_synthetic.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -38,7 +38,7 @@
     blobContents = extractBlobFromMultipartFormData(requestBodyContents);
   }
 
-  log("Setting Headers")
+  log("Setting Headers");
   response.setHeader("Content-Type", "text/html", false);
   response.setStatusLine(request.httpVersion, "200", "OK");
   response.write(`<!DOCTYPE HTML><head><meta charset="utf-8"/></head><body>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileBlobPosting.xhtml firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileBlobPosting.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileBlobPosting.xhtml	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileBlobPosting.xhtml	2021-10-20 19:28:19.000000000 +0000
@@ -40,7 +40,7 @@
     var outStream = Cc["@mozilla.org/network/file-output-stream;1"]
                         .createInstance(Ci.nsIFileOutputStream);
     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
-                   0666, 0);
+                   0o666, 0);
     outStream.write(fileData, fileData.length);
     outStream.close();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileBlobSubWorker.xhtml firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileBlobSubWorker.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileBlobSubWorker.xhtml	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileBlobSubWorker.xhtml	2021-10-20 19:28:19.000000000 +0000
@@ -41,7 +41,7 @@
     var outStream = Cc["@mozilla.org/network/file-output-stream;1"]
                         .createInstance(Ci.nsIFileOutputStream);
     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
-                   0666, 0);
+                   0o666, 0);
     outStream.write(fileData, fileData.length);
     outStream.close();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_filePosting.xhtml firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_filePosting.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_filePosting.xhtml	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_filePosting.xhtml	2021-10-20 19:28:20.000000000 +0000
@@ -40,7 +40,7 @@
     var outStream = Cc["@mozilla.org/network/file-output-stream;1"]
                         .createInstance(Ci.nsIFileOutputStream);
     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
-                   0666, 0);
+                   0o666, 0);
     outStream.write(fileData, fileData.length);
     outStream.close();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileReaderSyncErrors.xhtml firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileReaderSyncErrors.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileReaderSyncErrors.xhtml	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileReaderSyncErrors.xhtml	2021-10-20 19:28:20.000000000 +0000
@@ -40,7 +40,7 @@
     var outStream = Cc["@mozilla.org/network/file-output-stream;1"]
                         .createInstance(Ci.nsIFileOutputStream);
     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
-                   0666, 0);
+                   0o666, 0);
     outStream.write(fileData, fileData.length);
     outStream.close();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileReaderSync.xhtml firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileReaderSync.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileReaderSync.xhtml	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileReaderSync.xhtml	2021-10-20 19:28:20.000000000 +0000
@@ -41,7 +41,7 @@
     var outStream = Cc["@mozilla.org/network/file-output-stream;1"]
                         .createInstance(Ci.nsIFileOutputStream);
     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
-                   0666, 0);
+                   0o666, 0);
     outStream.write(fileData, fileData.length);
     outStream.close();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileReadSlice.xhtml firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileReadSlice.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileReadSlice.xhtml	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileReadSlice.xhtml	2021-10-20 19:28:20.000000000 +0000
@@ -44,7 +44,7 @@
     var outStream = Cc["@mozilla.org/network/file-output-stream;1"]
                         .createInstance(Ci.nsIFileOutputStream);
     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
-                   0666, 0);
+                   0o666, 0);
     outStream.write(fileData, fileData.length);
     outStream.close();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileSlice.xhtml firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileSlice.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileSlice.xhtml	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileSlice.xhtml	2021-10-20 19:28:20.000000000 +0000
@@ -41,7 +41,7 @@
     var outStream = Cc["@mozilla.org/network/file-output-stream;1"]
                         .createInstance(Ci.nsIFileOutputStream);
     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
-                   0666, 0);
+                   0o666, 0);
     outStream.write(fileData, fileData.length);
     outStream.close();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileSubWorker.xhtml firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileSubWorker.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_fileSubWorker.xhtml	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_fileSubWorker.xhtml	2021-10-20 19:28:19.000000000 +0000
@@ -41,7 +41,7 @@
     var outStream = Cc["@mozilla.org/network/file-output-stream;1"]
                         .createInstance(Ci.nsIFileOutputStream);
     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
-                   0666, 0);
+                   0o666, 0);
     outStream.write(fileData, fileData.length);
     outStream.close();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_file.xhtml firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_file.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/test/test_file.xhtml	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/test/test_file.xhtml	2021-10-20 19:28:20.000000000 +0000
@@ -41,7 +41,7 @@
     var outStream = Cc["@mozilla.org/network/file-output-stream;1"]
                         .createInstance(Ci.nsIFileOutputStream);
     outStream.init(testFile, 0x02 | 0x08 | 0x20, // write, create, truncate
-                   0666, 0);
+                   0o666, 0);
     outStream.write(fileData, fileData.length);
     outStream.close();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/WorkerScope.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/WorkerScope.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/workers/WorkerScope.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/workers/WorkerScope.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -454,7 +454,7 @@
   {
     AUTO_PROFILER_MARKER_TEXT(
         "ImportScripts", JS, MarkerStack::Capture(),
-        profiler_can_accept_markers()
+        profiler_thread_is_being_profiled()
             ? StringJoin(","_ns, aScriptURLs,
                          [](nsACString& dest, const auto& scriptUrl) {
                            AppendUTF16toUTF8(scriptUrl, dest);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/worklet/tests/server_import_with_cache.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/worklet/tests/server_import_with_cache.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/worklet/tests/server_import_with_cache.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/worklet/tests/server_import_with_cache.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,12 +1,11 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/javascript", false);
 
   var state = getState("alreadySent");
   if (!state) {
     setState("alreadySent", "1");
   } else {
-    response.setStatusLine('1.1', 404, "Not Found");
+    response.setStatusLine("1.1", 404, "Not Found");
   }
 
   response.write("42");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/echo.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/echo.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/echo.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/echo.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,21 +1,26 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain");
   if (request.method == "GET") {
-     response.write(request.queryString);
-     return;
+    response.write(request.queryString);
+    return;
   }
 
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
   var body = "";
   var bodyAvail;
-  while ((bodyAvail = bodyStream.available()) > 0)
-    body += String.fromCharCode.apply(null, bodyStream.readByteArray(bodyAvail));
-  
+  while ((bodyAvail = bodyStream.available()) > 0) {
+    body += String.fromCharCode.apply(
+      null,
+      bodyStream.readByteArray(bodyAvail)
+    );
+  }
+
   response.write(body);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_html_in_xhr.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_html_in_xhr.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_html_in_xhr.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_html_in_xhr.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,15 +1,19 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/javascript", false);
   if (request.queryString.indexOf("report") != -1) {
     if (getState("loaded") == "loaded") {
-      response.write("ok(false, 'This script was not supposed to get fetched.'); continueAfterReport();");
+      response.write(
+        "ok(false, 'This script was not supposed to get fetched.'); continueAfterReport();"
+      );
     } else {
-      response.write("ok(true, 'This script was not supposed to get fetched.'); continueAfterReport();");      
+      response.write(
+        "ok(true, 'This script was not supposed to get fetched.'); continueAfterReport();"
+      );
     }
   } else {
     setState("loaded", "loaded");
-    response.write('document.documentElement.setAttribute("data-fail", "FAIL");');
+    response.write(
+      'document.documentElement.setAttribute("data-fail", "FAIL");'
+    );
   }
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHR_anon.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHR_anon.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHR_anon.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHR_anon.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -4,10 +4,10 @@
 
   if (request.queryString == "expectAuth=true") {
     if (request.hasHeader("Authorization")) {
-      headers["authorization"] = request.getHeader("Authorization");
+      headers.authorization = request.getHeader("Authorization");
     } else {
       response.setStatusLine(null, 401, "Authentication required");
-      response.setHeader("WWW-Authenticate", "basic realm=\"testrealm\"", true);
+      response.setHeader("WWW-Authenticate", 'basic realm="testrealm"', true);
     }
   } else {
     invalidHeaders.push("Authorization");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHRDocURI.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHRDocURI.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHRDocURI.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHRDocURI.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(aRequest, aResponse)
-{
+function handleRequest(aRequest, aResponse) {
   var url = aRequest.queryString.match(/\burl=([^#&]*)/);
   if (!url) {
     aResponse.setStatusLine(aRequest.httpVersion, 404, "Not Found");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHR_header.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHR_header.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHR_header.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHR_header.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,9 +1,8 @@
-// SJS file for getAllResponseRequests vs getResponseRequest
-function handleRequest(request, response)
-{
-  // Header strings are interpreted by truncating the characters in them to
-  // bytes, so U+2026 HORIZONTAL ELLIPSIS here must be encoded manually: using
-  // "…" as the string would write a \x26 byte.
-  response.setHeader("X-Custom-Header-Bytes", "\xE2\x80\xA6", false);
-  response.write("42");
-}
+// SJS file for getAllResponseRequests vs getResponseRequest
+function handleRequest(request, response) {
+  // Header strings are interpreted by truncating the characters in them to
+  // bytes, so U+2026 HORIZONTAL ELLIPSIS here must be encoded manually: using
+  // "…" as the string would write a \x26 byte.
+  response.setHeader("X-Custom-Header-Bytes", "\xE2\x80\xA6", false);
+  response.write("42");
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHRResponseURL.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHRResponseURL.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHRResponseURL.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHRResponseURL.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(aRequest, aResponse)
-{
+function handleRequest(aRequest, aResponse) {
   var url = aRequest.queryString.match(/\burl=([^#&]*)/);
   if (!url) {
     aResponse.setStatusLine(aRequest.httpVersion, 404, "Not Found");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHRSendData.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHRSendData.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHRSendData.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHRSendData.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,21 +1,26 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
-  if (request.hasHeader("Content-Type"))
-    response.setHeader("Result-Content-Type",
-                       request.getHeader("Content-Type"));
+function handleRequest(request, response) {
+  if (request.hasHeader("Content-Type")) {
+    response.setHeader(
+      "Result-Content-Type",
+      request.getHeader("Content-Type")
+    );
+  }
 
   response.setHeader("Content-Type", "text/plain; charset=ISO-8859-1");
 
   var body = new BinaryInputStream(request.bodyInputStream);
   var avail;
   var bytes = [];
-  while ((avail = body.available()) > 0)
+  while ((avail = body.available()) > 0) {
     Array.prototype.push.apply(bytes, body.readByteArray(avail));
+  }
 
   var data = String.fromCharCode.apply(null, bytes);
   response.setHeader("Result-Content-Length", "" + data.length);
@@ -23,8 +28,7 @@
     var newURL = "http://" + data.split("&url=")[1];
     response.setStatusLine(null, 307, "redirect");
     response.setHeader("Location", newURL, false);
-  }
-  else {
+  } else {
     response.write(data);
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHR_timeout.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHR_timeout.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/file_XHR_timeout.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/file_XHR_timeout.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,15 +1,18 @@
 var timer = null;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
-  timer = Components.classes["@mozilla.org/timer;1"]
-                    .createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function()
-  {
-    response.setStatusLine(null, 200, "OK");
-    response.setHeader("Content-Type", "text/plain", false);
-    response.write("hello");
-    response.finish();
-  }, 3000 /* milliseconds */, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
+      response.setStatusLine(null, 200, "OK");
+      response.setHeader("Content-Type", "text/plain", false);
+      response.write("hello");
+      response.finish();
+    },
+    3000 /* milliseconds */,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/progressserver.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/progressserver.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/progressserver.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/progressserver.sjs	2021-10-20 19:28:19.000000000 +0000
@@ -1,7 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function setReq(req) {
   setObjectState("dom/xhr/tests/progressserver", req);
@@ -15,25 +17,28 @@
   return req;
 }
 
-function handleRequest(request, response)
-{
-  var pairs = request.queryString.split('&');
+function handleRequest(request, response) {
+  var pairs = request.queryString.split("&");
   var command = pairs.shift();
   dump("received '" + command + "' command\n");
 
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
   var body = "";
   var bodyAvail;
-  while ((bodyAvail = bodyStream.available()) > 0)
-    body += String.fromCharCode.apply(null, bodyStream.readByteArray(bodyAvail));
+  while ((bodyAvail = bodyStream.available()) > 0) {
+    body += String.fromCharCode.apply(
+      null,
+      bodyStream.readByteArray(bodyAvail)
+    );
+  }
 
   if (command == "open") {
     response.processAsync();
     setReq(response);
 
     response.setHeader("Cache-Control", "no-cache", false);
-    pairs.forEach(function (val) {
-      var [name, value] = val.split('=');
+    pairs.forEach(function(val) {
+      var [name, value] = val.split("=");
       response.setHeader(name, unescape(value), false);
     });
     response.write(body);
@@ -42,8 +47,7 @@
 
   if (command == "send") {
     getReq().write(body);
-  }
-  else if (command == "close") {
+  } else if (command == "close") {
     getReq().finish();
     setReq(null);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/responseIdentical.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/responseIdentical.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/responseIdentical.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/responseIdentical.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,16 +1,19 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 // Simply sending back the same data that is received
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var body = "";
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
-  var bytes = [], avail = 0;
-  while ((avail = bodyStream.available()) > 0)
+  var bytes = [],
+    avail = 0;
+  while ((avail = bodyStream.available()) > 0) {
     body += String.fromCharCode.apply(String, bodyStream.readByteArray(avail));
+  }
 
   response.setHeader("Content-Type", "application/octet-stream", false);
   response.write(body);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/slow.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/slow.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/slow.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/slow.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,11 +1,15 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
 
-  timer = Components.classes["@mozilla.org/timer;1"].
-          createInstance(Components.interfaces.nsITimer);
-  timer.init(function() {
-    response.write("Here the content. But slowly.");
-    response.finish();
-  }, 5000, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.init(
+    function() {
+      response.write("Here the content. But slowly.");
+      response.finish();
+    },
+    5000,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/sync_xhr_unload.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/sync_xhr_unload.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/sync_xhr_unload.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/sync_xhr_unload.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,15 +1,18 @@
 var timer = null;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
-  timer = Components.classes["@mozilla.org/timer;1"]
-                    .createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function()
-  {
-    response.setStatusLine(null, 200, "OK");
-    response.setHeader("Content-Type", "text/plain", false);
-    response.write("hello");
-    response.finish();
-  }, 30000 /* milliseconds */, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
+      response.setStatusLine(null, 200, "OK");
+      response.setHeader("Content-Type", "text/plain", false);
+      response.write("hello");
+      response.finish();
+    },
+    30000 /* milliseconds */,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/temporaryFileBlob.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/temporaryFileBlob.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/temporaryFileBlob.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/temporaryFileBlob.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,20 +1,23 @@
 const CC = Components.Constructor;
 
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
-const BinaryOutputStream = CC("@mozilla.org/binaryoutputstream;1",
-                              "nsIBinaryOutputStream",
-                              "setOutputStream");
-const Timer = CC("@mozilla.org/timer;1",
-                 "nsITimer",
-                 "initWithCallback");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
+const BinaryOutputStream = CC(
+  "@mozilla.org/binaryoutputstream;1",
+  "nsIBinaryOutputStream",
+  "setOutputStream"
+);
+const Timer = CC("@mozilla.org/timer;1", "nsITimer", "initWithCallback");
 
 function handleRequest(request, response) {
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
   var bodyBytes = [];
-  while ((bodyAvail = bodyStream.available()) > 0)
+  while ((bodyAvail = bodyStream.available()) > 0) {
     Array.prototype.push.apply(bodyBytes, bodyStream.readByteArray(bodyAvail));
+  }
 
   var bos = new BinaryOutputStream(response.bodyOutputStream);
 
@@ -23,11 +26,19 @@
   var part = bodyBytes.splice(0, 256);
   bos.writeByteArray(part);
 
-  response.timer1 = new Timer(function(timer) {
-    bos.writeByteArray(bodyBytes);
-  }, 1000, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
-
-  response.timer2 = new Timer(function(timer) {
-    response.finish();
-  }, 2000, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  response.timer1 = new Timer(
+    function(timer) {
+      bos.writeByteArray(bodyBytes);
+    },
+    1000,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
+
+  response.timer2 = new Timer(
+    function(timer) {
+      response.finish();
+    },
+    2000,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/worker_xhr_cors_redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/worker_xhr_cors_redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/worker_xhr_cors_redirect.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/worker_xhr_cors_redirect.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,7 +1,7 @@
 function handleRequest(request, response) {
   response.setHeader("Access-Control-Allow-Origin", "*");
 
-  if (request.queryString == 'redirect') {
+  if (request.queryString == "redirect") {
     response.setStatusLine("1.1", 302, "Found");
     response.setHeader("Location", "worker_xhr_cors_redirect.sjs");
   } else {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/worker_xhr_headers_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/worker_xhr_headers_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xhr/tests/worker_xhr_headers_server.sjs	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xhr/tests/worker_xhr_headers_server.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -9,7 +9,7 @@
     case "POST":
       try {
         var optionsHost = request.getHeader("options-host");
-      } catch(e) { }
+      } catch (e) {}
 
       var headerFound = false;
       if (optionsHost) {
@@ -20,7 +20,7 @@
 
       try {
         var emptyHeader = "nada" + request.getHeader("empty");
-      } catch(e) { }
+      } catch (e) {}
 
       if (emptyHeader && emptyHeader == "nada") {
         setState("emptyHeader", "nada");
@@ -28,16 +28,16 @@
       }
       if (headerFound) {
         return;
-      } else {
-        break;
       }
+      break;
 
     case "OPTIONS":
       if (getState("optionsHost") == request.host) {
         try {
-          var optionsHeader =
-            request.getHeader("Access-Control-Request-Headers");
-        } catch(e) { }
+          var optionsHeader = request.getHeader(
+            "Access-Control-Request-Headers"
+          );
+        } catch (e) {}
         setState("optionsHeader", "'" + optionsHeader + "'");
       }
       break;
@@ -46,12 +46,15 @@
       response.setHeader("Cache-Control", "no-cache", false);
       response.setHeader("Content-Type", "text/plain", false);
 
-      if (getState("postHost") == request.host &&
-          getState("emptyHeader") == "nada") {
+      if (
+        getState("postHost") == request.host &&
+        getState("emptyHeader") == "nada"
+      ) {
         var result = getState("optionsHeader");
         if (result) {
-          response.write("Success: expected OPTIONS request with " + result +
-                         " header");
+          response.write(
+            "Success: expected OPTIONS request with " + result + " header"
+          );
         } else if (getState("badGet") == 1) {
           response.write("Error: unexpected GET request");
         }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/dom/xul/nsXULElement.cpp firefox-trunk-95.0~a1~hg20211020r596404/dom/xul/nsXULElement.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/dom/xul/nsXULElement.cpp	2021-10-17 14:42:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/dom/xul/nsXULElement.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -1580,12 +1580,6 @@
 static nsresult WriteStencil(nsIObjectOutputStream* aStream, JSContext* aCx,
                              const JS::ReadOnlyCompileOptions& aOptions,
                              JS::Stencil* aStencil) {
-  uint8_t flags = 0;  // We don't have flags anymore.
-  nsresult rv = aStream->Write8(flags);
-  if (NS_FAILED(rv)) {
-    return rv;
-  }
-
   JS::TranscodeBuffer buffer;
   JS::TranscodeResult code;
   code = JS::EncodeStencil(aCx, aOptions, aStencil, buffer);
@@ -1604,7 +1598,7 @@
   if (size > UINT32_MAX) {
     return NS_ERROR_FAILURE;
   }
-  rv = aStream->Write32(size);
+  nsresult rv = aStream->Write32(size);
   if (NS_SUCCEEDED(rv)) {
     // Ideally we could just pass "buffer" here.  See bug 1566574.
     rv = aStream->WriteBytes(Span(buffer.begin(), size));
@@ -1616,12 +1610,6 @@
 static nsresult ReadStencil(nsIObjectInputStream* aStream, JSContext* aCx,
                             const JS::ReadOnlyCompileOptions& aOptions,
                             JS::Stencil** aStencilOut) {
-  uint8_t flags;
-  nsresult rv = aStream->Read8(&flags);
-  if (NS_FAILED(rv)) {
-    return rv;
-  }
-
   // We don't serialize mutedError-ness of scripts, which is fine as long as
   // we only serialize system and XUL-y things. We can detect this by checking
   // where the caller wants us to deserialize.
@@ -1633,7 +1621,7 @@
                      JS::CurrentGlobalOrNull(aCx) == loaderGlobal);
 
   uint32_t size;
-  rv = aStream->Read32(&size);
+  nsresult rv = aStream->Read32(&size);
   if (NS_FAILED(rv)) {
     return rv;
   }
@@ -1984,10 +1972,8 @@
 
   JS::CompileOptions options(aCx);
   FillCompileOptions(options);
-  // We don't need setIntroductionType and setFileAndLine here, unlike
-  // nsXULPrototypeScript::Compile.
-  // mStencil already contains the information.
-  aScript.set(JS::InstantiateGlobalStencil(aCx, options, mStencil));
+  JS::InstantiateOptions instantiateOptions(options);
+  aScript.set(JS::InstantiateGlobalStencil(aCx, instantiateOptions, mStencil));
   if (!aScript) {
     JS_ClearPendingException(aCx);
     return NS_ERROR_OUT_OF_MEMORY;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/editor/libeditor/tests/file_bug611182.sjs firefox-trunk-95.0~a1~hg20211020r596404/editor/libeditor/tests/file_bug611182.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/editor/libeditor/tests/file_bug611182.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/editor/libeditor/tests/file_bug611182.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -40,11 +40,13 @@
   },
   {
     ct: "application/xhtml+xml",
-    val: '<html xmlns="http://www.w3.org/1999/xhtml"><body contenteditable="true">fooz bar</body></html>',
+    val:
+      '<html xmlns="http://www.w3.org/1999/xhtml"><body contenteditable="true">fooz bar</body></html>',
   },
   {
     ct: "application/xhtml+xml",
-    val: '<html xmlns="http://www.w3.org/1999/xhtml" contenteditable="true"><body>fooz bar</body></html>',
+    val:
+      '<html xmlns="http://www.w3.org/1999/xhtml" contenteditable="true"><body>fooz bar</body></html>',
   },
   {
     ct: "text/html",
@@ -52,175 +54,189 @@
   },
   {
     ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'var old = document.body;' +
-            'old.parentNode.removeChild(old);' +
-            'var r = document.documentElement;' +
-            'var b = document.createElement("body");' +
-            'r.appendChild(b);' +
-            'b.appendChild(document.createTextNode("fooz bar"));' +
-            'b.contentEditable = "true";' +
-         '};' +
-        '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-           'onload = function() {' +
-             'var old = document.body;' +
-             'old.parentNode.removeChild(old);' +
-             'var r = document.documentElement;' +
-             'var b = document.createElement("body");' +
-             'b.appendChild(document.createTextNode("fooz bar"));' +
-             'b.contentEditable = "true";' +
-             'r.appendChild(b);' +
-           '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'var old = document.body;' +
-            'old.parentNode.removeChild(old);' +
-            'var r = document.documentElement;' +
-            'var b = document.createElement("body");' +
-            'r.appendChild(b);' +
-            'b.appendChild(document.createTextNode("fooz bar"));' +
-            'b.setAttribute("contenteditable", "true");' +
-          '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'var old = document.body;' +
-            'old.parentNode.removeChild(old);' +
-            'var r = document.documentElement;' +
-            'var b = document.createElement("body");' +
-            'b.appendChild(document.createTextNode("fooz bar"));' +
-            'b.setAttribute("contenteditable", "true");' +
-            'r.appendChild(b);' +
-          '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-           'onload = function() {' +
-             'var old = document.body;' +
-             'old.parentNode.removeChild(old);' +
-             'var r = document.documentElement;' +
-             'var b = document.createElement("body");' +
-             'r.appendChild(b);' +
-             'b.contentEditable = "true";' +
-             'b.appendChild(document.createTextNode("fooz bar"));' +
-           '};' +
-          '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'var old = document.body;' +
-            'old.parentNode.removeChild(old);' +
-            'var r = document.documentElement;' +
-            'var b = document.createElement("body");' +
-            'b.contentEditable = "true";' +
-            'r.appendChild(b);' +
-            'b.appendChild(document.createTextNode("fooz bar"));' +
-          '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'var old = document.body;' +
-            'old.parentNode.removeChild(old);' +
-            'var r = document.documentElement;' +
-            'var b = document.createElement("body");' +
-            'r.appendChild(b);' +
-            'b.setAttribute("contenteditable", "true");' +
-            'b.appendChild(document.createTextNode("fooz bar"));' +
-          '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'var old = document.body;' +
-            'old.parentNode.removeChild(old);' +
-            'var r = document.documentElement;' +
-            'var b = document.createElement("body");' +
-            'b.setAttribute("contenteditable", "true");' +
-            'r.appendChild(b);' +
-            'b.appendChild(document.createTextNode("fooz bar"));' +
-          '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'document.open();' +
-            'document.write("<body contenteditable>fooz bar</body>");' +
-            'document.close();' +
-          '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: 'data:text/html,<html><script>' +
-          'onload = function() {' +
-            'document.open();' +
-            'document.write("<body contenteditable><div>fooz bar</div></body>");' +
-            'document.close();' +
-          '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'document.open();' +
-            'document.write("<body contenteditable><span>fooz bar</span></body>");' +
-            'document.close();' +
-          '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'document.open();' +
-            'document.write("<p contenteditable style=\\"outline: none\\">fooz bar</p>");' +
-            'document.close();' +
-           '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'document.open();' +
-            'document.write("<html contenteditable>fooz bar</html>");' +
-            'document.close();' +
-          '};' +
-         '<\/script><body></body></html>',
-  },
-  {
-    ct: "text/html",
-    val: '<html><script>' +
-          'onload = function() {' +
-            'document.open();' +
-            'document.write("<html contenteditable><body>fooz bar</body></html>");' +
-            'document.close();' +
-          '};' +
-         '<\/script><body></body></html>',
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "var old = document.body;" +
+      "old.parentNode.removeChild(old);" +
+      "var r = document.documentElement;" +
+      'var b = document.createElement("body");' +
+      "r.appendChild(b);" +
+      'b.appendChild(document.createTextNode("fooz bar"));' +
+      'b.contentEditable = "true";' +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "var old = document.body;" +
+      "old.parentNode.removeChild(old);" +
+      "var r = document.documentElement;" +
+      'var b = document.createElement("body");' +
+      'b.appendChild(document.createTextNode("fooz bar"));' +
+      'b.contentEditable = "true";' +
+      "r.appendChild(b);" +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "var old = document.body;" +
+      "old.parentNode.removeChild(old);" +
+      "var r = document.documentElement;" +
+      'var b = document.createElement("body");' +
+      "r.appendChild(b);" +
+      'b.appendChild(document.createTextNode("fooz bar"));' +
+      'b.setAttribute("contenteditable", "true");' +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "var old = document.body;" +
+      "old.parentNode.removeChild(old);" +
+      "var r = document.documentElement;" +
+      'var b = document.createElement("body");' +
+      'b.appendChild(document.createTextNode("fooz bar"));' +
+      'b.setAttribute("contenteditable", "true");' +
+      "r.appendChild(b);" +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "var old = document.body;" +
+      "old.parentNode.removeChild(old);" +
+      "var r = document.documentElement;" +
+      'var b = document.createElement("body");' +
+      "r.appendChild(b);" +
+      'b.contentEditable = "true";' +
+      'b.appendChild(document.createTextNode("fooz bar"));' +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "var old = document.body;" +
+      "old.parentNode.removeChild(old);" +
+      "var r = document.documentElement;" +
+      'var b = document.createElement("body");' +
+      'b.contentEditable = "true";' +
+      "r.appendChild(b);" +
+      'b.appendChild(document.createTextNode("fooz bar"));' +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "var old = document.body;" +
+      "old.parentNode.removeChild(old);" +
+      "var r = document.documentElement;" +
+      'var b = document.createElement("body");' +
+      "r.appendChild(b);" +
+      'b.setAttribute("contenteditable", "true");' +
+      'b.appendChild(document.createTextNode("fooz bar"));' +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "var old = document.body;" +
+      "old.parentNode.removeChild(old);" +
+      "var r = document.documentElement;" +
+      'var b = document.createElement("body");' +
+      'b.setAttribute("contenteditable", "true");' +
+      "r.appendChild(b);" +
+      'b.appendChild(document.createTextNode("fooz bar"));' +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "document.open();" +
+      'document.write("<body contenteditable>fooz bar</body>");' +
+      "document.close();" +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "data:text/html,<html><script>" +
+      "onload = function() {" +
+      "document.open();" +
+      'document.write("<body contenteditable><div>fooz bar</div></body>");' +
+      "document.close();" +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "document.open();" +
+      'document.write("<body contenteditable><span>fooz bar</span></body>");' +
+      "document.close();" +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "document.open();" +
+      'document.write("<p contenteditable style=\\"outline: none\\">fooz bar</p>");' +
+      "document.close();" +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "document.open();" +
+      'document.write("<html contenteditable>fooz bar</html>");' +
+      "document.close();" +
+      "};" +
+      "</script><body></body></html>",
+  },
+  {
+    ct: "text/html",
+    val:
+      "<html><script>" +
+      "onload = function() {" +
+      "document.open();" +
+      'document.write("<html contenteditable><body>fooz bar</body></html>");' +
+      "document.close();" +
+      "};" +
+      "</script><body></body></html>",
   },
 ];
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/editor/libeditor/tests/file_bug795418-2.sjs firefox-trunk-95.0~a1~hg20211020r596404/editor/libeditor/tests/file_bug795418-2.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/editor/libeditor/tests/file_bug795418-2.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/editor/libeditor/tests/file_bug795418-2.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -4,5 +4,7 @@
 function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "application/xhtml+xml", false);
-  response.write("<html contenteditable='' xmlns='http://www.w3.org/1999/xhtml'><span>AB</span></html>");
+  response.write(
+    "<html contenteditable='' xmlns='http://www.w3.org/1999/xhtml'><span>AB</span></html>"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/editor/libeditor/tests/file_sanitizer_on_paste.sjs firefox-trunk-95.0~a1~hg20211020r596404/editor/libeditor/tests/file_sanitizer_on_paste.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/editor/libeditor/tests/file_sanitizer_on_paste.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/editor/libeditor/tests/file_sanitizer_on_paste.sjs	2021-10-20 19:28:20.000000000 +0000
@@ -1,16 +1,19 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (request.queryString.indexOf("report") != -1) {
     response.setHeader("Content-Type", "text/javascript", false);
     if (getState("loaded") == "loaded") {
-      response.write("ok(false, 'There was an attempt to preload the image.');");      
+      response.write(
+        "ok(false, 'There was an attempt to preload the image.');"
+      );
     } else {
-      response.write("ok(true, 'There was no attempt to preload the image.');");      
+      response.write("ok(true, 'There was no attempt to preload the image.');");
     }
     response.write("SimpleTest.finish();");
   } else {
     setState("loaded", "loaded");
     response.setHeader("Content-Type", "image/svg", false);
-    response.write("<svg xmlns='http://www.w3.org/2000/svg'>Not supposed to load this</svg>");
+    response.write(
+      "<svg xmlns='http://www.w3.org/2000/svg'>Not supposed to load this</svg>"
+    );
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/editor/spellchecker/EditorSpellCheck.cpp firefox-trunk-95.0~a1~hg20211020r596404/editor/spellchecker/EditorSpellCheck.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/editor/spellchecker/EditorSpellCheck.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/editor/spellchecker/EditorSpellCheck.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -893,7 +893,7 @@
 
     // Required dictionary was not available. Try to get a dictionary
     // matching at least language part of dictName.
-    mozilla::intl::Locale loc = mozilla::intl::Locale(dictName);
+    mozilla::intl::MozLocale loc = mozilla::intl::MozLocale(dictName);
     nsAutoCString langCode(loc.GetLanguage());
 
     // Try dictionary.spellchecker preference, if it starts with langCode,
@@ -916,7 +916,8 @@
       // equlas applocation locale language.
       LocaleService::GetInstance()->GetAppLocaleAsBCP47(appLocaleStr);
       if (!appLocaleStr.IsEmpty()) {
-        mozilla::intl::Locale appLoc = mozilla::intl::Locale(appLocaleStr);
+        mozilla::intl::MozLocale appLoc =
+            mozilla::intl::MozLocale(appLocaleStr);
         if (langCode.Equals(appLoc.GetLanguage())) {
           BuildDictionaryList(appLocaleStr, dictList,
                               DICT_COMPARE_CASE_INSENSITIVE, tryDictList);
@@ -928,7 +929,8 @@
       nsAutoCString sysLocaleStr;
       OSPreferences::GetInstance()->GetSystemLocale(sysLocaleStr);
       if (!sysLocaleStr.IsEmpty()) {
-        mozilla::intl::Locale sysLoc = mozilla::intl::Locale(sysLocaleStr);
+        mozilla::intl::MozLocale sysLoc =
+            mozilla::intl::MozLocale(sysLocaleStr);
         if (langCode.Equals(sysLoc.GetLanguage())) {
           BuildDictionaryList(sysLocaleStr, dictList,
                               DICT_COMPARE_CASE_INSENSITIVE, tryDictList);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/.eslintignore firefox-trunk-95.0~a1~hg20211020r596404/.eslintignore
--- firefox-trunk-95.0~a1~hg20211017r596111/.eslintignore	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/.eslintignore	2021-10-20 19:28:14.000000000 +0000
@@ -76,6 +76,8 @@
 devtools/client/netmonitor/test/xhr_bundle.js
 devtools/client/webconsole/test/browser/code_bundle_nosource.js
 devtools/client/webconsole/test/browser/code_bundle_invalidmap.js
+devtools/client/webconsole/test/browser/test-autocomplete-mapped.js
+devtools/client/webconsole/test/browser/test-autocomplete-mapped.src.js
 devtools/server/tests/xpcshell/setBreakpoint*
 devtools/server/tests/xpcshell/sourcemapped.js
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/.eslintrc.js firefox-trunk-95.0~a1~hg20211020r596404/.eslintrc.js
--- firefox-trunk-95.0~a1~hg20211017r596111/.eslintrc.js	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/.eslintrc.js	2021-10-20 19:28:14.000000000 +0000
@@ -355,7 +355,6 @@
         "no-nested-ternary": "off",
         "no-new-object": "off",
         "no-new-wrappers": "off",
-        "no-octal": "off",
         "no-redeclare": "off",
         "no-return-await": "off",
         "no-restricted-globals": "off",
@@ -474,7 +473,6 @@
         "no-empty": "off",
         "no-eval": "off",
         "no-lone-blocks": "off",
-        "no-octal": "off",
         "no-redeclare": "off",
         "no-shadow": "off",
         "no-throw-literal": "off",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/2d/MacIOSurface.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/2d/MacIOSurface.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/2d/MacIOSurface.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/2d/MacIOSurface.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -97,11 +97,11 @@
 size_t CreatePlaneDictionary(CFTypeRefPtr<CFMutableDictionaryRef>& aDict,
                              const gfx::IntSize& aSize, size_t aOffset,
                              size_t aBytesPerPixel) {
-  size_t bytesPerRow = IOSurfaceAlignProperty(kIOSurfaceBytesPerRow,
+  size_t bytesPerRow = IOSurfaceAlignProperty(kIOSurfacePlaneBytesPerRow,
                                               aSize.width * aBytesPerPixel);
   // Add a SIMD register worth of extra bytes to the end of the allocation for
   // SWGL.
-  size_t totalBytes = IOSurfaceAlignProperty(kIOSurfaceAllocSize,
+  size_t totalBytes = IOSurfaceAlignProperty(kIOSurfacePlaneSize,
                                              aSize.height * bytesPerRow + 16);
 
   aDict = CFTypeRefPtr<CFMutableDictionaryRef>::WrapUnderCreateRule(
@@ -114,7 +114,7 @@
   AddDictionaryInt(aDict, kIOSurfacePlaneBytesPerRow, bytesPerRow);
   AddDictionaryInt(aDict, kIOSurfacePlaneOffset, aOffset);
   AddDictionaryInt(aDict, kIOSurfacePlaneSize, totalBytes);
-  AddDictionaryInt(aDict, kIOSurfaceBytesPerElement, aBytesPerPixel);
+  AddDictionaryInt(aDict, kIOSurfacePlaneBytesPerElement, aBytesPerPixel);
 
   return totalBytes;
 }
@@ -150,11 +150,15 @@
   }
 
   CFTypeRefPtr<CFMutableDictionaryRef> planeProps[2];
-  size_t planeTotalBytes = CreatePlaneDictionary(planeProps[0], aYSize, 0, 1);
-  planeTotalBytes +=
-      CreatePlaneDictionary(planeProps[1], aCbCrSize, planeTotalBytes, 2);
+  size_t yPlaneBytes = CreatePlaneDictionary(planeProps[0], aYSize, 0, 1);
+  size_t cbCrOffset =
+      IOSurfaceAlignProperty(kIOSurfacePlaneOffset, yPlaneBytes);
+  size_t cbCrPlaneBytes =
+      CreatePlaneDictionary(planeProps[1], aCbCrSize, cbCrOffset, 2);
+  size_t totalBytes =
+      IOSurfaceAlignProperty(kIOSurfaceAllocSize, cbCrOffset + cbCrPlaneBytes);
 
-  AddDictionaryInt(props, kIOSurfaceAllocSize, planeTotalBytes);
+  AddDictionaryInt(props, kIOSurfaceAllocSize, totalBytes);
 
   auto array = CFTypeRefPtr<CFArrayRef>::WrapUnderCreateRule(
       CFArrayCreate(kCFAllocatorDefault, (const void**)planeProps, 2,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/config/gfxVars.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/config/gfxVars.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/config/gfxVars.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/config/gfxVars.h	2021-10-20 19:28:21.000000000 +0000
@@ -30,7 +30,6 @@
   _(BrowserTabsRemoteAutostart, bool, false)                       \
   _(ContentBackend, BackendType, BackendType::NONE)                \
   _(SoftwareBackend, BackendType, BackendType::NONE)               \
-  _(TileSize, IntSize, IntSize(-1, -1))                            \
   _(OffscreenFormat, gfxImageFormat,                               \
     mozilla::gfx::SurfaceFormat::X8R8G8B8_UINT32)                  \
   _(RequiresAcceleratedGLContextForCompositorOGL, bool, false)     \
@@ -63,6 +62,8 @@
   _(GREDirectory, nsString, nsString())                            \
   _(ProfDirectory, nsString, nsString())                           \
   _(AllowD3D11KeyedMutex, bool, false)                             \
+  _(SwapIntervalGLX, bool, false)                                  \
+  _(SwapIntervalEGL, bool, false)                                  \
   _(SystemTextQuality, int32_t, 5 /* CLEARTYPE_QUALITY */)         \
   _(SystemTextClearTypeLevel, float, 1.0f)                         \
   _(SystemTextEnhancedContrast, float, 1.0f)                       \
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/docs/AsyncPanZoom.rst firefox-trunk-95.0~a1~hg20211020r596404/gfx/docs/AsyncPanZoom.rst
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/docs/AsyncPanZoom.rst	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/docs/AsyncPanZoom.rst	2021-10-20 19:28:21.000000000 +0000
@@ -141,13 +141,13 @@
 responsively. This means that we want independent asynchronous panning
 for both the top-level page and the iframe. In addition to iframes,
 elements that have the overflow:scroll CSS property set are also
-scrollable. In the scrollable elements are arranged in a tree structure,
-and in the APZ code we have a matching tree of AsyncPanZoomController
-(APZC) objects, one for each scrollable element. To manage this tree of
-APZC instances, we have a single APZCTreeManager object. Each APZC is
-relatively independent and handles the scrolling for its associated
-scrollable element, but there are some cases in which they need to
-interact; these cases are described in the sections below.
+scrollable. In the display list, scrollable elements are arranged in a
+tree structure, and in the APZ code we have a matching tree of
+AsyncPanZoomController (APZC) objects, one for each scrollable element.
+To manage this tree of APZC instances, we have a single APZCTreeManager
+object. Each APZC is relatively independent and handles the scrolling for
+its associated scrollable element, but there are some cases in which they
+need to interact; these cases are described in the sections below.
 
 Hit detection
 ~~~~~~~~~~~~~
@@ -187,6 +187,8 @@
 “fling handoff” in the case where analogous behaviour results from the
 scrolling momentum of the page after the user has lifted their finger).
 
+.. _input-event-untransformation:
+
 Input event untransformation
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -517,14 +519,15 @@
 scroll normally.
 
 Note: with Fission (where inactive scroll frames would make it impossible
-to target the correct process in all situations) and WebRender (which
-makes displayports more lightweight as the actual rendering is offloaded
-to the compositor and can be done on demand), inactive scroll frames are
-being phased out, and we are moving towards a model where all scroll
-frames with nonempty scroll ranges are active and get a displayport and
-an APZC. To conserve memory, displayports for scroll frames which have
-not been recently scrolled are kept to a "minimal" size equal to the
-viewport size.
+to target the correct process in all situations; see
+:ref:`this section <fission-hit-testing>` for more details) and WebRender
+(which makes displayports more lightweight as the actual rendering is
+offloaded to the compositor and can be done on demand), inactive scroll
+frames are being phased out, and we are moving towards a model where all
+scroll frames with nonempty scroll ranges are active and get a
+displayport and an APZC. To conserve memory, displayports for scroll
+frames which have not been recently scrolled are kept to a "minimal" size
+equal to the viewport size.
 
 WebRender Integration
 ~~~~~~~~~~~~~~~~~~~~~
@@ -566,6 +569,11 @@
 relationships are between APZCs, and what content is subject to what
 transforms.
 
+An additional use of the HitTestingTree is to allow APZ to keep content
+processes up to date about enclosing transforms that they are subject to.
+See :ref:`this section <sending-transforms-to-content-processes>` for
+more details.
+
 (In the past, with the Layers backend, the HitTestingTree was also used
 for compositor hit testing, hence the name. This is no longer the case,
 and there may be opportunities to simplify the tree as a result.)
@@ -579,7 +587,7 @@
   metadata applying to a subtree of such layers). In the Layers backend,
   such content would be rendered into a single texture which could then
   be moved asynchronously at composite time. Since a layer of content can
-  be scrolled by multiple scroll (nested) scroll frames, a
+  be scrolled by multiple (nested) scroll frames, a
   WebRenderLayerScrollData may contain scroll metadata for more than one
   scroll frame.
 * WebRenderScrollDataWrapper, which wraps WebRenderLayerScrollData
@@ -588,7 +596,7 @@
   1:1 correspondence with HitTestingTreeNodes.
 
 It's not clear whether the distinction between WebRenderLayerScrollData
-and WebRenderScrollDataWrapper still useful in a WebRender-only world.
+and WebRenderScrollDataWrapper is still useful in a WebRender-only world.
 The code could potentially be revised such that we directly build and
 store nodes of a single type with the behaviour of
 WebRenderScrollDataWrapper.
@@ -684,6 +692,89 @@
 animations to advance to the next timestep (usually the next vsync). This
 happens just before reading the APZ transforms.
 
+Fission Integration
+~~~~~~~~~~~~~~~~~~~
+
+This section describes how APZ interacts with the Fission (Site Isolation)
+project.
+
+Introduction
+^^^^^^^^^^^^
+
+Fission is an architectural change motivated by security considerations,
+where web content from each origin is isolated in its own process. Since
+a page can contain a mixture of content from different origins (for
+example, the top level page can be content from origin A, and it can
+contain an iframe with content from origin B), that means that rendering
+and interacting with a page can now involve coordination between APZ and
+multiple content processes.
+
+.. _fission-hit-testing:
+
+Content Process Selection for Input Events
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Input events are initially received in the browser's parent process.
+With Fission, the browser needs to decide which of possibly several
+content processes an event is targeting.
+
+Since process boundaries correspond to iframe (subdocument) boundaries,
+and every (html) document has a root scroll frame, process boundaries are
+therefore also scroll frame boundaries. Since APZ already needs a hit
+test mechanism to be able to determine which scroll frame an event
+targets, this hit test mechanism was a good fit to also use to determine
+which content process an event targets.
+
+APZ's hit test was therefore expanded to serve this purpose as well. This
+mostly required only minor modifications, such as making sure that APZ
+knows about the root scroll frames of iframes even if they're not
+scrollable. Since APZ already needs to process all input events to
+potentially apply :ref:`untransformations <input-event-untransformation>`
+related to async scrolling, as part of this process it now also labels
+input events with information identifying which content process they
+target.
+
+Hit Testing Accuracy
+^^^^^^^^^^^^^^^^^^^^
+
+Prior to Fission, APZ's hit test could afford to be somewhat inaccurate,
+as it could fall back on the dispatch-to-content mechanism to wait for
+a more accurate answer from the main thread if necessary, suffering a
+performance cost only (not a correctness cost).
+
+With Fission, an inaccurate compositor hit test now implies a correctness
+cost, as there is no cross-process main-thread fallback mechanism.
+(Such a mechanism was considered, but judged to require too much
+complexity and IPC traffic to be worth it.)
+
+Luckily, with WebRender the compositor has much more detailed information
+available to use for hit testing than it did with Layers. For example,
+the compositor can perform accurate hit testing even in the presence of
+irregular shapes such as rounded corners.
+
+APZ leverages WebRender's more accurate hit testing ability to aim to
+accurately select the target process (and target scroll frame) for an
+event in general.
+
+One consequence of this is that the dispatch-to-content mechanism is now
+used less often than before (its primary remaining use is handling
+`preventDefault()`).
+
+.. _sending-transforms-to-content-processes:
+
+Sending Transforms To Content Processes
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Content processes sometimes need to be able to convert between screen
+coordinates and their local coordinates. To do this, they need to know
+about any transforms that their containing iframe and its ancestors are
+subject to, including async transforms (particularly in cases where the
+async transforms persist for more than just a few frames).
+
+APZ has information about these transforms in its HitTestingTree. With
+Fission, APZ periodically sends content processes information about these
+transforms so that they are kept relatively up to date.
+
 Threading / Locking Overview
 ----------------------------
 
@@ -733,11 +824,11 @@
 **The lock ordering is as follows**:
 
 1. UI main
-2. GPU main              (only if GPU enabled)
+2. GPU main (only if GPU process enabled)
 3. Compositor thread
-4. SceneBuilder thread   (only if WR enabled)
+4. SceneBuilder thread
 5. **APZ tree lock**
-6. RenderBackend thread  (only if WR enabled)
+6. RenderBackend thread
 7. **APZC map lock**
 8. **APZC instance lock**
 9. **APZ test lock**
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/gl/GLContextProviderEGL.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/gl/GLContextProviderEGL.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/gl/GLContextProviderEGL.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/gl/GLContextProviderEGL.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -310,26 +310,34 @@
 #ifdef MOZ_GTK_WAYLAND
   if (surface && GdkIsWaylandDisplay()) {
     // Make eglSwapBuffers() non-blocking on wayland
-    egl->fSwapInterval(0);
+    const int interval = gfxVars::SwapIntervalEGL() ? 1 : 0;
+    egl->fSwapInterval(interval);
   }
 #endif
   if (aHardwareWebRender && egl->mLib->IsANGLE()) {
     MOZ_ASSERT(doubleBuffered);
-    egl->fSwapInterval(0);
+    const int interval = gfxVars::SwapIntervalEGL() ? 1 : 0;
+    egl->fSwapInterval(interval);
   }
   return gl.forget();
 }
 
 already_AddRefed<GLContext> GLContextEGLFactory::Create(
     EGLNativeWindowType aWindow, bool aHardwareWebRender) {
-  RefPtr<GLContext> glContext;
-#if !defined(MOZ_WIDGET_ANDROID)
-  glContext = CreateImpl(aWindow, aHardwareWebRender, /* aUseGles */ false);
-#endif  // !defined(MOZ_WIDGET_ANDROID)
+  bool preferGles;
+#if defined(MOZ_WIDGET_ANDROID)
+  preferGles = true;
+#else
+  preferGles = StaticPrefs::gfx_egl_prefer_gles_enabled_AtStartup();
+#endif  // defined(MOZ_WIDGET_ANDROID)
 
+  RefPtr<GLContext> glContext =
+      CreateImpl(aWindow, aHardwareWebRender, preferGles);
+#if !defined(MOZ_WIDGET_ANDROID)
   if (!glContext) {
-    glContext = CreateImpl(aWindow, aHardwareWebRender, /* aUseGles */ true);
+    glContext = CreateImpl(aWindow, aHardwareWebRender, !preferGles);
   }
+#endif  // !defined(MOZ_WIDGET_ANDROID)
   return glContext.forget();
 }
 
@@ -494,8 +502,10 @@
   MOZ_ASSERT(ok);
 #ifdef MOZ_GTK_WAYLAND
   if (mSurface && GdkIsWaylandDisplay()) {
-    // Make eglSwapBuffers() non-blocking on wayland
-    mEgl->fSwapInterval(0);
+    // The swap interval pref is false by default so that eglSwapBuffers()
+    // is non-blocking on wayland.
+    const int interval = gfxVars::SwapIntervalEGL() ? 1 : 0;
+    mEgl->fSwapInterval(interval);
   }
 #endif
   return ok;
@@ -1179,12 +1189,21 @@
 RefPtr<GLContextEGL> GLContextEGL::CreateEGLPBufferOffscreenContext(
     const std::shared_ptr<EglDisplay> display, const GLContextCreateDesc& desc,
     const mozilla::gfx::IntSize& size, nsACString* const out_failureId) {
+  bool preferGles;
+#if defined(MOZ_WIDGET_ANDROID)
+  preferGles = true;
+#else
+  preferGles = StaticPrefs::gfx_egl_prefer_gles_enabled_AtStartup();
+#endif  // defined(MOZ_WIDGET_ANDROID)
+
   RefPtr<GLContextEGL> gl = CreateEGLPBufferOffscreenContextImpl(
-      display, desc, size, /* useGles */ false, out_failureId);
+      display, desc, size, preferGles, out_failureId);
+#if !defined(MOZ_WIDGET_ANDROID)
   if (!gl) {
-    gl = CreateEGLPBufferOffscreenContextImpl(
-        display, desc, size, /* useGles */ true, out_failureId);
+    gl = CreateEGLPBufferOffscreenContextImpl(display, desc, size, !preferGles,
+                                              out_failureId);
   }
+#endif  // !defined(MOZ_WIDGET_ANDROID)
   return gl;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/gl/GLContextProviderGLX.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/gl/GLContextProviderGLX.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/gl/GLContextProviderGLX.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/gl/GLContextProviderGLX.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -482,8 +482,10 @@
     // Many GLX implementations default to blocking until the next
     // VBlank when calling glXSwapBuffers. We want to run unthrottled
     // in ASAP mode. See bug 1280744.
+    const bool swapInterval = gfxVars::SwapIntervalGLX();
     const bool isASAP = (StaticPrefs::layout_frame_rate() == 0);
-    mGLX->fSwapInterval(*mDisplay, mDrawable, isASAP ? 0 : 1);
+    const int interval = (swapInterval && !isASAP) ? 1 : 0;
+    mGLX->fSwapInterval(*mDisplay, mDrawable, interval);
   }
   return succeeded;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/src/HitTestingTreeNode.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/src/HitTestingTreeNode.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/src/HitTestingTreeNode.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/src/HitTestingTreeNode.h	2021-10-20 19:28:20.000000000 +0000
@@ -13,8 +13,8 @@
 #include "mozilla/layers/LayersTypes.h"          // for EventRegions
 #include "mozilla/layers/ScrollableLayerGuid.h"  // for ScrollableLayerGuid
 #include "mozilla/Maybe.h"                       // for Maybe
+#include "mozilla/RecursiveMutex.h"              // for RecursiveMutexAutoLock
 #include "mozilla/RefPtr.h"                      // for nsRefPtr
-
 namespace mozilla {
 namespace layers {
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/apz_test_utils.js firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/apz_test_utils.js
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/apz_test_utils.js	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/apz_test_utils.js	2021-10-20 19:28:21.000000000 +0000
@@ -775,14 +775,12 @@
 // each time this function is called.
 // The computed information is an object with three fields:
 //   utils: the nsIDOMWindowUtils instance for this window
-//   isWebRender: true if WebRender is enabled
 //   isWindow: true if the platform is Windows
 //   activateAllScrollFrames: true if prefs indicate all scroll frames are
 //                            activated with at least a minimal display port
 function getHitTestConfig() {
   if (!("hitTestConfig" in window)) {
     var utils = SpecialPowers.getDOMWindowUtils(window);
-    var isWebRender = utils.layerManagerType.startsWith("WebRender");
     var isWindows = getPlatform() == "windows";
     let activateAllScrollFrames =
       SpecialPowers.getBoolPref("apz.wr.activate_all_scroll_frames") ||
@@ -793,7 +791,6 @@
 
     window.hitTestConfig = {
       utils,
-      isWebRender,
       isWindows,
       activateAllScrollFrames,
     };
@@ -941,27 +938,15 @@
   // behaviour on different platforms which makes testing harder.
   var expectedHitInfo = APZHitResultFlags.VISIBLE | APZHitResultFlags.SCROLLBAR;
   if (params.expectThumb) {
-    // The thumb has listeners which are APZ-aware. With WebRender we are able
-    // to losslessly propagate this flag to APZ, but with non-WebRender the area
-    // ends up in the mDispatchToContentRegion which we then convert back to
-    // a IRREGULAR_AREA flag. This still works correctly since IRREGULAR_AREA
-    // will fall back to the main thread for everything.
-    if (config.isWebRender) {
-      expectedHitInfo |= APZHitResultFlags.APZ_AWARE_LISTENERS;
-      if (
-        !config.activateAllScrollFrames &&
-        params.layerState == LayerState.INACTIVE
-      ) {
-        expectedHitInfo |= APZHitResultFlags.INACTIVE_SCROLLFRAME;
-      }
-    } else {
-      expectedHitInfo |= APZHitResultFlags.IRREGULAR_AREA;
+    // The thumb has listeners which are APZ-aware.
+    expectedHitInfo |= APZHitResultFlags.APZ_AWARE_LISTENERS;
+    var expectActive =
+      config.activateAllScrollFrames || params.layerState == LayerState.ACTIVE;
+    if (!expectActive) {
+      expectedHitInfo |= APZHitResultFlags.INACTIVE_SCROLLFRAME;
     }
     // We do not generate the layers for thumbs on inactive scrollframes.
-    if (
-      params.layerState == LayerState.ACTIVE ||
-      config.activateAllScrollFrames
-    ) {
+    if (expectActive) {
       expectedHitInfo |= APZHitResultFlags.SCROLLBAR_THUMB;
     }
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/browser_test_group_fission.js firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/browser_test_group_fission.js
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/browser_test_group_fission.js	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/browser_test_group_fission.js	2021-10-20 19:28:20.000000000 +0000
@@ -22,9 +22,6 @@
     );
   }
 
-  var utils = SpecialPowers.getDOMWindowUtils(window);
-  var isWebRender = utils.layerManagerType.startsWith("WebRender");
-
   // Each of these subtests is a dictionary that contains:
   // file (required): filename of the subtest that will get opened in a new tab
   //   in the top-level fission-enabled browser window.
@@ -64,26 +61,12 @@
     { file: "helper_fission_initial_displayport.html" },
     { file: "helper_fission_checkerboard_severity.html" },
     { file: "helper_fission_setResolution.html" },
+    { file: "helper_fission_inactivescroller_positionedcontent.html" },
+    { file: "helper_fission_irregular_areas.html" },
+    // Bug 1576514: On WebRender this test casues an assertion.
+    // { file: "helper_fission_animation_styling_in_transformed_oopif.html", },
     // add additional tests here
   ];
-  // These tests are to ensure hit-testing works perfectly on the WR
-  // codepath. The layers codepath may need a main-thread fallback to get
-  // these working, but we can't use our synchronous hitTest(...) helpers
-  // for those anyway.
-  if (isWebRender) {
-    subtests = subtests.concat([
-      { file: "helper_fission_inactivescroller_positionedcontent.html" },
-      { file: "helper_fission_irregular_areas.html" },
-      // add WebRender-specific tests here
-    ]);
-  } else {
-    subtests = subtests.concat([
-      // Bug 1576514: On WebRender this test casues an assertion.
-      {
-        file: "helper_fission_animation_styling_in_transformed_oopif.html",
-      },
-    ]);
-  }
 
   // ccov builds run slower and need longer, so let's scale up the timeout
   // by the number of tests we're running.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_check_dp_size.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_check_dp_size.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_check_dp_size.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_check_dp_size.html	2021-10-20 19:28:20.000000000 +0000
@@ -100,13 +100,13 @@
       // but it gives a good idea that the good and bad values are far apart so
       // this test should be robust, and provides good context in the future if
       // this test starts failing.
-      await testOne( 50, 5.2, "(height 50)");                                        // good wr  256 non-wr 256, bad wr  256 non-wr  384
-      await testOne(128, 2.1, "(height128)");                                        // good wr  256 non-wr 256, bad wr  512 non-wr  640
-      await testOne(200, 2.0, "(height200)");                                        // good wr  384 non-wr 384, bad wr  768 non-wr  896
-      await testOne(256, 1.6, "(height256)");                                        // good wr  384 non-wr 384, bad wr  768 non-wr 1024
-      await testOne(329, 1.6, "(height329)");                                        // good wr  512 non-wr 512, bad wr  896 non-wr 1280
-      await testOne(500, 1.3, "(height500)");                                        // good wr  640 non-wr 640, bad wr 1280 non-wr 1920
-      await testOne(640, getHitTestConfig().isWebRender ? 1.7 : 1.3, "(height640)"); // good wr 1024 non-wr 768, bad wr 1536 non-wr 2432
+      await testOne( 50, 5.2, "(height 50)"); // good 256, bad 256
+      await testOne(128, 2.1, "(height128)"); // good 256, bad 512
+      await testOne(200, 2.0, "(height200)"); // good 384, bad 768
+      await testOne(256, 1.6, "(height256)"); // good 384, bad 768
+      await testOne(329, 1.6, "(height329)"); // good 512, bad 896
+      await testOne(500, 1.3, "(height500)"); // good 640, bad 280
+      await testOne(640, 1.7, "(height640)"); // good 1024, bad 1536
 
     }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_basic.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_basic.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_basic.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_basic.html	2021-10-20 19:28:20.000000000 +0000
@@ -25,12 +25,8 @@
   var apzaware = document.getElementById("apzaware");
 
   let expectedHitInfo = APZHitResultFlags.VISIBLE;
-  if (config.isWebRender) {
-    if (!config.activateAllScrollFrames) {
-      expectedHitInfo |= APZHitResultFlags.INACTIVE_SCROLLFRAME;
-    }
-  } else {
-    expectedHitInfo |= APZHitResultFlags.IRREGULAR_AREA;
+  if (!config.activateAllScrollFrames) {
+    expectedHitInfo |= APZHitResultFlags.INACTIVE_SCROLLFRAME;
   }
   checkHitResult(hitTest(centerOf(scroller)),
                  expectedHitInfo,
@@ -66,13 +62,11 @@
   await promiseApzFlushedRepaints();
   var scrollY = scroller.scrollTopMax;
   utils.setAsyncScrollOffset(scroller, 0, scrollY);
-  if (config.isWebRender) {
-    // Tick the refresh driver once to make sure the compositor has applied the
-    // async scroll offset (for APZ hit-testing this doesn't matter, but for
-    // WebRender hit-testing we need to make sure WR has the latest info).
-    utils.advanceTimeAndRefresh(16);
-    utils.restoreNormalRefresh();
-  }
+  // Tick the refresh driver once to make sure the compositor has applied the
+  // async scroll offset (for WebRender hit-testing we need to make sure WR has
+  // the latest info).
+  utils.advanceTimeAndRefresh(16);
+  utils.restoreNormalRefresh();
 
   var scrollerViewId = utils.getViewId(scroller);
 
@@ -88,8 +82,7 @@
   apzawarePosition.y -= scrollY; // APZ position
   checkHitResult(hitTest(apzawarePosition),
                  APZHitResultFlags.VISIBLE |
-                 (config.isWebRender ? APZHitResultFlags.APZ_AWARE_LISTENERS
-                                     : APZHitResultFlags.IRREGULAR_AREA),
+                 APZHitResultFlags.APZ_AWARE_LISTENERS,
                  scrollerViewId,
                  utils.getLayersId(),
                  "active scrollframe - apzaware block");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_checkerboard.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_checkerboard.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_checkerboard.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_checkerboard.html	2021-10-20 19:28:21.000000000 +0000
@@ -31,13 +31,11 @@
   await promiseApzFlushedRepaints();
   var scrollY = scroller.scrollTopMax;
   utils.setAsyncScrollOffset(scroller, 0, scrollY);
-  if (config.isWebRender) {
-    // Tick the refresh driver once to make sure the compositor has applied the
-    // async scroll offset (for APZ hit-testing this doesn't matter, but for
-    // WebRender hit-testing we need to make sure WR has the latest info).
-    utils.advanceTimeAndRefresh(16);
-    utils.restoreNormalRefresh();
-  }
+  // Tick the refresh driver once to make sure the compositor has applied the
+  // async scroll offset (for WebRender hit-testing we need to make sure WR has
+  // the latest info).
+  utils.advanceTimeAndRefresh(16);
+  utils.restoreNormalRefresh();
 
   var scrollerViewId = utils.getViewId(scroller);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_clippath.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_clippath.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_clippath.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_clippath.html	2021-10-20 19:28:20.000000000 +0000
@@ -35,8 +35,6 @@
   var config = getHitTestConfig();
   var utils = config.utils;
 
-  const wrTag = config.isWebRender ? "WebRender" : "Layers";
-
   // layerize the iframe
   var subwindow = document.getElementById("sub").contentWindow;
   var subscroller = subwindow.document.scrollingElement;
@@ -53,29 +51,27 @@
       APZHitResultFlags.VISIBLE,
       iframeViewId,
       layersId,
-      `${wrTag} (simple) uninteresting point inside the iframe`);
+      `(simple) uninteresting point inside the iframe`);
   checkHitResult(hitTest({ x: 500, y: 10 }),
       APZHitResultFlags.VISIBLE,
       rootViewId,
       layersId,
-      `${wrTag} (simple) uninteresting point in the root scroller`);
+      `(simple) uninteresting point in the root scroller`);
   checkHitResult(hitTest({ x: 110, y: 110 }),
       APZHitResultFlags.VISIBLE,
       iframeViewId,
       layersId,
-      `${wrTag} (simple) point in the iframe behind overlaying div, but outside the bounding box of the clip path`);
+      `(simple) point in the iframe behind overlaying div, but outside the bounding box of the clip path`);
   checkHitResult(hitTest({ x: 160, y: 160 }),
-      config.isWebRender ? APZHitResultFlags.VISIBLE
-                         : APZHitResultFlags.VISIBLE | APZHitResultFlags.IRREGULAR_AREA,
-      config.isWebRender ? iframeViewId : rootViewId,
+      APZHitResultFlags.VISIBLE,
+      iframeViewId,
       layersId,
-      `${wrTag} (simple) point in the iframe behind overlaying div, inside the bounding box of the clip path, but outside the actual clip shape`);
+      `(simple) point in the iframe behind overlaying div, inside the bounding box of the clip path, but outside the actual clip shape`);
   checkHitResult(hitTest({ x: 300, y: 200 }),
-      config.isWebRender ? APZHitResultFlags.VISIBLE
-                         : APZHitResultFlags.VISIBLE | APZHitResultFlags.IRREGULAR_AREA,
+      APZHitResultFlags.VISIBLE,
       rootViewId,
       layersId,
-      `${wrTag} (simple) point inside the clip shape of the overlaying div`);
+      `(simple) point inside the clip shape of the overlaying div`);
 
   // Now we turn the "simple" clip-path that WR can handle into a more complex
   // one that needs a mask. Then run the checks again; the expected results for
@@ -87,29 +83,27 @@
       APZHitResultFlags.VISIBLE,
       iframeViewId,
       layersId,
-      `${wrTag} (complex) uninteresting point inside the iframe`);
+      `(complex) uninteresting point inside the iframe`);
   checkHitResult(hitTest({ x: 500, y: 10 }),
       APZHitResultFlags.VISIBLE,
       rootViewId,
       layersId,
-      `${wrTag} (complex) uninteresting point in the root scroller`);
+      `(complex) uninteresting point in the root scroller`);
   checkHitResult(hitTest({ x: 110, y: 110 }),
       APZHitResultFlags.VISIBLE,
       iframeViewId,
       layersId,
-      `${wrTag} (complex) point in the iframe behind overlaying div, but outside the bounding box of the clip path`);
+      `(complex) point in the iframe behind overlaying div, but outside the bounding box of the clip path`);
   checkHitResult(hitTest({ x: 160, y: 160 }),
-      config.isWebRender ? APZHitResultFlags.VISIBLE
-                         : APZHitResultFlags.VISIBLE | APZHitResultFlags.IRREGULAR_AREA,
-      config.isWebRender ? iframeViewId : rootViewId,
+      APZHitResultFlags.VISIBLE,
+      iframeViewId,
       layersId,
-      `${wrTag} (complex) point in the iframe behind overlaying div, inside the bounding box of the clip path, but outside the actual clip shape`);
+      `(complex) point in the iframe behind overlaying div, inside the bounding box of the clip path, but outside the actual clip shape`);
   checkHitResult(hitTest({ x: 300, y: 200 }),
-      config.isWebRender ? APZHitResultFlags.VISIBLE
-                         : APZHitResultFlags.VISIBLE | APZHitResultFlags.IRREGULAR_AREA,
-      config.isWebRender ? iframeViewId : rootViewId,
+      APZHitResultFlags.VISIBLE,
+      iframeViewId,
       layersId,
-      `${wrTag} (complex) point inside the clip shape of the overlaying div`);
+      `(complex) point inside the clip shape of the overlaying div`);
 }
 
 waitUntilApzStable()
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_hoisted_scrollinfo.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_hoisted_scrollinfo.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_hoisted_scrollinfo.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_hoisted_scrollinfo.html	2021-10-20 19:28:20.000000000 +0000
@@ -64,11 +64,8 @@
   utils.setDisplayPortForElement(0, 0, 300, 500, scroller, 1);
   await promiseApzFlushedRepaints();
 
-  // Inactive scrollframe flags will round-trip through the dispatch-to-content
-  // region and end up as IRREGULAR_AREA when WebRender is disabled.
-  var expectedHitFlags = config.isWebRender
-    ? APZHitResultFlags.VISIBLE | APZHitResultFlags.INACTIVE_SCROLLFRAME
-    : APZHitResultFlags.VISIBLE | APZHitResultFlags.IRREGULAR_AREA;
+  var expectedHitFlags =
+    APZHitResultFlags.VISIBLE | APZHitResultFlags.INACTIVE_SCROLLFRAME;
   checkHitResult(hitTest(centerOf(scroller)),
                  expectedHitFlags,
                  utils.getViewId(scroller),
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_overscroll_subframe.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_overscroll_subframe.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_overscroll_subframe.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_overscroll_subframe.html	2021-10-20 19:28:20.000000000 +0000
@@ -41,9 +41,9 @@
   var config = getHitTestConfig();
   var utils = config.utils;
 
-  // Subframe hit testing of overscrolled APZCs does not yet work with WebRender,
-  // so bail out early.
-  if (config.isWebRender) {
+  // Subframe hit testing of overscrolled APZCs does not yet work with WebRender
+  // (bug 1701831), so bail out early.
+  if (true) {
     SimpleTest.todo(false, "This test does not currently pass with WebRender");
     return;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_touchaction.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_touchaction.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_hittest_touchaction.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_hittest_touchaction.html	2021-10-20 19:28:20.000000000 +0000
@@ -120,12 +120,6 @@
   var scrollId = config.utils.getViewId(document.scrollingElement);
   var layersId = config.utils.getLayersId();
 
-  // Elements with APZ aware listeners round-trip through the dispatch-to-content
-  // region and end up as IRREGULAR_AREA when WebRender is disabled.
-  var touchListenerFlag = config.isWebRender
-        ? APZHitResultFlags.APZ_AWARE_LISTENERS
-        : APZHitResultFlags.IRREGULAR_AREA;
-
   checkHitResult(
       hitTest(centerOf("taNone")),
       APZHitResultFlags.VISIBLE |
@@ -263,7 +257,7 @@
   checkHitResult(
       hitTest(centerOf("taInnerManipListener")),
       APZHitResultFlags.VISIBLE |
-      touchListenerFlag |
+      APZHitResultFlags.APZ_AWARE_LISTENERS |
       APZHitResultFlags.DOUBLE_TAP_ZOOM_DISABLED,
       scrollId,
       layersId,
@@ -272,14 +266,14 @@
   checkHitResult(
       hitTest(centerOf("taListener")),
       APZHitResultFlags.VISIBLE |
-      touchListenerFlag,
+      APZHitResultFlags.APZ_AWARE_LISTENERS,
       scrollId,
       layersId,
       "div with touch listener");
   checkHitResult(
       hitTest(centerOf("taInnerListenerPanX")),
       APZHitResultFlags.VISIBLE |
-      touchListenerFlag |
+      APZHitResultFlags.APZ_AWARE_LISTENERS |
       APZHitResultFlags.PAN_Y_DISABLED |
       APZHitResultFlags.PINCH_ZOOM_DISABLED |
       APZHitResultFlags.DOUBLE_TAP_ZOOM_DISABLED,
@@ -351,14 +345,9 @@
       "overflow:hidden div doesn't reset pan-x/pan-y from enclosing scroller");
 }
 
-if (!config.isWebRender) {
-  ok(true, "This test is WebRender-only because we get a bunch of dispatch-to-content regions without it and the test isn't very interesting.");
-  subtestDone();
-} else {
-  waitUntilApzStable()
-    .then(test)
-    .then(subtestDone, subtestFailed);
-}
+waitUntilApzStable()
+  .then(test)
+  .then(subtestDone, subtestFailed);
 
 </script>
 </html>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_overscroll_behavior_bug1425603.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_overscroll_behavior_bug1425603.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_overscroll_behavior_bug1425603.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_overscroll_behavior_bug1425603.html	2021-10-20 19:28:20.000000000 +0000
@@ -55,13 +55,11 @@
   await promiseAllPaintsDone();
   var scrollY = 300;
   utils.setAsyncScrollOffset(subframe, 0, scrollY);
-  if (config.isWebRender) {
-    // Tick the refresh driver once to make sure the compositor has applied the
-    // async scroll offset (for APZ hit-testing this doesn't matter, but for
-    // WebRender hit-testing we need to make sure WR has the latest info).
-    utils.advanceTimeAndRefresh(16);
-    utils.restoreNormalRefresh();
-  }
+  // Tick the refresh driver once to make sure the compositor has applied the
+  // async scroll offset (for WebRender hit-testing we need to make sure WR has
+  // the latest info).
+  utils.advanceTimeAndRefresh(16);
+  utils.restoreNormalRefresh();
 
   // Scroll over the subframe, and make sure that the page does not scroll,
   // i.e. overscroll-behavior is respected.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_scrollframe_activation_on_load.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_scrollframe_activation_on_load.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/helper_scrollframe_activation_on_load.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/helper_scrollframe_activation_on_load.html	2021-10-20 19:28:20.000000000 +0000
@@ -51,12 +51,10 @@
       let config = getHitTestConfig();
 
       let heightMultiplier = SpecialPowers.getCharPref("apz.y_stationary_size_multiplier");
-      if (config.isWebRender) {
-        // With WebRender, the effective height multiplier can be reduced
-        // for alignment reasons. The reduction should be no more than a
-        // factor of two.
-        heightMultiplier /= 2;
-      }
+      // With WebRender, the effective height multiplier can be reduced
+      // for alignment reasons. The reduction should be no more than a
+      // factor of two.
+      heightMultiplier /= 2;
       info("effective displayport height multipler is " + heightMultiplier);
 
       let rootDisplayPort = getLastContentDisplayportFor('root-element');
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/test_group_hittest-2.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/test_group_hittest-2.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/test_group_hittest-2.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/test_group_hittest-2.html	2021-10-20 19:28:21.000000000 +0000
@@ -33,6 +33,7 @@
                        ];
 
 var subtests = [
+  {"file": "helper_hittest_deep_scene_stack.html", "prefs": prefs},
   {"file": "helper_hittest_pointerevents_svg.html", "prefs": prefs},
   {"file": "helper_hittest_clippath.html", "prefs": prefs},
   {"file": "helper_hittest_hoisted_scrollinfo.html", "prefs": prefs},
@@ -47,26 +48,10 @@
   {"file": "helper_hittest_spam.html", "prefs": prefs},
 ];
 
-function addConditionalTests(tests) {
-  // Add some more tests only useful with WebRender. Note that we do this in
-  // function run after loading, because trying to read layerManagerType can
-  // throw an NS_ERROR_FAILURE if called too early.
-  var utils = SpecialPowers.getDOMWindowUtils(window);
-  var isWebRender = utils.layerManagerType.startsWith("WebRender");
-  if (isWebRender) {
-    // Add new tests at the beginning, to ensure the final test remains in
-    // the final position.
-    tests = [
-      {"file": "helper_hittest_deep_scene_stack.html", "prefs": prefs},
-    ].concat(tests);
-  }
-  return tests;
-}
-
 if (isApzEnabled()) {
   SimpleTest.waitForExplicitFinish();
   window.onload = function() {
-    runSubtestsSeriallyInFreshWindows(addConditionalTests(subtests))
+    runSubtestsSeriallyInFreshWindows(subtests)
     .then(SimpleTest.finish, SimpleTest.finishWithFailure);
   };
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/test_layerization.html firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/test_layerization.html
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/mochitest/test_layerization.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/mochitest/test_layerization.html	2021-10-20 19:28:20.000000000 +0000
@@ -64,12 +64,10 @@
 let activateAllScrollFrames = config.activateAllScrollFrames;
 
 let heightMultiplier = SpecialPowers.getCharPref("apz.y_stationary_size_multiplier");
-if (config.isWebRender) {
-  // With WebRender, the effective height multiplier can be reduced
-  // for alignment reasons. The reduction should be no more than a
-  // factor of two.
-  heightMultiplier /= 2;
-}
+// With WebRender, the effective height multiplier can be reduced
+// for alignment reasons. The reduction should be no more than a
+// factor of two.
+heightMultiplier /= 2;
 info("effective displayport height multipler is " + heightMultiplier);
 
 function hasNonZeroMarginDisplayPort(elementId, containingDoc = null) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/reftest/reftest.list firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/reftest/reftest.list
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/apz/test/reftest/reftest.list	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/apz/test/reftest/reftest.list	2021-10-20 19:28:20.000000000 +0000
@@ -32,8 +32,8 @@
 
 # Test that position:fixed and position:sticky elements are attached to the
 # layout viewport.
-pref(apz.allow_zooming,true) == pinch-zoom-position-fixed.html pinch-zoom-position-fixed-ref.html
-pref(apz.allow_zooming,true) == pinch-zoom-position-sticky.html pinch-zoom-position-sticky-ref.html
+fuzzy-if(winWidget&&isCoverageBuild,1-1,24-24) pref(apz.allow_zooming,true) == pinch-zoom-position-fixed.html pinch-zoom-position-fixed-ref.html
+fuzzy-if(winWidget&&isCoverageBuild,1-1,24-24) pref(apz.allow_zooming,true) == pinch-zoom-position-sticky.html pinch-zoom-position-sticky-ref.html
 
 pref(apz.allow_zooming,true) == iframe-zoomed.html iframe-zoomed-ref.html
 pref(apz.allow_zooming,true) == scaled-iframe-zoomed.html scaled-iframe-zoomed-ref.html
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/composite/ImageComposite.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/composite/ImageComposite.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/composite/ImageComposite.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/composite/ImageComposite.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -44,7 +44,8 @@
                                 ? mImages[aImageIndex + 1].mTimeStamp
                                 : TimeStamp();
 
-  if (profiler_can_accept_markers() && compositedImageTime && nextImageTime) {
+  if (profiler_thread_is_being_profiled() && compositedImageTime &&
+      nextImageTime) {
     TimeDuration offsetCurrent = compositedImageTime - compositionTime;
     TimeDuration offsetNext = nextImageTime - compositionTime;
     nsPrintfCString str("current %.2lfms, next %.2lfms",
@@ -181,7 +182,7 @@
     // will never be shown.
     CountSkippedFrames(&aNewImages[0]);
 
-    if (profiler_can_accept_markers()) {
+    if (profiler_thread_is_being_profiled()) {
       int len = aNewImages.Length();
       const auto& first = aNewImages[0];
       const auto& last = aNewImages.LastElement();
@@ -208,7 +209,7 @@
                      "Should only be called during a composition");
 
   nsCString descr;
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsCString relativeTimeString;
     if (image.mTimeStamp) {
       relativeTimeString.AppendPrintf(
@@ -253,7 +254,7 @@
 
   if (dropped > 0) {
     mDroppedFrames += dropped;
-    if (profiler_can_accept_markers()) {
+    if (profiler_thread_is_being_profiled()) {
       const char* frameOrFrames = dropped == 1 ? "frame" : "frames";
       nsPrintfCString text("%" PRId32 " %s dropped: %" PRId32 " -> %" PRId32
                            " (producer %" PRId32 ")",
@@ -346,7 +347,7 @@
 }
 
 void ImageComposite::DetectTimeStampJitter(const TimedImage* aNewImage) {
-  if (!profiler_can_accept_markers() || aNewImage->mTimeStamp.IsNull()) {
+  if (!profiler_thread_is_being_profiled() || aNewImage->mTimeStamp.IsNull()) {
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/d3d11/ReadbackManagerD3D11.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/d3d11/ReadbackManagerD3D11.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/d3d11/ReadbackManagerD3D11.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/d3d11/ReadbackManagerD3D11.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -5,7 +5,6 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "ReadbackManagerD3D11.h"
-#include "ReadbackLayer.h"
 #include "mozilla/layers/TextureClient.h"
 #include "mozilla/gfx/2D.h"
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/ipc/CompositorBridgeParent.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/ipc/CompositorBridgeParent.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/ipc/CompositorBridgeParent.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/ipc/CompositorBridgeParent.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -1918,7 +1918,7 @@
   double latencyNorm = latencyMs / aVsyncRate.ToMilliseconds();
   int32_t fracLatencyNorm = lround(latencyNorm * 100.0);
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     struct ContentFrameMarker {
       static constexpr Span<const char> MarkerTypeName() {
         return MakeStringSpan("CONTENT_FRAME_TIME");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/LayerManager.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/LayerManager.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/LayerManager.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/LayerManager.h	1970-01-01 00:00:00.000000000 +0000
@@ -1,424 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_LAYERMANAGER_H
-#define GFX_LAYERMANAGER_H
-
-#include <cstdint>         // for uint32_t, uint64_t, int32_t, uint8_t
-#include <iosfwd>          // for stringstream
-#include <new>             // for operator new
-#include <unordered_set>   // for unordered_set
-#include <utility>         // for forward
-#include "FrameMetrics.h"  // for ScrollUpdatesMap
-#include "ImageContainer.h"  // for ImageContainer, ImageContainer::Mode, ImageContainer::SYNCHRONOUS
-#include "WindowRenderer.h"
-#include "mozilla/AlreadyAddRefed.h"  // for already_AddRefed
-#include "mozilla/Maybe.h"            // for Maybe
-#include "mozilla/RefPtr.h"           // for RefPtr
-#include "mozilla/TimeStamp.h"        // for TimeStamp
-#include "mozilla/UniquePtr.h"        // for UniquePtr
-#include "mozilla/dom/Animation.h"    // for Animation
-#include "mozilla/gfx/Point.h"        // for IntSize
-#include "mozilla/gfx/Types.h"        // for SurfaceFormat
-#include "mozilla/gfx/UserData.h"     // for UserData, UserDataKey (ptr only)
-#include "mozilla/layers/CompositorTypes.h"  // for TextureFactoryIdentifier
-#include "mozilla/layers/ScrollableLayerGuid.h"  // for ScrollableLayerGuid, ScrollableLayerGuid::ViewID
-#include "nsHashKeys.h"                          // for nsUint64HashKey
-#include "nsISupports.h"        // for NS_INLINE_DECL_REFCOUNTING
-#include "nsIWidget.h"          // for nsIWidget
-#include "nsRefPtrHashtable.h"  // for nsRefPtrHashtable
-#include "nsRegion.h"           // for nsIntRegion
-#include "nsStringFwd.h"        // for nsCString, nsAString
-#include "nsTArray.h"           // for nsTArray
-
-// XXX These includes could be avoided by moving function implementations to the
-// cpp file
-#include "mozilla/Assertions.h"  // for AssertionConditionType, MOZ_ASSERT, MOZ_A...
-#include "mozilla/layers/LayersTypes.h"  // for CompositionPayload, LayersBackend, TransactionId, DrawRegionClip, LayersBackend:...
-
-class gfxContext;
-
-extern uint8_t gLayerManagerLayerBuilder;
-
-namespace mozilla {
-
-class FrameLayerBuilder;
-class LogModule;
-class ScrollPositionUpdate;
-
-namespace gfx {
-class DrawTarget;
-}  // namespace gfx
-
-namespace layers {
-
-class AsyncPanZoomController;
-class ClientLayerManager;
-class Layer;
-class CompositorBridgeChild;
-class ReadbackProcessor;
-class FocusTarget;
-class KnowsCompositor;
-class TransactionIdAllocator;
-class FrameUniformityData;
-class PersistentBufferProvider;
-class GlyphArray;
-class WebRenderLayerManager;
-struct AnimData;
-
-// Defined in LayerUserData.h; please include that file instead.
-class LayerUserData;
-
-class DidCompositeObserver {
- public:
-  virtual void DidComposite() = 0;
-};
-
-/*
- * Motivation: For truly smooth animation and video playback, we need to
- * be able to compose frames and render them on a dedicated thread (i.e.
- * off the main thread where DOM manipulation, script execution and layout
- * induce difficult-to-bound latency). This requires Gecko to construct
- * some kind of persistent scene structure (graph or tree) that can be
- * safely transmitted across threads. We have other scenarios (e.g. mobile
- * browsing) where retaining some rendered data between paints is desired
- * for performance, so again we need a retained scene structure.
- *
- * Our retained scene structure is a layer tree. Each layer represents
- * content which can be composited onto a destination surface; the root
- * layer is usually composited into a window, and non-root layers are
- * composited into their parent layers. Layers have attributes (e.g.
- * opacity and clipping) that influence their compositing.
- *
- * We want to support a variety of layer implementations, including
- * a simple "immediate mode" implementation that doesn't retain any
- * rendered data between paints (i.e. uses cairo in just the way that
- * Gecko used it before layers were introduced). But we also don't want
- * to have bifurcated "layers"/"non-layers" rendering paths in Gecko.
- * Therefore the layers API is carefully designed to permit maximally
- * efficient implementation in an "immediate mode" style. See the
- * BasicLayerManager for such an implementation.
- */
-
-/**
- * A LayerManager controls a tree of layers. All layers in the tree
- * must use the same LayerManager.
- *
- * All modifications to a layer tree must happen inside a transaction.
- * Only the state of the layer tree at the end of a transaction is
- * rendered. Transactions cannot be nested
- *
- * Each transaction has two phases:
- * 1) Construction: layers are created, inserted, removed and have
- * properties set on them in this phase.
- * BeginTransaction and BeginTransactionWithTarget start a transaction in
- * the Construction phase.
- * 2) Drawing: PaintedLayers are rendered into in this phase, in tree
- * order. When the client has finished drawing into the PaintedLayers, it should
- * call EndTransaction to complete the transaction.
- *
- * All layer API calls happen on the main thread.
- *
- * Layers are refcounted. The layer manager holds a reference to the
- * root layer, and each container layer holds a reference to its children.
- */
-class LayerManager : public WindowRenderer {
- protected:
-  typedef mozilla::gfx::DrawTarget DrawTarget;
-  typedef mozilla::gfx::IntSize IntSize;
-  typedef mozilla::gfx::SurfaceFormat SurfaceFormat;
-
- public:
-  LayerManager();
-
-  /**
-   * Release layers and resources held by this layer manager, and mark
-   * it as destroyed.  Should do any cleanup necessary in preparation
-   * for its widget going away.  After this call, only user data calls
-   * are valid on the layer manager.
-   */
-  void Destroy() override;
-  bool IsDestroyed() { return mDestroyed; }
-
-  virtual WebRenderLayerManager* AsWebRenderLayerManager() { return nullptr; }
-
-  /**
-   * Returns true if this LayerManager is owned by an nsIWidget,
-   * and is used for drawing into the widget.
-   */
-  virtual bool IsWidgetLayerManager() { return true; }
-  virtual bool IsInactiveLayerManager() { return false; }
-
-  /**
-   * Start a new transaction. Nested transactions are not allowed so
-   * there must be no transaction currently in progress.
-   * This transaction will render the contents of the layer tree to
-   * the given target context. The rendering will be complete when
-   * EndTransaction returns.
-   */
-  virtual bool BeginTransactionWithTarget(
-      gfxContext* aTarget, const nsCString& aURL = nsCString()) = 0;
-
-  FrameLayerBuilder* GetLayerBuilder() {
-    return reinterpret_cast<FrameLayerBuilder*>(
-        GetUserData(&gLayerManagerLayerBuilder));
-  }
-
-  /**
-   * Schedule a composition with the remote Compositor, if one exists
-   * for this LayerManager. Useful in conjunction with the
-   * END_NO_REMOTE_COMPOSITE flag to EndTransaction.
-   */
-  virtual void ScheduleComposite() {}
-
-  virtual void SetNeedsComposite(bool aNeedsComposite) {}
-  virtual bool NeedsComposite() const { return false; }
-
-  virtual bool HasShadowManagerInternal() const { return false; }
-  bool HasShadowManager() const { return HasShadowManagerInternal(); }
-  virtual void StorePluginWidgetConfigurations(
-      const nsTArray<nsIWidget::Configuration>& aConfigurations) {}
-  bool IsSnappingEffectiveTransforms() { return mSnapEffectiveTransforms; }
-
-  /**
-   * Returns true if this LayerManager always requires an intermediate surface
-   * to render blend operations.
-   */
-  virtual bool BlendingRequiresIntermediateSurface() { return false; }
-
-  /**
-   * CONSTRUCTION PHASE ONLY
-   * Set the root layer. The root layer is initially null. If there is
-   * no root layer, EndTransaction won't draw anything.
-   */
-  virtual void SetRoot(Layer* aLayer) = 0;
-  /**
-   * Can be called anytime
-   */
-  Layer* GetRoot() { return nullptr; }
-
-  /**
-   * CONSTRUCTION PHASE ONLY
-   * Called when a managee has mutated.
-   * Subclasses overriding this method must first call their
-   * superclass's impl
-   */
-  virtual void Mutated(Layer* aLayer) {}
-  virtual void MutatedSimple(Layer* aLayer) {}
-
-  /**
-   * Can be called anytime, from any thread.
-   *
-   * Creates an Image container which forwards its images to the compositor
-   * within layer transactions on the main thread or asynchronously using the
-   * ImageBridge IPDL protocol. In the case of asynchronous, If the protocol is
-   * not available, the returned ImageContainer will forward images within layer
-   * transactions.
-   */
-  static already_AddRefed<ImageContainer> CreateImageContainer(
-      ImageContainer::Mode flag = ImageContainer::SYNCHRONOUS);
-
-  /**
-   * Creates a DrawTarget which is optimized for inter-operating with this
-   * layer manager.
-   */
-  virtual already_AddRefed<DrawTarget> CreateOptimalDrawTarget(
-      const IntSize& aSize, SurfaceFormat imageFormat);
-
-  /**
-   * Creates a DrawTarget for alpha masks which is optimized for inter-
-   * operating with this layer manager. In contrast to CreateOptimalDrawTarget,
-   * this surface is optimised for drawing alpha only and we assume that
-   * drawing the mask is fairly simple.
-   */
-  virtual already_AddRefed<DrawTarget> CreateOptimalMaskDrawTarget(
-      const IntSize& aSize);
-
-  /**
-   * Creates a DrawTarget for use with canvas which is optimized for
-   * inter-operating with this layermanager.
-   */
-  virtual already_AddRefed<mozilla::gfx::DrawTarget> CreateDrawTarget(
-      const mozilla::gfx::IntSize& aSize, mozilla::gfx::SurfaceFormat aFormat);
-
-  /**
-   * This setter can be used anytime. The user data for all keys is
-   * initially null. Ownership pases to the layer manager.
-   */
-  void SetUserData(void* aKey, LayerUserData* aData) {
-    mUserData.Add(static_cast<gfx::UserDataKey*>(aKey), aData,
-                  LayerUserDataDestroy);
-  }
-  /**
-   * This can be used anytime. Ownership passes to the caller!
-   */
-  UniquePtr<LayerUserData> RemoveUserData(void* aKey);
-
-  /**
-   * This getter can be used anytime.
-   */
-  bool HasUserData(void* aKey) {
-    return mUserData.Has(static_cast<gfx::UserDataKey*>(aKey));
-  }
-  /**
-   * This getter can be used anytime. Ownership is retained by the layer
-   * manager.
-   */
-  LayerUserData* GetUserData(void* aKey) const {
-    return static_cast<LayerUserData*>(
-        mUserData.Get(static_cast<gfx::UserDataKey*>(aKey)));
-  }
-
-  /**
-   * Must be called outside of a layers transaction.
-   *
-   * For the subtree rooted at |aSubtree|, this attempts to free up
-   * any free-able resources like retained buffers, but may do nothing
-   * at all.  After this call, the layer tree is left in an undefined
-   * state; the layers in |aSubtree|'s subtree may no longer have
-   * buffers with valid content and may no longer be able to draw
-   * their visible and valid regions.
-   *
-   * In general, a painting or forwarding transaction on |this| must
-   * complete on the tree before it returns to a valid state.
-   *
-   * Resource freeing begins from |aSubtree| or |mRoot| if |aSubtree|
-   * is null.  |aSubtree|'s manager must be this.
-   */
-  virtual void ClearCachedResources(Layer* aSubtree = nullptr) {}
-
-  /**
-   * Flag the next paint as the first for a document.
-   */
-  virtual void SetIsFirstPaint() {}
-  virtual bool GetIsFirstPaint() const { return false; }
-
-  /**
-   * Set the current focus target to be sent with the next paint.
-   */
-  virtual void SetFocusTarget(const FocusTarget& aFocusTarget) {}
-
-  virtual void SendInvalidRegion(const nsIntRegion& aRegion) {}
-
-  virtual const char* Name() const { return "???"; }
-
-  /**
-   * Dump information about this layer manager and its managed tree to
-   * aStream.
-   */
-  void Dump(std::stringstream& aStream, const char* aPrefix = "",
-            bool aDumpHtml = false, bool aSorted = false);
-  /**
-   * Dump information about just this layer manager itself to aStream
-   */
-  void DumpSelf(std::stringstream& aStream, const char* aPrefix = "",
-                bool aSorted = false);
-  void Dump(bool aSorted = false);
-
-  /**
-   * Log information about this layer manager and its managed tree to
-   * the NSPR log (if enabled for "Layers").
-   */
-  void Log(const char* aPrefix = "");
-  /**
-   * Log information about just this layer manager itself to the NSPR
-   * log (if enabled for "Layers").
-   */
-  void LogSelf(const char* aPrefix = "");
-
-  static bool IsLogEnabled();
-  static mozilla::LogModule* GetLog();
-
-  bool IsInTransaction() const { return mInTransaction; }
-
-  virtual void SetRegionToClear(const nsIntRegion& aRegion) {
-    mRegionToClear = aRegion;
-  }
-
-  virtual float RequestProperty(const nsAString& property) { return -1; }
-
-  virtual bool AsyncPanZoomEnabled() const { return false; }
-
-  static void LayerUserDataDestroy(void* data);
-
-  void AddPaintedPixelCount(int32_t aCount) { mPaintedPixelCount += aCount; }
-
-  uint32_t GetAndClearPaintedPixelCount() {
-    uint32_t count = mPaintedPixelCount;
-    mPaintedPixelCount = 0;
-    return count;
-  }
-
-  virtual void SetLayersObserverEpoch(LayersObserverEpoch aEpoch) {}
-
-  virtual void DidComposite(TransactionId aTransactionId,
-                            const mozilla::TimeStamp& aCompositeStart,
-                            const mozilla::TimeStamp& aCompositeEnd) {}
-
-  virtual void AddDidCompositeObserver(DidCompositeObserver* aObserver) {
-    MOZ_CRASH("GFX: LayerManager");
-  }
-  virtual void RemoveDidCompositeObserver(DidCompositeObserver* aObserver) {
-    MOZ_CRASH("GFX: LayerManager");
-  }
-
-  virtual void UpdateTextureFactoryIdentifier(
-      const TextureFactoryIdentifier& aNewIdentifier) {}
-
-  virtual TextureFactoryIdentifier GetTextureFactoryIdentifier() {
-    return TextureFactoryIdentifier();
-  }
-
-  virtual void SetTransactionIdAllocator(TransactionIdAllocator* aAllocator) {}
-
-  virtual TransactionId GetLastTransactionId() { return TransactionId{0}; }
-
-  void SetContainsSVG(bool aContainsSVG) { mContainsSVG = aContainsSVG; }
-
- protected:
-  gfx::UserData mUserData;
-  bool mDestroyed;
-  bool mSnapEffectiveTransforms;
-
-  nsIntRegion mRegionToClear;
-
-  // Protected destructor, to discourage deletion outside of Release():
-  virtual ~LayerManager();
-
-  // Print interesting information about this into aStreamo.  Internally
-  // used to implement Dump*() and Log*().
-  virtual void PrintInfo(std::stringstream& aStream, const char* aPrefix);
-
-  uint64_t mId;
-  bool mInTransaction;
-
-  // Used for tracking CONTENT_FRAME_TIME_WITH_SVG
-  bool mContainsSVG;
-  // The count of pixels that were painted in the current transaction.
-  uint32_t mPaintedPixelCount;
-
- public:
-  /*
-   * Methods to store/get/clear a "pending scroll info update" object on a
-   * per-scrollid basis. This is used for empty transactions that push over
-   * scroll position updates to the APZ code.
-   */
-  virtual bool AddPendingScrollUpdateForNextTransaction(
-      ScrollableLayerGuid::ViewID aScrollId,
-      const ScrollPositionUpdate& aUpdateInfo) override;
-  Maybe<nsTArray<ScrollPositionUpdate>> GetPendingScrollInfoUpdate(
-      ScrollableLayerGuid::ViewID aScrollId);
-  std::unordered_set<ScrollableLayerGuid::ViewID>
-  ClearPendingScrollInfoUpdate();
-
- protected:
-  ScrollUpdatesMap mPendingScrollUpdates;
-};
-
-}  // namespace layers
-}  // namespace mozilla
-
-#endif /* GFX_LAYERS_H */
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/Layers.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/Layers.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/Layers.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/Layers.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -14,9 +14,7 @@
 #include <string>              // for char_traits, string, basic_string
 #include <type_traits>         // for remove_reference<>::type
 #include "CompositableHost.h"  // for CompositableHost
-#include "GeckoProfiler.h"  // for profiler_can_accept_markers, PROFILER_MARKER_TEXT
-#include "LayerUserData.h"  // for LayerUserData
-#include "ReadbackLayer.h"  // for ReadbackLayer
+#include "LayerUserData.h"     // for LayerUserData
 #include "TreeTraversal.h"  // for ForwardIterator, ForEachNode, DepthFirstSearch, TraversalFlag, TraversalFl...
 #include "UnitTransforms.h"  // for ViewAs, PixelCastJustification, PixelCastJustification::RenderTargetIsPare...
 #include "apz/src/AsyncPanZoomController.h"  // for AsyncPanZoomController
@@ -25,9 +23,9 @@
 #include "gfxMatrix.h"              // for gfxMatrix
 #include "gfxUtils.h"               // for gfxUtils, gfxUtils::sDumpPaintFile
 #include "mozilla/ArrayIterator.h"  // for ArrayIterator
-#include "mozilla/BaseProfilerMarkersPrerequisites.h"  // for MarkerTiming
-#include "mozilla/DebugOnly.h"                         // for DebugOnly
+#include "mozilla/DebugOnly.h"      // for DebugOnly
 #include "mozilla/Logging.h"  // for LogLevel, LogLevel::Debug, MOZ_LOG_TEST
+#include "mozilla/ProfilerMarkers.h"  // for profiler_thread_is_being_profiled, PROFILER_MARKER_TEXT
 #include "mozilla/ScrollPositionUpdate.h"  // for ScrollPositionUpdate
 #include "mozilla/Telemetry.h"             // for AccumulateTimeDelta
 #include "mozilla/TelemetryHistogramEnums.h"  // for KEYPRESS_PRESENT_LATENCY, SCROLL_PRESENT_LATENCY
@@ -78,10 +76,6 @@
   }
 }
 
-void WriteSnapshotToDumpFile(LayerManager* aManager, DataSourceSurface* aSurf) {
-  WriteSnapshotToDumpFile_internal(aManager, aSurf);
-}
-
 void WriteSnapshotToDumpFile(Compositor* aCompositor, DrawTarget* aTarget) {
   RefPtr<SourceSurface> surf = aTarget->Snapshot();
   RefPtr<DataSourceSurface> dSurf = surf->GetDataSurface();
@@ -104,7 +98,7 @@
   if (aPayloads.Length()) {
     TimeStamp presented = aCompositionEndTime;
     for (const CompositionPayload& payload : aPayloads) {
-      if (profiler_can_accept_markers()) {
+      if (profiler_thread_is_being_profiled()) {
         MOZ_RELEASE_ASSERT(payload.mType <= kHighestCompositionPayloadType);
         nsAutoCString name(
             kCompositionPayloadTypeNames[uint8_t(payload.mType)]);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/Layers.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/Layers.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/Layers.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/Layers.h	2021-10-20 19:28:21.000000000 +0000
@@ -32,7 +32,6 @@
 #include "mozilla/gfx/UserData.h"  // for UserData, UserDataKey (ptr only)
 #include "mozilla/layers/AnimationInfo.h"  // for AnimationInfo
 #include "mozilla/layers/LayerAttributes.h"  // for SimpleLayerAttributes, ScrollbarData (ptr only)
-#include "mozilla/layers/LayerManager.h"  // for LayerManager
 #include "mozilla/layers/ScrollableLayerGuid.h"  // for ScrollableLayerGuid, ScrollableLayerGuid::ViewID
 #include "mozilla/layers/BSPTree.h"
 #include "nsISupports.h"    // for NS_INLINE_DECL_REFCOUNTING
@@ -124,8 +123,6 @@
 
 #ifdef MOZ_DUMP_PAINTING
 void WriteSnapshotToDumpFile(Layer* aLayer, gfx::DataSourceSurface* aSurf);
-void WriteSnapshotToDumpFile(LayerManager* aManager,
-                             gfx::DataSourceSurface* aSurf);
 void WriteSnapshotToDumpFile(Compositor* aCompositor, gfx::DrawTarget* aTarget);
 #endif
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/moz.build firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/moz.build
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/moz.build	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/moz.build	2021-10-20 19:28:21.000000000 +0000
@@ -25,7 +25,6 @@
     "LayerUserData.h",
     "opengl/OGLShaderConfig.h",
     "opengl/OGLShaderProgram.h",
-    "ReadbackLayer.h",
 ]
 
 if CONFIG["MOZ_WIDGET_TOOLKIT"] == "windows":
@@ -177,7 +176,6 @@
     "ipc/VideoBridgeParent.h",
     "ipc/VideoBridgeUtils.h",
     "LayerAttributes.h",
-    "LayerManager.h",
     "LayersTypes.h",
     "MemoryPressureObserver.h",
     "NativeLayer.h",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/ProfilerScreenshots.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/ProfilerScreenshots.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/ProfilerScreenshots.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/ProfilerScreenshots.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -84,7 +84,7 @@
        originalSize, scaledSize, timeStamp]() {
         // Create a new surface that wraps backingSurface's data but has the
         // correct size.
-        if (profiler_can_accept_markers()) {
+        if (profiler_thread_is_being_profiled(sourceThread)) {
           DataSourceSurface::ScopedMap scopedMap(backingSurface,
                                                  DataSourceSurface::READ);
           RefPtr<DataSourceSurface> surf =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/ReadbackLayer.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/ReadbackLayer.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/ReadbackLayer.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/ReadbackLayer.h	1970-01-01 00:00:00.000000000 +0000
@@ -1,71 +0,0 @@
-/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* vim: set ts=8 sts=2 et sw=2 tw=80: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef GFX_READBACKLAYER_H
-#define GFX_READBACKLAYER_H
-
-#include <stdint.h>             // for uint64_t
-#include "Layers.h"             // for Layer, etc
-#include "mozilla/gfx/Rect.h"   // for gfxRect
-#include "mozilla/gfx/Point.h"  // for IntPoint
-#include "mozilla/mozalloc.h"   // for operator delete
-#include "nsCOMPtr.h"           // for already_AddRefed
-#include "nsDebug.h"            // for NS_ASSERTION
-#include "nsPoint.h"            // for nsIntPoint
-#include "nscore.h"             // for nsACString
-
-class gfxContext;
-
-namespace mozilla {
-namespace layers {
-
-class ReadbackProcessor;
-
-/**
- * A ReadbackSink receives a stream of updates to a rectangle of pixels.
- * These update callbacks are always called on the main thread, either during
- * EndTransaction or from the event loop.
- */
-class ReadbackSink {
- public:
-  ReadbackSink() = default;
-  virtual ~ReadbackSink() = default;
-
-  /**
-   * Sends an update to indicate that the background is currently unknown.
-   */
-  virtual void SetUnknown(uint64_t aSequenceNumber) = 0;
-  /**
-   * Called by the layer system to indicate that the contents of part of
-   * the readback area are changing.
-   * @param aRect is the rectangle of content that is being updated,
-   * in the coordinate system of the ReadbackLayer.
-   * @param aSequenceNumber updates issued out of order should be ignored.
-   * Only use updates whose sequence counter is greater than all other updates
-   * seen so far. Return null when a non-fresh sequence value is given.
-   * @return a context into which the update should be drawn. This should be
-   * set up to clip to aRect. Zero should never be passed as a sequence number.
-   * If this returns null, EndUpdate should NOT be called. If it returns
-   * non-null, EndUpdate must be called.
-   *
-   * We don't support partially unknown backgrounds. Therefore, the
-   * first BeginUpdate after a SetUnknown will have the complete background.
-   */
-  virtual already_AddRefed<gfx::DrawTarget> BeginUpdate(
-      const gfx::IntRect& aRect, uint64_t aSequenceNumber) = 0;
-  /**
-   * EndUpdate must be called immediately after BeginUpdate, without returning
-   * to the event loop.
-   * @param aContext the context returned by BeginUpdate
-   * Implicitly Restore()s the state of aContext.
-   */
-  virtual void EndUpdate(const gfx::IntRect& aRect) = 0;
-};
-
-}  // namespace layers
-}  // namespace mozilla
-
-#endif /* GFX_READBACKLAYER_H */
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderBridgeParent.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderBridgeParent.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderBridgeParent.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderBridgeParent.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -221,7 +221,7 @@
     CompositorThread()->Dispatch(NS_NewRunnableFunction(
         "SceneBuiltNotificationRunnable", [parent, epoch, startTime]() {
           auto endTime = TimeStamp::Now();
-          if (profiler_can_accept_markers()) {
+          if (profiler_thread_is_being_profiled()) {
             PROFILER_MARKER("CONTENT_FULL_PAINT_TIME", GRAPHICS,
                             MarkerTiming::Interval(startTime, endTime),
                             ContentBuildMarker);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderBridgeParent.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderBridgeParent.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderBridgeParent.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderBridgeParent.h	2021-10-20 19:28:20.000000000 +0000
@@ -15,7 +15,6 @@
 #include "mozilla/DataMutex.h"
 #include "mozilla/layers/CompositableTransactionParent.h"
 #include "mozilla/layers/CompositorVsyncSchedulerOwner.h"
-#include "mozilla/layers/LayerManager.h"
 #include "mozilla/layers/PWebRenderBridgeParent.h"
 #include "mozilla/HashTable.h"
 #include "mozilla/Maybe.h"
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderCommandBuilder.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderCommandBuilder.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderCommandBuilder.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderCommandBuilder.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -97,8 +97,6 @@
   // during invalidations.
   std::vector<RefPtr<SourceSurface>> mExternalSurfaces;
 
-  IntRect mImageRect;
-
   BlobItemData(DIGroup* aGroup, nsDisplayItem* aItem)
       : mUsed(false), mGroup(aGroup) {
     mInvalid = false;
@@ -406,9 +404,7 @@
       InvalidateRect(aData->mRect);
       aData->mInvalid = true;
       invalidated = true;
-    } else if (aData->mInvalid ||
-               /* XXX: handle image load invalidation */ (
-                   aItem->IsInvalid(invalid) && invalid.IsEmpty())) {
+    } else if (aItem->IsInvalid(invalid) && invalid.IsEmpty()) {
       UniquePtr<nsDisplayItemGeometry> geometry(
           aItem->AllocateGeometry(aBuilder));
       nsRect clippedBounds = clip.ApplyNonRoundedIntersection(
@@ -543,7 +539,6 @@
     }
     mActualBounds.OrWith(aData->mRect);
     aData->mClip = clip;
-    aData->mImageRect = mClippedImageBounds;
     GP("post mInvalidRect: %d %d %d %d\n", mInvalidRect.x, mInvalidRect.y,
        mInvalidRect.width, mInvalidRect.height);
     return invalidated;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderLayerManager.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderLayerManager.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderLayerManager.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderLayerManager.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -602,11 +602,6 @@
       mTransactionIdAllocator->NotifyTransactionCompleted(aTransactionId);
     }
   }
-
-  // These observers fire whether or not we were in a transaction.
-  for (size_t i = 0; i < mDidCompositeObservers.Length(); i++) {
-    mDidCompositeObservers[i]->DidComposite();
-  }
 }
 
 void WebRenderLayerManager::ClearCachedResources() {
@@ -673,18 +668,6 @@
   return mLatestTransactionId;
 }
 
-void WebRenderLayerManager::AddDidCompositeObserver(
-    DidCompositeObserver* aObserver) {
-  if (!mDidCompositeObservers.Contains(aObserver)) {
-    mDidCompositeObservers.AppendElement(aObserver);
-  }
-}
-
-void WebRenderLayerManager::RemoveDidCompositeObserver(
-    DidCompositeObserver* aObserver) {
-  mDidCompositeObservers.RemoveElement(aObserver);
-}
-
 void WebRenderLayerManager::FlushRendering(wr::RenderReasons aReasons) {
   CompositorBridgeChild* cBridge = GetCompositorBridgeChild();
   if (!cBridge) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderLayerManager.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderLayerManager.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderLayerManager.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderLayerManager.h	2021-10-20 19:28:21.000000000 +0000
@@ -23,12 +23,12 @@
 #include "mozilla/layers/CompositorTypes.h"   // for TextureFactoryIdentifier
 #include "mozilla/layers/DisplayItemCache.h"  // for DisplayItemCache
 #include "mozilla/layers/FocusTarget.h"       // for FocusTarget
-#include "mozilla/layers/LayerManager.h"  // for DidCompositeObserver (ptr only), LayerManager::END_DEFAULT, LayerManager::En...
 #include "mozilla/layers/LayersTypes.h"  // for TransactionId, LayersBackend, CompositionPayload (ptr only), LayersBackend::...
 #include "mozilla/layers/RenderRootStateManager.h"  // for RenderRootStateManager
 #include "mozilla/layers/ScrollableLayerGuid.h"  // for ScrollableLayerGuid, ScrollableLayerGuid::ViewID
 #include "mozilla/layers/WebRenderCommandBuilder.h"  // for WebRenderCommandBuilder
 #include "mozilla/layers/WebRenderScrollData.h"      // for WebRenderScrollData
+#include "WindowRenderer.h"
 #include "nsHashKeys.h"                              // for nsRefPtrHashKey
 #include "nsRegion.h"                                // for nsIntRegion
 #include "nsStringFwd.h"                             // for nsCString, nsAString
@@ -52,6 +52,8 @@
 class PCompositorBridgeChild;
 class WebRenderBridgeChild;
 class WebRenderParentCommand;
+class TransactionIdAllocator;
+class LayerUserData;
 
 class WebRenderLayerManager final : public WindowRenderer {
   typedef nsTArray<RefPtr<Layer>> LayerRefArray;
@@ -107,9 +109,6 @@
   void SetTransactionIdAllocator(TransactionIdAllocator* aAllocator);
   TransactionId GetLastTransactionId();
 
-  void AddDidCompositeObserver(DidCompositeObserver* aObserver);
-  void RemoveDidCompositeObserver(DidCompositeObserver* aObserver);
-
   void FlushRendering(wr::RenderReasons aReasons) override;
   void WaitOnTransactionProcessed() override;
 
@@ -228,8 +227,6 @@
   RefPtr<TransactionIdAllocator> mTransactionIdAllocator;
   TransactionId mLatestTransactionId;
 
-  nsTArray<DidCompositeObserver*> mDidCompositeObservers;
-
   gfx::UserData mUserData;
 
   // This holds the scroll data that we need to send to the compositor for
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderUserData.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderUserData.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/layers/wr/WebRenderUserData.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/layers/wr/WebRenderUserData.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -9,7 +9,6 @@
 #include "mozilla/layers/AnimationHelper.h"
 #include "mozilla/layers/CompositorBridgeChild.h"
 #include "mozilla/layers/ImageClient.h"
-#include "mozilla/layers/LayerManager.h"
 #include "mozilla/layers/WebRenderBridgeChild.h"
 #include "mozilla/layers/RenderRootStateManager.h"
 #include "mozilla/layers/WebRenderMessages.h"
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/gtest/MockWidget.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/gtest/MockWidget.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/gtest/MockWidget.h	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/gtest/MockWidget.h	2021-10-20 19:28:21.000000000 +0000
@@ -67,10 +67,6 @@
   virtual void Enable(bool aState) override {}
   virtual bool IsEnabled() const override { return true; }
   virtual void SetFocus(Raise, mozilla::dom::CallerType aCallerType) override {}
-  virtual nsresult ConfigureChildren(
-      const nsTArray<Configuration>& aConfigurations) override {
-    return NS_OK;
-  }
   virtual void Invalidate(const LayoutDeviceIntRect& aRect) override {}
   virtual nsresult SetTitle(const nsAString& title) override { return NS_OK; }
   virtual LayoutDeviceIntPoint WidgetToScreenOffset() override {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/gtest/moz.build firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/gtest/moz.build
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/gtest/moz.build	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/gtest/moz.build	2021-10-20 19:28:21.000000000 +0000
@@ -16,7 +16,6 @@
     "TestConfigManager.cpp",
     "TestCoord.cpp",
     "TestGfxWidgets.cpp",
-    "TestLayers.cpp",
     "TestMatrix.cpp",
     "TestMoz2D.cpp",
     "TestPolygon.cpp",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/gtest/TestConfigManager.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/gtest/TestConfigManager.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/gtest/TestConfigManager.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/gtest/TestConfigManager.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -147,9 +147,6 @@
   NS_IMETHOD GetIsHeadless(bool* aIsHeadless) override {
     return NS_ERROR_NOT_IMPLEMENTED;
   }
-  NS_IMETHOD GetUsesTiling(bool* aUsesTiling) override {
-    return NS_ERROR_NOT_IMPLEMENTED;
-  }
   NS_IMETHOD GetTargetFrameRate(uint32_t* aTargetFrameRate) override {
     return NS_ERROR_NOT_IMPLEMENTED;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/gtest/TestLayers.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/gtest/TestLayers.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/gtest/TestLayers.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/gtest/TestLayers.cpp	1970-01-01 00:00:00.000000000 +0000
@@ -1,39 +0,0 @@
-/* vim:set ts=2 sw=2 sts=2 et: */
-/* Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/publicdomain/zero/1.0/
- */
-
-#include "TestLayers.h"
-#include "gfxPlatform.h"
-#include "gtest/gtest.h"
-#include "gmock/gmock.h"
-#include "LayerUserData.h"
-#include "mozilla/layers/CompositorBridgeParent.h"
-
-using namespace mozilla;
-using namespace mozilla::gfx;
-using namespace mozilla::layers;
-
-class TestLayerManager : public LayerManager {
- public:
-  TestLayerManager() : LayerManager() {}
-
-  virtual bool EndEmptyTransaction(EndTransactionFlags aFlags = END_DEFAULT) {
-    return false;
-  }
-  virtual void GetBackendName(nsAString& aName) {}
-  virtual LayersBackend GetBackendType() { return LayersBackend::LAYERS_BASIC; }
-  virtual bool BeginTransaction(const nsCString& = nsCString()) { return true; }
-  virtual void SetRoot(Layer* aLayer) {}
-  virtual bool BeginTransactionWithTarget(gfxContext* aTarget,
-                                          const nsCString& = nsCString()) {
-    return true;
-  }
-  virtual int32_t GetMaxTextureSize() const { return 0; }
-};
-
-class TestUserData : public LayerUserData {
- public:
-  MOCK_METHOD0(Die, void());
-  virtual ~TestUserData() { Die(); }
-};
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/gtest/TestLayers.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/gtest/TestLayers.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/gtest/TestLayers.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/gtest/TestLayers.h	2021-10-20 19:28:21.000000000 +0000
@@ -24,25 +24,4 @@
 }  // namespace layers
 }  // namespace mozilla
 
-/* Create layer tree from a simple layer tree description syntax.
- * Each index is either the first letter of the layer type or
- * a '(',')' to indicate the start/end of the child layers.
- * The aim of this function is to remove hard to read
- * layer tree creation code.
- *
- * Example "c(c(c(tt)t))" would yield:
- *          c
- *          |
- *          c
- *         / \
- *        c   t
- *       / \
- *      t   t
- */
-already_AddRefed<mozilla::layers::Layer> CreateLayerTree(
-    const char* aLayerTreeDescription, nsIntRegion* aVisibleRegions,
-    const mozilla::gfx::Matrix4x4* aTransforms,
-    RefPtr<mozilla::layers::LayerManager>& aLayerManager,
-    nsTArray<RefPtr<mozilla::layers::Layer> >& aLayersOut);
-
 #endif
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/reftest/reftest.list firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/reftest/reftest.list
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/tests/reftest/reftest.list	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/tests/reftest/reftest.list	2021-10-20 19:28:21.000000000 +0000
@@ -28,7 +28,7 @@
 pref(apz.allow_zooming,true) fails-if(useDrawSnapshot) == 1662062-1-no-blurry.html 1662062-1-ref.html
 # Bug 1715676: nsBulletFrame has been removed and the new rendering does not use PushRoundedRect that this test is for:
 # == 1681610.html 1681610-ref.html
-skip-if(geckoview) fuzzy-if(!useDrawSnapshot,0-255,0-667) fuzzy-if(useDrawSnapshot,0-255,0-3601) == 1687157-1.html 1687157-1-ref.html
+skip-if(geckoview) fuzzy-if(!useDrawSnapshot,0-255,0-897) fuzzy-if(useDrawSnapshot,0-255,0-3601) == 1687157-1.html 1687157-1-ref.html
 fuzzy(64-99,512-523) == 1696439-1.html 1696439-1-ref.html
 random-if(gtkWidget) == 1722689-1.html 1722689-1-ref.html
 fuzzy-if(useDrawSnapshot,255-255,5-5) == 1724901-1.html 1724901-1-ref.html
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxFontEntry.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxFontEntry.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxFontEntry.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxFontEntry.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -1754,7 +1754,7 @@
   }
 
   nsCString charAndName;
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     charAndName = nsPrintfCString("\\u%x %s", aMatchData->mCh, mName.get());
   }
   AUTO_PROFILER_LABEL_DYNAMIC_NSCSTRING("gfxFontFamily::FindFontForChar",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxPlatform.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxPlatform.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxPlatform.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxPlatform.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -437,7 +437,6 @@
     : mHasVariationFontSupport(false),
       mAzureCanvasBackendCollector(this, &gfxPlatform::GetAzureBackendInfo),
       mApzSupportCollector(this, &gfxPlatform::GetApzSupportInfo),
-      mTilesInfoCollector(this, &gfxPlatform::GetTilesSupportInfo),
       mFrameStatsCollector(this, &gfxPlatform::GetFrameStats),
       mCMSInfoCollector(this, &gfxPlatform::GetCMSSupportInfo),
       mDisplayInfoCollector(this, &gfxPlatform::GetDisplayInfo),
@@ -482,6 +481,13 @@
 
 #define WR_DEBUG_PREF "gfx.webrender.debug"
 
+static void SwapIntervalPrefChangeCallback(const char* aPrefName, void*) {
+  bool egl = Preferences::GetBool("gfx.swap-interval.egl", false);
+  bool glx = Preferences::GetBool("gfx.swap-interval.glx", false);
+  gfxVars::SetSwapIntervalEGL(egl);
+  gfxVars::SetSwapIntervalGLX(glx);
+}
+
 static void WebRendeProfilerUIPrefChangeCallback(const char* aPrefName, void*) {
   nsCString uiString;
   if (NS_SUCCEEDED(Preferences::GetCString("gfx.webrender.debug.profiler-ui",
@@ -940,8 +946,6 @@
 
   InitLayersIPC();
 
-  gPlatform->ComputeTileSize();
-
   gPlatform->mHasVariationFontSupport = gPlatform->CheckVariationFontSupport();
 
   // This *create* the platform font list instance, but may not *initialize* it
@@ -1545,34 +1549,6 @@
   return result.forget();
 }
 
-void gfxPlatform::ComputeTileSize() {
-  // The tile size should be picked in the parent processes
-  // and sent to the child processes over IPDL GetTileSize.
-  if (!XRE_IsParentProcess()) {
-    return;
-  }
-
-  int32_t w = StaticPrefs::layers_tile_width_AtStartup();
-  int32_t h = StaticPrefs::layers_tile_height_AtStartup();
-
-  if (StaticPrefs::layers_tiles_adjust_AtStartup()) {
-    gfx::IntSize screenSize = GetScreenSize();
-    if (screenSize.width > 0) {
-      // Choose a size so that there are between 2 and 4 tiles per screen width.
-      // FIXME: we should probably make sure this is within the max texture
-      // size, but I think everything should at least support 1024
-      w = h = clamped(int32_t(RoundUpPow2(screenSize.width)) / 4, 256, 1024);
-    }
-  }
-
-  // Don't allow changing the tile size after we've set it.
-  // Right now the code assumes that the tile size doesn't change.
-  MOZ_ASSERT(gfxVars::TileSize().width == -1 &&
-             gfxVars::TileSize().height == -1);
-
-  gfxVars::SetTileSize(IntSize(w, h));
-}
-
 void gfxPlatform::PopulateScreenInfo() {
   nsCOMPtr<nsIScreenManager> manager =
       do_GetService("@mozilla.org/gfx/screenmanager;1");
@@ -2602,6 +2578,9 @@
 
   gfxVars::SetUseSoftwareWebRender(!hasHardware && hasSoftware);
 
+  Preferences::RegisterPrefixCallbackAndCall(SwapIntervalPrefChangeCallback,
+                                             "gfx.swap-interval");
+
   // gfxFeature is not usable in the GPU process, so we use gfxVars to transmit
   // this feature
   if (hasWebRender) {
@@ -2829,10 +2808,6 @@
   return result;
 }
 
-bool gfxPlatform::UsesTiling() const {
-  return StaticPrefs::layers_enable_tiles_AtStartup();
-}
-
 /***
  * The preference "layout.frame_rate" has 3 meanings depending on the value:
  *
@@ -2976,16 +2951,6 @@
   }
 }
 
-void gfxPlatform::GetTilesSupportInfo(mozilla::widget::InfoObject& aObj) {
-  if (!StaticPrefs::layers_enable_tiles_AtStartup()) {
-    return;
-  }
-
-  IntSize tileSize = gfxVars::TileSize();
-  aObj.DefineProperty("TileHeight", tileSize.height);
-  aObj.DefineProperty("TileWidth", tileSize.width);
-}
-
 void gfxPlatform::GetFrameStats(mozilla::widget::InfoObject& aObj) {
   uint32_t i = 0;
   for (FrameStats& f : mFrameStats) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxPlatformFontList.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxPlatformFontList.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxPlatformFontList.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxPlatformFontList.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -50,8 +50,8 @@
 #include <numeric>
 
 using namespace mozilla;
-using mozilla::intl::Locale;
 using mozilla::intl::LocaleService;
+using mozilla::intl::MozLocale;
 using mozilla::intl::OSPreferences;
 
 #define LOG_FONTLIST(args) \
@@ -480,8 +480,9 @@
     } else {
       NS_DispatchToMainThread(
           NS_NewRunnableFunction("font-info-updated notification callback", [] {
-            gfxPlatform::ForceGlobalReflow(gfxPlatform::NeedsReframe::Yes,
-                                           gfxPlatform::BroadcastToChildren::No);
+            gfxPlatform::ForceGlobalReflow(
+                gfxPlatform::NeedsReframe::Yes,
+                gfxPlatform::BroadcastToChildren::No);
           }));
     }
 
@@ -504,6 +505,11 @@
     ClearLangGroupPrefFonts();
     CancelLoader();
 
+    // Clear cached family records that will no longer be valid.
+    for (auto& f : mReplacementCharFallbackFamily) {
+      f = FontFamily();
+    }
+
     gfxFontUtils::GetPrefsFontList(kFontSystemWhitelistPref, mEnabledFontsList);
   }
 
@@ -2165,7 +2171,7 @@
     LocaleService::GetInstance()->GetAppLocaleAsBCP47(localeStr);
 
     {
-      Locale locale(localeStr);
+      MozLocale locale(localeStr);
       if (locale.GetLanguage().Equals("ja")) {
         AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Japanese);
       } else if (locale.GetLanguage().Equals("zh")) {
@@ -2197,7 +2203,7 @@
           sysLocales, prefLocales, ""_ns,
           LocaleService::kLangNegStrategyFiltering, negLocales);
       for (const auto& localeStr : negLocales) {
-        Locale locale(localeStr);
+        MozLocale locale(localeStr);
 
         if (locale.GetLanguage().Equals("ja")) {
           AppendPrefLang(tempPrefLangs, tempLen, eFontPrefLang_Japanese);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxPlatform.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxPlatform.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxPlatform.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxPlatform.h	2021-10-20 19:28:21.000000000 +0000
@@ -311,7 +311,6 @@
 
   void GetAzureBackendInfo(mozilla::widget::InfoObject& aObj);
   void GetApzSupportInfo(mozilla::widget::InfoObject& aObj);
-  void GetTilesSupportInfo(mozilla::widget::InfoObject& aObj);
   void GetFrameStats(mozilla::widget::InfoObject& aObj);
   void GetCMSSupportInfo(mozilla::widget::InfoObject& aObj);
   void GetDisplayInfo(mozilla::widget::InfoObject& aObj);
@@ -640,11 +639,6 @@
   }
 
   /**
-   * Returns whether the current process should use tiling for layers.
-   */
-  virtual bool UsesTiling() const;
-
-  /**
    * Returns a logger if one is available and logging is enabled
    */
   static mozilla::LogModule* GetLog(eGfxLog aWhichLog);
@@ -961,14 +955,6 @@
   static void ShutdownCMS();
 
   /**
-   * Calling this function will compute and set the ideal tile size for the
-   * platform. This will only have an effect in the parent process; child
-   * processes should be updated via SetTileSize to match the value computed in
-   * the parent.
-   */
-  void ComputeTileSize();
-
-  /**
    * This uses nsIScreenManager to determine the screen size and color depth
    */
   void PopulateScreenInfo();
@@ -1002,7 +988,6 @@
 
   mozilla::widget::GfxInfoCollector<gfxPlatform> mAzureCanvasBackendCollector;
   mozilla::widget::GfxInfoCollector<gfxPlatform> mApzSupportCollector;
-  mozilla::widget::GfxInfoCollector<gfxPlatform> mTilesInfoCollector;
   mozilla::widget::GfxInfoCollector<gfxPlatform> mFrameStatsCollector;
   mozilla::widget::GfxInfoCollector<gfxPlatform> mCMSInfoCollector;
   mozilla::widget::GfxInfoCollector<gfxPlatform> mDisplayInfoCollector;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxPlatformMac.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxPlatformMac.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxPlatformMac.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxPlatformMac.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -230,12 +230,6 @@
   return data;
 }
 
-bool gfxPlatformMac::UsesTiling() const {
-  // The non-tiling ContentClient requires CrossProcessSemaphore which
-  // isn't implemented for OSX.
-  return true;
-}
-
 bool gfxPlatformMac::CreatePlatformFontList() {
   return gfxPlatformFontList::Initialize(new gfxMacPlatformFontList);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxPlatformMac.h firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxPlatformMac.h
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/thebes/gfxPlatformMac.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/thebes/gfxPlatformMac.h	2021-10-20 19:28:21.000000000 +0000
@@ -37,8 +37,6 @@
     return (gfxPlatformMac*)gfxPlatform::GetPlatform();
   }
 
-  bool UsesTiling() const override;
-
   already_AddRefed<gfxASurface> CreateOffscreenSurface(
       const IntSize& aSize, gfxImageFormat aFormat) override;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/gfx/webrender_bindings/RenderCompositorEGL.cpp firefox-trunk-95.0~a1~hg20211020r596404/gfx/webrender_bindings/RenderCompositorEGL.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/gfx/webrender_bindings/RenderCompositorEGL.cpp	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/gfx/webrender_bindings/RenderCompositorEGL.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -191,8 +191,9 @@
       const auto& gle = gl::GLContextEGL::Cast(gl());
       const auto& egl = gle->mEgl;
       MakeCurrent();
-      // Make eglSwapBuffers() non-blocking on wayland.
-      egl->fSwapInterval(0);
+
+      const int interval = gfx::gfxVars::SwapIntervalEGL() ? 1 : 0;
+      egl->fSwapInterval(interval);
     } else {
       RenderThread::Get()->HandleWebRenderError(WebRenderError::NEW_SURFACE);
       return false;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/.gitignore firefox-trunk-95.0~a1~hg20211020r596404/.gitignore
--- firefox-trunk-95.0~a1~hg20211017r596111/.gitignore	2021-10-17 14:42:31.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/.gitignore	2021-10-20 19:28:14.000000000 +0000
@@ -163,7 +163,8 @@
 # Ignore files created when running a reftest.
 lextab.py
 
-# Ignore Visual Studio Code workspace files.
+# Ignore Visual Studio/Visual Studio Code workspace files.
+.vs/
 .vscode/
 !.vscode/extensions.json
 !.vscode/tasks.json
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/ImageFactory.cpp firefox-trunk-95.0~a1~hg20211020r596404/image/ImageFactory.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/image/ImageFactory.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/ImageFactory.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -114,7 +114,7 @@
   }
 #endif
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     static const size_t sMaxTruncatedLength = 1024;
     nsAutoCString spec;
     aURI->GetSpec(spec);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/Image.h firefox-trunk-95.0~a1~hg20211020r596404/image/Image.h
--- firefox-trunk-95.0~a1~hg20211017r596111/image/Image.h	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/Image.h	2021-10-20 19:28:21.000000000 +0000
@@ -451,7 +451,7 @@
     explicit AutoProfilerImagePaintMarker(ImageResource* self)
         : mStartTime(TimeStamp::Now()) {
       nsAutoCString spec;
-      if (self->mURI && profiler_can_accept_markers()) {
+      if (self->mURI && profiler_thread_is_being_profiled()) {
         static const size_t sMaxTruncatedLength = 1024;
         self->mURI->GetSpec(mSpec);
         if (mSpec.Length() >= sMaxTruncatedLength) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/RasterImage.cpp firefox-trunk-95.0~a1~hg20211020r596404/image/RasterImage.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/image/RasterImage.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/RasterImage.cpp	2021-10-20 19:28:20.000000000 +0000
@@ -50,6 +50,7 @@
 #include "nsProperties.h"
 #include "prenv.h"
 #include "prsystem.h"
+#include "WindowRenderer.h"
 
 namespace mozilla {
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug1180105.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug1180105.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug1180105.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug1180105.sjs	2021-10-20 19:28:22.000000000 +0000
@@ -8,8 +8,8 @@
 
 function getFileAsInputStream(aFilename) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
@@ -17,16 +17,19 @@
   file.append("mochitest");
   file.append(aFilename);
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
   return fileStream;
 }
 
-function handleRequest(request, response)
-{
-  response.setHeader("Content-Type",
-                     "multipart/x-mixed-replace;boundary=BOUNDARYOMG", false);
+function handleRequest(request, response) {
+  response.setHeader(
+    "Content-Type",
+    "multipart/x-mixed-replace;boundary=BOUNDARYOMG",
+    false
+  );
   response.setHeader("Cache-Control", "no-cache", false);
   response.setStatusLine(request.httpVersion, 200, "OK");
   // We're sending parts off in a delayed fashion, to let the tests occur.
@@ -42,8 +45,13 @@
     return;
   }
   sendNextPart(response);
-  partTimer.initWithCallback(function() {sendParts(response);}, 1,
-                             Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  partTimer.initWithCallback(
+    function() {
+      sendParts(response);
+    },
+    1,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
 
 function sendClose(response) {
@@ -60,4 +68,3 @@
   // Toss in the boundary, so the browser can know this part is complete
   response.write("--BOUNDARYOMG\r\n");
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug1180105-waiter.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug1180105-waiter.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug1180105-waiter.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug1180105-waiter.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -18,7 +18,12 @@
     response.write("done");
     response.finish();
   } else {
-    waitTimer.initWithCallback(function() {waitForFinish(response);}, 10,
-                               Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+    waitTimer.initWithCallback(
+      function() {
+        waitForFinish(response);
+      },
+      10,
+      Components.interfaces.nsITimer.TYPE_ONE_SHOT
+    );
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug468160.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug468160.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug468160.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug468160.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine("1.1", 302, "Found");
   response.setHeader("Location", "red.png", false);
   response.setHeader("Cache-Control", "no-cache", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug490949.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug490949.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug490949.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug490949.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -1,8 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
@@ -11,19 +10,21 @@
 
   var redirectstate = "/image/test/mochitest/bug490949.sjs";
   if (getState(redirectstate) == "") {
-    file.append('blue.png');
+    file.append("blue.png");
     setState(redirectstate, "red");
   } else {
-    file.append('red.png');
+    file.append("red.png");
     setState(redirectstate, "");
   }
   response.setHeader("Cache-Control", "no-cache", false);
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
-  var binaryStream = Components.classes['@mozilla.org/binaryinputstream;1']
-                     .createInstance(Components.interfaces.nsIBinaryInputStream);
+  var binaryStream = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   binaryStream.setInputStream(fileStream);
 
   response.bodyOutputStream.writeFrom(binaryStream, binaryStream.available());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug496292-1.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug496292-1.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug496292-1.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug496292-1.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -1,8 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
@@ -10,19 +9,21 @@
   file.append("mochitest");
 
   if (request.getHeader("Accept") == "image/avif,image/webp,*/*") {
-    file.append('blue.png');
+    file.append("blue.png");
   } else {
-    file.append('red.png');
+    file.append("red.png");
   }
   response.setStatusLine(request.httpVersion, 200, "OK");
   response.setHeader("Content-Type", "image/png", false);
   response.setHeader("Cache-Control", "no-cache", false);
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
-  var binaryStream = Components.classes['@mozilla.org/binaryinputstream;1']
-                     .createInstance(Components.interfaces.nsIBinaryInputStream);
+  var binaryStream = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   binaryStream.setInputStream(fileStream);
 
   response.bodyOutputStream.writeFrom(binaryStream, binaryStream.available());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug496292-2.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug496292-2.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug496292-2.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug496292-2.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -1,8 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
@@ -10,19 +9,21 @@
   file.append("mochitest");
 
   if (request.getHeader("Accept") == "image/png") {
-    file.append('blue.png');
+    file.append("blue.png");
   } else {
-    file.append('red.png');
+    file.append("red.png");
   }
   response.setStatusLine(request.httpVersion, 200, "OK");
   response.setHeader("Content-Type", "image/png", false);
   response.setHeader("Cache-Control", "no-cache", false);
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
-  var binaryStream = Components.classes['@mozilla.org/binaryinputstream;1']
-                     .createInstance(Components.interfaces.nsIBinaryInputStream);
+  var binaryStream = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   binaryStream.setInputStream(fileStream);
 
   response.bodyOutputStream.writeFrom(binaryStream, binaryStream.available());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug497665.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug497665.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug497665.sjs	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug497665.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -1,8 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
@@ -11,20 +10,22 @@
 
   var redirectstate = "/image/test/mochitest/bug497665.sjs";
   if (getState(redirectstate) == "") {
-    file.append('blue.png');
+    file.append("blue.png");
     setState(redirectstate, "red");
   } else {
-    file.append('red.png');
+    file.append("red.png");
     setState(redirectstate, "");
   }
 
   response.setHeader("Cache-Control", "max-age=3600", false);
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
-  var binaryStream = Components.classes['@mozilla.org/binaryinputstream;1']
-                     .createInstance(Components.interfaces.nsIBinaryInputStream);
+  var binaryStream = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   binaryStream.setInputStream(fileStream);
 
   response.bodyOutputStream.writeFrom(binaryStream, binaryStream.available());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug552605.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug552605.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug552605.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug552605.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var redirectstate = "/image/test/mochitest/bug89419.sjs";
   response.setStatusLine("1.1", 302, "Found");
   if (getState(redirectstate) == "") {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug657191.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug657191.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug657191.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug657191.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -1,23 +1,24 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
   file.append("test");
   file.append("mochitest");
-  file.append('lime100x100.svg');
+  file.append("lime100x100.svg");
 
   response.setStatusLine("1.1", 500, "Internal Server Error");
   response.setHeader("Content-Type", "image/svg+xml", false);
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
-  var binaryStream = Components.classes['@mozilla.org/binaryinputstream;1']
-                     .createInstance(Components.interfaces.nsIBinaryInputStream);
+  var binaryStream = Components.classes[
+    "@mozilla.org/binaryinputstream;1"
+  ].createInstance(Components.interfaces.nsIBinaryInputStream);
   binaryStream.setInputStream(fileStream);
 
   response.bodyOutputStream.writeFrom(binaryStream, binaryStream.available());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug671906.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug671906.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug671906.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug671906.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -1,8 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
@@ -11,10 +10,10 @@
 
   var filestate = "/image/test/mochitest/bug671906.sjs";
   if (getState(filestate) == "") {
-    file.append('blue.png');
+    file.append("blue.png");
     setState(filestate, "red");
   } else {
-    file.append('red.png');
+    file.append("red.png");
     setState(filestate, "");
   }
 
@@ -24,8 +23,9 @@
   date.setFullYear(date.getFullYear() + 1);
   response.setHeader("Expires", date.toUTCString(), false);
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
 
   response.bodyOutputStream.writeFrom(fileStream, fileStream.available());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug733553-informant.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug733553-informant.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug733553-informant.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug733553-informant.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -2,8 +2,7 @@
  * http://creativecommons.org/publicdomain/zero/1.0/
  */
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
   response.setHeader("Cache-Control", "no-cache", false);
   response.setStatusLine(request.httpVersion, 200, "OK");
@@ -12,4 +11,3 @@
   setSharedState("next-part", partName);
   response.write("OK!");
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug733553.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug733553.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug733553.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug733553.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -22,15 +22,15 @@
   ["bad.jpg", "image/jpeg"],
   ["red.png", "image/png"],
   ["invalid.jpg", "image/jpeg"],
-  ["animated-gif2.gif", "image/gif"]
+  ["animated-gif2.gif", "image/gif"],
 ];
 var timer = Components.classes["@mozilla.org/timer;1"];
 var partTimer = timer.createInstance(Components.interfaces.nsITimer);
 
 function getFileAsInputStream(aFilename) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
@@ -38,19 +38,22 @@
   file.append("mochitest");
   file.append(aFilename);
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
   return fileStream;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (!getSharedState("next-part")) {
     setSharedState("next-part", "-1");
   }
-  response.setHeader("Content-Type",
-                     "multipart/x-mixed-replace;boundary=BOUNDARYOMG", false);
+  response.setHeader(
+    "Content-Type",
+    "multipart/x-mixed-replace;boundary=BOUNDARYOMG",
+    false
+  );
   response.setHeader("Cache-Control", "no-cache", false);
   response.setStatusLine(request.httpVersion, 200, "OK");
   // We're sending parts off in a delayed fashion, to let the tests occur.
@@ -73,12 +76,16 @@
     if (!wait) {
       callback = getSendNextPart(response);
     } else {
-      callback = function () { sendParts(response); };
+      callback = function() {
+        sendParts(response);
+      };
     }
-    partTimer.initWithCallback(callback, 1000,
-                               Components.interfaces.nsITimer.TYPE_ONE_SHOT);
-  }
-  else {
+    partTimer.initWithCallback(
+      callback,
+      1000,
+      Components.interfaces.nsITimer.TYPE_ONE_SHOT
+    );
+  } else {
     sendClose(response);
   }
 }
@@ -92,13 +99,12 @@
   var part = bodyParts[bodyPartIndex];
   var nextPartHead = "Content-Type: " + part[1] + "\r\n\r\n";
   var inputStream = getFileAsInputStream(part[0]);
-  return function () {
+  return function() {
     response.bodyOutputStream.write(nextPartHead, nextPartHead.length);
     response.bodyOutputStream.writeFrom(inputStream, inputStream.available());
     inputStream.close();
     // Toss in the boundary, so the browser can know this part is complete
     response.write("--BOUNDARYOMG\r\n");
     sendParts(response);
-  }
+  };
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug767779.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug767779.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug767779.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug767779.sjs	2021-10-20 19:28:22.000000000 +0000
@@ -7,8 +7,8 @@
 
 function getFileAsInputStream(aFilename) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
@@ -16,14 +16,14 @@
   file.append("mochitest");
   file.append(aFilename);
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
   return fileStream;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "image/gif", false);
   response.setHeader("Cache-Control", "no-cache", false);
   response.setStatusLine(request.httpVersion, 200, "OK");
@@ -38,12 +38,15 @@
 
 function sendParts(inputStream, response) {
   // 3744 left, send in 8 chunks of 468 each
-  partTimer.initWithCallback(getSendNextPart(inputStream, response), 500,
-                             Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+  partTimer.initWithCallback(
+    getSendNextPart(inputStream, response),
+    500,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
 
 function getSendNextPart(inputStream, response) {
-  return function () {
+  return function() {
     response.bodyOutputStream.writeFrom(inputStream, 468);
     if (!inputStream.available()) {
       inputStream.close();
@@ -53,4 +56,3 @@
     }
   };
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug89419.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug89419.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/bug89419.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/bug89419.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var redirectstate = "/image/test/mochitest/bug89419.sjs";
   response.setStatusLine("1.1", 302, "Found");
   if (getState(redirectstate) == "") {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/test_mq_dynamic_svg.html firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/test_mq_dynamic_svg.html
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/test_mq_dynamic_svg.html	2021-10-17 14:42:37.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/test_mq_dynamic_svg.html	2021-10-20 19:28:21.000000000 +0000
@@ -23,13 +23,13 @@
 async function run() {
   let loadedFrame1 = new Promise(resolve => f1.onload = resolve);
   let loadedFrame2 = new Promise(resolve => f2.onload = resolve);
-  await SpecialPowers.pushPrefEnv({ set: [["ui.systemUsesDarkTheme", 0]] });
+  await SpecialPowers.pushPrefEnv({ set: [["layout.css.prefers-color-scheme.content-override", 1]] });
   f1.src = "mq_dynamic_svg_test.html";
   f2.src = "mq_dynamic_svg_ref.html";
   await loadedFrame1;
   await loadedFrame2;
   ok(!snapshotsEqual(), "In light mode snapshot comparison should be false");
-  await SpecialPowers.pushPrefEnv({ set: [["ui.systemUsesDarkTheme", 1]] });
+  await SpecialPowers.pushPrefEnv({ set: [["layout.css.prefers-color-scheme.content-override", 0]] });
   ok(snapshotsEqual(), "In dark mode snapshot comparison should be true");
   SimpleTest.finish();
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/webcam-simulacrum.sjs firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/webcam-simulacrum.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/mochitest/webcam-simulacrum.sjs	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/mochitest/webcam-simulacrum.sjs	2021-10-20 19:28:21.000000000 +0000
@@ -3,14 +3,14 @@
  */
 
 var counter = 2;
-var frames = ['red.gif', 'blue.gif'];
+var frames = ["red.gif", "blue.gif"];
 var timer = Components.classes["@mozilla.org/timer;1"];
 var partTimer = timer.createInstance(Components.interfaces.nsITimer);
 
 function getFileAsInputStream(aFilename) {
   var file = Components.classes["@mozilla.org/file/directory_service;1"]
-             .getService(Components.interfaces.nsIProperties)
-             .get("CurWorkD", Components.interfaces.nsIFile);
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
 
   file.append("tests");
   file.append("image");
@@ -18,21 +18,24 @@
   file.append("mochitest");
   file.append(aFilename);
 
-  var fileStream = Components.classes['@mozilla.org/network/file-input-stream;1']
-                   .createInstance(Components.interfaces.nsIFileInputStream);
+  var fileStream = Components.classes[
+    "@mozilla.org/network/file-input-stream;1"
+  ].createInstance(Components.interfaces.nsIFileInputStream);
   fileStream.init(file, 1, 0, false);
   return fileStream;
 }
 
-function handleRequest(request, response)
-{
-  response.setHeader("Content-Type",
-                     "multipart/x-mixed-replace;boundary=BOUNDARYOMG", false);
+function handleRequest(request, response) {
+  response.setHeader(
+    "Content-Type",
+    "multipart/x-mixed-replace;boundary=BOUNDARYOMG",
+    false
+  );
   response.setHeader("Cache-Control", "no-cache", false);
   response.setStatusLine(request.httpVersion, 200, "OK");
   response.processAsync();
   response.write("--BOUNDARYOMG\r\n");
-  while (frames.length > 0) {
+  while (frames.length) {
     sendNextPart(response);
   }
   response.write("--BOUNDARYOMG--\r\n");
@@ -48,4 +51,3 @@
   // Toss in the boundary, so the browser can know this part is complete
   response.write("--BOUNDARYOMG\r\n");
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/image/test/reftest/downscaling/reftest.list firefox-trunk-95.0~a1~hg20211020r596404/image/test/reftest/downscaling/reftest.list
--- firefox-trunk-95.0~a1~hg20211017r596111/image/test/reftest/downscaling/reftest.list	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/image/test/reftest/downscaling/reftest.list	2021-10-20 19:28:22.000000000 +0000
@@ -98,9 +98,6 @@
 == downscale-16px.html?ff-0RGB.ico downscale-16px.html?ff-0RGB.png
 fuzzy(0-1,0-1) fuzzy-if(gtkWidget&&swgl,1-1,1-1) == downscale-16px.html?ff-ARGB.ico downscale-16px.html?ff-ARGB.png
 
-# Upside-down (negative height) BMP
-== downscale-8px.html?top-to-bottom-16x16-24bpp.bmp downscale-8px.html?bmp-size-16x16-24bpp.png
-
 # Test downscaling from all supported formats from 256 to 32.
 == downscale-32px.html?.bmp downscale-32px-ref.html
 == downscale-32px.html?.gif downscale-32px-ref.html
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/components/gtest/TestDateTimeFormat.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/components/gtest/TestDateTimeFormat.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/components/gtest/TestDateTimeFormat.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/components/gtest/TestDateTimeFormat.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -179,6 +179,14 @@
   ASSERT_TRUE(buffer.verboseMatches(u"yMd"));
 }
 
+TEST(IntlDateTimePatternGenerator, GetPlaceholderPattern)
+{
+  auto gen = DateTimePatternGenerator::TryCreate("en").unwrap();
+  auto span = gen->GetPlaceholderPattern();
+  // The default date-time pattern for 'en' locale is u"{1}, {0}".
+  ASSERT_EQ(span, MakeStringSpan(u"{1}, {0}"));
+}
+
 // A utility function to help test the DateTimeFormat::ComponentsBag.
 [[nodiscard]] bool FormatComponents(
     TestBuffer<char16_t>& aBuffer, DateTimeFormat::ComponentsBag& aComponents,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/components/gtest/TestLocale.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/components/gtest/TestLocale.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/components/gtest/TestLocale.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/components/gtest/TestLocale.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -4,12 +4,85 @@
 #include "gtest/gtest.h"
 
 #include "mozilla/intl/Locale.h"
+#include "mozilla/Span.h"
 
-#include <stdint.h>
-#include <string_view>
+#include "TestBuffer.h"
 
 namespace mozilla::intl {
 
+TEST(IntlLocale, LocaleSettersAndGetters)
+{
+  Locale locale;
+  locale.setLanguage("fr");
+  locale.setRegion("CA");
+  locale.setScript("Latn");
+  ASSERT_TRUE(locale.setUnicodeExtension("u-ca-gregory"));
+  ASSERT_TRUE(locale.language().equalTo("fr"));
+  ASSERT_TRUE(locale.region().equalTo("CA"));
+  ASSERT_TRUE(locale.script().equalTo("Latn"));
+  ASSERT_EQ(MakeStringSpan(locale.unicodeExtension()),
+            MakeStringSpan("u-ca-gregory"));
+
+  TestBuffer<char> buffer;
+  ASSERT_TRUE(locale.toString(buffer).isOk());
+  ASSERT_TRUE(buffer.verboseMatches("fr-Latn-CA-u-ca-gregory"));
+
+  // No setters for variants or other extensions...
+  Locale locale2;
+  ASSERT_TRUE(LocaleParser::tryParse(
+                  MakeStringSpan("fr-CA-fonipa-t-es-AR-h0-hybrid"), locale2)
+                  .isOk());
+  ASSERT_EQ(MakeStringSpan(locale2.variants()[0].get()),
+            MakeStringSpan("fonipa"));
+  ASSERT_EQ(MakeStringSpan(locale2.extensions()[0].get()),
+            MakeStringSpan("t-es-AR-h0-hybrid"));
+  locale2.clearVariants();
+  ASSERT_EQ(locale2.variants().length(), 0UL);
+}
+
+TEST(IntlLocale, LocaleParser)
+{
+  const char* tags[] = {
+      "en-US",       "en-GB",       "es-AR",      "it",         "zh-Hans-CN",
+      "de-AT",       "pl",          "fr-FR",      "de-AT",      "sr-Cyrl-SR",
+      "nb-NO",       "fr-FR",       "mk",         "uk",         "und-PL",
+      "und-Latn-AM", "ug-Cyrl",     "sr-ME",      "mn-Mong",    "lif-Limb",
+      "gan",         "zh-Hant",     "yue-Hans",   "unr",        "unr-Deva",
+      "und-Thai-CN", "ug-Cyrl",     "en-Latn-DE", "pl-FR",      "de-CH",
+      "tuq",         "sr-ME",       "ng",         "klx",        "kk-Arab",
+      "en-Cyrl",     "und-Cyrl-UK", "und-Arab",   "und-Arab-FO"};
+
+  Locale locale;
+  for (const auto* tag : tags) {
+    ASSERT_TRUE(LocaleParser::tryParse(MakeStringSpan(tag), locale).isOk());
+  }
+}
+
+TEST(IntlLocale, LikelySubtags)
+{
+  Locale locale;
+  ASSERT_TRUE(LocaleParser::tryParse(MakeStringSpan("zh"), locale).isOk());
+  ASSERT_TRUE(locale.addLikelySubtags());
+  TestBuffer<char> buffer;
+  ASSERT_TRUE(locale.toString(buffer).isOk());
+  ASSERT_TRUE(buffer.verboseMatches("zh-Hans-CN"));
+  ASSERT_TRUE(locale.removeLikelySubtags());
+  buffer.clear();
+  ASSERT_TRUE(locale.toString(buffer).isOk());
+  ASSERT_TRUE(buffer.verboseMatches("zh"));
+}
+
+TEST(IntlLocale, Canonicalize)
+{
+  Locale locale;
+  ASSERT_TRUE(
+      LocaleParser::tryParse(MakeStringSpan("nob-bokmal"), locale).isOk());
+  ASSERT_TRUE(locale.canonicalize().isOk());
+  TestBuffer<char> buffer;
+  ASSERT_TRUE(locale.toString(buffer).isOk());
+  ASSERT_TRUE(buffer.verboseMatches("nb"));
+}
+
 // These tests are dependent on the machine that this test is being run on.
 TEST(IntlLocale, SystemDependentTests)
 {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/components/moz.build firefox-trunk-95.0~a1~hg20211020r596404/intl/components/moz.build
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/components/moz.build	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/components/moz.build	2021-10-20 19:28:22.000000000 +0000
@@ -35,7 +35,9 @@
     "src/ICU4CGlue.cpp",
     "src/ICU4CLibrary.cpp",
     "src/ListFormat.cpp",
+    "src/Locale.cpp",
     "src/LocaleCanonicalizer.cpp",
+    "src/LocaleGenerated.cpp",
     "src/MeasureUnit.cpp",
     "src/NumberFormat.cpp",
     "src/NumberFormatFields.cpp",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/components/src/DateTimePatternGenerator.h firefox-trunk-95.0~a1~hg20211020r596404/intl/components/src/DateTimePatternGenerator.h
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/components/src/DateTimePatternGenerator.h	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/components/src/DateTimePatternGenerator.h	2021-10-20 19:28:22.000000000 +0000
@@ -93,6 +93,28 @@
   }
 
   /**
+   * Get a pattern of the form "{1} {0}" to combine separate date and time
+   * patterns into a single pattern. The "{0}" part is the placeholder for the
+   * time pattern and "{1}" is the placeholder for the date pattern.
+   *
+   * See dateTimeFormat from
+   * https://unicode.org/reports/tr35/tr35-dates.html#dateTimeFormat
+   *
+   * Note:
+   * In CLDR, it's called Date-Time Combined Format
+   * https://cldr.unicode.org/translation/date-time/datetime-patterns#h.x7ca7qwzh4m
+   *
+   * The naming 'placeholder pattern' is from ICU4X.
+   * https://unicode-org.github.io/icu4x-docs/doc/icu_pattern/index.html
+   */
+  Span<const char16_t> GetPlaceholderPattern() const {
+    int32_t length;
+    const char16_t* combined =
+        udatpg_getDateTimeFormat(mGenerator.GetConst(), &length);
+    return Span{combined, static_cast<size_t>(length)};
+  }
+
+  /**
    * TODO(Bug 1686965) - Temporarily get the underlying ICU object while
    * migrating to the unified API. This should be removed when completing the
    * migration.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/components/src/Locale.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/components/src/Locale.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/components/src/Locale.cpp	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/components/src/Locale.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -0,0 +1,1469 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/intl/Locale.h"
+
+#include "mozilla/Assertions.h"
+#include "mozilla/DebugOnly.h"
+#include "mozilla/MathAlgorithms.h"
+#include "mozilla/Span.h"
+#include "mozilla/TextUtils.h"
+#include "mozilla/Variant.h"
+
+#include "ICU4CGlue.h"
+
+#include <algorithm>
+#include <iterator>
+#include <stddef.h>
+#include <stdint.h>
+#include <string>
+#include <string.h>
+#include <type_traits>
+#include <utility>
+
+#include "unicode/uloc.h"
+#include "unicode/utypes.h"
+
+namespace mozilla::intl {
+
+using namespace intl::LanguageTagLimits;
+
+template <typename CharT>
+bool IsStructurallyValidLanguageTag(Span<const CharT> language) {
+  // unicode_language_subtag = alpha{2,3} | alpha{5,8};
+  size_t length = language.size();
+  const CharT* str = language.data();
+  return ((2 <= length && length <= 3) || (5 <= length && length <= 8)) &&
+         std::all_of(str, str + length, IsAsciiAlpha<CharT>);
+}
+
+template bool IsStructurallyValidLanguageTag(Span<const char> language);
+template bool IsStructurallyValidLanguageTag(Span<const Latin1Char> language);
+template bool IsStructurallyValidLanguageTag(Span<const char16_t> language);
+
+template <typename CharT>
+bool IsStructurallyValidScriptTag(Span<const CharT> script) {
+  // unicode_script_subtag = alpha{4} ;
+  size_t length = script.size();
+  const CharT* str = script.data();
+  return length == 4 && std::all_of(str, str + length, IsAsciiAlpha<CharT>);
+}
+
+template bool IsStructurallyValidScriptTag(Span<const char> script);
+template bool IsStructurallyValidScriptTag(Span<const Latin1Char> script);
+template bool IsStructurallyValidScriptTag(Span<const char16_t> script);
+
+template <typename CharT>
+bool IsStructurallyValidRegionTag(Span<const CharT> region) {
+  // unicode_region_subtag = (alpha{2} | digit{3}) ;
+  size_t length = region.size();
+  const CharT* str = region.data();
+  return (length == 2 && std::all_of(str, str + length, IsAsciiAlpha<CharT>)) ||
+         (length == 3 && std::all_of(str, str + length, IsAsciiDigit<CharT>));
+}
+
+template bool IsStructurallyValidRegionTag(Span<const char> region);
+template bool IsStructurallyValidRegionTag(Span<const Latin1Char> region);
+template bool IsStructurallyValidRegionTag(Span<const char16_t> region);
+
+#ifdef DEBUG
+bool IsStructurallyValidVariantTag(Span<const char> variant) {
+  // unicode_variant_subtag = (alphanum{5,8} | digit alphanum{3}) ;
+  size_t length = variant.size();
+  const char* str = variant.data();
+  return ((5 <= length && length <= 8) ||
+          (length == 4 && IsAsciiDigit(str[0]))) &&
+         std::all_of(str, str + length, IsAsciiAlphanumeric<char>);
+}
+
+bool IsStructurallyValidUnicodeExtensionTag(Span<const char> extension) {
+  return LocaleParser::canParseUnicodeExtension(extension).isOk();
+}
+
+static bool IsStructurallyValidExtensionTag(Span<const char> extension) {
+  // other_extensions = sep [alphanum-[tTuUxX]] (sep alphanum{2,8})+ ;
+  // NB: Allow any extension, including Unicode and Transform here, because
+  // this function is only used for an assertion.
+
+  size_t length = extension.size();
+  const char* str = extension.data();
+  const char* const end = extension.data() + length;
+  if (length <= 2) {
+    return false;
+  }
+  if (!IsAsciiAlphanumeric(str[0]) || str[0] == 'x' || str[0] == 'X') {
+    return false;
+  }
+  str++;
+  if (*str++ != '-') {
+    return false;
+  }
+  while (true) {
+    const char* sep =
+        reinterpret_cast<const char*>(memchr(str, '-', end - str));
+    size_t len = (sep ? sep : end) - str;
+    if (len < 2 || len > 8 ||
+        !std::all_of(str, str + len, IsAsciiAlphanumeric<char>)) {
+      return false;
+    }
+    if (!sep) {
+      return true;
+    }
+    str = sep + 1;
+  }
+}
+
+bool IsStructurallyValidPrivateUseTag(Span<const char> privateUse) {
+  // pu_extensions = sep [xX] (sep alphanum{1,8})+ ;
+
+  size_t length = privateUse.size();
+  const char* str = privateUse.data();
+  const char* const end = privateUse.data() + length;
+  if (length <= 2) {
+    return false;
+  }
+  if (str[0] != 'x' && str[0] != 'X') {
+    return false;
+  }
+  str++;
+  if (*str++ != '-') {
+    return false;
+  }
+  while (true) {
+    const char* sep =
+        reinterpret_cast<const char*>(memchr(str, '-', end - str));
+    size_t len = (sep ? sep : end) - str;
+    if (len == 0 || len > 8 ||
+        !std::all_of(str, str + len, IsAsciiAlphanumeric<char>)) {
+      return false;
+    }
+    if (!sep) {
+      return true;
+    }
+    str = sep + 1;
+  }
+}
+#endif
+
+ptrdiff_t Locale::unicodeExtensionIndex() const {
+  // The extension subtags aren't necessarily sorted, so we can't use binary
+  // search here.
+  auto p = std::find_if(
+      extensions().begin(), extensions().end(),
+      [](const auto& ext) { return ext[0] == 'u' || ext[0] == 'U'; });
+  if (p != extensions().end()) {
+    return std::distance(extensions().begin(), p);
+  }
+  return -1;
+}
+
+const char* Locale::unicodeExtension() const {
+  ptrdiff_t index = unicodeExtensionIndex();
+  if (index >= 0) {
+    return extensions()[index].get();
+  }
+  return nullptr;
+}
+
+bool Locale::setUnicodeExtension(const char* extension) {
+  MOZ_ASSERT(IsStructurallyValidUnicodeExtensionTag(MakeStringSpan(extension)));
+
+  auto duplicated = DuplicateStringToUniqueChars(extension);
+
+  // Replace the existing Unicode extension subtag or append a new one.
+  ptrdiff_t index = unicodeExtensionIndex();
+  if (index >= 0) {
+    extensions_[index] = std::move(duplicated);
+    return true;
+  }
+  return extensions_.append(std::move(duplicated));
+}
+
+void Locale::clearUnicodeExtension() {
+  ptrdiff_t index = unicodeExtensionIndex();
+  if (index >= 0) {
+    extensions_.erase(extensions_.begin() + index);
+  }
+}
+
+template <size_t InitialCapacity>
+static bool SortAlphabetically(Vector<UniqueChars, InitialCapacity>& subtags) {
+  size_t length = subtags.length();
+
+  // Zero or one element lists are already sorted.
+  if (length < 2) {
+    return true;
+  }
+
+  // Handle two element lists inline.
+  if (length == 2) {
+    if (strcmp(subtags[0].get(), subtags[1].get()) > 0) {
+      subtags[0].swap(subtags[1]);
+    }
+    return true;
+  }
+
+  Vector<char*, 8> scratch;
+  if (!scratch.resizeUninitialized(length)) {
+    return false;
+  }
+  for (size_t i = 0; i < length; i++) {
+    scratch[i] = subtags[i].release();
+  }
+
+  std::stable_sort(
+      scratch.begin(), scratch.end(),
+      [](const char* a, const char* b) { return strcmp(a, b) < 0; });
+
+  for (size_t i = 0; i < length; i++) {
+    subtags[i] = UniqueChars(scratch[i]);
+  }
+  return true;
+}
+
+Result<Ok, Locale::CanonicalizationError> Locale::canonicalizeBaseName() {
+  // Per 6.2.3 CanonicalizeUnicodeLocaleId, the very first step is to
+  // canonicalize the syntax by normalizing the case and ordering all subtags.
+  // The canonical syntax form is specified in UTS 35, 3.2.1.
+
+  // Language codes need to be in lower case. "JA" -> "ja"
+  language_.toLowerCase();
+  MOZ_ASSERT(IsStructurallyValidLanguageTag(language().span()));
+
+  // The first character of a script code needs to be capitalized.
+  // "hans" -> "Hans"
+  script_.toTitleCase();
+  MOZ_ASSERT(script().missing() ||
+             IsStructurallyValidScriptTag(script().span()));
+
+  // Region codes need to be in upper case. "bu" -> "BU"
+  region_.toUpperCase();
+  MOZ_ASSERT(region().missing() ||
+             IsStructurallyValidRegionTag(region().span()));
+
+  // The canonical case for variant subtags is lowercase.
+  for (UniqueChars& variant : variants_) {
+    char* variantChars = variant.get();
+    size_t variantLength = strlen(variantChars);
+    AsciiToLowerCase(variantChars, variantLength, variantChars);
+
+    MOZ_ASSERT(IsStructurallyValidVariantTag({variantChars, variantLength}));
+  }
+
+  // Extensions and privateuse subtags are case normalized in the
+  // |canonicalizeExtensions| method.
+
+  // The second step in UTS 35, 3.2.1, is to order all subtags.
+
+  if (variants_.length() > 1) {
+    // 1. Any variants are in alphabetical order.
+    if (!SortAlphabetically(variants_)) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+
+    // Reject the Locale identifier if a duplicate variant was found, e.g.
+    // "en-variant-Variant".
+    const UniqueChars* duplicate = std::adjacent_find(
+        variants().begin(), variants().end(), [](const auto& a, const auto& b) {
+          return strcmp(a.get(), b.get()) == 0;
+        });
+    if (duplicate != variants().end()) {
+      return Err(CanonicalizationError::DuplicateVariant);
+    }
+  }
+
+  // 2. Any extensions are in alphabetical order by their singleton.
+  // 3. All attributes are sorted in alphabetical order.
+  // 4. All keywords and tfields are sorted by alphabetical order of their keys,
+  //    within their respective extensions.
+  // 5. Any type or tfield value "true" is removed.
+  // - A subsequent call to canonicalizeExtensions() will perform these steps.
+
+  // 6.2.3 CanonicalizeUnicodeLocaleId, step 2 transforms the locale identifier
+  // into its canonical form per UTS 3.2.1.
+
+  // 1. Use the bcp47 data to replace keys, types, tfields, and tvalues by their
+  // canonical forms.
+  // - A subsequent call to canonicalizeExtensions() will perform this step.
+
+  // 2. Replace aliases in the unicode_language_id and tlang (if any).
+  // - tlang is handled in canonicalizeExtensions().
+
+  // Replace deprecated language, region, and variant subtags with their
+  // preferred mappings.
+
+  if (!updateLegacyMappings()) {
+    return Err(CanonicalizationError::OutOfMemory);
+  }
+
+  // Replace deprecated language subtags with their preferred values.
+  if (!languageMapping(language_) && complexLanguageMapping(language_)) {
+    performComplexLanguageMappings();
+  }
+
+  // Replace deprecated script subtags with their preferred values.
+  if (script().present()) {
+    scriptMapping(script_);
+  }
+
+  // Replace deprecated region subtags with their preferred values.
+  if (region().present()) {
+    if (!regionMapping(region_) && complexRegionMapping(region_)) {
+      performComplexRegionMappings();
+    }
+  }
+
+  // Replace deprecated variant subtags with their preferred values.
+  if (!performVariantMappings()) {
+    return Err(CanonicalizationError::OutOfMemory);
+  }
+
+  // No extension replacements are currently present.
+  // Private use sequences are left as is.
+
+  // 3. Replace aliases in special key values.
+  // - A subsequent call to canonicalizeExtensions() will perform this step.
+
+  return Ok();
+}
+
+#ifdef DEBUG
+static bool IsAsciiLowercaseAlphanumericOrDash(Span<const char> span) {
+  const char* ptr = span.data();
+  size_t length = span.size();
+  return std::all_of(ptr, ptr + length, [](auto c) {
+    return IsAsciiLowercaseAlpha(c) || IsAsciiDigit(c) || c == '-';
+  });
+}
+#endif
+
+Result<Ok, Locale::CanonicalizationError> Locale::canonicalizeExtensions() {
+  // The canonical case for all extension subtags is lowercase.
+  for (UniqueChars& extension : extensions_) {
+    char* extensionChars = extension.get();
+    size_t extensionLength = strlen(extensionChars);
+    AsciiToLowerCase(extensionChars, extensionLength, extensionChars);
+
+    MOZ_ASSERT(
+        IsStructurallyValidExtensionTag({extensionChars, extensionLength}));
+  }
+
+  // Any extensions are in alphabetical order by their singleton.
+  // "u-ca-chinese-t-zh-latn" -> "t-zh-latn-u-ca-chinese"
+  if (!SortAlphabetically(extensions_)) {
+    return Err(CanonicalizationError::OutOfMemory);
+  }
+
+  for (UniqueChars& extension : extensions_) {
+    if (extension[0] == 'u') {
+      MOZ_TRY(canonicalizeUnicodeExtension(extension));
+    } else if (extension[0] == 't') {
+      MOZ_TRY(canonicalizeTransformExtension(extension));
+    }
+
+    MOZ_ASSERT(
+        IsAsciiLowercaseAlphanumericOrDash(MakeStringSpan(extension.get())));
+  }
+
+  // The canonical case for privateuse subtags is lowercase.
+  if (char* privateuse = privateuse_.get()) {
+    size_t privateuseLength = strlen(privateuse);
+    AsciiToLowerCase(privateuse, privateuseLength, privateuse);
+
+    MOZ_ASSERT(
+        IsStructurallyValidPrivateUseTag({privateuse, privateuseLength}));
+  }
+  return Ok();
+}
+
+/**
+ * CanonicalizeUnicodeExtension( attributes, keywords )
+ *
+ * Canonical syntax per
+ * <https://unicode.org/reports/tr35/#Canonical_Unicode_Locale_Identifiers>:
+ *
+ * - All attributes and keywords are in lowercase.
+ *   - Note: The parser already converted keywords to lowercase.
+ * - All attributes are sorted in alphabetical order.
+ * - All keywords are sorted by alphabetical order of their keys.
+ * - Any type value "true" is removed.
+ *
+ * Canonical form:
+ * - All keys and types use the canonical form (from the name attribute;
+ *   see Section 3.6.4 U Extension Data Files).
+ */
+Result<Ok, Locale::CanonicalizationError> Locale::canonicalizeUnicodeExtension(
+    UniqueChars& unicodeExtension) {
+  const char* const extension = unicodeExtension.get();
+  MOZ_ASSERT(extension[0] == 'u');
+  MOZ_ASSERT(extension[1] == '-');
+  MOZ_ASSERT(IsStructurallyValidExtensionTag(MakeStringSpan(extension)));
+
+  size_t length = strlen(extension);
+
+  LocaleParser::AttributesVector attributes;
+  LocaleParser::KeywordsVector keywords;
+
+  using Attribute = LocaleParser::AttributesVector::ElementType;
+  using Keyword = LocaleParser::KeywordsVector::ElementType;
+
+  if (LocaleParser::parseUnicodeExtension(Span(extension, length), attributes,
+                                          keywords)
+          .isErr()) {
+    MOZ_ASSERT_UNREACHABLE("unexpected invalid Unicode extension subtag");
+    return Err(CanonicalizationError::InternalError);
+  }
+
+  auto attributesLess = [extension](const Attribute& a, const Attribute& b) {
+    const char* astr = a.begin(extension);
+    const char* bstr = b.begin(extension);
+    size_t alen = a.length();
+    size_t blen = b.length();
+
+    if (int r =
+            std::char_traits<char>::compare(astr, bstr, std::min(alen, blen))) {
+      return r < 0;
+    }
+    return alen < blen;
+  };
+
+  // All attributes are sorted in alphabetical order.
+  if (attributes.length() > 1) {
+    std::stable_sort(attributes.begin(), attributes.end(), attributesLess);
+  }
+
+  auto keywordsLess = [extension](const Keyword& a, const Keyword& b) {
+    const char* astr = a.begin(extension);
+    const char* bstr = b.begin(extension);
+    MOZ_ASSERT(a.length() >= UnicodeKeyLength);
+    MOZ_ASSERT(b.length() >= UnicodeKeyLength);
+
+    return std::char_traits<char>::compare(astr, bstr, UnicodeKeyLength) < 0;
+  };
+
+  // All keywords are sorted by alphabetical order of keys.
+  if (keywords.length() > 1) {
+    // Using a stable sort algorithm, guarantees that two keywords using the
+    // same key are never reordered. That means for example
+    // when we have the input "u-nu-thai-kf-false-nu-latn", we are guaranteed to
+    // get the result "u-kf-false-nu-thai-nu-latn", i.e. "nu-thai" still occurs
+    // before "nu-latn".
+    // This is required so that deduplication below preserves the first keyword
+    // for a given key and discards the rest.
+    std::stable_sort(keywords.begin(), keywords.end(), keywordsLess);
+  }
+
+  Vector<char, 32> sb;
+  if (!sb.append('u')) {
+    return Err(CanonicalizationError::OutOfMemory);
+  }
+
+  // Append all Unicode extension attributes.
+  for (size_t i = 0; i < attributes.length(); i++) {
+    const auto& attribute = attributes[i];
+
+    // Skip duplicate attributes.
+    if (i > 0) {
+      const auto& lastAttribute = attributes[i - 1];
+      if (attribute.length() == lastAttribute.length() &&
+          std::char_traits<char>::compare(attribute.begin(extension),
+                                          lastAttribute.begin(extension),
+                                          attribute.length()) == 0) {
+        continue;
+      }
+      MOZ_ASSERT(attributesLess(lastAttribute, attribute));
+    }
+
+    if (!sb.append('-')) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+    if (!sb.append(attribute.begin(extension), attribute.length())) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+  }
+
+  static constexpr size_t UnicodeKeyWithSepLength = UnicodeKeyLength + 1;
+
+  using StringSpan = Span<const char>;
+
+  static auto isTrue = [](StringSpan type) {
+    static constexpr char True[] = "true";
+    constexpr size_t TrueLength = std::char_traits<char>::length(True);
+    return type.size() == TrueLength &&
+           std::char_traits<char>::compare(type.data(), True, TrueLength) == 0;
+  };
+
+  auto appendKey = [&sb, extension](const Keyword& keyword) {
+    MOZ_ASSERT(keyword.length() == UnicodeKeyLength);
+    return sb.append(keyword.begin(extension), UnicodeKeyLength);
+  };
+
+  auto appendKeyword = [&sb, extension](const Keyword& keyword,
+                                        StringSpan type) {
+    MOZ_ASSERT(keyword.length() > UnicodeKeyLength);
+
+    // Elide the Unicode extension type "true".
+    if (isTrue(type)) {
+      return sb.append(keyword.begin(extension), UnicodeKeyLength);
+    }
+    // Otherwise append the complete Unicode extension keyword.
+    return sb.append(keyword.begin(extension), keyword.length());
+  };
+
+  auto appendReplacement = [&sb, extension](const Keyword& keyword,
+                                            StringSpan replacement) {
+    MOZ_ASSERT(keyword.length() > UnicodeKeyLength);
+
+    // Elide the type "true" if present in the replacement.
+    if (isTrue(replacement)) {
+      return sb.append(keyword.begin(extension), UnicodeKeyLength);
+    }
+    // Otherwise append the Unicode key (including the separator) and the
+    // replaced type.
+    return sb.append(keyword.begin(extension), UnicodeKeyWithSepLength) &&
+           sb.append(replacement.data(), replacement.size());
+  };
+
+  // Append all Unicode extension keywords.
+  for (size_t i = 0; i < keywords.length(); i++) {
+    const auto& keyword = keywords[i];
+
+    // Skip duplicate keywords.
+    if (i > 0) {
+      const auto& lastKeyword = keywords[i - 1];
+      if (std::char_traits<char>::compare(keyword.begin(extension),
+                                          lastKeyword.begin(extension),
+                                          UnicodeKeyLength) == 0) {
+        continue;
+      }
+      MOZ_ASSERT(keywordsLess(lastKeyword, keyword));
+    }
+
+    if (!sb.append('-')) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+
+    if (keyword.length() == UnicodeKeyLength) {
+      // Keyword without type value.
+      if (!appendKey(keyword)) {
+        return Err(CanonicalizationError::OutOfMemory);
+      }
+    } else {
+      StringSpan key(keyword.begin(extension), UnicodeKeyLength);
+      StringSpan type(keyword.begin(extension) + UnicodeKeyWithSepLength,
+                      keyword.length() - UnicodeKeyWithSepLength);
+
+      // Search if there's a replacement for the current Unicode keyword.
+      if (const char* replacement = replaceUnicodeExtensionType(key, type)) {
+        if (!appendReplacement(keyword, MakeStringSpan(replacement))) {
+          return Err(CanonicalizationError::OutOfMemory);
+        }
+      } else {
+        if (!appendKeyword(keyword, type)) {
+          return Err(CanonicalizationError::OutOfMemory);
+        }
+      }
+    }
+  }
+
+  // We can keep the previous extension when canonicalization didn't modify it.
+  if (sb.length() != length ||
+      std::char_traits<char>::compare(sb.begin(), extension, length) != 0) {
+    // Null-terminate the new string and replace the previous extension.
+    if (!sb.append('\0')) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+    UniqueChars canonical(sb.extractOrCopyRawBuffer());
+    if (!canonical) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+    unicodeExtension = std::move(canonical);
+  }
+
+  return Ok();
+}
+
+template <class Buffer>
+static bool LocaleToString(const Locale& tag, Buffer& sb) {
+  auto appendSubtag = [&sb](const auto& subtag) {
+    auto span = subtag.span();
+    MOZ_ASSERT(!span.empty());
+    return sb.append(span.data(), span.size());
+  };
+
+  auto appendSubtagZ = [&sb](const char* subtag) {
+    MOZ_ASSERT(strlen(subtag) > 0);
+    return sb.append(subtag, strlen(subtag));
+  };
+
+  auto appendSubtagsZ = [&sb, &appendSubtagZ](const auto& subtags) {
+    for (const auto& subtag : subtags) {
+      if (!sb.append('-') || !appendSubtagZ(subtag.get())) {
+        return false;
+      }
+    }
+    return true;
+  };
+
+  // Append the language subtag.
+  if (!appendSubtag(tag.language())) {
+    return false;
+  }
+
+  // Append the script subtag if present.
+  if (tag.script().present()) {
+    if (!sb.append('-') || !appendSubtag(tag.script())) {
+      return false;
+    }
+  }
+
+  // Append the region subtag if present.
+  if (tag.region().present()) {
+    if (!sb.append('-') || !appendSubtag(tag.region())) {
+      return false;
+    }
+  }
+
+  // Append the variant subtags if present.
+  if (!appendSubtagsZ(tag.variants())) {
+    return false;
+  }
+
+  // Append the extensions subtags if present.
+  if (!appendSubtagsZ(tag.extensions())) {
+    return false;
+  }
+
+  // Append the private-use subtag if present.
+  if (tag.privateuse()) {
+    if (!sb.append('-') || !appendSubtagZ(tag.privateuse())) {
+      return false;
+    }
+  }
+
+  return true;
+}
+
+/**
+ * CanonicalizeTransformExtension
+ *
+ * Canonical form per <https://unicode.org/reports/tr35/#BCP47_T_Extension>:
+ *
+ * - These subtags are all in lowercase (that is the canonical casing for these
+ *   subtags), [...].
+ *
+ * And per
+ * <https://unicode.org/reports/tr35/#Canonical_Unicode_Locale_Identifiers>:
+ *
+ * - All keywords and tfields are sorted by alphabetical order of their keys,
+ *   within their respective extensions.
+ */
+Result<Ok, Locale::CanonicalizationError>
+Locale::canonicalizeTransformExtension(UniqueChars& transformExtension) {
+  const char* const extension = transformExtension.get();
+  MOZ_ASSERT(extension[0] == 't');
+  MOZ_ASSERT(extension[1] == '-');
+  MOZ_ASSERT(IsStructurallyValidExtensionTag(MakeStringSpan(extension)));
+
+  size_t length = strlen(extension);
+
+  Locale tag;
+  LocaleParser::TFieldVector fields;
+
+  using TField = LocaleParser::TFieldVector::ElementType;
+
+  if (LocaleParser::parseTransformExtension(Span(extension, length), tag,
+                                            fields)
+          .isErr()) {
+    MOZ_ASSERT_UNREACHABLE("unexpected invalid transform extension subtag");
+    return Err(CanonicalizationError::InternalError);
+  }
+
+  auto tfieldLess = [extension](const TField& a, const TField& b) {
+    MOZ_ASSERT(a.length() > TransformKeyLength);
+    MOZ_ASSERT(b.length() > TransformKeyLength);
+    const char* astr = a.begin(extension);
+    const char* bstr = b.begin(extension);
+    return std::char_traits<char>::compare(astr, bstr, TransformKeyLength) < 0;
+  };
+
+  // All tfields are sorted by alphabetical order of their keys.
+  if (fields.length() > 1) {
+    std::stable_sort(fields.begin(), fields.end(), tfieldLess);
+  }
+
+  Vector<char, 32> sb;
+  if (!sb.append('t')) {
+    return Err(CanonicalizationError::OutOfMemory);
+  }
+
+  // Append the language subtag if present.
+  //
+  // Replace aliases in tlang per
+  // <https://unicode.org/reports/tr35/#Canonical_Unicode_Locale_Identifiers>.
+  if (tag.language().present()) {
+    if (!sb.append('-')) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+
+    MOZ_TRY(tag.canonicalizeBaseName());
+
+    // The canonical case for Transform extensions is lowercase per
+    // <https://unicode.org/reports/tr35/#BCP47_T_Extension>. Convert the two
+    // subtags which don't use lowercase for their canonical syntax.
+    tag.script_.toLowerCase();
+    tag.region_.toLowerCase();
+
+    if (!LocaleToString(tag, sb)) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+  }
+
+  static constexpr size_t TransformKeyWithSepLength = TransformKeyLength + 1;
+
+  using StringSpan = Span<const char>;
+
+  // Append all fields.
+  //
+  // UTS 35, 3.2.1 specifies:
+  // - Any type or tfield value "true" is removed.
+  //
+  // But the `tvalue` subtag is mandatory in `tfield: tkey tvalue`, so ignore
+  // this apparently invalid part of the UTS 35 specification and simply
+  // append all `tfield` subtags.
+  for (const auto& field : fields) {
+    if (!sb.append('-')) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+
+    StringSpan key(field.begin(extension), TransformKeyLength);
+    StringSpan value(field.begin(extension) + TransformKeyWithSepLength,
+                     field.length() - TransformKeyWithSepLength);
+
+    // Search if there's a replacement for the current transform keyword.
+    if (const char* replacement = replaceTransformExtensionType(key, value)) {
+      if (!sb.append(field.begin(extension), TransformKeyWithSepLength)) {
+        return Err(CanonicalizationError::OutOfMemory);
+      }
+      if (!sb.append(replacement, strlen(replacement))) {
+        return Err(CanonicalizationError::OutOfMemory);
+      }
+    } else {
+      if (!sb.append(field.begin(extension), field.length())) {
+        return Err(CanonicalizationError::OutOfMemory);
+      }
+    }
+  }
+
+  // We can keep the previous extension when canonicalization didn't modify it.
+  if (sb.length() != length ||
+      std::char_traits<char>::compare(sb.begin(), extension, length) != 0) {
+    // Null-terminate the new string and replace the previous extension.
+    if (!sb.append('\0')) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+    UniqueChars canonical(sb.extractOrCopyRawBuffer());
+    if (!canonical) {
+      return Err(CanonicalizationError::OutOfMemory);
+    }
+    transformExtension = std::move(canonical);
+  }
+
+  return Ok();
+}
+
+// Zero-terminated ICU Locale ID.
+using LocaleId =
+    Vector<char, LanguageLength + 1 + ScriptLength + 1 + RegionLength + 1>;
+
+enum class LikelySubtags : bool { Add, Remove };
+
+// Return true iff the locale is already maximized resp. minimized.
+static bool HasLikelySubtags(LikelySubtags likelySubtags, const Locale& tag) {
+  // The locale is already maximized if the language, script, and region
+  // subtags are present and no placeholder subtags ("und", "Zzzz", "ZZ") are
+  // used.
+  if (likelySubtags == LikelySubtags::Add) {
+    return !tag.language().equalTo("und") &&
+           (tag.script().present() && !tag.script().equalTo("Zzzz")) &&
+           (tag.region().present() && !tag.region().equalTo("ZZ"));
+  }
+
+  // The locale is already minimized if it only contains a language
+  // subtag whose value is not the placeholder value "und".
+  return !tag.language().equalTo("und") && tag.script().missing() &&
+         tag.region().missing();
+}
+
+// Create an ICU locale ID from the given locale.
+static bool CreateLocaleForLikelySubtags(const Locale& tag, LocaleId& locale) {
+  MOZ_ASSERT(locale.length() == 0);
+
+  auto appendSubtag = [&locale](const auto& subtag) {
+    auto span = subtag.span();
+    MOZ_ASSERT(!span.empty());
+    return locale.append(span.data(), span.size());
+  };
+
+  // Append the language subtag.
+  if (!appendSubtag(tag.language())) {
+    return false;
+  }
+
+  // Append the script subtag if present.
+  if (tag.script().present()) {
+    if (!locale.append('_') || !appendSubtag(tag.script())) {
+      return false;
+    }
+  }
+
+  // Append the region subtag if present.
+  if (tag.region().present()) {
+    if (!locale.append('_') || !appendSubtag(tag.region())) {
+      return false;
+    }
+  }
+
+  // Zero-terminated for use with ICU.
+  return locale.append('\0');
+}
+
+// Assign the language, script, and region subtags from an ICU locale ID.
+//
+// ICU provides |uloc_getLanguage|, |uloc_getScript|, and |uloc_getCountry| to
+// retrieve these subtags, but unfortunately these functions are rather slow, so
+// we use our own implementation.
+static bool AssignFromLocaleId(LocaleId& localeId, Locale& tag) {
+  MOZ_ASSERT(localeId.back() == '\0',
+             "Locale ID should be zero-terminated for ICU");
+
+  // Replace the ICU locale ID separator.
+  std::replace(localeId.begin(), localeId.end(), '_', '-');
+
+  // ICU replaces "und" with the empty string, which means "und" becomes "" and
+  // "und-Latn" becomes "-Latn". Handle this case separately.
+  if (localeId[0] == '\0' || localeId[0] == '-') {
+    static constexpr char und[] = "und";
+    constexpr size_t length = std::char_traits<char>::length(und);
+
+    // Insert "und" in front of the locale ID.
+    if (!localeId.growBy(length)) {
+      return false;
+    }
+    memmove(localeId.begin() + length, localeId.begin(), localeId.length());
+    memmove(localeId.begin(), und, length);
+  }
+
+  Span<const char> localeSpan(localeId.begin(), localeId.length() - 1);
+
+  // Retrieve the language, script, and region subtags from the locale ID
+  Locale localeTag;
+  if (LocaleParser::tryParseBaseName(localeSpan, localeTag).isErr()) {
+    return false;
+  }
+
+  tag.setLanguage(localeTag.language());
+  tag.setScript(localeTag.script());
+  tag.setRegion(localeTag.region());
+
+  return true;
+}
+
+template <decltype(uloc_addLikelySubtags) likelySubtagsFn>
+static bool CallLikelySubtags(const LocaleId& localeId, LocaleId& result) {
+  // Locale ID must be zero-terminated before passing it to ICU.
+  MOZ_ASSERT(localeId.back() == '\0');
+  MOZ_ASSERT(result.length() == 0);
+
+  // Ensure there's enough room for the result.
+  MOZ_ALWAYS_TRUE(result.resize(LocaleId::InlineLength));
+
+  if (FillBufferWithICUCall(result, [&localeId](char* chars, int32_t size,
+                                                UErrorCode* status) {
+        return likelySubtagsFn(localeId.begin(), chars, size, status);
+      }).isErr()) {
+    return false;
+  }
+
+  // Zero-terminated for use with ICU.
+  return result.append('\0');
+}
+
+// The canonical way to compute the Unicode BCP 47 locale identifier with likely
+// subtags is as follows:
+//
+// 1. Call uloc_forLanguageTag() to transform the locale identifer into an ICU
+//    locale ID.
+// 2. Call uloc_addLikelySubtags() to add the likely subtags to the locale ID.
+// 3. Call uloc_toLanguageTag() to transform the resulting locale ID back into
+//    a Unicode BCP 47 locale identifier.
+//
+// Since uloc_forLanguageTag() and uloc_toLanguageTag() are both kind of slow
+// and we know, by construction, that the input Unicode BCP 47 locale identifier
+// only contains valid language, script, and region subtags, we can avoid both
+// calls if we implement them ourselves, see CreateLocaleForLikelySubtags() and
+// AssignFromLocaleId(). (Where "slow" means about 50% of the execution time of
+// |Intl.Locale.prototype.maximize|.)
+static bool LikelySubtags(LikelySubtags likelySubtags, Locale& tag) {
+  // Return early if the input is already maximized/minimized.
+  if (HasLikelySubtags(likelySubtags, tag)) {
+    return true;
+  }
+
+  // Create the locale ID for the input argument.
+  LocaleId locale;
+  if (!CreateLocaleForLikelySubtags(tag, locale)) {
+    return false;
+  }
+
+  // Either add or remove likely subtags to/from the locale ID.
+  LocaleId localeLikelySubtags;
+  if (likelySubtags == LikelySubtags::Add) {
+    if (!CallLikelySubtags<uloc_addLikelySubtags>(locale,
+                                                  localeLikelySubtags)) {
+      return false;
+    }
+  } else {
+    if (!CallLikelySubtags<uloc_minimizeSubtags>(locale, localeLikelySubtags)) {
+      return false;
+    }
+  }
+
+  // Assign the language, script, and region subtags from the locale ID.
+  if (!AssignFromLocaleId(localeLikelySubtags, tag)) {
+    return false;
+  }
+
+  // Update mappings in case ICU returned a non-canonical locale.
+  return tag.canonicalizeBaseName().isOk();
+}
+
+bool Locale::addLikelySubtags() {
+  return LikelySubtags(LikelySubtags::Add, *this);
+}
+
+bool Locale::removeLikelySubtags() {
+  return LikelySubtags(LikelySubtags::Remove, *this);
+}
+
+UniqueChars Locale::DuplicateStringToUniqueChars(const char* s) {
+  size_t length = strlen(s) + 1;
+  auto duplicate = MakeUnique<char[]>(length);
+  memcpy(duplicate.get(), s, length);
+  return duplicate;
+}
+
+size_t Locale::toStringCapacity() const {
+  // This is a bit awkward, the buffer class currently does not support
+  // being resized, so we need to calculate the required size up front and
+  // reserve it all at once.
+  auto lengthSubtag = [](const auto& subtag) {
+    auto span = subtag.span();
+    MOZ_ASSERT(!span.empty());
+    return span.size();
+  };
+
+  auto lengthSubtagZ = [](const char* subtag) {
+    size_t length = strlen(subtag);
+    MOZ_ASSERT(length > 0);
+    return length;
+  };
+
+  auto lengthSubtagsZ = [&lengthSubtagZ](const auto& subtags) {
+    size_t length = 0;
+    for (const auto& subtag : subtags) {
+      length += lengthSubtagZ(subtag.get()) + 1;
+    }
+    return length;
+  };
+
+  // First calculate required capacity
+  size_t capacity = 0;
+
+  capacity += lengthSubtag(language_);
+
+  if (script_.present()) {
+    capacity += lengthSubtag(script_) + 1;
+  }
+
+  if (region_.present()) {
+    capacity += lengthSubtag(region_) + 1;
+  }
+
+  capacity += lengthSubtagsZ(variants_);
+
+  capacity += lengthSubtagsZ(extensions_);
+
+  if (privateuse_.get()) {
+    capacity += lengthSubtagZ(privateuse_.get()) + 1;
+  }
+
+  return capacity;
+}
+
+size_t Locale::toStringAppend(char* buffer) const {
+  // Current write position inside buffer.
+  size_t offset = 0;
+
+  auto appendHyphen = [&offset, &buffer]() {
+    buffer[offset] = '-';
+    offset += 1;
+  };
+
+  auto appendSubtag = [&offset, &buffer](const auto& subtag) {
+    auto span = subtag.span();
+    memcpy(buffer + offset, span.data(), span.size());
+    offset += span.size();
+  };
+
+  auto appendSubtagZ = [&offset, &buffer](const char* subtag) {
+    size_t length = strlen(subtag);
+    memcpy(buffer + offset, subtag, length);
+    offset += length;
+  };
+
+  auto appendSubtagsZ = [&appendHyphen, &appendSubtagZ](const auto& subtags) {
+    for (const auto& subtag : subtags) {
+      appendHyphen();
+      appendSubtagZ(subtag.get());
+    }
+  };
+
+  // Append the language subtag.
+  appendSubtag(language_);
+
+  // Append the script subtag if present.
+  if (script_.present()) {
+    appendHyphen();
+    appendSubtag(script_);
+  }
+
+  // Append the region subtag if present.
+  if (region_.present()) {
+    appendHyphen();
+    appendSubtag(region_);
+  }
+
+  // Append the variant subtags if present.
+  appendSubtagsZ(variants_);
+
+  // Append the extensions subtags if present.
+  appendSubtagsZ(extensions_);
+
+  // Append the private-use subtag if present.
+  if (privateuse_.get()) {
+    appendHyphen();
+    appendSubtagZ(privateuse_.get());
+  }
+
+  return offset;
+}
+
+LocaleParser::Token LocaleParser::nextToken() {
+  MOZ_ASSERT(index_ <= length_ + 1, "called after 'None' token was read");
+
+  TokenKind kind = TokenKind::None;
+  size_t tokenLength = 0;
+  for (size_t i = index_; i < length_; i++) {
+    // UTS 35, section 3.1.
+    // alpha = [A-Z a-z] ;
+    // digit = [0-9] ;
+    char c = charAt(i);
+    if (IsAsciiAlpha(c)) {
+      kind |= TokenKind::Alpha;
+    } else if (IsAsciiDigit(c)) {
+      kind |= TokenKind::Digit;
+    } else if (c == '-' && i > index_ && i + 1 < length_) {
+      break;
+    } else {
+      return {TokenKind::Error, 0, 0};
+    }
+    tokenLength += 1;
+  }
+
+  Token token{kind, index_, tokenLength};
+  index_ += tokenLength + 1;
+  return token;
+}
+
+UniqueChars LocaleParser::chars(size_t index, size_t length) const {
+  // Add +1 to null-terminate the string.
+  auto chars = MakeUnique<char[]>(length + 1);
+  char* dest = chars.get();
+  std::copy_n(locale_ + index, length, dest);
+  dest[length] = '\0';
+  return chars;
+}
+
+// Parse the `unicode_language_id` production.
+//
+// unicode_language_id = unicode_language_subtag
+//                       (sep unicode_script_subtag)?
+//                       (sep unicode_region_subtag)?
+//                       (sep unicode_variant_subtag)* ;
+//
+// sep                 = "-"
+//
+// Note: Unicode CLDR locale identifier backward compatibility extensions
+//       removed from `unicode_language_id`.
+//
+// |tok| is the current token from |ts|.
+//
+// All subtags will be added unaltered to |tag|, without canonicalizing their
+// case or, in the case of variant subtags, detecting and rejecting duplicate
+// variants. Users must subsequently |canonicalizeBaseName| to perform these
+// actions.
+//
+// Do not use this function directly: use |parseBaseName| or
+// |parseTlangFromTransformExtension| instead.
+Result<Ok, LocaleParser::ParserError> LocaleParser::internalParseBaseName(
+    LocaleParser& ts, Locale& tag, Token& tok) {
+  if (ts.isLanguage(tok)) {
+    ts.copyChars(tok, tag.language_);
+
+    tok = ts.nextToken();
+  } else {
+    // The language subtag is mandatory.
+    return Err(ParserError::NotParseable);
+  }
+
+  if (ts.isScript(tok)) {
+    ts.copyChars(tok, tag.script_);
+
+    tok = ts.nextToken();
+  }
+
+  if (ts.isRegion(tok)) {
+    ts.copyChars(tok, tag.region_);
+
+    tok = ts.nextToken();
+  }
+
+  auto& variants = tag.variants_;
+  MOZ_ASSERT(variants.length() == 0);
+  while (ts.isVariant(tok)) {
+    auto variant = ts.chars(tok);
+    if (!variants.append(std::move(variant))) {
+      return Err(ParserError::OutOfMemory);
+    }
+
+    tok = ts.nextToken();
+  }
+
+  return Ok();
+}
+
+Result<Ok, LocaleParser::ParserError> LocaleParser::tryParse(
+    mozilla::Span<const char> locale, Locale& tag) {
+  // unicode_locale_id = unicode_language_id
+  //                     extensions*
+  //                     pu_extensions? ;
+
+  LocaleParser ts(locale);
+  Token tok = ts.nextToken();
+
+  MOZ_TRY(parseBaseName(ts, tag, tok));
+
+  // extensions = unicode_locale_extensions
+  //            | transformed_extensions
+  //            | other_extensions ;
+
+  // Bit set of seen singletons.
+  uint64_t seenSingletons = 0;
+
+  auto& extensions = tag.extensions_;
+  while (ts.isExtensionStart(tok)) {
+    char singleton = ts.singletonKey(tok);
+
+    // Reject the input if a duplicate singleton was found.
+    uint64_t hash = 1ULL << (AsciiAlphanumericToNumber(singleton) + 1);
+    if (seenSingletons & hash) {
+      return Err(ParserError::NotParseable);
+    }
+    seenSingletons |= hash;
+
+    Token start = tok;
+    tok = ts.nextToken();
+
+    // We'll check for missing non-singleton subtags after this block by
+    // comparing |startValue| with the then-current position.
+    size_t startValue = tok.index();
+
+    if (singleton == 'u') {
+      while (ts.isUnicodeExtensionPart(tok)) {
+        tok = ts.nextToken();
+      }
+    } else if (singleton == 't') {
+      // transformed_extensions = sep [tT]
+      //                          ((sep tlang (sep tfield)*)
+      //                           | (sep tfield)+) ;
+
+      // tlang = unicode_language_subtag
+      //         (sep unicode_script_subtag)?
+      //         (sep unicode_region_subtag)?
+      //         (sep unicode_variant_subtag)* ;
+      if (ts.isLanguage(tok)) {
+        tok = ts.nextToken();
+
+        if (ts.isScript(tok)) {
+          tok = ts.nextToken();
+        }
+
+        if (ts.isRegion(tok)) {
+          tok = ts.nextToken();
+        }
+
+        while (ts.isVariant(tok)) {
+          tok = ts.nextToken();
+        }
+      }
+
+      // tfield = tkey tvalue;
+      while (ts.isTransformExtensionKey(tok)) {
+        tok = ts.nextToken();
+
+        size_t startTValue = tok.index();
+        while (ts.isTransformExtensionPart(tok)) {
+          tok = ts.nextToken();
+        }
+
+        // `tfield` requires at least one `tvalue`.
+        if (tok.index() <= startTValue) {
+          return Err(ParserError::NotParseable);
+        }
+      }
+    } else {
+      while (ts.isOtherExtensionPart(tok)) {
+        tok = ts.nextToken();
+      }
+    }
+
+    // Singletons must be followed by a non-singleton subtag, "en-a-b" is not
+    // allowed.
+    if (tok.index() <= startValue) {
+      return Err(ParserError::NotParseable);
+    }
+
+    UniqueChars extension = ts.extension(start, tok);
+    if (!extensions.append(std::move(extension))) {
+      return Err(ParserError::OutOfMemory);
+    }
+  }
+
+  // Trailing `pu_extension` component of the `unicode_locale_id` production.
+  if (ts.isPrivateUseStart(tok)) {
+    Token start = tok;
+    tok = ts.nextToken();
+
+    size_t startValue = tok.index();
+    while (ts.isPrivateUsePart(tok)) {
+      tok = ts.nextToken();
+    }
+
+    // There must be at least one subtag after the "-x-".
+    if (tok.index() <= startValue) {
+      return Err(ParserError::NotParseable);
+    }
+
+    UniqueChars privateUse = ts.extension(start, tok);
+    tag.privateuse_ = std::move(privateUse);
+  }
+
+  if (!tok.isNone()) {
+    return Err(ParserError::NotParseable);
+  }
+
+  return Ok();
+}
+
+Result<Ok, LocaleParser::ParserError> LocaleParser::tryParseBaseName(
+    Span<const char> locale, Locale& tag) {
+  LocaleParser ts(locale);
+  Token tok = ts.nextToken();
+
+  MOZ_TRY(parseBaseName(ts, tag, tok));
+  if (!tok.isNone()) {
+    return Err(ParserError::NotParseable);
+  }
+
+  return Ok();
+}
+
+// Parse |extension|, which must be a valid `transformed_extensions` subtag, and
+// fill |tag| and |fields| from the `tlang` and `tfield` components.
+Result<Ok, LocaleParser::ParserError> LocaleParser::parseTransformExtension(
+    Span<const char> extension, Locale& tag, TFieldVector& fields) {
+  LocaleParser ts(extension);
+  Token tok = ts.nextToken();
+
+  if (!ts.isExtensionStart(tok) || ts.singletonKey(tok) != 't') {
+    return Err(ParserError::NotParseable);
+  }
+
+  tok = ts.nextToken();
+
+  if (tok.isNone()) {
+    return Err(ParserError::NotParseable);
+  }
+
+  if (ts.isLanguage(tok)) {
+    // We're parsing a possible `tlang` in a known-valid transform extension, so
+    // use the special-purpose function that takes advantage of this to compute
+    // lowercased |tag| contents in an optimal manner.
+    MOZ_TRY(parseTlangInTransformExtension(ts, tag, tok));
+
+    // After `tlang` we must have a `tfield` and its `tkey`, or we're at the end
+    // of the transform extension.
+    MOZ_ASSERT(ts.isTransformExtensionKey(tok) || tok.isNone());
+  } else {
+    // If there's no `tlang` subtag, at least one `tfield` must be present.
+    MOZ_ASSERT(ts.isTransformExtensionKey(tok));
+  }
+
+  // Trailing `tfield` subtags. (Any other trailing subtags are an error,
+  // because we're guaranteed to only see a valid tranform extension here.)
+  while (ts.isTransformExtensionKey(tok)) {
+    size_t begin = tok.index();
+    tok = ts.nextToken();
+
+    size_t startTValue = tok.index();
+    while (ts.isTransformExtensionPart(tok)) {
+      tok = ts.nextToken();
+    }
+
+    // `tfield` requires at least one `tvalue`.
+    if (tok.index() <= startTValue) {
+      return Err(ParserError::NotParseable);
+    }
+
+    size_t length = tok.index() - 1 - begin;
+    if (!fields.emplaceBack(begin, length)) {
+      return Err(ParserError::OutOfMemory);
+    }
+  }
+
+  if (!tok.isNone()) {
+    return Err(ParserError::NotParseable);
+  }
+
+  return Ok();
+}
+
+// Parse |extension|, which must be a valid `unicode_locale_extensions` subtag,
+// and fill |attributes| and |keywords| from the `attribute` and `keyword`
+// components.
+Result<Ok, LocaleParser::ParserError> LocaleParser::parseUnicodeExtension(
+    Span<const char> extension, AttributesVector& attributes,
+    KeywordsVector& keywords) {
+  LocaleParser ts(extension);
+  Token tok = ts.nextToken();
+
+  // unicode_locale_extensions = sep [uU] ((sep keyword)+ |
+  //                                       (sep attribute)+ (sep keyword)*) ;
+
+  if (!ts.isExtensionStart(tok) || ts.singletonKey(tok) != 'u') {
+    return Err(ParserError::NotParseable);
+  }
+
+  tok = ts.nextToken();
+
+  if (tok.isNone()) {
+    return Err(ParserError::NotParseable);
+  }
+
+  while (ts.isUnicodeExtensionAttribute(tok)) {
+    if (!attributes.emplaceBack(tok.index(), tok.length())) {
+      return Err(ParserError::OutOfMemory);
+    }
+
+    tok = ts.nextToken();
+  }
+
+  // keyword = key (sep type)? ;
+  while (ts.isUnicodeExtensionKey(tok)) {
+    size_t begin = tok.index();
+    tok = ts.nextToken();
+
+    while (ts.isUnicodeExtensionType(tok)) {
+      tok = ts.nextToken();
+    }
+
+    if (tok.isError()) {
+      return Err(ParserError::NotParseable);
+    }
+
+    size_t length = tok.index() - 1 - begin;
+    if (!keywords.emplaceBack(begin, length)) {
+      return Err(ParserError::OutOfMemory);
+    }
+  }
+
+  if (!tok.isNone()) {
+    return Err(ParserError::NotParseable);
+  }
+
+  return Ok();
+}
+
+Result<Ok, LocaleParser::ParserError> LocaleParser::canParseUnicodeExtension(
+    Span<const char> extension) {
+  LocaleParser ts(extension);
+  Token tok = ts.nextToken();
+
+  // unicode_locale_extensions = sep [uU] ((sep keyword)+ |
+  //                                       (sep attribute)+ (sep keyword)*) ;
+
+  if (!ts.isExtensionStart(tok) || ts.singletonKey(tok) != 'u') {
+    return Err(ParserError::NotParseable);
+  }
+
+  tok = ts.nextToken();
+
+  if (tok.isNone()) {
+    return Err(ParserError::NotParseable);
+  }
+
+  while (ts.isUnicodeExtensionAttribute(tok)) {
+    tok = ts.nextToken();
+  }
+
+  // keyword = key (sep type)? ;
+  while (ts.isUnicodeExtensionKey(tok)) {
+    tok = ts.nextToken();
+
+    while (ts.isUnicodeExtensionType(tok)) {
+      tok = ts.nextToken();
+    }
+
+    if (tok.isError()) {
+      return Err(ParserError::NotParseable);
+    }
+  }
+
+  if (!tok.isNone()) {
+    return Err(ParserError::OutOfMemory);
+  }
+
+  return Ok();
+}
+
+Result<Ok, LocaleParser::ParserError>
+LocaleParser::canParseUnicodeExtensionType(Span<const char> unicodeType) {
+  MOZ_ASSERT(!unicodeType.empty(), "caller must exclude empty strings");
+
+  LocaleParser ts(unicodeType);
+  Token tok = ts.nextToken();
+
+  while (ts.isUnicodeExtensionType(tok)) {
+    tok = ts.nextToken();
+  }
+
+  if (!tok.isNone()) {
+    return Err(ParserError::NotParseable);
+  }
+
+  return Ok();
+}
+
+}  // namespace mozilla::intl
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/components/src/LocaleGenerated.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/components/src/LocaleGenerated.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/components/src/LocaleGenerated.cpp	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/components/src/LocaleGenerated.cpp	2021-10-20 19:28:21.000000000 +0000
@@ -0,0 +1,1111 @@
+// Generated by make_intl_data.py. DO NOT EDIT.
+// Version: CLDR-39
+// URL: https://unicode.org/Public/cldr/39/core.zip
+
+#include "mozilla/Assertions.h"
+#include "mozilla/Span.h"
+#include "mozilla/TextUtils.h"
+
+#include <algorithm>
+#include <cstdint>
+#include <cstring>
+#include <iterator>
+#include <string>
+#include <type_traits>
+
+#include "mozilla/intl/Locale.h"
+
+using namespace mozilla::intl::LanguageTagLimits;
+
+template <size_t Length, size_t TagLength, size_t SubtagLength>
+static inline bool HasReplacement(
+    const char (&subtags)[Length][TagLength],
+    const mozilla::intl::LanguageTagSubtag<SubtagLength>& subtag) {
+  MOZ_ASSERT(subtag.length() == TagLength - 1,
+             "subtag must have the same length as the list of subtags");
+
+  const char* ptr = subtag.span().data();
+  return std::binary_search(std::begin(subtags), std::end(subtags), ptr,
+                            [](const char* a, const char* b) {
+                              return memcmp(a, b, TagLength - 1) < 0;
+                            });
+}
+
+template <size_t Length, size_t TagLength, size_t SubtagLength>
+static inline const char* SearchReplacement(
+    const char (&subtags)[Length][TagLength], const char* (&aliases)[Length],
+    const mozilla::intl::LanguageTagSubtag<SubtagLength>& subtag) {
+  MOZ_ASSERT(subtag.length() == TagLength - 1,
+             "subtag must have the same length as the list of subtags");
+
+  const char* ptr = subtag.span().data();
+  auto p = std::lower_bound(std::begin(subtags), std::end(subtags), ptr,
+                            [](const char* a, const char* b) {
+                              return memcmp(a, b, TagLength - 1) < 0;
+                            });
+  if (p != std::end(subtags) && memcmp(*p, ptr, TagLength - 1) == 0) {
+    return aliases[std::distance(std::begin(subtags), p)];
+  }
+  return nullptr;
+}
+
+#ifdef DEBUG
+static bool IsAsciiLowercaseAlphanumeric(char c) {
+  return mozilla::IsAsciiLowercaseAlpha(c) || mozilla::IsAsciiDigit(c);
+}
+
+static bool IsAsciiLowercaseAlphanumericOrDash(char c) {
+  return IsAsciiLowercaseAlphanumeric(c) || c == '-';
+}
+
+static bool IsCanonicallyCasedLanguageTag(mozilla::Span<const char> span) {
+  return std::all_of(span.begin(), span.end(),
+                     mozilla::IsAsciiLowercaseAlpha<char>);
+}
+
+static bool IsCanonicallyCasedScriptTag(mozilla::Span<const char> span) {
+  return mozilla::IsAsciiUppercaseAlpha(span[0]) &&
+         std::all_of(span.begin() + 1, span.end(),
+                     mozilla::IsAsciiLowercaseAlpha<char>);
+}
+
+static bool IsCanonicallyCasedRegionTag(mozilla::Span<const char> span) {
+  return std::all_of(span.begin(), span.end(),
+                     mozilla::IsAsciiUppercaseAlpha<char>) ||
+         std::all_of(span.begin(), span.end(), mozilla::IsAsciiDigit<char>);
+}
+
+static bool IsCanonicallyCasedVariantTag(mozilla::Span<const char> span) {
+  return std::all_of(span.begin(), span.end(), IsAsciiLowercaseAlphanumeric);
+}
+
+static bool IsCanonicallyCasedUnicodeKey(mozilla::Span<const char> key) {
+  return std::all_of(key.begin(), key.end(), IsAsciiLowercaseAlphanumeric);
+}
+
+static bool IsCanonicallyCasedUnicodeType(mozilla::Span<const char> type) {
+  return std::all_of(type.begin(), type.end(),
+                     IsAsciiLowercaseAlphanumericOrDash);
+}
+
+static bool IsCanonicallyCasedTransformKey(mozilla::Span<const char> key) {
+  return std::all_of(key.begin(), key.end(), IsAsciiLowercaseAlphanumeric);
+}
+
+static bool IsCanonicallyCasedTransformType(mozilla::Span<const char> type) {
+  return std::all_of(type.begin(), type.end(),
+                     IsAsciiLowercaseAlphanumericOrDash);
+}
+#endif
+
+// Mappings from language subtags to preferred values.
+// Derived from CLDR Supplemental Data, version 39.
+// https://unicode.org/Public/cldr/39/core.zip
+bool mozilla::intl::Locale::languageMapping(LanguageSubtag& language) {
+  MOZ_ASSERT(IsStructurallyValidLanguageTag(language.span()));
+  MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language.span()));
+
+  if (language.length() == 2) {
+    static const char languages[8][3] = {
+      "bh", "in", "iw", "ji", "jw", "mo", "tl", "tw",
+    };
+    static const char* aliases[8] = {
+      "bho", "id", "he", "yi", "jv", "ro", "fil", "ak",
+    };
+
+    if (const char* replacement = SearchReplacement(languages, aliases, language)) {
+      language.set(mozilla::MakeStringSpan(replacement));
+      return true;
+    }
+    return false;
+  }
+
+  if (language.length() == 3) {
+    static const char languages[401][4] = {
+      "aam", "aar", "abk", "adp", "afr", "agp", "ais", "aju", "aka", "alb",
+      "als", "amh", "ara", "arb", "arg", "arm", "asd", "asm", "aue", "ava",
+      "ave", "aym", "ayr", "ayx", "aze", "azj", "bak", "bam", "baq", "baz",
+      "bcc", "bcl", "bel", "ben", "bgm", "bhk", "bih", "bis", "bjd", "bjq",
+      "bkb", "bod", "bos", "bre", "btb", "bul", "bur", "bxk", "bxr", "cat",
+      "ccq", "ces", "cha", "che", "chi", "chu", "chv", "cjr", "cka", "cld",
+      "cmk", "cmn", "cor", "cos", "coy", "cqu", "cre", "cwd", "cym", "cze",
+      "daf", "dan", "dap", "deu", "dgo", "dhd", "dik", "diq", "dit", "div",
+      "djl", "dkl", "drh", "drr", "dud", "duj", "dut", "dwl", "dzo", "ekk",
+      "ell", "elp", "emk", "eng", "epo", "esk", "est", "eus", "ewe", "fao",
+      "fas", "fat", "fij", "fin", "fra", "fre", "fry", "fuc", "ful", "gav",
+      "gaz", "gbc", "gbo", "geo", "ger", "gfx", "ggn", "ggo", "ggr", "gio",
+      "gla", "gle", "glg", "gli", "glv", "gno", "gre", "grn", "gti", "gug",
+      "guj", "guv", "gya", "hat", "hau", "hdn", "hea", "heb", "her", "him",
+      "hin", "hmo", "hrr", "hrv", "hun", "hye", "ibi", "ibo", "ice", "ido",
+      "iii", "ike", "iku", "ile", "ill", "ilw", "ina", "ind", "ipk", "isl",
+      "ita", "izi", "jar", "jav", "jeg", "jpn", "kal", "kan", "kas", "kat",
+      "kau", "kaz", "kdv", "kgc", "kgd", "kgh", "khk", "khm", "kik", "kin",
+      "kir", "kmr", "knc", "kng", "knn", "koj", "kom", "kon", "kor", "kpp",
+      "kpv", "krm", "ktr", "kua", "kur", "kvs", "kwq", "kxe", "kxl", "kzh",
+      "kzj", "kzt", "lao", "lat", "lav", "lbk", "leg", "lii", "lim", "lin",
+      "lit", "llo", "lmm", "ltz", "lub", "lug", "lvs", "mac", "mah", "mal",
+      "mao", "mar", "may", "meg", "mgx", "mhr", "mkd", "mlg", "mlt", "mnk",
+      "mnt", "mof", "mol", "mon", "mri", "msa", "mst", "mup", "mwd", "mwj",
+      "mya", "myd", "myt", "nad", "nau", "nav", "nbf", "nbl", "nbx", "ncp",
+      "nde", "ndo", "nep", "nld", "nln", "nlr", "nno", "nns", "nnx", "nob",
+      "noo", "nor", "npi", "nts", "nxu", "nya", "oci", "ojg", "oji", "ori",
+      "orm", "ory", "oss", "oun", "pan", "pbu", "pcr", "per", "pes", "pli",
+      "plt", "pmc", "pmu", "pnb", "pol", "por", "ppa", "ppr", "pry", "pus",
+      "puz", "que", "quz", "rmr", "rmy", "roh", "ron", "rum", "run", "rus",
+      "sag", "san", "sap", "sca", "scc", "scr", "sgl", "sin", "skk", "slk",
+      "slo", "slv", "sme", "smo", "sna", "snd", "som", "sot", "spa", "spy",
+      "sqi", "src", "srd", "srp", "ssw", "sul", "sum", "sun", "swa", "swe",
+      "swh", "tah", "tam", "tat", "tdu", "tel", "tgg", "tgk", "tgl", "tha",
+      "thc", "thw", "thx", "tib", "tid", "tie", "tir", "tkk", "tlw", "tmp",
+      "tne", "ton", "tsf", "tsn", "tso", "ttq", "tuk", "tur", "twi", "uig",
+      "ukr", "umu", "unp", "uok", "urd", "uzb", "uzn", "ven", "vie", "vol",
+      "wel", "wgw", "wit", "wiw", "wln", "wol", "xba", "xho", "xia", "xkh",
+      "xpe", "xrq", "xsj", "xsl", "ybd", "ydd", "yen", "yid", "yiy", "yma",
+      "ymt", "yor", "yos", "yuu", "zai", "zha", "zho", "zir", "zsm", "zul",
+      "zyb",
+    };
+    static const char* aliases[401] = {
+      "aas",  "aa",  "ab",  "dz",  "af", "apf", "ami", "jrb",  "ak",  "sq",
+       "sq",  "am",  "ar",  "ar",  "an",  "hy", "snz",  "as", "ktz",  "av",
+       "ae",  "ay",  "ay", "nun",  "az",  "az",  "ba",  "bm",  "eu", "nvo",
+      "bal", "bik",  "be",  "bn", "bcg", "fbl", "bho",  "bi", "drl", "bzc",
+      "ebk",  "bo",  "bs",  "br", "beb",  "bg",  "my", "luy", "bua",  "ca",
+      "rki",  "cs",  "ch",  "ce",  "zh",  "cu",  "cv", "mom", "cmr", "syr",
+      "xch",  "zh",  "kw",  "co", "pij", "quh",  "cr",  "cr",  "cy",  "cs",
+      "dnj",  "da", "njz",  "de", "doi", "mwr", "din", "zza", "dif",  "dv",
+      "dze", "aqd",  "mn", "kzk", "uth", "dwu",  "nl", "dbt",  "dz",  "et",
+       "el", "amq", "man",  "en",  "eo",  "ik",  "et",  "eu",  "ee",  "fo",
+       "fa",  "ak",  "fj",  "fi",  "fr",  "fr",  "fy",  "ff",  "ff", "dev",
+       "om", "wny", "grb",  "ka",  "de", "vaj", "gvr", "esg", "gtu", "aou",
+       "gd",  "ga",  "gl", "kzk",  "gv", "gon",  "el",  "gn", "nyc",  "gn",
+       "gu", "duz", "gba",  "ht",  "ha", "hai", "hmn",  "he",  "hz", "srx",
+       "hi",  "ho", "jal",  "hr",  "hu",  "hy", "opa",  "ig",  "is",  "io",
+       "ii",  "iu",  "iu",  "ie", "ilm", "gal",  "ia",  "id",  "ik",  "is",
+       "it", "eza", "jgk",  "jv", "oyb",  "ja",  "kl",  "kn",  "ks",  "ka",
+       "kr",  "kk", "zkd", "tdf", "ncq", "kml",  "mn",  "km",  "ki",  "rw",
+       "ky",  "ku",  "kr",  "kg", "kok", "kwv",  "kv",  "kg",  "ko", "jkm",
+       "kv", "bmf", "dtp",  "kj",  "ku", "gdj", "yam", "tvd", "kru", "dgl",
+      "dtp", "dtp",  "lo",  "la",  "lv", "bnc", "enl", "raq",  "li",  "ln",
+       "lt", "ngt", "rmx",  "lb",  "lu",  "lg",  "lv",  "mk",  "mh",  "ml",
+       "mi",  "mr",  "ms", "cir", "jbk", "chm",  "mk",  "mg",  "mt", "man",
+      "wnn", "xnt",  "ro",  "mn",  "mi",  "ms", "mry", "raj", "dmw", "vaj",
+       "my", "aog", "mry", "xny",  "na",  "nv", "nru",  "nr", "ekc", "kdz",
+       "nd",  "ng",  "ne",  "nl", "azd", "nrk",  "nn", "nbr", "ngv",  "nb",
+      "dtd",  "no",  "ne", "pij", "bpp",  "ny",  "oc",  "oj",  "oj",  "or",
+       "om",  "or",  "os", "vaj",  "pa",  "ps", "adx",  "fa",  "fa",  "pi",
+       "mg", "huw", "phr", "lah",  "pl",  "pt", "bfy", "lcq", "prt",  "ps",
+      "pub",  "qu",  "qu", "emx", "rom",  "rm",  "ro",  "ro",  "rn",  "ru",
+       "sg",  "sa", "aqt", "hle",  "sr",  "hr", "isk",  "si", "oyb",  "sk",
+       "sk",  "sl",  "se",  "sm",  "sn",  "sd",  "so",  "st",  "es", "kln",
+       "sq",  "sc",  "sc",  "sr",  "ss", "sgd", "ulw",  "su",  "sw",  "sv",
+       "sw",  "ty",  "ta",  "tt", "dtp",  "te", "bjp",  "tg", "fil",  "th",
+      "tpo", "ola", "oyb",  "bo", "itd", "ras",  "ti", "twm", "weo", "tyj",
+      "kak",  "to", "taj",  "tn",  "ts", "tmh",  "tk",  "tr",  "ak",  "ug",
+       "uk", "del", "wro", "ema",  "ur",  "uz",  "uz",  "ve",  "vi",  "vo",
+       "cy", "wgb", "nol", "nwo",  "wa",  "wo", "cax",  "xh", "acn", "waw",
+      "kpe", "dmw", "suj", "den", "rki",  "yi", "ynq",  "yi", "yrm", "lrr",
+      "mtm",  "yo", "zom", "yug", "zap",  "za",  "zh", "scv",  "ms",  "zu",
+       "za",
+    };
+
+    if (const char* replacement = SearchReplacement(languages, aliases, language)) {
+      language.set(mozilla::MakeStringSpan(replacement));
+      return true;
+    }
+    return false;
+  }
+
+  return false;
+}
+
+// Language subtags with complex mappings.
+// Derived from CLDR Supplemental Data, version 39.
+// https://unicode.org/Public/cldr/39/core.zip
+bool mozilla::intl::Locale::complexLanguageMapping(const LanguageSubtag& language) {
+  MOZ_ASSERT(IsStructurallyValidLanguageTag(language.span()));
+  MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language.span()));
+
+  if (language.length() == 2) {
+    return language.equalTo("sh");
+  }
+
+  if (language.length() == 3) {
+    static const char languages[6][4] = {
+      "cnr", "drw", "hbs", "prs", "swc", "tnf",
+    };
+
+    return HasReplacement(languages, language);
+  }
+
+  return false;
+}
+
+// Mappings from script subtags to preferred values.
+// Derived from CLDR Supplemental Data, version 39.
+// https://unicode.org/Public/cldr/39/core.zip
+bool mozilla::intl::Locale::scriptMapping(ScriptSubtag& script) {
+  MOZ_ASSERT(IsStructurallyValidScriptTag(script.span()));
+  MOZ_ASSERT(IsCanonicallyCasedScriptTag(script.span()));
+
+  {
+    if (script.equalTo("Qaai")) {
+      script.set(mozilla::MakeStringSpan("Zinh"));
+      return true;
+    }
+    return false;
+  }
+}
+
+// Mappings from region subtags to preferred values.
+// Derived from CLDR Supplemental Data, version 39.
+// https://unicode.org/Public/cldr/39/core.zip
+bool mozilla::intl::Locale::regionMapping(RegionSubtag& region) {
+  MOZ_ASSERT(IsStructurallyValidRegionTag(region.span()));
+  MOZ_ASSERT(IsCanonicallyCasedRegionTag(region.span()));
+
+  if (region.length() == 2) {
+    static const char regions[23][3] = {
+      "BU", "CS", "CT", "DD", "DY", "FQ", "FX", "HV", "JT", "MI",
+      "NH", "NQ", "PU", "PZ", "QU", "RH", "TP", "UK", "VD", "WK",
+      "YD", "YU", "ZR",
+    };
+    static const char* aliases[23] = {
+      "MM", "RS", "KI", "DE", "BJ", "AQ", "FR", "BF", "UM", "UM",
+      "VU", "AQ", "UM", "PA", "EU", "ZW", "TL", "GB", "VN", "UM",
+      "YE", "RS", "CD",
+    };
+
+    if (const char* replacement = SearchReplacement(regions, aliases, region)) {
+      region.set(mozilla::MakeStringSpan(replacement));
+      return true;
+    }
+    return false;
+  }
+
+  {
+    static const char regions[300][4] = {
+      "004", "008", "010", "012", "016", "020", "024", "028", "031", "032",
+      "036", "040", "044", "048", "050", "051", "052", "056", "060", "062",
+      "064", "068", "070", "072", "074", "076", "084", "086", "090", "092",
+      "096", "100", "104", "108", "112", "116", "120", "124", "132", "136",
+      "140", "144", "148", "152", "156", "158", "162", "166", "170", "174",
+      "175", "178", "180", "184", "188", "191", "192", "196", "203", "204",
+      "208", "212", "214", "218", "222", "226", "230", "231", "232", "233",
+      "234", "238", "239", "242", "246", "248", "249", "250", "254", "258",
+      "260", "262", "266", "268", "270", "275", "276", "278", "280", "288",
+      "292", "296", "300", "304", "308", "312", "316", "320", "324", "328",
+      "332", "334", "336", "340", "344", "348", "352", "356", "360", "364",
+      "368", "372", "376", "380", "384", "388", "392", "398", "400", "404",
+      "408", "410", "414", "417", "418", "422", "426", "428", "430", "434",
+      "438", "440", "442", "446", "450", "454", "458", "462", "466", "470",
+      "474", "478", "480", "484", "492", "496", "498", "499", "500", "504",
+      "508", "512", "516", "520", "524", "528", "531", "533", "534", "535",
+      "540", "548", "554", "558", "562", "566", "570", "574", "578", "580",
+      "581", "583", "584", "585", "586", "591", "598", "600", "604", "608",
+      "612", "616", "620", "624", "626", "630", "634", "638", "642", "643",
+      "646", "652", "654", "659", "660", "662", "663", "666", "670", "674",
+      "678", "682", "686", "688", "690", "694", "702", "703", "704", "705",
+      "706", "710", "716", "720", "724", "728", "729", "732", "736", "740",
+      "744", "748", "752", "756", "760", "762", "764", "768", "772", "776",
+      "780", "784", "788", "792", "795", "796", "798", "800", "804", "807",
+      "818", "826", "830", "831", "832", "833", "834", "840", "850", "854",
+      "858", "860", "862", "876", "882", "886", "887", "891", "894", "958",
+      "959", "960", "962", "963", "964", "965", "966", "967", "968", "969",
+      "970", "971", "972", "973", "974", "975", "976", "977", "978", "979",
+      "980", "981", "982", "983", "984", "985", "986", "987", "988", "989",
+      "990", "991", "992", "993", "994", "995", "996", "997", "998", "999",
+    };
+    static const char* aliases[300] = {
+       "AF",  "AL",  "AQ",  "DZ",  "AS",  "AD",  "AO",  "AG",  "AZ",  "AR",
+       "AU",  "AT",  "BS",  "BH",  "BD",  "AM",  "BB",  "BE",  "BM", "034",
+       "BT",  "BO",  "BA",  "BW",  "BV",  "BR",  "BZ",  "IO",  "SB",  "VG",
+       "BN",  "BG",  "MM",  "BI",  "BY",  "KH",  "CM",  "CA",  "CV",  "KY",
+       "CF",  "LK",  "TD",  "CL",  "CN",  "TW",  "CX",  "CC",  "CO",  "KM",
+       "YT",  "CG",  "CD",  "CK",  "CR",  "HR",  "CU",  "CY",  "CZ",  "BJ",
+       "DK",  "DM",  "DO",  "EC",  "SV",  "GQ",  "ET",  "ET",  "ER",  "EE",
+       "FO",  "FK",  "GS",  "FJ",  "FI",  "AX",  "FR",  "FR",  "GF",  "PF",
+       "TF",  "DJ",  "GA",  "GE",  "GM",  "PS",  "DE",  "DE",  "DE",  "GH",
+       "GI",  "KI",  "GR",  "GL",  "GD",  "GP",  "GU",  "GT",  "GN",  "GY",
+       "HT",  "HM",  "VA",  "HN",  "HK",  "HU",  "IS",  "IN",  "ID",  "IR",
+       "IQ",  "IE",  "IL",  "IT",  "CI",  "JM",  "JP",  "KZ",  "JO",  "KE",
+       "KP",  "KR",  "KW",  "KG",  "LA",  "LB",  "LS",  "LV",  "LR",  "LY",
+       "LI",  "LT",  "LU",  "MO",  "MG",  "MW",  "MY",  "MV",  "ML",  "MT",
+       "MQ",  "MR",  "MU",  "MX",  "MC",  "MN",  "MD",  "ME",  "MS",  "MA",
+       "MZ",  "OM",  "NA",  "NR",  "NP",  "NL",  "CW",  "AW",  "SX",  "BQ",
+       "NC",  "VU",  "NZ",  "NI",  "NE",  "NG",  "NU",  "NF",  "NO",  "MP",
+       "UM",  "FM",  "MH",  "PW",  "PK",  "PA",  "PG",  "PY",  "PE",  "PH",
+       "PN",  "PL",  "PT",  "GW",  "TL",  "PR",  "QA",  "RE",  "RO",  "RU",
+       "RW",  "BL",  "SH",  "KN",  "AI",  "LC",  "MF",  "PM",  "VC",  "SM",
+       "ST",  "SA",  "SN",  "RS",  "SC",  "SL",  "SG",  "SK",  "VN",  "SI",
+       "SO",  "ZA",  "ZW",  "YE",  "ES",  "SS",  "SD",  "EH",  "SD",  "SR",
+       "SJ",  "SZ",  "SE",  "CH",  "SY",  "TJ",  "TH",  "TG",  "TK",  "TO",
+       "TT",  "AE",  "TN",  "TR",  "TM",  "TC",  "TV",  "UG",  "UA",  "MK",
+       "EG",  "GB",  "JE",  "GG",  "JE",  "IM",  "TZ",  "US",  "VI",  "BF",
+       "UY",  "UZ",  "VE",  "WF",  "WS",  "YE",  "YE",  "RS",  "ZM",  "AA",
+       "QM",  "QN",  "QP",  "QQ",  "QR",  "QS",  "QT",  "EU",  "QV",  "QW",
+       "QX",  "QY",  "QZ",  "XA",  "XB",  "XC",  "XD",  "XE",  "XF",  "XG",
+       "XH",  "XI",  "XJ",  "XK",  "XL",  "XM",  "XN",  "XO",  "XP",  "XQ",
+       "XR",  "XS",  "XT",  "XU",  "XV",  "XW",  "XX",  "XY",  "XZ",  "ZZ",
+    };
+
+    if (const char* replacement = SearchReplacement(regions, aliases, region)) {
+      region.set(mozilla::MakeStringSpan(replacement));
+      return true;
+    }
+    return false;
+  }
+}
+
+// Region subtags with complex mappings.
+// Derived from CLDR Supplemental Data, version 39.
+// https://unicode.org/Public/cldr/39/core.zip
+bool mozilla::intl::Locale::complexRegionMapping(const RegionSubtag& region) {
+  MOZ_ASSERT(IsStructurallyValidRegionTag(region.span()));
+  MOZ_ASSERT(IsCanonicallyCasedRegionTag(region.span()));
+
+  if (region.length() == 2) {
+    return region.equalTo("AN") ||
+           region.equalTo("NT") ||
+           region.equalTo("PC") ||
+           region.equalTo("SU");
+  }
+
+  {
+    static const char regions[8][4] = {
+      "172", "200", "530", "532", "536", "582", "810", "890",
+    };
+
+    return HasReplacement(regions, region);
+  }
+}
+
+// Language subtags with complex mappings.
+// Derived from CLDR Supplemental Data, version 39.
+// https://unicode.org/Public/cldr/39/core.zip
+void mozilla::intl::Locale::performComplexLanguageMappings() {
+  MOZ_ASSERT(IsStructurallyValidLanguageTag(language().span()));
+  MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language().span()));
+
+  if (language().equalTo("cnr")) {
+    setLanguage("sr");
+    if (region().missing()) {
+      setRegion("ME");
+    }
+  }
+  else if (language().equalTo("drw") ||
+           language().equalTo("prs") ||
+           language().equalTo("tnf")) {
+    setLanguage("fa");
+    if (region().missing()) {
+      setRegion("AF");
+    }
+  }
+  else if (language().equalTo("hbs") ||
+           language().equalTo("sh")) {
+    setLanguage("sr");
+    if (script().missing()) {
+      setScript("Latn");
+    }
+  }
+  else if (language().equalTo("swc")) {
+    setLanguage("sw");
+    if (region().missing()) {
+      setRegion("CD");
+    }
+  }
+}
+
+// Region subtags with complex mappings.
+// Derived from CLDR Supplemental Data, version 39.
+// https://unicode.org/Public/cldr/39/core.zip
+void mozilla::intl::Locale::performComplexRegionMappings() {
+  MOZ_ASSERT(IsStructurallyValidLanguageTag(language().span()));
+  MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language().span()));
+  MOZ_ASSERT(IsStructurallyValidRegionTag(region().span()));
+  MOZ_ASSERT(IsCanonicallyCasedRegionTag(region().span()));
+
+  if (region().equalTo("172")) {
+    if (language().equalTo("hy") ||
+        (language().equalTo("und") && script().equalTo("Armn"))) {
+      setRegion("AM");
+    }
+    else if (language().equalTo("az") ||
+             language().equalTo("tkr") ||
+             language().equalTo("tly") ||
+             language().equalTo("ttt")) {
+      setRegion("AZ");
+    }
+    else if (language().equalTo("be")) {
+      setRegion("BY");
+    }
+    else if (language().equalTo("ab") ||
+             language().equalTo("ka") ||
+             (language().equalTo("ku") && script().equalTo("Yezi")) ||
+             language().equalTo("os") ||
+             (language().equalTo("und") && script().equalTo("Geor")) ||
+             (language().equalTo("und") && script().equalTo("Yezi")) ||
+             language().equalTo("xmf")) {
+      setRegion("GE");
+    }
+    else if (language().equalTo("ky")) {
+      setRegion("KG");
+    }
+    else if (language().equalTo("kk") ||
+             (language().equalTo("ug") && script().equalTo("Cyrl"))) {
+      setRegion("KZ");
+    }
+    else if (language().equalTo("gag")) {
+      setRegion("MD");
+    }
+    else if (language().equalTo("tg")) {
+      setRegion("TJ");
+    }
+    else if (language().equalTo("tk")) {
+      setRegion("TM");
+    }
+    else if (language().equalTo("crh") ||
+             language().equalTo("got") ||
+             language().equalTo("ji") ||
+             language().equalTo("rue") ||
+             language().equalTo("uk") ||
+             (language().equalTo("und") && script().equalTo("Goth"))) {
+      setRegion("UA");
+    }
+    else if (language().equalTo("kaa") ||
+             language().equalTo("sog") ||
+             (language().equalTo("und") && script().equalTo("Chrs")) ||
+             (language().equalTo("und") && script().equalTo("Sogd")) ||
+             (language().equalTo("und") && script().equalTo("Sogo")) ||
+             language().equalTo("uz") ||
+             language().equalTo("xco")) {
+      setRegion("UZ");
+    }
+    else {
+      setRegion("RU");
+    }
+  }
+  else if (region().equalTo("200")) {
+    if (language().equalTo("sk")) {
+      setRegion("SK");
+    }
+    else {
+      setRegion("CZ");
+    }
+  }
+  else if (region().equalTo("530") ||
+           region().equalTo("532") ||
+           region().equalTo("AN")) {
+    if (language().equalTo("vic")) {
+      setRegion("SX");
+    }
+    else {
+      setRegion("CW");
+    }
+  }
+  else if (region().equalTo("536") ||
+           region().equalTo("NT")) {
+    if (language().equalTo("akk") ||
+        language().equalTo("ckb") ||
+        (language().equalTo("ku") && script().equalTo("Arab")) ||
+        language().equalTo("syr") ||
+        (language().equalTo("und") && script().equalTo("Syrc")) ||
+        (language().equalTo("und") && script().equalTo("Xsux"))) {
+      setRegion("IQ");
+    }
+    else {
+      setRegion("SA");
+    }
+  }
+  else if (region().equalTo("582") ||
+           region().equalTo("PC")) {
+    if (language().equalTo("mh")) {
+      setRegion("MH");
+    }
+    else if (language().equalTo("pau")) {
+      setRegion("PW");
+    }
+    else {
+      setRegion("FM");
+    }
+  }
+  else if (region().equalTo("810") ||
+           region().equalTo("SU")) {
+    if (language().equalTo("hy") ||
+        (language().equalTo("und") && script().equalTo("Armn"))) {
+      setRegion("AM");
+    }
+    else if (language().equalTo("az") ||
+             language().equalTo("tkr") ||
+             language().equalTo("tly") ||
+             language().equalTo("ttt")) {
+      setRegion("AZ");
+    }
+    else if (language().equalTo("be")) {
+      setRegion("BY");
+    }
+    else if (language().equalTo("et") ||
+             language().equalTo("vro")) {
+      setRegion("EE");
+    }
+    else if (language().equalTo("ab") ||
+             language().equalTo("ka") ||
+             (language().equalTo("ku") && script().equalTo("Yezi")) ||
+             language().equalTo("os") ||
+             (language().equalTo("und") && script().equalTo("Geor")) ||
+             (language().equalTo("und") && script().equalTo("Yezi")) ||
+             language().equalTo("xmf")) {
+      setRegion("GE");
+    }
+    else if (language().equalTo("ky")) {
+      setRegion("KG");
+    }
+    else if (language().equalTo("kk") ||
+             (language().equalTo("ug") && script().equalTo("Cyrl"))) {
+      setRegion("KZ");
+    }
+    else if (language().equalTo("lt") ||
+             language().equalTo("sgs")) {
+      setRegion("LT");
+    }
+    else if (language().equalTo("ltg") ||
+             language().equalTo("lv")) {
+      setRegion("LV");
+    }
+    else if (language().equalTo("gag")) {
+      setRegion("MD");
+    }
+    else if (language().equalTo("tg")) {
+      setRegion("TJ");
+    }
+    else if (language().equalTo("tk")) {
+      setRegion("TM");
+    }
+    else if (language().equalTo("crh") ||
+             language().equalTo("got") ||
+             language().equalTo("ji") ||
+             language().equalTo("rue") ||
+             language().equalTo("uk") ||
+             (language().equalTo("und") && script().equalTo("Goth"))) {
+      setRegion("UA");
+    }
+    else if (language().equalTo("kaa") ||
+             language().equalTo("sog") ||
+             (language().equalTo("und") && script().equalTo("Chrs")) ||
+             (language().equalTo("und") && script().equalTo("Sogd")) ||
+             (language().equalTo("und") && script().equalTo("Sogo")) ||
+             language().equalTo("uz") ||
+             language().equalTo("xco")) {
+      setRegion("UZ");
+    }
+    else {
+      setRegion("RU");
+    }
+  }
+  else if (region().equalTo("890")) {
+    if (language().equalTo("bs")) {
+      setRegion("BA");
+    }
+    else if (language().equalTo("hr")) {
+      setRegion("HR");
+    }
+    else if (language().equalTo("mk")) {
+      setRegion("MK");
+    }
+    else if (language().equalTo("sl")) {
+      setRegion("SI");
+    }
+    else {
+      setRegion("RS");
+    }
+  }
+}
+
+static const char* ToCharPointer(const char* str) {
+  return str;
+}
+
+static const char* ToCharPointer(const mozilla::intl::UniqueChars& str) {
+  return str.get();
+}
+
+template <typename T, typename U = T>
+static bool IsLessThan(const T& a, const U& b) {
+  return strcmp(ToCharPointer(a), ToCharPointer(b)) < 0;
+}
+
+// Mappings from variant subtags to preferred values.
+// Derived from CLDR Supplemental Data, version 39.
+// https://unicode.org/Public/cldr/39/core.zip
+bool mozilla::intl::Locale::performVariantMappings() {
+  // The variant subtags need to be sorted for binary search.
+  MOZ_ASSERT(std::is_sorted(variants_.begin(), variants_.end(),
+                            IsLessThan<decltype(variants_)::ElementType>));
+
+  auto removeVariantAt = [&](size_t index) {
+    variants_.erase(variants_.begin() + index);
+  };
+
+  auto insertVariantSortedIfNotPresent = [&](const char* variant) {
+    auto* p = std::lower_bound(
+        variants_.begin(), variants_.end(), variant,
+        IsLessThan<decltype(variants_)::ElementType, decltype(variant)>);
+
+    // Don't insert the replacement when already present.
+    if (p != variants_.end() && strcmp(p->get(), variant) == 0) {
+      return true;
+    }
+
+    // Insert the preferred variant in sort order.
+    auto preferred = DuplicateStringToUniqueChars(variant);
+    return !!variants_.insert(p, std::move(preferred));
+  };
+
+  for (size_t i = 0; i < variants_.length();) {
+    const char* variant = variants_[i].get();
+    MOZ_ASSERT(IsCanonicallyCasedVariantTag(mozilla::MakeStringSpan(variant)));
+
+    if (strcmp(variant, "arevela") == 0 ||
+        strcmp(variant, "arevmda") == 0 ||
+        strcmp(variant, "bokmal") == 0 ||
+        strcmp(variant, "hakka") == 0 ||
+        strcmp(variant, "lojban") == 0 ||
+        strcmp(variant, "nynorsk") == 0 ||
+        strcmp(variant, "saaho") == 0 ||
+        strcmp(variant, "xiang") == 0) {
+      removeVariantAt(i);
+    }
+    else if (strcmp(variant, "aaland") == 0) {
+      removeVariantAt(i);
+      setRegion("AX");
+    }
+    else if (strcmp(variant, "heploc") == 0) {
+      removeVariantAt(i);
+      if (!insertVariantSortedIfNotPresent("alalc97")) {
+        return false;
+      }
+    }
+    else if (strcmp(variant, "polytoni") == 0) {
+      removeVariantAt(i);
+      if (!insertVariantSortedIfNotPresent("polyton")) {
+        return false;
+      }
+    }
+    else {
+      i++;
+    }
+  }
+  return true;
+}
+
+// Canonicalize legacy locale identifiers.
+// Derived from CLDR Supplemental Data, version 39.
+// https://unicode.org/Public/cldr/39/core.zip
+bool mozilla::intl::Locale::updateLegacyMappings() {
+  // We're mapping legacy tags to non-legacy form here.
+  // Other tags remain unchanged.
+  //
+  // Legacy tags are either sign language tags ("sgn") or have one or multiple
+  // variant subtags. Therefore we can quickly exclude most tags by checking
+  // these two subtags.
+
+  MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language().span()));
+
+  if (!language().equalTo("sgn") && variants().length() == 0) {
+    return true;
+  }
+
+  for ([[maybe_unused]] const auto& variant : variants()) {
+    MOZ_ASSERT(
+        IsStructurallyValidVariantTag(mozilla::MakeStringSpan(variant.get())));
+    MOZ_ASSERT(
+        IsCanonicallyCasedVariantTag(mozilla::MakeStringSpan(variant.get())));
+  }
+
+  // The variant subtags need to be sorted for binary search.
+  MOZ_ASSERT(std::is_sorted(variants_.begin(), variants_.end(),
+                            IsLessThan<decltype(variants_)::ElementType>));
+
+  auto findVariant = [this](const char* variant) {
+    auto* p = std::lower_bound(variants_.begin(), variants_.end(), variant,
+                               IsLessThan<decltype(variants_)::ElementType,
+                                          decltype(variant)>);
+
+    if (p != variants_.end() && strcmp(p->get(), variant) == 0) {
+      return p;
+    }
+    return static_cast<decltype(p)>(nullptr);
+  };
+
+  auto insertVariantSortedIfNotPresent = [&](const char* variant) {
+    auto* p = std::lower_bound(variants_.begin(), variants_.end(), variant,
+                               IsLessThan<decltype(variants_)::ElementType,
+                                          decltype(variant)>);
+
+    // Don't insert the replacement when already present.
+    if (p != variants_.end() && strcmp(p->get(), variant) == 0) {
+      return true;
+    }
+
+    // Insert the preferred variant in sort order.
+    auto preferred = DuplicateStringToUniqueChars(variant);
+    return !!variants_.insert(p, std::move(preferred));
+  };
+
+  auto removeVariant = [&](auto* p) {
+    size_t index = std::distance(variants_.begin(), p);
+    variants_.erase(variants_.begin() + index);
+  };
+
+  auto removeVariants = [&](auto* p, auto* q) {
+    size_t pIndex = std::distance(variants_.begin(), p);
+    size_t qIndex = std::distance(variants_.begin(), q);
+    MOZ_ASSERT(pIndex < qIndex, "variant subtags are sorted");
+
+    variants_.erase(variants_.begin() + qIndex);
+    variants_.erase(variants_.begin() + pIndex);
+  };
+
+  if (variants().length() >= 2) {
+    if (auto* hepburn = findVariant("hepburn")) {
+      if (auto* heploc = findVariant("heploc")) {
+        removeVariants(hepburn, heploc);
+
+        if (!insertVariantSortedIfNotPresent("alalc97")) {
+          return false;
+        }
+      }
+    }
+  }
+
+  if (language().equalTo("sgn")) {
+    if (region().present() && signLanguageMapping(language_, region())) {
+      region_.set(mozilla::MakeStringSpan(""));
+    }
+  }
+  else if (language().equalTo("aa") ||
+           language().equalTo("aar")) {
+    if (auto* saaho = findVariant("saaho")) {
+      removeVariant(saaho);
+      setLanguage("ssy");
+    }
+  }
+  else if (language().equalTo("arm") ||
+           language().equalTo("hy") ||
+           language().equalTo("hye")) {
+    if (auto* arevmda = findVariant("arevmda")) {
+      removeVariant(arevmda);
+      setLanguage("hyw");
+    }
+  }
+  else if (language().equalTo("art")) {
+    if (auto* lojban = findVariant("lojban")) {
+      removeVariant(lojban);
+      setLanguage("jbo");
+    }
+  }
+  else if (language().equalTo("cel")) {
+    if (auto* gaulish = findVariant("gaulish")) {
+      removeVariant(gaulish);
+      setLanguage("xtg");
+    }
+  }
+  else if (language().equalTo("chi") ||
+           language().equalTo("cmn") ||
+           language().equalTo("zh") ||
+           language().equalTo("zho")) {
+    if (auto* guoyu = findVariant("guoyu")) {
+      if (auto* hakka = findVariant("hakka")) {
+        removeVariants(guoyu, hakka);
+        setLanguage("hak");
+        return true;
+      }
+    }
+    if (auto* guoyu = findVariant("guoyu")) {
+      if (auto* xiang = findVariant("xiang")) {
+        removeVariants(guoyu, xiang);
+        setLanguage("hsn");
+        return true;
+      }
+    }
+    if (auto* guoyu = findVariant("guoyu")) {
+      removeVariant(guoyu);
+      setLanguage("zh");
+    }
+    else if (auto* hakka = findVariant("hakka")) {
+      removeVariant(hakka);
+      setLanguage("hak");
+    }
+    else if (auto* xiang = findVariant("xiang")) {
+      removeVariant(xiang);
+      setLanguage("hsn");
+    }
+  }
+  else if (language().equalTo("no") ||
+           language().equalTo("nor")) {
+    if (auto* bokmal = findVariant("bokmal")) {
+      removeVariant(bokmal);
+      setLanguage("nb");
+    }
+    else if (auto* nynorsk = findVariant("nynorsk")) {
+      removeVariant(nynorsk);
+      setLanguage("nn");
+    }
+  }
+
+  return true;
+}
+
+// Mappings from legacy sign languages.
+// Derived from CLDR Supplemental Data, version 39.
+// https://unicode.org/Public/cldr/39/core.zip
+bool mozilla::intl::Locale::signLanguageMapping(LanguageSubtag& language,
+                                                const RegionSubtag& region) {
+  MOZ_ASSERT(language.equalTo("sgn"));
+  MOZ_ASSERT(IsStructurallyValidRegionTag(region.span()));
+  MOZ_ASSERT(IsCanonicallyCasedRegionTag(region.span()));
+
+  if (region.length() == 2) {
+    static const char regions[22][3] = {
+      "BR", "CO", "DD", "DE", "DK", "ES", "FR", "FX", "GB", "GR",
+      "IE", "IT", "JP", "MX", "NI", "NL", "NO", "PT", "SE", "UK",
+      "US", "ZA",
+    };
+    static const char* aliases[22] = {
+      "bzs", "csn", "gsg", "gsg", "dsl", "ssp", "fsl", "fsl", "bfi", "gss",
+      "isg", "ise", "jsl", "mfs", "ncs", "dse", "nsi", "psr", "swl", "bfi",
+      "ase", "sfs",
+    };
+
+    if (const char* replacement = SearchReplacement(regions, aliases, region)) {
+      language.set(mozilla::MakeStringSpan(replacement));
+      return true;
+    }
+    return false;
+  }
+
+  {
+    static const char regions[22][4] = {
+      "076", "170", "208", "249", "250", "276", "278", "280", "300", "372",
+      "380", "392", "484", "528", "558", "578", "620", "710", "724", "752",
+      "826", "840",
+    };
+    static const char* aliases[22] = {
+      "bzs", "csn", "dsl", "fsl", "fsl", "gsg", "gsg", "gsg", "gss", "isg",
+      "ise", "jsl", "mfs", "dse", "ncs", "nsi", "psr", "sfs", "ssp", "swl",
+      "bfi", "ase",
+    };
+
+    if (const char* replacement = SearchReplacement(regions, aliases, region)) {
+      language.set(mozilla::MakeStringSpan(replacement));
+      return true;
+    }
+    return false;
+  }
+}
+
+template <size_t Length>
+static inline bool IsUnicodeKey(mozilla::Span<const char> key, const char (&str)[Length]) {
+  static_assert(Length == UnicodeKeyLength + 1,
+                "Unicode extension key is two characters long");
+  return memcmp(key.data(), str, Length - 1) == 0;
+}
+
+template <size_t Length>
+static inline bool IsUnicodeType(mozilla::Span<const char> type, const char (&str)[Length]) {
+  static_assert(Length > UnicodeKeyLength + 1,
+                "Unicode extension type contains more than two characters");
+  return type.size() == (Length - 1) &&
+         memcmp(type.data(), str, Length - 1) == 0;
+}
+
+static int32_t CompareUnicodeType(const char* a, mozilla::Span<const char> b) {
+  MOZ_ASSERT(!std::char_traits<char>::find(b.data(), b.size(), '\0'),
+             "unexpected null-character in string");
+
+  using UnsignedChar = unsigned char;
+  for (size_t i = 0; i < b.size(); i++) {
+    // |a| is zero-terminated and |b| doesn't contain a null-terminator. So if
+    // we've reached the end of |a|, the below if-statement will always be true.
+    // That ensures we don't read past the end of |a|.
+    if (int32_t r = UnsignedChar(a[i]) - UnsignedChar(b[i])) {
+      return r;
+    }
+  }
+
+  // Return zero if both strings are equal or a positive number if |b| is a
+  // prefix of |a|.
+  return int32_t(UnsignedChar(a[b.size()]));
+}
+
+template <size_t Length>
+static inline const char* SearchUnicodeReplacement(
+  const char* (&types)[Length], const char* (&aliases)[Length],
+  mozilla::Span<const char> type) {
+
+  auto p = std::lower_bound(std::begin(types), std::end(types), type,
+                            [](const auto& a, const auto& b) {
+                              return CompareUnicodeType(a, b) < 0;
+                            });
+  if (p != std::end(types) && CompareUnicodeType(*p, type) == 0) {
+    return aliases[std::distance(std::begin(types), p)];
+  }
+  return nullptr;
+}
+
+/**
+ * Mapping from deprecated BCP 47 Unicode extension types to their preferred
+ * values.
+ *
+ * Spec: https://www.unicode.org/reports/tr35/#Unicode_Locale_Extension_Data_Files
+ * Spec: https://www.unicode.org/reports/tr35/#t_Extension
+ */
+const char* mozilla::intl::Locale::replaceUnicodeExtensionType(
+    mozilla::Span<const char> key, mozilla::Span<const char> type) {
+  MOZ_ASSERT(key.size() == UnicodeKeyLength);
+  MOZ_ASSERT(IsCanonicallyCasedUnicodeKey(key));
+
+  MOZ_ASSERT(type.size() > UnicodeKeyLength);
+  MOZ_ASSERT(IsCanonicallyCasedUnicodeType(type));
+
+  if (IsUnicodeKey(key, "ca")) {
+    if (IsUnicodeType(type, "ethiopic-amete-alem")) {
+      return "ethioaa";
+    }
+    if (IsUnicodeType(type, "islamicc")) {
+      return "islamic-civil";
+    }
+  }
+  else if (IsUnicodeKey(key, "kb") ||
+           IsUnicodeKey(key, "kc") ||
+           IsUnicodeKey(key, "kh") ||
+           IsUnicodeKey(key, "kk") ||
+           IsUnicodeKey(key, "kn")) {
+    if (IsUnicodeType(type, "yes")) {
+      return "true";
+    }
+  }
+  else if (IsUnicodeKey(key, "ks")) {
+    if (IsUnicodeType(type, "primary")) {
+      return "level1";
+    }
+    if (IsUnicodeType(type, "tertiary")) {
+      return "level3";
+    }
+  }
+  else if (IsUnicodeKey(key, "ms")) {
+    if (IsUnicodeType(type, "imperial")) {
+      return "uksystem";
+    }
+  }
+  else if (IsUnicodeKey(key, "rg") ||
+           IsUnicodeKey(key, "sd")) {
+    static const char* types[144] = {
+         "cn11" ,  "cn12" ,  "cn13" ,  "cn14" ,  "cn15" ,  "cn21" ,  "cn22" ,
+         "cn23" ,  "cn31" ,  "cn32" ,  "cn33" ,  "cn34" ,  "cn35" ,  "cn36" ,
+         "cn37" ,  "cn41" ,  "cn42" ,  "cn43" ,  "cn44" ,  "cn45" ,  "cn46" ,
+         "cn50" ,  "cn51" ,  "cn52" ,  "cn53" ,  "cn54" ,  "cn61" ,  "cn62" ,
+         "cn63" ,  "cn64" ,  "cn65" ,  "cn71" ,  "cn91" ,  "cn92" , "cz10a" ,
+        "cz10b" , "cz10c" , "cz10d" , "cz10e" , "cz10f" , "cz611" , "cz612" ,
+        "cz613" , "cz614" , "cz615" , "cz621" , "cz622" , "cz623" , "cz624" ,
+        "cz626" , "cz627" ,  "czjc" ,  "czjm" ,  "czka" ,  "czkr" ,  "czli" ,
+         "czmo" ,  "czol" ,  "czpa" ,  "czpl" ,  "czpr" ,  "czst" ,  "czus" ,
+         "czvy" ,  "czzl" ,  "fi01" ,  "fra"  ,  "frb"  ,  "frbl" ,  "frc"  ,
+         "frcp" ,  "frd"  ,  "fre"  ,  "frf"  ,  "frg"  ,  "frgf" ,  "frgp" ,
+         "frh"  ,  "fri"  ,  "frj"  ,  "frk"  ,  "frl"  ,  "frm"  ,  "frmf" ,
+         "frmq" ,  "frn"  ,  "frnc" ,  "fro"  ,  "frp"  ,  "frpf" ,  "frpm" ,
+         "frq"  ,  "frr"  ,  "frre" ,  "frs"  ,  "frt"  ,  "frtf" ,  "fru"  ,
+         "frv"  ,  "frwf" ,  "fryt" ,  "laxn" ,  "lud"  ,  "lug"  ,  "lul"  ,
+        "mrnkc" ,  "nlaw" ,  "nlcw" ,  "nlsx" ,  "no23" ,  "nzn"  ,  "nzs"  ,
+         "omba" ,  "omsh" ,  "plds" ,  "plkp" ,  "pllb" ,  "plld" ,  "pllu" ,
+         "plma" ,  "plmz" ,  "plop" ,  "plpd" ,  "plpk" ,  "plpm" ,  "plsk" ,
+         "plsl" ,  "plwn" ,  "plwp" ,  "plzp" ,  "shta" , "tteto" , "ttrcm" ,
+        "ttwto" , "twkhq" , "twtnq" , "twtpq" , "twtxq" ,  "usas" ,  "usgu" ,
+         "usmp" ,  "uspr" ,  "usum" ,  "usvi" ,
+    };
+    static const char* aliases[144] = {
+         "cnbj" ,  "cntj" ,  "cnhe" ,  "cnsx" ,  "cnmn" ,  "cnln" ,  "cnjl" ,
+         "cnhl" ,  "cnsh" ,  "cnjs" ,  "cnzj" ,  "cnah" ,  "cnfj" ,  "cnjx" ,
+         "cnsd" ,  "cnha" ,  "cnhb" ,  "cnhn" ,  "cngd" ,  "cngx" ,  "cnhi" ,
+         "cncq" ,  "cnsc" ,  "cngz" ,  "cnyn" ,  "cnxz" ,  "cnsn" ,  "cngs" ,
+         "cnqh" ,  "cnnx" ,  "cnxj" , "twzzzz", "hkzzzz", "mozzzz", "cz110" ,
+        "cz111" , "cz112" , "cz113" , "cz114" , "cz115" , "cz663" , "cz632" ,
+        "cz633" , "cz634" , "cz635" , "cz641" , "cz642" , "cz643" , "cz644" ,
+        "cz646" , "cz647" ,  "cz31" ,  "cz64" ,  "cz41" ,  "cz52" ,  "cz51" ,
+         "cz80" ,  "cz71" ,  "cz53" ,  "cz32" ,  "cz10" ,  "cz20" ,  "cz42" ,
+         "cz63" ,  "cz72" , "axzzzz", "frges" , "frnaq" , "blzzzz", "frara" ,
+        "cpzzzz", "frbfc" , "frbre" , "frcvl" , "frges" , "gfzzzz", "gpzzzz",
+        "frcor" , "frbfc" , "fridf" , "frocc" , "frnaq" , "frges" , "mfzzzz",
+        "mqzzzz", "frocc" , "nczzzz", "frhdf" , "frnor" , "pfzzzz", "pmzzzz",
+        "frnor" , "frpdl" , "rezzzz", "frhdf" , "frnaq" , "tfzzzz", "frpac" ,
+        "frara" , "wfzzzz", "ytzzzz",  "laxs" ,  "lucl" ,  "luec" ,  "luca" ,
+         "mr13" , "awzzzz", "cwzzzz", "sxzzzz",  "no50" , "nzauk" , "nzcan" ,
+         "ombj" ,  "omsj" ,  "pl02" ,  "pl04" ,  "pl08" ,  "pl10" ,  "pl06" ,
+         "pl12" ,  "pl14" ,  "pl16" ,  "pl20" ,  "pl18" ,  "pl22" ,  "pl26" ,
+         "pl24" ,  "pl28" ,  "pl30" ,  "pl32" , "tazzzz", "tttob" , "ttmrc" ,
+        "tttob" , "twkhh" , "twtnn" , "twnwt" , "twtxg" , "aszzzz", "guzzzz",
+        "mpzzzz", "przzzz", "umzzzz", "vizzzz",
+    };
+    return SearchUnicodeReplacement(types, aliases, type);
+  }
+  else if (IsUnicodeKey(key, "tz")) {
+    static const char* types[28] = {
+         "aqams"  ,  "cnckg"  ,  "cnhrb"  ,  "cnkhg"  ,   "cuba"  ,  "egypt"  ,
+          "eire"  ,   "est"   ,   "gmt0"  , "hongkong",   "hst"   , "iceland" ,
+          "iran"  ,  "israel" , "jamaica" ,  "japan"  ,  "libya"  ,   "mst"   ,
+         "navajo" ,  "poland" , "portugal",   "prc"   ,   "roc"   ,   "rok"   ,
+         "turkey" ,   "uct"   , "usnavajo",   "zulu"  ,
+    };
+    static const char* aliases[28] = {
+         "nzakl"  ,  "cnsha"  ,  "cnsha"  ,  "cnurc"  ,  "cuhav"  ,  "egcai"  ,
+         "iedub"  ,  "utcw05" ,   "gmt"   ,  "hkhkg"  ,  "utcw10" ,  "isrey"  ,
+         "irthr"  , "jeruslm" ,  "jmkin"  ,  "jptyo"  ,  "lytip"  ,  "utcw07" ,
+         "usden"  ,  "plwaw"  ,  "ptlis"  ,  "cnsha"  ,  "twtpe"  ,  "krsel"  ,
+         "trist"  ,   "utc"   ,  "usden"  ,   "utc"   ,
+    };
+    return SearchUnicodeReplacement(types, aliases, type);
+  }
+  return nullptr;
+}
+
+template <size_t Length>
+static inline bool IsTransformKey(mozilla::Span<const char> key, const char (&str)[Length]) {
+  static_assert(Length == TransformKeyLength + 1,
+                "Transform extension key is two characters long");
+  return memcmp(key.data(), str, Length - 1) == 0;
+}
+
+template <size_t Length>
+static inline bool IsTransformType(mozilla::Span<const char> type, const char (&str)[Length]) {
+  static_assert(Length > TransformKeyLength + 1,
+                "Transform extension type contains more than two characters");
+  return type.size() == (Length - 1) &&
+         memcmp(type.data(), str, Length - 1) == 0;
+}
+
+/**
+ * Mapping from deprecated BCP 47 Transform extension types to their preferred
+ * values.
+ *
+ * Spec: https://www.unicode.org/reports/tr35/#Unicode_Locale_Extension_Data_Files
+ * Spec: https://www.unicode.org/reports/tr35/#t_Extension
+ */
+const char* mozilla::intl::Locale::replaceTransformExtensionType(
+    mozilla::Span<const char> key, mozilla::Span<const char> type) {
+  MOZ_ASSERT(key.size() == TransformKeyLength);
+  MOZ_ASSERT(IsCanonicallyCasedTransformKey(key));
+
+  MOZ_ASSERT(type.size() > TransformKeyLength);
+  MOZ_ASSERT(IsCanonicallyCasedTransformType(type));
+
+  if (IsTransformKey(key, "d0")) {
+    if (IsTransformType(type, "name")) {
+      return "charname";
+    }
+  }
+  else if (IsTransformKey(key, "m0")) {
+    if (IsTransformType(type, "names")) {
+      return "prprname";
+    }
+  }
+  return nullptr;
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/components/src/Locale.h firefox-trunk-95.0~a1~hg20211020r596404/intl/components/src/Locale.h
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/components/src/Locale.h	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/components/src/Locale.h	2021-10-20 19:28:21.000000000 +0000
@@ -2,22 +2,407 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-#ifndef intl_components_Locale_h_
-#define intl_components_Locale_h_
+/* Structured representation of Unicode locale IDs used with Intl functions. */
 
-#include "unicode/uloc.h"
+#ifndef intl_components_Locale_h
+#define intl_components_Locale_h
 
+#include "mozilla/Assertions.h"
+#include "mozilla/intl/ICUError.h"
 #include "mozilla/intl/ICU4CGlue.h"
+#include "mozilla/Span.h"
+#include "mozilla/TextUtils.h"
+#include "mozilla/TypedEnumBits.h"
+#include "mozilla/Variant.h"
+#include "mozilla/Vector.h"
+#include "mozilla/Result.h"
+
+#include <algorithm>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+#include <utility>
+
+#include "unicode/uloc.h"
 
 namespace mozilla::intl {
 
-class Locale final {
+/**
+ * Return true if |language| is a valid language subtag.
+ */
+template <typename CharT>
+bool IsStructurallyValidLanguageTag(mozilla::Span<const CharT> language);
+
+/**
+ * Return true if |script| is a valid script subtag.
+ */
+template <typename CharT>
+bool IsStructurallyValidScriptTag(mozilla::Span<const CharT> script);
+
+/**
+ * Return true if |region| is a valid region subtag.
+ */
+template <typename CharT>
+bool IsStructurallyValidRegionTag(mozilla::Span<const CharT> region);
+
+#ifdef DEBUG
+/**
+ * Return true if |variant| is a valid variant subtag.
+ */
+bool IsStructurallyValidVariantTag(mozilla::Span<const char> variant);
+
+/**
+ * Return true if |extension| is a valid Unicode extension subtag.
+ */
+bool IsStructurallyValidUnicodeExtensionTag(
+    mozilla::Span<const char> extension);
+
+/**
+ * Return true if |privateUse| is a valid private-use subtag.
+ */
+bool IsStructurallyValidPrivateUseTag(mozilla::Span<const char> privateUse);
+
+#endif
+
+template <typename CharT>
+char AsciiToLowerCase(CharT c) {
+  MOZ_ASSERT(mozilla::IsAscii(c));
+  return mozilla::IsAsciiUppercaseAlpha(c) ? (c + 0x20) : c;
+}
+
+template <typename CharT>
+char AsciiToUpperCase(CharT c) {
+  MOZ_ASSERT(mozilla::IsAscii(c));
+  return mozilla::IsAsciiLowercaseAlpha(c) ? (c - 0x20) : c;
+}
+
+template <typename CharT>
+void AsciiToLowerCase(CharT* chars, size_t length, char* dest) {
+  char (&fn)(CharT) = AsciiToLowerCase;
+  std::transform(chars, chars + length, dest, fn);
+}
+
+template <typename CharT>
+void AsciiToUpperCase(CharT* chars, size_t length, char* dest) {
+  char (&fn)(CharT) = AsciiToUpperCase;
+  std::transform(chars, chars + length, dest, fn);
+}
+
+template <typename CharT>
+void AsciiToTitleCase(CharT* chars, size_t length, char* dest) {
+  if (length > 0) {
+    AsciiToUpperCase(chars, 1, dest);
+    AsciiToLowerCase(chars + 1, length - 1, dest + 1);
+  }
+}
+
+// Constants for language subtag lengths.
+namespace LanguageTagLimits {
+
+// unicode_language_subtag = alpha{2,3} | alpha{5,8} ;
+static constexpr size_t LanguageLength = 8;
+
+// unicode_script_subtag = alpha{4} ;
+static constexpr size_t ScriptLength = 4;
+
+// unicode_region_subtag = (alpha{2} | digit{3}) ;
+static constexpr size_t RegionLength = 3;
+static constexpr size_t AlphaRegionLength = 2;
+static constexpr size_t DigitRegionLength = 3;
+
+// key = alphanum alpha ;
+static constexpr size_t UnicodeKeyLength = 2;
+
+// tkey = alpha digit ;
+static constexpr size_t TransformKeyLength = 2;
+
+}  // namespace LanguageTagLimits
+
+// Fixed size language subtag which is stored inline in Locale.
+template <size_t Length>
+class LanguageTagSubtag final {
+  uint8_t length_ = 0;
+  char chars_[Length] = {};  // zero initialize
+
+ public:
+  LanguageTagSubtag() = default;
+
+  LanguageTagSubtag(const LanguageTagSubtag&) = delete;
+  LanguageTagSubtag& operator=(const LanguageTagSubtag&) = delete;
+
+  size_t length() const { return length_; }
+  bool missing() const { return length_ == 0; }
+  bool present() const { return length_ > 0; }
+
+  mozilla::Span<const char> span() const { return {chars_, length_}; }
+
+  template <typename CharT>
+  void set(mozilla::Span<const CharT> str) {
+    MOZ_ASSERT(str.size() <= Length);
+    std::copy_n(str.data(), str.size(), chars_);
+    length_ = str.size();
+  }
+
+  // The toXYZCase() methods are using |Length| instead of |length()|, because
+  // current compilers (tested GCC and Clang) can't infer the maximum string
+  // length - even when using hints like |std::min| - and instead are emitting
+  // SIMD optimized code. Using a fixed sized length avoids emitting the SIMD
+  // code. (Emitting SIMD code doesn't make sense here, because the SIMD code
+  // only kicks in for long strings.) A fixed length will additionally ensure
+  // the compiler unrolls the loop in the case conversion code.
+
+  void toLowerCase() { AsciiToLowerCase(chars_, Length, chars_); }
+
+  void toUpperCase() { AsciiToUpperCase(chars_, Length, chars_); }
+
+  void toTitleCase() { AsciiToTitleCase(chars_, Length, chars_); }
+
+  template <size_t N>
+  bool equalTo(const char (&str)[N]) const {
+    static_assert(N - 1 <= Length,
+                  "subtag literals must not exceed the maximum subtag length");
+
+    return length_ == N - 1 && memcmp(chars_, str, N - 1) == 0;
+  }
+};
+
+using LanguageSubtag = LanguageTagSubtag<LanguageTagLimits::LanguageLength>;
+using ScriptSubtag = LanguageTagSubtag<LanguageTagLimits::ScriptLength>;
+using RegionSubtag = LanguageTagSubtag<LanguageTagLimits::RegionLength>;
+
+using Latin1Char = unsigned char;
+using UniqueChars = UniquePtr<char[]>;
+
+/**
+ * Object representing a Unicode BCP 47 locale identifier.
+ *
+ * All subtags are already in canonicalized case.
+ */
+class MOZ_STACK_CLASS Locale final {
+  LanguageSubtag language_ = {};
+  ScriptSubtag script_ = {};
+  RegionSubtag region_ = {};
+
+  using VariantsVector = Vector<UniqueChars, 2>;
+  using ExtensionsVector = Vector<UniqueChars, 2>;
+
+  VariantsVector variants_;
+  ExtensionsVector extensions_;
+  UniqueChars privateuse_ = nullptr;
+
+  friend class LocaleParser;
+
+ public:
+  enum class CanonicalizationError : uint8_t {
+    DuplicateVariant,
+    InternalError,
+    OutOfMemory,
+  };
+
+ private:
+  Result<Ok, CanonicalizationError> canonicalizeUnicodeExtension(
+      UniqueChars& unicodeExtension);
+
+  Result<Ok, CanonicalizationError> canonicalizeTransformExtension(
+      UniqueChars& transformExtension);
+
  public:
-  Locale() = delete;
+  static bool languageMapping(LanguageSubtag& language);
+  static bool complexLanguageMapping(const LanguageSubtag& language);
+
+ private:
+  static bool scriptMapping(ScriptSubtag& script);
+  static bool regionMapping(RegionSubtag& region);
+  static bool complexRegionMapping(const RegionSubtag& region);
+
+  void performComplexLanguageMappings();
+  void performComplexRegionMappings();
+  [[nodiscard]] bool performVariantMappings();
+
+  [[nodiscard]] bool updateLegacyMappings();
+
+  static bool signLanguageMapping(LanguageSubtag& language,
+                                  const RegionSubtag& region);
+
+  static const char* replaceTransformExtensionType(
+      mozilla::Span<const char> key, mozilla::Span<const char> type);
+
+ public:
+  /**
+   * Given a Unicode key and type, return the null-terminated preferred
+   * replacement for that type if there is one, or null if there is none, e.g.
+   * in effect
+   * |replaceUnicodeExtensionType("ca", "islamicc") == "islamic-civil"|
+   * and
+   * |replaceUnicodeExtensionType("ca", "islamic-civil") == nullptr|.
+   */
+  static const char* replaceUnicodeExtensionType(
+      mozilla::Span<const char> key, mozilla::Span<const char> type);
+
+ public:
+  Locale() = default;
+  Locale(const Locale&) = delete;
+  Locale& operator=(const Locale&) = delete;
+
+  const LanguageSubtag& language() const { return language_; }
+  const ScriptSubtag& script() const { return script_; }
+  const RegionSubtag& region() const { return region_; }
+  const auto& variants() const { return variants_; }
+  const auto& extensions() const { return extensions_; }
+  const char* privateuse() const { return privateuse_.get(); }
+
+  /**
+   * Return the Unicode extension subtag or nullptr if not present.
+   */
+  const char* unicodeExtension() const;
+
+ private:
+  ptrdiff_t unicodeExtensionIndex() const;
+
+ public:
+  /**
+   * Set the language subtag. The input must be a valid language subtag.
+   */
+  template <size_t N>
+  void setLanguage(const char (&language)[N]) {
+    mozilla::Span<const char> span(language, N - 1);
+    MOZ_ASSERT(IsStructurallyValidLanguageTag(span));
+    language_.set(span);
+  }
+
+  /**
+   * Set the language subtag. The input must be a valid language subtag.
+   */
+  void setLanguage(const LanguageSubtag& language) {
+    MOZ_ASSERT(IsStructurallyValidLanguageTag(language.span()));
+    language_.set(language.span());
+  }
+
+  /**
+   * Set the script subtag. The input must be a valid script subtag.
+   */
+  template <size_t N>
+  void setScript(const char (&script)[N]) {
+    mozilla::Span<const char> span(script, N - 1);
+    MOZ_ASSERT(IsStructurallyValidScriptTag(span));
+    script_.set(span);
+  }
+
+  /**
+   * Set the script subtag. The input must be a valid script subtag or the empty
+   * string.
+   */
+  void setScript(const ScriptSubtag& script) {
+    MOZ_ASSERT(script.missing() || IsStructurallyValidScriptTag(script.span()));
+    script_.set(script.span());
+  }
+
+  /**
+   * Set the region subtag. The input must be a valid region subtag.
+   */
+  template <size_t N>
+  void setRegion(const char (&region)[N]) {
+    mozilla::Span<const char> span(region, N - 1);
+    MOZ_ASSERT(IsStructurallyValidRegionTag(span));
+    region_.set(span);
+  }
+
+  /**
+   * Set the region subtag. The input must be a valid region subtag or the empty
+   * empty string.
+   */
+  void setRegion(const RegionSubtag& region) {
+    MOZ_ASSERT(region.missing() || IsStructurallyValidRegionTag(region.span()));
+    region_.set(region.span());
+  }
+
+  /**
+   * Removes all variant subtags.
+   */
+  void clearVariants() { variants_.clearAndFree(); }
+
+  /**
+   * Set the Unicode extension subtag. The input must be a valid Unicode
+   * extension subtag.
+   */
+  [[nodiscard]] bool setUnicodeExtension(const char* extension);
+
+  /**
+   * Remove any Unicode extension subtag if present.
+   */
+  void clearUnicodeExtension();
+
+  /** Canonicalize the base-name (language, script, region, variant) subtags. */
+  Result<Ok, CanonicalizationError> canonicalizeBaseName();
+
+  /**
+   * Canonicalize all extension subtags.
+   */
+  Result<Ok, CanonicalizationError> canonicalizeExtensions();
+
+  /**
+   * Canonicalizes the given structurally valid Unicode BCP 47 locale
+   * identifier, including regularized case of subtags. For example, the
+   * locale Zh-haNS-bu-variant2-Variant1-u-ca-chinese-t-Zh-laTN-x-PRIVATE,
+   * where
+   *
+   *     Zh             ; 2*3ALPHA
+   *     -haNS          ; ["-" script]
+   *     -bu            ; ["-" region]
+   *     -variant2      ; *("-" variant)
+   *     -Variant1
+   *     -u-ca-chinese  ; *("-" extension)
+   *     -t-Zh-laTN
+   *     -x-PRIVATE     ; ["-" privateuse]
+   *
+   * becomes zh-Hans-MM-variant1-variant2-t-zh-latn-u-ca-chinese-x-private
+   *
+   * Spec: ECMAScript Internationalization API Specification, 6.2.3.
+   */
+  Result<Ok, CanonicalizationError> canonicalize() {
+    MOZ_TRY(canonicalizeBaseName());
+    return canonicalizeExtensions();
+  }
+
+  /**
+   * Fill the buffer with a string representation of the locale.
+   */
+  template <typename B>
+  Result<Ok, ICUError> toString(B& buffer) const {
+    static_assert(std::is_same_v<typename B::CharType, char>);
+
+    size_t capacity = toStringCapacity();
+
+    // Attempt to reserve needed capacity
+    if (!buffer.reserve(capacity)) {
+      return Err(ICUError::OutOfMemory);
+    }
+
+    size_t offset = toStringAppend(buffer.data());
+
+    MOZ_ASSERT(capacity == offset);
+    buffer.written(offset);
+
+    return Ok();
+  }
+
+  /**
+   * Add likely-subtags to the locale.
+   *
+   * Spec: <https://www.unicode.org/reports/tr35/#Likely_Subtags>
+   */
+  [[nodiscard]] bool addLikelySubtags();
+
+  /**
+   * Remove likely-subtags from the locale.
+   *
+   * Spec: <https://www.unicode.org/reports/tr35/#Likely_Subtags>
+   */
+  [[nodiscard]] bool removeLikelySubtags();
 
   /**
    * Returns the default locale as an ICU locale identifier. The returned string
-   * is NOT a valid BCP 47 language tag!
+   * is NOT a valid BCP 47 locale!
    *
    * Also see <https://unicode-org.github.io/icu/userguide/locale>.
    */
@@ -35,8 +420,273 @@
     return AvailableLocalesEnumeration<uloc_countAvailable,
                                        uloc_getAvailable>();
   }
+
+ private:
+  static UniqueChars DuplicateStringToUniqueChars(const char* s);
+  size_t toStringCapacity() const;
+  size_t toStringAppend(char* buffer) const;
+};
+
+/**
+ * Parser for Unicode BCP 47 locale identifiers.
+ *
+ * <https://unicode.org/reports/tr35/#Unicode_Language_and_Locale_Identifiers>
+ */
+class MOZ_STACK_CLASS LocaleParser final {
+ public:
+  enum class ParserError : uint8_t {
+    // Input was not parseable as a locale, subtag or extension.
+    NotParseable,
+    // Unable to allocate memory for the parser to operate.
+    OutOfMemory,
+  };
+
+  // Exposed as |public| for |MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS|.
+  enum class TokenKind : uint8_t {
+    None = 0b000,
+    Alpha = 0b001,
+    Digit = 0b010,
+    AlphaDigit = 0b011,
+    Error = 0b100
+  };
+
+ private:
+  class Token final {
+    size_t index_;
+    size_t length_;
+    TokenKind kind_;
+
+   public:
+    Token(TokenKind kind, size_t index, size_t length)
+        : index_(index), length_(length), kind_(kind) {}
+
+    TokenKind kind() const { return kind_; }
+    size_t index() const { return index_; }
+    size_t length() const { return length_; }
+
+    bool isError() const { return kind_ == TokenKind::Error; }
+    bool isNone() const { return kind_ == TokenKind::None; }
+    bool isAlpha() const { return kind_ == TokenKind::Alpha; }
+    bool isDigit() const { return kind_ == TokenKind::Digit; }
+    bool isAlphaDigit() const { return kind_ == TokenKind::AlphaDigit; }
+  };
+
+  const char* locale_;
+  size_t length_;
+  size_t index_ = 0;
+
+  explicit LocaleParser(Span<const char> locale)
+      : locale_(locale.data()), length_(locale.size()) {}
+
+  char charAt(size_t index) const { return locale_[index]; }
+
+  // Copy the token characters into |subtag|.
+  template <size_t N>
+  void copyChars(const Token& tok, LanguageTagSubtag<N>& subtag) const {
+    subtag.set(mozilla::Span(locale_ + tok.index(), tok.length()));
+  }
+
+  // Create a string copy of |length| characters starting at |index|.
+  UniqueChars chars(size_t index, size_t length) const;
+
+  // Create a string copy of the token characters.
+  UniqueChars chars(const Token& tok) const {
+    return chars(tok.index(), tok.length());
+  }
+
+  UniqueChars extension(const Token& start, const Token& end) const {
+    MOZ_ASSERT(start.index() < end.index());
+
+    size_t length = end.index() - 1 - start.index();
+    return chars(start.index(), length);
+  }
+
+  Token nextToken();
+
+  // unicode_language_subtag = alpha{2,3} | alpha{5,8} ;
+  //
+  // Four character language subtags are not allowed in Unicode BCP 47 locale
+  // identifiers. Also see the comparison to Unicode CLDR locale identifiers in
+  // <https://unicode.org/reports/tr35/#BCP_47_Conformance>.
+  bool isLanguage(const Token& tok) const {
+    return tok.isAlpha() && ((2 <= tok.length() && tok.length() <= 3) ||
+                             (5 <= tok.length() && tok.length() <= 8));
+  }
+
+  // unicode_script_subtag = alpha{4} ;
+  bool isScript(const Token& tok) const {
+    return tok.isAlpha() && tok.length() == 4;
+  }
+
+  // unicode_region_subtag = (alpha{2} | digit{3}) ;
+  bool isRegion(const Token& tok) const {
+    return (tok.isAlpha() && tok.length() == 2) ||
+           (tok.isDigit() && tok.length() == 3);
+  }
+
+  // unicode_variant_subtag = (alphanum{5,8} | digit alphanum{3}) ;
+  bool isVariant(const Token& tok) const {
+    return (5 <= tok.length() && tok.length() <= 8) ||
+           (tok.length() == 4 && mozilla::IsAsciiDigit(charAt(tok.index())));
+  }
+
+  // Returns the code unit of the first character at the given singleton token.
+  // Always returns the lower case form of an alphabetical character.
+  char singletonKey(const Token& tok) const {
+    MOZ_ASSERT(tok.length() == 1);
+    return AsciiToLowerCase(charAt(tok.index()));
+  }
+
+  // extensions = unicode_locale_extensions |
+  //              transformed_extensions |
+  //              other_extensions ;
+  //
+  // unicode_locale_extensions = sep [uU] ((sep keyword)+ |
+  //                                       (sep attribute)+ (sep keyword)*) ;
+  //
+  // transformed_extensions = sep [tT] ((sep tlang (sep tfield)*) |
+  //                                    (sep tfield)+) ;
+  //
+  // other_extensions = sep [alphanum-[tTuUxX]] (sep alphanum{2,8})+ ;
+  bool isExtensionStart(const Token& tok) const {
+    return tok.length() == 1 && singletonKey(tok) != 'x';
+  }
+
+  // other_extensions = sep [alphanum-[tTuUxX]] (sep alphanum{2,8})+ ;
+  bool isOtherExtensionPart(const Token& tok) const {
+    return 2 <= tok.length() && tok.length() <= 8;
+  }
+
+  // unicode_locale_extensions = sep [uU] ((sep keyword)+ |
+  //                                       (sep attribute)+ (sep keyword)*) ;
+  // keyword = key (sep type)? ;
+  bool isUnicodeExtensionPart(const Token& tok) const {
+    return isUnicodeExtensionKey(tok) || isUnicodeExtensionType(tok) ||
+           isUnicodeExtensionAttribute(tok);
+  }
+
+  // attribute = alphanum{3,8} ;
+  bool isUnicodeExtensionAttribute(const Token& tok) const {
+    return 3 <= tok.length() && tok.length() <= 8;
+  }
+
+  // key = alphanum alpha ;
+  bool isUnicodeExtensionKey(const Token& tok) const {
+    return tok.length() == 2 && mozilla::IsAsciiAlpha(charAt(tok.index() + 1));
+  }
+
+  // type = alphanum{3,8} (sep alphanum{3,8})* ;
+  bool isUnicodeExtensionType(const Token& tok) const {
+    return 3 <= tok.length() && tok.length() <= 8;
+  }
+
+  // tkey = alpha digit ;
+  bool isTransformExtensionKey(const Token& tok) const {
+    return tok.length() == 2 && mozilla::IsAsciiAlpha(charAt(tok.index())) &&
+           mozilla::IsAsciiDigit(charAt(tok.index() + 1));
+  }
+
+  // tvalue = (sep alphanum{3,8})+ ;
+  bool isTransformExtensionPart(const Token& tok) const {
+    return 3 <= tok.length() && tok.length() <= 8;
+  }
+
+  // pu_extensions = sep [xX] (sep alphanum{1,8})+ ;
+  bool isPrivateUseStart(const Token& tok) const {
+    return tok.length() == 1 && singletonKey(tok) == 'x';
+  }
+
+  // pu_extensions = sep [xX] (sep alphanum{1,8})+ ;
+  bool isPrivateUsePart(const Token& tok) const {
+    return 1 <= tok.length() && tok.length() <= 8;
+  }
+
+  // Helper function for use in |parseBaseName| and
+  // |parseTlangInTransformExtension|.  Do not use this directly!
+  static Result<Ok, ParserError> internalParseBaseName(LocaleParser& ts,
+                                                       Locale& tag, Token& tok);
+
+  // Parse the `unicode_language_id` production, i.e. the
+  // language/script/region/variants portion of a locale, into |tag|.
+  // |tok| must be the current token.
+  static Result<Ok, ParserError> parseBaseName(LocaleParser& ts, Locale& tag,
+                                               Token& tok) {
+    return internalParseBaseName(ts, tag, tok);
+  }
+
+  // Parse the `tlang` production within a parsed 't' transform extension.
+  // The precise requirements for "previously parsed" are:
+  //
+  //   * the input begins from current token |tok| with a valid `tlang`
+  //   * the `tlang` is wholly lowercase (*not* canonical case)
+  //   * variant subtags in the `tlang` may contain duplicates and be
+  //     unordered
+  //
+  // Return an error on internal failure. Otherwise, return a success value. If
+  // there was no `tlang`, then |tag.language().missing()|. But if there was a
+  // `tlang`, then |tag| is filled with subtags exactly as they appeared in the
+  // parse input.
+  static Result<Ok, ParserError> parseTlangInTransformExtension(
+      LocaleParser& ts, Locale& tag, Token& tok) {
+    MOZ_ASSERT(ts.isLanguage(tok));
+    return internalParseBaseName(ts, tag, tok);
+  }
+
+  friend class Locale;
+
+  class Range final {
+    size_t begin_;
+    size_t length_;
+
+   public:
+    Range(size_t begin, size_t length) : begin_(begin), length_(length) {}
+
+    template <typename T>
+    T* begin(T* ptr) const {
+      return ptr + begin_;
+    }
+
+    size_t length() const { return length_; }
+  };
+
+  using TFieldVector = Vector<Range, 8>;
+  using AttributesVector = Vector<Range, 8>;
+  using KeywordsVector = Vector<Range, 8>;
+
+  // Parse |extension|, which must be a validated, fully lowercase
+  // `transformed_extensions` subtag, and fill |tag| and |fields| from the
+  // `tlang` and `tfield` components. Data in |tag| is lowercase, consistent
+  // with |extension|.
+  static Result<Ok, ParserError> parseTransformExtension(
+      mozilla::Span<const char> extension, Locale& tag, TFieldVector& fields);
+
+  // Parse |extension|, which must be a validated, fully lowercase
+  // `unicode_locale_extensions` subtag, and fill |attributes| and |keywords|
+  // from the `attribute` and `keyword` components.
+  static Result<Ok, ParserError> parseUnicodeExtension(
+      mozilla::Span<const char> extension, AttributesVector& attributes,
+      KeywordsVector& keywords);
+
+ public:
+  // Parse the input string as a locale.
+  static Result<Ok, ParserError> tryParse(Span<const char> locale, Locale& tag);
+
+  // Parse the input string as the base-name parts (language, script, region,
+  // variants) of a locale.
+  static Result<Ok, ParserError> tryParseBaseName(Span<const char> locale,
+                                                  Locale& tag);
+
+  // Return Ok() iff |extension| can be parsed as a Unicode extension subtag.
+  static Result<Ok, ParserError> canParseUnicodeExtension(
+      Span<const char> extension);
+
+  // Return Ok() iff |unicodeType| can be parsed as a Unicode extension type.
+  static Result<Ok, ParserError> canParseUnicodeExtensionType(
+      Span<const char> unicodeType);
 };
 
+MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(LocaleParser::TokenKind)
+
 }  // namespace mozilla::intl
 
-#endif
+#endif /* intl_components_Locale_h */
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/docs/icu.rst firefox-trunk-95.0~a1~hg20211020r596404/intl/docs/icu.rst
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/docs/icu.rst	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/docs/icu.rst	2021-10-20 19:28:21.000000000 +0000
@@ -230,7 +230,7 @@
    $ export PYTHONPATH="$topsrcdir/third_party/python/PyYAML/lib3/"
    $ python3 ./make_intl_data.py langtags
 
-The CLDR version used will be printed in the header of CLDR-sensitive generated files. For example, ``js/src/builtin/intl/LanguageTagGenerated.cpp`` currently begins with:
+The CLDR version used will be printed in the header of CLDR-sensitive generated files. For example, ``intl/components/src/LocaleGenerated.cpp`` currently begins with:
 
 .. code:: cpp
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/LocaleService.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/LocaleService.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/LocaleService.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/LocaleService.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -303,8 +303,8 @@
 
 bool LocaleService::LanguagesMatch(const nsACString& aRequested,
                                    const nsACString& aAvailable) {
-  Locale requested = Locale(aRequested);
-  Locale available = Locale(aAvailable);
+  MozLocale requested = MozLocale(aRequested);
+  MozLocale available = MozLocale(aAvailable);
   return requested.GetLanguage().Equals(available.GetLanguage());
 }
 
@@ -528,7 +528,7 @@
   }
 
   MOZ_ASSERT(
-      aDefaultLocale.IsEmpty() || Locale(aDefaultLocale).IsWellFormed(),
+      aDefaultLocale.IsEmpty() || MozLocale(aDefaultLocale).IsWellFormed(),
       "If specified, default locale must be a well-formed BCP47 language tag.");
 
   if (aStrategy == kLangNegStrategyLookup && aDefaultLocale.IsEmpty()) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/MozLocale.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/MozLocale.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/MozLocale.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/MozLocale.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -8,43 +8,39 @@
 using namespace mozilla::intl;
 using namespace mozilla::intl::ffi;
 
-/**
- * Note: The file name is `MozLocale` to avoid compilation problems on
- * case-insensitive Windows. The class name is `Locale`.
- */
-Locale::Locale(const nsACString& aLocale)
+MozLocale::MozLocale(const nsACString& aLocale)
     : mRaw(unic_langid_new(&aLocale, &mIsWellFormed)) {}
 
-const nsCString Locale::AsString() const {
+const nsCString MozLocale::AsString() const {
   nsCString tag;
   unic_langid_as_string(mRaw.get(), &tag);
   return tag;
 }
 
-const nsDependentCSubstring Locale::GetLanguage() const {
+const nsDependentCSubstring MozLocale::GetLanguage() const {
   nsDependentCSubstring sub;
   unic_langid_get_language(mRaw.get(), &sub);
   return sub;
 }
 
-const nsDependentCSubstring Locale::GetScript() const {
+const nsDependentCSubstring MozLocale::GetScript() const {
   nsDependentCSubstring sub;
   unic_langid_get_script(mRaw.get(), &sub);
   return sub;
 }
 
-const nsDependentCSubstring Locale::GetRegion() const {
+const nsDependentCSubstring MozLocale::GetRegion() const {
   nsDependentCSubstring sub;
   unic_langid_get_region(mRaw.get(), &sub);
   return sub;
 }
 
-void Locale::GetVariants(nsTArray<nsCString>& aRetVal) const {
+void MozLocale::GetVariants(nsTArray<nsCString>& aRetVal) const {
   unic_langid_get_variants(mRaw.get(), &aRetVal);
 }
 
-bool Locale::Matches(const Locale& aOther, bool aThisRange,
-                     bool aOtherRange) const {
+bool MozLocale::Matches(const MozLocale& aOther, bool aThisRange,
+                        bool aOtherRange) const {
   if (!IsWellFormed() || !aOther.IsWellFormed()) {
     return false;
   }
@@ -52,8 +48,8 @@
   return unic_langid_matches(mRaw.get(), aOther.Raw(), aThisRange, aOtherRange);
 }
 
-bool Locale::Maximize() { return unic_langid_maximize(mRaw.get()); }
+bool MozLocale::Maximize() { return unic_langid_maximize(mRaw.get()); }
 
-void Locale::ClearVariants() { unic_langid_clear_variants(mRaw.get()); }
+void MozLocale::ClearVariants() { unic_langid_clear_variants(mRaw.get()); }
 
-void Locale::ClearRegion() { unic_langid_clear_region(mRaw.get()); }
+void MozLocale::ClearRegion() { unic_langid_clear_region(mRaw.get()); }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/MozLocale.h firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/MozLocale.h
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/MozLocale.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/MozLocale.h	2021-10-20 19:28:23.000000000 +0000
@@ -41,17 +41,13 @@
  *
  * Example:
  *
- *     Locale loc = Locale("de-at");
+ *     MozLocale loc = MozLocale("de-at");
  *
  *     ASSERT_TRUE(loc.GetLanguage().Equals("de"));
  *     ASSERT_TRUE(loc.GetScript().IsEmpty());
  *     ASSERT_TRUE(loc.GetRegion().Equals("AT")); // canonicalized to upper case
- *
- *
- * Note: The file name is `MozLocale` to avoid compilation problems on
- * case-insensitive Windows. The class name is `Locale`.
  */
-class Locale {
+class MozLocale {
  public:
   /**
    * The constructor expects the input to be a well-formed BCP47-style locale
@@ -66,8 +62,9 @@
    * created with its flag `mWellFormed` set to false which will make the Locale
    * never match.
    */
-  explicit Locale(const nsACString& aLocale);
-  explicit Locale(const char* aLocale) : Locale(nsDependentCString(aLocale)){};
+  explicit MozLocale(const nsACString& aLocale);
+  explicit MozLocale(const char* aLocale)
+      : MozLocale(nsDependentCString(aLocale)){};
 
   const nsDependentCSubstring GetLanguage() const;
   const nsDependentCSubstring GetScript() const;
@@ -102,7 +99,8 @@
    * locale is being treated as a range and matches any region field
    * value including "US" of the other locale.
    */
-  bool Matches(const Locale& aOther, bool aThisRange, bool aOtherRange) const;
+  bool Matches(const MozLocale& aOther, bool aThisRange,
+               bool aOtherRange) const;
 
   /**
    * This operation uses CLDR data to build a more specific version
@@ -133,14 +131,14 @@
   /**
    * Compares two locales expecting all fields to match each other.
    */
-  bool operator==(const Locale& aOther) {
+  bool operator==(const MozLocale& aOther) {
     // Note: non-well-formed Locale objects are never
     // treated as equal to anything
     // (even other non-well-formed ones).
     return Matches(aOther, false, false);
   }
 
-  Locale(Locale&& aOther)
+  MozLocale(MozLocale&& aOther)
       : mIsWellFormed(aOther.mIsWellFormed), mRaw(std::move(aOther.mRaw)) {}
 
   ffi::LanguageIdentifier* Raw() { return mRaw.get(); }
@@ -157,6 +155,6 @@
 }  // namespace intl
 }  // namespace mozilla
 
-MOZ_DECLARE_RELOCATE_USING_MOVE_CONSTRUCTOR(mozilla::intl::Locale)
+MOZ_DECLARE_RELOCATE_USING_MOVE_CONSTRUCTOR(mozilla::intl::MozLocale)
 
 #endif /* mozilla_intl_MozLocale_h__ */
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/nsLanguageAtomService.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/nsLanguageAtomService.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/nsLanguageAtomService.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/nsLanguageAtomService.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -187,7 +187,7 @@
       langStr.Truncate(start.get() - langStr.BeginReading());
     }
 
-    Locale loc(langStr);
+    MozLocale loc(langStr);
     if (loc.IsWellFormed()) {
       // Fill in script subtag if not present.
       if (loc.GetScript().IsEmpty()) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/OSPreferences.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/OSPreferences.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/OSPreferences.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/OSPreferences.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -12,10 +12,11 @@
 #include "OSPreferences.h"
 
 #include "mozilla/ClearOnShutdown.h"
+#include "mozilla/intl/DateTimePatternGenerator.h"
+#include "mozilla/intl/DateTimeFormat.h"
+#include "mozilla/Result.h"
 #include "mozilla/Services.h"
 #include "nsIObserverService.h"
-#include "unicode/udat.h"
-#include "unicode/udatpg.h"
 
 using namespace mozilla::intl;
 
@@ -97,60 +98,53 @@
 }
 
 /**
- * This method retrieves from ICU the best pattern for a given date/time style.
+ * This method retrieves from mozilla::intl the best pattern for a given
+ * date/time style.
  */
 bool OSPreferences::GetDateTimePatternForStyle(DateTimeFormatStyle aDateStyle,
                                                DateTimeFormatStyle aTimeStyle,
                                                const nsACString& aLocale,
                                                nsACString& aRetVal) {
-  UDateFormatStyle timeStyle = UDAT_NONE;
-  UDateFormatStyle dateStyle = UDAT_NONE;
+  DateTimeFormat::StyleBag style;
 
   switch (aTimeStyle) {
-    case DateTimeFormatStyle::None:
-      timeStyle = UDAT_NONE;
-      break;
     case DateTimeFormatStyle::Short:
-      timeStyle = UDAT_SHORT;
+      style.time = Some(DateTimeFormat::Style::Short);
       break;
     case DateTimeFormatStyle::Medium:
-      timeStyle = UDAT_MEDIUM;
+      style.time = Some(DateTimeFormat::Style::Medium);
       break;
     case DateTimeFormatStyle::Long:
-      timeStyle = UDAT_LONG;
+      style.time = Some(DateTimeFormat::Style::Long);
       break;
     case DateTimeFormatStyle::Full:
-      timeStyle = UDAT_FULL;
+      style.time = Some(DateTimeFormat::Style::Full);
       break;
+    case DateTimeFormatStyle::None:
     case DateTimeFormatStyle::Invalid:
-      timeStyle = UDAT_NONE;
+      // Do nothing.
       break;
   }
 
   switch (aDateStyle) {
-    case DateTimeFormatStyle::None:
-      dateStyle = UDAT_NONE;
-      break;
     case DateTimeFormatStyle::Short:
-      dateStyle = UDAT_SHORT;
+      style.date = Some(DateTimeFormat::Style::Short);
       break;
     case DateTimeFormatStyle::Medium:
-      dateStyle = UDAT_MEDIUM;
+      style.date = Some(DateTimeFormat::Style::Medium);
       break;
     case DateTimeFormatStyle::Long:
-      dateStyle = UDAT_LONG;
+      style.date = Some(DateTimeFormat::Style::Long);
       break;
     case DateTimeFormatStyle::Full:
-      dateStyle = UDAT_FULL;
+      style.date = Some(DateTimeFormat::Style::Full);
       break;
+    case DateTimeFormatStyle::None:
     case DateTimeFormatStyle::Invalid:
-      dateStyle = UDAT_NONE;
+      // Do nothing.
       break;
   }
 
-  const int32_t kPatternMax = 160;
-  UChar pattern[kPatternMax];
-
   nsAutoCString locale;
   if (aLocale.IsEmpty()) {
     AutoTArray<nsCString, 10> regionalPrefsLocales;
@@ -160,24 +154,33 @@
     locale.Assign(aLocale);
   }
 
-  UErrorCode status = U_ZERO_ERROR;
-  UDateFormat* df = udat_open(timeStyle, dateStyle, locale.get(), nullptr, -1,
-                              nullptr, -1, &status);
-  if (U_FAILURE(status)) {
+  auto genResult =
+      DateTimePatternGenerator::TryCreate(PromiseFlatCString(aLocale).get());
+  if (genResult.isErr()) {
     return false;
   }
+  auto generator = genResult.unwrap();
 
-  int32_t patsize = udat_toPattern(df, false, pattern, kPatternMax, &status);
-  udat_close(df);
-  if (U_FAILURE(status)) {
+  auto dfResult = DateTimeFormat::TryCreateFromStyle(
+      MakeStringSpan(locale.get()), style, generator.get(), Nothing());
+  if (dfResult.isErr()) {
     return false;
   }
-  aRetVal = NS_ConvertUTF16toUTF8(pattern, patsize);
+  auto df = dfResult.unwrap();
+
+  DateTimeFormat::PatternVector pattern;
+  auto patternResult = df->GetPattern(pattern);
+  if (patternResult.isErr()) {
+    return false;
+  }
+
+  aRetVal = NS_ConvertUTF16toUTF8(pattern.begin(), pattern.length());
   return true;
 }
 
 /**
- * This method retrieves from ICU the best skeleton for a given date/time style.
+ * This method retrieves from mozilla::intl the best skeleton for a given
+ * date/time style.
  *
  * This is useful for cases where an OS does not provide its own patterns,
  * but provide ability to customize the skeleton, like alter hourCycle setting.
@@ -193,20 +196,21 @@
     return false;
   }
 
-  nsAutoString patternAsUtf16 = NS_ConvertUTF8toUTF16(pattern);
-
-  const int32_t kSkeletonMax = 160;
-  UChar skeleton[kSkeletonMax];
+  auto genResult =
+      DateTimePatternGenerator::TryCreate(PromiseFlatCString(aLocale).get());
+  if (genResult.isErr()) {
+    return false;
+  }
 
-  UErrorCode status = U_ZERO_ERROR;
-  int32_t skelsize = udatpg_getSkeleton(
-      nullptr, (const UChar*)patternAsUtf16.BeginReading(),
-      patternAsUtf16.Length(), skeleton, kSkeletonMax, &status);
-  if (U_FAILURE(status)) {
+  nsAutoString patternAsUtf16 = NS_ConvertUTF8toUTF16(pattern);
+  DateTimeFormat::SkeletonVector skeleton;
+  auto generator = genResult.unwrap();
+  auto skeletonResult = generator->GetSkeleton(patternAsUtf16, skeleton);
+  if (skeletonResult.isErr()) {
     return false;
   }
 
-  aRetVal = NS_ConvertUTF16toUTF8(skeleton, skelsize);
+  aRetVal = NS_ConvertUTF16toUTF8(skeleton.begin(), skeleton.length());
   return true;
 }
 
@@ -344,34 +348,22 @@
                                           nsACString& aRetVal) {
   aRetVal.Truncate();
 
-  UErrorCode status = U_ZERO_ERROR;
-  UDateTimePatternGenerator* pg =
-      udatpg_open(PromiseFlatCString(aLocale).get(), &status);
-  if (U_FAILURE(status)) {
+  auto genResult =
+      DateTimePatternGenerator::TryCreate(PromiseFlatCString(aLocale).get());
+  if (genResult.isErr()) {
     return false;
   }
 
   nsAutoString skeletonAsUtf16 = NS_ConvertUTF8toUTF16(aSkeleton);
-  nsAutoString result;
-
-  int32_t len =
-      udatpg_getBestPattern(pg, (const UChar*)skeletonAsUtf16.BeginReading(),
-                            skeletonAsUtf16.Length(), nullptr, 0, &status);
-  if (status == U_BUFFER_OVERFLOW_ERROR) {  // expected
-    result.SetLength(len);
-    status = U_ZERO_ERROR;
-    udatpg_getBestPattern(pg, (const UChar*)skeletonAsUtf16.BeginReading(),
-                          skeletonAsUtf16.Length(),
-                          (UChar*)result.BeginWriting(), len, &status);
-  }
-
-  udatpg_close(pg);
-
-  if (U_SUCCESS(status)) {
-    aRetVal = NS_ConvertUTF16toUTF8(result);
+  DateTimeFormat::PatternVector pattern;
+  auto generator = genResult.unwrap();
+  auto patternResult = generator->GetBestPattern(skeletonAsUtf16, pattern);
+  if (patternResult.isErr()) {
+    return false;
   }
 
-  return U_SUCCESS(status);
+  aRetVal = NS_ConvertUTF16toUTF8(pattern.begin(), pattern.length());
+  return true;
 }
 
 /**
@@ -385,8 +377,6 @@
  */
 bool OSPreferences::GetDateTimeConnectorPattern(const nsACString& aLocale,
                                                 nsACString& aRetVal) {
-  bool result = false;
-
   // Check for a valid override pref and use that if present.
   nsAutoCString value;
   nsresult nr = Preferences::GetCString(
@@ -397,19 +387,16 @@
     return true;
   }
 
-  UErrorCode status = U_ZERO_ERROR;
-  UDateTimePatternGenerator* pg =
-      udatpg_open(PromiseFlatCString(aLocale).get(), &status);
-  if (U_SUCCESS(status)) {
-    int32_t resultSize;
-    const UChar* value = udatpg_getDateTimeFormat(pg, &resultSize);
-    MOZ_ASSERT(resultSize >= 0);
-
-    aRetVal = NS_ConvertUTF16toUTF8(value, resultSize);
-    result = true;
+  auto genResult =
+      DateTimePatternGenerator::TryCreate(PromiseFlatCString(aLocale).get());
+  if (genResult.isErr()) {
+    return false;
   }
-  udatpg_close(pg);
-  return result;
+
+  auto generator = genResult.unwrap();
+  Span<const char16_t> result = generator->GetPlaceholderPattern();
+  aRetVal = NS_ConvertUTF16toUTF8(result.data(), result.size());
+  return true;
 }
 
 /**
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/Quotes.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/Quotes.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/Quotes.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/Quotes.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -54,7 +54,7 @@
   // Try parsing lang as a Locale (which will also canonicalize case of the
   // subtags), then see if we can match it with region or script subtags,
   // if present, or just the primary language tag.
-  Locale loc(langStr);
+  MozLocale loc(langStr);
   if (!loc.IsWellFormed()) {
     return nullptr;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/tests/gtest/TestLocaleService.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/tests/gtest/TestLocaleService.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/tests/gtest/TestLocaleService.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/tests/gtest/TestLocaleService.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -138,7 +138,7 @@
   LocaleService::GetInstance()->GetDefaultLocale(locStr);
 
   ASSERT_FALSE(locStr.IsEmpty());
-  ASSERT_TRUE(Locale(locStr).IsWellFormed());
+  ASSERT_TRUE(MozLocale(locStr).IsWellFormed());
 }
 
 TEST(Intl_Locale_LocaleService, IsAppLocaleRTL)
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/tests/gtest/TestMozLocale.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/tests/gtest/TestMozLocale.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/tests/gtest/TestMozLocale.cpp	2021-10-17 14:42:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/tests/gtest/TestMozLocale.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -8,24 +8,24 @@
 
 using namespace mozilla::intl;
 
-TEST(Intl_Locale_Locale, Locale)
+TEST(Intl_MozLocale_MozLocale, MozLocale)
 {
-  Locale loc = Locale("en-US");
+  MozLocale loc = MozLocale("en-US");
 
   ASSERT_TRUE(loc.GetLanguage().Equals("en"));
   ASSERT_TRUE(loc.GetRegion().Equals("US"));
 }
 
-TEST(Intl_Locale_Locale, AsString)
+TEST(Intl_MozLocale_MozLocale, AsString)
 {
-  Locale loc = Locale("ja-jp-windows");
+  MozLocale loc = MozLocale("ja-jp-windows");
 
   ASSERT_TRUE(loc.AsString().Equals("ja-JP-windows"));
 }
 
-TEST(Intl_Locale_Locale, GetSubTags)
+TEST(Intl_MozLocale_MozLocale, GetSubTags)
 {
-  Locale loc = Locale("en-latn-us-macos");
+  MozLocale loc = MozLocale("en-latn-us-macos");
 
   ASSERT_TRUE(loc.GetLanguage().Equals("en"));
   ASSERT_TRUE(loc.GetScript().Equals("Latn"));
@@ -37,32 +37,32 @@
   ASSERT_TRUE(variants[0].Equals("macos"));
 }
 
-TEST(Intl_Locale_Locale, Matches)
+TEST(Intl_MozLocale_MozLocale, Matches)
 {
-  Locale loc = Locale("en-US");
+  MozLocale loc = MozLocale("en-US");
 
-  Locale loc2 = Locale("en-GB");
+  MozLocale loc2 = MozLocale("en-GB");
   ASSERT_FALSE(loc == loc2);
 
-  Locale loc3 = Locale("en-US");
+  MozLocale loc3 = MozLocale("en-US");
   ASSERT_TRUE(loc == loc3);
 
-  Locale loc4 = Locale("En_us");
+  MozLocale loc4 = MozLocale("En_us");
   ASSERT_TRUE(loc == loc4);
 }
 
-TEST(Intl_Locale_Locale, MatchesRange)
+TEST(Intl_MozLocale_MozLocale, MatchesRange)
 {
-  Locale loc = Locale("en-US");
+  MozLocale loc = MozLocale("en-US");
 
-  Locale loc2 = Locale("en-Latn-US");
+  MozLocale loc2 = MozLocale("en-Latn-US");
   ASSERT_FALSE(loc == loc2);
   ASSERT_TRUE(loc.Matches(loc2, true, false));
   ASSERT_FALSE(loc.Matches(loc2, false, true));
   ASSERT_FALSE(loc.Matches(loc2, false, false));
   ASSERT_TRUE(loc.Matches(loc2, true, true));
 
-  Locale loc3 = Locale("en");
+  MozLocale loc3 = MozLocale("en");
   ASSERT_FALSE(loc == loc3);
   ASSERT_TRUE(loc.Matches(loc3, false, true));
   ASSERT_FALSE(loc.Matches(loc3, true, false));
@@ -70,46 +70,46 @@
   ASSERT_TRUE(loc.Matches(loc3, true, true));
 }
 
-TEST(Intl_Locale_Locale, Variants)
+TEST(Intl_MozLocale_MozLocale, Variants)
 {
-  Locale loc = Locale("en-US-UniFon-BasicEng");
+  MozLocale loc = MozLocale("en-US-UniFon-BasicEng");
 
   // Make sure that we canonicalize and sort variant tags
   ASSERT_TRUE(loc.AsString().Equals("en-US-basiceng-unifon"));
 }
 
-TEST(Intl_Locale_Locale, InvalidLocale)
+TEST(Intl_MozLocale_MozLocale, InvalidMozLocale)
 {
-  Locale loc = Locale("en-verylongsubtag");
+  MozLocale loc = MozLocale("en-verylongsubtag");
   ASSERT_FALSE(loc.IsWellFormed());
 
-  Locale loc2 = Locale("p-te");
+  MozLocale loc2 = MozLocale("p-te");
   ASSERT_FALSE(loc2.IsWellFormed());
 }
 
-TEST(Intl_Locale_Locale, ClearRegion)
+TEST(Intl_MozLocale_MozLocale, ClearRegion)
 {
-  Locale loc = Locale("en-US");
+  MozLocale loc = MozLocale("en-US");
   loc.ClearRegion();
   ASSERT_TRUE(loc.AsString().Equals("en"));
 }
 
-TEST(Intl_Locale_Locale, ClearVariants)
+TEST(Intl_MozLocale_MozLocale, ClearVariants)
 {
-  Locale loc = Locale("en-US-windows");
+  MozLocale loc = MozLocale("en-US-windows");
   loc.ClearVariants();
   ASSERT_TRUE(loc.AsString().Equals("en-US"));
 }
 
-TEST(Intl_Locale_Locale, jaJPmac)
+TEST(Intl_MozLocale_MozLocale, jaJPmac)
 {
-  Locale loc = Locale("ja-JP-mac");
+  MozLocale loc = MozLocale("ja-JP-mac");
   ASSERT_TRUE(loc.AsString().Equals("ja-JP-macos"));
 }
 
-TEST(Intl_Locale_Locale, Maximize)
+TEST(Intl_MozLocale_MozLocale, Maximize)
 {
-  Locale loc = Locale("en");
+  MozLocale loc = MozLocale("en");
 
   ASSERT_TRUE(loc.GetLanguage().Equals("en"));
   ASSERT_TRUE(loc.GetScript().IsEmpty());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/windows/OSPreferences_win.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/windows/OSPreferences_win.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/locale/windows/OSPreferences_win.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/locale/windows/OSPreferences_win.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -64,9 +64,9 @@
                 // language code with no region subtag, but the
                 // GlobalizationPreferences API may give us one (e.g. "ja").
                 // So if there's no hyphen in the string at this point, we use
-                // Locale::Maximize to get a suitable region code to
+                // MozLocale::Maximize to get a suitable region code to
                 // go with it.
-                Locale locale(loc);
+                MozLocale locale(loc);
                 if (locale.Maximize() && !locale.GetRegion().IsEmpty()) {
                   loc.Append('-');
                   loc.Append(locale.GetRegion());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/lwbrk/LineBreaker.cpp firefox-trunk-95.0~a1~hg20211020r596404/intl/lwbrk/LineBreaker.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/lwbrk/LineBreaker.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/lwbrk/LineBreaker.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -370,11 +370,12 @@
   return (u == U_HYPHEN || u == 0x2010 ||  // HYPHEN
           u == 0x2012 ||                   // FIGURE DASH
           u == 0x2013 ||                   // EN DASH
-#if ANDROID
-          /* Bug 1647377: On Android, we don't have a "platform" backend
-           * that supports Tibetan (nsRuleBreaker.cpp only knows about
-           * Thai), so instead we just treat the TSHEG like a hyphen to
-           * provide basic line-breaking possibilities.
+#if ANDROID || XP_WIN
+          /* Bug 1647377: On Android and Windows, we don't have a "platform"
+           * backend that supports Tibetan (nsRuleBreaker.cpp only knows about
+           * Thai, and ScriptBreak doesn't handle Tibetan well either), so
+           * instead we just treat the TSHEG like a hyphen to provide basic
+           * line-breaking possibilities.
            */
           u == 0x0F0B ||  // TIBETAN MARK INTERSYLLABIC TSHEG
 #endif
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/intl/lwbrk/LineBreaker.h firefox-trunk-95.0~a1~hg20211020r596404/intl/lwbrk/LineBreaker.h
--- firefox-trunk-95.0~a1~hg20211017r596111/intl/lwbrk/LineBreaker.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/intl/lwbrk/LineBreaker.h	2021-10-20 19:28:23.000000000 +0000
@@ -76,8 +76,8 @@
 
 static inline bool NS_NeedsPlatformNativeHandling(char16_t aChar) {
   return
-#if ANDROID  // Bug 1647377: no "platform native" support for Tibetan;
-             // better to just use our class-based breaker.
+#if ANDROID || XP_WIN // Bug 1647377/1736393: no "platform native" support for
+                      // Tibetan; better to just use our class-based breaker.
       (0x0e01 <= aChar && aChar <= 0x0eff) ||  // Thai, Lao
 #else
       (0x0e01 <= aChar && aChar <= 0x0fff) ||  // Thai, Lao, Tibetan
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/BackgroundParentImpl.cpp firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/BackgroundParentImpl.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/BackgroundParentImpl.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/BackgroundParentImpl.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -51,6 +51,7 @@
 #include "mozilla/dom/WebAuthnTransactionParent.h"
 #include "mozilla/dom/cache/ActorUtils.h"
 #include "mozilla/dom/indexedDB/ActorsParent.h"
+#include "mozilla/dom/locks/LockManagerParent.h"
 #include "mozilla/dom/localstorage/ActorsParent.h"
 #include "mozilla/dom/network/UDPSocketParent.h"
 #include "mozilla/dom/quota/ActorsParent.h"
@@ -1443,6 +1444,13 @@
   return true;
 }
 
+already_AddRefed<dom::locks::PLockManagerParent>
+BackgroundParentImpl::AllocPLockManagerParent(
+    const ContentPrincipalInfo& aPrincipalInfo, const nsID& aClientId) {
+  return MakeAndAddRef<mozilla::dom::locks::LockManagerParent>(aPrincipalInfo,
+                                                               aClientId);
+}
+
 PParentToChildStreamParent*
 BackgroundParentImpl::SendPParentToChildStreamConstructor(
     PParentToChildStreamParent* aActor) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/BackgroundParentImpl.h firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/BackgroundParentImpl.h
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/BackgroundParentImpl.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/BackgroundParentImpl.h	2021-10-20 19:28:22.000000000 +0000
@@ -11,8 +11,7 @@
 #include "mozilla/ipc/InputStreamUtils.h"
 #include "mozilla/ipc/PBackgroundParent.h"
 
-namespace mozilla {
-namespace ipc {
+namespace mozilla::ipc {
 
 // Instances of this class should never be created directly. This class is meant
 // to be inherited in BackgroundImpl.
@@ -420,9 +419,11 @@
   AllocPWebSocketConnectionParent(const uint32_t& aListenerId) override;
   mozilla::ipc::IPCResult RecvPWebSocketConnectionConstructor(
       PWebSocketConnectionParent* actor, const uint32_t& aListenerId) override;
+
+  already_AddRefed<PLockManagerParent> AllocPLockManagerParent(
+      const ContentPrincipalInfo& aPrincipalInfo, const nsID& aClientId) final;
 };
 
-}  // namespace ipc
-}  // namespace mozilla
+}  // namespace mozilla::ipc
 
 #endif  // mozilla_ipc_backgroundparentimpl_h__
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/Endpoint.cpp firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/Endpoint.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/Endpoint.cpp	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/Endpoint.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -0,0 +1,148 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/ipc/Endpoint.h"
+#include "chrome/common/ipc_message.h"
+#include "mozilla/ipc/IPDLParamTraits.h"
+#include "nsThreadUtils.h"
+#include "mozilla/ipc/ProtocolMessageUtils.h"
+
+namespace mozilla::ipc {
+
+UntypedManagedEndpoint::UntypedManagedEndpoint(IProtocol* aActor)
+    : mInner(Some(Inner{
+          /* mOtherSide */ aActor->GetWeakLifecycleProxy(),
+          /* mToplevel */ nullptr,
+          aActor->Id(),
+          aActor->GetProtocolId(),
+          aActor->Manager()->Id(),
+          aActor->Manager()->GetProtocolId(),
+      })) {}
+
+UntypedManagedEndpoint::~UntypedManagedEndpoint() {
+  if (!IsValid()) {
+    return;
+  }
+
+  if (mInner->mOtherSide) {
+    // If this ManagedEndpoint was never sent over IPC, deliver a fake
+    // MANAGED_ENDPOINT_DROPPED_MESSAGE_TYPE message directly to the other side
+    // actor.
+    mInner->mOtherSide->ActorEventTarget()->Dispatch(NS_NewRunnableFunction(
+        "~ManagedEndpoint (Local)",
+        [otherSide = mInner->mOtherSide, id = mInner->mId] {
+          if (IProtocol* actor = otherSide->Get(); actor && actor->CanRecv()) {
+            MOZ_DIAGNOSTIC_ASSERT(actor->Id() == id, "Wrong Actor?");
+            RefPtr<ActorLifecycleProxy> strongProxy(actor->GetLifecycleProxy());
+            strongProxy->Get()->OnMessageReceived(
+                IPC::Message(id, MANAGED_ENDPOINT_DROPPED_MESSAGE_TYPE));
+          }
+        }));
+  } else if (mInner->mToplevel) {
+    // If it was sent over IPC, we'll need to send the message to the sending
+    // side. Let's send the message async.
+    mInner->mToplevel->ActorEventTarget()->Dispatch(NS_NewRunnableFunction(
+        "~ManagedEndpoint (Remote)",
+        [toplevel = mInner->mToplevel, id = mInner->mId] {
+          if (IProtocol* actor = toplevel->Get();
+              actor && actor->CanSend() && actor->GetIPCChannel()) {
+            actor->GetIPCChannel()->Send(MakeUnique<IPC::Message>(
+                id, MANAGED_ENDPOINT_DROPPED_MESSAGE_TYPE));
+          }
+        }));
+  }
+}
+
+bool UntypedManagedEndpoint::BindCommon(IProtocol* aActor,
+                                        IProtocol* aManager) {
+  MOZ_ASSERT(aManager);
+  if (!mInner) {
+    NS_WARNING("Cannot bind to invalid endpoint");
+    return false;
+  }
+
+  // Perform thread assertions.
+  if (mInner->mToplevel) {
+    MOZ_DIAGNOSTIC_ASSERT(
+        mInner->mToplevel->ActorEventTarget()->IsOnCurrentThread());
+    MOZ_DIAGNOSTIC_ASSERT(aManager->ToplevelProtocol() ==
+                          mInner->mToplevel->Get());
+  }
+
+  if (NS_WARN_IF(aManager->Id() != mInner->mManagerId) ||
+      NS_WARN_IF(aManager->GetProtocolId() != mInner->mManagerType) ||
+      NS_WARN_IF(aActor->GetProtocolId() != mInner->mType)) {
+    MOZ_ASSERT_UNREACHABLE("Actor and manager do not match Endpoint");
+    return false;
+  }
+
+  if (!aManager->CanSend() || !aManager->GetIPCChannel()) {
+    NS_WARNING("Manager cannot send");
+    return false;
+  }
+
+  int32_t id = mInner->mId;
+  mInner.reset();
+
+  // Our typed caller will insert the actor into the managed container.
+  aActor->SetManagerAndRegister(aManager, id);
+
+  aManager->GetIPCChannel()->Send(
+      MakeUnique<IPC::Message>(id, MANAGED_ENDPOINT_BOUND_MESSAGE_TYPE));
+  return true;
+}
+
+/* static */
+void IPDLParamTraits<UntypedManagedEndpoint>::Write(IPC::Message* aMsg,
+                                                    IProtocol* aActor,
+                                                    paramType&& aParam) {
+  bool isValid = aParam.mInner.isSome();
+  WriteIPDLParam(aMsg, aActor, isValid);
+  if (!isValid) {
+    return;
+  }
+
+  auto inner = std::move(*aParam.mInner);
+  aParam.mInner.reset();
+
+  MOZ_RELEASE_ASSERT(inner.mOtherSide, "Has not been sent over IPC yet");
+  MOZ_RELEASE_ASSERT(inner.mOtherSide->ActorEventTarget()->IsOnCurrentThread(),
+                     "Must be being sent from the correct thread");
+  MOZ_RELEASE_ASSERT(
+      inner.mOtherSide->Get() && inner.mOtherSide->Get()->ToplevelProtocol() ==
+                                     aActor->ToplevelProtocol(),
+      "Must be being sent over the same toplevel protocol");
+
+  WriteIPDLParam(aMsg, aActor, inner.mId);
+  WriteIPDLParam(aMsg, aActor, inner.mType);
+  WriteIPDLParam(aMsg, aActor, inner.mManagerId);
+  WriteIPDLParam(aMsg, aActor, inner.mManagerType);
+}
+
+/* static */
+bool IPDLParamTraits<UntypedManagedEndpoint>::Read(const IPC::Message* aMsg,
+                                                   PickleIterator* aIter,
+                                                   IProtocol* aActor,
+                                                   paramType* aResult) {
+  *aResult = UntypedManagedEndpoint{};
+  bool isValid = false;
+  if (!aActor || !ReadIPDLParam(aMsg, aIter, aActor, &isValid)) {
+    return false;
+  }
+  if (!isValid) {
+    return true;
+  }
+
+  aResult->mInner.emplace();
+  auto& inner = *aResult->mInner;
+  inner.mToplevel = aActor->ToplevelProtocol()->GetWeakLifecycleProxy();
+  return ReadIPDLParam(aMsg, aIter, aActor, &inner.mId) &&
+         ReadIPDLParam(aMsg, aIter, aActor, &inner.mType) &&
+         ReadIPDLParam(aMsg, aIter, aActor, &inner.mManagerId) &&
+         ReadIPDLParam(aMsg, aIter, aActor, &inner.mManagerType);
+}
+
+}  // namespace mozilla::ipc
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/Endpoint.h firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/Endpoint.h
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/Endpoint.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/Endpoint.h	2021-10-20 19:28:22.000000000 +0000
@@ -15,6 +15,7 @@
 #include "mozilla/Maybe.h"
 #include "mozilla/UniquePtr.h"
 #include "mozilla/ipc/MessageLink.h"
+#include "mozilla/ipc/ProtocolUtils.h"
 #include "mozilla/ipc/Transport.h"
 #include "mozilla/ipc/NodeController.h"
 #include "mozilla/ipc/ScopedPort.h"
@@ -118,6 +119,51 @@
   return NS_OK;
 }
 
+class UntypedManagedEndpoint {
+ public:
+  bool IsValid() const { return mInner.isSome(); }
+
+  UntypedManagedEndpoint(const UntypedManagedEndpoint&) = delete;
+  UntypedManagedEndpoint& operator=(const UntypedManagedEndpoint&) = delete;
+
+ protected:
+  UntypedManagedEndpoint() = default;
+  explicit UntypedManagedEndpoint(IProtocol* aActor);
+
+  UntypedManagedEndpoint(UntypedManagedEndpoint&& aOther) noexcept
+      : mInner(std::move(aOther.mInner)) {
+    aOther.mInner = Nothing();
+  }
+  UntypedManagedEndpoint& operator=(UntypedManagedEndpoint&& aOther) noexcept {
+    this->~UntypedManagedEndpoint();
+    new (this) UntypedManagedEndpoint(std::move(aOther));
+    return *this;
+  }
+
+  ~UntypedManagedEndpoint() noexcept;
+
+  bool BindCommon(IProtocol* aActor, IProtocol* aManager);
+
+ private:
+  friend struct IPDLParamTraits<UntypedManagedEndpoint>;
+
+  struct Inner {
+    // Pointers to the toplevel actor which will manage this connection. When
+    // created, only `mOtherSide` will be set, and will reference the
+    // toplevel actor which the other side is managed by. After being sent over
+    // IPC, only `mToplevel` will be set, and will be the toplevel actor for the
+    // channel which received the IPC message.
+    RefPtr<WeakActorLifecycleProxy> mOtherSide;
+    RefPtr<WeakActorLifecycleProxy> mToplevel;
+
+    int32_t mId = 0;
+    ProtocolId mType = LastMsgIndex;
+    int32_t mManagerId = 0;
+    ProtocolId mManagerType = LastMsgIndex;
+  };
+  Maybe<Inner> mInner;
+};
+
 /**
  * A managed endpoint represents one end of a partially initialized managed
  * IPDL actor. It is used for situations where the usual IPDL Constructor
@@ -140,39 +186,28 @@
  * a browser crash.
  */
 template <class PFooSide>
-class ManagedEndpoint {
+class ManagedEndpoint : public UntypedManagedEndpoint {
  public:
-  ManagedEndpoint() : mId(0) {}
-
-  ManagedEndpoint(const PrivateIPDLInterface&, int32_t aId) : mId(aId) {}
-
-  ManagedEndpoint(ManagedEndpoint&& aOther) : mId(aOther.mId) {
-    aOther.mId = 0;
+  ManagedEndpoint() = default;
+  ManagedEndpoint(ManagedEndpoint&&) noexcept = default;
+  ManagedEndpoint& operator=(ManagedEndpoint&&) noexcept = default;
+
+  ManagedEndpoint(const PrivateIPDLInterface&, IProtocol* aActor)
+      : UntypedManagedEndpoint(aActor) {}
+
+  bool Bind(const PrivateIPDLInterface&, PFooSide* aActor, IProtocol* aManager,
+            ManagedContainer<PFooSide>& aContainer) {
+    if (!BindCommon(aActor, aManager)) {
+      return false;
+    }
+    aContainer.Insert(aActor);
+    return true;
   }
 
-  ManagedEndpoint& operator=(ManagedEndpoint&& aOther) {
-    mId = aOther.mId;
-    aOther.mId = 0;
-    return *this;
+  // Only invalid ManagedEndpoints can be equal, as valid endpoints are unique.
+  bool operator==(const ManagedEndpoint& _o) const {
+    return !IsValid() && !_o.IsValid();
   }
-
-  bool IsValid() const { return mId != 0; }
-
-  Maybe<int32_t> ActorId() const { return IsValid() ? Some(mId) : Nothing(); }
-
-  bool operator==(const ManagedEndpoint& _o) const { return mId == _o.mId; }
-
- private:
-  friend struct IPC::ParamTraits<ManagedEndpoint<PFooSide>>;
-
-  ManagedEndpoint(const ManagedEndpoint&) = delete;
-  ManagedEndpoint& operator=(const ManagedEndpoint&) = delete;
-
-  // The routing ID for the to-be-created endpoint.
-  int32_t mId;
-
-  // XXX(nika): Might be nice to have other info for assertions?
-  // e.g. mManagerId, mManagerType, etc.
 };
 
 }  // namespace ipc
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/IPCMessageUtilsSpecializations.h firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/IPCMessageUtilsSpecializations.h
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/IPCMessageUtilsSpecializations.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/IPCMessageUtilsSpecializations.h	2021-10-20 19:28:22.000000000 +0000
@@ -382,6 +382,10 @@
 template <typename E, size_t N>
 struct ParamTraits<CopyableAutoTArray<E, N>> : ParamTraits<AutoTArray<E, N>> {};
 
+template <typename T>
+struct ParamTraits<mozilla::dom::Sequence<T>> : ParamTraits<FallibleTArray<T>> {
+};
+
 template <typename E, size_t N, typename AP>
 struct ParamTraits<mozilla::Vector<E, N, AP>> {
   typedef mozilla::Vector<E, N, AP> paramType;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/moz.build firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/moz.build
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/moz.build	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/moz.build	2021-10-20 19:28:22.000000000 +0000
@@ -161,6 +161,7 @@
     "BrowserProcessSubThread.cpp",
     "CrashReporterClient.cpp",
     "CrashReporterHost.cpp",
+    "Endpoint.cpp",
     "FileDescriptor.cpp",
     "FileDescriptorUtils.cpp",
     "IdleSchedulerChild.cpp",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/PBackground.ipdl firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/PBackground.ipdl
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/PBackground.ipdl	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/PBackground.ipdl	2021-10-20 19:28:22.000000000 +0000
@@ -36,6 +36,7 @@
 include protocol PFileCreator;
 include protocol PMessagePort;
 include protocol PCameras;
+include protocol PLockManager;
 include protocol PMIDIManager;
 include protocol PMIDIPort;
 include protocol PQuota;
@@ -105,6 +106,7 @@
   manages PHttpBackgroundChannel;
   manages PIdleScheduler;
   manages PRemoteLazyInputStream;
+  manages PLockManager;
   manages PMediaTransport;
   manages PRemoteWorker;
   manages PRemoteWorkerController;
@@ -282,6 +284,8 @@
 
   async PWebSocketConnection(uint32_t aListenerId);
 
+  async PLockManager(ContentPrincipalInfo aPrincipalInfo, nsID aClientId);
+
 child:
   async PCache();
   async PCacheStreamControl();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/ProtocolMessageUtils.h firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/ProtocolMessageUtils.h
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/ProtocolMessageUtils.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/ProtocolMessageUtils.h	2021-10-20 19:28:22.000000000 +0000
@@ -14,6 +14,7 @@
 #include "chrome/common/ipc_message_utils.h"
 #include "ipc/EnumSerializer.h"
 #include "mozilla/Assertions.h"
+#include "mozilla/ipc/Endpoint.h"
 #include "mozilla/ipc/ProtocolUtils.h"
 #include "mozilla/ipc/Transport.h"
 
@@ -39,6 +40,11 @@
                                         Channel::MODE_CLIENT> {};
 
 template <>
+struct ParamTraits<IPCMessageStart>
+    : ContiguousEnumSerializer<IPCMessageStart, IPCMessageStart(0),
+                               LastMsgIndex> {};
+
+template <>
 struct ParamTraits<mozilla::ipc::ActorHandle> {
   typedef mozilla::ipc::ActorHandle paramType;
 
@@ -83,32 +89,35 @@
   }
 };
 
-template <class PFooSide>
-struct ParamTraits<mozilla::ipc::ManagedEndpoint<PFooSide>> {
-  typedef mozilla::ipc::ManagedEndpoint<PFooSide> paramType;
+}  // namespace IPC
 
-  static void Write(Message* aMsg, const paramType& aParam) {
-    IPC::WriteParam(aMsg, aParam.mId);
-  }
+namespace mozilla::ipc {
 
-  static bool Read(const Message* aMsg, PickleIterator* aIter,
-                   paramType* aResult) {
-    MOZ_RELEASE_ASSERT(aResult->mId == 0);
+template <>
+struct IPDLParamTraits<UntypedManagedEndpoint> {
+  using paramType = UntypedManagedEndpoint;
 
-    if (!IPC::ReadParam(aMsg, aIter, &aResult->mId)) {
-      return false;
-    }
-    return true;
+  static void Write(IPC::Message* aMsg, IProtocol* aActor, paramType&& aParam);
+  static bool Read(const IPC::Message* aMsg, PickleIterator* aIter,
+                   IProtocol* aActor, paramType* aResult);
+};
+
+template <class PFooSide>
+struct IPDLParamTraits<ManagedEndpoint<PFooSide>> {
+  using paramType = ManagedEndpoint<PFooSide>;
+
+  static void Write(IPC::Message* aMsg, IProtocol* aActor, paramType&& aParam) {
+    IPDLParamTraits<UntypedManagedEndpoint>::Write(aMsg, aActor,
+                                                   std::move(aParam));
   }
 
-  static void Log(const paramType& aParam, std::wstring* aLog) {
-    aLog->append(StringPrintf(L"ManagedEndpoint"));
+  static bool Read(const IPC::Message* aMsg, PickleIterator* aIter,
+                   IProtocol* aActor, paramType* aResult) {
+    return IPDLParamTraits<UntypedManagedEndpoint>::Read(aMsg, aIter, aActor,
+                                                         aResult);
   }
 };
 
-}  // namespace IPC
-
-namespace mozilla::ipc {
 template <>
 struct IPDLParamTraits<FileDescriptor> {
   typedef FileDescriptor paramType;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/ProtocolUtils.cpp firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/ProtocolUtils.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/ProtocolUtils.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/ProtocolUtils.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -293,6 +293,10 @@
   return mProxy ? mProxy->Get() : nullptr;
 }
 
+WeakActorLifecycleProxy* IProtocol::GetWeakLifecycleProxy() {
+  return mLifecycleProxy ? mLifecycleProxy->GetWeakProxy() : nullptr;
+}
+
 IProtocol::~IProtocol() {
   // If the actor still has a lifecycle proxy when it is being torn down, it
   // means that IPC was not given control over the lifecycle of the actor
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/ProtocolUtils.h firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/ProtocolUtils.h
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/glue/ProtocolUtils.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/glue/ProtocolUtils.h	2021-10-20 19:28:22.000000000 +0000
@@ -59,13 +59,15 @@
 // starts approaching its 65,536th message.
 enum {
   // Message types used by NodeChannel
-  ACCEPT_INVITE_MESSAGE_TYPE = kuint16max - 14,
-  REQUEST_INTRODUCTION_MESSAGE_TYPE = kuint16max - 13,
-  INTRODUCE_MESSAGE_TYPE = kuint16max - 12,
-  BROADCAST_MESSAGE_TYPE = kuint16max - 11,
-  EVENT_MESSAGE_TYPE = kuint16max - 10,
+  ACCEPT_INVITE_MESSAGE_TYPE = kuint16max - 16,
+  REQUEST_INTRODUCTION_MESSAGE_TYPE = kuint16max - 15,
+  INTRODUCE_MESSAGE_TYPE = kuint16max - 14,
+  BROADCAST_MESSAGE_TYPE = kuint16max - 13,
+  EVENT_MESSAGE_TYPE = kuint16max - 12,
 
   // Message types used by MessageChannel
+  MANAGED_ENDPOINT_DROPPED_MESSAGE_TYPE = kuint16max - 11,
+  MANAGED_ENDPOINT_BOUND_MESSAGE_TYPE = kuint16max - 10,
   IMPENDING_SHUTDOWN_MESSAGE_TYPE = kuint16max - 9,
   BUILD_IDS_MATCH_MESSAGE_TYPE = kuint16max - 8,
   BUILD_ID_MESSAGE_TYPE = kuint16max - 7,  // unused
@@ -175,6 +177,7 @@
 class ActorLifecycleProxy;
 class WeakActorLifecycleProxy;
 class IPDLResolverInner;
+class UntypedManagedEndpoint;
 
 class IProtocol : public HasResultCodes {
  public:
@@ -183,7 +186,8 @@
     Deletion,
     AncestorDeletion,
     NormalShutdown,
-    AbnormalShutdown
+    AbnormalShutdown,
+    ManagedEndpointDropped
   };
 
   typedef base::ProcessId ProcessId;
@@ -246,6 +250,7 @@
   IProtocol* Manager() const { return mManager; }
 
   ActorLifecycleProxy* GetLifecycleProxy() { return mLifecycleProxy; }
+  WeakActorLifecycleProxy* GetWeakLifecycleProxy();
 
   Side GetSide() const { return mSide; }
   bool CanSend() const { return mLinkStatus == LinkStatus::Connected; }
@@ -283,6 +288,7 @@
   friend class IToplevelProtocol;
   friend class ActorLifecycleProxy;
   friend class IPDLResolverInner;
+  friend class UntypedManagedEndpoint;
 
   void SetId(int32_t aId);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/ipc/ipdl/ipdl/lower.py firefox-trunk-95.0~a1~hg20211020r596404/ipc/ipdl/ipdl/lower.py
--- firefox-trunk-95.0~a1~hg20211017r596111/ipc/ipdl/ipdl/lower.py	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/ipc/ipdl/ipdl/lower.py	2021-10-20 19:28:22.000000000 +0000
@@ -467,6 +467,7 @@
     NormalShutdown = ExprVar("NormalShutdown")
     AbnormalShutdown = ExprVar("AbnormalShutdown")
     FailedConstructor = ExprVar("FailedConstructor")
+    ManagedEndpointDropped = ExprVar("ManagedEndpointDropped")
 
 
 class _ResponseRejectReason:
@@ -4004,6 +4005,40 @@
             if toplevel.isInterrupt():
                 self.interruptSwitch = StmtSwitch(msgtype)
 
+        # Add a handler for the MANAGED_ENDPOINT_BOUND and
+        # MANAGED_ENDPOINT_DROPPED message types for managed actors.
+        if not ptype.isToplevel():
+            clearawaitingmanagedendpointbind = """
+                if (!mAwaitingManagedEndpointBind) {
+                    NS_WARNING("Unexpected managed endpoint lifecycle message after actor bound!");
+                    return MsgNotAllowed;
+                }
+                mAwaitingManagedEndpointBind = false;
+                """
+            self.asyncSwitch.addcase(
+                CaseLabel("MANAGED_ENDPOINT_BOUND_MESSAGE_TYPE"),
+                StmtBlock(
+                    [
+                        StmtCode(clearawaitingmanagedendpointbind),
+                        StmtReturn(_Result.Processed),
+                    ]
+                ),
+            )
+            self.asyncSwitch.addcase(
+                CaseLabel("MANAGED_ENDPOINT_DROPPED_MESSAGE_TYPE"),
+                StmtBlock(
+                    [
+                        StmtCode(clearawaitingmanagedendpointbind),
+                        *self.destroyActor(
+                            None,
+                            ExprVar.THIS,
+                            why=_DestroyReason.ManagedEndpointDropped,
+                        ),
+                        StmtReturn(_Result.Processed),
+                    ]
+                ),
+            )
+
         # implement Send*() methods and add dispatcher cases to
         # message switch()es
         for md in p.messageDecls:
@@ -4199,6 +4234,17 @@
         # or we're toplevel
         self.cls.addstmts([clearsubtree, Whitespace.NL])
 
+        if not ptype.isToplevel():
+            self.cls.addstmts(
+                [
+                    StmtDecl(
+                        Decl(Type.BOOL, "mAwaitingManagedEndpointBind"),
+                        init=ExprLiteral.FALSE,
+                    ),
+                    Whitespace.NL,
+                ]
+            )
+
         for managed in ptype.manages:
             self.cls.addstmts(
                 [
@@ -4232,7 +4278,11 @@
         openmeth.addcode(
             """
             $*{bind}
-            return ${thereEp}(mozilla::ipc::PrivateIPDLInterface(), aActor->Id());
+            // Mark our actor as awaiting the other side to be bound. This will
+            // be cleared when a `MANAGED_ENDPOINT_{DROPPED,BOUND}` message is
+            // received.
+            aActor->mAwaitingManagedEndpointBind = true;
+            return ${thereEp}(mozilla::ipc::PrivateIPDLInterface(), aActor);
             """,
             bind=self.bindManagedActor(actor, errfn=ExprCall(ExprVar(thereEp))),
             thereEp=thereEp,
@@ -4251,13 +4301,9 @@
         )
         bindmeth.addcode(
             """
-            MOZ_RELEASE_ASSERT(aEndpoint.ActorId(), "Invalid Endpoint!");
-            $*{bind}
-            return true;
+            return aEndpoint.Bind(mozilla::ipc::PrivateIPDLInterface(), aActor, this, ${container});
             """,
-            bind=self.bindManagedActor(
-                actor, errfn=ExprLiteral.FALSE, idexpr=ExprCode("*aEndpoint.ActorId()")
-            ),
+            container=self.protocol.managedVar(managed, self.side),
         )
 
         self.cls.addstmts([openmeth, bindmeth, Whitespace.NL])
@@ -4749,7 +4795,7 @@
         return method
 
     def destroyActor(self, md, actorexpr, why=_DestroyReason.Deletion):
-        if md.decl.type.isCtor():
+        if md and md.decl.type.isCtor():
             destroyedType = md.decl.type.constructedType()
         else:
             destroyedType = self.protocol.decl.type
@@ -4757,11 +4803,11 @@
         return [
             StmtCode(
                 """
-            IProtocol* mgr = ${actor}->Manager();
-            ${actor}->DestroySubtree(${why});
-            ${actor}->ClearSubtree();
-            mgr->RemoveManagee(${protoId}, ${actor});
-            """,
+                IProtocol* mgr = ${actor}->Manager();
+                ${actor}->DestroySubtree(${why});
+                ${actor}->ClearSubtree();
+                mgr->RemoveManagee(${protoId}, ${actor});
+                """,
                 actor=actorexpr,
                 why=why,
                 protoId=_protocolId(destroyedType),
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/examples/jorendb.js firefox-trunk-95.0~a1~hg20211020r596404/js/examples/jorendb.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/examples/jorendb.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/examples/jorendb.js	2021-10-20 19:28:23.000000000 +0000
@@ -79,15 +79,17 @@
     if (!style.pretty || (typeof dv !== 'object'))
         return [dvrepr, undefined];
 
+    const exec = debuggeeGlobalWrapper.executeInGlobalWithBindings.bind(debuggeeGlobalWrapper);
+
     if (dv.class == "Error") {
-        let errval = debuggeeGlobalWrapper.executeInGlobalWithBindings("$$.toString()", debuggeeValues);
+        let errval = exec("$$.toString()", debuggeeValues);
         return [dvrepr, errval.return];
     }
 
     if (style.brief)
         return [dvrepr, JSON.stringify(summaryObject(dv), null, 4)];
 
-    let str = debuggeeGlobalWrapper.executeInGlobalWithBindings("JSON.stringify(v, null, 4)", {v: dv});
+    let str = exec("JSON.stringify(v, null, 4)", {v: dv});
     if ('throw' in str) {
         if (style.noerror)
             return [dvrepr, undefined];
@@ -226,9 +228,11 @@
 
 // Rerun the program (reloading it from the file)
 function runCommand(args) {
-    print("Restarting program");
+    print(`Restarting program (${args})`);
     if (args)
         activeTask.scriptArgs = parseArgs(args);
+    else
+        activeTask.scriptArgs = [...actualScriptArgs];
     rerun = true;
     for (var f = topFrame; f; f = f.older) {
         if (f.older) {
@@ -847,7 +851,7 @@
 print("jorendb: actualScriptArgs = " + actualScriptArgs);
 
 for (var task of todo) {
-    task['scriptArgs'] = actualScriptArgs;
+    task['scriptArgs'] = [...actualScriptArgs];
 }
 
 // Always drop into a repl at the end. Especially if the main script throws an
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/moz.configure firefox-trunk-95.0~a1~hg20211020r596404/js/moz.configure
--- firefox-trunk-95.0~a1~hg20211017r596111/js/moz.configure	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/moz.configure	2021-10-20 19:28:22.000000000 +0000
@@ -898,17 +898,44 @@
 # Support for WebAssembly Memory64.
 # ===========================
 
+
+@depends(milestone.is_nightly, "--enable-cranelift", "--enable-simulator", target)
+def default_wasm_memory64(is_nightly, cranelift, simulator, target):
+    if cranelift:
+        return
+
+    if target.cpu == "mips32" or target.cpu == "mips64":
+        return
+
+    if simulator and (simulator[0] == "mips32" or simulator[0] == "mips64"):
+        return
+
+    if is_nightly:
+        return True
+
+
 option(
     "--enable-wasm-memory64",
-    default=False,
+    default=default_wasm_memory64,
     help="{Enable|Disable} WebAssembly Memory64",
 )
 
 
-@depends("--enable-wasm-memory64")
-def wasm_memory64(value):
-    if value:
-        return True
+@depends("--enable-wasm-memory64", "--enable-cranelift", "--enable-simulator", target)
+def wasm_memory64(value, cranelift, simulator, target):
+    if not value:
+        return
+
+    if cranelift:
+        die("Memory64 is incompatible with Cranelift")
+
+    if target.cpu == "mips32" or target.cpu == "mips64":
+        die("Memory64 is incompatible with MIPS target")
+
+    if simulator and (simulator[0] == "mips32" or simulator[0] == "mips64"):
+        die("Memory64 is incompatible with MIPS simulator")
+
+    return True
 
 
 set_config("ENABLE_WASM_MEMORY64", wasm_memory64)
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/public/CompilationAndEvaluation.h firefox-trunk-95.0~a1~hg20211020r596404/js/public/CompilationAndEvaluation.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/public/CompilationAndEvaluation.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/public/CompilationAndEvaluation.h	2021-10-20 19:28:22.000000000 +0000
@@ -13,8 +13,8 @@
 
 #include "jstypes.h"  // JS_PUBLIC_API
 
-#include "js/CompileOptions.h"  // JS::CompileOptions, JS::ReadOnlyCompileOptions
-#include "js/RootingAPI.h"      // JS::Handle, JS::MutableHandle
+#include "js/CompileOptions.h"  // JS::CompileOptions, JS::ReadOnlyCompileOptions, JS::InstantiateOptions
+#include "js/RootingAPI.h"  // JS::Handle, JS::MutableHandle
 #include "js/Value.h"  // JS::Value and specializations of JS::*Handle-related types
 
 struct JS_PUBLIC_API JSContext;
@@ -247,10 +247,9 @@
  * the debug metadata is provided by the UpdateDebugMetadata call.
  */
 extern JS_PUBLIC_API bool UpdateDebugMetadata(
-    JSContext* cx, Handle<JSScript*> script,
-    const ReadOnlyCompileOptions& options, HandleValue privateValue,
-    HandleString elementAttributeName, HandleScript introScript,
-    HandleScript scriptOrModule);
+    JSContext* cx, Handle<JSScript*> script, const InstantiateOptions& options,
+    HandleValue privateValue, HandleString elementAttributeName,
+    HandleScript introScript, HandleScript scriptOrModule);
 
 // The debugger API exposes an optional "element" property on DebuggerSource
 // objects.  The callback defined here provides that value.  SpiderMonkey
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/public/CompileOptions.h firefox-trunk-95.0~a1~hg20211020r596404/js/public/CompileOptions.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/public/CompileOptions.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/public/CompileOptions.h	2021-10-20 19:28:22.000000000 +0000
@@ -52,6 +52,7 @@
 #ifndef js_CompileOptions_h
 #define js_CompileOptions_h
 
+#include "mozilla/Assertions.h"       // MOZ_ASSERT
 #include "mozilla/MemoryReporting.h"  // mozilla::MallocSizeOf
 
 #include <stddef.h>  // size_t
@@ -71,6 +72,8 @@
   DisabledByDebugger,
 };
 
+class JS_PUBLIC_API InstantiateOptions;
+
 /**
  * The common base class for the CompileOptions hierarchy.
  *
@@ -114,6 +117,17 @@
   // See also SetFilenameValidationCallback.
   bool skipFilenameValidation_ = false;
 
+  bool hideScriptFromDebugger_ = false;
+
+  // If set, this script will be hidden from the debugger. The requirement
+  // is that once compilation is finished, a call to UpdateDebugMetadata will
+  // be made, which will update the SSO with the appropiate debug metadata,
+  // and expose the script to the debugger (if hideScriptFromDebugger_ isn't
+  // set)
+  bool deferDebugMetadata_ = false;
+
+  friend class JS_PUBLIC_API InstantiateOptions;
+
  public:
   // POD options.
   bool selfHostingMode = false;
@@ -123,17 +137,6 @@
   bool discardSource = false;
   bool sourceIsLazy = false;
   bool allowHTMLComments = true;
-  bool hideScriptFromDebugger = false;
-
-  // If set, this script will be hidden from the debugger. The requirement
-  // is that once compilation is finished, a call to UpdateDebugMetadata will
-  // be made, which will update the SSO with the appropiate debug metadata,
-  // and expose the script to the debugger (if hideScriptFromDebugger isn't set)
-  bool deferDebugMetadata = false;
-
-  bool hideFromNewScriptInitial() const {
-    return deferDebugMetadata || hideScriptFromDebugger;
-  }
 
   bool nonSyntacticScope = false;
   bool privateClassFields = false;
@@ -196,7 +199,6 @@
   bool mutedErrors() const { return mutedErrors_; }
   bool forceFullParse() const { return forceFullParse_; }
   bool forceStrictMode() const { return forceStrictMode_; }
-  bool skipFilenameValidation() const { return skipFilenameValidation_; }
   bool sourcePragmas() const { return sourcePragmas_; }
   const char* filename() const { return filename_; }
   const char* introducerFilename() const { return introducerFilename_; }
@@ -391,8 +393,13 @@
     return *this;
   }
 
-  CompileOptions& setdeferDebugMetadata(bool v = true) {
-    deferDebugMetadata = v;
+  CompileOptions& setDeferDebugMetadata(bool v = true) {
+    deferDebugMetadata_ = v;
+    return *this;
+  }
+
+  CompileOptions& setHideScriptFromDebugger(bool v = true) {
+    hideScriptFromDebugger_ = v;
     return *this;
   }
 
@@ -439,6 +446,45 @@
   CompileOptions& operator=(const CompileOptions& rhs) = delete;
 };
 
+/**
+ * Subset of CompileOptions fields used while instantiating Stencils.
+ */
+class JS_PUBLIC_API InstantiateOptions {
+ public:
+  bool skipFilenameValidation = false;
+  bool hideScriptFromDebugger = false;
+  bool deferDebugMetadata = false;
+
+  InstantiateOptions() = default;
+
+  explicit InstantiateOptions(const ReadOnlyCompileOptions& options)
+      : skipFilenameValidation(options.skipFilenameValidation_),
+        hideScriptFromDebugger(options.hideScriptFromDebugger_),
+        deferDebugMetadata(options.deferDebugMetadata_) {}
+
+  void copyTo(CompileOptions& options) const {
+    options.skipFilenameValidation_ = skipFilenameValidation;
+    options.hideScriptFromDebugger_ = hideScriptFromDebugger;
+    options.deferDebugMetadata_ = deferDebugMetadata;
+  }
+
+  bool hideFromNewScriptInitial() const {
+    return deferDebugMetadata || hideScriptFromDebugger;
+  }
+
+#ifdef DEBUG
+  // Assert that all fields have default value.
+  //
+  // This can be used when instantiation is performed as separate step than
+  // compile-to-stencil, and CompileOptions isn't available there.
+  void assertDefault() const {
+    MOZ_ASSERT(skipFilenameValidation == false);
+    MOZ_ASSERT(hideScriptFromDebugger == false);
+    MOZ_ASSERT(deferDebugMetadata == false);
+  }
+#endif
+};
+
 }  // namespace JS
 
 #endif /* js_CompileOptions_h */
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/public/experimental/JSStencil.h firefox-trunk-95.0~a1~hg20211020r596404/js/public/experimental/JSStencil.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/public/experimental/JSStencil.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/public/experimental/JSStencil.h	2021-10-20 19:28:22.000000000 +0000
@@ -81,7 +81,7 @@
 
 // Instantiate the Stencil into current Realm and return the JSScript.
 extern JS_PUBLIC_API JSScript* InstantiateGlobalStencil(
-    JSContext* cx, const ReadOnlyCompileOptions& options, Stencil* stencil);
+    JSContext* cx, const InstantiateOptions& options, Stencil* stencil);
 
 // Return true if the stencil relies on external data as a result of XDR
 // decoding.
@@ -93,7 +93,7 @@
 // Instantiate a module Stencil and return the associated object. Inside the
 // engine this is a js::ModuleObject.
 extern JS_PUBLIC_API JSObject* InstantiateModuleStencil(
-    JSContext* cx, const ReadOnlyCompileOptions& options, Stencil* stencil);
+    JSContext* cx, const InstantiateOptions& options, Stencil* stencil);
 
 // Serialize the Stencil into the transcode buffer.
 extern JS_PUBLIC_API TranscodeResult
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/public/friend/ErrorNumbers.msg firefox-trunk-95.0~a1~hg20211020r596404/js/public/friend/ErrorNumbers.msg
--- firefox-trunk-95.0~a1~hg20211017r596111/js/public/friend/ErrorNumbers.msg	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/public/friend/ErrorNumbers.msg	2021-10-20 19:28:22.000000000 +0000
@@ -583,7 +583,7 @@
 
 // Intl
 MSG_DEF(JSMSG_DATE_NOT_FINITE,         2, JSEXN_RANGEERR, "date value is not finite in {0}.{1}()")
-MSG_DEF(JSMSG_DUPLICATE_VARIANT_SUBTAG, 1, JSEXN_RANGEERR, "duplicate variant subtag: {0}")
+MSG_DEF(JSMSG_DUPLICATE_VARIANT_SUBTAG, 0, JSEXN_RANGEERR, "duplicate variant subtag")
 MSG_DEF(JSMSG_INTERNAL_INTL_ERROR,     0, JSEXN_ERR, "internal error while computing Intl data")
 MSG_DEF(JSMSG_INVALID_CURRENCY_CODE,   1, JSEXN_RANGEERR, "invalid currency code in NumberFormat(): {0}")
 MSG_DEF(JSMSG_INVALID_UNIT_IDENTIFIER, 1, JSEXN_RANGEERR, "invalid unit identifier in NumberFormat(): {0}")
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/public/GCHashTable.h firefox-trunk-95.0~a1~hg20211020r596404/js/public/GCHashTable.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/public/GCHashTable.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/public/GCHashTable.h	2021-10-20 19:28:23.000000000 +0000
@@ -78,15 +78,8 @@
     }
   }
 
-  bool needsSweep() const { return !this->empty(); }
-
   void sweep() {
-    typename Base::Enum e(*this);
-    sweepEntries(e);
-  }
-
-  void sweepEntries(typename Base::Enum& e) {
-    for (; !e.empty(); e.popFront()) {
+    for (typename Base::Enum e(*this); !e.empty(); e.popFront()) {
       if (MapSweepPolicy::needsSweep(&e.front().mutableKey(),
                                      &e.front().value())) {
         e.removeFront();
@@ -94,7 +87,13 @@
     }
   }
 
-  void traceWeak(JSTracer* trc) {
+  bool traceWeak(JSTracer* trc) {
+    typename Base::Enum e(*this);
+    traceWeakEntries(trc, e);
+    return !this->empty();
+  }
+
+  void traceWeakEntries(JSTracer* trc, typename Base::Enum& e) {
     for (typename Base::Enum e(*this); !e.empty(); e.popFront()) {
       if (!MapSweepPolicy::traceWeak(trc, &e.front().mutableKey(),
                                      &e.front().value())) {
@@ -151,7 +150,7 @@
     }
   }
 
-  void traceWeak(JSTracer* trc) {
+  bool traceWeak(JSTracer* trc) {
     for (typename Base::Enum e(*this); !e.empty(); e.popFront()) {
       Key key(e.front().key());
       if (!MapSweepPolicy::traceWeak(trc, &key, &e.front().value())) {
@@ -160,6 +159,7 @@
         e.rekeyFront(key);
       }
     }
+    return !this->empty();
   }
 
   // GCRekeyableHashMap is movable
@@ -277,23 +277,14 @@
     }
   }
 
-  bool needsSweep() const { return !this->empty(); }
-
-  void sweep() {
+  bool traceWeak(JSTracer* trc) {
     typename Base::Enum e(*this);
-    sweepEntries(e);
+    traceWeakEntries(trc, e);
+    return !this->empty();
   }
 
-  void sweepEntries(typename Base::Enum& e) {
+  void traceWeakEntries(JSTracer* trc, typename Base::Enum& e) {
     for (; !e.empty(); e.popFront()) {
-      if (GCPolicy<T>::needsSweep(&e.mutableFront())) {
-        e.removeFront();
-      }
-    }
-  }
-
-  void traceWeak(JSTracer* trc) {
-    for (typename Base::Enum e(*this); !e.empty(); e.popFront()) {
       if (!GCPolicy<T>::traceWeak(trc, &e.mutableFront())) {
         e.removeFront();
       }
@@ -408,35 +399,31 @@
 template <typename Key, typename Value, typename HashPolicy,
           typename AllocPolicy, typename MapSweepPolicy>
 class WeakCache<GCHashMap<Key, Value, HashPolicy, AllocPolicy, MapSweepPolicy>>
-    : protected detail::WeakCacheBase {
+    final : protected detail::WeakCacheBase {
   using Map = GCHashMap<Key, Value, HashPolicy, AllocPolicy, MapSweepPolicy>;
   using Self = WeakCache<Map>;
 
   Map map;
-  bool needsBarrier;
+  JSTracer* barrierTracer = nullptr;
 
  public:
   template <typename... Args>
   explicit WeakCache(Zone* zone, Args&&... args)
-      : WeakCacheBase(zone),
-        map(std::forward<Args>(args)...),
-        needsBarrier(false) {}
+      : WeakCacheBase(zone), map(std::forward<Args>(args)...) {}
   template <typename... Args>
   explicit WeakCache(JSRuntime* rt, Args&&... args)
-      : WeakCacheBase(rt),
-        map(std::forward<Args>(args)...),
-        needsBarrier(false) {}
-  ~WeakCache() { MOZ_ASSERT(!needsBarrier); }
+      : WeakCacheBase(rt), map(std::forward<Args>(args)...) {}
+  ~WeakCache() { MOZ_ASSERT(!barrierTracer); }
 
-  bool needsSweep() override { return map.needsSweep(); }
+  bool empty() override { return map.empty(); }
 
-  size_t sweep(js::gc::StoreBuffer* sbToLock) override {
+  size_t traceWeak(JSTracer* trc, js::gc::StoreBuffer* sbToLock) override {
     size_t steps = map.count();
 
     // Create an Enum and sweep the table entries.
     mozilla::Maybe<typename Map::Enum> e;
     e.emplace(map);
-    map.sweepEntries(e.ref());
+    map.traceWeakEntries(trc, e.ref());
 
     // Potentially take a lock while the Enum's destructor is called as this can
     // rehash/resize the table and access the store buffer.
@@ -449,24 +436,26 @@
     return steps;
   }
 
-  bool setNeedsIncrementalBarrier(bool needs) override {
-    MOZ_ASSERT(needsBarrier != needs);
-    needsBarrier = needs;
+  bool setIncrementalBarrierTracer(JSTracer* trc) override {
+    MOZ_ASSERT(bool(barrierTracer) != bool(trc));
+    barrierTracer = trc;
     return true;
   }
 
-  bool needsIncrementalBarrier() const override { return needsBarrier; }
+  bool needsIncrementalBarrier() const override { return barrierTracer; }
 
  private:
   using Entry = typename Map::Entry;
 
-  static bool entryNeedsSweep(const Entry& prior) {
+  static bool entryNeedsSweep(JSTracer* barrierTracer, const Entry& prior) {
     Key key(prior.key());
     Value value(prior.value());
-    bool result = MapSweepPolicy::needsSweep(&key, &value);
-    MOZ_ASSERT(prior.key() == key);      // We shouldn't update here.
-    MOZ_ASSERT(prior.value() == value);  // We shouldn't update here.
-    return result;
+    bool needsSweep = !MapSweepPolicy::traceWeak(barrierTracer, &key, &value);
+    MOZ_ASSERT_IF(!needsSweep,
+                  prior.key() == key);  // We shouldn't update here.
+    MOZ_ASSERT_IF(!needsSweep,
+                  prior.value() == value);  // We shouldn't update here.
+    return needsSweep;
   }
 
  public:
@@ -474,8 +463,11 @@
   using Ptr = typename Map::Ptr;
   using AddPtr = typename Map::AddPtr;
 
+  // Iterator over the whole collection.
   struct Range {
-    explicit Range(const typename Map::Range& r) : range(r) { settle(); }
+    explicit Range(Self& self) : cache(self), range(self.map.all()) {
+      settle();
+    }
     Range() = default;
 
     bool empty() const { return range.empty(); }
@@ -487,11 +479,14 @@
     }
 
    private:
+    Self& cache;
     typename Map::Range range;
 
     void settle() {
-      while (!empty() && entryNeedsSweep(front())) {
-        popFront();
+      if (JSTracer* trc = cache.barrierTracer) {
+        while (!empty() && entryNeedsSweep(trc, front())) {
+          popFront();
+        }
       }
     }
   };
@@ -500,13 +495,13 @@
     explicit Enum(Self& cache) : Map::Enum(cache.map) {
       // This operation is not allowed while barriers are in place as we
       // may also need to enumerate the set for sweeping.
-      MOZ_ASSERT(!cache.needsBarrier);
+      MOZ_ASSERT(!cache.barrierTracer);
     }
   };
 
   Ptr lookup(const Lookup& l) const {
     Ptr ptr = map.lookup(l);
-    if (needsBarrier && ptr && entryNeedsSweep(*ptr)) {
+    if (barrierTracer && ptr && entryNeedsSweep(barrierTracer, *ptr)) {
       const_cast<Map&>(map).remove(ptr);
       return Ptr();
     }
@@ -515,20 +510,20 @@
 
   AddPtr lookupForAdd(const Lookup& l) {
     AddPtr ptr = map.lookupForAdd(l);
-    if (needsBarrier && ptr && entryNeedsSweep(*ptr)) {
+    if (barrierTracer && ptr && entryNeedsSweep(barrierTracer, *ptr)) {
       const_cast<Map&>(map).remove(ptr);
       return map.lookupForAdd(l);
     }
     return ptr;
   }
 
-  Range all() const { return Range(map.all()); }
+  Range all() const { return Range(*const_cast<Self*>(this)); }
 
   bool empty() const {
     // This operation is not currently allowed while barriers are in place
     // as it would require iterating the map and the caller expects a
     // constant time operation.
-    MOZ_ASSERT(!needsBarrier);
+    MOZ_ASSERT(!barrierTracer);
     return map.empty();
   }
 
@@ -536,7 +531,7 @@
     // This operation is not currently allowed while barriers are in place
     // as it would require iterating the set and the caller expects a
     // constant time operation.
-    MOZ_ASSERT(!needsBarrier);
+    MOZ_ASSERT(!barrierTracer);
     return map.count();
   }
 
@@ -554,14 +549,14 @@
   void clear() {
     // This operation is not currently allowed while barriers are in place
     // since it doesn't make sense to clear a cache while it is being swept.
-    MOZ_ASSERT(!needsBarrier);
+    MOZ_ASSERT(!barrierTracer);
     map.clear();
   }
 
   void clearAndCompact() {
     // This operation is not currently allowed while barriers are in place
     // since it doesn't make sense to clear a cache while it is being swept.
-    MOZ_ASSERT(!needsBarrier);
+    MOZ_ASSERT(!barrierTracer);
     map.clearAndCompact();
   }
 
@@ -604,36 +599,32 @@
 // Specialize WeakCache for GCHashSet to provide a barriered set that does not
 // need to be swept immediately.
 template <typename T, typename HashPolicy, typename AllocPolicy>
-class WeakCache<GCHashSet<T, HashPolicy, AllocPolicy>>
+class WeakCache<GCHashSet<T, HashPolicy, AllocPolicy>> final
     : protected detail::WeakCacheBase {
   using Set = GCHashSet<T, HashPolicy, AllocPolicy>;
   using Self = WeakCache<Set>;
 
   Set set;
-  bool needsBarrier;
+  JSTracer* barrierTracer = nullptr;
 
  public:
   using Entry = typename Set::Entry;
 
   template <typename... Args>
   explicit WeakCache(Zone* zone, Args&&... args)
-      : WeakCacheBase(zone),
-        set(std::forward<Args>(args)...),
-        needsBarrier(false) {}
+      : WeakCacheBase(zone), set(std::forward<Args>(args)...) {}
   template <typename... Args>
   explicit WeakCache(JSRuntime* rt, Args&&... args)
-      : WeakCacheBase(rt),
-        set(std::forward<Args>(args)...),
-        needsBarrier(false) {}
+      : WeakCacheBase(rt), set(std::forward<Args>(args)...) {}
 
-  size_t sweep(js::gc::StoreBuffer* sbToLock) override {
+  size_t traceWeak(JSTracer* trc, js::gc::StoreBuffer* sbToLock) override {
     size_t steps = set.count();
 
     // Create an Enum and sweep the table entries. It's not necessary to take
     // the store buffer lock yet.
     mozilla::Maybe<typename Set::Enum> e;
     e.emplace(set);
-    set.sweepEntries(e.ref());
+    set.traceWeakEntries(trc, e.ref());
 
     // Destroy the Enum, potentially rehashing or resizing the table. Since this
     // can access the store buffer, we need to take a lock for this if we're
@@ -647,22 +638,22 @@
     return steps;
   }
 
-  bool needsSweep() override { return set.needsSweep(); }
+  bool empty() override { return set.empty(); }
 
-  bool setNeedsIncrementalBarrier(bool needs) override {
-    MOZ_ASSERT(needsBarrier != needs);
-    needsBarrier = needs;
+  bool setIncrementalBarrierTracer(JSTracer* trc) override {
+    MOZ_ASSERT(bool(barrierTracer) != bool(trc));
+    barrierTracer = trc;
     return true;
   }
 
-  bool needsIncrementalBarrier() const override { return needsBarrier; }
+  bool needsIncrementalBarrier() const override { return barrierTracer; }
 
  private:
-  static bool entryNeedsSweep(const Entry& prior) {
+  static bool entryNeedsSweep(JSTracer* barrierTracer, const Entry& prior) {
     Entry entry(prior);
-    bool result = GCPolicy<T>::needsSweep(&entry);
-    MOZ_ASSERT(prior == entry);  // We shouldn't update here.
-    return result;
+    bool needsSweep = !GCPolicy<T>::traceWeak(barrierTracer, &entry);
+    MOZ_ASSERT_IF(!needsSweep, prior == entry);  // We shouldn't update here.
+    return needsSweep;
   }
 
  public:
@@ -670,8 +661,11 @@
   using Ptr = typename Set::Ptr;
   using AddPtr = typename Set::AddPtr;
 
+  // Iterator over the whole collection.
   struct Range {
-    explicit Range(const typename Set::Range& r) : range(r) { settle(); }
+    explicit Range(Self& self) : cache(self), range(self.set.all()) {
+      settle();
+    }
     Range() = default;
 
     bool empty() const { return range.empty(); }
@@ -683,11 +677,14 @@
     }
 
    private:
+    Self& cache;
     typename Set::Range range;
 
     void settle() {
-      while (!empty() && entryNeedsSweep(front())) {
-        popFront();
+      if (JSTracer* trc = cache.barrierTracer) {
+        while (!empty() && entryNeedsSweep(trc, front())) {
+          popFront();
+        }
       }
     }
   };
@@ -696,13 +693,13 @@
     explicit Enum(Self& cache) : Set::Enum(cache.set) {
       // This operation is not allowed while barriers are in place as we
       // may also need to enumerate the set for sweeping.
-      MOZ_ASSERT(!cache.needsBarrier);
+      MOZ_ASSERT(!cache.barrierTracer);
     }
   };
 
   Ptr lookup(const Lookup& l) const {
     Ptr ptr = set.lookup(l);
-    if (needsBarrier && ptr && entryNeedsSweep(*ptr)) {
+    if (barrierTracer && ptr && entryNeedsSweep(barrierTracer, *ptr)) {
       const_cast<Set&>(set).remove(ptr);
       return Ptr();
     }
@@ -711,20 +708,20 @@
 
   AddPtr lookupForAdd(const Lookup& l) {
     AddPtr ptr = set.lookupForAdd(l);
-    if (needsBarrier && ptr && entryNeedsSweep(*ptr)) {
+    if (barrierTracer && ptr && entryNeedsSweep(barrierTracer, *ptr)) {
       const_cast<Set&>(set).remove(ptr);
       return set.lookupForAdd(l);
     }
     return ptr;
   }
 
-  Range all() const { return Range(set.all()); }
+  Range all() const { return Range(*const_cast<Self*>(this)); }
 
   bool empty() const {
     // This operation is not currently allowed while barriers are in place
     // as it would require iterating the set and the caller expects a
     // constant time operation.
-    MOZ_ASSERT(!needsBarrier);
+    MOZ_ASSERT(!barrierTracer);
     return set.empty();
   }
 
@@ -732,7 +729,7 @@
     // This operation is not currently allowed while barriers are in place
     // as it would require iterating the set and the caller expects a
     // constant time operation.
-    MOZ_ASSERT(!needsBarrier);
+    MOZ_ASSERT(!barrierTracer);
     return set.count();
   }
 
@@ -750,14 +747,14 @@
   void clear() {
     // This operation is not currently allowed while barriers are in place
     // since it doesn't make sense to clear a cache while it is being swept.
-    MOZ_ASSERT(!needsBarrier);
+    MOZ_ASSERT(!barrierTracer);
     set.clear();
   }
 
   void clearAndCompact() {
     // This operation is not currently allowed while barriers are in place
     // since it doesn't make sense to clear a cache while it is being swept.
-    MOZ_ASSERT(!needsBarrier);
+    MOZ_ASSERT(!barrierTracer);
     set.clearAndCompact();
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/public/GCVector.h firefox-trunk-95.0~a1~hg20211020r596404/js/public/GCVector.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/public/GCVector.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/public/GCVector.h	2021-10-20 19:28:22.000000000 +0000
@@ -182,7 +182,10 @@
     return !empty();
   }
 
-  bool needsSweep() const { return !this->empty(); }
+  bool needsSweep() {
+    sweep();
+    return this->empty();
+  }
 
   void sweep() {
     T* src = begin();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/public/SweepingAPI.h firefox-trunk-95.0~a1~hg20211020r596404/js/public/SweepingAPI.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/public/SweepingAPI.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/public/SweepingAPI.h	2021-10-20 19:28:22.000000000 +0000
@@ -60,10 +60,14 @@
   WeakCacheBase(WeakCacheBase&& other) = default;
   virtual ~WeakCacheBase() = default;
 
-  virtual size_t sweep(js::gc::StoreBuffer* sbToLock) = 0;
-  virtual bool needsSweep() = 0;
+  virtual size_t traceWeak(JSTracer* trc, js::gc::StoreBuffer* sbToLock) = 0;
 
-  virtual bool setNeedsIncrementalBarrier(bool needs) {
+  // Sweeping will be skipped if the cache is empty already.
+  virtual bool empty() = 0;
+
+  // Enable/disable read barrier during incremental sweeping and set the tracer
+  // to use.
+  virtual bool setIncrementalBarrierTracer(JSTracer* trc) {
     // Derived classes do not support incremental barriers by default.
     return false;
   }
@@ -96,7 +100,7 @@
   const T& get() const { return cache; }
   T& get() { return cache; }
 
-  size_t sweep(js::gc::StoreBuffer* sbToLock) override {
+  size_t traceWeak(JSTracer* trc, js::gc::StoreBuffer* sbToLock) override {
     // Take the store buffer lock in case sweeping triggers any generational
     // post barriers. This is not always required and WeakCache specializations
     // may delay or skip taking the lock as appropriate.
@@ -105,11 +109,11 @@
       lock.emplace(sbToLock);
     }
 
-    GCPolicy<T>::sweep(&cache);
+    GCPolicy<T>::traceWeak(trc, &cache);
     return 0;
   }
 
-  bool needsSweep() override { return cache.needsSweep(); }
+  bool empty() override { return cache.empty(); }
 } JS_HAZ_NON_GC_POINTER;
 
 }  // namespace JS
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/public/WasmFeatures.h firefox-trunk-95.0~a1~hg20211020r596404/js/public/WasmFeatures.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/public/WasmFeatures.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/public/WasmFeatures.h	2021-10-20 19:28:22.000000000 +0000
@@ -139,7 +139,8 @@
   EXPERIMENTAL(/* capitalized name   */ Memory64,                             \
                /* lower case name    */ memory64,                             \
                /* compile predicate  */ WASM_MEMORY64_ENABLED,                \
-               /* compiler predicate */ BaselineAvailable(cx),                \
+               /* compiler predicate */ BaselineAvailable(cx) ||              \
+                  IonAvailable(cx),                                           \
                /* flag predicate     */ !IsFuzzingIon(cx) &&                  \
                    !IsFuzzingCranelift(cx),                                   \
                /* shell flag         */ "memory64",                           \
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/Eval.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/Eval.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/Eval.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/Eval.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -301,7 +301,7 @@
     options.setIsRunOnce(true)
         .setNoScriptRval(false)
         .setMutedErrors(mutedErrors)
-        .setdeferDebugMetadata();
+        .setDeferDebugMetadata();
 
     RootedScript introScript(cx);
 
@@ -342,8 +342,9 @@
     }
 
     RootedValue undefValue(cx);
-    if (!JS::UpdateDebugMetadata(cx, script, options, undefValue, nullptr,
-                                 introScript, maybeScript)) {
+    JS::InstantiateOptions instantiateOptions(options);
+    if (!JS::UpdateDebugMetadata(cx, script, instantiateOptions, undefValue,
+                                 nullptr, introScript, maybeScript)) {
       return false;
     }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/FinalizationRegistryObject.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/FinalizationRegistryObject.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/FinalizationRegistryObject.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/FinalizationRegistryObject.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -168,9 +168,9 @@
   records()->eraseIfEqual(record);
 }
 
-inline void FinalizationRegistrationsObject::sweep() {
+inline bool FinalizationRegistrationsObject::traceWeak(JSTracer* trc) {
   MOZ_ASSERT(records());
-  return records()->sweep();
+  return records()->traceWeak(trc);
 }
 
 ///////////////////////////////////////////////////////////////////////////
@@ -276,25 +276,26 @@
 
 /* static */
 void FinalizationRegistryObject::trace(JSTracer* trc, JSObject* obj) {
-  auto registry = &obj->as<FinalizationRegistryObject>();
-
   // Trace the registrations weak map. At most this traces the
   // FinalizationRegistrationsObject values of the map; the contents of those
-  // objects are weakly held and are not traced.
+  // objects are weakly held and are not traced by this method.
+
+  auto* registry = &obj->as<FinalizationRegistryObject>();
   if (ObjectWeakMap* registrations = registry->registrations()) {
     registrations->trace(trc);
   }
 }
 
-void FinalizationRegistryObject::sweep() {
-  // Sweep the contents of the registrations weak map's values.
+void FinalizationRegistryObject::traceWeak(JSTracer* trc) {
+  // Trace and update the contents of the registrations weak map's values, which
+  // are weakly held.
+
   MOZ_ASSERT(registrations());
   for (ObjectValueWeakMap::Enum e(registrations()->valueMap()); !e.empty();
        e.popFront()) {
-    auto registrations =
+    auto* registrations =
         &e.front().value().toObject().as<FinalizationRegistrationsObject>();
-    registrations->sweep();
-    if (registrations->isEmpty()) {
+    if (!registrations->traceWeak(trc)) {
       e.removeFront();
     }
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/FinalizationRegistryObject.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/FinalizationRegistryObject.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/FinalizationRegistryObject.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/FinalizationRegistryObject.h	2021-10-20 19:28:22.000000000 +0000
@@ -155,7 +155,7 @@
   bool append(HandleFinalizationRecordObject record);
   void remove(HandleFinalizationRecordObject record);
 
-  void sweep();
+  bool traceWeak(JSTracer* trc);
 
  private:
   static const JSClassOps classOps_;
@@ -180,7 +180,7 @@
   FinalizationQueueObject* queue() const;
   ObjectWeakMap* registrations() const;
 
-  void sweep();
+  void traceWeak(JSTracer* trc);
 
   static bool unregisterRecord(FinalizationRecordObject* record);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/Collator.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/Collator.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/Collator.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/Collator.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -10,10 +10,12 @@
 
 #include "mozilla/Assertions.h"
 #include "mozilla/intl/Collator.h"
+#include "mozilla/intl/Locale.h"
 #include "mozilla/Span.h"
 
 #include "builtin/Array.h"
 #include "builtin/intl/CommonFunctions.h"
+#include "builtin/intl/FormatBuffer.h"
 #include "builtin/intl/LanguageTag.h"
 #include "builtin/intl/SharedIntlData.h"
 #include "gc/FreeOp.h"
@@ -239,9 +241,12 @@
     }
     if (StringEqualsLiteral(usage, "search")) {
       // ICU expects search as a Unicode locale extension on locale.
-      intl::LanguageTag tag(cx);
-      if (!intl::LanguageTagParser::parse(
-              cx, mozilla::MakeStringSpan(locale.get()), tag)) {
+      mozilla::intl::Locale tag;
+      if (mozilla::intl::LocaleParser::tryParse(
+              mozilla::MakeStringSpan(locale.get()), tag)
+              .isErr()) {
+        JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
+                                  JSMSG_INVALID_LANGUAGE_TAG, locale.get());
         return nullptr;
       }
 
@@ -259,7 +264,13 @@
         return nullptr;
       }
 
-      locale = tag.toStringZ(cx);
+      intl::FormatBuffer<char> buffer(cx);
+      if (auto result = tag.toString(buffer); result.isErr()) {
+        intl::ReportInternalError(cx, result.unwrapErr());
+        return nullptr;
+      }
+
+      locale = buffer.extractStringZ();
       if (!locale) {
         return nullptr;
       }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/DateTimeFormat.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/DateTimeFormat.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/DateTimeFormat.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/DateTimeFormat.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -13,6 +13,7 @@
 #include "mozilla/intl/Calendar.h"
 #include "mozilla/intl/DateTimeFormat.h"
 #include "mozilla/intl/DateTimePatternGenerator.h"
+#include "mozilla/intl/Locale.h"
 #include "mozilla/intl/TimeZone.h"
 #include "mozilla/Range.h"
 #include "mozilla/Span.h"
@@ -520,14 +521,14 @@
   // ICU expects calendar, numberingSystem, and hourCycle as Unicode locale
   // extensions on locale.
 
-  intl::LanguageTag tag(cx);
+  mozilla::intl::Locale tag;
   {
-    JSLinearString* locale = value.toString()->ensureLinear(cx);
+    RootedLinearString locale(cx, value.toString()->ensureLinear(cx));
     if (!locale) {
       return nullptr;
     }
 
-    if (!intl::LanguageTagParser::parse(cx, locale, tag)) {
+    if (!intl::ParseLocale(cx, locale, tag)) {
       return nullptr;
     }
   }
@@ -595,7 +596,12 @@
     return nullptr;
   }
 
-  return tag.toStringZ(cx);
+  FormatBuffer<char> buffer(cx);
+  if (auto result = tag.toString(buffer); result.isErr()) {
+    intl::ReportInternalError(cx, result.unwrapErr());
+    return nullptr;
+  }
+  return buffer.extractStringZ();
 }
 
 static bool AssignTextComponent(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/DisplayNames.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/DisplayNames.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/DisplayNames.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/DisplayNames.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -10,6 +10,7 @@
 
 #include "mozilla/Assertions.h"
 #include "mozilla/intl/DateTimePatternGenerator.h"
+#include "mozilla/intl/Locale.h"
 #include "mozilla/Span.h"
 #include "mozilla/TextUtils.h"
 
@@ -21,9 +22,11 @@
 #include "jspubtd.h"
 
 #include "builtin/intl/CommonFunctions.h"
+#include "builtin/intl/FormatBuffer.h"
 #include "builtin/intl/LanguageTag.h"
 #include "builtin/intl/ScopedICUObject.h"
 #include "builtin/intl/SharedIntlData.h"
+#include "builtin/intl/StringAsciiChars.h"
 #include "builtin/String.h"
 #include "gc/AllocKind.h"
 #include "gc/FreeOp.h"
@@ -70,6 +73,8 @@
 using js::intl::CallICU;
 using js::intl::IcuLocale;
 
+using mozilla::intl::LocaleParser;
+
 const JSClassOps DisplayNamesObject::classOps_ = {nullptr, /* addProperty */
                                                   nullptr, /* delProperty */
                                                   nullptr, /* enumerate */
@@ -332,27 +337,54 @@
   }
 }
 
+static bool TryParseBaseName(JSContext* cx, HandleLinearString languageStr,
+                             mozilla::intl::Locale& tag) {
+  if (StringIsAscii(languageStr)) {
+    intl::StringAsciiChars chars(languageStr);
+    if (!chars.init(cx)) {
+      return false;
+    }
+
+    if (LocaleParser::tryParseBaseName(chars, tag).isOk()) {
+      return true;
+    }
+  }
+
+  ReportInvalidOptionError(cx, "language", languageStr);
+  return false;
+}
+
 static JSString* GetLanguageDisplayName(
     JSContext* cx, Handle<DisplayNamesObject*> displayNames, const char* locale,
     DisplayNamesStyle displayStyle, DisplayNamesLanguageDisplay languageDisplay,
     DisplayNamesFallback fallback, HandleLinearString languageStr) {
-  bool ok;
-  intl::LanguageTag tag(cx);
-  JS_TRY_VAR_OR_RETURN_NULL(
-      cx, ok, intl::LanguageTagParser::tryParseBaseName(cx, languageStr, tag));
-  if (!ok) {
-    ReportInvalidOptionError(cx, "language", languageStr);
+  mozilla::intl::Locale tag;
+  if (!TryParseBaseName(cx, languageStr, tag)) {
     return nullptr;
   }
 
   // ICU always canonicalizes the input locale, but since we know that ICU's
   // canonicalization is incomplete, we need to perform our own canonicalization
   // to ensure consistent result.
-  if (!tag.canonicalizeBaseName(cx)) {
+  if (auto result = tag.canonicalizeBaseName(); result.isErr()) {
+    if (result.unwrapErr() ==
+        mozilla::intl::Locale::CanonicalizationError::DuplicateVariant) {
+      JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
+                                JSMSG_DUPLICATE_VARIANT_SUBTAG);
+    } else {
+      intl::ReportInternalError(cx);
+    }
+
+    return nullptr;
+  }
+
+  intl::FormatBuffer<char> buffer(cx);
+  if (auto result = tag.toString(buffer); result.isErr()) {
+    intl::ReportInternalError(cx, result.unwrapErr());
     return nullptr;
   }
 
-  UniqueChars languageChars = tag.toStringZ(cx);
+  UniqueChars languageChars = buffer.extractStringZ();
   if (!languageChars) {
     return nullptr;
   }
@@ -394,22 +426,24 @@
                                       DisplayNamesStyle displayStyle,
                                       DisplayNamesFallback fallback,
                                       HandleLinearString scriptStr) {
-  intl::ScriptSubtag script;
+  mozilla::intl::ScriptSubtag script;
   if (!intl::ParseStandaloneScriptTag(scriptStr, script)) {
     ReportInvalidOptionError(cx, "script", scriptStr);
     return nullptr;
   }
 
-  intl::LanguageTag tag(cx);
+  mozilla::intl::Locale tag;
   tag.setLanguage("und");
   tag.setScript(script);
 
   // ICU always canonicalizes the input locale, but since we know that ICU's
   // canonicalization is incomplete, we need to perform our own canonicalization
   // to ensure consistent result.
-  if (!tag.canonicalizeBaseName(cx)) {
+  if (tag.canonicalizeBaseName().isErr()) {
+    intl::ReportInternalError(cx);
     return nullptr;
   }
+
   MOZ_ASSERT(tag.script().present());
 
   // |uldn_scriptDisplayName| doesn't use the stand-alone form for script
@@ -419,7 +453,13 @@
   // ICU bug: https://unicode-org.atlassian.net/browse/ICU-9301
   if (displayStyle == DisplayNamesStyle::Long) {
     // |uloc_getDisplayScript| expects a full locale identifier as its input.
-    UniqueChars scriptChars = tag.toStringZ(cx);
+    intl::FormatBuffer<char> buffer(cx);
+    if (auto result = tag.toString(buffer); result.isErr()) {
+      intl::ReportInternalError(cx, result.unwrapErr());
+      return nullptr;
+    }
+
+    UniqueChars scriptChars = buffer.extractStringZ();
     if (!scriptChars) {
       return nullptr;
     }
@@ -452,9 +492,9 @@
   }
 
   // Note: ICU requires the script subtag to be in canonical case.
-  const intl::ScriptSubtag& canonicalScript = tag.script();
+  const mozilla::intl::ScriptSubtag& canonicalScript = tag.script();
 
-  char scriptChars[intl::LanguageTagLimits::ScriptLength + 1] = {};
+  char scriptChars[mozilla::intl::LanguageTagLimits::ScriptLength + 1] = {};
   std::copy_n(canonicalScript.span().data(), canonicalScript.length(),
               scriptChars);
 
@@ -495,28 +535,30 @@
                                       DisplayNamesStyle displayStyle,
                                       DisplayNamesFallback fallback,
                                       HandleLinearString regionStr) {
-  intl::RegionSubtag region;
+  mozilla::intl::RegionSubtag region;
   if (!intl::ParseStandaloneRegionTag(regionStr, region)) {
     ReportInvalidOptionError(cx, "region", regionStr);
     return nullptr;
   }
 
-  intl::LanguageTag tag(cx);
+  mozilla::intl::Locale tag;
   tag.setLanguage("und");
   tag.setRegion(region);
 
   // ICU always canonicalizes the input locale, but since we know that ICU's
   // canonicalization is incomplete, we need to perform our own canonicalization
   // to ensure consistent result.
-  if (!tag.canonicalizeBaseName(cx)) {
+  if (tag.canonicalizeBaseName().isErr()) {
+    intl::ReportInternalError(cx);
     return nullptr;
   }
+
   MOZ_ASSERT(tag.region().present());
 
   // Note: ICU requires the region subtag to be in canonical case.
-  const intl::RegionSubtag& canonicalRegion = tag.region();
+  const mozilla::intl::RegionSubtag& canonicalRegion = tag.region();
 
-  char regionChars[intl::LanguageTagLimits::RegionLength + 1] = {};
+  char regionChars[mozilla::intl::LanguageTagLimits::RegionLength + 1] = {};
   std::copy_n(canonicalRegion.span().data(), canonicalRegion.length(),
               regionChars);
 
@@ -613,21 +655,26 @@
     DisplayNamesStyle displayStyle, DisplayNamesFallback fallback,
     HandleLinearString calendarStr) {
   // Report an error if the input can't be parsed as a Unicode type nonterminal.
-  if (calendarStr->empty() ||
-      !intl::LanguageTagParser::canParseUnicodeExtensionType(calendarStr)) {
+  if (calendarStr->empty() || !StringIsAscii(calendarStr)) {
     ReportInvalidOptionError(cx, "calendar", calendarStr);
     return nullptr;
   }
 
-  MOZ_ASSERT(StringIsAscii(calendarStr), "Unicode extension types are ASCII");
-
   UniqueChars calendar = EncodeAscii(cx, calendarStr);
   if (!calendar) {
     return nullptr;
   }
 
+  if (LocaleParser::canParseUnicodeExtensionType(
+          mozilla::Span(calendar.get(), calendarStr->length()))
+          .isErr()) {
+    ReportInvalidOptionError(cx, "calendar", calendarStr);
+    return nullptr;
+  }
+
   // Convert into canonical case before searching for replacements.
-  intl::AsciiToLowerCase(calendar.get(), calendarStr->length(), calendar.get());
+  mozilla::intl::AsciiToLowerCase(calendar.get(), calendarStr->length(),
+                                  calendar.get());
 
   auto key = mozilla::MakeStringSpan("ca");
   auto type = mozilla::Span(calendar.get(), calendarStr->length());
@@ -635,7 +682,7 @@
   // Search if there's a replacement for the Unicode calendar keyword.
   const char* canonicalCalendar = calendar.get();
   if (const char* replacement =
-          intl::LanguageTag::replaceUnicodeExtensionType(key, type)) {
+          mozilla::intl::Locale::replaceUnicodeExtensionType(key, type)) {
     canonicalCalendar = replacement;
   }
 
@@ -732,9 +779,10 @@
     return names;
   }
 
-  intl::LanguageTag tag(cx);
-  if (!intl::LanguageTagParser::parse(cx, mozilla::MakeStringSpan(locale),
-                                      tag)) {
+  mozilla::intl::Locale tag;
+  if (LocaleParser::tryParse(mozilla::MakeStringSpan(locale), tag).isErr()) {
+    JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
+                              JSMSG_INVALID_LANGUAGE_TAG, locale);
     return nullptr;
   }
 
@@ -747,7 +795,12 @@
     return nullptr;
   }
 
-  UniqueChars localeWithCalendar = tag.toStringZ(cx);
+  intl::FormatBuffer<char> buffer(cx);
+  if (auto result = tag.toString(buffer); result.isErr()) {
+    intl::ReportInternalError(cx, result.unwrapErr());
+    return nullptr;
+  }
+  UniqueChars localeWithCalendar = buffer.extractStringZ();
   if (!localeWithCalendar) {
     return nullptr;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/FormatBuffer.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/FormatBuffer.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/FormatBuffer.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/FormatBuffer.h	2021-10-20 19:28:22.000000000 +0000
@@ -8,7 +8,6 @@
 #define builtin_intl_FormatBuffer_h
 
 #include "mozilla/Assertions.h"
-#include "mozilla/Range.h"
 #include "mozilla/Span.h"
 
 #include <stddef.h>
@@ -16,6 +15,7 @@
 
 #include "gc/Allocator.h"
 #include "js/AllocPolicy.h"
+#include "js/CharacterEncoding.h"
 #include "js/TypeDecls.h"
 #include "js/UniquePtr.h"
 #include "js/Vector.h"
@@ -89,8 +89,7 @@
                   std::is_same_v<CharT, char>) {
       // Handle the UTF-8 encoding case.
       return NewStringCopyUTF8N<CanGC>(
-          cx, mozilla::Range(reinterpret_cast<unsigned char>(buffer_.begin()),
-                             buffer_.length()));
+          cx, JS::UTF8Chars(buffer_.begin(), buffer_.length()));
     } else {
       // Handle the UTF-16 encoding case.
       static_assert(std::is_same_v<CharT, char16_t>);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/IntlObject.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/IntlObject.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/IntlObject.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/IntlObject.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -32,6 +32,7 @@
 #include "builtin/intl/PluralRules.h"
 #include "builtin/intl/RelativeTimeFormat.h"
 #include "builtin/intl/SharedIntlData.h"
+#include "builtin/intl/StringAsciiChars.h"
 #include "ds/Sort.h"
 #include "js/CharacterEncoding.h"
 #include "js/Class.h"
@@ -260,29 +261,54 @@
 
 #ifdef DEBUG
   {
-    intl::LanguageTag tag(cx);
-    bool ok;
-    JS_TRY_VAR_OR_RETURN_FALSE(
-        cx, ok, intl::LanguageTagParser::tryParse(cx, locale, tag));
-    MOZ_ASSERT(ok, "locale is a structurally valid language tag");
+    MOZ_ASSERT(StringIsAscii(locale), "language tags are ASCII-only");
+
+    // |locale| is a structurally valid language tag.
+    mozilla::intl::Locale tag;
+
+    using ParserError = mozilla::intl::LocaleParser::ParserError;
+    mozilla::Result<mozilla::Ok, ParserError> parse_result = Ok();
+    {
+      intl::StringAsciiChars chars(locale);
+      if (!chars.init(cx)) {
+        return false;
+      }
+
+      parse_result = mozilla::intl::LocaleParser::tryParse(chars, tag);
+    }
+
+    if (parse_result.isErr()) {
+      MOZ_ASSERT(parse_result.unwrapErr() == ParserError::OutOfMemory,
+                 "locale is a structurally valid language tag");
+
+      intl::ReportInternalError(cx);
+      return false;
+    }
 
     MOZ_ASSERT(!tag.unicodeExtension(),
                "locale must contain no Unicode extensions");
 
-    if (!tag.canonicalize(cx)) {
+    if (auto result = tag.canonicalize(); result.isErr()) {
+      MOZ_ASSERT(
+          result.unwrapErr() !=
+          mozilla::intl::Locale::CanonicalizationError::DuplicateVariant);
+      intl::ReportInternalError(cx);
       return false;
     }
 
-    JSString* tagStr = tag.toString(cx);
-    if (!tagStr) {
+    intl::FormatBuffer<char, intl::INITIAL_CHAR_BUFFER_SIZE> buffer(cx);
+    if (auto result = tag.toString(buffer); result.isErr()) {
+      intl::ReportInternalError(cx, result.unwrapErr());
       return false;
     }
 
-    bool canonical;
-    if (!EqualStrings(cx, locale, tagStr, &canonical)) {
+    JSLinearString* tagStr = buffer.toString(cx);
+    if (!tagStr) {
       return false;
     }
-    MOZ_ASSERT(canonical, "locale is a canonicalized language tag");
+
+    MOZ_ASSERT(EqualStrings(locale, tagStr),
+               "locale is a canonicalized language tag");
   }
 #endif
 
@@ -318,39 +344,47 @@
     return false;
   }
 
-  intl::LanguageTag tag(cx);
-  bool ok;
-  JS_TRY_VAR_OR_RETURN_FALSE(
-      cx, ok, intl::LanguageTagParser::tryParse(cx, locale, tag));
+  mozilla::intl::Locale tag;
+  bool canParseLocale = false;
+  if (StringIsAscii(locale)) {
+    intl::StringAsciiChars chars(locale);
+    if (!chars.init(cx)) {
+      return false;
+    }
+
+    // Tell the analysis the |tag.canonicalize()| method can't GC.
+    JS::AutoSuppressGCAnalysis nogc;
+
+    canParseLocale = mozilla::intl::LocaleParser::tryParse(chars, tag).isOk() &&
+                     tag.canonicalize().isOk();
+  }
 
   RootedLinearString candidate(cx);
-  if (!ok) {
+  if (!canParseLocale) {
     candidate = NewStringCopyZ<CanGC>(cx, intl::LastDitchLocale());
     if (!candidate) {
       return false;
     }
   } else {
-    if (!tag.canonicalize(cx)) {
-      return false;
-    }
-
     // The default locale must be in [[AvailableLocales]], and that list must
     // not contain any locales with Unicode extension sequences, so remove any
     // present in the candidate.
     tag.clearUnicodeExtension();
 
-    JSString* canonical = tag.toString(cx);
-    if (!canonical) {
+    intl::FormatBuffer<char, intl::INITIAL_CHAR_BUFFER_SIZE> buffer(cx);
+    if (auto result = tag.toString(buffer); result.isErr()) {
+      intl::ReportInternalError(cx, result.unwrapErr());
       return false;
     }
 
-    candidate = canonical->ensureLinear(cx);
+    candidate = buffer.toString(cx);
     if (!candidate) {
       return false;
     }
 
-    // Certain old-style language tags lack a script code, but in current usage
-    // they *would* include a script code. Map these over to modern forms.
+    // Certain old-style language tags lack a script code, but in current
+    // usage they *would* include a script code. Map these over to modern
+    // forms.
     for (const auto& mapping : js::intl::oldStyleLanguageTagMappings) {
       const char* oldStyle = mapping.oldStyle;
       const char* modernStyle = mapping.modernStyle;
@@ -370,8 +404,8 @@
   // - [[AvailableLocales]] is a List [...]. The list must include the value
   //   returned by the DefaultLocale abstract operation (6.2.4), [...].
   //
-  // That implies we must ignore any candidate which isn't supported by all Intl
-  // service constructors.
+  // That implies we must ignore any candidate which isn't supported by all
+  // Intl service constructors.
 
   RootedLinearString supportedCollator(cx);
   JS_TRY_VAR_OR_RETURN_FALSE(
@@ -387,8 +421,8 @@
 
 #ifdef DEBUG
   // Note: We don't test the supported locales of the remaining Intl service
-  // constructors, because the set of supported locales is exactly equal to the
-  // set of supported locales of Intl.DateTimeFormat.
+  // constructors, because the set of supported locales is exactly equal to
+  // the set of supported locales of Intl.DateTimeFormat.
   for (auto kind :
        {SupportedLocaleKind::DisplayNames, SupportedLocaleKind::ListFormat,
         SupportedLocaleKind::NumberFormat, SupportedLocaleKind::PluralRules,
@@ -558,9 +592,10 @@
   Rooted<StringList> list(cx, StringList(cx));
 
   {
-    // Hazard analysis complains that the mozilla::Result destructor calls a GC
-    // function, which is unsound when returning an unrooted value. Work around
-    // this issue by restricting the lifetime of |keywords| to a separate block.
+    // Hazard analysis complains that the mozilla::Result destructor calls a
+    // GC function, which is unsound when returning an unrooted value. Work
+    // around this issue by restricting the lifetime of |keywords| to a
+    // separate block.
     auto keywords = mozilla::intl::Calendar::GetBcp47KeywordValuesForLocale("");
     if (keywords.isErr()) {
       intl::ReportInternalError(cx, keywords.unwrapErr());
@@ -599,9 +634,10 @@
   Rooted<StringList> list(cx, StringList(cx));
 
   {
-    // Hazard analysis complains that the mozilla::Result destructor calls a GC
-    // function, which is unsound when returning an unrooted value. Work around
-    // this issue by restricting the lifetime of |keywords| to a separate block.
+    // Hazard analysis complains that the mozilla::Result destructor calls a
+    // GC function, which is unsound when returning an unrooted value. Work
+    // around this issue by restricting the lifetime of |keywords| to a
+    // separate block.
     auto keywords = mozilla::intl::Collator::GetBcp47KeywordValues();
     if (keywords.isErr()) {
       intl::ReportInternalError(cx, keywords.unwrapErr());
@@ -617,13 +653,15 @@
 
   // |ucol_getKeywordValues| returns the possible collations for all installed
   // locales. The root locale is excluded in the list of installed locales, so
-  // we have to explicitly request the available collations of the root locale.
+  // we have to explicitly request the available collations of the root
+  // locale.
   //
   // https://unicode-org.atlassian.net/browse/ICU-21641
   {
-    // Hazard analysis complains that the mozilla::Result destructor calls a GC
-    // function, which is unsound when returning an unrooted value. Work around
-    // this issue by restricting the lifetime of |keywords| to a separate block.
+    // Hazard analysis complains that the mozilla::Result destructor calls a
+    // GC function, which is unsound when returning an unrooted value. Work
+    // around this issue by restricting the lifetime of |keywords| to a
+    // separate block.
     auto keywords = mozilla::intl::Collator::GetBcp47KeywordValuesForLocale("");
     if (keywords.isErr()) {
       intl::ReportInternalError(cx, keywords.unwrapErr());
@@ -677,9 +715,10 @@
   Rooted<StringList> list(cx, StringList(cx));
 
   {
-    // Hazard analysis complains that the mozilla::Result destructor calls a GC
-    // function, which is unsound when returning an unrooted value. Work around
-    // this issue by restricting the lifetime of |keywords| to a separate block.
+    // Hazard analysis complains that the mozilla::Result destructor calls a
+    // GC function, which is unsound when returning an unrooted value. Work
+    // around this issue by restricting the lifetime of |keywords| to a
+    // separate block.
     auto currencies = mozilla::intl::Currency::GetISOCurrencies();
     if (currencies.isErr()) {
       intl::ReportInternalError(cx, currencies.unwrapErr());
@@ -723,7 +762,8 @@
  * AvailableTimeZones ( )
  */
 static ArrayObject* AvailableTimeZones(JSContext* cx) {
-  // Unsorted list of canonical time zone names, possibly containing duplicates.
+  // Unsorted list of canonical time zone names, possibly containing
+  // duplicates.
   Rooted<StringList> timeZones(cx, StringList(cx));
 
   intl::SharedIntlData& sharedIntlData = cx->runtime()->sharedIntlData.ref();
@@ -740,8 +780,8 @@
 
     // Canonicalize the time zone before adding it to the result array.
 
-    // Some time zone names are canonicalized differently by ICU -- handle those
-    // first.
+    // Some time zone names are canonicalized differently by ICU -- handle
+    // those first.
     ianaTimeZone.set(nullptr);
     if (!sharedIntlData.tryCanonicalizeTimeZoneConsistentWithIANA(
             cx, validatedTimeZone, &ianaTimeZone)) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/LanguageTag.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/LanguageTag.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/LanguageTag.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/LanguageTag.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -6,1587 +6,52 @@
 
 #include "builtin/intl/LanguageTag.h"
 
-#include "mozilla/Assertions.h"
-#include "mozilla/DebugOnly.h"
-#include "mozilla/MathAlgorithms.h"
+#include "mozilla/intl/Locale.h"
 #include "mozilla/Span.h"
-#include "mozilla/TextUtils.h"
-#include "mozilla/Variant.h"
 
-#include <algorithm>
-#include <iterator>
-#include <stddef.h>
-#include <stdint.h>
-#include <string>
-#include <string.h>
-#include <type_traits>
-#include <utility>
-
-#include "builtin/intl/CommonFunctions.h"
-#include "ds/Sort.h"
+#include "builtin/intl/StringAsciiChars.h"
 #include "gc/Tracer.h"
-#include "js/friend/ErrorMessages.h"  // js::GetErrorMessage, JSMSG_*
-#include "js/Result.h"
+#include "js/CharacterEncoding.h"
 #include "js/TracingAPI.h"
-#include "js/Utility.h"
-#include "js/Vector.h"
-#include "unicode/uloc.h"
-#include "unicode/utypes.h"
-#include "util/StringBuffer.h"
-#include "util/Text.h"
 #include "vm/JSContext.h"
-#include "vm/Printer.h"
-#include "vm/StringType.h"
 
 namespace js {
 namespace intl {
 
-using namespace js::intl::LanguageTagLimits;
-
-template <typename CharT>
-bool IsStructurallyValidLanguageTag(mozilla::Span<const CharT> language) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  // unicode_language_subtag = alpha{2,3} | alpha{5,8};
-  size_t length = language.size();
-  const CharT* str = language.data();
-  return ((2 <= length && length <= 3) || (5 <= length && length <= 8)) &&
-         std::all_of(str, str + length, mozilla::IsAsciiAlpha<CharT>);
-}
-
-template bool IsStructurallyValidLanguageTag(
-    mozilla::Span<const char> language);
-template bool IsStructurallyValidLanguageTag(
-    mozilla::Span<const Latin1Char> language);
-template bool IsStructurallyValidLanguageTag(
-    mozilla::Span<const char16_t> language);
-
-template <typename CharT>
-bool IsStructurallyValidScriptTag(mozilla::Span<const CharT> script) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  // unicode_script_subtag = alpha{4} ;
-  size_t length = script.size();
-  const CharT* str = script.data();
-  return length == 4 &&
-         std::all_of(str, str + length, mozilla::IsAsciiAlpha<CharT>);
-}
-
-template bool IsStructurallyValidScriptTag(mozilla::Span<const char> script);
-template bool IsStructurallyValidScriptTag(
-    mozilla::Span<const Latin1Char> script);
-template bool IsStructurallyValidScriptTag(
-    mozilla::Span<const char16_t> script);
-
-template <typename CharT>
-bool IsStructurallyValidRegionTag(mozilla::Span<const CharT> region) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  // unicode_region_subtag = (alpha{2} | digit{3}) ;
-  size_t length = region.size();
-  const CharT* str = region.data();
-  return (length == 2 &&
-          std::all_of(str, str + length, mozilla::IsAsciiAlpha<CharT>)) ||
-         (length == 3 &&
-          std::all_of(str, str + length, mozilla::IsAsciiDigit<CharT>));
-}
-
-template bool IsStructurallyValidRegionTag(mozilla::Span<const char> region);
-template bool IsStructurallyValidRegionTag(
-    mozilla::Span<const Latin1Char> region);
-template bool IsStructurallyValidRegionTag(
-    mozilla::Span<const char16_t> region);
-
-#ifdef DEBUG
-bool IsStructurallyValidVariantTag(mozilla::Span<const char> variant) {
-  // unicode_variant_subtag = (alphanum{5,8} | digit alphanum{3}) ;
-  size_t length = variant.size();
-  const char* str = variant.data();
-  return ((5 <= length && length <= 8) ||
-          (length == 4 && mozilla::IsAsciiDigit(str[0]))) &&
-         std::all_of(str, str + length, mozilla::IsAsciiAlphanumeric<char>);
-}
-
-bool IsStructurallyValidUnicodeExtensionTag(
-    mozilla::Span<const char> extension) {
-  return LanguageTagParser::canParseUnicodeExtension(extension);
-}
-
-static bool IsStructurallyValidExtensionTag(
-    mozilla::Span<const char> extension) {
-  // other_extensions = sep [alphanum-[tTuUxX]] (sep alphanum{2,8})+ ;
-  // NB: Allow any extension, including Unicode and Transform here, because
-  // this function is only used for an assertion.
-
-  size_t length = extension.size();
-  const char* str = extension.data();
-  const char* const end = extension.data() + length;
-  if (length <= 2) {
-    return false;
-  }
-  if (!mozilla::IsAsciiAlphanumeric(str[0]) || str[0] == 'x' || str[0] == 'X') {
-    return false;
-  }
-  str++;
-  if (*str++ != '-') {
-    return false;
-  }
-  while (true) {
-    const char* sep =
-        reinterpret_cast<const char*>(memchr(str, '-', end - str));
-    size_t len = (sep ? sep : end) - str;
-    if (len < 2 || len > 8 ||
-        !std::all_of(str, str + len, mozilla::IsAsciiAlphanumeric<char>)) {
+[[nodiscard]] bool ParseLocale(JSContext* cx, HandleLinearString str,
+                               mozilla::intl::Locale& result) {
+  if (StringIsAscii(str)) {
+    intl::StringAsciiChars chars(str);
+    if (!chars.init(cx)) {
       return false;
     }
-    if (!sep) {
-      return true;
-    }
-    str = sep + 1;
-  }
-}
-
-bool IsStructurallyValidPrivateUseTag(mozilla::Span<const char> privateUse) {
-  // pu_extensions = sep [xX] (sep alphanum{1,8})+ ;
 
-  size_t length = privateUse.size();
-  const char* str = privateUse.data();
-  const char* const end = privateUse.data() + length;
-  if (length <= 2) {
-    return false;
-  }
-  if (str[0] != 'x' && str[0] != 'X') {
-    return false;
-  }
-  str++;
-  if (*str++ != '-') {
-    return false;
-  }
-  while (true) {
-    const char* sep =
-        reinterpret_cast<const char*>(memchr(str, '-', end - str));
-    size_t len = (sep ? sep : end) - str;
-    if (len == 0 || len > 8 ||
-        !std::all_of(str, str + len, mozilla::IsAsciiAlphanumeric<char>)) {
-      return false;
-    }
-    if (!sep) {
+    if (mozilla::intl::LocaleParser::tryParse(chars, result).isOk()) {
       return true;
     }
-    str = sep + 1;
-  }
-}
-#endif
-
-ptrdiff_t LanguageTag::unicodeExtensionIndex() const {
-  // The extension subtags aren't necessarily sorted, so we can't use binary
-  // search here.
-  auto p = std::find_if(
-      extensions().begin(), extensions().end(),
-      [](const auto& ext) { return ext[0] == 'u' || ext[0] == 'U'; });
-  if (p != extensions().end()) {
-    return std::distance(extensions().begin(), p);
-  }
-  return -1;
-}
-
-const char* LanguageTag::unicodeExtension() const {
-  ptrdiff_t index = unicodeExtensionIndex();
-  if (index >= 0) {
-    return extensions()[index].get();
-  }
-  return nullptr;
-}
-
-bool LanguageTag::setUnicodeExtension(UniqueChars extension) {
-  MOZ_ASSERT(IsStructurallyValidUnicodeExtensionTag(
-      mozilla::MakeStringSpan(extension.get())));
-
-  // Replace the existing Unicode extension subtag or append a new one.
-  ptrdiff_t index = unicodeExtensionIndex();
-  if (index >= 0) {
-    extensions_[index] = std::move(extension);
-    return true;
-  }
-  return extensions_.append(std::move(extension));
-}
-
-void LanguageTag::clearUnicodeExtension() {
-  ptrdiff_t index = unicodeExtensionIndex();
-  if (index >= 0) {
-    extensions_.erase(extensions_.begin() + index);
-  }
-}
-
-template <size_t InitialCapacity>
-static bool SortAlphabetically(JSContext* cx,
-                               Vector<UniqueChars, InitialCapacity>& subtags) {
-  size_t length = subtags.length();
-
-  // Zero or one element lists are already sorted.
-  if (length < 2) {
-    return true;
-  }
-
-  // Handle two element lists inline.
-  if (length == 2) {
-    if (strcmp(subtags[0].get(), subtags[1].get()) > 0) {
-      subtags[0].swap(subtags[1]);
-    }
-    return true;
-  }
-
-  Vector<char*, 8> scratch(cx);
-  if (!scratch.resizeUninitialized(length * 2)) {
-    return false;
-  }
-  for (size_t i = 0; i < length; i++) {
-    scratch[i] = subtags[i].release();
-  }
-
-  MOZ_ALWAYS_TRUE(
-      MergeSort(scratch.begin(), length, scratch.begin() + length,
-                [](const char* a, const char* b, bool* lessOrEqualp) {
-                  *lessOrEqualp = strcmp(a, b) <= 0;
-                  return true;
-                }));
-
-  for (size_t i = 0; i < length; i++) {
-    subtags[i] = UniqueChars(scratch[i]);
-  }
-  return true;
-}
-
-bool LanguageTag::canonicalizeBaseName(JSContext* cx) {
-  // Per 6.2.3 CanonicalizeUnicodeLocaleId, the very first step is to
-  // canonicalize the syntax by normalizing the case and ordering all subtags.
-  // The canonical syntax form is specified in UTS 35, 3.2.1.
-
-  // Language codes need to be in lower case. "JA" -> "ja"
-  language_.toLowerCase();
-  MOZ_ASSERT(IsStructurallyValidLanguageTag(language().span()));
-
-  // The first character of a script code needs to be capitalized.
-  // "hans" -> "Hans"
-  script_.toTitleCase();
-  MOZ_ASSERT(script().missing() ||
-             IsStructurallyValidScriptTag(script().span()));
-
-  // Region codes need to be in upper case. "bu" -> "BU"
-  region_.toUpperCase();
-  MOZ_ASSERT(region().missing() ||
-             IsStructurallyValidRegionTag(region().span()));
-
-  // The canonical case for variant subtags is lowercase.
-  for (UniqueChars& variant : variants_) {
-    char* variantChars = variant.get();
-    size_t variantLength = strlen(variantChars);
-    AsciiToLowerCase(variantChars, variantLength, variantChars);
-
-    MOZ_ASSERT(IsStructurallyValidVariantTag({variantChars, variantLength}));
-  }
-
-  // Extensions and privateuse subtags are case normalized in the
-  // |canonicalizeExtensions| method.
-
-  // The second step in UTS 35, 3.2.1, is to order all subtags.
-
-  if (variants_.length() > 1) {
-    // 1. Any variants are in alphabetical order.
-    if (!SortAlphabetically(cx, variants_)) {
-      return false;
-    }
-
-    // Reject the Locale identifier if a duplicate variant was found, e.g.
-    // "en-variant-Variant".
-    const UniqueChars* duplicate = std::adjacent_find(
-        variants().begin(), variants().end(), [](const auto& a, const auto& b) {
-          return strcmp(a.get(), b.get()) == 0;
-        });
-    if (duplicate != variants().end()) {
-      JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
-                                JSMSG_DUPLICATE_VARIANT_SUBTAG,
-                                duplicate->get());
-      return false;
-    }
-  }
-
-  // 2. Any extensions are in alphabetical order by their singleton.
-  // 3. All attributes are sorted in alphabetical order.
-  // 4. All keywords and tfields are sorted by alphabetical order of their keys,
-  //    within their respective extensions.
-  // 5. Any type or tfield value "true" is removed.
-  // - A subsequent call to canonicalizeExtensions() will perform these steps.
-
-  // 6.2.3 CanonicalizeUnicodeLocaleId, step 2 transforms the locale identifier
-  // into its canonical form per UTS 3.2.1.
-
-  // 1. Use the bcp47 data to replace keys, types, tfields, and tvalues by their
-  // canonical forms.
-  // - A subsequent call to canonicalizeExtensions() will perform this step.
-
-  // 2. Replace aliases in the unicode_language_id and tlang (if any).
-  // - tlang is handled in canonicalizeExtensions().
-
-  // Replace deprecated language, region, and variant subtags with their
-  // preferred mappings.
-
-  if (!updateLegacyMappings(cx)) {
-    return false;
-  }
-
-  // Replace deprecated language subtags with their preferred values.
-  if (!languageMapping(language_) && complexLanguageMapping(language_)) {
-    performComplexLanguageMappings();
-  }
-
-  // Replace deprecated script subtags with their preferred values.
-  if (script().present()) {
-    scriptMapping(script_);
-  }
-
-  // Replace deprecated region subtags with their preferred values.
-  if (region().present()) {
-    if (!regionMapping(region_) && complexRegionMapping(region_)) {
-      performComplexRegionMappings();
-    }
-  }
-
-  // Replace deprecated variant subtags with their preferred values.
-  if (!performVariantMappings(cx)) {
-    return false;
-  }
-
-  // No extension replacements are currently present.
-  // Private use sequences are left as is.
-
-  // 3. Replace aliases in special key values.
-  // - A subsequent call to canonicalizeExtensions() will perform this step.
-
-  return true;
-}
-
-#ifdef DEBUG
-template <typename CharT>
-static bool IsAsciiLowercaseAlphanumericOrDash(
-    mozilla::Span<const CharT> span) {
-  const CharT* ptr = span.data();
-  size_t length = span.size();
-  return std::all_of(ptr, ptr + length, [](auto c) {
-    return mozilla::IsAsciiLowercaseAlpha(c) || mozilla::IsAsciiDigit(c) ||
-           c == '-';
-  });
-}
-#endif
-
-bool LanguageTag::canonicalizeExtensions(JSContext* cx) {
-  // The canonical case for all extension subtags is lowercase.
-  for (UniqueChars& extension : extensions_) {
-    char* extensionChars = extension.get();
-    size_t extensionLength = strlen(extensionChars);
-    AsciiToLowerCase(extensionChars, extensionLength, extensionChars);
-
-    MOZ_ASSERT(
-        IsStructurallyValidExtensionTag({extensionChars, extensionLength}));
-  }
-
-  // Any extensions are in alphabetical order by their singleton.
-  // "u-ca-chinese-t-zh-latn" -> "t-zh-latn-u-ca-chinese"
-  if (!SortAlphabetically(cx, extensions_)) {
-    return false;
-  }
-
-  for (UniqueChars& extension : extensions_) {
-    if (extension[0] == 'u') {
-      if (!canonicalizeUnicodeExtension(cx, extension)) {
-        return false;
-      }
-    } else if (extension[0] == 't') {
-      if (!canonicalizeTransformExtension(cx, extension)) {
-        return false;
-      }
-    }
-
-    MOZ_ASSERT(IsAsciiLowercaseAlphanumericOrDash(
-        mozilla::MakeStringSpan(extension.get())));
-  }
-
-  // The canonical case for privateuse subtags is lowercase.
-  if (char* privateuse = privateuse_.get()) {
-    size_t privateuseLength = strlen(privateuse);
-    AsciiToLowerCase(privateuse, privateuseLength, privateuse);
-
-    MOZ_ASSERT(
-        IsStructurallyValidPrivateUseTag({privateuse, privateuseLength}));
-  }
-  return true;
-}
-
-/**
- * CanonicalizeUnicodeExtension( attributes, keywords )
- *
- * Canonical syntax per
- * <https://unicode.org/reports/tr35/#Canonical_Unicode_Locale_Identifiers>:
- *
- * - All attributes and keywords are in lowercase.
- *   - Note: The parser already converted keywords to lowercase.
- * - All attributes are sorted in alphabetical order.
- * - All keywords are sorted by alphabetical order of their keys.
- * - Any type value "true" is removed.
- *
- * Canonical form:
- * - All keys and types use the canonical form (from the name attribute;
- *   see Section 3.6.4 U Extension Data Files).
- */
-bool LanguageTag::canonicalizeUnicodeExtension(
-    JSContext* cx, JS::UniqueChars& unicodeExtension) {
-  const char* const extension = unicodeExtension.get();
-  MOZ_ASSERT(extension[0] == 'u');
-  MOZ_ASSERT(extension[1] == '-');
-  MOZ_ASSERT(
-      IsStructurallyValidExtensionTag(mozilla::MakeStringSpan(extension)));
-
-  size_t length = strlen(extension);
-
-  LanguageTagParser::AttributesVector attributes(cx);
-  LanguageTagParser::KeywordsVector keywords(cx);
-
-  using Attribute = LanguageTagParser::AttributesVector::ElementType;
-  using Keyword = LanguageTagParser::KeywordsVector::ElementType;
-
-  mozilla::DebugOnly<bool> ok;
-  JS_TRY_VAR_OR_RETURN_FALSE(
-      cx, ok,
-      LanguageTagParser::parseUnicodeExtension(
-          cx, mozilla::Span(extension, length), attributes, keywords));
-  MOZ_ASSERT(ok, "unexpected invalid Unicode extension subtag");
-
-  auto attributesLessOrEqual = [extension](const Attribute& a,
-                                           const Attribute& b) {
-    const char* astr = a.begin(extension);
-    const char* bstr = b.begin(extension);
-    size_t alen = a.length();
-    size_t blen = b.length();
-
-    if (int r =
-            std::char_traits<char>::compare(astr, bstr, std::min(alen, blen))) {
-      return r < 0;
-    }
-    return alen <= blen;
-  };
-
-  // All attributes are sorted in alphabetical order.
-  size_t attributesLength = attributes.length();
-  if (attributesLength > 1) {
-    if (!attributes.growByUninitialized(attributesLength)) {
-      return false;
-    }
-
-    MOZ_ALWAYS_TRUE(
-        MergeSort(attributes.begin(), attributesLength,
-                  attributes.begin() + attributesLength,
-                  [&](const auto& a, const auto& b, bool* lessOrEqualp) {
-                    *lessOrEqualp = attributesLessOrEqual(a, b);
-                    return true;
-                  }));
-
-    attributes.shrinkBy(attributesLength);
-  }
-
-  auto keywordsLessOrEqual = [extension](const Keyword& a, const Keyword& b) {
-    const char* astr = a.begin(extension);
-    const char* bstr = b.begin(extension);
-    MOZ_ASSERT(a.length() >= UnicodeKeyLength);
-    MOZ_ASSERT(b.length() >= UnicodeKeyLength);
-
-    return std::char_traits<char>::compare(astr, bstr, UnicodeKeyLength) <= 0;
-  };
-
-  // All keywords are sorted by alphabetical order of keys.
-  size_t keywordsLength = keywords.length();
-  if (keywordsLength > 1) {
-    if (!keywords.growByUninitialized(keywordsLength)) {
-      return false;
-    }
-
-    // Using merge sort, being a stable sort algorithm, guarantees that two
-    // keywords using the same key are never reordered. That means for example
-    // when we have the input "u-nu-thai-kf-false-nu-latn", we are guaranteed to
-    // get the result "u-kf-false-nu-thai-nu-latn", i.e. "nu-thai" still occurs
-    // before "nu-latn".
-    // This is required so that deduplication below preserves the first keyword
-    // for a given key and discards the rest.
-    MOZ_ALWAYS_TRUE(MergeSort(
-        keywords.begin(), keywordsLength, keywords.begin() + keywordsLength,
-        [&](const auto& a, const auto& b, bool* lessOrEqualp) {
-          *lessOrEqualp = keywordsLessOrEqual(a, b);
-          return true;
-        }));
-
-    keywords.shrinkBy(keywordsLength);
-  }
-
-  Vector<char, 32> sb(cx);
-  if (!sb.append('u')) {
-    return false;
-  }
-
-  // Append all Unicode extension attributes.
-  for (size_t i = 0; i < attributes.length(); i++) {
-    const auto& attribute = attributes[i];
-
-    // Skip duplicate attributes.
-    if (i > 0) {
-      const auto& lastAttribute = attributes[i - 1];
-      if (attribute.length() == lastAttribute.length() &&
-          std::char_traits<char>::compare(attribute.begin(extension),
-                                          lastAttribute.begin(extension),
-                                          attribute.length()) == 0) {
-        continue;
-      }
-      MOZ_ASSERT(!attributesLessOrEqual(attribute, lastAttribute));
-    }
-
-    if (!sb.append('-')) {
-      return false;
-    }
-    if (!sb.append(attribute.begin(extension), attribute.length())) {
-      return false;
-    }
-  }
-
-  static constexpr size_t UnicodeKeyWithSepLength = UnicodeKeyLength + 1;
-
-  using StringSpan = mozilla::Span<const char>;
-
-  static auto isTrue = [](StringSpan type) {
-    static constexpr char True[] = "true";
-    constexpr size_t TrueLength = std::char_traits<char>::length(True);
-    return type.size() == TrueLength &&
-           std::char_traits<char>::compare(type.data(), True, TrueLength) == 0;
-  };
-
-  auto appendKey = [&sb, extension](const Keyword& keyword) {
-    MOZ_ASSERT(keyword.length() == UnicodeKeyLength);
-    return sb.append(keyword.begin(extension), UnicodeKeyLength);
-  };
-
-  auto appendKeyword = [&sb, extension](const Keyword& keyword,
-                                        StringSpan type) {
-    MOZ_ASSERT(keyword.length() > UnicodeKeyLength);
-
-    // Elide the Unicode extension type "true".
-    if (isTrue(type)) {
-      return sb.append(keyword.begin(extension), UnicodeKeyLength);
-    }
-    // Otherwise append the complete Unicode extension keyword.
-    return sb.append(keyword.begin(extension), keyword.length());
-  };
-
-  auto appendReplacement = [&sb, extension](const Keyword& keyword,
-                                            StringSpan replacement) {
-    MOZ_ASSERT(keyword.length() > UnicodeKeyLength);
-
-    // Elide the type "true" if present in the replacement.
-    if (isTrue(replacement)) {
-      return sb.append(keyword.begin(extension), UnicodeKeyLength);
-    }
-    // Otherwise append the Unicode key (including the separator) and the
-    // replaced type.
-    return sb.append(keyword.begin(extension), UnicodeKeyWithSepLength) &&
-           sb.append(replacement.data(), replacement.size());
-  };
-
-  // Append all Unicode extension keywords.
-  for (size_t i = 0; i < keywords.length(); i++) {
-    const auto& keyword = keywords[i];
-
-    // Skip duplicate keywords.
-    if (i > 0) {
-      const auto& lastKeyword = keywords[i - 1];
-      if (std::char_traits<char>::compare(keyword.begin(extension),
-                                          lastKeyword.begin(extension),
-                                          UnicodeKeyLength) == 0) {
-        continue;
-      }
-      MOZ_ASSERT(!keywordsLessOrEqual(keyword, lastKeyword));
-    }
-
-    if (!sb.append('-')) {
-      return false;
-    }
-
-    if (keyword.length() == UnicodeKeyLength) {
-      // Keyword without type value.
-      if (!appendKey(keyword)) {
-        return false;
-      }
-    } else {
-      StringSpan key(keyword.begin(extension), UnicodeKeyLength);
-      StringSpan type(keyword.begin(extension) + UnicodeKeyWithSepLength,
-                      keyword.length() - UnicodeKeyWithSepLength);
-
-      // Search if there's a replacement for the current Unicode keyword.
-      if (const char* replacement = replaceUnicodeExtensionType(key, type)) {
-        if (!appendReplacement(keyword, mozilla::MakeStringSpan(replacement))) {
-          return false;
-        }
-      } else {
-        if (!appendKeyword(keyword, type)) {
-          return false;
-        }
-      }
-    }
-  }
-
-  // We can keep the previous extension when canonicalization didn't modify it.
-  if (sb.length() != length ||
-      std::char_traits<char>::compare(sb.begin(), extension, length) != 0) {
-    // Null-terminate the new string and replace the previous extension.
-    if (!sb.append('\0')) {
-      return false;
-    }
-    UniqueChars canonical(sb.extractOrCopyRawBuffer());
-    if (!canonical) {
-      return false;
-    }
-    unicodeExtension = std::move(canonical);
-  }
-
-  return true;
-}
-
-template <class Buffer>
-static bool LanguageTagToString(JSContext* cx, const LanguageTag& tag,
-                                Buffer& sb) {
-  auto appendSubtag = [&sb](const auto& subtag) {
-    auto span = subtag.span();
-    MOZ_ASSERT(!span.empty());
-    return sb.append(span.data(), span.size());
-  };
-
-  auto appendSubtagZ = [&sb](const char* subtag) {
-    MOZ_ASSERT(strlen(subtag) > 0);
-    return sb.append(subtag, strlen(subtag));
-  };
-
-  auto appendSubtagsZ = [&sb, &appendSubtagZ](const auto& subtags) {
-    for (const auto& subtag : subtags) {
-      if (!sb.append('-') || !appendSubtagZ(subtag.get())) {
-        return false;
-      }
-    }
-    return true;
-  };
-
-  // Append the language subtag.
-  if (!appendSubtag(tag.language())) {
-    return false;
-  }
-
-  // Append the script subtag if present.
-  if (tag.script().present()) {
-    if (!sb.append('-') || !appendSubtag(tag.script())) {
-      return false;
-    }
-  }
-
-  // Append the region subtag if present.
-  if (tag.region().present()) {
-    if (!sb.append('-') || !appendSubtag(tag.region())) {
-      return false;
-    }
-  }
-
-  // Append the variant subtags if present.
-  if (!appendSubtagsZ(tag.variants())) {
-    return false;
-  }
-
-  // Append the extensions subtags if present.
-  if (!appendSubtagsZ(tag.extensions())) {
-    return false;
-  }
-
-  // Append the private-use subtag if present.
-  if (tag.privateuse()) {
-    if (!sb.append('-') || !appendSubtagZ(tag.privateuse())) {
-      return false;
-    }
-  }
-
-  return true;
-}
-
-/**
- * CanonicalizeTransformExtension
- *
- * Canonical form per <https://unicode.org/reports/tr35/#BCP47_T_Extension>:
- *
- * - These subtags are all in lowercase (that is the canonical casing for these
- *   subtags), [...].
- *
- * And per
- * <https://unicode.org/reports/tr35/#Canonical_Unicode_Locale_Identifiers>:
- *
- * - All keywords and tfields are sorted by alphabetical order of their keys,
- *   within their respective extensions.
- */
-bool LanguageTag::canonicalizeTransformExtension(
-    JSContext* cx, JS::UniqueChars& transformExtension) {
-  const char* const extension = transformExtension.get();
-  MOZ_ASSERT(extension[0] == 't');
-  MOZ_ASSERT(extension[1] == '-');
-  MOZ_ASSERT(
-      IsStructurallyValidExtensionTag(mozilla::MakeStringSpan(extension)));
-
-  size_t length = strlen(extension);
-
-  LanguageTag tag(cx);
-  LanguageTagParser::TFieldVector fields(cx);
-
-  using TField = LanguageTagParser::TFieldVector::ElementType;
-
-  mozilla::DebugOnly<bool> ok;
-  JS_TRY_VAR_OR_RETURN_FALSE(
-      cx, ok,
-      LanguageTagParser::parseTransformExtension(
-          cx, mozilla::Span(extension, length), tag, fields));
-  MOZ_ASSERT(ok, "unexpected invalid transform extension subtag");
-
-  auto tfieldLessOrEqual = [extension](const TField& a, const TField& b) {
-    MOZ_ASSERT(a.length() > TransformKeyLength);
-    MOZ_ASSERT(b.length() > TransformKeyLength);
-    const char* astr = a.begin(extension);
-    const char* bstr = b.begin(extension);
-    return std::char_traits<char>::compare(astr, bstr, TransformKeyLength) <= 0;
-  };
-
-  // All tfields are sorted by alphabetical order of their keys.
-  if (size_t fieldsLength = fields.length(); fieldsLength > 1) {
-    if (!fields.growByUninitialized(fieldsLength)) {
-      return false;
-    }
-
-    MOZ_ALWAYS_TRUE(
-        MergeSort(fields.begin(), fieldsLength, fields.begin() + fieldsLength,
-                  [&](const auto& a, const auto& b, bool* lessOrEqualp) {
-                    *lessOrEqualp = tfieldLessOrEqual(a, b);
-                    return true;
-                  }));
-
-    fields.shrinkBy(fieldsLength);
   }
 
-  Vector<char, 32> sb(cx);
-  if (!sb.append('t')) {
-    return false;
-  }
-
-  // Append the language subtag if present.
-  //
-  // Replace aliases in tlang per
-  // <https://unicode.org/reports/tr35/#Canonical_Unicode_Locale_Identifiers>.
-  if (tag.language().present()) {
-    if (!sb.append('-')) {
-      return false;
-    }
-
-    if (!tag.canonicalizeBaseName(cx)) {
-      return false;
-    }
-
-    // The canonical case for Transform extensions is lowercase per
-    // <https://unicode.org/reports/tr35/#BCP47_T_Extension>. Convert the two
-    // subtags which don't use lowercase for their canonical syntax.
-    tag.script_.toLowerCase();
-    tag.region_.toLowerCase();
-
-    if (!LanguageTagToString(cx, tag, sb)) {
-      return false;
-    }
-  }
-
-  static constexpr size_t TransformKeyWithSepLength = TransformKeyLength + 1;
-
-  using StringSpan = mozilla::Span<const char>;
-
-  // Append all fields.
-  //
-  // UTS 35, 3.2.1 specifies:
-  // - Any type or tfield value "true" is removed.
-  //
-  // But the `tvalue` subtag is mandatory in `tfield: tkey tvalue`, so ignore
-  // this apparently invalid part of the UTS 35 specification and simply
-  // append all `tfield` subtags.
-  for (const auto& field : fields) {
-    if (!sb.append('-')) {
-      return false;
-    }
-
-    StringSpan key(field.begin(extension), TransformKeyLength);
-    StringSpan value(field.begin(extension) + TransformKeyWithSepLength,
-                     field.length() - TransformKeyWithSepLength);
-
-    // Search if there's a replacement for the current transform keyword.
-    if (const char* replacement = replaceTransformExtensionType(key, value)) {
-      if (!sb.append(field.begin(extension), TransformKeyWithSepLength)) {
-        return false;
-      }
-      if (!sb.append(replacement, strlen(replacement))) {
-        return false;
-      }
-    } else {
-      if (!sb.append(field.begin(extension), field.length())) {
-        return false;
-      }
-    }
-  }
-
-  // We can keep the previous extension when canonicalization didn't modify it.
-  if (sb.length() != length ||
-      std::char_traits<char>::compare(sb.begin(), extension, length) != 0) {
-    // Null-terminate the new string and replace the previous extension.
-    if (!sb.append('\0')) {
-      return false;
-    }
-    UniqueChars canonical(sb.extractOrCopyRawBuffer());
-    if (!canonical) {
-      return false;
-    }
-    transformExtension = std::move(canonical);
-  }
-
-  return true;
-}
-
-JSString* LanguageTag::toString(JSContext* cx) const {
-  JSStringBuilder sb(cx);
-  if (!LanguageTagToString(cx, *this, sb)) {
-    return nullptr;
-  }
-
-  return sb.finishString();
-}
-
-UniqueChars LanguageTag::toStringZ(JSContext* cx) const {
-  Vector<char, 16> sb(cx);
-  if (!LanguageTagToString(cx, *this, sb)) {
-    return nullptr;
-  }
-  if (!sb.append('\0')) {
-    return nullptr;
-  }
-
-  return UniqueChars(sb.extractOrCopyRawBuffer());
-}
-
-// Zero-terminated ICU Locale ID.
-using LocaleId =
-    js::Vector<char, LanguageLength + 1 + ScriptLength + 1 + RegionLength + 1>;
-
-enum class LikelySubtags : bool { Add, Remove };
-
-// Return true iff the language tag is already maximized resp. minimized.
-static bool HasLikelySubtags(LikelySubtags likelySubtags,
-                             const LanguageTag& tag) {
-  // The language tag is already maximized if the language, script, and region
-  // subtags are present and no placeholder subtags ("und", "Zzzz", "ZZ") are
-  // used.
-  if (likelySubtags == LikelySubtags::Add) {
-    return !tag.language().equalTo("und") &&
-           (tag.script().present() && !tag.script().equalTo("Zzzz")) &&
-           (tag.region().present() && !tag.region().equalTo("ZZ"));
-  }
-
-  // The language tag is already minimized if it only contains a language
-  // subtag whose value is not the placeholder value "und".
-  return !tag.language().equalTo("und") && tag.script().missing() &&
-         tag.region().missing();
-}
-
-// Create an ICU locale ID from the given language tag.
-static bool CreateLocaleForLikelySubtags(const LanguageTag& tag,
-                                         LocaleId& locale) {
-  MOZ_ASSERT(locale.length() == 0);
-
-  auto appendSubtag = [&locale](const auto& subtag) {
-    auto span = subtag.span();
-    MOZ_ASSERT(!span.empty());
-    return locale.append(span.data(), span.size());
-  };
-
-  // Append the language subtag.
-  if (!appendSubtag(tag.language())) {
-    return false;
-  }
-
-  // Append the script subtag if present.
-  if (tag.script().present()) {
-    if (!locale.append('_') || !appendSubtag(tag.script())) {
-      return false;
-    }
-  }
-
-  // Append the region subtag if present.
-  if (tag.region().present()) {
-    if (!locale.append('_') || !appendSubtag(tag.region())) {
-      return false;
-    }
-  }
-
-  // Zero-terminated for use with ICU.
-  return locale.append('\0');
-}
-
-// Assign the language, script, and region subtags from an ICU locale ID.
-//
-// ICU provides |uloc_getLanguage|, |uloc_getScript|, and |uloc_getCountry| to
-// retrieve these subtags, but unfortunately these functions are rather slow, so
-// we use our own implementation.
-static bool AssignFromLocaleId(JSContext* cx, LocaleId& localeId,
-                               LanguageTag& tag) {
-  MOZ_ASSERT(localeId.back() == '\0',
-             "Locale ID should be zero-terminated for ICU");
-
-  // Replace the ICU locale ID separator.
-  std::replace(localeId.begin(), localeId.end(), '_', '-');
-
-  // ICU replaces "und" with the empty string, which means "und" becomes "" and
-  // "und-Latn" becomes "-Latn". Handle this case separately.
-  if (localeId[0] == '\0' || localeId[0] == '-') {
-    static constexpr char und[] = "und";
-    constexpr size_t length = std::char_traits<char>::length(und);
-
-    // Insert "und" in front of the locale ID.
-    if (!localeId.growBy(length)) {
-      return false;
-    }
-    memmove(localeId.begin() + length, localeId.begin(), localeId.length());
-    memmove(localeId.begin(), und, length);
-  }
-
-  mozilla::Span<const char> localeSpan(localeId.begin(), localeId.length() - 1);
-
-  // Retrieve the language, script, and region subtags from the locale ID, but
-  // ignore any other subtags.
-  LanguageTag localeTag(cx);
-  if (!LanguageTagParser::parseBaseName(cx, localeSpan, localeTag)) {
-    return false;
-  }
-
-  tag.setLanguage(localeTag.language());
-  tag.setScript(localeTag.script());
-  tag.setRegion(localeTag.region());
-
-  return true;
-}
-
-template <decltype(uloc_addLikelySubtags) likelySubtagsFn>
-static bool CallLikelySubtags(JSContext* cx, const LocaleId& localeId,
-                              LocaleId& result) {
-  // Locale ID must be zero-terminated before passing it to ICU.
-  MOZ_ASSERT(localeId.back() == '\0');
-  MOZ_ASSERT(result.length() == 0);
-
-  // Ensure there's enough room for the result.
-  MOZ_ALWAYS_TRUE(result.resize(LocaleId::InlineLength));
-
-  int32_t length = intl::CallICU(
-      cx,
-      [&localeId](char* chars, int32_t size, UErrorCode* status) {
-        return likelySubtagsFn(localeId.begin(), chars, size, status);
-      },
-      result);
-  if (length < 0) {
-    return false;
-  }
-
-  MOZ_ASSERT(
-      size_t(length) <= LocaleId::InlineLength,
-      "Unexpected extra subtags were added by ICU. If this assertion ever "
-      "fails, simply remove it and move on like nothing ever happended.");
-
-  // Resize the vector to the actual string length.
-  result.shrinkTo(length);
-
-  // Zero-terminated for use with ICU.
-  return result.append('\0');
-}
-
-// The canonical way to compute the Unicode BCP 47 locale identifier with likely
-// subtags is as follows:
-//
-// 1. Call uloc_forLanguageTag() to transform the locale identifer into an ICU
-//    locale ID.
-// 2. Call uloc_addLikelySubtags() to add the likely subtags to the locale ID.
-// 3. Call uloc_toLanguageTag() to transform the resulting locale ID back into
-//    a Unicode BCP 47 locale identifier.
-//
-// Since uloc_forLanguageTag() and uloc_toLanguageTag() are both kind of slow
-// and we know, by construction, that the input Unicode BCP 47 locale identifier
-// only contains valid language, script, and region subtags, we can avoid both
-// calls if we implement them ourselves, see CreateLocaleForLikelySubtags() and
-// AssignFromLocaleId(). (Where "slow" means about 50% of the execution time of
-// |Intl.Locale.prototype.maximize|.)
-static bool LikelySubtags(JSContext* cx, LikelySubtags likelySubtags,
-                          LanguageTag& tag) {
-  // Return early if the input is already maximized/minimized.
-  if (HasLikelySubtags(likelySubtags, tag)) {
-    return true;
-  }
-
-  // Create the locale ID for the input argument.
-  LocaleId locale(cx);
-  if (!CreateLocaleForLikelySubtags(tag, locale)) {
-    return false;
-  }
-
-  // Either add or remove likely subtags to/from the locale ID.
-  LocaleId localeLikelySubtags(cx);
-  if (likelySubtags == LikelySubtags::Add) {
-    if (!CallLikelySubtags<uloc_addLikelySubtags>(cx, locale,
-                                                  localeLikelySubtags)) {
-      return false;
-    }
-  } else {
-    if (!CallLikelySubtags<uloc_minimizeSubtags>(cx, locale,
-                                                 localeLikelySubtags)) {
-      return false;
-    }
-  }
-
-  // Assign the language, script, and region subtags from the locale ID.
-  if (!AssignFromLocaleId(cx, localeLikelySubtags, tag)) {
-    return false;
-  }
-
-  // Update mappings in case ICU returned a non-canonical locale.
-  return tag.canonicalizeBaseName(cx);
-}
-
-bool LanguageTag::addLikelySubtags(JSContext* cx) {
-  return LikelySubtags(cx, LikelySubtags::Add, *this);
-}
-
-bool LanguageTag::removeLikelySubtags(JSContext* cx) {
-  return LikelySubtags(cx, LikelySubtags::Remove, *this);
-}
-
-LanguageTagParser::Token LanguageTagParser::nextToken() {
-  MOZ_ASSERT(index_ <= length_ + 1, "called after 'None' token was read");
-
-  TokenKind kind = TokenKind::None;
-  size_t tokenLength = 0;
-  for (size_t i = index_; i < length_; i++) {
-    // UTS 35, section 3.1.
-    // alpha = [A-Z a-z] ;
-    // digit = [0-9] ;
-    char16_t c = charAtUnchecked(i);
-    if (mozilla::IsAsciiAlpha(c)) {
-      kind |= TokenKind::Alpha;
-    } else if (mozilla::IsAsciiDigit(c)) {
-      kind |= TokenKind::Digit;
-    } else if (c == '-' && i > index_ && i + 1 < length_) {
-      break;
-    } else {
-      return {TokenKind::Error, 0, 0};
-    }
-    tokenLength += 1;
-  }
-
-  Token token{kind, index_, tokenLength};
-  index_ += tokenLength + 1;
-  return token;
-}
-
-UniqueChars LanguageTagParser::chars(JSContext* cx, size_t index,
-                                     size_t length) const {
-  // Add +1 to null-terminate the string.
-  auto chars = cx->make_pod_array<char>(length + 1);
-  if (chars) {
-    char* dest = chars.get();
-    if (locale_.is<const JS::Latin1Char*>()) {
-      std::copy_n(locale_.as<const JS::Latin1Char*>() + index, length, dest);
-    } else {
-      std::copy_n(locale_.as<const char16_t*>() + index, length, dest);
-    }
-    dest[length] = '\0';
-  }
-  return chars;
-}
-
-// Parse the `unicode_language_id` production.
-//
-// unicode_language_id = unicode_language_subtag
-//                       (sep unicode_script_subtag)?
-//                       (sep unicode_region_subtag)?
-//                       (sep unicode_variant_subtag)* ;
-//
-// sep                 = "-"
-//
-// Note: Unicode CLDR locale identifier backward compatibility extensions
-//       removed from `unicode_language_id`.
-//
-// |tok| is the current token from |ts|.
-//
-// All subtags will be added unaltered to |tag|, without canonicalizing their
-// case or, in the case of variant subtags, detecting and rejecting duplicate
-// variants. Users must subsequently |canonicalizeBaseName| to perform these
-// actions.
-//
-// Do not use this function directly: use |parseBaseName| or
-// |parseTlangFromTransformExtension| instead.
-JS::Result<bool> LanguageTagParser::internalParseBaseName(JSContext* cx,
-                                                          LanguageTagParser& ts,
-                                                          LanguageTag& tag,
-                                                          Token& tok) {
-  if (ts.isLanguage(tok)) {
-    ts.copyChars(tok, tag.language_);
-
-    tok = ts.nextToken();
-  } else {
-    // The language subtag is mandatory.
-    return false;
-  }
-
-  if (ts.isScript(tok)) {
-    ts.copyChars(tok, tag.script_);
-
-    tok = ts.nextToken();
-  }
-
-  if (ts.isRegion(tok)) {
-    ts.copyChars(tok, tag.region_);
-
-    tok = ts.nextToken();
-  }
-
-  auto& variants = tag.variants_;
-  MOZ_ASSERT(variants.length() == 0);
-  while (ts.isVariant(tok)) {
-    auto variant = ts.chars(cx, tok);
-    if (!variant) {
-      return cx->alreadyReportedOOM();
-    }
-    if (!variants.append(std::move(variant))) {
-      return cx->alreadyReportedOOM();
-    }
-
-    tok = ts.nextToken();
-  }
-
-  return true;
-}
-
-static mozilla::Variant<const Latin1Char*, const char16_t*> StringChars(
-    const char* locale) {
-  return mozilla::AsVariant(reinterpret_cast<const JS::Latin1Char*>(locale));
-}
-
-static mozilla::Variant<const Latin1Char*, const char16_t*> StringChars(
-    JSLinearString* linear, JS::AutoCheckCannotGC& nogc) {
-  if (linear->hasLatin1Chars()) {
-    return mozilla::AsVariant(linear->latin1Chars(nogc));
-  }
-  return mozilla::AsVariant(linear->twoByteChars(nogc));
-}
-
-JS::Result<bool> LanguageTagParser::tryParse(JSContext* cx,
-                                             JSLinearString* locale,
-                                             LanguageTag& tag) {
-  JS::AutoCheckCannotGC nogc;
-  LocaleChars localeChars = StringChars(locale, nogc);
-  return tryParse(cx, localeChars, locale->length(), tag);
-}
-
-JS::Result<bool> LanguageTagParser::tryParse(JSContext* cx,
-                                             mozilla::Span<const char> locale,
-                                             LanguageTag& tag) {
-  LocaleChars localeChars = StringChars(locale.data());
-  return tryParse(cx, localeChars, locale.size(), tag);
-}
-
-JS::Result<bool> LanguageTagParser::tryParse(JSContext* cx,
-                                             LocaleChars& localeChars,
-                                             size_t localeLength,
-                                             LanguageTag& tag) {
-  // unicode_locale_id = unicode_language_id
-  //                     extensions*
-  //                     pu_extensions? ;
-
-  LanguageTagParser ts(localeChars, localeLength);
-  Token tok = ts.nextToken();
-
-  bool ok;
-  MOZ_TRY_VAR(ok, parseBaseName(cx, ts, tag, tok));
-  if (!ok) {
-    return false;
-  }
-
-  // extensions = unicode_locale_extensions
-  //            | transformed_extensions
-  //            | other_extensions ;
-
-  // Bit set of seen singletons.
-  uint64_t seenSingletons = 0;
-
-  auto& extensions = tag.extensions_;
-  while (ts.isExtensionStart(tok)) {
-    char singleton = ts.singletonKey(tok);
-
-    // Reject the input if a duplicate singleton was found.
-    uint64_t hash = 1ULL << (mozilla::AsciiAlphanumericToNumber(singleton) + 1);
-    if (seenSingletons & hash) {
-      return false;
-    }
-    seenSingletons |= hash;
-
-    Token start = tok;
-    tok = ts.nextToken();
-
-    // We'll check for missing non-singleton subtags after this block by
-    // comparing |startValue| with the then-current position.
-    size_t startValue = tok.index();
-
-    if (singleton == 'u') {
-      while (ts.isUnicodeExtensionPart(tok)) {
-        tok = ts.nextToken();
-      }
-    } else if (singleton == 't') {
-      // transformed_extensions = sep [tT]
-      //                          ((sep tlang (sep tfield)*)
-      //                           | (sep tfield)+) ;
-
-      // tlang = unicode_language_subtag
-      //         (sep unicode_script_subtag)?
-      //         (sep unicode_region_subtag)?
-      //         (sep unicode_variant_subtag)* ;
-      if (ts.isLanguage(tok)) {
-        tok = ts.nextToken();
-
-        if (ts.isScript(tok)) {
-          tok = ts.nextToken();
-        }
-
-        if (ts.isRegion(tok)) {
-          tok = ts.nextToken();
-        }
-
-        while (ts.isVariant(tok)) {
-          tok = ts.nextToken();
-        }
-      }
-
-      // tfield = tkey tvalue;
-      while (ts.isTransformExtensionKey(tok)) {
-        tok = ts.nextToken();
-
-        size_t startTValue = tok.index();
-        while (ts.isTransformExtensionPart(tok)) {
-          tok = ts.nextToken();
-        }
-
-        // `tfield` requires at least one `tvalue`.
-        if (tok.index() <= startTValue) {
-          return false;
-        }
-      }
-    } else {
-      while (ts.isOtherExtensionPart(tok)) {
-        tok = ts.nextToken();
-      }
-    }
-
-    // Singletons must be followed by a non-singleton subtag, "en-a-b" is not
-    // allowed.
-    if (tok.index() <= startValue) {
-      return false;
-    }
-
-    UniqueChars extension = ts.extension(cx, start, tok);
-    if (!extension) {
-      return cx->alreadyReportedOOM();
-    }
-    if (!extensions.append(std::move(extension))) {
-      return cx->alreadyReportedOOM();
-    }
-  }
-
-  // Trailing `pu_extension` component of the `unicode_locale_id` production.
-  if (ts.isPrivateUseStart(tok)) {
-    Token start = tok;
-    tok = ts.nextToken();
-
-    size_t startValue = tok.index();
-    while (ts.isPrivateUsePart(tok)) {
-      tok = ts.nextToken();
-    }
-
-    // There must be at least one subtag after the "-x-".
-    if (tok.index() <= startValue) {
-      return false;
-    }
-
-    UniqueChars privateUse = ts.extension(cx, start, tok);
-    if (!privateUse) {
-      return cx->alreadyReportedOOM();
-    }
-    tag.privateuse_ = std::move(privateUse);
-  }
-
-  // Return true if the complete input was successfully parsed.
-  return tok.isNone();
-}
-
-bool LanguageTagParser::parse(JSContext* cx, JSLinearString* locale,
-                              LanguageTag& tag) {
-  bool ok;
-  JS_TRY_VAR_OR_RETURN_FALSE(cx, ok, tryParse(cx, locale, tag));
-  if (ok) {
-    return true;
-  }
-  if (UniqueChars localeChars = QuoteString(cx, locale, '"')) {
+  if (UniqueChars localeChars = QuoteString(cx, str, '"')) {
     JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
                               JSMSG_INVALID_LANGUAGE_TAG, localeChars.get());
   }
   return false;
 }
 
-bool LanguageTagParser::parse(JSContext* cx, mozilla::Span<const char> locale,
-                              LanguageTag& tag) {
-  bool ok;
-  JS_TRY_VAR_OR_RETURN_FALSE(cx, ok, tryParse(cx, locale, tag));
-  if (ok) {
-    return true;
-  }
-  if (UniqueChars localeChars =
-          DuplicateString(cx, locale.data(), locale.size())) {
-    JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr,
-                             JSMSG_INVALID_LANGUAGE_TAG, localeChars.get());
-  }
-  return false;
-}
-
-bool LanguageTagParser::parseBaseName(JSContext* cx,
-                                      mozilla::Span<const char> locale,
-                                      LanguageTag& tag) {
-  LocaleChars localeChars = StringChars(locale.data());
-  LanguageTagParser ts(localeChars, locale.size());
-  Token tok = ts.nextToken();
-
-  // Parse only the base-name part and ignore any trailing characters.
-  bool ok;
-  JS_TRY_VAR_OR_RETURN_FALSE(cx, ok, parseBaseName(cx, ts, tag, tok));
-  if (ok) {
-    return true;
-  }
-  if (UniqueChars localeChars =
-          DuplicateString(cx, locale.data(), locale.size())) {
-    JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
-                              JSMSG_INVALID_LANGUAGE_TAG, localeChars.get());
-  }
-  return false;
-}
-
-JS::Result<bool> LanguageTagParser::tryParseBaseName(JSContext* cx,
-                                                     JSLinearString* locale,
-                                                     LanguageTag& tag) {
-  JS::AutoCheckCannotGC nogc;
-  LocaleChars localeChars = StringChars(locale, nogc);
-  LanguageTagParser ts(localeChars, locale->length());
-  Token tok = ts.nextToken();
-
-  // Return true if the complete input was successfully parsed.
-  bool ok;
-  MOZ_TRY_VAR(ok, parseBaseName(cx, ts, tag, tok));
-  return ok && tok.isNone();
-}
-
-// Parse |extension|, which must be a valid `transformed_extensions` subtag, and
-// fill |tag| and |fields| from the `tlang` and `tfield` components.
-JS::Result<bool> LanguageTagParser::parseTransformExtension(
-    JSContext* cx, mozilla::Span<const char> extension, LanguageTag& tag,
-    TFieldVector& fields) {
-  LocaleChars extensionChars = StringChars(extension.data());
-  LanguageTagParser ts(extensionChars, extension.size());
-  Token tok = ts.nextToken();
-
-  if (!ts.isExtensionStart(tok) || ts.singletonKey(tok) != 't') {
-    return false;
-  }
-
-  tok = ts.nextToken();
-
-  if (tok.isNone()) {
-    return false;
-  }
-
-  if (ts.isLanguage(tok)) {
-    // We're parsing a possible `tlang` in a known-valid transform extension, so
-    // use the special-purpose function that takes advantage of this to compute
-    // lowercased |tag| contents in an optimal manner.
-    MOZ_TRY(parseTlangInTransformExtension(cx, ts, tag, tok));
-
-    // After `tlang` we must have a `tfield` and its `tkey`, or we're at the end
-    // of the transform extension.
-    MOZ_ASSERT(ts.isTransformExtensionKey(tok) || tok.isNone());
-  } else {
-    // If there's no `tlang` subtag, at least one `tfield` must be present.
-    MOZ_ASSERT(ts.isTransformExtensionKey(tok));
-  }
-
-  // Trailing `tfield` subtags. (Any other trailing subtags are an error,
-  // because we're guaranteed to only see a valid tranform extension here.)
-  while (ts.isTransformExtensionKey(tok)) {
-    size_t begin = tok.index();
-    tok = ts.nextToken();
-
-    size_t startTValue = tok.index();
-    while (ts.isTransformExtensionPart(tok)) {
-      tok = ts.nextToken();
-    }
-
-    // `tfield` requires at least one `tvalue`.
-    if (tok.index() <= startTValue) {
-      return false;
-    }
-
-    size_t length = tok.index() - 1 - begin;
-    if (!fields.emplaceBack(begin, length)) {
-      return cx->alreadyReportedOOM();
-    }
-  }
-
-  // Return true if the complete input was successfully parsed.
-  return tok.isNone();
-}
-
-// Parse |extension|, which must be a valid `unicode_locale_extensions` subtag,
-// and fill |attributes| and |keywords| from the `attribute` and `keyword`
-// components.
-JS::Result<bool> LanguageTagParser::parseUnicodeExtension(
-    JSContext* cx, mozilla::Span<const char> extension,
-    AttributesVector& attributes, KeywordsVector& keywords) {
-  LocaleChars extensionChars = StringChars(extension.data());
-  LanguageTagParser ts(extensionChars, extension.size());
-  Token tok = ts.nextToken();
-
-  // unicode_locale_extensions = sep [uU] ((sep keyword)+ |
-  //                                       (sep attribute)+ (sep keyword)*) ;
-
-  if (!ts.isExtensionStart(tok) || ts.singletonKey(tok) != 'u') {
-    return false;
-  }
-
-  tok = ts.nextToken();
-
-  if (tok.isNone()) {
-    return false;
-  }
-
-  while (ts.isUnicodeExtensionAttribute(tok)) {
-    if (!attributes.emplaceBack(tok.index(), tok.length())) {
-      return cx->alreadyReportedOOM();
-    }
-
-    tok = ts.nextToken();
-  }
-
-  // keyword = key (sep type)? ;
-  while (ts.isUnicodeExtensionKey(tok)) {
-    size_t begin = tok.index();
-    tok = ts.nextToken();
-
-    while (ts.isUnicodeExtensionType(tok)) {
-      tok = ts.nextToken();
-    }
-
-    if (tok.isError()) {
-      return false;
-    }
-
-    size_t length = tok.index() - 1 - begin;
-    if (!keywords.emplaceBack(begin, length)) {
-      return cx->alreadyReportedOOM();
-    }
-  }
-
-  // Return true if the complete input was successfully parsed.
-  return tok.isNone();
-}
-
-bool LanguageTagParser::canParseUnicodeExtension(
-    mozilla::Span<const char> extension) {
-  LocaleChars extensionChars = StringChars(extension.data());
-  LanguageTagParser ts(extensionChars, extension.size());
-  Token tok = ts.nextToken();
-
-  // unicode_locale_extensions = sep [uU] ((sep keyword)+ |
-  //                                       (sep attribute)+ (sep keyword)*) ;
-
-  if (!ts.isExtensionStart(tok) || ts.singletonKey(tok) != 'u') {
-    return false;
-  }
-
-  tok = ts.nextToken();
-
-  if (tok.isNone()) {
-    return false;
-  }
-
-  while (ts.isUnicodeExtensionAttribute(tok)) {
-    tok = ts.nextToken();
-  }
-
-  // keyword = key (sep type)? ;
-  while (ts.isUnicodeExtensionKey(tok)) {
-    tok = ts.nextToken();
-
-    while (ts.isUnicodeExtensionType(tok)) {
-      tok = ts.nextToken();
-    }
-
-    if (tok.isError()) {
-      return false;
-    }
-  }
-
-  // Return true if the complete input was successfully parsed.
-  return tok.isNone();
-}
-
-bool LanguageTagParser::canParseUnicodeExtensionType(
-    JSLinearString* unicodeType) {
-  MOZ_ASSERT(unicodeType->length() > 0, "caller must exclude empty strings");
-
-  JS::AutoCheckCannotGC nogc;
-  LocaleChars unicodeTypeChars = StringChars(unicodeType, nogc);
-
-  LanguageTagParser ts(unicodeTypeChars, unicodeType->length());
-  Token tok = ts.nextToken();
-
-  while (ts.isUnicodeExtensionType(tok)) {
-    tok = ts.nextToken();
-  }
-
-  // Return true if the complete input was successfully parsed.
-  return tok.isNone();
-}
-
 bool ParseStandaloneLanguageTag(HandleLinearString str,
-                                LanguageSubtag& result) {
-  JS::AutoCheckCannotGC nogc;
+                                mozilla::intl::LanguageSubtag& result) {
+  // Tell the analysis the |IsStructurallyValidLanguageTag| function can't GC.
+  JS::AutoSuppressGCAnalysis nogc;
+
   if (str->hasLatin1Chars()) {
-    if (!IsStructurallyValidLanguageTag<Latin1Char>(str->latin1Range(nogc))) {
+    if (!mozilla::intl::IsStructurallyValidLanguageTag<Latin1Char>(
+            str->latin1Range(nogc))) {
       return false;
     }
     result.set<Latin1Char>(str->latin1Range(nogc));
   } else {
-    if (!IsStructurallyValidLanguageTag<char16_t>(str->twoByteRange(nogc))) {
+    if (!mozilla::intl::IsStructurallyValidLanguageTag<char16_t>(
+            str->twoByteRange(nogc))) {
       return false;
     }
     result.set<char16_t>(str->twoByteRange(nogc));
@@ -1594,15 +59,20 @@
   return true;
 }
 
-bool ParseStandaloneScriptTag(HandleLinearString str, ScriptSubtag& result) {
-  JS::AutoCheckCannotGC nogc;
+bool ParseStandaloneScriptTag(HandleLinearString str,
+                              mozilla::intl::ScriptSubtag& result) {
+  // Tell the analysis the |IsStructurallyValidScriptTag| function can't GC.
+  JS::AutoSuppressGCAnalysis nogc;
+
   if (str->hasLatin1Chars()) {
-    if (!IsStructurallyValidScriptTag<Latin1Char>(str->latin1Range(nogc))) {
+    if (!mozilla::intl::IsStructurallyValidScriptTag<Latin1Char>(
+            str->latin1Range(nogc))) {
       return false;
     }
     result.set<Latin1Char>(str->latin1Range(nogc));
   } else {
-    if (!IsStructurallyValidScriptTag<char16_t>(str->twoByteRange(nogc))) {
+    if (!mozilla::intl::IsStructurallyValidScriptTag<char16_t>(
+            str->twoByteRange(nogc))) {
       return false;
     }
     result.set<char16_t>(str->twoByteRange(nogc));
@@ -1610,15 +80,20 @@
   return true;
 }
 
-bool ParseStandaloneRegionTag(HandleLinearString str, RegionSubtag& result) {
-  JS::AutoCheckCannotGC nogc;
+bool ParseStandaloneRegionTag(HandleLinearString str,
+                              mozilla::intl::RegionSubtag& result) {
+  // Tell the analysis the |IsStructurallyValidRegionTag| function can't GC.
+  JS::AutoSuppressGCAnalysis nogc;
+
   if (str->hasLatin1Chars()) {
-    if (!IsStructurallyValidRegionTag<Latin1Char>(str->latin1Range(nogc))) {
+    if (!mozilla::intl::IsStructurallyValidRegionTag<Latin1Char>(
+            str->latin1Range(nogc))) {
       return false;
     }
     result.set<Latin1Char>(str->latin1Range(nogc));
   } else {
-    if (!IsStructurallyValidRegionTag<char16_t>(str->twoByteRange(nogc))) {
+    if (!mozilla::intl::IsStructurallyValidRegionTag<char16_t>(
+            str->twoByteRange(nogc))) {
       return false;
     }
     result.set<char16_t>(str->twoByteRange(nogc));
@@ -1679,7 +154,7 @@
     }
   }
 
-  LanguageSubtag languageTag;
+  mozilla::intl::LanguageSubtag languageTag;
   if (str->hasLatin1Chars()) {
     JS::AutoCheckCannotGC nogc;
     languageTag.set<Latin1Char>(str->latin1Range(nogc));
@@ -1695,13 +170,13 @@
 
   // Reject the input if the canonical tag contains more than just a single
   // language subtag.
-  if (LanguageTag::complexLanguageMapping(languageTag)) {
+  if (mozilla::intl::Locale::complexLanguageMapping(languageTag)) {
     return nullptr;
   }
 
   // Take care to replace deprecated subtags with their preferred values.
   JSString* result;
-  if (LanguageTag::languageMapping(languageTag) || !isLowerCase) {
+  if (mozilla::intl::Locale::languageMapping(languageTag) || !isLowerCase) {
     result = NewStringCopy<CanGC>(cx, languageTag.span());
   } else {
     result = str;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/LanguageTagGenerated.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/LanguageTagGenerated.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/LanguageTagGenerated.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/LanguageTagGenerated.cpp	1970-01-01 00:00:00.000000000 +0000
@@ -1,1129 +0,0 @@
-// Generated by make_intl_data.py. DO NOT EDIT.
-// Version: CLDR-39
-// URL: https://unicode.org/Public/cldr/39/core.zip
-
-#include "mozilla/Assertions.h"
-#include "mozilla/Span.h"
-#include "mozilla/TextUtils.h"
-
-#include <algorithm>
-#include <cstdint>
-#include <cstring>
-#include <iterator>
-#include <string>
-#include <type_traits>
-
-#include "builtin/intl/LanguageTag.h"
-#include "util/Text.h"
-#include "vm/JSContext.h"
-
-using namespace js::intl::LanguageTagLimits;
-
-template <size_t Length, size_t TagLength, size_t SubtagLength>
-static inline bool HasReplacement(
-    const char (&subtags)[Length][TagLength],
-    const js::intl::LanguageTagSubtag<SubtagLength>& subtag) {
-  MOZ_ASSERT(subtag.length() == TagLength - 1,
-             "subtag must have the same length as the list of subtags");
-
-  const char* ptr = subtag.span().data();
-  return std::binary_search(std::begin(subtags), std::end(subtags), ptr,
-                            [](const char* a, const char* b) {
-    return memcmp(a, b, TagLength - 1) < 0;
-  });
-}
-
-template <size_t Length, size_t TagLength, size_t SubtagLength>
-static inline const char* SearchReplacement(
-    const char (&subtags)[Length][TagLength],
-    const char* (&aliases)[Length],
-    const js::intl::LanguageTagSubtag<SubtagLength>& subtag) {
-  MOZ_ASSERT(subtag.length() == TagLength - 1,
-             "subtag must have the same length as the list of subtags");
-
-  const char* ptr = subtag.span().data();
-  auto p = std::lower_bound(std::begin(subtags), std::end(subtags), ptr,
-                            [](const char* a, const char* b) {
-    return memcmp(a, b, TagLength - 1) < 0;
-  });
-  if (p != std::end(subtags) && memcmp(*p, ptr, TagLength - 1) == 0) {
-    return aliases[std::distance(std::begin(subtags), p)];
-  }
-  return nullptr;
-}
-
-#ifdef DEBUG
-static bool IsAsciiLowercaseAlphanumeric(char c) {
-  return mozilla::IsAsciiLowercaseAlpha(c) || mozilla::IsAsciiDigit(c);
-}
-
-static bool IsAsciiLowercaseAlphanumericOrDash(char c) {
-  return IsAsciiLowercaseAlphanumeric(c) || c == '-';
-}
-
-static bool IsCanonicallyCasedLanguageTag(mozilla::Span<const char> span) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  return std::all_of(span.begin(), span.end(), mozilla::IsAsciiLowercaseAlpha<char>);
-}
-
-static bool IsCanonicallyCasedScriptTag(mozilla::Span<const char> span) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  return mozilla::IsAsciiUppercaseAlpha(span[0]) &&
-         std::all_of(span.begin() + 1, span.end(), mozilla::IsAsciiLowercaseAlpha<char>);
-}
-
-static bool IsCanonicallyCasedRegionTag(mozilla::Span<const char> span) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  return std::all_of(span.begin(), span.end(), mozilla::IsAsciiUppercaseAlpha<char>) ||
-         std::all_of(span.begin(), span.end(), mozilla::IsAsciiDigit<char>);
-}
-
-static bool IsCanonicallyCasedVariantTag(mozilla::Span<const char> span) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  return std::all_of(span.begin(), span.end(), IsAsciiLowercaseAlphanumeric);
-}
-
-static bool IsCanonicallyCasedUnicodeKey(mozilla::Span<const char> key) {
-  return std::all_of(key.begin(), key.end(), IsAsciiLowercaseAlphanumeric);
-}
-
-static bool IsCanonicallyCasedUnicodeType(mozilla::Span<const char> type) {
-  return std::all_of(type.begin(), type.end(), IsAsciiLowercaseAlphanumericOrDash);
-}
-
-static bool IsCanonicallyCasedTransformKey(mozilla::Span<const char> key) {
-  return std::all_of(key.begin(), key.end(), IsAsciiLowercaseAlphanumeric);
-}
-
-static bool IsCanonicallyCasedTransformType(mozilla::Span<const char> type) {
-  return std::all_of(type.begin(), type.end(), IsAsciiLowercaseAlphanumericOrDash);
-}
-#endif
-
-// Mappings from language subtags to preferred values.
-// Derived from CLDR Supplemental Data, version 39.
-// https://unicode.org/Public/cldr/39/core.zip
-bool js::intl::LanguageTag::languageMapping(LanguageSubtag& language) {
-  MOZ_ASSERT(IsStructurallyValidLanguageTag(language.span()));
-  MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language.span()));
-
-  if (language.length() == 2) {
-    static const char languages[8][3] = {
-      "bh", "in", "iw", "ji", "jw", "mo", "tl", "tw",
-    };
-    static const char* aliases[8] = {
-      "bho", "id", "he", "yi", "jv", "ro", "fil", "ak",
-    };
-
-    if (const char* replacement = SearchReplacement(languages, aliases, language)) {
-      language.set(mozilla::MakeStringSpan(replacement));
-      return true;
-    }
-    return false;
-  }
-
-  if (language.length() == 3) {
-    static const char languages[401][4] = {
-      "aam", "aar", "abk", "adp", "afr", "agp", "ais", "aju", "aka", "alb",
-      "als", "amh", "ara", "arb", "arg", "arm", "asd", "asm", "aue", "ava",
-      "ave", "aym", "ayr", "ayx", "aze", "azj", "bak", "bam", "baq", "baz",
-      "bcc", "bcl", "bel", "ben", "bgm", "bhk", "bih", "bis", "bjd", "bjq",
-      "bkb", "bod", "bos", "bre", "btb", "bul", "bur", "bxk", "bxr", "cat",
-      "ccq", "ces", "cha", "che", "chi", "chu", "chv", "cjr", "cka", "cld",
-      "cmk", "cmn", "cor", "cos", "coy", "cqu", "cre", "cwd", "cym", "cze",
-      "daf", "dan", "dap", "deu", "dgo", "dhd", "dik", "diq", "dit", "div",
-      "djl", "dkl", "drh", "drr", "dud", "duj", "dut", "dwl", "dzo", "ekk",
-      "ell", "elp", "emk", "eng", "epo", "esk", "est", "eus", "ewe", "fao",
-      "fas", "fat", "fij", "fin", "fra", "fre", "fry", "fuc", "ful", "gav",
-      "gaz", "gbc", "gbo", "geo", "ger", "gfx", "ggn", "ggo", "ggr", "gio",
-      "gla", "gle", "glg", "gli", "glv", "gno", "gre", "grn", "gti", "gug",
-      "guj", "guv", "gya", "hat", "hau", "hdn", "hea", "heb", "her", "him",
-      "hin", "hmo", "hrr", "hrv", "hun", "hye", "ibi", "ibo", "ice", "ido",
-      "iii", "ike", "iku", "ile", "ill", "ilw", "ina", "ind", "ipk", "isl",
-      "ita", "izi", "jar", "jav", "jeg", "jpn", "kal", "kan", "kas", "kat",
-      "kau", "kaz", "kdv", "kgc", "kgd", "kgh", "khk", "khm", "kik", "kin",
-      "kir", "kmr", "knc", "kng", "knn", "koj", "kom", "kon", "kor", "kpp",
-      "kpv", "krm", "ktr", "kua", "kur", "kvs", "kwq", "kxe", "kxl", "kzh",
-      "kzj", "kzt", "lao", "lat", "lav", "lbk", "leg", "lii", "lim", "lin",
-      "lit", "llo", "lmm", "ltz", "lub", "lug", "lvs", "mac", "mah", "mal",
-      "mao", "mar", "may", "meg", "mgx", "mhr", "mkd", "mlg", "mlt", "mnk",
-      "mnt", "mof", "mol", "mon", "mri", "msa", "mst", "mup", "mwd", "mwj",
-      "mya", "myd", "myt", "nad", "nau", "nav", "nbf", "nbl", "nbx", "ncp",
-      "nde", "ndo", "nep", "nld", "nln", "nlr", "nno", "nns", "nnx", "nob",
-      "noo", "nor", "npi", "nts", "nxu", "nya", "oci", "ojg", "oji", "ori",
-      "orm", "ory", "oss", "oun", "pan", "pbu", "pcr", "per", "pes", "pli",
-      "plt", "pmc", "pmu", "pnb", "pol", "por", "ppa", "ppr", "pry", "pus",
-      "puz", "que", "quz", "rmr", "rmy", "roh", "ron", "rum", "run", "rus",
-      "sag", "san", "sap", "sca", "scc", "scr", "sgl", "sin", "skk", "slk",
-      "slo", "slv", "sme", "smo", "sna", "snd", "som", "sot", "spa", "spy",
-      "sqi", "src", "srd", "srp", "ssw", "sul", "sum", "sun", "swa", "swe",
-      "swh", "tah", "tam", "tat", "tdu", "tel", "tgg", "tgk", "tgl", "tha",
-      "thc", "thw", "thx", "tib", "tid", "tie", "tir", "tkk", "tlw", "tmp",
-      "tne", "ton", "tsf", "tsn", "tso", "ttq", "tuk", "tur", "twi", "uig",
-      "ukr", "umu", "unp", "uok", "urd", "uzb", "uzn", "ven", "vie", "vol",
-      "wel", "wgw", "wit", "wiw", "wln", "wol", "xba", "xho", "xia", "xkh",
-      "xpe", "xrq", "xsj", "xsl", "ybd", "ydd", "yen", "yid", "yiy", "yma",
-      "ymt", "yor", "yos", "yuu", "zai", "zha", "zho", "zir", "zsm", "zul",
-      "zyb",
-    };
-    static const char* aliases[401] = {
-      "aas",  "aa",  "ab",  "dz",  "af", "apf", "ami", "jrb",  "ak",  "sq",
-       "sq",  "am",  "ar",  "ar",  "an",  "hy", "snz",  "as", "ktz",  "av",
-       "ae",  "ay",  "ay", "nun",  "az",  "az",  "ba",  "bm",  "eu", "nvo",
-      "bal", "bik",  "be",  "bn", "bcg", "fbl", "bho",  "bi", "drl", "bzc",
-      "ebk",  "bo",  "bs",  "br", "beb",  "bg",  "my", "luy", "bua",  "ca",
-      "rki",  "cs",  "ch",  "ce",  "zh",  "cu",  "cv", "mom", "cmr", "syr",
-      "xch",  "zh",  "kw",  "co", "pij", "quh",  "cr",  "cr",  "cy",  "cs",
-      "dnj",  "da", "njz",  "de", "doi", "mwr", "din", "zza", "dif",  "dv",
-      "dze", "aqd",  "mn", "kzk", "uth", "dwu",  "nl", "dbt",  "dz",  "et",
-       "el", "amq", "man",  "en",  "eo",  "ik",  "et",  "eu",  "ee",  "fo",
-       "fa",  "ak",  "fj",  "fi",  "fr",  "fr",  "fy",  "ff",  "ff", "dev",
-       "om", "wny", "grb",  "ka",  "de", "vaj", "gvr", "esg", "gtu", "aou",
-       "gd",  "ga",  "gl", "kzk",  "gv", "gon",  "el",  "gn", "nyc",  "gn",
-       "gu", "duz", "gba",  "ht",  "ha", "hai", "hmn",  "he",  "hz", "srx",
-       "hi",  "ho", "jal",  "hr",  "hu",  "hy", "opa",  "ig",  "is",  "io",
-       "ii",  "iu",  "iu",  "ie", "ilm", "gal",  "ia",  "id",  "ik",  "is",
-       "it", "eza", "jgk",  "jv", "oyb",  "ja",  "kl",  "kn",  "ks",  "ka",
-       "kr",  "kk", "zkd", "tdf", "ncq", "kml",  "mn",  "km",  "ki",  "rw",
-       "ky",  "ku",  "kr",  "kg", "kok", "kwv",  "kv",  "kg",  "ko", "jkm",
-       "kv", "bmf", "dtp",  "kj",  "ku", "gdj", "yam", "tvd", "kru", "dgl",
-      "dtp", "dtp",  "lo",  "la",  "lv", "bnc", "enl", "raq",  "li",  "ln",
-       "lt", "ngt", "rmx",  "lb",  "lu",  "lg",  "lv",  "mk",  "mh",  "ml",
-       "mi",  "mr",  "ms", "cir", "jbk", "chm",  "mk",  "mg",  "mt", "man",
-      "wnn", "xnt",  "ro",  "mn",  "mi",  "ms", "mry", "raj", "dmw", "vaj",
-       "my", "aog", "mry", "xny",  "na",  "nv", "nru",  "nr", "ekc", "kdz",
-       "nd",  "ng",  "ne",  "nl", "azd", "nrk",  "nn", "nbr", "ngv",  "nb",
-      "dtd",  "no",  "ne", "pij", "bpp",  "ny",  "oc",  "oj",  "oj",  "or",
-       "om",  "or",  "os", "vaj",  "pa",  "ps", "adx",  "fa",  "fa",  "pi",
-       "mg", "huw", "phr", "lah",  "pl",  "pt", "bfy", "lcq", "prt",  "ps",
-      "pub",  "qu",  "qu", "emx", "rom",  "rm",  "ro",  "ro",  "rn",  "ru",
-       "sg",  "sa", "aqt", "hle",  "sr",  "hr", "isk",  "si", "oyb",  "sk",
-       "sk",  "sl",  "se",  "sm",  "sn",  "sd",  "so",  "st",  "es", "kln",
-       "sq",  "sc",  "sc",  "sr",  "ss", "sgd", "ulw",  "su",  "sw",  "sv",
-       "sw",  "ty",  "ta",  "tt", "dtp",  "te", "bjp",  "tg", "fil",  "th",
-      "tpo", "ola", "oyb",  "bo", "itd", "ras",  "ti", "twm", "weo", "tyj",
-      "kak",  "to", "taj",  "tn",  "ts", "tmh",  "tk",  "tr",  "ak",  "ug",
-       "uk", "del", "wro", "ema",  "ur",  "uz",  "uz",  "ve",  "vi",  "vo",
-       "cy", "wgb", "nol", "nwo",  "wa",  "wo", "cax",  "xh", "acn", "waw",
-      "kpe", "dmw", "suj", "den", "rki",  "yi", "ynq",  "yi", "yrm", "lrr",
-      "mtm",  "yo", "zom", "yug", "zap",  "za",  "zh", "scv",  "ms",  "zu",
-       "za",
-    };
-
-    if (const char* replacement = SearchReplacement(languages, aliases, language)) {
-      language.set(mozilla::MakeStringSpan(replacement));
-      return true;
-    }
-    return false;
-  }
-
-  return false;
-}
-
-// Language subtags with complex mappings.
-// Derived from CLDR Supplemental Data, version 39.
-// https://unicode.org/Public/cldr/39/core.zip
-bool js::intl::LanguageTag::complexLanguageMapping(const LanguageSubtag& language) {
-  MOZ_ASSERT(IsStructurallyValidLanguageTag(language.span()));
-  MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language.span()));
-
-  if (language.length() == 2) {
-    return language.equalTo("sh");
-  }
-
-  if (language.length() == 3) {
-    static const char languages[6][4] = {
-      "cnr", "drw", "hbs", "prs", "swc", "tnf",
-    };
-
-    return HasReplacement(languages, language);
-  }
-
-  return false;
-}
-
-// Mappings from script subtags to preferred values.
-// Derived from CLDR Supplemental Data, version 39.
-// https://unicode.org/Public/cldr/39/core.zip
-bool js::intl::LanguageTag::scriptMapping(ScriptSubtag& script) {
-  MOZ_ASSERT(IsStructurallyValidScriptTag(script.span()));
-  MOZ_ASSERT(IsCanonicallyCasedScriptTag(script.span()));
-
-  {
-    if (script.equalTo("Qaai")) {
-      script.set(mozilla::MakeStringSpan("Zinh"));
-      return true;
-    }
-    return false;
-  }
-}
-
-// Mappings from region subtags to preferred values.
-// Derived from CLDR Supplemental Data, version 39.
-// https://unicode.org/Public/cldr/39/core.zip
-bool js::intl::LanguageTag::regionMapping(RegionSubtag& region) {
-  MOZ_ASSERT(IsStructurallyValidRegionTag(region.span()));
-  MOZ_ASSERT(IsCanonicallyCasedRegionTag(region.span()));
-
-  if (region.length() == 2) {
-    static const char regions[23][3] = {
-      "BU", "CS", "CT", "DD", "DY", "FQ", "FX", "HV", "JT", "MI",
-      "NH", "NQ", "PU", "PZ", "QU", "RH", "TP", "UK", "VD", "WK",
-      "YD", "YU", "ZR",
-    };
-    static const char* aliases[23] = {
-      "MM", "RS", "KI", "DE", "BJ", "AQ", "FR", "BF", "UM", "UM",
-      "VU", "AQ", "UM", "PA", "EU", "ZW", "TL", "GB", "VN", "UM",
-      "YE", "RS", "CD",
-    };
-
-    if (const char* replacement = SearchReplacement(regions, aliases, region)) {
-      region.set(mozilla::MakeStringSpan(replacement));
-      return true;
-    }
-    return false;
-  }
-
-  {
-    static const char regions[300][4] = {
-      "004", "008", "010", "012", "016", "020", "024", "028", "031", "032",
-      "036", "040", "044", "048", "050", "051", "052", "056", "060", "062",
-      "064", "068", "070", "072", "074", "076", "084", "086", "090", "092",
-      "096", "100", "104", "108", "112", "116", "120", "124", "132", "136",
-      "140", "144", "148", "152", "156", "158", "162", "166", "170", "174",
-      "175", "178", "180", "184", "188", "191", "192", "196", "203", "204",
-      "208", "212", "214", "218", "222", "226", "230", "231", "232", "233",
-      "234", "238", "239", "242", "246", "248", "249", "250", "254", "258",
-      "260", "262", "266", "268", "270", "275", "276", "278", "280", "288",
-      "292", "296", "300", "304", "308", "312", "316", "320", "324", "328",
-      "332", "334", "336", "340", "344", "348", "352", "356", "360", "364",
-      "368", "372", "376", "380", "384", "388", "392", "398", "400", "404",
-      "408", "410", "414", "417", "418", "422", "426", "428", "430", "434",
-      "438", "440", "442", "446", "450", "454", "458", "462", "466", "470",
-      "474", "478", "480", "484", "492", "496", "498", "499", "500", "504",
-      "508", "512", "516", "520", "524", "528", "531", "533", "534", "535",
-      "540", "548", "554", "558", "562", "566", "570", "574", "578", "580",
-      "581", "583", "584", "585", "586", "591", "598", "600", "604", "608",
-      "612", "616", "620", "624", "626", "630", "634", "638", "642", "643",
-      "646", "652", "654", "659", "660", "662", "663", "666", "670", "674",
-      "678", "682", "686", "688", "690", "694", "702", "703", "704", "705",
-      "706", "710", "716", "720", "724", "728", "729", "732", "736", "740",
-      "744", "748", "752", "756", "760", "762", "764", "768", "772", "776",
-      "780", "784", "788", "792", "795", "796", "798", "800", "804", "807",
-      "818", "826", "830", "831", "832", "833", "834", "840", "850", "854",
-      "858", "860", "862", "876", "882", "886", "887", "891", "894", "958",
-      "959", "960", "962", "963", "964", "965", "966", "967", "968", "969",
-      "970", "971", "972", "973", "974", "975", "976", "977", "978", "979",
-      "980", "981", "982", "983", "984", "985", "986", "987", "988", "989",
-      "990", "991", "992", "993", "994", "995", "996", "997", "998", "999",
-    };
-    static const char* aliases[300] = {
-       "AF",  "AL",  "AQ",  "DZ",  "AS",  "AD",  "AO",  "AG",  "AZ",  "AR",
-       "AU",  "AT",  "BS",  "BH",  "BD",  "AM",  "BB",  "BE",  "BM", "034",
-       "BT",  "BO",  "BA",  "BW",  "BV",  "BR",  "BZ",  "IO",  "SB",  "VG",
-       "BN",  "BG",  "MM",  "BI",  "BY",  "KH",  "CM",  "CA",  "CV",  "KY",
-       "CF",  "LK",  "TD",  "CL",  "CN",  "TW",  "CX",  "CC",  "CO",  "KM",
-       "YT",  "CG",  "CD",  "CK",  "CR",  "HR",  "CU",  "CY",  "CZ",  "BJ",
-       "DK",  "DM",  "DO",  "EC",  "SV",  "GQ",  "ET",  "ET",  "ER",  "EE",
-       "FO",  "FK",  "GS",  "FJ",  "FI",  "AX",  "FR",  "FR",  "GF",  "PF",
-       "TF",  "DJ",  "GA",  "GE",  "GM",  "PS",  "DE",  "DE",  "DE",  "GH",
-       "GI",  "KI",  "GR",  "GL",  "GD",  "GP",  "GU",  "GT",  "GN",  "GY",
-       "HT",  "HM",  "VA",  "HN",  "HK",  "HU",  "IS",  "IN",  "ID",  "IR",
-       "IQ",  "IE",  "IL",  "IT",  "CI",  "JM",  "JP",  "KZ",  "JO",  "KE",
-       "KP",  "KR",  "KW",  "KG",  "LA",  "LB",  "LS",  "LV",  "LR",  "LY",
-       "LI",  "LT",  "LU",  "MO",  "MG",  "MW",  "MY",  "MV",  "ML",  "MT",
-       "MQ",  "MR",  "MU",  "MX",  "MC",  "MN",  "MD",  "ME",  "MS",  "MA",
-       "MZ",  "OM",  "NA",  "NR",  "NP",  "NL",  "CW",  "AW",  "SX",  "BQ",
-       "NC",  "VU",  "NZ",  "NI",  "NE",  "NG",  "NU",  "NF",  "NO",  "MP",
-       "UM",  "FM",  "MH",  "PW",  "PK",  "PA",  "PG",  "PY",  "PE",  "PH",
-       "PN",  "PL",  "PT",  "GW",  "TL",  "PR",  "QA",  "RE",  "RO",  "RU",
-       "RW",  "BL",  "SH",  "KN",  "AI",  "LC",  "MF",  "PM",  "VC",  "SM",
-       "ST",  "SA",  "SN",  "RS",  "SC",  "SL",  "SG",  "SK",  "VN",  "SI",
-       "SO",  "ZA",  "ZW",  "YE",  "ES",  "SS",  "SD",  "EH",  "SD",  "SR",
-       "SJ",  "SZ",  "SE",  "CH",  "SY",  "TJ",  "TH",  "TG",  "TK",  "TO",
-       "TT",  "AE",  "TN",  "TR",  "TM",  "TC",  "TV",  "UG",  "UA",  "MK",
-       "EG",  "GB",  "JE",  "GG",  "JE",  "IM",  "TZ",  "US",  "VI",  "BF",
-       "UY",  "UZ",  "VE",  "WF",  "WS",  "YE",  "YE",  "RS",  "ZM",  "AA",
-       "QM",  "QN",  "QP",  "QQ",  "QR",  "QS",  "QT",  "EU",  "QV",  "QW",
-       "QX",  "QY",  "QZ",  "XA",  "XB",  "XC",  "XD",  "XE",  "XF",  "XG",
-       "XH",  "XI",  "XJ",  "XK",  "XL",  "XM",  "XN",  "XO",  "XP",  "XQ",
-       "XR",  "XS",  "XT",  "XU",  "XV",  "XW",  "XX",  "XY",  "XZ",  "ZZ",
-    };
-
-    if (const char* replacement = SearchReplacement(regions, aliases, region)) {
-      region.set(mozilla::MakeStringSpan(replacement));
-      return true;
-    }
-    return false;
-  }
-}
-
-// Region subtags with complex mappings.
-// Derived from CLDR Supplemental Data, version 39.
-// https://unicode.org/Public/cldr/39/core.zip
-bool js::intl::LanguageTag::complexRegionMapping(const RegionSubtag& region) {
-  MOZ_ASSERT(IsStructurallyValidRegionTag(region.span()));
-  MOZ_ASSERT(IsCanonicallyCasedRegionTag(region.span()));
-
-  if (region.length() == 2) {
-    return region.equalTo("AN") ||
-           region.equalTo("NT") ||
-           region.equalTo("PC") ||
-           region.equalTo("SU");
-  }
-
-  {
-    static const char regions[8][4] = {
-      "172", "200", "530", "532", "536", "582", "810", "890",
-    };
-
-    return HasReplacement(regions, region);
-  }
-}
-
-// Language subtags with complex mappings.
-// Derived from CLDR Supplemental Data, version 39.
-// https://unicode.org/Public/cldr/39/core.zip
-void js::intl::LanguageTag::performComplexLanguageMappings() {
-  MOZ_ASSERT(IsStructurallyValidLanguageTag(language().span()));
-  MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language().span()));
-
-  if (language().equalTo("cnr")) {
-    setLanguage("sr");
-    if (region().missing()) {
-      setRegion("ME");
-    }
-  }
-  else if (language().equalTo("drw") ||
-           language().equalTo("prs") ||
-           language().equalTo("tnf")) {
-    setLanguage("fa");
-    if (region().missing()) {
-      setRegion("AF");
-    }
-  }
-  else if (language().equalTo("hbs") ||
-           language().equalTo("sh")) {
-    setLanguage("sr");
-    if (script().missing()) {
-      setScript("Latn");
-    }
-  }
-  else if (language().equalTo("swc")) {
-    setLanguage("sw");
-    if (region().missing()) {
-      setRegion("CD");
-    }
-  }
-}
-
-// Region subtags with complex mappings.
-// Derived from CLDR Supplemental Data, version 39.
-// https://unicode.org/Public/cldr/39/core.zip
-void js::intl::LanguageTag::performComplexRegionMappings() {
-  MOZ_ASSERT(IsStructurallyValidLanguageTag(language().span()));
-  MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language().span()));
-  MOZ_ASSERT(IsStructurallyValidRegionTag(region().span()));
-  MOZ_ASSERT(IsCanonicallyCasedRegionTag(region().span()));
-
-  if (region().equalTo("172")) {
-    if (language().equalTo("hy") ||
-        (language().equalTo("und") && script().equalTo("Armn"))) {
-      setRegion("AM");
-    }
-    else if (language().equalTo("az") ||
-             language().equalTo("tkr") ||
-             language().equalTo("tly") ||
-             language().equalTo("ttt")) {
-      setRegion("AZ");
-    }
-    else if (language().equalTo("be")) {
-      setRegion("BY");
-    }
-    else if (language().equalTo("ab") ||
-             language().equalTo("ka") ||
-             (language().equalTo("ku") && script().equalTo("Yezi")) ||
-             language().equalTo("os") ||
-             (language().equalTo("und") && script().equalTo("Geor")) ||
-             (language().equalTo("und") && script().equalTo("Yezi")) ||
-             language().equalTo("xmf")) {
-      setRegion("GE");
-    }
-    else if (language().equalTo("ky")) {
-      setRegion("KG");
-    }
-    else if (language().equalTo("kk") ||
-             (language().equalTo("ug") && script().equalTo("Cyrl"))) {
-      setRegion("KZ");
-    }
-    else if (language().equalTo("gag")) {
-      setRegion("MD");
-    }
-    else if (language().equalTo("tg")) {
-      setRegion("TJ");
-    }
-    else if (language().equalTo("tk")) {
-      setRegion("TM");
-    }
-    else if (language().equalTo("crh") ||
-             language().equalTo("got") ||
-             language().equalTo("ji") ||
-             language().equalTo("rue") ||
-             language().equalTo("uk") ||
-             (language().equalTo("und") && script().equalTo("Goth"))) {
-      setRegion("UA");
-    }
-    else if (language().equalTo("kaa") ||
-             language().equalTo("sog") ||
-             (language().equalTo("und") && script().equalTo("Chrs")) ||
-             (language().equalTo("und") && script().equalTo("Sogd")) ||
-             (language().equalTo("und") && script().equalTo("Sogo")) ||
-             language().equalTo("uz") ||
-             language().equalTo("xco")) {
-      setRegion("UZ");
-    }
-    else {
-      setRegion("RU");
-    }
-  }
-  else if (region().equalTo("200")) {
-    if (language().equalTo("sk")) {
-      setRegion("SK");
-    }
-    else {
-      setRegion("CZ");
-    }
-  }
-  else if (region().equalTo("530") ||
-           region().equalTo("532") ||
-           region().equalTo("AN")) {
-    if (language().equalTo("vic")) {
-      setRegion("SX");
-    }
-    else {
-      setRegion("CW");
-    }
-  }
-  else if (region().equalTo("536") ||
-           region().equalTo("NT")) {
-    if (language().equalTo("akk") ||
-        language().equalTo("ckb") ||
-        (language().equalTo("ku") && script().equalTo("Arab")) ||
-        language().equalTo("syr") ||
-        (language().equalTo("und") && script().equalTo("Syrc")) ||
-        (language().equalTo("und") && script().equalTo("Xsux"))) {
-      setRegion("IQ");
-    }
-    else {
-      setRegion("SA");
-    }
-  }
-  else if (region().equalTo("582") ||
-           region().equalTo("PC")) {
-    if (language().equalTo("mh")) {
-      setRegion("MH");
-    }
-    else if (language().equalTo("pau")) {
-      setRegion("PW");
-    }
-    else {
-      setRegion("FM");
-    }
-  }
-  else if (region().equalTo("810") ||
-           region().equalTo("SU")) {
-    if (language().equalTo("hy") ||
-        (language().equalTo("und") && script().equalTo("Armn"))) {
-      setRegion("AM");
-    }
-    else if (language().equalTo("az") ||
-             language().equalTo("tkr") ||
-             language().equalTo("tly") ||
-             language().equalTo("ttt")) {
-      setRegion("AZ");
-    }
-    else if (language().equalTo("be")) {
-      setRegion("BY");
-    }
-    else if (language().equalTo("et") ||
-             language().equalTo("vro")) {
-      setRegion("EE");
-    }
-    else if (language().equalTo("ab") ||
-             language().equalTo("ka") ||
-             (language().equalTo("ku") && script().equalTo("Yezi")) ||
-             language().equalTo("os") ||
-             (language().equalTo("und") && script().equalTo("Geor")) ||
-             (language().equalTo("und") && script().equalTo("Yezi")) ||
-             language().equalTo("xmf")) {
-      setRegion("GE");
-    }
-    else if (language().equalTo("ky")) {
-      setRegion("KG");
-    }
-    else if (language().equalTo("kk") ||
-             (language().equalTo("ug") && script().equalTo("Cyrl"))) {
-      setRegion("KZ");
-    }
-    else if (language().equalTo("lt") ||
-             language().equalTo("sgs")) {
-      setRegion("LT");
-    }
-    else if (language().equalTo("ltg") ||
-             language().equalTo("lv")) {
-      setRegion("LV");
-    }
-    else if (language().equalTo("gag")) {
-      setRegion("MD");
-    }
-    else if (language().equalTo("tg")) {
-      setRegion("TJ");
-    }
-    else if (language().equalTo("tk")) {
-      setRegion("TM");
-    }
-    else if (language().equalTo("crh") ||
-             language().equalTo("got") ||
-             language().equalTo("ji") ||
-             language().equalTo("rue") ||
-             language().equalTo("uk") ||
-             (language().equalTo("und") && script().equalTo("Goth"))) {
-      setRegion("UA");
-    }
-    else if (language().equalTo("kaa") ||
-             language().equalTo("sog") ||
-             (language().equalTo("und") && script().equalTo("Chrs")) ||
-             (language().equalTo("und") && script().equalTo("Sogd")) ||
-             (language().equalTo("und") && script().equalTo("Sogo")) ||
-             language().equalTo("uz") ||
-             language().equalTo("xco")) {
-      setRegion("UZ");
-    }
-    else {
-      setRegion("RU");
-    }
-  }
-  else if (region().equalTo("890")) {
-    if (language().equalTo("bs")) {
-      setRegion("BA");
-    }
-    else if (language().equalTo("hr")) {
-      setRegion("HR");
-    }
-    else if (language().equalTo("mk")) {
-      setRegion("MK");
-    }
-    else if (language().equalTo("sl")) {
-      setRegion("SI");
-    }
-    else {
-      setRegion("RS");
-    }
-  }
-}
-
-static const char* ToCharPointer(const char* str) {
-  return str;
-}
-
-static const char* ToCharPointer(const js::UniqueChars& str) {
-  return str.get();
-}
-
-template <typename T, typename U = T>
-static bool IsLessThan(const T& a, const U& b) {
-  return strcmp(ToCharPointer(a), ToCharPointer(b)) < 0;
-}
-
-// Mappings from variant subtags to preferred values.
-// Derived from CLDR Supplemental Data, version 39.
-// https://unicode.org/Public/cldr/39/core.zip
-bool js::intl::LanguageTag::performVariantMappings(JSContext* cx) {
-  // The variant subtags need to be sorted for binary search.
-  MOZ_ASSERT(std::is_sorted(variants_.begin(), variants_.end(),
-                            IsLessThan<decltype(variants_)::ElementType>));
-
-  auto removeVariantAt = [&](size_t index) {
-    variants_.erase(variants_.begin() + index);
-  };
-
-  auto insertVariantSortedIfNotPresent = [&](const char* variant) {
-    auto* p = std::lower_bound(variants_.begin(), variants_.end(), variant,
-                               IsLessThan<decltype(variants_)::ElementType,
-                                          decltype(variant)>);
-
-    // Don't insert the replacement when already present.
-    if (p != variants_.end() && strcmp(p->get(), variant) == 0) {
-      return true;
-    }
-
-    // Insert the preferred variant in sort order.
-    auto preferred = DuplicateString(cx, variant);
-    if (!preferred) {
-      return false;
-    }
-    return !!variants_.insert(p, std::move(preferred));
-  };
-
-  for (size_t i = 0; i < variants_.length(); ) {
-    const char* variant = variants_[i].get();
-    MOZ_ASSERT(IsCanonicallyCasedVariantTag(mozilla::MakeStringSpan(variant)));
-
-    if (strcmp(variant, "arevela") == 0 ||
-        strcmp(variant, "arevmda") == 0 ||
-        strcmp(variant, "bokmal") == 0 ||
-        strcmp(variant, "hakka") == 0 ||
-        strcmp(variant, "lojban") == 0 ||
-        strcmp(variant, "nynorsk") == 0 ||
-        strcmp(variant, "saaho") == 0 ||
-        strcmp(variant, "xiang") == 0) {
-      removeVariantAt(i);
-    }
-    else if (strcmp(variant, "aaland") == 0) {
-      removeVariantAt(i);
-      setRegion("AX");
-    }
-    else if (strcmp(variant, "heploc") == 0) {
-      removeVariantAt(i);
-      if (!insertVariantSortedIfNotPresent("alalc97")) {
-        return false;
-      }
-    }
-    else if (strcmp(variant, "polytoni") == 0) {
-      removeVariantAt(i);
-      if (!insertVariantSortedIfNotPresent("polyton")) {
-        return false;
-      }
-    }
-    else {
-      i++;
-    }
-  }
-  return true;
-}
-
-// Canonicalize legacy locale identifiers.
-// Derived from CLDR Supplemental Data, version 39.
-// https://unicode.org/Public/cldr/39/core.zip
-bool js::intl::LanguageTag::updateLegacyMappings(JSContext* cx) {
-  // We're mapping legacy tags to non-legacy form here.
-  // Other tags remain unchanged.
-  //
-  // Legacy tags are either sign language tags ("sgn") or have one or multiple
-  // variant subtags. Therefore we can quickly exclude most tags by checking
-  // these two subtags.
-
-  MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language().span()));
-
-  if (!language().equalTo("sgn") && variants().length() == 0) {
-    return true;
-  }
-
-  for ([[maybe_unused]] const auto& variant : variants()) {
-    MOZ_ASSERT(IsStructurallyValidVariantTag(mozilla::MakeStringSpan(variant.get())));
-    MOZ_ASSERT(IsCanonicallyCasedVariantTag(mozilla::MakeStringSpan(variant.get())));
-  }
-
-  // The variant subtags need to be sorted for binary search.
-  MOZ_ASSERT(std::is_sorted(variants_.begin(), variants_.end(),
-                            IsLessThan<decltype(variants_)::ElementType>));
-
-  auto findVariant = [this](const char* variant) {
-    auto* p = std::lower_bound(variants_.begin(), variants_.end(), variant,
-                               IsLessThan<decltype(variants_)::ElementType,
-                                          decltype(variant)>);
-
-    if (p != variants_.end() && strcmp(p->get(), variant) == 0) {
-      return p;
-    }
-    return static_cast<decltype(p)>(nullptr);
-  };
-
-  auto insertVariantSortedIfNotPresent = [&](const char* variant) {
-    auto* p = std::lower_bound(variants_.begin(), variants_.end(), variant,
-                               IsLessThan<decltype(variants_)::ElementType,
-                                          decltype(variant)>);
-
-    // Don't insert the replacement when already present.
-    if (p != variants_.end() && strcmp(p->get(), variant) == 0) {
-      return true;
-    }
-
-    // Insert the preferred variant in sort order.
-    auto preferred = DuplicateString(cx, variant);
-    if (!preferred) {
-      return false;
-    }
-    return !!variants_.insert(p, std::move(preferred));
-  };
-
-  auto removeVariant = [&](auto* p) {
-    size_t index = std::distance(variants_.begin(), p);
-    variants_.erase(variants_.begin() + index);
-  };
-
-  auto removeVariants = [&](auto* p, auto* q) {
-    size_t pIndex = std::distance(variants_.begin(), p);
-    size_t qIndex = std::distance(variants_.begin(), q);
-    MOZ_ASSERT(pIndex < qIndex, "variant subtags are sorted");
-
-    variants_.erase(variants_.begin() + qIndex);
-    variants_.erase(variants_.begin() + pIndex);
-  };
-
-  if (variants().length() >= 2) {
-    if (auto* hepburn = findVariant("hepburn")) {
-      if (auto* heploc = findVariant("heploc")) {
-        removeVariants(hepburn, heploc);
-
-        if (!insertVariantSortedIfNotPresent("alalc97")) {
-          return false;
-        }
-      }
-    }
-  }
-
-  if (language().equalTo("sgn")) {
-    if (region().present() && signLanguageMapping(language_, region())) {
-      region_.set(mozilla::MakeStringSpan(""));
-    }
-  }
-  else if (language().equalTo("aa") ||
-           language().equalTo("aar")) {
-    if (auto* saaho = findVariant("saaho")) {
-      removeVariant(saaho);
-      setLanguage("ssy");
-    }
-  }
-  else if (language().equalTo("arm") ||
-           language().equalTo("hy") ||
-           language().equalTo("hye")) {
-    if (auto* arevmda = findVariant("arevmda")) {
-      removeVariant(arevmda);
-      setLanguage("hyw");
-    }
-  }
-  else if (language().equalTo("art")) {
-    if (auto* lojban = findVariant("lojban")) {
-      removeVariant(lojban);
-      setLanguage("jbo");
-    }
-  }
-  else if (language().equalTo("cel")) {
-    if (auto* gaulish = findVariant("gaulish")) {
-      removeVariant(gaulish);
-      setLanguage("xtg");
-    }
-  }
-  else if (language().equalTo("chi") ||
-           language().equalTo("cmn") ||
-           language().equalTo("zh") ||
-           language().equalTo("zho")) {
-    if (auto* guoyu = findVariant("guoyu")) {
-      if (auto* hakka = findVariant("hakka")) {
-        removeVariants(guoyu, hakka);
-        setLanguage("hak");
-        return true;
-      }
-    }
-    if (auto* guoyu = findVariant("guoyu")) {
-      if (auto* xiang = findVariant("xiang")) {
-        removeVariants(guoyu, xiang);
-        setLanguage("hsn");
-        return true;
-      }
-    }
-    if (auto* guoyu = findVariant("guoyu")) {
-      removeVariant(guoyu);
-      setLanguage("zh");
-    }
-    else if (auto* hakka = findVariant("hakka")) {
-      removeVariant(hakka);
-      setLanguage("hak");
-    }
-    else if (auto* xiang = findVariant("xiang")) {
-      removeVariant(xiang);
-      setLanguage("hsn");
-    }
-  }
-  else if (language().equalTo("no") ||
-           language().equalTo("nor")) {
-    if (auto* bokmal = findVariant("bokmal")) {
-      removeVariant(bokmal);
-      setLanguage("nb");
-    }
-    else if (auto* nynorsk = findVariant("nynorsk")) {
-      removeVariant(nynorsk);
-      setLanguage("nn");
-    }
-  }
-
-  return true;
-}
-
-// Mappings from legacy sign languages.
-// Derived from CLDR Supplemental Data, version 39.
-// https://unicode.org/Public/cldr/39/core.zip
-bool js::intl::LanguageTag::signLanguageMapping(LanguageSubtag& language,
-                                                const RegionSubtag& region) {
-  MOZ_ASSERT(language.equalTo("sgn"));
-  MOZ_ASSERT(IsStructurallyValidRegionTag(region.span()));
-  MOZ_ASSERT(IsCanonicallyCasedRegionTag(region.span()));
-
-  if (region.length() == 2) {
-    static const char regions[22][3] = {
-      "BR", "CO", "DD", "DE", "DK", "ES", "FR", "FX", "GB", "GR",
-      "IE", "IT", "JP", "MX", "NI", "NL", "NO", "PT", "SE", "UK",
-      "US", "ZA",
-    };
-    static const char* aliases[22] = {
-      "bzs", "csn", "gsg", "gsg", "dsl", "ssp", "fsl", "fsl", "bfi", "gss",
-      "isg", "ise", "jsl", "mfs", "ncs", "dse", "nsi", "psr", "swl", "bfi",
-      "ase", "sfs",
-    };
-
-    if (const char* replacement = SearchReplacement(regions, aliases, region)) {
-      language.set(mozilla::MakeStringSpan(replacement));
-      return true;
-    }
-    return false;
-  }
-
-  {
-    static const char regions[22][4] = {
-      "076", "170", "208", "249", "250", "276", "278", "280", "300", "372",
-      "380", "392", "484", "528", "558", "578", "620", "710", "724", "752",
-      "826", "840",
-    };
-    static const char* aliases[22] = {
-      "bzs", "csn", "dsl", "fsl", "fsl", "gsg", "gsg", "gsg", "gss", "isg",
-      "ise", "jsl", "mfs", "dse", "ncs", "nsi", "psr", "sfs", "ssp", "swl",
-      "bfi", "ase",
-    };
-
-    if (const char* replacement = SearchReplacement(regions, aliases, region)) {
-      language.set(mozilla::MakeStringSpan(replacement));
-      return true;
-    }
-    return false;
-  }
-}
-
-template <size_t Length>
-static inline bool IsUnicodeKey(
-  mozilla::Span<const char> key, const char (&str)[Length]) {
-  static_assert(Length == UnicodeKeyLength + 1,
-                "Unicode extension key is two characters long");
-  return memcmp(key.data(), str, Length - 1) == 0;
-}
-
-template <size_t Length>
-static inline bool IsUnicodeType(
-  mozilla::Span<const char> type, const char (&str)[Length]) {
-  static_assert(Length > UnicodeKeyLength + 1,
-                "Unicode extension type contains more than two characters");
-  return type.size() == (Length - 1) &&
-         memcmp(type.data(), str, Length - 1) == 0;
-}
-
-static int32_t CompareUnicodeType(const char* a, mozilla::Span<const char> b) {
-  MOZ_ASSERT(!std::char_traits<char>::find(b.data(), b.size(), '\0'),
-             "unexpected null-character in string");
-
-  using UnsignedChar = unsigned char;
-  for (size_t i = 0; i < b.size(); i++) {
-    // |a| is zero-terminated and |b| doesn't contain a null-terminator. So if
-    // we've reached the end of |a|, the below if-statement will always be true.
-    // That ensures we don't read past the end of |a|.
-    if (int32_t r = UnsignedChar(a[i]) - UnsignedChar(b[i])) {
-      return r;
-    }
-  }
-
-  // Return zero if both strings are equal or a positive number if |b| is a
-  // prefix of |a|.
-  return int32_t(UnsignedChar(a[b.size()]));
-}
-
-template <size_t Length>
-static inline const char* SearchUnicodeReplacement(
-  const char* (&types)[Length], const char* (&aliases)[Length],
-  mozilla::Span<const char> type) {
-
-  auto p = std::lower_bound(std::begin(types), std::end(types), type,
-                            [](const auto& a, const auto& b) {
-    return CompareUnicodeType(a, b) < 0;
-  });
-  if (p != std::end(types) && CompareUnicodeType(*p, type) == 0) {
-    return aliases[std::distance(std::begin(types), p)];
-  }
-  return nullptr;
-}
-
-/**
- * Mapping from deprecated BCP 47 Unicode extension types to their preferred
- * values.
- *
- * Spec: https://www.unicode.org/reports/tr35/#Unicode_Locale_Extension_Data_Files
- * Spec: https://www.unicode.org/reports/tr35/#t_Extension
- */
-const char* js::intl::LanguageTag::replaceUnicodeExtensionType(
-    mozilla::Span<const char> key, mozilla::Span<const char> type) {
-  MOZ_ASSERT(key.size() == UnicodeKeyLength);
-  MOZ_ASSERT(IsCanonicallyCasedUnicodeKey(key));
-
-  MOZ_ASSERT(type.size() > UnicodeKeyLength);
-  MOZ_ASSERT(IsCanonicallyCasedUnicodeType(type));
-
-  if (IsUnicodeKey(key, "ca")) {
-    if (IsUnicodeType(type, "ethiopic-amete-alem")) {
-      return "ethioaa";
-    }
-    if (IsUnicodeType(type, "islamicc")) {
-      return "islamic-civil";
-    }
-  }
-  else if (IsUnicodeKey(key, "kb") ||
-           IsUnicodeKey(key, "kc") ||
-           IsUnicodeKey(key, "kh") ||
-           IsUnicodeKey(key, "kk") ||
-           IsUnicodeKey(key, "kn")) {
-    if (IsUnicodeType(type, "yes")) {
-      return "true";
-    }
-  }
-  else if (IsUnicodeKey(key, "ks")) {
-    if (IsUnicodeType(type, "primary")) {
-      return "level1";
-    }
-    if (IsUnicodeType(type, "tertiary")) {
-      return "level3";
-    }
-  }
-  else if (IsUnicodeKey(key, "ms")) {
-    if (IsUnicodeType(type, "imperial")) {
-      return "uksystem";
-    }
-  }
-  else if (IsUnicodeKey(key, "rg") ||
-           IsUnicodeKey(key, "sd")) {
-    static const char* types[144] = {
-        "cn11",   "cn12",   "cn13",   "cn14",   "cn15",   "cn21",   "cn22",
-        "cn23",   "cn31",   "cn32",   "cn33",   "cn34",   "cn35",   "cn36",
-        "cn37",   "cn41",   "cn42",   "cn43",   "cn44",   "cn45",   "cn46",
-        "cn50",   "cn51",   "cn52",   "cn53",   "cn54",   "cn61",   "cn62",
-        "cn63",   "cn64",   "cn65",   "cn71",   "cn91",   "cn92",  "cz10a",
-       "cz10b",  "cz10c",  "cz10d",  "cz10e",  "cz10f",  "cz611",  "cz612",
-       "cz613",  "cz614",  "cz615",  "cz621",  "cz622",  "cz623",  "cz624",
-       "cz626",  "cz627",   "czjc",   "czjm",   "czka",   "czkr",   "czli",
-        "czmo",   "czol",   "czpa",   "czpl",   "czpr",   "czst",   "czus",
-        "czvy",   "czzl",   "fi01",    "fra",    "frb",   "frbl",    "frc",
-        "frcp",    "frd",    "fre",    "frf",    "frg",   "frgf",   "frgp",
-         "frh",    "fri",    "frj",    "frk",    "frl",    "frm",   "frmf",
-        "frmq",    "frn",   "frnc",    "fro",    "frp",   "frpf",   "frpm",
-         "frq",    "frr",   "frre",    "frs",    "frt",   "frtf",    "fru",
-         "frv",   "frwf",   "fryt",   "laxn",    "lud",    "lug",    "lul",
-       "mrnkc",   "nlaw",   "nlcw",   "nlsx",   "no23",    "nzn",    "nzs",
-        "omba",   "omsh",   "plds",   "plkp",   "pllb",   "plld",   "pllu",
-        "plma",   "plmz",   "plop",   "plpd",   "plpk",   "plpm",   "plsk",
-        "plsl",   "plwn",   "plwp",   "plzp",   "shta",  "tteto",  "ttrcm",
-       "ttwto",  "twkhq",  "twtnq",  "twtpq",  "twtxq",   "usas",   "usgu",
-        "usmp",   "uspr",   "usum",   "usvi",
-    };
-    static const char* aliases[144] = {
-        "cnbj",   "cntj",   "cnhe",   "cnsx",   "cnmn",   "cnln",   "cnjl",
-        "cnhl",   "cnsh",   "cnjs",   "cnzj",   "cnah",   "cnfj",   "cnjx",
-        "cnsd",   "cnha",   "cnhb",   "cnhn",   "cngd",   "cngx",   "cnhi",
-        "cncq",   "cnsc",   "cngz",   "cnyn",   "cnxz",   "cnsn",   "cngs",
-        "cnqh",   "cnnx",   "cnxj", "twzzzz", "hkzzzz", "mozzzz",  "cz110",
-       "cz111",  "cz112",  "cz113",  "cz114",  "cz115",  "cz663",  "cz632",
-       "cz633",  "cz634",  "cz635",  "cz641",  "cz642",  "cz643",  "cz644",
-       "cz646",  "cz647",   "cz31",   "cz64",   "cz41",   "cz52",   "cz51",
-        "cz80",   "cz71",   "cz53",   "cz32",   "cz10",   "cz20",   "cz42",
-        "cz63",   "cz72", "axzzzz",  "frges",  "frnaq", "blzzzz",  "frara",
-      "cpzzzz",  "frbfc",  "frbre",  "frcvl",  "frges", "gfzzzz", "gpzzzz",
-       "frcor",  "frbfc",  "fridf",  "frocc",  "frnaq",  "frges", "mfzzzz",
-      "mqzzzz",  "frocc", "nczzzz",  "frhdf",  "frnor", "pfzzzz", "pmzzzz",
-       "frnor",  "frpdl", "rezzzz",  "frhdf",  "frnaq", "tfzzzz",  "frpac",
-       "frara", "wfzzzz", "ytzzzz",   "laxs",   "lucl",   "luec",   "luca",
-        "mr13", "awzzzz", "cwzzzz", "sxzzzz",   "no50",  "nzauk",  "nzcan",
-        "ombj",   "omsj",   "pl02",   "pl04",   "pl08",   "pl10",   "pl06",
-        "pl12",   "pl14",   "pl16",   "pl20",   "pl18",   "pl22",   "pl26",
-        "pl24",   "pl28",   "pl30",   "pl32", "tazzzz",  "tttob",  "ttmrc",
-       "tttob",  "twkhh",  "twtnn",  "twnwt",  "twtxg", "aszzzz", "guzzzz",
-      "mpzzzz", "przzzz", "umzzzz", "vizzzz",
-    };
-    return SearchUnicodeReplacement(types, aliases, type);
-  }
-  else if (IsUnicodeKey(key, "tz")) {
-    static const char* types[28] = {
-         "aqams",    "cnckg",    "cnhrb",    "cnkhg",     "cuba",    "egypt",
-          "eire",      "est",     "gmt0", "hongkong",      "hst",  "iceland",
-          "iran",   "israel",  "jamaica",    "japan",    "libya",      "mst",
-        "navajo",   "poland", "portugal",      "prc",      "roc",      "rok",
-        "turkey",      "uct", "usnavajo",     "zulu",
-    };
-    static const char* aliases[28] = {
-         "nzakl",    "cnsha",    "cnsha",    "cnurc",    "cuhav",    "egcai",
-         "iedub",   "utcw05",      "gmt",    "hkhkg",   "utcw10",    "isrey",
-         "irthr",  "jeruslm",    "jmkin",    "jptyo",    "lytip",   "utcw07",
-         "usden",    "plwaw",    "ptlis",    "cnsha",    "twtpe",    "krsel",
-         "trist",      "utc",    "usden",      "utc",
-    };
-    return SearchUnicodeReplacement(types, aliases, type);
-  }
-  return nullptr;
-}
-
-template <size_t Length>
-static inline bool IsTransformKey(
-  mozilla::Span<const char> key, const char (&str)[Length]) {
-  static_assert(Length == TransformKeyLength + 1,
-                "Transform extension key is two characters long");
-  return memcmp(key.data(), str, Length - 1) == 0;
-}
-
-template <size_t Length>
-static inline bool IsTransformType(
-  mozilla::Span<const char> type, const char (&str)[Length]) {
-  static_assert(Length > TransformKeyLength + 1,
-                "Transform extension type contains more than two characters");
-  return type.size() == (Length - 1) &&
-         memcmp(type.data(), str, Length - 1) == 0;
-}
-
-/**
- * Mapping from deprecated BCP 47 Transform extension types to their preferred
- * values.
- *
- * Spec: https://www.unicode.org/reports/tr35/#Unicode_Locale_Extension_Data_Files
- * Spec: https://www.unicode.org/reports/tr35/#t_Extension
- */
-const char* js::intl::LanguageTag::replaceTransformExtensionType(
-    mozilla::Span<const char> key, mozilla::Span<const char> type) {
-  MOZ_ASSERT(key.size() == TransformKeyLength);
-  MOZ_ASSERT(IsCanonicallyCasedTransformKey(key));
-
-  MOZ_ASSERT(type.size() > TransformKeyLength);
-  MOZ_ASSERT(IsCanonicallyCasedTransformType(type));
-
-  if (IsTransformKey(key, "d0")) {
-    if (IsTransformType(type, "name")) {
-      return "charname";
-    }
-  }
-  else if (IsTransformKey(key, "m0")) {
-    if (IsTransformType(type, "names")) {
-      return "prprname";
-    }
-  }
-  return nullptr;
-}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/LanguageTag.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/LanguageTag.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/LanguageTag.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/LanguageTag.h	2021-10-20 19:28:22.000000000 +0000
@@ -9,17 +9,8 @@
 #ifndef builtin_intl_LanguageTag_h
 #define builtin_intl_LanguageTag_h
 
-#include "mozilla/Assertions.h"
+#include "mozilla/intl/Locale.h"
 #include "mozilla/Span.h"
-#include "mozilla/TextUtils.h"
-#include "mozilla/TypedEnumBits.h"
-#include "mozilla/Variant.h"
-
-#include <algorithm>
-#include <stddef.h>
-#include <stdint.h>
-#include <string.h>
-#include <utility>
 
 #include "js/AllocPolicy.h"
 #include "js/GCAPI.h"
@@ -38,702 +29,32 @@
 namespace intl {
 
 /**
- * Return true if |language| is a valid language subtag.
+ * Parse a string Unicode BCP 47 locale identifier. If successful, store in
+ * |result| and return true. Otherwise return false.
  */
-template <typename CharT>
-bool IsStructurallyValidLanguageTag(mozilla::Span<const CharT> language);
-
-/**
- * Return true if |script| is a valid script subtag.
- */
-template <typename CharT>
-bool IsStructurallyValidScriptTag(mozilla::Span<const CharT> script);
-
-/**
- * Return true if |region| is a valid region subtag.
- */
-template <typename CharT>
-bool IsStructurallyValidRegionTag(mozilla::Span<const CharT> region);
-
-#ifdef DEBUG
-/**
- * Return true if |variant| is a valid variant subtag.
- */
-bool IsStructurallyValidVariantTag(mozilla::Span<const char> variant);
-
-/**
- * Return true if |extension| is a valid Unicode extension subtag.
- */
-bool IsStructurallyValidUnicodeExtensionTag(
-    mozilla::Span<const char> extension);
-
-/**
- * Return true if |privateUse| is a valid private-use subtag.
- */
-bool IsStructurallyValidPrivateUseTag(mozilla::Span<const char> privateUse);
-
-#endif
-
-template <typename CharT>
-char AsciiToLowerCase(CharT c) {
-  MOZ_ASSERT(mozilla::IsAscii(c));
-  return mozilla::IsAsciiUppercaseAlpha(c) ? (c + 0x20) : c;
-}
-
-template <typename CharT>
-char AsciiToUpperCase(CharT c) {
-  MOZ_ASSERT(mozilla::IsAscii(c));
-  return mozilla::IsAsciiLowercaseAlpha(c) ? (c - 0x20) : c;
-}
-
-template <typename CharT>
-void AsciiToLowerCase(CharT* chars, size_t length, char* dest) {
-  // Tell the analysis the |std::transform| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  char (&fn)(CharT) = AsciiToLowerCase;
-  std::transform(chars, chars + length, dest, fn);
-}
-
-template <typename CharT>
-void AsciiToUpperCase(CharT* chars, size_t length, char* dest) {
-  // Tell the analysis the |std::transform| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  char (&fn)(CharT) = AsciiToUpperCase;
-  std::transform(chars, chars + length, dest, fn);
-}
-
-template <typename CharT>
-void AsciiToTitleCase(CharT* chars, size_t length, char* dest) {
-  if (length > 0) {
-    AsciiToUpperCase(chars, 1, dest);
-    AsciiToLowerCase(chars + 1, length - 1, dest + 1);
-  }
-}
-
-// Constants for language subtag lengths.
-namespace LanguageTagLimits {
-
-// unicode_language_subtag = alpha{2,3} | alpha{5,8} ;
-static constexpr size_t LanguageLength = 8;
-
-// unicode_script_subtag = alpha{4} ;
-static constexpr size_t ScriptLength = 4;
-
-// unicode_region_subtag = (alpha{2} | digit{3}) ;
-static constexpr size_t RegionLength = 3;
-static constexpr size_t AlphaRegionLength = 2;
-static constexpr size_t DigitRegionLength = 3;
-
-// key = alphanum alpha ;
-static constexpr size_t UnicodeKeyLength = 2;
-
-// tkey = alpha digit ;
-static constexpr size_t TransformKeyLength = 2;
-
-}  // namespace LanguageTagLimits
-
-// Fixed size language subtag which is stored inline in LanguageTag.
-template <size_t Length>
-class LanguageTagSubtag final {
-  uint8_t length_ = 0;
-  char chars_[Length] = {};  // zero initialize
-
- public:
-  LanguageTagSubtag() = default;
-
-  LanguageTagSubtag(const LanguageTagSubtag&) = delete;
-  LanguageTagSubtag& operator=(const LanguageTagSubtag&) = delete;
-
-  size_t length() const { return length_; }
-  bool missing() const { return length_ == 0; }
-  bool present() const { return length_ > 0; }
-
-  mozilla::Span<const char> span() const { return {chars_, length_}; }
-
-  template <typename CharT>
-  void set(mozilla::Span<const CharT> str) {
-    MOZ_ASSERT(str.size() <= Length);
-    std::copy_n(str.data(), str.size(), chars_);
-    length_ = str.size();
-  }
-
-  // The toXYZCase() methods are using |Length| instead of |length()|, because
-  // current compilers (tested GCC and Clang) can't infer the maximum string
-  // length - even when using hints like |std::min| - and instead are emitting
-  // SIMD optimized code. Using a fixed sized length avoids emitting the SIMD
-  // code. (Emitting SIMD code doesn't make sense here, because the SIMD code
-  // only kicks in for long strings.) A fixed length will additionally ensure
-  // the compiler unrolls the loop in the case conversion code.
-
-  void toLowerCase() { AsciiToLowerCase(chars_, Length, chars_); }
-
-  void toUpperCase() { AsciiToUpperCase(chars_, Length, chars_); }
-
-  void toTitleCase() { AsciiToTitleCase(chars_, Length, chars_); }
-
-  template <size_t N>
-  bool equalTo(const char (&str)[N]) const {
-    static_assert(N - 1 <= Length,
-                  "subtag literals must not exceed the maximum subtag length");
-
-    return length_ == N - 1 && memcmp(chars_, str, N - 1) == 0;
-  }
-};
-
-using LanguageSubtag = LanguageTagSubtag<LanguageTagLimits::LanguageLength>;
-using ScriptSubtag = LanguageTagSubtag<LanguageTagLimits::ScriptLength>;
-using RegionSubtag = LanguageTagSubtag<LanguageTagLimits::RegionLength>;
-
-/**
- * Object representing a language tag.
- *
- * All subtags are already in canonicalized case.
- */
-class MOZ_STACK_CLASS LanguageTag final {
-  LanguageSubtag language_ = {};
-  ScriptSubtag script_ = {};
-  RegionSubtag region_ = {};
-
-  using VariantsVector = Vector<JS::UniqueChars, 2>;
-  using ExtensionsVector = Vector<JS::UniqueChars, 2>;
-
-  VariantsVector variants_;
-  ExtensionsVector extensions_;
-  JS::UniqueChars privateuse_ = nullptr;
-
-  friend class LanguageTagParser;
-
-  bool canonicalizeUnicodeExtension(JSContext* cx,
-                                    JS::UniqueChars& unicodeExtension);
-
-  bool canonicalizeTransformExtension(JSContext* cx,
-                                      JS::UniqueChars& transformExtension);
-
- public:
-  static bool languageMapping(LanguageSubtag& language);
-  static bool complexLanguageMapping(const LanguageSubtag& language);
-
- private:
-  static bool scriptMapping(ScriptSubtag& script);
-  static bool regionMapping(RegionSubtag& region);
-  static bool complexRegionMapping(const RegionSubtag& region);
-
-  void performComplexLanguageMappings();
-  void performComplexRegionMappings();
-  [[nodiscard]] bool performVariantMappings(JSContext* cx);
-
-  [[nodiscard]] bool updateLegacyMappings(JSContext* cx);
-
-  static bool signLanguageMapping(LanguageSubtag& language,
-                                  const RegionSubtag& region);
-
-  static const char* replaceTransformExtensionType(
-      mozilla::Span<const char> key, mozilla::Span<const char> type);
-
- public:
-  /**
-   * Given a Unicode key and type, return the null-terminated preferred
-   * replacement for that type if there is one, or null if there is none, e.g.
-   * in effect
-   * |replaceUnicodeExtensionType("ca", "islamicc") == "islamic-civil"|
-   * and
-   * |replaceUnicodeExtensionType("ca", "islamic-civil") == nullptr|.
-   */
-  static const char* replaceUnicodeExtensionType(
-      mozilla::Span<const char> key, mozilla::Span<const char> type);
-
- public:
-  explicit LanguageTag(JSContext* cx) : variants_(cx), extensions_(cx) {}
-
-  LanguageTag(const LanguageTag&) = delete;
-  LanguageTag& operator=(const LanguageTag&) = delete;
-
-  const LanguageSubtag& language() const { return language_; }
-  const ScriptSubtag& script() const { return script_; }
-  const RegionSubtag& region() const { return region_; }
-  const auto& variants() const { return variants_; }
-  const auto& extensions() const { return extensions_; }
-  const char* privateuse() const { return privateuse_.get(); }
-
-  /**
-   * Return the Unicode extension subtag or nullptr if not present.
-   */
-  const char* unicodeExtension() const;
-
- private:
-  ptrdiff_t unicodeExtensionIndex() const;
-
- public:
-  /**
-   * Set the language subtag. The input must be a valid language subtag.
-   */
-  template <size_t N>
-  void setLanguage(const char (&language)[N]) {
-    mozilla::Span<const char> span(language, N - 1);
-    MOZ_ASSERT(IsStructurallyValidLanguageTag(span));
-    language_.set(span);
-  }
-
-  /**
-   * Set the language subtag. The input must be a valid language subtag.
-   */
-  void setLanguage(const LanguageSubtag& language) {
-    MOZ_ASSERT(IsStructurallyValidLanguageTag(language.span()));
-    language_.set(language.span());
-  }
-
-  /**
-   * Set the script subtag. The input must be a valid script subtag.
-   */
-  template <size_t N>
-  void setScript(const char (&script)[N]) {
-    mozilla::Span<const char> span(script, N - 1);
-    MOZ_ASSERT(IsStructurallyValidScriptTag(span));
-    script_.set(span);
-  }
-
-  /**
-   * Set the script subtag. The input must be a valid script subtag or the empty
-   * string.
-   */
-  void setScript(const ScriptSubtag& script) {
-    MOZ_ASSERT(script.missing() || IsStructurallyValidScriptTag(script.span()));
-    script_.set(script.span());
-  }
-
-  /**
-   * Set the region subtag. The input must be a valid region subtag.
-   */
-  template <size_t N>
-  void setRegion(const char (&region)[N]) {
-    mozilla::Span<const char> span(region, N - 1);
-    MOZ_ASSERT(IsStructurallyValidRegionTag(span));
-    region_.set(span);
-  }
-
-  /**
-   * Set the region subtag. The input must be a valid region subtag or the empty
-   * empty string.
-   */
-  void setRegion(const RegionSubtag& region) {
-    MOZ_ASSERT(region.missing() || IsStructurallyValidRegionTag(region.span()));
-    region_.set(region.span());
-  }
-
-  /**
-   * Removes all variant subtags.
-   */
-  void clearVariants() { variants_.clearAndFree(); }
-
-  /**
-   * Set the Unicode extension subtag. The input must be a valid Unicode
-   * extension subtag.
-   */
-  bool setUnicodeExtension(JS::UniqueChars extension);
-
-  /**
-   * Remove any Unicode extension subtag if present.
-   */
-  void clearUnicodeExtension();
-
-  /**
-   * Set the private-use subtag. The input must be a valid private-use subtag
-   * or nullptr.
-   */
-  void setPrivateuse(JS::UniqueChars privateuse) {
-    MOZ_ASSERT(!privateuse ||
-               IsStructurallyValidPrivateUseTag(
-                   {privateuse.get(), strlen(privateuse.get())}));
-    privateuse_ = std::move(privateuse);
-  }
-
-  /** Canonicalize the base-name (language, script, region, variant) subtags. */
-  bool canonicalizeBaseName(JSContext* cx);
-
-  /**
-   * Canonicalize all extension subtags.
-   */
-  bool canonicalizeExtensions(JSContext* cx);
-
-  /**
-   * Canonicalizes the given structurally valid Unicode BCP 47 locale
-   * identifier, including regularized case of subtags. For example, the
-   * language tag Zh-haNS-bu-variant2-Variant1-u-ca-chinese-t-Zh-laTN-x-PRIVATE,
-   * where
-   *
-   *     Zh             ; 2*3ALPHA
-   *     -haNS          ; ["-" script]
-   *     -bu            ; ["-" region]
-   *     -variant2      ; *("-" variant)
-   *     -Variant1
-   *     -u-ca-chinese  ; *("-" extension)
-   *     -t-Zh-laTN
-   *     -x-PRIVATE     ; ["-" privateuse]
-   *
-   * becomes zh-Hans-MM-variant1-variant2-t-zh-latn-u-ca-chinese-x-private
-   *
-   * Spec: ECMAScript Internationalization API Specification, 6.2.3.
-   */
-  bool canonicalize(JSContext* cx) {
-    return canonicalizeBaseName(cx) && canonicalizeExtensions(cx);
-  }
-
-  /**
-   * Return the string representation of this language tag.
-   */
-  JSString* toString(JSContext* cx) const;
-
-  /**
-   * Return the string representation of this language tag as a null-terminated
-   * C-string.
-   */
-  JS::UniqueChars toStringZ(JSContext* cx) const;
-
-  /**
-   * Add likely-subtags to the language tag.
-   *
-   * Spec: <https://www.unicode.org/reports/tr35/#Likely_Subtags>
-   */
-  bool addLikelySubtags(JSContext* cx);
-
-  /**
-   * Remove likely-subtags from the language tag.
-   *
-   * Spec: <https://www.unicode.org/reports/tr35/#Likely_Subtags>
-   */
-  bool removeLikelySubtags(JSContext* cx);
-};
-
-/**
- * Parser for Unicode BCP 47 locale identifiers.
- *
- * <https://unicode.org/reports/tr35/#Unicode_Language_and_Locale_Identifiers>
- */
-class MOZ_STACK_CLASS LanguageTagParser final {
- public:
-  // Exposed as |public| for |MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS|.
-  enum class TokenKind : uint8_t {
-    None = 0b000,
-    Alpha = 0b001,
-    Digit = 0b010,
-    AlphaDigit = 0b011,
-    Error = 0b100
-  };
-
- private:
-  class Token final {
-    size_t index_;
-    size_t length_;
-    TokenKind kind_;
-
-   public:
-    Token(TokenKind kind, size_t index, size_t length)
-        : index_(index), length_(length), kind_(kind) {}
-
-    TokenKind kind() const { return kind_; }
-    size_t index() const { return index_; }
-    size_t length() const { return length_; }
-
-    bool isError() const { return kind_ == TokenKind::Error; }
-    bool isNone() const { return kind_ == TokenKind::None; }
-    bool isAlpha() const { return kind_ == TokenKind::Alpha; }
-    bool isDigit() const { return kind_ == TokenKind::Digit; }
-    bool isAlphaDigit() const { return kind_ == TokenKind::AlphaDigit; }
-  };
-
-  using LocaleChars = mozilla::Variant<const JS::Latin1Char*, const char16_t*>;
-
-  const LocaleChars& locale_;
-  size_t length_;
-  size_t index_ = 0;
-
-  LanguageTagParser(const LocaleChars& locale, size_t length)
-      : locale_(locale), length_(length) {}
-
-  char16_t charAtUnchecked(size_t index) const {
-    if (locale_.is<const JS::Latin1Char*>()) {
-      return locale_.as<const JS::Latin1Char*>()[index];
-    }
-    return locale_.as<const char16_t*>()[index];
-  }
-
-  char charAt(size_t index) const {
-    char16_t c = charAtUnchecked(index);
-    MOZ_ASSERT(mozilla::IsAscii(c));
-    return c;
-  }
-
-  // Copy the token characters into |subtag|.
-  template <size_t N>
-  void copyChars(const Token& tok, LanguageTagSubtag<N>& subtag) const {
-    size_t index = tok.index();
-    size_t length = tok.length();
-    if (locale_.is<const JS::Latin1Char*>()) {
-      using T = const JS::Latin1Char;
-      subtag.set(mozilla::Span(locale_.as<T*>() + index, length));
-    } else {
-      using T = const char16_t;
-      subtag.set(mozilla::Span(locale_.as<T*>() + index, length));
-    }
-  }
-
-  // Create a string copy of |length| characters starting at |index|.
-  JS::UniqueChars chars(JSContext* cx, size_t index, size_t length) const;
-
-  // Create a string copy of the token characters.
-  JS::UniqueChars chars(JSContext* cx, const Token& tok) const {
-    return chars(cx, tok.index(), tok.length());
-  }
-
-  JS::UniqueChars extension(JSContext* cx, const Token& start,
-                            const Token& end) const {
-    MOZ_ASSERT(start.index() < end.index());
-
-    size_t length = end.index() - 1 - start.index();
-    return chars(cx, start.index(), length);
-  }
-
-  Token nextToken();
-
-  // unicode_language_subtag = alpha{2,3} | alpha{5,8} ;
-  //
-  // Four character language subtags are not allowed in Unicode BCP 47 locale
-  // identifiers. Also see the comparison to Unicode CLDR locale identifiers in
-  // <https://unicode.org/reports/tr35/#BCP_47_Conformance>.
-  bool isLanguage(const Token& tok) const {
-    return tok.isAlpha() && ((2 <= tok.length() && tok.length() <= 3) ||
-                             (5 <= tok.length() && tok.length() <= 8));
-  }
-
-  // unicode_script_subtag = alpha{4} ;
-  bool isScript(const Token& tok) const {
-    return tok.isAlpha() && tok.length() == 4;
-  }
-
-  // unicode_region_subtag = (alpha{2} | digit{3}) ;
-  bool isRegion(const Token& tok) const {
-    return (tok.isAlpha() && tok.length() == 2) ||
-           (tok.isDigit() && tok.length() == 3);
-  }
-
-  // unicode_variant_subtag = (alphanum{5,8} | digit alphanum{3}) ;
-  bool isVariant(const Token& tok) const {
-    return (5 <= tok.length() && tok.length() <= 8) ||
-           (tok.length() == 4 && mozilla::IsAsciiDigit(charAt(tok.index())));
-  }
-
-  // Returns the code unit of the first character at the given singleton token.
-  // Always returns the lower case form of an alphabetical character.
-  char singletonKey(const Token& tok) const {
-    MOZ_ASSERT(tok.length() == 1);
-    return AsciiToLowerCase(charAt(tok.index()));
-  }
-
-  // extensions = unicode_locale_extensions |
-  //              transformed_extensions |
-  //              other_extensions ;
-  //
-  // unicode_locale_extensions = sep [uU] ((sep keyword)+ |
-  //                                       (sep attribute)+ (sep keyword)*) ;
-  //
-  // transformed_extensions = sep [tT] ((sep tlang (sep tfield)*) |
-  //                                    (sep tfield)+) ;
-  //
-  // other_extensions = sep [alphanum-[tTuUxX]] (sep alphanum{2,8})+ ;
-  bool isExtensionStart(const Token& tok) const {
-    return tok.length() == 1 && singletonKey(tok) != 'x';
-  }
-
-  // other_extensions = sep [alphanum-[tTuUxX]] (sep alphanum{2,8})+ ;
-  bool isOtherExtensionPart(const Token& tok) const {
-    return 2 <= tok.length() && tok.length() <= 8;
-  }
-
-  // unicode_locale_extensions = sep [uU] ((sep keyword)+ |
-  //                                       (sep attribute)+ (sep keyword)*) ;
-  // keyword = key (sep type)? ;
-  bool isUnicodeExtensionPart(const Token& tok) const {
-    return isUnicodeExtensionKey(tok) || isUnicodeExtensionType(tok) ||
-           isUnicodeExtensionAttribute(tok);
-  }
-
-  // attribute = alphanum{3,8} ;
-  bool isUnicodeExtensionAttribute(const Token& tok) const {
-    return 3 <= tok.length() && tok.length() <= 8;
-  }
-
-  // key = alphanum alpha ;
-  bool isUnicodeExtensionKey(const Token& tok) const {
-    return tok.length() == 2 && mozilla::IsAsciiAlpha(charAt(tok.index() + 1));
-  }
-
-  // type = alphanum{3,8} (sep alphanum{3,8})* ;
-  bool isUnicodeExtensionType(const Token& tok) const {
-    return 3 <= tok.length() && tok.length() <= 8;
-  }
-
-  // tkey = alpha digit ;
-  bool isTransformExtensionKey(const Token& tok) const {
-    return tok.length() == 2 && mozilla::IsAsciiAlpha(charAt(tok.index())) &&
-           mozilla::IsAsciiDigit(charAt(tok.index() + 1));
-  }
-
-  // tvalue = (sep alphanum{3,8})+ ;
-  bool isTransformExtensionPart(const Token& tok) const {
-    return 3 <= tok.length() && tok.length() <= 8;
-  }
-
-  // pu_extensions = sep [xX] (sep alphanum{1,8})+ ;
-  bool isPrivateUseStart(const Token& tok) const {
-    return tok.length() == 1 && singletonKey(tok) == 'x';
-  }
-
-  // pu_extensions = sep [xX] (sep alphanum{1,8})+ ;
-  bool isPrivateUsePart(const Token& tok) const {
-    return 1 <= tok.length() && tok.length() <= 8;
-  }
-
-  // Helper function for use in |parseBaseName| and
-  // |parseTlangInTransformExtension|.  Do not use this directly!
-  static JS::Result<bool> internalParseBaseName(JSContext* cx,
-                                                LanguageTagParser& ts,
-                                                LanguageTag& tag, Token& tok);
-
-  // Parse the `unicode_language_id` production, i.e. the
-  // language/script/region/variants portion of a language tag, into |tag|.
-  // |tok| must be the current token.
-  static JS::Result<bool> parseBaseName(JSContext* cx, LanguageTagParser& ts,
-                                        LanguageTag& tag, Token& tok) {
-    return internalParseBaseName(cx, ts, tag, tok);
-  }
-
-  // Parse the `tlang` production within a parsed 't' transform extension.
-  // The precise requirements for "previously parsed" are:
-  //
-  //   * the input begins from current token |tok| with a valid `tlang`
-  //   * the `tlang` is wholly lowercase (*not* canonical case)
-  //   * variant subtags in the `tlang` may contain duplicates and be
-  //     unordered
-  //
-  // Return an error on internal failure. Otherwise, return a success value. If
-  // there was no `tlang`, then |tag.language().missing()|. But if there was a
-  // `tlang`, then |tag| is filled with subtags exactly as they appeared in the
-  // parse input.
-  static JS::Result<JS::Ok> parseTlangInTransformExtension(
-      JSContext* cx, LanguageTagParser& ts, LanguageTag& tag, Token& tok) {
-    MOZ_ASSERT(ts.isLanguage(tok));
-    return internalParseBaseName(cx, ts, tag, tok).map([](bool parsed) {
-      MOZ_ASSERT(parsed);
-      return JS::Ok();
-    });
-  }
-
-  friend class LanguageTag;
-
-  class Range final {
-    size_t begin_;
-    size_t length_;
-
-   public:
-    Range(size_t begin, size_t length) : begin_(begin), length_(length) {}
-
-    template <typename T>
-    T* begin(T* ptr) const {
-      return ptr + begin_;
-    }
-
-    size_t length() const { return length_; }
-  };
-
-  using TFieldVector = js::Vector<Range, 8>;
-  using AttributesVector = js::Vector<Range, 8>;
-  using KeywordsVector = js::Vector<Range, 8>;
-
-  // Parse |extension|, which must be a validated, fully lowercase
-  // `transformed_extensions` subtag, and fill |tag| and |fields| from the
-  // `tlang` and `tfield` components. Data in |tag| is lowercase, consistent
-  // with |extension|.
-  static JS::Result<bool> parseTransformExtension(
-      JSContext* cx, mozilla::Span<const char> extension, LanguageTag& tag,
-      TFieldVector& fields);
-
-  // Parse |extension|, which must be a validated, fully lowercase
-  // `unicode_locale_extensions` subtag, and fill |attributes| and |keywords|
-  // from the `attribute` and `keyword` components.
-  static JS::Result<bool> parseUnicodeExtension(
-      JSContext* cx, mozilla::Span<const char> extension,
-      AttributesVector& attributes, KeywordsVector& keywords);
-
-  static JS::Result<bool> tryParse(JSContext* cx, LocaleChars& localeChars,
-                                   size_t localeLength, LanguageTag& tag);
-
- public:
-  // Parse the input string as a language tag. Reports an error to the context
-  // if the input can't be parsed completely.
-  static bool parse(JSContext* cx, JSLinearString* locale, LanguageTag& tag);
-
-  // Parse the input string as a language tag. Reports an error to the context
-  // if the input can't be parsed completely.
-  static bool parse(JSContext* cx, mozilla::Span<const char> locale,
-                    LanguageTag& tag);
-
-  // Parse the input string as a language tag. Returns Ok(true) if the input
-  // could be completely parsed, Ok(false) if the input couldn't be parsed,
-  // or Err() in case of internal error.
-  static JS::Result<bool> tryParse(JSContext* cx, JSLinearString* locale,
-                                   LanguageTag& tag);
-
-  // Parse the input string as a language tag. Returns Ok(true) if the input
-  // could be completely parsed, Ok(false) if the input couldn't be parsed,
-  // or Err() in case of internal error.
-  static JS::Result<bool> tryParse(JSContext* cx,
-                                   mozilla::Span<const char> locale,
-                                   LanguageTag& tag);
-
-  // Parse the input string as the base-name parts (language, script, region,
-  // variants) of a language tag. Ignores any trailing characters.
-  static bool parseBaseName(JSContext* cx, mozilla::Span<const char> locale,
-                            LanguageTag& tag);
-
-  // Parse the input string as the base-name parts (language, script, region,
-  // variants) of a language tag. Returns Ok(true) if the input could be
-  // completely parsed, Ok(false) if the input couldn't be parsed, or Err() in
-  // case of internal error.
-  static JS::Result<bool> tryParseBaseName(JSContext* cx,
-                                           JSLinearString* locale,
-                                           LanguageTag& tag);
-
-  // Return true iff |extension| can be parsed as a Unicode extension subtag.
-  static bool canParseUnicodeExtension(mozilla::Span<const char> extension);
-
-  // Return true iff |unicodeType| can be parsed as a Unicode extension type.
-  static bool canParseUnicodeExtensionType(JSLinearString* unicodeType);
-};
-
-MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(LanguageTagParser::TokenKind)
+[[nodiscard]] bool ParseLocale(JSContext* cx, JS::Handle<JSLinearString*> str,
+                               mozilla::intl::Locale& result);
 
 /**
  * Parse a string as a standalone |language| tag. If |str| is a standalone
  * language tag, store it in |result| and return true. Otherwise return false.
  */
-[[nodiscard]] bool ParseStandaloneLanguageTag(JS::Handle<JSLinearString*> str,
-                                              LanguageSubtag& result);
+[[nodiscard]] bool ParseStandaloneLanguageTag(
+    JS::Handle<JSLinearString*> str, mozilla::intl::LanguageSubtag& result);
 
 /**
  * Parse a string as a standalone |script| tag. If |str| is a standalone script
  * tag, store it in |result| and return true. Otherwise return false.
  */
-[[nodiscard]] bool ParseStandaloneScriptTag(JS::Handle<JSLinearString*> str,
-                                            ScriptSubtag& result);
+[[nodiscard]] bool ParseStandaloneScriptTag(
+    JS::Handle<JSLinearString*> str, mozilla::intl::ScriptSubtag& result);
 
 /**
  * Parse a string as a standalone |region| tag. If |str| is a standalone region
  * tag, store it in |result| and return true. Otherwise return false.
  */
-[[nodiscard]] bool ParseStandaloneRegionTag(JS::Handle<JSLinearString*> str,
-                                            RegionSubtag& result);
+[[nodiscard]] bool ParseStandaloneRegionTag(
+    JS::Handle<JSLinearString*> str, mozilla::intl::RegionSubtag& result);
 
 /**
  * Parse a string as an ISO-639 language code. Return |nullptr| in the result if
@@ -744,13 +65,15 @@
     JSContext* cx, JS::Handle<JSLinearString*> str);
 
 class UnicodeExtensionKeyword final {
-  char key_[LanguageTagLimits::UnicodeKeyLength];
+  char key_[mozilla::intl::LanguageTagLimits::UnicodeKeyLength];
   JSLinearString* type_;
 
  public:
-  using UnicodeKey = const char (&)[LanguageTagLimits::UnicodeKeyLength + 1];
+  using UnicodeKey =
+      const char (&)[mozilla::intl::LanguageTagLimits::UnicodeKeyLength + 1];
   using UnicodeKeySpan =
-      mozilla::Span<const char, LanguageTagLimits::UnicodeKeyLength>;
+      mozilla::Span<const char,
+                    mozilla::intl::LanguageTagLimits::UnicodeKeyLength>;
 
   UnicodeExtensionKeyword(UnicodeKey key, JSLinearString* type)
       : key_{key[0], key[1]}, type_(type) {}
@@ -762,7 +85,7 @@
 };
 
 [[nodiscard]] extern bool ApplyUnicodeExtensionToTag(
-    JSContext* cx, LanguageTag& tag,
+    JSContext* cx, mozilla::intl::Locale& tag,
     JS::HandleVector<UnicodeExtensionKeyword> keywords);
 
 }  // namespace intl
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/Locale.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/Locale.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/Locale.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/Locale.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -11,6 +11,7 @@
 #include "mozilla/ArrayUtils.h"
 #include "mozilla/Assertions.h"
 #include "mozilla/Casting.h"
+#include "mozilla/intl/Locale.h"
 #include "mozilla/Maybe.h"
 #include "mozilla/Span.h"
 #include "mozilla/TextUtils.h"
@@ -23,7 +24,9 @@
 
 #include "builtin/Boolean.h"
 #include "builtin/intl/CommonFunctions.h"
+#include "builtin/intl/FormatBuffer.h"
 #include "builtin/intl/LanguageTag.h"
+#include "builtin/intl/StringAsciiChars.h"
 #include "builtin/String.h"
 #include "gc/Rooting.h"
 #include "js/Conversions.h"
@@ -42,10 +45,7 @@
 #include "vm/NativeObject-inl.h"
 
 using namespace js;
-using namespace js::intl::LanguageTagLimits;
-
-using intl::LanguageTag;
-using intl::LanguageTagParser;
+using namespace mozilla::intl::LanguageTagLimits;
 
 const JSClass LocaleObject::class_ = {
     "Intl.Locale",
@@ -60,7 +60,7 @@
 }
 
 // Return the length of the base-name subtags.
-static size_t BaseNameLength(const LanguageTag& tag) {
+static size_t BaseNameLength(const mozilla::intl::Locale& tag) {
   size_t baseNameLength = tag.language().length();
   if (tag.script().present()) {
     baseNameLength += 1 + tag.script().length();
@@ -88,7 +88,7 @@
 
 // Compute the Unicode extension's index and length in the extension subtag.
 static mozilla::Maybe<IndexAndLength> UnicodeExtensionPosition(
-    const LanguageTag& tag) {
+    const mozilla::intl::Locale& tag) {
   size_t index = 0;
   for (const auto& extension : tag.extensions()) {
     MOZ_ASSERT(!mozilla::IsAsciiUppercaseAlpha(extension[0]),
@@ -106,8 +106,14 @@
 }
 
 static LocaleObject* CreateLocaleObject(JSContext* cx, HandleObject prototype,
-                                        const LanguageTag& tag) {
-  RootedString tagStr(cx, tag.toString(cx));
+                                        const mozilla::intl::Locale& tag) {
+  intl::FormatBuffer<char, intl::INITIAL_CHAR_BUFFER_SIZE> buffer(cx);
+  if (auto result = tag.toString(buffer); result.isErr()) {
+    intl::ReportInternalError(cx, result.unwrapErr());
+    return nullptr;
+  }
+
+  RootedString tagStr(cx, buffer.toString(cx));
   if (!tagStr) {
     return nullptr;
   }
@@ -142,9 +148,27 @@
   return locale;
 }
 
-static inline bool IsValidUnicodeExtensionValue(JSLinearString* linear) {
-  return linear->length() > 0 &&
-         LanguageTagParser::canParseUnicodeExtensionType(linear);
+static inline bool IsValidUnicodeExtensionValue(JSContext* cx,
+                                                JSLinearString* linear,
+                                                bool* isValid) {
+  if (linear->length() == 0) {
+    *isValid = false;
+    return true;
+  }
+
+  if (!StringIsAscii(linear)) {
+    *isValid = false;
+    return true;
+  }
+
+  intl::StringAsciiChars chars(linear);
+  if (!chars.init(cx)) {
+    return false;
+  }
+
+  *isValid =
+      mozilla::intl::LocaleParser::canParseUnicodeExtensionType(chars).isOk();
+  return true;
 }
 
 /** Iterate through (sep keyword) in a valid, lowercased Unicode extension. */
@@ -274,7 +298,7 @@
 /**
  * ApplyOptionsToTag ( tag, options )
  */
-static bool ApplyOptionsToTag(JSContext* cx, LanguageTag& tag,
+static bool ApplyOptionsToTag(JSContext* cx, mozilla::intl::Locale& tag,
                               HandleObject options) {
   // Steps 1-2 (Already performed in caller).
 
@@ -286,7 +310,7 @@
   }
 
   // Step 4.
-  intl::LanguageSubtag language;
+  mozilla::intl::LanguageSubtag language;
   if (option && !intl::ParseStandaloneLanguageTag(option, language)) {
     if (UniqueChars str = QuoteString(cx, option, '"')) {
       JS_ReportErrorNumberASCII(cx, js::GetErrorMessage, nullptr,
@@ -302,7 +326,7 @@
   }
 
   // Step 6.
-  intl::ScriptSubtag script;
+  mozilla::intl::ScriptSubtag script;
   if (option && !intl::ParseStandaloneScriptTag(option, script)) {
     if (UniqueChars str = QuoteString(cx, option, '"')) {
       JS_ReportErrorNumberASCII(cx, js::GetErrorMessage, nullptr,
@@ -318,7 +342,7 @@
   }
 
   // Step 8.
-  intl::RegionSubtag region;
+  mozilla::intl::RegionSubtag region;
   if (option && !intl::ParseStandaloneRegionTag(option, region)) {
     if (UniqueChars str = QuoteString(cx, option, '"')) {
       JS_ReportErrorNumberASCII(cx, js::GetErrorMessage, nullptr,
@@ -350,8 +374,16 @@
     // Step 13.
     // Optimized to only canonicalize the base-name subtags. All other
     // canonicalization steps will happen later.
-    if (!tag.canonicalizeBaseName(cx)) {
-      return true;
+    auto result = tag.canonicalizeBaseName();
+    if (result.isErr()) {
+      if (result.unwrapErr() ==
+          mozilla::intl::Locale::CanonicalizationError::DuplicateVariant) {
+        JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
+                                  JSMSG_DUPLICATE_VARIANT_SUBTAG);
+      } else {
+        intl::ReportInternalError(cx);
+      }
+      return false;
     }
   }
 
@@ -362,7 +394,7 @@
  * ApplyUnicodeExtensionToTag( tag, options, relevantExtensionKeys )
  */
 bool js::intl::ApplyUnicodeExtensionToTag(
-    JSContext* cx, LanguageTag& tag,
+    JSContext* cx, mozilla::intl::Locale& tag,
     JS::HandleVector<intl::UnicodeExtensionKeyword> keywords) {
   // If no Unicode extensions were present in the options object, we can skip
   // everything below and directly return.
@@ -437,12 +469,12 @@
     return false;
   }
 
-  // Insert the new Unicode extension string into the language tag.
-  UniqueChars newExtensionChars(newExtension.extractOrCopyRawBuffer());
-  if (!newExtensionChars) {
+  if (!tag.setUnicodeExtension(newExtension.begin())) {
+    intl::ReportInternalError(cx);
     return false;
   }
-  return tag.setUnicodeExtension(std::move(newExtensionChars));
+
+  return true;
 }
 
 static JS::Result<JSString*> LanguageTagFromMaybeWrappedLocale(JSContext* cx,
@@ -521,12 +553,19 @@
   }
 
   // ApplyOptionsToTag, steps 2 and 9.
-  LanguageTag tag(cx);
-  if (!LanguageTagParser::parse(cx, tagLinearStr, tag)) {
+  mozilla::intl::Locale tag;
+  if (!intl::ParseLocale(cx, tagLinearStr, tag)) {
     return false;
   }
 
-  if (!tag.canonicalizeBaseName(cx)) {
+  if (auto result = tag.canonicalizeBaseName(); result.isErr()) {
+    if (result.unwrapErr() ==
+        mozilla::intl::Locale::CanonicalizationError::DuplicateVariant) {
+      JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
+                                JSMSG_DUPLICATE_VARIANT_SUBTAG);
+    } else {
+      intl::ReportInternalError(cx);
+    }
     return false;
   }
 
@@ -547,7 +586,12 @@
 
     // Steps 15-16.
     if (calendar) {
-      if (!IsValidUnicodeExtensionValue(calendar)) {
+      bool isValid;
+      if (!IsValidUnicodeExtensionValue(cx, calendar, &isValid)) {
+        return false;
+      }
+
+      if (!isValid) {
         if (UniqueChars str = QuoteString(cx, calendar, '"')) {
           JS_ReportErrorNumberASCII(cx, js::GetErrorMessage, nullptr,
                                     JSMSG_INVALID_OPTION_VALUE, "calendar",
@@ -569,7 +613,12 @@
 
     // Steps 18-19.
     if (collation) {
-      if (!IsValidUnicodeExtensionValue(collation)) {
+      bool isValid;
+      if (!IsValidUnicodeExtensionValue(cx, collation, &isValid)) {
+        return false;
+      }
+
+      if (!isValid) {
         if (UniqueChars str = QuoteString(cx, collation, '"')) {
           JS_ReportErrorNumberASCII(cx, js::GetErrorMessage, nullptr,
                                     JSMSG_INVALID_OPTION_VALUE, "collation",
@@ -654,7 +703,11 @@
 
     // Steps 28-29.
     if (numberingSystem) {
-      if (!IsValidUnicodeExtensionValue(numberingSystem)) {
+      bool isValid;
+      if (!IsValidUnicodeExtensionValue(cx, numberingSystem, &isValid)) {
+        return false;
+      }
+      if (!isValid) {
         if (UniqueChars str = QuoteString(cx, numberingSystem, '"')) {
           JS_ReportErrorNumberASCII(cx, js::GetErrorMessage, nullptr,
                                     JSMSG_INVALID_OPTION_VALUE,
@@ -676,7 +729,14 @@
 
   // ApplyOptionsToTag, steps 9 and 13.
   // ApplyUnicodeExtensionToTag, step 9.
-  if (!tag.canonicalizeExtensions(cx)) {
+  if (auto result = tag.canonicalizeExtensions(); result.isErr()) {
+    if (result.unwrapErr() ==
+        mozilla::intl::Locale::CanonicalizationError::DuplicateVariant) {
+      JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
+                                JSMSG_DUPLICATE_VARIANT_SUBTAG);
+    } else {
+      intl::ReportInternalError(cx);
+    }
     return false;
   }
 
@@ -840,19 +900,25 @@
     languageLength = length;
   }
 
+  // Tell the analysis the |IsStructurallyValid*Tag| functions can't GC.
+  JS::AutoSuppressGCAnalysis nogc;
+
   IndexAndLength language{0, languageLength};
-  MOZ_ASSERT(intl::IsStructurallyValidLanguageTag(language.spanOf(baseName)));
+  MOZ_ASSERT(
+      mozilla::intl::IsStructurallyValidLanguageTag(language.spanOf(baseName)));
 
   mozilla::Maybe<IndexAndLength> script{};
   if (scriptIndex) {
     script.emplace(scriptIndex, ScriptLength);
-    MOZ_ASSERT(intl::IsStructurallyValidScriptTag(script->spanOf(baseName)));
+    MOZ_ASSERT(
+        mozilla::intl::IsStructurallyValidScriptTag(script->spanOf(baseName)));
   }
 
   mozilla::Maybe<IndexAndLength> region{};
   if (regionIndex) {
     region.emplace(regionIndex, regionLength);
-    MOZ_ASSERT(intl::IsStructurallyValidRegionTag(region->spanOf(baseName)));
+    MOZ_ASSERT(
+        mozilla::intl::IsStructurallyValidRegionTag(region->spanOf(baseName)));
   }
 
   return {language, script, region};
@@ -876,12 +942,13 @@
     return false;
   }
 
-  LanguageTag tag(cx);
-  if (!LanguageTagParser::parse(cx, tagStr, tag)) {
+  mozilla::intl::Locale tag;
+  if (!intl::ParseLocale(cx, tagStr, tag)) {
     return false;
   }
 
-  if (!tag.addLikelySubtags(cx)) {
+  if (!tag.addLikelySubtags()) {
+    intl::ReportInternalError(cx);
     return false;
   }
 
@@ -912,12 +979,13 @@
     return false;
   }
 
-  LanguageTag tag(cx);
-  if (!LanguageTagParser::parse(cx, tagStr, tag)) {
+  mozilla::intl::Locale tag;
+  if (!intl::ParseLocale(cx, tagStr, tag)) {
     return false;
   }
 
-  if (!tag.removeLikelySubtags(cx)) {
+  if (!tag.removeLikelySubtags()) {
+    intl::ReportInternalError(cx);
     return false;
   }
 
@@ -1280,19 +1348,34 @@
     return true;
   }
 
-  LanguageTag tag(cx);
-  if (!LanguageTagParser::parse(cx, tagLinearStr, tag)) {
+  mozilla::intl::Locale tag;
+  if (!intl::ParseLocale(cx, tagLinearStr, tag)) {
+    return false;
+  }
+
+  auto result = tag.canonicalize();
+  if (result.isErr()) {
+    if (result.unwrapErr() ==
+        mozilla::intl::Locale::CanonicalizationError::DuplicateVariant) {
+      JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
+                                JSMSG_DUPLICATE_VARIANT_SUBTAG);
+    } else {
+      intl::ReportInternalError(cx);
+    }
     return false;
   }
 
-  if (!tag.canonicalize(cx)) {
+  intl::FormatBuffer<char, intl::INITIAL_CHAR_BUFFER_SIZE> buffer(cx);
+  if (auto result = tag.toString(buffer); result.isErr()) {
+    intl::ReportInternalError(cx, result.unwrapErr());
     return false;
   }
 
-  JSString* resultStr = tag.toString(cx);
+  JSString* resultStr = buffer.toString(cx);
   if (!resultStr) {
     return false;
   }
+
   args.rval().setString(resultStr);
   return true;
 }
@@ -1307,22 +1390,45 @@
     return false;
   }
 
-  LanguageTag tag(cx);
-  bool ok;
-  JS_TRY_VAR_OR_RETURN_FALSE(cx, ok,
-                             LanguageTagParser::tryParse(cx, linear, tag));
+  mozilla::intl::Locale tag;
+  {
+    if (!StringIsAscii(linear)) {
+      // The caller handles invalid inputs.
+      args.rval().setNull();
+      return true;
+    }
 
-  // The caller handles invalid inputs.
-  if (!ok) {
-    args.rval().setNull();
-    return true;
+    intl::StringAsciiChars chars(linear);
+    if (!chars.init(cx)) {
+      return false;
+    }
+
+    if (mozilla::intl::LocaleParser::tryParse(chars, tag).isErr()) {
+      // The caller handles invalid inputs.
+      args.rval().setNull();
+      return true;
+    }
   }
 
-  if (!tag.canonicalize(cx)) {
+  auto result = tag.canonicalize();
+  if (result.isErr()) {
+    if (result.unwrapErr() ==
+        mozilla::intl::Locale::CanonicalizationError::DuplicateVariant) {
+      JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
+                                JSMSG_DUPLICATE_VARIANT_SUBTAG);
+    } else {
+      intl::ReportInternalError(cx);
+    }
+    return false;
+  }
+
+  intl::FormatBuffer<char, intl::INITIAL_CHAR_BUFFER_SIZE> buffer(cx);
+  if (auto result = tag.toString(buffer); result.isErr()) {
+    intl::ReportInternalError(cx, result.unwrapErr());
     return false;
   }
 
-  JSString* resultStr = tag.toString(cx);
+  JSString* resultStr = buffer.toString(cx);
   if (!resultStr) {
     return false;
   }
@@ -1350,7 +1456,11 @@
     return false;
   }
 
-  if (!IsValidUnicodeExtensionValue(unicodeType)) {
+  bool isValid;
+  if (!IsValidUnicodeExtensionValue(cx, unicodeType, &isValid)) {
+    return false;
+  }
+  if (!isValid) {
     UniqueChars optionChars = EncodeAscii(cx, optionArg.toString());
     if (!optionChars) {
       return false;
@@ -1391,8 +1501,8 @@
   MOZ_ASSERT(strlen(unicodeTypeChars.get()) == unicodeTypeLength);
 
   // Convert into canonical case before searching for replacements.
-  intl::AsciiToLowerCase(unicodeTypeChars.get(), unicodeTypeLength,
-                         unicodeTypeChars.get());
+  mozilla::intl::AsciiToLowerCase(unicodeTypeChars.get(), unicodeTypeLength,
+                                  unicodeTypeChars.get());
 
   auto key = mozilla::Span(unicodeKey, UnicodeKeyLength);
   auto type = mozilla::Span(unicodeTypeChars.get(), unicodeTypeLength);
@@ -1400,7 +1510,7 @@
   // Search if there's a replacement for the current Unicode keyword.
   JSString* result;
   if (const char* replacement =
-          LanguageTag::replaceUnicodeExtensionType(key, type)) {
+          mozilla::intl::Locale::replaceUnicodeExtensionType(key, type)) {
     result = NewStringCopyZ<CanGC>(cx, replacement);
   } else {
     result = StringToLowerCase(cx, unicodeType);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/make_intl_data.py firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/make_intl_data.py
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/make_intl_data.py	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/make_intl_data.py	2021-10-20 19:28:22.000000000 +0000
@@ -17,7 +17,8 @@
     This script extracts information about 1) mappings between deprecated and
     current Unicode BCP 47 locale identifiers, and 2) deprecated and current
     BCP 47 Unicode extension value from CLDR, and converts it to C++ mapping
-    code in LanguageTagGenerated.cpp. The code is used in LanguageTag.cpp.
+    code in intl/components/LocaleGenerated.cpp. The code is used in
+    intl/components/Locale.cpp.
 
 
     Target "tzdata":
@@ -125,7 +126,7 @@
     writeMappingHeader(println, description, source, url)
     println(
         """
-bool js::intl::LanguageTag::{0}({1} {2}) {{
+bool mozilla::intl::Locale::{0}({1} {2}) {{
   MOZ_ASSERT({3}({2}.span()));
   MOZ_ASSERT({4}({2}.span()));
 """.format(
@@ -309,7 +310,7 @@
     writeMappingHeader(println, description, source, url)
     println(
         """
-void js::intl::LanguageTag::performComplexLanguageMappings() {
+void mozilla::intl::Locale::performComplexLanguageMappings() {
   MOZ_ASSERT(IsStructurallyValidLanguageTag(language().span()));
   MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language().span()));
 """.lstrip()
@@ -406,7 +407,7 @@
     writeMappingHeader(println, description, source, url)
     println(
         """
-void js::intl::LanguageTag::performComplexRegionMappings() {
+void mozilla::intl::Locale::performComplexRegionMappings() {
   MOZ_ASSERT(IsStructurallyValidLanguageTag(language().span()));
   MOZ_ASSERT(IsCanonicallyCasedLanguageTag(language().span()));
   MOZ_ASSERT(IsStructurallyValidRegionTag(region().span()));
@@ -524,7 +525,7 @@
   return str;
 }
 
-static const char* ToCharPointer(const js::UniqueChars& str) {
+static const char* ToCharPointer(const mozilla::intl::UniqueChars& str) {
   return str.get();
 }
 
@@ -537,7 +538,7 @@
     writeMappingHeader(println, description, source, url)
     println(
         """
-bool js::intl::LanguageTag::performVariantMappings(JSContext* cx) {
+bool mozilla::intl::Locale::performVariantMappings() {
   // The variant subtags need to be sorted for binary search.
   MOZ_ASSERT(std::is_sorted(variants_.begin(), variants_.end(),
                             IsLessThan<decltype(variants_)::ElementType>));
@@ -547,9 +548,9 @@
   };
 
   auto insertVariantSortedIfNotPresent = [&](const char* variant) {
-    auto* p = std::lower_bound(variants_.begin(), variants_.end(), variant,
-                               IsLessThan<decltype(variants_)::ElementType,
-                                          decltype(variant)>);
+    auto* p = std::lower_bound(
+        variants_.begin(), variants_.end(), variant,
+        IsLessThan<decltype(variants_)::ElementType, decltype(variant)>);
 
     // Don't insert the replacement when already present.
     if (p != variants_.end() && strcmp(p->get(), variant) == 0) {
@@ -557,14 +558,11 @@
     }
 
     // Insert the preferred variant in sort order.
-    auto preferred = DuplicateString(cx, variant);
-    if (!preferred) {
-      return false;
-    }
+    auto preferred = DuplicateStringToUniqueChars(variant);
     return !!variants_.insert(p, std::move(preferred));
   };
 
-  for (size_t i = 0; i < variants_.length(); ) {
+  for (size_t i = 0; i < variants_.length();) {
     const char* variant = variants_[i].get();
     MOZ_ASSERT(IsCanonicallyCasedVariantTag(mozilla::MakeStringSpan(variant)));
 """.lstrip()
@@ -657,7 +655,7 @@
     writeMappingHeader(println, description, source, url)
     println(
         """\
-bool js::intl::LanguageTag::updateLegacyMappings(JSContext* cx) {
+bool mozilla::intl::Locale::updateLegacyMappings() {
   // We're mapping legacy tags to non-legacy form here.
   // Other tags remain unchanged.
   //
@@ -672,8 +670,10 @@
   }
 
   for ([[maybe_unused]] const auto& variant : variants()) {
-    MOZ_ASSERT(IsStructurallyValidVariantTag(mozilla::MakeStringSpan(variant.get())));
-    MOZ_ASSERT(IsCanonicallyCasedVariantTag(mozilla::MakeStringSpan(variant.get())));
+    MOZ_ASSERT(
+        IsStructurallyValidVariantTag(mozilla::MakeStringSpan(variant.get())));
+    MOZ_ASSERT(
+        IsCanonicallyCasedVariantTag(mozilla::MakeStringSpan(variant.get())));
   }
 
   // The variant subtags need to be sorted for binary search.
@@ -702,10 +702,7 @@
     }
 
     // Insert the preferred variant in sort order.
-    auto preferred = DuplicateString(cx, variant);
-    if (!preferred) {
-      return false;
-    }
+    auto preferred = DuplicateStringToUniqueChars(variant);
     return !!variants_.insert(p, std::move(preferred));
   };
 
@@ -924,7 +921,7 @@
     writeMappingHeader(println, description, source, url)
     println(
         """\
-bool js::intl::LanguageTag::signLanguageMapping(LanguageSubtag& language,
+bool mozilla::intl::Locale::signLanguageMapping(LanguageSubtag& language,
                                                 const RegionSubtag& region) {
   MOZ_ASSERT(language.equalTo("sgn"));
   MOZ_ASSERT(IsStructurallyValidRegionTag(region.span()));
@@ -1646,39 +1643,36 @@
 #include <string>
 #include <type_traits>
 
-#include "builtin/intl/LanguageTag.h"
-#include "util/Text.h"
-#include "vm/JSContext.h"
+#include "mozilla/intl/Locale.h"
 
-using namespace js::intl::LanguageTagLimits;
+using namespace mozilla::intl::LanguageTagLimits;
 
 template <size_t Length, size_t TagLength, size_t SubtagLength>
 static inline bool HasReplacement(
     const char (&subtags)[Length][TagLength],
-    const js::intl::LanguageTagSubtag<SubtagLength>& subtag) {
+    const mozilla::intl::LanguageTagSubtag<SubtagLength>& subtag) {
   MOZ_ASSERT(subtag.length() == TagLength - 1,
              "subtag must have the same length as the list of subtags");
 
   const char* ptr = subtag.span().data();
   return std::binary_search(std::begin(subtags), std::end(subtags), ptr,
                             [](const char* a, const char* b) {
-    return memcmp(a, b, TagLength - 1) < 0;
-  });
+                              return memcmp(a, b, TagLength - 1) < 0;
+                            });
 }
 
 template <size_t Length, size_t TagLength, size_t SubtagLength>
 static inline const char* SearchReplacement(
-    const char (&subtags)[Length][TagLength],
-    const char* (&aliases)[Length],
-    const js::intl::LanguageTagSubtag<SubtagLength>& subtag) {
+    const char (&subtags)[Length][TagLength], const char* (&aliases)[Length],
+    const mozilla::intl::LanguageTagSubtag<SubtagLength>& subtag) {
   MOZ_ASSERT(subtag.length() == TagLength - 1,
              "subtag must have the same length as the list of subtags");
 
   const char* ptr = subtag.span().data();
   auto p = std::lower_bound(std::begin(subtags), std::end(subtags), ptr,
                             [](const char* a, const char* b) {
-    return memcmp(a, b, TagLength - 1) < 0;
-  });
+                              return memcmp(a, b, TagLength - 1) < 0;
+                            });
   if (p != std::end(subtags) && memcmp(*p, ptr, TagLength - 1) == 0) {
     return aliases[std::distance(std::begin(subtags), p)];
   }
@@ -1695,32 +1689,23 @@
 }
 
 static bool IsCanonicallyCasedLanguageTag(mozilla::Span<const char> span) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  return std::all_of(span.begin(), span.end(), mozilla::IsAsciiLowercaseAlpha<char>);
+  return std::all_of(span.begin(), span.end(),
+                     mozilla::IsAsciiLowercaseAlpha<char>);
 }
 
 static bool IsCanonicallyCasedScriptTag(mozilla::Span<const char> span) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
   return mozilla::IsAsciiUppercaseAlpha(span[0]) &&
-         std::all_of(span.begin() + 1, span.end(), mozilla::IsAsciiLowercaseAlpha<char>);
+         std::all_of(span.begin() + 1, span.end(),
+                     mozilla::IsAsciiLowercaseAlpha<char>);
 }
 
 static bool IsCanonicallyCasedRegionTag(mozilla::Span<const char> span) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
-  return std::all_of(span.begin(), span.end(), mozilla::IsAsciiUppercaseAlpha<char>) ||
+  return std::all_of(span.begin(), span.end(),
+                     mozilla::IsAsciiUppercaseAlpha<char>) ||
          std::all_of(span.begin(), span.end(), mozilla::IsAsciiDigit<char>);
 }
 
 static bool IsCanonicallyCasedVariantTag(mozilla::Span<const char> span) {
-  // Tell the analysis the |std::all_of| function can't GC.
-  JS::AutoSuppressGCAnalysis nogc;
-
   return std::all_of(span.begin(), span.end(), IsAsciiLowercaseAlphanumeric);
 }
 
@@ -1729,7 +1714,8 @@
 }
 
 static bool IsCanonicallyCasedUnicodeType(mozilla::Span<const char> type) {
-  return std::all_of(type.begin(), type.end(), IsAsciiLowercaseAlphanumericOrDash);
+  return std::all_of(type.begin(), type.end(),
+                     IsAsciiLowercaseAlphanumericOrDash);
 }
 
 static bool IsCanonicallyCasedTransformKey(mozilla::Span<const char> key) {
@@ -1737,7 +1723,8 @@
 }
 
 static bool IsCanonicallyCasedTransformType(mozilla::Span<const char> type) {
-  return std::all_of(type.begin(), type.end(), IsAsciiLowercaseAlphanumericOrDash);
+  return std::all_of(type.begin(), type.end(),
+                     IsAsciiLowercaseAlphanumericOrDash);
 }
 #endif
 """.rstrip()
@@ -2049,7 +2036,7 @@
 
 
 def updateCLDRLangTags(args):
-    """ Update the LanguageTagGenerated.cpp file. """
+    """ Update the LocaleGenerated.cpp file. """
     version = args.version
     url = args.url
     out = args.out
@@ -3204,16 +3191,14 @@
     println(
         """
 template <size_t Length>
-static inline bool Is{0}Key(
-  mozilla::Span<const char> key, const char (&str)[Length]) {{
+static inline bool Is{0}Key(mozilla::Span<const char> key, const char (&str)[Length]) {{
   static_assert(Length == {0}KeyLength + 1,
                 "{0} extension key is two characters long");
   return memcmp(key.data(), str, Length - 1) == 0;
 }}
 
 template <size_t Length>
-static inline bool Is{0}Type(
-  mozilla::Span<const char> type, const char (&str)[Length]) {{
+static inline bool Is{0}Type(mozilla::Span<const char> type, const char (&str)[Length]) {{
   static_assert(Length > {0}KeyLength + 1,
                 "{0} extension type contains more than two characters");
   return type.size() == (Length - 1) &&
@@ -3262,8 +3247,8 @@
 
   auto p = std::lower_bound(std::begin(types), std::end(types), type,
                             [](const auto& a, const auto& b) {{
-    return Compare{0}Type(a, b) < 0;
-  }});
+                              return Compare{0}Type(a, b) < 0;
+                            }});
   if (p != std::end(types) && Compare{0}Type(*p, type) == 0) {{
     return aliases[std::distance(std::begin(types), p)];
   }}
@@ -3285,7 +3270,7 @@
  * Spec: https://www.unicode.org/reports/tr35/#Unicode_Locale_Extension_Data_Files
  * Spec: https://www.unicode.org/reports/tr35/#t_Extension
  */
-const char* js::intl::LanguageTag::replace{0}ExtensionType(
+const char* mozilla::intl::Locale::replace{0}ExtensionType(
     mozilla::Span<const char> key, mozilla::Span<const char> type) {{
   MOZ_ASSERT(key.size() == {0}KeyLength);
   MOZ_ASSERT(IsCanonicallyCased{0}Key(key));
@@ -3307,11 +3292,11 @@
 
         for entries in grouper(subtags, max_entries):
             entries = (
-                '"{}"'.format(tag).rjust(length + 2)
+                '"{}"'.format(tag).center(length + 2)
                 for tag in entries
                 if tag is not None
             )
-            println("      {},".format(", ".join(entries)))
+            println("        {},".format(", ".join(entries)))
 
         println("    };")
 
@@ -4054,7 +4039,9 @@
     )
     parser_cldr_tags.add_argument(
         "--out",
-        default="LanguageTagGenerated.cpp",
+        default=os.path.join(
+            topsrcdir, "intl", "components", "src", "LocaleGenerated.cpp"
+        ),
         help="Output file (default: %(default)s)",
     )
     parser_cldr_tags.add_argument(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/NumberFormat.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/NumberFormat.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/NumberFormat.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/NumberFormat.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -11,6 +11,7 @@
 #include "mozilla/Assertions.h"
 #include "mozilla/Casting.h"
 #include "mozilla/FloatingPoint.h"
+#include "mozilla/intl/Locale.h"
 #include "mozilla/intl/MeasureUnit.h"
 #include "mozilla/intl/NumberFormat.h"
 #include "mozilla/intl/NumberingSystem.h"
@@ -31,6 +32,7 @@
 #include "builtin/Array.h"
 #include "builtin/intl/CommonFunctions.h"
 #include "builtin/intl/DecimalNumber.h"
+#include "builtin/intl/FormatBuffer.h"
 #include "builtin/intl/LanguageTag.h"
 #include "builtin/intl/MeasureUnitGenerated.h"
 #include "builtin/intl/RelativeTimeFormat.h"
@@ -288,14 +290,14 @@
 
   // ICU expects numberingSystem as a Unicode locale extensions on locale.
 
-  intl::LanguageTag tag(cx);
+  mozilla::intl::Locale tag;
   {
-    JSLinearString* locale = value.toString()->ensureLinear(cx);
+    RootedLinearString locale(cx, value.toString()->ensureLinear(cx));
     if (!locale) {
       return nullptr;
     }
 
-    if (!intl::LanguageTagParser::parse(cx, locale, tag)) {
+    if (!intl::ParseLocale(cx, locale, tag)) {
       return nullptr;
     }
   }
@@ -326,7 +328,12 @@
     return nullptr;
   }
 
-  return tag.toStringZ(cx);
+  intl::FormatBuffer<char> buffer(cx);
+  if (auto result = tag.toString(buffer); result.isErr()) {
+    intl::ReportInternalError(cx, result.unwrapErr());
+    return nullptr;
+  }
+  return buffer.extractStringZ();
 }
 
 struct NumberFormatOptions : public mozilla::intl::NumberRangeFormatOptions {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/RelativeTimeFormat.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/RelativeTimeFormat.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/RelativeTimeFormat.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/RelativeTimeFormat.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -165,14 +165,14 @@
 
   // ICU expects numberingSystem as a Unicode locale extensions on locale.
 
-  intl::LanguageTag tag(cx);
+  mozilla::intl::Locale tag;
   {
-    JSLinearString* locale = value.toString()->ensureLinear(cx);
+    RootedLinearString locale(cx, value.toString()->ensureLinear(cx));
     if (!locale) {
       return nullptr;
     }
 
-    if (!intl::LanguageTagParser::parse(cx, locale, tag)) {
+    if (!intl::ParseLocale(cx, locale, tag)) {
       return nullptr;
     }
   }
@@ -203,7 +203,13 @@
     return nullptr;
   }
 
-  UniqueChars locale = tag.toStringZ(cx);
+  intl::FormatBuffer<char> buffer(cx);
+  if (auto result = tag.toString(buffer); result.isErr()) {
+    intl::ReportInternalError(cx, result.unwrapErr());
+    return nullptr;
+  }
+
+  UniqueChars locale = buffer.extractStringZ();
   if (!locale) {
     return nullptr;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/SharedIntlData.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/SharedIntlData.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/SharedIntlData.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/SharedIntlData.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -377,7 +377,7 @@
     // + 4 * Alphanum script subtag
     // + 1 separator
     // + 2 * Alpha region subtag
-    using namespace intl::LanguageTagLimits;
+    using namespace mozilla::intl::LanguageTagLimits;
     static constexpr size_t MinLanguageLength = 2;
     static constexpr size_t MinLengthForScriptAndRegion =
         MinLanguageLength + 1 + ScriptLength + 1 + AlphaRegionLength;
@@ -407,7 +407,8 @@
 
     // Continue with the next locale if we didn't find a script subtag.
     size_t scriptLength = sep - script;
-    if (!IsStructurallyValidScriptTag<char>({script, scriptLength})) {
+    if (!mozilla::intl::IsStructurallyValidScriptTag<char>(
+            {script, scriptLength})) {
       continue;
     }
 
@@ -419,7 +420,8 @@
 
     // Continue with the next locale if we didn't find a region subtag.
     size_t regionLength = (sep ? sep : lang.end()) - region;
-    if (!IsStructurallyValidRegionTag<char>({region, regionLength})) {
+    if (!mozilla::intl::IsStructurallyValidRegionTag<char>(
+            {region, regionLength})) {
       continue;
     }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/StringAsciiChars.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/StringAsciiChars.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/intl/StringAsciiChars.h	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/intl/StringAsciiChars.h	2021-10-20 19:28:22.000000000 +0000
@@ -0,0 +1,78 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef builtin_intl_StringAsciiChars_h
+#define builtin_intl_StringAsciiChars_h
+
+#include "mozilla/Assertions.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/Span.h"
+#include "mozilla/TextUtils.h"
+
+#include <stddef.h>
+
+#include "js/GCAPI.h"
+#include "js/TypeDecls.h"
+#include "js/Vector.h"
+
+#include "vm/StringType.h"
+
+namespace js::intl {
+
+/**
+ * String view of an ASCII-only string.
+ *
+ * This holds a reference to a JSLinearString and can produce a string view
+ * into that string. If the string is represented by Latin1 characters, the
+ * span is returned directly. If the string is represented by UTF-16
+ * characters, it copies the char16_t characters into a char array, and then
+ * returns a span based on the copy.
+ *
+ * This allows us to avoid copying for the common use case that the ASCII
+ * characters are represented in Latin1.
+ */
+class MOZ_STACK_CLASS StringAsciiChars final {
+  // When copying string characters, use this many bytes of inline storage.
+  static const size_t InlineCapacity = 24;
+
+  JS::AutoCheckCannotGC nogc_;
+
+  JSLinearString* str_;
+
+  mozilla::Maybe<Vector<Latin1Char, InlineCapacity>> ownChars_;
+
+ public:
+  explicit StringAsciiChars(JSLinearString* str) : str_(str) {
+    MOZ_ASSERT(StringIsAscii(str));
+  }
+
+  operator mozilla::Span<const char>() const {
+    if (str_->hasLatin1Chars()) {
+      return mozilla::AsChars(str_->latin1Range(nogc_));
+    }
+    return mozilla::AsChars(mozilla::Span<const Latin1Char>(*ownChars_));
+  }
+
+  [[nodiscard]] bool init(JSContext* cx) {
+    if (str_->hasLatin1Chars()) {
+      return true;
+    }
+
+    ownChars_.emplace(cx);
+    if (!ownChars_->resize(str_->length())) {
+      return false;
+    }
+
+    js::CopyChars(ownChars_->begin(), *str_);
+
+    return true;
+  }
+};
+
+}  // namespace js::intl
+
+#endif  // builtin_intl_StringAsciiChars_h
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/TestingFunctions.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/TestingFunctions.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/builtin/TestingFunctions.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/builtin/TestingFunctions.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -860,6 +860,41 @@
   return true;
 }
 
+static bool WasmMaxMemoryPages(JSContext* cx, unsigned argc, Value* vp) {
+  CallArgs args = CallArgsFromVp(argc, vp);
+  if (args.length() < 1) {
+    JS_ReportErrorASCII(cx, "not enough arguments");
+    return false;
+  }
+  if (!args.get(0).isString()) {
+    JS_ReportErrorASCII(cx, "index type must be a string");
+    return false;
+  }
+  RootedString s(cx, args.get(0).toString());
+  RootedLinearString ls(cx, s->ensureLinear(cx));
+  if (!ls) {
+    return false;
+  }
+  if (StringEqualsLiteral(ls, "i32")) {
+    args.rval().setInt32(
+        int32_t(wasm::MaxMemoryPages(wasm::IndexType::I32).value()));
+    return true;
+  }
+  if (StringEqualsLiteral(ls, "i64")) {
+#ifdef ENABLE_WASM_MEMORY64
+    if (wasm::Memory64Available(cx)) {
+      args.rval().setInt32(
+          int32_t(wasm::MaxMemoryPages(wasm::IndexType::I64).value()));
+      return true;
+    }
+#endif
+    JS_ReportErrorASCII(cx, "memory64 not enabled");
+    return false;
+  }
+  JS_ReportErrorASCII(cx, "bad index type");
+  return false;
+}
+
 static bool WasmThreadsEnabled(JSContext* cx, unsigned argc, Value* vp) {
   CallArgs args = CallArgsFromVp(argc, vp);
   args.rval().setBoolean(wasm::ThreadsAvailable(cx));
@@ -4672,9 +4707,9 @@
 // ShapeSnapshot holds information about an object's properties. This is used
 // for checking object and shape changes between two points in time.
 class ShapeSnapshot {
-  GCPtr<JSObject*> object_;
-  GCPtr<Shape*> shape_;
-  GCPtr<BaseShape*> baseShape_;
+  HeapPtr<JSObject*> object_;
+  HeapPtr<Shape*> shape_;
+  HeapPtr<BaseShape*> baseShape_;
   ObjectFlags objectFlags_;
 
   GCVector<HeapPtr<Value>, 8> slots_;
@@ -7954,6 +7989,15 @@
 "  Returns a boolean indicating whether WebAssembly supports using a large"
 "  virtual memory reservation in order to elide bounds checks on this platform."),
 
+    JS_FN_HELP("wasmMaxMemoryPages", WasmMaxMemoryPages, 1, 0,
+"wasmMaxMemoryPages(indexType)",
+"  Returns an int with the maximum number of pages that can be allocated to a memory."
+"  This is an implementation artifact that does depend on the index type, the hardware,"
+"  the operating system, the build configuration, and flags.  The result is constant for"
+"  a given combination of those; there is no guarantee that that size allocation will"
+"  always succeed, only that it can succeed in principle.  The indexType is a string,"
+"  'i32' or 'i64'."),
+
 #define WASM_FEATURE(NAME, ...) \
     JS_FN_HELP("wasm" #NAME "Enabled", Wasm##NAME##Enabled, 0, 0, \
 "wasm" #NAME "Enabled()", \
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/debugger/Source.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/debugger/Source.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/debugger/Source.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/debugger/Source.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -617,7 +617,7 @@
   ScriptSource* ss = sso->source();
 
   JS::CompileOptions options(cx);
-  options.hideScriptFromDebugger = true;
+  options.setHideScriptFromDebugger(true);
   options.setFileAndLine(ss->filename(), ss->startLine());
 
   UncompressedSourceCache::AutoHoldEntry holder;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/analyze.py firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/analyze.py
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/analyze.py	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/analyze.py	2021-10-20 19:28:23.000000000 +0000
@@ -14,23 +14,25 @@
 import os
 import subprocess
 import sys
-import re
 
 try:
     from shlex import quote
 except ImportError:
     from pipes import quote
 
-# Python 2/3 version independence polyfills
 
-anystring_t = str if sys.version_info[0] > 2 else basestring
+def execfile(thefile, globals):
+    exec(compile(open(thefile).read(), filename=thefile, mode="exec"), globals)
 
-try:
-    execfile
-except Exception:
 
-    def execfile(thefile, globals):
-        exec(compile(open(thefile).read(), filename=thefile, mode="exec"), globals)
+# Label a string as an output.
+class Output(str):
+    pass
+
+
+# Label a string as a pattern for multiple inputs.
+class MultiInput(str):
+    pass
 
 
 def env(config):
@@ -45,19 +47,28 @@
 
 
 def fill(command, config):
-    try:
-        return tuple(s % config for s in command)
-    except Exception:
-        print("Substitution failed:")
-        problems = []
-        for fragment in command:
-            try:
-                fragment % config
-            except Exception:
-                problems.append(fragment)
-        raise Exception(
-            "\n".join(["Substitution failed:"] + ["  %s" % s for s in problems])
-        )
+    filled = []
+    for s in command:
+        try:
+            rep = s.format(**config)
+        except KeyError:
+            print("Substitution failed: %s" % s)
+            filled = None
+            break
+
+        if isinstance(s, Output):
+            filled.append(Output(rep))
+        elif isinstance(s, MultiInput):
+            N = int(config["jobs"])
+            for i in range(1, N + 1):
+                filled.append(rep.format(i=i, n=N))
+        else:
+            filled.append(rep)
+
+    if filled is None:
+        raise Exception("substitution failure")
+
+    return tuple(filled)
 
 
 def print_command(command, outfile=None, env=None):
@@ -86,172 +97,214 @@
     print(output)
 
 
-def generate_hazards(config, outfilename):
-    jobs = []
-    for i in range(int(config["jobs"])):
-        command = fill(
-            (
-                "%(js)s",
-                "%(analysis_scriptdir)s/analyzeRoots.js",
-                "%(gcFunctions_list)s",
-                "%(gcEdges)s",
-                "%(limitedFunctions_list)s",
-                "%(gcTypes)s",
-                "%(typeInfo)s",
-                str(i + 1),
-                "%(jobs)s",
-                "tmp.%s" % (i + 1,),
-            ),
-            config,
-        )
-        outfile = "rootingHazards.%s" % (i + 1,)
-        output = open(outfile, "w")
-        if config["verbose"]:
-            print_command(command, outfile=outfile, env=env(config))
-        jobs.append((command, Popen(command, stdout=output, env=env(config))))
-
-    final_status = 0
-    while jobs:
-        pid, status = os.wait()
-        jobs = [job for job in jobs if job[1].pid != pid]
-        final_status = final_status or status
-
-    if final_status:
-        raise subprocess.CalledProcessError(final_status, "analyzeRoots.js")
-
-    with open(outfilename, "w") as output:
-        command = ["cat"] + [
-            "rootingHazards.%s" % (i + 1,) for i in range(int(config["jobs"]))
-        ]
-        if config["verbose"]:
-            print_command(command, outfile=outfilename)
-        subprocess.call(command, stdout=output)
-
-
 JOBS = {
-    "dbs": (
-        (
-            "%(analysis_scriptdir)s/run_complete",
+    "dbs": {
+        "command": [
+            "{analysis_scriptdir}/run_complete",
             "--foreground",
             "--no-logs",
-            "--build-root=%(objdir)s",
-            "--wrap-dir=%(sixgill)s/scripts/wrap_gcc",
+            "--build-root={objdir}",
+            "--wrap-dir={sixgill}/scripts/wrap_gcc",
             "--work-dir=work",
             "-b",
-            "%(sixgill_bin)s",
-            "--buildcommand=%(buildcommand)s",
+            "{sixgill_bin}",
+            "--buildcommand={buildcommand}",
             ".",
-        ),
-        (),
-    ),
-    "list-dbs": (("ls", "-l"), ()),
-    "callgraph": (
-        (
-            "%(js)s",
-            "%(analysis_scriptdir)s/computeCallgraph.js",
-            "%(typeInfo)s",
-            "[callgraph]",
-        ),
-        ("callgraph.txt",),
-    ),
-    "gcFunctions": (
-        (
-            "%(js)s",
-            "%(analysis_scriptdir)s/computeGCFunctions.js",
-            "%(callgraph)s",
-            "[gcFunctions]",
-            "[gcFunctions_list]",
-            "[gcEdges]",
-            "[limitedFunctions_list]",
-        ),
-        ("gcFunctions.txt", "gcFunctions.lst", "gcEdges.txt", "limitedFunctions.lst"),
-    ),
-    "gcTypes": (
-        (
-            "%(js)s",
-            "%(analysis_scriptdir)s/computeGCTypes.js",
-            "[gcTypes]",
-            "[typeInfo]",
-        ),
-        ("gcTypes.txt", "typeInfo.txt"),
-    ),
-    "allFunctions": (
-        (
-            "%(sixgill_bin)s/xdbkeys",
-            "src_body.xdb",
-        ),
-        "allFunctions.txt",
-    ),
-    "hazards": (generate_hazards, "rootingHazards.txt"),
-    "explain": (
-        (
+        ],
+        "outputs": [],
+    },
+    "list-dbs": {"command": ["ls", "-l"]},
+    "rawcalls": {
+        "command": [
+            "{js}",
+            "{analysis_scriptdir}/computeCallgraph.js",
+            "{typeInfo}",
+            Output("rawcalls"),
+            "{i}",
+            "{n}",
+        ],
+        "multi-output": True,
+        "outputs": ["rawcalls.{i}.of.{n}"],
+    },
+    "gcFunctions": {
+        "command": [
+            "{js}",
+            "{analysis_scriptdir}/computeGCFunctions.js",
+            MultiInput("{rawcalls}"),
+            "--outputs",
+            Output("callgraph"),
+            Output("gcFunctions"),
+            Output("gcFunctions_list"),
+            Output("gcEdges"),
+            Output("limitedFunctions_list"),
+        ],
+        "outputs": [
+            "callgraph.txt",
+            "gcFunctions.txt",
+            "gcFunctions.lst",
+            "gcEdges.txt",
+            "limitedFunctions.lst",
+        ],
+    },
+    "gcTypes": {
+        "command": [
+            "{js}",
+            "{analysis_scriptdir}/computeGCTypes.js",
+            Output("gcTypes"),
+            Output("typeInfo"),
+        ],
+        "outputs": ["gcTypes.txt", "typeInfo.txt"],
+    },
+    "allFunctions": {
+        "command": ["{sixgill_bin}/xdbkeys", "src_body.xdb"],
+        "redirect-output": "allFunctions.txt",
+    },
+    "hazards": {
+        "command": [
+            "{js}",
+            "{analysis_scriptdir}/analyzeRoots.js",
+            "{gcFunctions_list}",
+            "{gcEdges}",
+            "{limitedFunctions_list}",
+            "{gcTypes}",
+            "{typeInfo}",
+            "{i}",
+            "{n}",
+            "tmp.{i}.of.{n}",
+        ],
+        "multi-output": True,
+        "redirect-output": "rootingHazards.{i}.of.{n}",
+    },
+    "gather-hazards": {
+        "command": ["cat", MultiInput("{hazards}")],
+        "redirect-output": "rootingHazards.txt",
+    },
+    "explain": {
+        "command": [
             sys.executable,
-            "%(analysis_scriptdir)s/explain.py",
-            "%(hazards)s",
-            "%(gcFunctions)s",
-            "[explained_hazards]",
-            "[unnecessary]",
-            "[refs]",
-        ),
-        ("hazards.txt", "unnecessary.txt", "refs.txt"),
-    ),
-    "heapwrites": (
-        ("%(js)s", "%(analysis_scriptdir)s/analyzeHeapWrites.js"),
-        "heapWriteHazards.txt",
-    ),
+            "{analysis_scriptdir}/explain.py",
+            "{gather-hazards}",
+            "{gcFunctions}",
+            Output("explained_hazards"),
+            Output("unnecessary"),
+            Output("refs"),
+        ],
+        "outputs": ["hazards.txt", "unnecessary.txt", "refs.txt"],
+    },
+    "heapwrites": {
+        "command": ["{js}", "{analysis_scriptdir}/analyzeHeapWrites.js"],
+        "redirect-output": "heapWriteHazards.txt",
+    },
 }
 
 
+# Generator of (i, j, item) tuples:
+#  - i is just the index of the yielded tuple (a la enumerate())
+#  - j is the index of the item in the command list
+#  - item is command[j]
 def out_indexes(command):
-    for i in range(len(command)):
-        m = re.match(r"^\[(.*)\]$", command[i])
-        if m:
-            yield (i, m.group(1))
+    i = 0
+    for (j, fragment) in enumerate(command):
+        if isinstance(fragment, Output):
+            yield (i, j, fragment)
+            i += 1
 
 
 def run_job(name, config):
-    cmdspec, outfiles = JOBS[name]
-    print("Running " + name + " to generate " + str(outfiles))
-    if hasattr(cmdspec, "__call__"):
-        cmdspec(config, outfiles)
-    else:
-        temp_map = {}
-        cmdspec = fill(cmdspec, config)
-        if isinstance(outfiles, anystring_t):
-            stdout_filename = "%s.tmp" % name
-            temp_map[stdout_filename] = outfiles
-            if config["verbose"]:
-                print_command(cmdspec, outfile=outfiles, env=env(config))
-        else:
-            stdout_filename = None
-            pc = list(cmdspec)
-            outfile = 0
-            for (i, name) in out_indexes(cmdspec):
-                pc[i] = outfiles[outfile]
-                outfile += 1
-            if config["verbose"]:
-                print_command(pc, env=env(config))
+    job = JOBS[name]
+    outs = job.get("outputs") or job.get("redirect-output")
+    print("Running " + name + " to generate " + str(outs))
+    if "function" in job:
+        job["function"](config, job["redirect-output"])
+        return
+
+    N = int(config["jobs"]) if job.get("multi-output") else 1
+    config["n"] = N
+    jobs = {}
+    for i in range(1, N + 1):
+        config["i"] = i
+        cmd = fill(job["command"], config)
+        info = spawn_command(cmd, job, name, config)
+        jobs[info["proc"].pid] = info
 
-        command = list(cmdspec)
-        outfile = 0
-        for (i, name) in out_indexes(cmdspec):
-            command[i] = "%s.tmp" % name
-            temp_map[command[i]] = outfiles[outfile]
-            outfile += 1
-
-        sys.stdout.flush()
-        if stdout_filename is None:
-            subprocess.check_call(command, env=env(config))
-        else:
-            with open(stdout_filename, "w") as output:
-                subprocess.check_call(command, stdout=output, env=env(config))
-        for (temp, final) in temp_map.items():
+    final_status = 0
+    while jobs:
+        pid, status = os.wait()
+        final_status = final_status or status
+        info = jobs[pid]
+        del jobs[pid]
+        if "redirect" in info:
+            info["redirect"].close()
+
+        # Rename the temporary files to their final names.
+        for (temp, final) in info["rename_map"].items():
             try:
+                if config["verbose"]:
+                    print("Renaming %s -> %s" % (temp, final))
                 os.rename(temp, final)
             except OSError:
                 print("Error renaming %s -> %s" % (temp, final))
                 raise
 
+    if final_status != 0:
+        raise Exception("job {} returned status {}".format(name, final_status))
+
+
+def spawn_command(cmdspec, job, name, config):
+    rename_map = {}
+
+    if "redirect-output" in job:
+        stdout_filename = "{}.tmp{}".format(name, config.get("i", ""))
+        final_outfile = job["redirect-output"].format(**config)
+        rename_map[stdout_filename] = final_outfile
+        command = cmdspec
+        if config["verbose"]:
+            print_command(cmdspec, outfile=final_outfile, env=env(config))
+    else:
+        outfiles = job["outputs"]
+        outfiles = fill(outfiles, config)
+        stdout_filename = None
+
+        # To print the supposedly-executed command, replace the Outputs in the
+        # command with final output file names. (The actual command will be
+        # using temporary files that get renamed at the end.)
+        if config["verbose"]:
+            pc = list(cmdspec)
+            for (i, j, name) in out_indexes(cmdspec):
+                pc[j] = outfiles[i]
+            print_command(pc, env=env(config))
+
+        # Replace the Outputs with temporary filenames, and record a mapping
+        # from those temp names to their actual final names that will be used
+        # if the command succeeds.
+        command = list(cmdspec)
+        for (i, j, name) in out_indexes(cmdspec):
+            command[j] = "{}.tmp{}".format(name, config.get("i", ""))
+            rename_map[command[j]] = outfiles[i]
+
+    sys.stdout.flush()
+    info = {"rename_map": rename_map}
+    if stdout_filename:
+        info["redirect"] = open(stdout_filename, "w")
+        info["proc"] = Popen(command, stdout=info["redirect"], env=env(config))
+    else:
+        info["proc"] = Popen(command, env=env(config))
+
+    if config["verbose"]:
+        print("Spawned process {}".format(info["proc"].pid))
+
+    return info
+
+
+# Default to conservatively assuming 4GB/job.
+def max_parallel_jobs(job_size=4 * 2 ** 30):
+    """Return the max number of parallel jobs we can run without overfilling
+    memory, assuming heavyweight jobs."""
+    from_cores = int(subprocess.check_output(["nproc", "--ignore=1"]).strip())
+    mem_bytes = os.sysconf("SC_PAGE_SIZE") * os.sysconf("SC_PHYS_PAGES")
+    from_mem = round(mem_bytes / job_size)
+    return min(from_cores, from_mem)
+
 
 config = {"analysis_scriptdir": os.path.dirname(__file__)}
 
@@ -264,7 +317,7 @@
     description="Statically analyze build tree for rooting hazards."
 )
 parser.add_argument(
-    "step", metavar="STEP", type=str, nargs="?", help="run starting from this step"
+    "step", metavar="STEP", type=str, nargs="?", help="run only step STEP"
 )
 parser.add_argument(
     "--source", metavar="SOURCE", type=str, nargs="?", help="source code to analyze"
@@ -284,7 +337,14 @@
     help="full path to ctypes-capable JS shell",
 )
 parser.add_argument(
-    "--upto", metavar="UPTO", type=str, nargs="?", help="last step to execute"
+    "--first",
+    metavar="STEP",
+    type=str,
+    nargs="?",
+    help="execute all jobs starting with STEP",
+)
+parser.add_argument(
+    "--last", metavar="STEP", type=str, nargs="?", help="stop at step STEP"
 )
 parser.add_argument(
     "--jobs",
@@ -350,14 +410,14 @@
 if args.jobs is not None:
     data["jobs"] = args.jobs
 if not data.get("jobs"):
-    data["jobs"] = int(subprocess.check_output(["nproc", "--ignore=1"]).strip())
+    data["jobs"] = max_parallel_jobs()
 
 if args.buildcommand:
     data["buildcommand"] = args.buildcommand
 elif "BUILD" in os.environ:
     data["buildcommand"] = os.environ["BUILD"]
 else:
-    data["buildcommand"] = "make -j4 -s"
+    data["buildcommand"] = "make -j{} -s".format(data["jobs"])
 
 if "ANALYZED_OBJDIR" in os.environ:
     data["objdir"] = os.environ["ANALYZED_OBJDIR"]
@@ -370,45 +430,56 @@
 steps = [
     "dbs",
     "gcTypes",
-    "callgraph",
+    "rawcalls",
     "gcFunctions",
     "allFunctions",
     "hazards",
+    "gather-hazards",
     "explain",
     "heapwrites",
 ]
 
 if args.list:
     for step in steps:
-        command, outfilename = JOBS[step]
-        if outfilename:
-            print("%s -> %s" % (step, outfilename))
+        job = JOBS[step]
+        outfiles = job.get("outputs") or job.get("redirect-output")
+        if outfiles:
+            print(
+                "%s\n    ->%s %s"
+                % (step, "*" if job.get("multi-output") else "", outfiles)
+            )
         else:
             print(step)
     sys.exit(0)
 
 for step in steps:
-    command, outfiles = JOBS[step]
-    if isinstance(outfiles, anystring_t):
-        data[step] = outfiles
-    else:
-        outfile = 0
-        for (i, name) in out_indexes(command):
-            data[name] = outfiles[outfile]
-            outfile += 1
+    job = JOBS[step]
+    if "redirect-output" in job:
+        data[step] = job["redirect-output"]
+    elif "outputs" in job and "command" in job:
+        outfiles = job["outputs"]
+        for (i, j, name) in out_indexes(job["command"]):
+            data[name] = outfiles[i]
+        num_outputs = len(list(out_indexes(job["command"])))
         assert (
-            len(outfiles) == outfile
-        ), "step '%s': mismatched number of output files (%d) and params (%d)" % (
+            len(outfiles) == num_outputs
+        ), 'step "%s": mismatched number of output files (%d) and params (%d)' % (
             step,
-            outfile,
+            num_outputs,
             len(outfiles),
         )  # NOQA: E501
 
 if args.step:
-    steps = steps[steps.index(args.step) :]
-
-if args.upto:
-    steps = steps[: steps.index(args.upto) + 1]
+    if args.first or args.last:
+        raise Exception(
+            "--first and --last cannot be used when a step argument is given"
+        )
+    steps = [args.step]
+else:
+    if args.first:
+        steps = steps[steps.index(args.first) :]
+    if args.last:
+        steps = steps[: steps.index(args.last) + 1]
 
 for step in steps:
     run_job(step, data)
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/analyzeRoots.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/analyzeRoots.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/analyzeRoots.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/analyzeRoots.js	2021-10-20 19:28:22.000000000 +0000
@@ -692,7 +692,7 @@
 
             var src_gcInfo = gcInfo;
             var src_preGCLive = preGCLive;
-            if (!gcInfo && !(body.limits[source] & LIMIT_CANNOT_GC) && !(suppressed & LIMIT_CANNOT_GC)) {
+            if (!gcInfo && !(body.attrs[source] & ATTR_GC_SUPPRESSED) && !(suppressed & ATTR_GC_SUPPRESSED)) {
                 var gcName = edgeCanGC(edge, body);
                 if (gcName)
                     src_gcInfo = {name:gcName, body:body, ppoint:source};
@@ -830,7 +830,7 @@
             continue;
         for (var edge of body.PEdge) {
             if (edgeTakesVariableAddress(edge, variable, body)) {
-                if (edge.Kind == "Assign" || (!(suppressed & LIMIT_CANNOT_GC) && edgeCanGC(edge)))
+                if (edge.Kind == "Assign" || (!(suppressed & ATTR_GC_SUPPRESSED) && edgeCanGC(edge)))
                     return {body:body, ppoint:edge.Index[0]};
             }
         }
@@ -974,12 +974,12 @@
     }
 }
 
-function processBodies(functionName, wholeBodyLimits)
+function processBodies(functionName, wholeBodyAttrs)
 {
     if (!("DefineVariable" in functionBodies[0]))
       return;
-    const funcInfo = limitedFunctions[mangled(functionName)] || {};
-    const suppressed = funcInfo.limits | wholeBodyLimits;
+    const funcInfo = limitedFunctions[mangled(functionName)] || { attributes: 0 };
+    const suppressed = funcInfo.attributes | wholeBodyAttrs;
 
     // Look for the JS_EXPECT_HAZARDS annotation, and output a different
     // message in that case that won't be counted as a hazard.
@@ -1114,10 +1114,8 @@
 var minStream = xdb.min_data_stream()|0;
 var maxStream = xdb.max_data_stream()|0;
 
-var N = (maxStream - minStream) + 1;
-var start = Math.floor((batch - 1) / numBatches * N) + minStream;
-var start_next = Math.floor(batch / numBatches * N) + minStream;
-var end = start_next - 1;
+var start = batchStart(batch, numBatches, minStream, maxStream);
+var end = batchLast(batch, numBatches, minStream, maxStream);
 
 function process(name, json) {
     functionName = name;
@@ -1125,16 +1123,16 @@
 
     // Annotate body with a table of all points within the body that may be in
     // a limited scope (eg within the scope of a GC suppression RAII class.)
-    // body.limits is a plain object indexed by point, with the value being a
-    // bit set stored in an integer of the limit bits.
+    // body.attrs is a plain object indexed by point, with the value being a
+    // bit set stored in an integer.
     for (var body of functionBodies)
-        body.limits = [];
+        body.attrs = [];
 
     for (var body of functionBodies) {
-        for (var [pbody, id, limits] of allRAIIGuardedCallPoints(typeInfo, functionBodies, body, isLimitConstructor))
+        for (var [pbody, id, attrs] of allRAIIGuardedCallPoints(typeInfo, functionBodies, body, isLimitConstructor))
         {
-            if (limits)
-                pbody.limits[id] = limits;
+            if (attrs)
+                pbody.attrs[id] = attrs;
         }
     }
 
@@ -1142,12 +1140,12 @@
     // ref count to zero. Or rather, it just calls operator=() in a context
     // where the refcount will never drop to zero. Limit all calls within the
     // body with LIMIT_CANNOT_GC.
-    let wholeBodyLimits = 0;
+    let wholeBodyAttrs = 0;
     if (functionName.includes("std::swap") || functionName.includes("mozilla::Swap")) {
-        wholeBodyLimits = LIMIT_CANNOT_GC;
+        wholeBodyAttrs = ATTR_GC_SUPPRESSED;
     }
 
-    processBodies(functionName, wholeBodyLimits);
+    processBodies(functionName, wholeBodyAttrs);
 }
 
 if (theFunctionNameToFind) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/annotations.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/annotations.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/annotations.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/annotations.js	2021-10-20 19:28:22.000000000 +0000
@@ -40,8 +40,8 @@
 
     // This is usually a simple variable name, but sometimes a full name gets
     // passed through. And sometimes that name is truncated. Examples:
-    //   _ZL13gAbortHandler|mozalloc_oom.cpp:void (* gAbortHandler)(size_t)
-    //   _ZL14pMutexUnlockFn|umutex.cpp:void (* pMutexUnlockFn)(const void*
+    //   _ZL13gAbortHandler$mozalloc_oom.cpp:void (* gAbortHandler)(size_t)
+    //   _ZL14pMutexUnlockFn$umutex.cpp:void (* pMutexUnlockFn)(const void*
     var name = readable(fullVariable);
 
     if (name in ignoreIndirectCalls)
@@ -296,7 +296,7 @@
     "void mozilla::dom::JSStreamConsumer::~JSStreamConsumer() [[base_dtor]]": true,
 };
 
-function extraGCFunctions() {
+function extraGCFunctions(readableNames) {
     return ["ffi_call"].filter(f => f in readableNames);
 }
 
@@ -323,7 +323,7 @@
            name.match(/u(prv_malloc|prv_realloc|prv_free|case_toFullLower)_\d+/)
 }
 
-function ignoreGCFunction(mangled)
+function ignoreGCFunction(mangled, readableNames)
 {
     // Field calls will not be in readableNames
     if (!(mangled in readableNames))
@@ -408,7 +408,7 @@
     return typeName.startsWith('UniquePtr<');
 }
 
-// If edgeType is a constructor type, return whatever limits it implies for its
+// If edgeType is a constructor type, return whatever bits it implies for its
 // scope (or zero if not matching).
 function isLimitConstructor(typeInfo, edgeType, varName)
 {
@@ -422,9 +422,9 @@
 
     // Check whether the type is a known suppression type.
     var type = edgeType.TypeFunctionCSU.Type.Name;
-    let limit = 0;
+    let attrs = 0;
     if (type in typeInfo.GCSuppressors)
-        limit = limit | LIMIT_CANNOT_GC;
+        attrs = attrs | ATTR_GC_SUPPRESSED;
 
     // And now make sure this is the constructor, not some other method on a
     // suppression type. varName[0] contains the qualified name.
@@ -438,7 +438,7 @@
     if (m[1] != type_stem)
         return 0;
 
-    return limit;
+    return attrs;
 }
 
 // nsISupports subclasses' methods may be scriptable (or overridden
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/callgraph.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/callgraph.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/callgraph.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/callgraph.js	2021-10-20 19:28:23.000000000 +0000
@@ -37,6 +37,13 @@
 
 var virtualResolutionsSeen = new Set();
 
+var ID = {
+    jscode: 1,
+    anyfunc: 2,
+    nogcfunc: 3,
+    gc: 4,
+};
+
 // map is a map from names to sets of entries.
 function addToNamedSet(map, name, entry)
 {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/CFG.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/CFG.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/CFG.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/CFG.js	2021-10-20 19:28:22.000000000 +0000
@@ -11,7 +11,7 @@
 // Find all points (positions within the code) of the body given by the list of
 // bodies and the blockId to match (which will specify an outer function or a
 // loop within it), recursing into loops if needed.
-function findAllPoints(bodies, blockId, limits)
+function findAllPoints(bodies, blockId, bits)
 {
     var points = [];
     var body;
@@ -27,9 +27,9 @@
     if (!("PEdge" in body))
         return;
     for (var edge of body.PEdge) {
-        points.push([body, edge.Index[0], limits]);
+        points.push([body, edge.Index[0], bits]);
         if (edge.Kind == "Loop")
-            points.push(...findAllPoints(bodies, edge.BlockId, limits));
+            points.push(...findAllPoints(bodies, edge.BlockId, bits));
     }
 
     return points;
@@ -87,15 +87,15 @@
             continue;
         var variable = callee.Variable;
         assert(variable.Kind == "Func");
-        const limits = isConstructor(typeInfo, edge.Type, variable.Name);
-        if (!limits)
+        const bits = isConstructor(typeInfo, edge.Type, variable.Name);
+        if (!bits)
             continue;
         if (!("PEdgeCallInstance" in edge))
             continue;
         if (edge.PEdgeCallInstance.Exp.Kind != "Var")
             continue;
 
-        points.push(...pointsInRAIIScope(bodies, body, edge, limits));
+        points.push(...pointsInRAIIScope(bodies, body, edge, bits));
     }
 
     return points;
@@ -153,7 +153,7 @@
     return undefined;
 }
 
-function pointsInRAIIScope(bodies, body, constructorEdge, limits) {
+function pointsInRAIIScope(bodies, body, constructorEdge, bits) {
     var seen = {};
     var worklist = [constructorEdge.Index[1]];
     var points = [];
@@ -162,7 +162,7 @@
         if (point in seen)
             continue;
         seen[point] = true;
-        points.push([body, point, limits]);
+        points.push([body, point, bits]);
         var successors = getSuccessors(body);
         if (!(point in successors))
             continue;
@@ -170,7 +170,7 @@
             if (isMatchingDestructor(constructorEdge, nedge))
                 continue;
             if (nedge.Kind == "Loop")
-                points.push(...findAllPoints(bodies, nedge.BlockId, limits));
+                points.push(...findAllPoints(bodies, nedge.BlockId, bits));
             worklist.push(nedge.Index[1]);
         }
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/computeCallgraph.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/computeCallgraph.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/computeCallgraph.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/computeCallgraph.js	2021-10-20 19:28:23.000000000 +0000
@@ -15,15 +15,14 @@
 }
 
 var typeInfo_filename = scriptArgs[0] || "typeInfo.txt";
-var callgraphOut_filename = scriptArgs[1] || "callgraph.txt";
+var callgraphOut_filename = scriptArgs[1] || "rawcalls.txt";
+var batch = (scriptArgs[2]|0) || 1;
+var numBatches = (scriptArgs[3]|0) || 1;
 
 var origOut = os.file.redirect(callgraphOut_filename);
 
 var memoized = new Map();
 
-var JSNativeCaller = Object.create(null);
-var JSNatives = [];
-
 var unmangled2id = new Set();
 
 // Insert a string into the name table and return the ID. Do not use for
@@ -111,11 +110,11 @@
     if (!('PEdge' in body))
         return;
 
-
     for (var tag of getAnnotations(functionName, body).values()) {
-        print("T " + functionId(functionName) + " " + tag);
+        const id = functionId(functionName);
+        print(`T ${id} ${tag}`);
         if (tag == "Calls JSNatives")
-            JSNativeCaller[functionName] = true;
+            printOnce(`D ${id} ${functionId("(js-code)")}`);
     }
 
     // Set of all callees that have been output so far, in order to suppress
@@ -133,23 +132,23 @@
         if (edge.Kind != "Call")
             continue;
 
-        // The limits (eg LIMIT_CANNOT_GC) are determined by whatever RAII
+        // The attrs (eg ATTR_GC_SUPPRESSED) are determined by whatever RAII
         // scopes might be active, which have been computed previously for all
         // points in the body.
-        var edgeLimited = body.limits[edge.Index[0]] | 0;
+        var edgeAttrs = body.attrs[edge.Index[0]] | 0;
 
         for (var callee of getCallees(edge)) {
-            // Individual callees may have additional limits. The only such
-            // limit currently is that nsISupports.{AddRef,Release} are assumed
+            // Individual callees may have additional attrs. The only such
+            // bit currently is that nsISupports.{AddRef,Release} are assumed
             // to never GC.
-            const limits = edgeLimited | callee.limits;
-            let prologue = limits ? `/${limits} ` : "";
+            const attrs = edgeAttrs | callee.attrs;
+            let prologue = attrs ? `/${attrs} ` : "";
             prologue += functionId(functionName) + " ";
             if (callee.kind == 'direct') {
-                const prev_limits = seen.has(callee.name) ? seen.get(callee.name) : LIMIT_UNVISITED;
-                if (prev_limits & ~limits) {
+                const prev_attrs = seen.has(callee.name) ? seen.get(callee.name) : ATTRS_UNVISITED;
+                if (prev_attrs & ~attrs) {
                     // Only output an edge if it loosens a limit.
-                    seen.set(callee.name, prev_limits & limits);
+                    seen.set(callee.name, prev_attrs & attrs);
                     printOnce("D " + prologue + functionId(callee.name));
                 }
             } else if (callee.kind == 'field') {
@@ -159,9 +158,9 @@
                 printOnce(`${tag} ${prologue}${getId(fullfield)} CLASS ${csu} FIELD ${field}`);
             } else if (callee.kind == 'resolved-field') {
                 // Fully-resolved field (virtual method) call. Record the
-                // callgraph edges. Do not consider limits, since they are
-                // local to this callsite and we are writing out a global
-                // record here.
+                // callgraph edges. Do not consider attrs, since they are local
+                // to this callsite and we are writing out a global record
+                // here.
                 //
                 // Any field call that does *not* have an R entry must be
                 // assumed to call anything.
@@ -184,6 +183,21 @@
     }
 }
 
+// Reserve IDs for special function names.
+
+// represents anything that can run JS
+assert(ID.jscode == functionId("(js-code)"));
+
+// function pointers will get an edge to this in loadCallgraph.js; only the ID
+// reservation is present in callgraph.txt
+assert(ID.anyfunc == functionId("(any-function)"));
+
+// same as above, but for fields annotated to never GC
+assert(ID.nogcfunc == functionId("(nogc-function)"));
+
+// garbage collection
+assert(ID.gc == functionId("(GC)"));
+
 var typeInfo = loadTypeInfo(typeInfo_filename);
 
 loadTypes("src_comp.xdb");
@@ -223,7 +237,7 @@
     for (const {field, dtor} of methods) {
         const caller = getId(fieldKey(csu, field));
         if (isOverridable(csu, field.Name[0]))
-            printOnce(`D ${caller} ${functionId("(unknown-definition)")}`);
+            printOnce(`D ${caller} ${functionId("(js-code)")}`);
         if (dtor)
             printOnce(`D ${caller} ${functionId(dtor)}`);
         if (!subclasses.has(csu))
@@ -254,17 +268,23 @@
 function process(functionName, functionBodies)
 {
     for (var body of functionBodies)
-        body.limits = [];
+        body.attrs = [];
 
     for (var body of functionBodies) {
-        for (var [pbody, id, limits] of allRAIIGuardedCallPoints(typeInfo, functionBodies, body, isLimitConstructor)) {
-            pbody.limits[id] = limits;
+        for (var [pbody, id, attrs] of allRAIIGuardedCallPoints(typeInfo, functionBodies, body, isLimitConstructor)) {
+            pbody.attrs[id] = attrs;
         }
     }
 
     for (var body of functionBodies)
         processBody(functionName, body);
 
+    // Not strictly necessary, but add an edge from the synthetic "(js-code)"
+    // to RunScript to allow better stacks than just randomly selecting a
+    // JSNative to blame things on.
+    if (functionName.includes("js::RunScript"))
+        print(`D ${functionId("(js-code)")} ${functionId(functionName)}`);
+
     // GCC generates multiple constructors and destructors ("in-charge" and
     // "not-in-charge") to handle virtual base classes. They are normally
     // identical, and it appears that GCC does some magic to alias them to the
@@ -367,18 +387,13 @@
     }
 
     if (isJSNative(mangled))
-        JSNatives.push(functionName);
+        printOnce(`D ${functionId("(js-code)")} ${functionId(functionName)}`);
 }
 
-function postprocess_callgraph() {
-    for (const caller of Object.keys(JSNativeCaller)) {
-        const caller_id = functionId(caller);
-        for (const callee of JSNatives)
-            printOnce(`D ${caller_id} ${functionId(callee)}`);
-    }
-}
+var start = batchStart(batch, numBatches, minStream, maxStream);
+var end = batchLast(batch, numBatches, minStream, maxStream);
 
-for (var nameIndex = minStream; nameIndex <= maxStream; nameIndex++) {
+for (var nameIndex = start; nameIndex <= end; nameIndex++) {
     var name = xdb.read_key(nameIndex);
     var data = xdb.read_entry(name);
     process(name.readString(), JSON.parse(data.readString()));
@@ -386,6 +401,4 @@
     xdb.free_string(data);
 }
 
-postprocess_callgraph();
-
 os.file.close(os.file.redirect(origOut));
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/computeGCFunctions.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/computeGCFunctions.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/computeGCFunctions.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/computeGCFunctions.js	2021-10-20 19:28:23.000000000 +0000
@@ -9,32 +9,53 @@
 loadRelativeToScript('annotations.js');
 loadRelativeToScript('loadCallgraph.js');
 
+function usage() {
+  throw "Usage: computeGCFunctions.js <rawcalls1.txt> <rawcalls2.txt>... --outputs <out:callgraph.txt> <out:gcFunctions.txt> <out:gcFunctions.lst> <out:gcEdges.txt> <out:limitedFunctions.lst>";
+}
+
 if (typeof scriptArgs[0] != 'string')
-    throw "Usage: computeGCFunctions.js <callgraph.txt> <out:gcFunctions.txt> <out:gcFunctions.lst> <out:gcEdges.txt> <out:limitedFunctions.lst>";
+  usage();
 
 var start = "Time: " + new Date;
 
-var callgraph_filename = scriptArgs[0];
-var gcFunctions_filename = scriptArgs[1] || "gcFunctions.txt";
-var gcFunctionsList_filename = scriptArgs[2] || "gcFunctions.lst";
-var gcEdges_filename = scriptArgs[3] || "gcEdges.txt";
+var rawcalls_filenames = [];
+while (scriptArgs.length) {
+  const arg = scriptArgs.shift();
+  if (arg == '--outputs')
+    break;
+  rawcalls_filenames.push(arg);
+}
+if (scriptArgs.length == 0)
+  usage();
+
+var callgraph_filename            = scriptArgs[0] || "callgraph.txt";
+var gcFunctions_filename          = scriptArgs[1] || "gcFunctions.txt";
+var gcFunctionsList_filename      = scriptArgs[2] || "gcFunctions.lst";
+var gcEdges_filename              = scriptArgs[3] || "gcEdges.txt";
 var limitedFunctionsList_filename = scriptArgs[4] || "limitedFunctions.lst";
 
-loadCallgraph(callgraph_filename);
+var {
+  gcFunctions,
+  functions,
+  calleesOf,
+  limitedFunctions
+} = loadCallgraph(rawcalls_filenames);
 
 printErr("Writing " + gcFunctions_filename);
 redirect(gcFunctions_filename);
 
 for (var name in gcFunctions) {
-    for (const readable of (readableNames[name] || [name])) {
+    for (let readable of (functions.readableName[name] || [name])) {
         print("");
         const fullname = (name == readable) ? name : name + "$" + readable;
         print("GC Function: " + fullname);
         let current = name;
         do {
             current = gcFunctions[current];
-            if (current in readableNames)
-                print("    " + readableNames[current][0]);
+            if (current === 'internal')
+                ; // Hit the end
+            else if (current in functions.readableName)
+                print("    " + functions.readableName[current][0]);
             else
                 print("    " + current);
         } while (current in gcFunctions);
@@ -44,8 +65,8 @@
 printErr("Writing " + gcFunctionsList_filename);
 redirect(gcFunctionsList_filename);
 for (var name in gcFunctions) {
-    if (name in readableNames) {
-        for (var readable of readableNames[name])
+    if (name in functions.readableName) {
+        for (var readable of functions.readableName[name])
             print(name + "$" + readable);
     } else {
         print(name);
@@ -73,3 +94,7 @@
 printErr("Writing " + limitedFunctionsList_filename);
 redirect(limitedFunctionsList_filename);
 print(JSON.stringify(limitedFunctions, null, 4));
+
+printErr("Writing " + callgraph_filename);
+redirect(callgraph_filename);
+saveCallgraph(functions, calleesOf);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/loadCallgraph.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/loadCallgraph.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/loadCallgraph.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/loadCallgraph.js	2021-10-20 19:28:23.000000000 +0000
@@ -7,6 +7,7 @@
 "use strict";
 
 loadRelativeToScript('utility.js');
+loadRelativeToScript('callgraph.js');
 
 // Functions come out of sixgill in the form "mangled$readable". The mangled
 // name is Truth. One mangled name might correspond to multiple readable names,
@@ -32,26 +33,16 @@
 // consider the mangled name. And some of the names encoded in callgraph.txt
 // are FieldCalls, not just function names.
 
-var readableNames = {}; // map from mangled name => list of readable names
-var calleesOf = {}; // map from mangled => list of tuples of {'callee':mangled, 'limits':intset}
-var callersOf; // map from mangled => list of tuples of {'caller':mangled, 'limits':intset}
-var gcFunctions = {}; // map from mangled callee => reason
-var limitedFunctions = {}; // set of mangled names (map from mangled name => limit intset)
 var gcEdges = {};
 
-// "Map" from identifier to mangled name, or sometimes to a Class.Field name.
-var functionNames = [""];
-
-var mangledToId = {};
-
 // Returns whether the function was added. (It will be refused if it was
-// already there, or if limits or annotations say it shouldn't be added.)
-function addGCFunction(caller, reason, functionLimits)
+// already there, or if attrs or annotations say it shouldn't be added.)
+function addGCFunction(caller, reason, gcFunctions, functionAttrs, functions)
 {
-    if (functionLimits[caller] & LIMIT_CANNOT_GC)
+    if (functionAttrs[caller] && functionAttrs[caller][1] & ATTR_GC_SUPPRESSED)
         return false;
 
-    if (ignoreGCFunction(functionNames[caller]))
+    if (ignoreGCFunction(functions.name[caller], functions.readableName))
         return false;
 
     if (!(caller in gcFunctions)) {
@@ -62,61 +53,83 @@
     return false;
 }
 
-// Every caller->callee callsite is associated with a limit saying what is
+// Every caller->callee callsite is associated with attrs saying what is
 // allowed at that callsite (eg if it's in a GC suppression zone, it would have
-// LIMIT_CANNOT_GC set.) A given caller might call the same callee multiple
-// times, with different limits, so we want to associate the <caller,callee>
-// edge with the intersection ('AND') of all of the callsites' limits.
-//
-// Scan through all call edges and intersect the limits for all matching
-// <caller,callee> edges (so that the result is the least limiting of all
-// matching edges.) Preserve the original order.
+// ATTR_GC_SUPPRESSED set.) A given caller might call the same callee multiple
+// times, with different attributes. Associate the <caller,callee> edge with
+// the intersection (AND) and disjunction (OR) of all of the callsites' attrs.
+// The AND ('all') says what attributes are present for all callers; the OR
+// ('any') says what attributes are present on any caller. Preserve the
+// original order.
 //
 // During the same scan, build callersOf from calleesOf.
-function merge_repeated_calls(calleesOf) {
-    const callersOf = Object.create(null);
+function generate_callgraph(rawCallees) {
+    const callersOf = new Map();
+    const calleesOf = new Map();
 
-    for (const [caller_prop, callee_limits] of Object.entries(calleesOf)) {
-        const caller = caller_prop|0;
+    for (const [caller, callee_attrs] of rawCallees) {
         const ordered_callees = [];
 
-        // callee_limits is a list of {callee,limit} objects.
-        const callee2limit = new Map();
-        for (const {callee, limits} of callee_limits) {
-            const prev_limits = callee2limit.get(callee);
-            if (prev_limits === undefined) {
-                callee2limit.set(callee, limits);
+        // callee_attrs is a list of {callee,any,all} objects.
+        const callee2any = new Map();
+        const callee2all = new Map();
+        for (const {callee, any, all} of callee_attrs) {
+            const prev_any = callee2any.get(callee);
+            if (prev_any === undefined) {
+                assert(!callee2all.has(callee));
+                callee2any.set(callee, any);
+                callee2all.set(callee, all);
                 ordered_callees.push(callee);
             } else {
-                callee2limit.set(callee, prev_limits & limits);
+                const prev_all = callee2all.get(callee);
+                callee2any.set(callee, prev_any | any);
+                callee2all.set(callee, prev_all & all);
             }
         }
 
-        // Update the contents of callee_limits to contain a single entry for
-        // each callee, with its limits set to the AND of the limits observed
-        // at all callsites within this caller function.
-        callee_limits.length = 0;
+        // Update the contents of callee_attrs to contain a single entry for
+        // each callee, with its attrs set to the AND of the attrs observed at
+        // all callsites within this caller function.
+        callee_attrs.length = 0;
         for (const callee of ordered_callees) {
-            const limits = callee2limit.get(callee);
-            callee_limits.push({callee, limits});
-            if (!(callee in callersOf))
-                callersOf[callee] = [];
-            callersOf[callee].push({caller, limits});
+            const any = callee2any.get(callee);
+            const all = callee2all.get(callee);
+            if (!calleesOf.has(caller))
+                calleesOf.set(caller, new Map());
+            calleesOf.get(caller).set(callee, {any, all});
+            if (!callersOf.has(callee))
+                callersOf.set(callee, new Map());
+            callersOf.get(callee).set(caller, {any, all});
         }
     }
 
-    return callersOf;
+    return {callersOf, calleesOf};
 }
 
-function loadCallgraph(file)
+// Returns object mapping mangled => reason for GCing
+function loadRawCallgraphFile(file)
 {
-    const fieldCallLimits = {};
+    const functions = {
+        // "Map" from identifier to mangled name, or sometimes to a Class.Field name.
+        name: [""],
+
+        // map from mangled name => list of readable names
+        readableName: {},
+
+        mangledToId: {}
+    };
+
+    const fieldCallAttrs = {};
     const fieldCallCSU = new Map(); // map from full field name id => csu name
 
-    // set of mangled names (map from mangled name => limit intset)
-    var functionLimits = {};
+    // set of mangled names (map from mangled name => [any,all])
+    var functionAttrs = {};
+
+    const gcCalls = [];
+    const indirectCalls = [];
 
-    let numGCCalls = 0;
+    // map from mangled => list of tuples of {'callee':mangled, 'any':intset, 'all':intset}
+    const rawCallees = new Map();
 
     for (let line of readFileLines_gen(file)) {
         line = line.replace(/\n/, "");
@@ -124,107 +137,219 @@
         let match;
         if (match = line.charAt(0) == "#" && /^\#(\d+) (.*)/.exec(line)) {
             const [ _, id, mangled ] = match;
-            assert(functionNames.length == id);
-            functionNames.push(mangled);
-            mangledToId[mangled] = id;
+            assert(functions.name.length == id);
+            functions.name.push(mangled);
+            functions.mangledToId[mangled] = id|0;
             continue;
         }
         if (match = line.charAt(0) == "=" && /^= (\d+) (.*)/.exec(line)) {
             const [ _, id, readable ] = match;
-            const mangled = functionNames[id];
-            if (mangled in readableNames)
-                readableNames[mangled].push(readable);
+            const mangled = functions.name[id];
+            if (mangled in functions.readableName)
+                functions.readableName[mangled].push(readable);
             else
-                readableNames[mangled] = [ readable ];
+                functions.readableName[mangled] = [ readable ];
             continue;
         }
 
-        let limits = 0;
+        let attrs = 0;
         // Example line: D /17 6 7
         //
         // This means a direct call from 6 -> 7, but within a scope that
-        // applies limits 0x1 and 0x10 to the callee.
+        // applies attrs 0x1 and 0x10 to the callee.
         //
-        // Look for a limit and remove it from the line if found.
+        // Look for a bit specifier and remove it from the line if found.
         if (line.indexOf("/") != -1) {
             match = /^(..)\/(\d+) (.*)/.exec(line);
             line = match[1] + match[3];
-            limits = match[2]|0;
+            attrs = match[2]|0;
         }
         const tag = line.charAt(0);
         if (match = tag == 'I' && /^I (\d+) VARIABLE ([^\,]*)/.exec(line)) {
             const caller = match[1]|0;
             const name = match[2];
-            if (!indirectCallCannotGC(functionNames[caller], name) &&
-                !(limits & LIMIT_CANNOT_GC))
-            {
-                addGCFunction(caller, "IndirectCall: " + name, functionLimits);
-            }
+            if (indirectCallCannotGC(functions.name[caller], name))
+                attrs |= ATTR_GC_SUPPRESSED;
+            indirectCalls.push([caller, "IndirectCall: " + name, attrs]);
         } else if (match = tag == 'F' && /^F (\d+) (\d+) CLASS (.*?) FIELD (.*)/.exec(line)) {
             const caller = match[1]|0;
             const fullfield = match[2]|0;
             const csu = match[3];
             const fullfield_str = csu + "." + match[4];
-            assert(functionNames[fullfield] == fullfield_str);
-            if (limits)
-                fieldCallLimits[fullfield] = limits;
-            addToKeyedList(calleesOf, caller, {callee:fullfield, limits});
+            assert(functions.name[fullfield] == fullfield_str);
+            if (attrs)
+                fieldCallAttrs[fullfield] = attrs;
+            addToMappedList(rawCallees, caller, {callee:fullfield, any:attrs, all:attrs});
             fieldCallCSU.set(fullfield, csu);
+
+            if (fieldCallCannotGC(csu, fullfield_str))
+                addToMappedList(rawCallees, fullfield, {callee:ID.nogcfunc, any:0, all:0});
+            else
+                addToMappedList(rawCallees, fullfield, {callee:ID.anyfunc, any:0, all:0});
         } else if (match = tag == 'V' && /^V (\d+) (\d+) CLASS (.*?) FIELD (.*)/.exec(line)) {
             // V tag is no longer used, but we are still emitting it becasue it
             // can be helpful to understand what's going on.
         } else if (match = tag == 'D' && /^D (\d+) (\d+)/.exec(line)) {
             const caller = match[1]|0;
             const callee = match[2]|0;
-            addToKeyedList(calleesOf, caller, {callee:callee, limits:limits});
+            addToMappedList(rawCallees, caller, {callee, any:attrs, all:attrs});
         } else if (match = tag == 'R' && /^R (\d+) (\d+)/.exec(line)) {
             assert(false, "R tag is no longer used");
         } else if (match = tag == 'T' && /^T (\d+) (.*)/.exec(line)) {
             const id = match[1]|0;
             let tag = match[2];
-            if (tag == 'GC Call') {
-                addGCFunction(id, "GC", functionLimits);
-                numGCCalls++;
-            }
+            if (tag == 'GC Call')
+                gcCalls.push(id);
         } else {
             assert(false, "Invalid format in callgraph line: " + line);
         }
     }
 
-    // Callers have a list of callees, with duplicates (if the same function is
-    // called more than once.) Merge the repeated calls, only keeping limits
-    // that are in force for *every* callsite of that callee. Also, generate
-    // the callersOf table at the same time.
-    callersOf = merge_repeated_calls(calleesOf);
+    printErr("Loaded " + file);
+
+    return {
+        fieldCallAttrs,
+        fieldCallCSU,
+        gcCalls,
+        indirectCalls,
+        rawCallees,
+        functions
+    };
+}
+
+// Take a set of rawcalls filenames (as in, the raw callgraph data output by
+// computeCallgraph.js) and combine them into a global callgraph, renumbering
+// the IDs as needed.
+function mergeRawCallgraphs(filenames) {
+    let d;
+    for (const filename of filenames) {
+        const raw = loadRawCallgraphFile(filename);
+        if (!d) {
+            d = raw;
+            continue;
+        }
+
+        const {
+            fieldCallAttrs,
+            fieldCallCSU,
+            gcCalls,
+            indirectCalls,
+            rawCallees,
+            functions
+        } = raw;
+
+        // Compute the ID mapping. Incoming functions that already have an ID
+        // will be mapped to that ID; new ones will allocate a fresh ID.
+        const remap = new Array(functions.name.length);
+        for (let i = 1; i < functions.name.length; i++) {
+            const mangled = functions.name[i];
+            const old_id = d.functions.mangledToId[mangled]
+            if (old_id) {
+                remap[i] = old_id;
+            } else {
+                const newid = d.functions.name.length;
+                d.functions.mangledToId[mangled] = newid;
+                d.functions.name.push(mangled);
+                remap[i] = newid;
+                assert(!(mangled in d.functions.readableName), mangled + " readable name is already found");
+                const readables = functions.readableName[mangled];
+                if (readables !== undefined)
+                    d.functions.readableName[mangled] = readables;
+            }
+        }
+
+        for (const [fullfield, attrs] of Object.entries(fieldCallAttrs))
+            d.fieldCallAttrs[remap[fullfield]] = attrs;
+        for (const [fullfield, csu] of fieldCallCSU.entries())
+            d.fieldCallCSU.set(remap[fullfield], csu);
+        for (const call of gcCalls)
+            d.gcCalls.push(remap[call]);
+        for (const [caller, name, attrs] of indirectCalls)
+            d.indirectCalls.push([remap[caller], name, attrs]);
+        for (const [caller, callees] of rawCallees) {
+            for (const {callee, any, all} of callees) {
+                addToMappedList(d.rawCallees, remap[caller]|0, {callee:remap[callee], any, all});
+            }
+        }
+    }
+
+    return d;
+}
+
+function loadCallgraph(files)
+{
+    const {
+        fieldCallAttrs,
+        fieldCallCSU,
+        gcCalls,
+        indirectCalls,
+        rawCallees,
+        functions
+    } = mergeRawCallgraphs(files);
+
+    assert(ID.jscode == functions.mangledToId["(js-code)"]);
+    assert(ID.anyfunc == functions.mangledToId["(any-function)"]);
+    assert(ID.nogcfunc == functions.mangledToId["(nogc-function)"]);
+    assert(ID.gc == functions.mangledToId["(GC)"]);
+
+    addToMappedList(rawCallees, functions.mangledToId["(any-function)"], {callee:ID.gc, any:0, all:0});
+
+    // Compute functionAttrs: it should contain the set of functions that
+    // are *always* called within some sort of limited context (eg GC
+    // suppression).
+
+    // set of mangled names (map from mangled name => [any,all])
+    const functionAttrs = {};
+
+    // Initialize to field calls with attrs set.
+    for (var [name, attrs] of Object.entries(fieldCallAttrs))
+        functionAttrs[name] = [attrs, attrs];
+
+    // map from ID => reason
+    const gcFunctions = { [ID.gc]: 'internal' };
 
     // Add in any extra functions at the end. (If we did this early, it would
     // mess up the id <-> name correspondence. Also, we need to know if the
     // functions even exist in the first place.)
-    for (var func of extraGCFunctions()) {
-        addGCFunction(mangledToId[func], "annotation", functionLimits);
+    for (var func of extraGCFunctions(functions.readableName)) {
+        addGCFunction(functions.mangledToId[func], "annotation", gcFunctions, functionAttrs, functions);
     }
-    const unknown = mangledToId['(unknown-definition)'];
-    if (unknown) {
-        addGCFunction(unknown, "internal", functionLimits);
+
+    for (const func of gcCalls)
+        addToMappedList(rawCallees, func, {callee:ID.gc, any:0, all:0});
+
+    for (const [caller, indirect, attrs] of indirectCalls) {
+        const id = functions.name.length;
+        functions.name.push(indirect);
+        functions.mangledToId[indirect] = id;
+        addToMappedList(rawCallees, caller, {callee:id, any:attrs, all:attrs});
+        addToMappedList(rawCallees, id, {callee:ID.anyfunc, any:0, all:0});
     }
 
-    // Compute functionLimits: it should contain the set of functions that
+    // Callers have a list of callees, with duplicates (if the same function is
+    // called more than once.) Merge the repeated calls, only keeping attrs
+    // that are in force for *every* callsite of that callee. Also, generate
+    // the callersOf table at the same time.
+    //
+    // calleesOf : map from mangled => {mangled callee => {'any':intset, 'all':intset}}
+    // callersOf : map from mangled => {mangled caller => {'any':intset, 'all':intset}}
+    const {callersOf, calleesOf} = generate_callgraph(rawCallees);
+
+    // Compute functionAttrs: it should contain the set of functions that
     // are *always* called within some sort of limited context (eg GC
     // suppression).
 
-    // Initialize to limited field calls.
-    for (var [name, limits] of Object.entries(fieldCallLimits)) {
-        if (limits)
-            functionLimits[name] = limits;
-    }
+    // Initialize to field calls with attrs set.
+    for (var [name, attrs] of Object.entries(fieldCallAttrs))
+        functionAttrs[name] = [attrs, attrs];
 
-    // Initialize functionLimits to the set of all functions, where each one is
-    // maximally limited, and return a worklist containing all simple roots
+    // Initialize functionAttrs to the set of all functions, where each one is
+    // maximally attributed, and return a worklist containing all simple roots
     // (nodes with no callers).
-    var roots = gather_simple_roots(functionLimits, callersOf);
+    const simple_roots = gather_simple_roots(functionAttrs, calleesOf, callersOf);
 
-    // Traverse the graph, spreading the limits down from the roots.
-    propagate_limits(roots, functionLimits, calleesOf);
+    // Traverse the graph, spreading the attrs down from the roots.
+    propagate_attrs(simple_roots, functionAttrs, calleesOf);
 
     // There are a surprising number of "recursive roots", where there is a
     // cycle of functions calling each other but not called by anything else,
@@ -232,34 +357,41 @@
     // has eliminated everything reachable from simple roots, traverse the
     // remaining graph to gather up a representative function from each root
     // cycle.
-    const recursive_roots = gather_recursive_roots(functionLimits, calleesOf, callersOf);
+    //
+    // Simple example: in the JS shell build, moz_xstrdup calls itself, but
+    // there are no calls to it from within js/src.
+    const recursive_roots = gather_recursive_roots(functionAttrs, calleesOf, callersOf, functions);
 
     // And do a final traversal starting with the recursive roots.
-    propagate_limits(recursive_roots, functionLimits, calleesOf);
+    propagate_attrs(recursive_roots, functionAttrs, calleesOf);
+
+    for (const [f, [any, all]] of Object.entries(functionAttrs)) {
+        // Throw out all functions with no attrs set, to reduce the size of the
+        // output. From now on, "not in functionAttrs" means [any=0, all=0].
+        if (any == 0 && all == 0)
+            delete functionAttrs[f];
 
-    // Eliminate GC-limited functions from the set of functions known to GC.
-    for (var name in gcFunctions) {
-        if (functionLimits[name] & LIMIT_CANNOT_GC)
+        // Remove GC-suppressed functions from the set of functions known to GC.
+        if (all & ATTR_GC_SUPPRESSED)
             delete gcFunctions[name];
     }
 
-    // functionLimits should now contain all functions that are always called
-    // in a limited context.
+    // functionAttrs now contains all functions that are ever called in an
+    // attributed context, based on the known callgraph (i.e., calls through
+    // function pointers are not taken into consideration.)
 
     // Sanity check to make sure the callgraph has some functions annotated as
     // GC Calls. This is mostly a check to be sure the earlier processing
     // succeeded (as opposed to, say, running on empty xdb files because you
     // didn't actually compile anything interesting.)
-    assert(numGCCalls > 0, "No GC functions found!");
+    assert(gcCalls.length > 0, "No GC functions found!");
 
     // Initialize the worklist to all known gcFunctions.
-    var worklist = [];
-    for (const name in gcFunctions)
-        worklist.push(name);
+    const worklist = [ID.gc];
 
-    // Add all field calls (but not virtual method calls) to gcFunctions.
+    // Include all field calls (but not virtual method calls).
     for (const [name, csuName] of fieldCallCSU) {
-        const fullFieldName = functionNames[name];
+        const fullFieldName = functions.name[name];
         if (!fieldCallCannotGC(csuName, fullFieldName)) {
             gcFunctions[name] = 'arbitrary function pointer ' + fullFieldName;
             worklist.push(name);
@@ -271,80 +403,117 @@
     while (worklist.length) {
         name = worklist.shift();
         assert(name in gcFunctions, "gcFunctions does not contain " + name);
-        if (!(name in callersOf))
+        if (!callersOf.has(name))
             continue;
-        for (const {caller, limits} of callersOf[name]) {
-            if (!(limits & LIMIT_CANNOT_GC)) {
-                if (addGCFunction(caller, name, functionLimits))
+        for (const [caller, {any, all}] of callersOf.get(name)) {
+            if (!(all & ATTR_GC_SUPPRESSED)) {
+                if (addGCFunction(caller, name, gcFunctions, functionAttrs, functions))
                     worklist.push(caller);
             }
         }
     }
 
-    // Convert functionLimits to limitedFunctions (using mangled names instead
+    // Convert functionAttrs to limitedFunctions (using mangled names instead
     // of ids.)
 
-    for (const [id, limits] of Object.entries(functionLimits))
-        limitedFunctions[functionNames[id]] = { limits };
+    // set of mangled names (map from mangled name => {any,all,recursive_root:bool}
+    var limitedFunctions = {};
+
+    for (const [id, [any, all]] of Object.entries(functionAttrs))
+        limitedFunctions[functions.name[id]] = { attributes: all };
 
     for (const [id, limits, label] of recursive_roots) {
-        const name = functionNames[id];
+        const name = functions.name[id];
         const s = limitedFunctions[name] || (limitedFunctions[name] = {});
         s.recursive_root = true;
     }
 
-    // The above code uses integer ids for efficiency. External code uses
-    // mangled names. Rewrite the various data structures to convert ids to
-    // mangled names.
-    remap_ids_to_mangled_names();
+    // Remap ids to mangled names.
+    const namedGCFunctions = {};
+    for (const [caller, reason] of Object.entries(gcFunctions)) {
+        namedGCFunctions[functions.name[caller]] = functions.name[reason] || reason;
+    }
+
+    return {
+        gcFunctions: namedGCFunctions,
+        functions,
+        calleesOf,
+        callersOf,
+        limitedFunctions
+    };
+}
+
+function saveCallgraph(functions, calleesOf) {
+    // Write out all the ids and their readable names.
+    let id = -1;
+    for (const name of functions.name) {
+        id += 1;
+        if (id == 0) continue;
+        print(`#${id} ${name}`);
+        for (const readable of (functions.readableName[name] || [])) {
+            if (readable != name)
+                print(`= ${id} ${readable}`);
+        }
+    }
+
+    // Omit field calls for now; let them appear as if they were functions.
+
+    const attrstring = range => range.any || range.all ? `${range.all}:${range.any} ` : '';
+    for (const [caller, callees] of calleesOf) {
+        for (const [callee, attrs] of callees) {
+            print(`D ${attrstring(attrs)}${caller} ${callee}`);
+        }
+    }
+
+    // Omit tags for now. This really should preserve all tags. The "GC Call"
+    // tag will already be represented in the graph by having an edge to the
+    // "(GC)" node.
 }
 
 // Return a worklist of functions with no callers, and also initialize
-// functionLimits to the set of all functions, each mapped to LIMIT_UNVISTED.
-function gather_simple_roots(functionLimits, callersOf) {
+// functionAttrs to the set of all functions, each mapped to
+// [ATTRS_NONE, ATTRS_UNVISITED].
+function gather_simple_roots(functionAttrs, calleesOf, callersOf) {
     const roots = [];
-    for (let callee in callersOf)
-        functionLimits[callee] = LIMIT_UNVISITED;
-    for (let caller in calleesOf) {
-        if (!(caller in callersOf)) {
-            functionLimits[caller] = LIMIT_UNVISITED;
-            roots.push([caller, LIMIT_NONE, 'root']);
-        }
+    for (const callee of callersOf.keys())
+        functionAttrs[callee] = [ATTRS_NONE, ATTRS_UNVISITED];
+    for (const caller of calleesOf.keys()) {
+        functionAttrs[caller] = [ATTRS_NONE, ATTRS_UNVISITED];
+        if (!callersOf.has(caller))
+            roots.push([caller, ATTRS_NONE, 'root']);
     }
 
     return roots;
 }
 
 // Recursively traverse the callgraph from the roots. Recurse through every
-// edge that weakens the limits. (Limits that entirely disappear, aka go to a
-// zero intset, will be removed from functionLimits.)
-function propagate_limits(roots, functionLimits, calleesOf) {
+// edge that weakens the attrs. (Attrs that entirely disappear, ie go to a zero
+// intset, will be removed from functionAttrs.)
+function propagate_attrs(roots, functionAttrs, calleesOf) {
     const worklist = Array.from(roots);
     let top = worklist.length;
     while (top > 0) {
         // Consider caller where (graph) -> caller -> (0 or more callees)
         // 'callercaller' is for debugging.
-        const [caller, edge_limits, callercaller] = worklist[--top];
-        const prev_limits = functionLimits[caller];
-        if (prev_limits & ~edge_limits) {
-            // Turning off a limit (or unvisited marker). Must recurse to the
-            // children. But first, update this caller's limits: we just found
-            // out it is reachable by an unlimited path, so it must be treated
-            // as unlimited (with respect to that bit).
-            const new_limits = prev_limits & edge_limits;
-            if (new_limits)
-                functionLimits[caller] = new_limits;
-            else
-                delete functionLimits[caller];
-            for (const {callee, limits} of (calleesOf[caller] || []))
-                worklist[top++] = [callee, limits | edge_limits, caller];
+        const [caller, edge_attrs, callercaller] = worklist[--top];
+        assert(caller in functionAttrs);
+        const [prev_any, prev_all] = functionAttrs[caller];
+        assert(prev_any !== undefined);
+        assert(prev_all !== undefined);
+        const [new_any, new_all] = [prev_any | edge_attrs, prev_all & edge_attrs];
+        if (prev_any != new_any || prev_all != new_all) {
+            // Update function attrs, then recurse to the children if anything
+            // was updated.
+            functionAttrs[caller] = [new_any, new_all];
+            for (const [callee, {any, all}] of (calleesOf.get(caller) || new Map))
+                worklist[top++] = [callee, all | edge_attrs, caller];
         }
     }
 }
 
 // Mutually-recursive roots and their descendants will not have been visited,
-// and will still be set to LIMIT_UNVISITED. Scan through and gather them.
-function gather_recursive_roots(functionLimits, calleesOf, callersOf) {
+// and will still be set to [0, ATTRS_UNVISITED]. Scan through and gather them.
+function gather_recursive_roots(functionAttrs, calleesOf, callersOf, functions) {
     const roots = [];
 
     // Pick any node. Mark everything reachable by adding to a 'seen' set. At
@@ -356,14 +525,15 @@
     //
     // Repeat with remaining unmarked nodes until all nodes are marked.
     const seen = new Set();
-    for (let func in functionLimits) {
+    for (let [func, [any, all]] of Object.entries(functionAttrs)) {
         func = func|0;
-        if (functionLimits[func] != LIMIT_UNVISITED)
+        if (all != ATTRS_UNVISITED)
             continue;
 
         // We should only be looking at nodes with callers, since otherwise
         // they would have been handled in the previous pass!
-        assert(callersOf[func].length > 0);
+        assert(callersOf.has(func));
+        assert(callersOf.get(func).size > 0);
 
         if (seen.has(func))
             continue;
@@ -371,10 +541,11 @@
         const work = [func];
         while (work.length > 0) {
             const f = work.pop();
-            for (const callee of (calleesOf[f] || []).map(o => o.callee)) {
+            if (!calleesOf.has(f)) continue;
+            for (const callee of calleesOf.get(f).keys()) {
                 if (!seen.has(callee) &&
                     callee != func &&
-                    functionLimits[callee] == LIMIT_UNVISITED)
+                    functionAttrs[callee][1] == ATTRS_UNVISITED)
                 {
                     work.push(callee);
                     seen.add(callee);
@@ -384,19 +555,29 @@
 
         assert(!seen.has(func));
         seen.add(func);
-        if (callersOf[func].findIndex(o => !seen.has(o.caller)) == -1) {
+        if ([...callersOf.get(func).keys()].findIndex(f => !seen.has(f)) == -1) {
             // No unmarked incoming edges, including self-edges, so this is a
             // (recursive) root.
-            roots.push([func, LIMIT_NONE, 'recursive-root']);
+            roots.push([func, ATTRS_NONE, 'recursive-root']);
         }
     }
 
     return roots;
-}
 
-function remap_ids_to_mangled_names() {
-    var tmp = gcFunctions;
-    gcFunctions = {};
-    for (const [caller, reason] of Object.entries(tmp))
-        gcFunctions[functionNames[caller]] = functionNames[reason] || reason;
+    tmp = calleesOf;
+    calleesOf = {};
+    for (const [callerId, callees] of Object.entries(calleesOf)) {
+        const caller = functionNames[callerId];
+        for (const {calleeId, limits} of callees)
+            calleesOf[caller][functionNames[calleeId]] = limits;
+    }
+
+    tmp = callersOf;
+    callersOf = {};
+    for (const [calleeId, callers] of Object.entries(callersOf)) {
+        const callee = functionNames[calleeId];
+        callersOf[callee] = {};
+        for (const {callerId, limits} of callers)
+            callersOf[callee][functionNames[caller]] = limits;
+    }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/mach_commands.py firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/mach_commands.py
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/mach_commands.py	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/mach_commands.py	2021-10-20 19:28:22.000000000 +0000
@@ -267,8 +267,6 @@
         sys.executable,
         os.path.join(script_dir(command_context), "analyze.py"),
         "dbs",
-        "--upto",
-        "dbs",
         "-v",
         "--buildcommand=" + buildscript,
     ]
@@ -378,6 +376,7 @@
         args += extra
     else:
         args += [
+            "--first",
             "gcTypes",
             "-v",
         ]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/t/graph/test.py firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/t/graph/test.py
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/t/graph/test.py	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/t/graph/test.py	2021-10-20 19:28:22.000000000 +0000
@@ -51,4 +51,4 @@
 )
 assert len(set([node[1], node[2]]) & rroots) == 1
 assert len(set([node[4], node[5]]) & rroots) == 1
-assert len(rroots) == 4  # n1, n4, f, self_recursive
+assert len(rroots) == 4, "rroots = {}".format(rroots)  # n1, n4, f, self_recursive
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/t/testlib.py firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/t/testlib.py
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/t/testlib.py	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/t/testlib.py	2021-10-20 19:28:22.000000000 +0000
@@ -85,7 +85,7 @@
         )
         return json.loads(output)
 
-    def run_analysis_script(self, phase, upto=None):
+    def run_analysis_script(self, startPhase, upto=None):
         open("defaults.py", "w").write(
             """\
 analysis_scriptdir = '{scriptdir}'
@@ -98,10 +98,10 @@
             sys.executable,
             os.path.join(scriptdir, "analyze.py"),
             "-v" if self.verbose else "-q",
-            phase,
         ]
+        cmd += ["--first", startPhase]
         if upto:
-            cmd += ["--upto", upto]
+            cmd += ["--last", upto]
         cmd.append("--source=%s" % self.indir)
         cmd.append("--objdir=%s" % self.outdir)
         cmd.append("--js=%s" % self.cfg.js)
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/utility.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/utility.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/devtools/rootAnalysis/utility.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/devtools/rootAnalysis/utility.js	2021-10-20 19:28:23.000000000 +0000
@@ -8,19 +8,22 @@
 
 loadRelativeToScript('dumpCFG.js');
 
-// Limit inset bits - each call edge may carry a set of 'limit' bits, saying eg
+// Attribute bits - each call edge may carry a set of 'attrs' bits, saying eg
 // that the edge takes place within a scope where GC is suppressed, for
 // example.
-var LIMIT_NONE = 0;
-var LIMIT_CANNOT_GC = 1;
-var LIMIT_ALL = 1;
+var ATTR_GC_SUPPRESSED     = 1;
+var ATTR_CANSCRIPT_BOUNDED = 2; // Unimplemented
+var ATTR_DOM_ITERATING     = 4; // Unimplemented
+
+var ATTRS_NONE             = 0;
+var ATTRS_ALL              = 7; // All possible bits set
 
 // The traversal algorithms we run will recurse into children if you change any
-// limit bit to zero. Use all bits set to maximally limited, including
+// attrs bit to zero. Use all bits set to maximally attributed, including
 // additional bits that all just mean "unvisited", so that the first time we
-// see a node with this limit, we're guaranteed to turn at least one bit off
+// see a node with this attrs, we're guaranteed to turn at least one bit off
 // and thereby keep going.
-var LIMIT_UNVISITED = 0xffff;
+var ATTRS_UNVISITED = 0xffff;
 
 // gcc appends this to mangled function names for "not in charge"
 // constructors/destructors.
@@ -286,7 +289,56 @@
     return collection[key];
 }
 
+function addToMappedList(map, key, entry)
+{
+    if (!map.has(key))
+        map.set(key, []);
+    map.get(key).push(entry);
+    return map.get(key);
+}
+
 function loadTypeInfo(filename)
 {
     return JSON.parse(os.file.readFile(filename));
 }
+
+// Given the range `first` .. `last`, break it down into `count` batches and
+// return the start of the (1-based) `num` batch.
+function batchStart(num, count, first, last) {
+  const N = (last - first) + 1;
+  return Math.floor((num - 1) / count * N) + first;
+}
+
+// As above, but return the last value in the (1-based) `num` batch.
+function batchLast(num, count, first, last) {
+  const N = (last - first) + 1;
+  return Math.floor(num / count * N) + first - 1;
+}
+
+// Debugging tool. See usage below.
+function PropertyTracer(traced_prop, check) {
+    return {
+        matches(prop, value) {
+            if (prop != traced_prop)
+                return false;
+            if ('value' in check)
+                return value == check.value;
+            return true;
+        },
+
+        // Also called when defining a property.
+        set(obj, prop, value) {
+            if (this.matches(prop, value))
+                debugger;
+            return Reflect.set(...arguments);
+        },
+    };
+}
+
+// Usage: var myobj = traced({}, 'name', {value: 'Bob'})
+//
+// This will execute a `debugger;` statement when myobj['name'] is defined or
+// set to 'Bob'.
+function traced(obj, traced_prop, check) {
+  return new Proxy(obj, PropertyTracer(traced_prop, check));
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/frontend/BytecodeCompilation.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/frontend/BytecodeCompilation.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/frontend/BytecodeCompilation.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/frontend/BytecodeCompilation.h	2021-10-20 19:28:23.000000000 +0000
@@ -9,11 +9,12 @@
 
 #include "mozilla/Utf8.h"  // mozilla::Utf8Unit
 
-#include "js/CompileOptions.h"  // JS::ReadOnlyCompileOptions
-#include "js/SourceText.h"      // JS::SourceText
-#include "js/TypeDecls.h"       // JS::Handle (fwd)
-#include "js/UniquePtr.h"       // js::UniquePtr
-#include "vm/ScopeKind.h"       // js::ScopeKind
+#include "js/CompileOptions.h"  // JS::ReadOnlyCompileOptions, JS::InstantiateOptions
+#include "js/GCVector.h"        // JS::GCVector
+#include "js/SourceText.h"  // JS::SourceText
+#include "js/TypeDecls.h"   // JS::Handle (fwd)
+#include "js/UniquePtr.h"   // js::UniquePtr
+#include "vm/ScopeKind.h"   // js::ScopeKind
 
 namespace js {
 
@@ -83,6 +84,12 @@
          !options.forceFullParse();
 }
 
+void FireOnNewScript(JSContext* cx, const JS::InstantiateOptions& options,
+                     JS::Handle<JSScript*> script);
+
+void FireOnNewScripts(JSContext* cx, const JS::InstantiateOptions& options,
+                      JS::Handle<JS::GCVector<JSScript*>> scripts);
+
 }  // namespace frontend
 
 }  // namespace js
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/frontend/BytecodeCompiler.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/frontend/BytecodeCompiler.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/frontend/BytecodeCompiler.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/frontend/BytecodeCompiler.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -396,9 +396,8 @@
     }
 
     Rooted<JSScript*> script(cx, gcOutput.script);
-    if (!input.options.hideFromNewScriptInitial()) {
-      DebugAPI::onNewScript(cx, script);
-    }
+    const JS::InstantiateOptions instantiateOptions(input.options);
+    FireOnNewScript(cx, instantiateOptions, script);
   }
 
   return true;
@@ -410,7 +409,7 @@
   AutoGeckoProfilerEntry pseudoFrame(cx, "stencil instantiate",
                                      JS::ProfilingCategoryPair::JS_Parsing);
 
-  return CompilationStencil::prepareForInstantiate(cx, input, stencil,
+  return CompilationStencil::prepareForInstantiate(cx, input.atomCache, stencil,
                                                    gcOutput);
 }
 
@@ -1220,10 +1219,9 @@
 
     MOZ_ASSERT(!cx->isHelperThreadContext());
 
+    const JS::InstantiateOptions instantiateOptions(options);
     Rooted<JSScript*> script(cx, gcOutput.get().script);
-    if (!options.hideFromNewScriptInitial()) {
-      DebugAPI::onNewScript(cx, script);
-    }
+    FireOnNewScript(cx, instantiateOptions, script);
   }
 
   assertException.reset();
@@ -1277,3 +1275,25 @@
                                    FunctionAsyncKind::SyncFunction,
                                    enclosingScope);
 }
+
+void frontend::FireOnNewScript(JSContext* cx,
+                               const JS::InstantiateOptions& options,
+                               JS::Handle<JSScript*> script) {
+  if (!options.hideFromNewScriptInitial()) {
+    DebugAPI::onNewScript(cx, script);
+  }
+}
+
+void frontend::FireOnNewScripts(JSContext* cx,
+                                const JS::InstantiateOptions& options,
+                                JS::Handle<JS::GCVector<JSScript*>> scripts) {
+  if (!options.hideFromNewScriptInitial()) {
+    JS::Rooted<JSScript*> rootedScript(cx);
+    for (auto& script : scripts) {
+      MOZ_ASSERT(script->isGlobalCode());
+
+      rootedScript = script;
+      DebugAPI::onNewScript(cx, rootedScript);
+    }
+  }
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/frontend/CompilationStencil.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/frontend/CompilationStencil.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/frontend/CompilationStencil.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/frontend/CompilationStencil.h	2021-10-20 19:28:23.000000000 +0000
@@ -26,6 +26,7 @@
 #include "frontend/Stencil.h"
 #include "frontend/TaggedParserAtomIndexHasher.h"  // TaggedParserAtomIndexHasher
 #include "frontend/UsedNameTracker.h"
+#include "js/CompileOptions.h"  // JS::ReadOnlyCompileOptions
 #include "js/GCVector.h"
 #include "js/HashTable.h"
 #include "js/RealmOptions.h"
@@ -748,8 +749,8 @@
       CompilationGCOutput& gcOutput);
 
   [[nodiscard]] static bool prepareForInstantiate(
-      JSContext* cx, CompilationInput& input, const CompilationStencil& stencil,
-      CompilationGCOutput& gcOutput);
+      JSContext* cx, CompilationAtomCache& atomCache,
+      const CompilationStencil& stencil, CompilationGCOutput& gcOutput);
 
   [[nodiscard]] static bool instantiateStencils(
       JSContext* cx, CompilationInput& input, const CompilationStencil& stencil,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/frontend/Stencil.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/frontend/Stencil.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/frontend/Stencil.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/frontend/Stencil.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -1107,7 +1107,7 @@
 }
 
 static bool InstantiateScriptSourceObject(JSContext* cx,
-                                          CompilationInput& input,
+                                          const JS::InstantiateOptions& options,
                                           const CompilationStencil& stencil,
                                           CompilationGCOutput& gcOutput) {
   MOZ_ASSERT(stencil.source);
@@ -1128,7 +1128,7 @@
   // until after we've merged compartments.
   if (!cx->isHelperThreadContext()) {
     Rooted<ScriptSourceObject*> sourceObject(cx, gcOutput.sourceObject);
-    if (!ScriptSourceObject::initFromOptions(cx, sourceObject, input.options)) {
+    if (!ScriptSourceObject::initFromOptions(cx, sourceObject, options)) {
       return false;
     }
   }
@@ -1537,7 +1537,7 @@
                                              CompilationInput& input,
                                              const CompilationStencil& stencil,
                                              CompilationGCOutput& gcOutput) {
-  if (!prepareForInstantiate(cx, input, stencil, gcOutput)) {
+  if (!prepareForInstantiate(cx, input.atomCache, stencil, gcOutput)) {
     return false;
   }
 
@@ -1553,14 +1553,17 @@
   bool isInitialParse = stencil.isInitialStencil();
   MOZ_ASSERT(stencil.isInitialStencil() == input.isInitialStencil());
 
+  CompilationAtomCache& atomCache = input.atomCache;
+  const JS::InstantiateOptions options(input.options);
+
   // Phase 1: Instantiate JSAtom/JSStrings.
-  if (!InstantiateAtoms(cx, input.atomCache, stencil)) {
+  if (!InstantiateAtoms(cx, atomCache, stencil)) {
     return false;
   }
 
   // Phase 2: Instantiate ScriptSourceObject, ModuleObject, JSFunctions.
   if (isInitialParse) {
-    if (!InstantiateScriptSourceObject(cx, input, stencil, gcOutput)) {
+    if (!InstantiateScriptSourceObject(cx, options, stencil, gcOutput)) {
       return false;
     }
 
@@ -1572,12 +1575,12 @@
       MOZ_ASSERT(input.enclosingScope->environmentChainLength() ==
                  ModuleScope::EnclosingEnvironmentChainLength);
 
-      if (!InstantiateModuleObject(cx, input.atomCache, stencil, gcOutput)) {
+      if (!InstantiateModuleObject(cx, atomCache, stencil, gcOutput)) {
         return false;
       }
     }
 
-    if (!InstantiateFunctions(cx, input.atomCache, stencil, gcOutput)) {
+    if (!InstantiateFunctions(cx, atomCache, stencil, gcOutput)) {
       return false;
     }
   } else {
@@ -1605,7 +1608,7 @@
 
   // Phase 4: Instantiate (inner) BaseScripts.
   if (isInitialParse) {
-    if (!InstantiateScriptStencils(cx, input.atomCache, stencil, gcOutput)) {
+    if (!InstantiateScriptStencils(cx, atomCache, stencil, gcOutput)) {
       return false;
     }
   }
@@ -1619,7 +1622,7 @@
 
   // Phase 6: Update lazy scripts.
   if (stencil.canLazilyParse) {
-    UpdateEmittedInnerFunctions(cx, input.atomCache, stencil, gcOutput);
+    UpdateEmittedInnerFunctions(cx, atomCache, stencil, gcOutput);
 
     if (isInitialParse) {
       LinkEnclosingLazyScript(stencil, gcOutput);
@@ -1825,15 +1828,15 @@
 
 /* static */
 bool CompilationStencil::prepareForInstantiate(
-    JSContext* cx, CompilationInput& input, const CompilationStencil& stencil,
-    CompilationGCOutput& gcOutput) {
+    JSContext* cx, CompilationAtomCache& atomCache,
+    const CompilationStencil& stencil, CompilationGCOutput& gcOutput) {
   // Reserve the `gcOutput` vectors.
   if (!gcOutput.ensureReserved(cx, stencil.scriptData.size(),
                                stencil.scopeData.size())) {
     return false;
   }
 
-  return input.atomCache.allocate(cx, stencil.parserAtomData.size());
+  return atomCache.allocate(cx, stencil.parserAtomData.size());
 }
 
 bool CompilationStencil::serializeStencils(JSContext* cx,
@@ -4050,16 +4053,12 @@
   return CompileModuleScriptToStencilImpl(cx, options, srcBuf);
 }
 
-JSScript* JS::InstantiateGlobalStencil(
-    JSContext* cx, const JS::ReadOnlyCompileOptions& options,
-    JS::Stencil* stencil) {
-  if (stencil->canLazilyParse != CanLazilyParse(options)) {
-    JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
-                              JSMSG_STENCIL_OPTIONS_MISMATCH);
-    return nullptr;
-  }
-
-  Rooted<CompilationInput> input(cx, CompilationInput(options));
+JSScript* JS::InstantiateGlobalStencil(JSContext* cx,
+                                       const JS::InstantiateOptions& options,
+                                       JS::Stencil* stencil) {
+  CompileOptions compileOptions(cx);
+  options.copyTo(compileOptions);
+  Rooted<CompilationInput> input(cx, CompilationInput(compileOptions));
   Rooted<CompilationGCOutput> gcOutput(cx);
   if (!InstantiateStencils(cx, input.get(), *stencil, gcOutput.get())) {
     return nullptr;
@@ -4076,19 +4075,14 @@
   return stencil->canLazilyParse;
 }
 
-JSObject* JS::InstantiateModuleStencil(
-    JSContext* cx, const JS::ReadOnlyCompileOptions& optionsInput,
-    JS::Stencil* stencil) {
-  JS::CompileOptions options(cx, optionsInput);
-  options.setModule();
+JSObject* JS::InstantiateModuleStencil(JSContext* cx,
+                                       const JS::InstantiateOptions& options,
+                                       JS::Stencil* stencil) {
+  CompileOptions compileOptions(cx);
+  options.copyTo(compileOptions);
+  compileOptions.setModule();
 
-  if (stencil->canLazilyParse != CanLazilyParse(options)) {
-    JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
-                              JSMSG_STENCIL_OPTIONS_MISMATCH);
-    return nullptr;
-  }
-
-  Rooted<CompilationInput> input(cx, CompilationInput(options));
+  Rooted<CompilationInput> input(cx, CompilationInput(compileOptions));
   Rooted<CompilationGCOutput> gcOutput(cx);
   if (!InstantiateStencils(cx, input.get(), *stencil, gcOutput.get())) {
     return nullptr;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Compacting.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Compacting.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Compacting.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Compacting.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -459,11 +459,10 @@
   traceWeakFinalizationRegistryEdges(trc, zone);
   zone->weakRefMap().sweep(&storeBuffer());
 
-  {
-    zone->sweepWeakMaps();
-    for (auto* cache : zone->weakCaches()) {
-      cache->sweep(nullptr);
-    }
+  zone->traceWeakMaps(trc);
+
+  for (auto* cache : zone->weakCaches()) {
+    cache->traceWeak(trc, nullptr);
   }
 
   if (jit::JitZone* jitZone = zone->jitZone()) {
@@ -656,7 +655,7 @@
   // need to be updated. Do not update any non-reserved slots, since they might
   // point back to unprocessed descriptor objects.
 
-  zone->rttValueObjects().sweep(nullptr);
+  zone->rttValueObjects().traceWeak(trc, nullptr);
 
   for (auto r = zone->rttValueObjects().all(); !r.empty(); r.popFront()) {
     RttValue* obj = &MaybeForwardedObjectAs<RttValue>(r.front());
@@ -797,13 +796,6 @@
   // as much as possible.
   updateAllCellPointers(&trc, zone);
 
-  // Mark roots to update them.
-  {
-    gcstats::AutoPhase ap(stats(), gcstats::PhaseKind::MARK_ROOTS);
-
-    WeakMapBase::traceZone(zone, &trc);
-  }
-
   // Sweep everything to fix up weak pointers.
   sweepZoneAfterCompacting(&trc, zone);
 
@@ -845,7 +837,7 @@
   // Sweep everything to fix up weak pointers.
   jit::JitRuntime::TraceWeakJitcodeGlobalTable(rt, &trc);
   for (JS::detail::WeakCacheBase* cache : rt->weakCaches()) {
-    cache->sweep(nullptr);
+    cache->traceWeak(&trc, nullptr);
   }
 
   // Type inference may put more blocks here to free.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/FinalizationRegistry.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/FinalizationRegistry.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/FinalizationRegistry.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/FinalizationRegistry.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -88,7 +88,7 @@
       registry->queue()->setHasRegistry(false);
       e.removeFront();
     } else {
-      result.finalTarget()->as<FinalizationRegistryObject>().sweep();
+      result.finalTarget()->as<FinalizationRegistryObject>().traceWeak(trc);
     }
   }
 
@@ -97,7 +97,7 @@
     FinalizationRecordVector& records = e.front().value();
 
     // Update any pointers moved by the GC.
-    records.sweep();
+    records.traceWeak(trc);
 
     // Sweep finalization records and remove records for:
     records.eraseIf([](JSObject* obj) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/GC.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/GC.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/GC.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/GC.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -370,6 +370,7 @@
       stats_(this),
       marker(rt),
       barrierTracer(rt),
+      sweepingTracer(rt),
       heapSize(nullptr),
       helperThreadRatio(TuningDefaults::HelperThreadRatio),
       maxHelperThreads(TuningDefaults::MaxHelperThreads),
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/GCInternals.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/GCInternals.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/GCInternals.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/GCInternals.h	2021-10-20 19:28:23.000000000 +0000
@@ -279,15 +279,6 @@
   friend class GenericTracerImpl<MovingTracer>;
 };
 
-struct SweepingTracer final : public GenericTracerImpl<SweepingTracer> {
-  explicit SweepingTracer(JSRuntime* rt);
-
- private:
-  template <typename T>
-  T* onEdge(T* thingp);
-  friend class GenericTracerImpl<SweepingTracer>;
-};
-
 struct MinorSweepingTracer final
     : public GenericTracerImpl<MinorSweepingTracer> {
   explicit MinorSweepingTracer(JSRuntime* rt);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/GCRuntime.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/GCRuntime.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/GCRuntime.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/GCRuntime.h	2021-10-20 19:28:23.000000000 +0000
@@ -271,6 +271,15 @@
   GCMarker& marker;
 };
 
+struct SweepingTracer final : public GenericTracerImpl<SweepingTracer> {
+  explicit SweepingTracer(JSRuntime* rt);
+
+ private:
+  template <typename T>
+  T* onEdge(T* thingp);
+  friend class GenericTracerImpl<SweepingTracer>;
+};
+
 class GCRuntime {
   friend GCMarker::MarkQueueProgress GCMarker::processMarkQueue();
 
@@ -912,6 +921,7 @@
 
   GCMarker marker;
   BarrierTracer barrierTracer;
+  SweepingTracer sweepingTracer;
 
   Vector<JS::GCCellPtr, 0, SystemAllocPolicy> unmarkGrayStack;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Marking.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Marking.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Marking.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Marking.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -2875,12 +2875,12 @@
     return thing;
   }
 
-  // TODO: We should assert the zone of the tenured cell is in Sweeping state,
-  // however we need to fix atoms and JitcodeGlobalTable first.
-  // Bug 1501334 : IsAboutToBeFinalized doesn't work for atoms
-  // Bug 1071218 : Refactor Debugger::sweepAll and
-  //               JitRuntime::SweepJitcodeGlobalTable to work per sweep group
-  if (!thing->isMarkedAny()) {
+  // It would be nice if we could assert that the zone of the tenured cell is in
+  // the Sweeping state, but that isn't always true for:
+  //  - atoms
+  //  - the jitcode map
+  //  - the mark queue
+  if (thing->zoneFromAnyThread()->isGCSweeping() && !thing->isMarkedAny()) {
     return nullptr;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/NurseryAwareHashMap.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/NurseryAwareHashMap.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/NurseryAwareHashMap.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/NurseryAwareHashMap.h	2021-10-20 19:28:23.000000000 +0000
@@ -134,8 +134,8 @@
       }
 
       // Drop the entry if the value is not marked.
-      if (JS::GCPolicy<MapValue>::needsSweep(&p->value())) {
-        map.remove(key);
+      if (!JS::GCPolicy<MapValue>::traceWeak(trc, &p->value())) {
+        map.remove(p);
         continue;
       }
 
@@ -148,7 +148,7 @@
       // as a cache to avoid re-copying the string, and currently that entire
       // cache is flushed on major GC.
       MapKey copy(key);
-      if (JS::GCPolicy<MapKey>::needsSweep(&copy)) {
+      if (!JS::GCPolicy<MapKey>::traceWeak(trc, &copy)) {
         map.remove(p);
         continue;
       }
@@ -176,7 +176,7 @@
     nurseryEntries.clear();
   }
 
-  void sweep() { map.sweep(); }
+  void traceWeak(JSTracer* trc) { map.traceWeak(trc); }
 
   void clear() {
     map.clear();
@@ -196,6 +196,10 @@
                     const char* name) {
     js::TraceEdge(trc, thingp, name);
   }
+  static bool traceWeak(JSTracer* trc,
+                        js::detail::UnsafeBareWeakHeapPtr<T>* thingp) {
+    return js::TraceWeakEdge(trc, thingp, "UnsafeBareWeakHeapPtr");
+  }
   static bool needsSweep(js::detail::UnsafeBareWeakHeapPtr<T>* thingp) {
     return js::gc::IsAboutToBeFinalized(thingp);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Scheduling.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Scheduling.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Scheduling.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Scheduling.h	2021-10-20 19:28:22.000000000 +0000
@@ -10,6 +10,9 @@
  * GC Scheduling Overview
  * ======================
  *
+ * See also GC scheduling from Firefox's perspective here:
+ * https://searchfox.org/mozilla-central/source/dom/base/CCGCScheduler.cpp
+ *
  * Scheduling GC's in SpiderMonkey/Firefox is tremendously complicated because
  * of the large number of subtle, cross-cutting, and widely dispersed factors
  * that must be taken into account. A summary of some of the more important
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Sweeping.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Sweeping.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Sweeping.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Sweeping.cpp	2021-10-20 19:28:22.000000000 +0000
@@ -1177,7 +1177,8 @@
   void run(AutoLockHelperThreadState& lock) override {
     AutoUnlockHelperThreadState unlock(lock);
     AutoSetThreadIsSweeping threadIsSweeping(zone);
-    cache.sweep(&gc->storeBuffer());
+    SweepingTracer trc(gc->rt);
+    cache.traceWeak(&trc, &gc->storeBuffer());
   }
 };
 
@@ -1202,9 +1203,10 @@
 }
 
 void GCRuntime::sweepCCWrappers() {
+  SweepingTracer trc(rt);
   AutoSetThreadIsSweeping threadIsSweeping;  // This can touch all zones.
   for (SweepGroupZonesIter zone(this); !zone.done(); zone.next()) {
-    zone->sweepAllCrossCompartmentWrappers();
+    zone->traceWeakCCWEdges(&trc);
   }
 }
 
@@ -1236,6 +1238,7 @@
 }
 
 void GCRuntime::sweepWeakMaps() {
+  SweepingTracer trc(rt);
   AutoSetThreadIsSweeping threadIsSweeping;  // This may touch any zone.
   for (SweepGroupZonesIter zone(this); !zone.done(); zone.next()) {
     /* No need to look up any more weakmap keys from this sweep group. */
@@ -1247,7 +1250,7 @@
     // Lock the storebuffer since this may access it when rehashing or resizing
     // the tables.
     AutoLockStoreBuffer lock(&storeBuffer());
-    zone->sweepWeakMaps();
+    zone->sweepWeakMaps(&trc);
   }
 }
 
@@ -1405,18 +1408,19 @@
 
   MOZ_ASSERT(immediateTasks->empty());
 
+  GCRuntime* gc = &rt->gc;
   bool ok =
       IterateWeakCaches(rt, [&](JS::detail::WeakCacheBase* cache, Zone* zone) {
-        if (!cache->needsSweep()) {
+        if (cache->empty()) {
           return true;
         }
 
         // Caches that support incremental sweeping will be swept later.
-        if (zone && cache->setNeedsIncrementalBarrier(true)) {
+        if (zone && cache->setIncrementalBarrierTracer(&gc->sweepingTracer)) {
           return true;
         }
 
-        return immediateTasks->emplaceBack(&rt->gc, zone, *cache);
+        return immediateTasks->emplaceBack(gc, zone, *cache);
       });
 
   if (!ok) {
@@ -1429,11 +1433,12 @@
 static void SweepAllWeakCachesOnMainThread(JSRuntime* rt) {
   // If we ran out of memory, do all the work on the main thread.
   gcstats::AutoPhase ap(rt->gc.stats(), gcstats::PhaseKind::SWEEP_WEAK_CACHES);
+  SweepingTracer trc(rt);
   IterateWeakCaches(rt, [&](JS::detail::WeakCacheBase* cache, Zone* zone) {
     if (cache->needsIncrementalBarrier()) {
-      cache->setNeedsIncrementalBarrier(false);
+      cache->setIncrementalBarrierTracer(nullptr);
     }
-    cache->sweep(&rt->gc.storeBuffer());
+    cache->traceWeak(&trc, &rt->gc.storeBuffer());
     return true;
   });
 }
@@ -1842,8 +1847,10 @@
 
   JS::detail::WeakCacheBase* cache = item.cache;
   MOZ_ASSERT(cache->needsIncrementalBarrier());
-  size_t steps = cache->sweep(&gc->storeBuffer());
-  cache->setNeedsIncrementalBarrier(false);
+
+  SweepingTracer trc(gc->rt);
+  size_t steps = cache->traceWeak(&trc, &gc->storeBuffer());
+  cache->setIncrementalBarrierTracer(nullptr);
 
   return steps;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/WeakMap.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/WeakMap.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/WeakMap.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/WeakMap.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -41,11 +41,11 @@
   }
 }
 
-void WeakMapBase::traceZone(JS::Zone* zone, JSTracer* tracer) {
-  MOZ_ASSERT(tracer->weakMapAction() != JS::WeakMapTraceAction::Skip);
-  for (WeakMapBase* m : zone->gcWeakMapList()) {
-    m->trace(tracer);
-    TraceNullableEdge(tracer, &m->memberOf, "memberOf");
+void Zone::traceWeakMaps(JSTracer* trc) {
+  MOZ_ASSERT(trc->weakMapAction() != JS::WeakMapTraceAction::Skip);
+  for (WeakMapBase* m : gcWeakMapList()) {
+    m->trace(trc);
+    TraceNullableEdge(trc, &m->memberOf, "memberOf");
   }
 }
 
@@ -84,20 +84,20 @@
   return true;
 }
 
-void WeakMapBase::sweepZone(JS::Zone* zone) {
-  for (WeakMapBase* m = zone->gcWeakMapList().getFirst(); m;) {
+void Zone::sweepWeakMaps(JSTracer* trc) {
+  for (WeakMapBase* m = gcWeakMapList().getFirst(); m;) {
     WeakMapBase* next = m->getNext();
     if (m->mapColor) {
-      m->sweep();
+      m->traceWeakEdges(trc);
     } else {
       m->clearAndCompact();
-      m->removeFrom(zone->gcWeakMapList());
+      m->removeFrom(gcWeakMapList());
     }
     m = next;
   }
 
 #ifdef DEBUG
-  for (WeakMapBase* m : zone->gcWeakMapList()) {
+  for (WeakMapBase* m : gcWeakMapList()) {
     MOZ_ASSERT(m->isInList() && m->mapColor);
   }
 #endif
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/WeakMap.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/WeakMap.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/WeakMap.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/WeakMap.h	2021-10-20 19:28:22.000000000 +0000
@@ -107,9 +107,6 @@
   // Unmark all weak maps in a zone.
   static void unmarkZone(JS::Zone* zone);
 
-  // Trace all the weakmaps in a zone.
-  static void traceZone(JS::Zone* zone, JSTracer* tracer);
-
   // Check all weak maps in a zone that have been marked as live in this garbage
   // collection, and mark the values of all entries that have become strong
   // references to them. Return true if we marked any new values, indicating
@@ -120,10 +117,6 @@
   // Add zone edges for weakmaps with key delegates in a different zone.
   [[nodiscard]] static bool findSweepGroupEdgesForZone(JS::Zone* zone);
 
-  // Sweep the weak maps in a zone, removing dead weak maps and removing
-  // entries of live weak maps whose keys are dead.
-  static void sweepZone(JS::Zone* zone);
-
   // Sweep the marked weak maps in a zone, updating moved keys.
   static void sweepZoneAfterMinorGC(JS::Zone* zone);
 
@@ -146,7 +139,7 @@
   // override these with definitions appropriate for their Key and Value types.
   virtual void trace(JSTracer* tracer) = 0;
   virtual bool findSweepGroupEdges() = 0;
-  virtual void sweep() = 0;
+  virtual void traceWeakEdges(JSTracer* trc) = 0;
   virtual void traceMappings(WeakMapTracer* tracer) = 0;
   virtual void clearAndCompact() = 0;
 
@@ -316,7 +309,7 @@
     JS::ExposeObjectToActiveJS(obj);
   }
 
-  void sweep() override;
+  void traceWeakEdges(JSTracer* trc) override;
 
   void clearAndCompact() override {
     Base::clear();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/WeakMap-inl.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/WeakMap-inl.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/WeakMap-inl.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/WeakMap-inl.h	2021-10-20 19:28:23.000000000 +0000
@@ -336,10 +336,10 @@
 }
 
 template <class K, class V>
-void WeakMap<K, V>::sweep() {
-  /* Remove all entries whose keys remain unmarked. */
+void WeakMap<K, V>::traceWeakEdges(JSTracer* trc) {
+  // Remove all entries whose keys remain unmarked.
   for (Enum e(*this); !e.empty(); e.popFront()) {
-    if (gc::IsAboutToBeFinalized(&e.front().mutableKey())) {
+    if (!TraceWeakEdge(trc, &e.front().mutableKey(), "WeakMap key")) {
       e.removeFront();
     }
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Zone.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Zone.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Zone.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Zone.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -341,10 +341,10 @@
   }
 }
 
-void Zone::sweepAllCrossCompartmentWrappers() {
-  crossZoneStringWrappers().sweep();
+void Zone::traceWeakCCWEdges(JSTracer* trc) {
+  crossZoneStringWrappers().traceWeak(trc);
   for (CompartmentsInZoneIter comp(this); !comp.done(); comp.next()) {
-    comp->sweepCrossCompartmentObjectWrappers();
+    comp->traceCrossCompartmentObjectWrapperEdges(trc);
   }
 }
 
@@ -353,9 +353,9 @@
   MOZ_ASSERT(trc->runtime()->gc.isHeapCompacting());
 
   for (ZonesIter zone(trc->runtime(), WithAtoms); !zone.done(); zone.next()) {
-    // Sweep the wrapper map to update keys (wrapped values) in other
+    // Trace the wrapper map to update keys (wrapped values) in other
     // compartments that may have been moved.
-    zone->crossZoneStringWrappers().sweep();
+    zone->crossZoneStringWrappers().traceWeak(trc);
 
     for (CompartmentsInZoneIter comp(zone); !comp.done(); comp.next()) {
       comp->fixupCrossCompartmentObjectWrappersAfterMovingGC(trc);
@@ -392,11 +392,6 @@
 }
 #endif
 
-void Zone::sweepWeakMaps() {
-  /* Finalize unreachable (key,value) pairs in all weak maps. */
-  WeakMapBase::sweepZone(this);
-}
-
 void Zone::discardJitCode(JSFreeOp* fop, const DiscardOptions& options) {
   if (!jitZone()) {
     return;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Zone.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Zone.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/gc/Zone.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/gc/Zone.h	2021-10-20 19:28:23.000000000 +0000
@@ -480,9 +480,15 @@
 
   void sweepAfterMinorGC(JSTracer* trc);
   void sweepUniqueIds();
-  void sweepWeakMaps();
   void sweepCompartments(JSFreeOp* fop, bool keepAtleastOne, bool lastGC);
 
+  // Remove dead weak maps from gcWeakMapList_ and remove entries from the
+  // remaining weak maps whose keys are dead.
+  void sweepWeakMaps(JSTracer* trc);
+
+  // Trace all weak maps in this zone. Used to update edges after a moving GC.
+  void traceWeakMaps(JSTracer* trc);
+
   js::gc::UniqueIdMap& uniqueIds() { return uniqueIds_.ref(); }
 
   void notifyObservingDebuggers();
@@ -512,7 +518,7 @@
 
   void dropStringWrappersOnGC();
 
-  void sweepAllCrossCompartmentWrappers();
+  void traceWeakCCWEdges(JSTracer* trc);
   static void fixupAllCrossCompartmentWrappersAfterMovingGC(JSTracer* trc);
 
   mozilla::LinkedList<detail::WeakCacheBase>& weakCaches() {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm/CodeGenerator-arm.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm/CodeGenerator-arm.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm/CodeGenerator-arm.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm/CodeGenerator-arm.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -2044,6 +2044,23 @@
   masm.bind(&ok);
 }
 
+void CodeGenerator::visitWasmAddOffset64(LWasmAddOffset64* lir) {
+  MWasmAddOffset* mir = lir->mir();
+  Register64 base = ToRegister64(lir->base());
+  Register64 out = ToOutRegister64(lir);
+  MOZ_ASSERT(base.low != out.high && base.high != out.low);
+
+  ScratchRegisterScope scratch(masm);
+  masm.ma_add(base.low, Imm32(mir->offset()), out.low, scratch, SetCC);
+  masm.xor32(scratch, scratch);
+  masm.ma_adc(base.high, scratch, out.high, SetCC);
+
+  Label ok;
+  masm.ma_b(&ok, Assembler::CarryClear);
+  masm.wasmTrap(wasm::Trap::OutOfBounds, mir->bytecodeOffset());
+  masm.bind(&ok);
+}
+
 template <typename T>
 void CodeGeneratorARM::emitWasmStore(T* lir) {
   const MWasmStore* mir = lir->mir();
@@ -2670,8 +2687,10 @@
   MOZ_CRASH("64-bit only");
 }
 
-void CodeGenerator::visitWasmWrapU32Index(LWasmWrapU32Index*) {
-  MOZ_CRASH("64-bit only");
+void CodeGenerator::visitWasmWrapU32Index(LWasmWrapU32Index* lir) {
+  // Generates no code on this platform because we just return the low part of
+  // the input register pair.
+  MOZ_ASSERT(ToRegister(lir->input()) == ToRegister(lir->output()));
 }
 
 void CodeGenerator::visitDivOrModI64(LDivOrModI64* lir) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm/MacroAssembler-arm.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm/MacroAssembler-arm.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm/MacroAssembler-arm.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm/MacroAssembler-arm.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -4726,27 +4726,44 @@
 }
 
 void MacroAssembler::wasmBoundsCheck32(Condition cond, Register index,
-                                       Register boundsCheckLimit,
-                                       Label* label) {
+                                       Register boundsCheckLimit, Label* ok) {
   as_cmp(index, O2Reg(boundsCheckLimit));
-  as_b(label, cond);
+  as_b(ok, cond);
   if (JitOptions.spectreIndexMasking) {
     ma_mov(boundsCheckLimit, index, LeaveCC, cond);
   }
 }
 
 void MacroAssembler::wasmBoundsCheck32(Condition cond, Register index,
-                                       Address boundsCheckLimit, Label* label) {
+                                       Address boundsCheckLimit, Label* ok) {
   ScratchRegisterScope scratch(*this);
   ma_ldr(DTRAddr(boundsCheckLimit.base, DtrOffImm(boundsCheckLimit.offset)),
          scratch);
   as_cmp(index, O2Reg(scratch));
-  as_b(label, cond);
+  as_b(ok, cond);
   if (JitOptions.spectreIndexMasking) {
     ma_mov(scratch, index, LeaveCC, cond);
   }
 }
 
+void MacroAssembler::wasmBoundsCheck64(Condition cond, Register64 index,
+                                       Register64 boundsCheckLimit, Label* ok) {
+  Label notOk;
+  cmp32(index.high, Imm32(0));
+  j(Assembler::NonZero, &notOk);
+  wasmBoundsCheck32(cond, index.low, boundsCheckLimit.low, ok);
+  bind(&notOk);
+}
+
+void MacroAssembler::wasmBoundsCheck64(Condition cond, Register64 index,
+                                       Address boundsCheckLimit, Label* ok) {
+  Label notOk;
+  cmp32(index.high, Imm32(0));
+  j(Assembler::NonZero, &notOk);
+  wasmBoundsCheck32(cond, index.low, boundsCheckLimit, ok);
+  bind(&notOk);
+}
+
 void MacroAssembler::wasmTruncateDoubleToUInt32(FloatRegister input,
                                                 Register output,
                                                 bool isSaturating,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm/MacroAssembler-arm-inl.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm/MacroAssembler-arm-inl.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm/MacroAssembler-arm-inl.h	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm/MacroAssembler-arm-inl.h	2021-10-20 19:28:23.000000000 +0000
@@ -1740,6 +1740,14 @@
   j(cond, label);
 }
 
+void MacroAssembler::branchAdd64(Condition cond, Imm32 imm, Register64 dest,
+                                 Label* label) {
+  ScratchRegisterScope scratch(*this);
+  ma_add(imm, dest.low, scratch, SetCC);
+  as_adc(dest.high, dest.high, Imm8(0), SetCC);
+  j(cond, label);
+}
+
 template <typename T>
 void MacroAssembler::branchAddPtr(Condition cond, T src, Register dest,
                                   Label* label) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm/Simulator-arm.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm/Simulator-arm.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm/Simulator-arm.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm/Simulator-arm.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -2393,11 +2393,25 @@
                                                          int32_t);
 typedef int32_t (*Prototype_Int32_GeneralGeneralInt32Int32)(int32_t, int32_t,
                                                             int32_t, int32_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32Int32Int32)(int32_t, int64_t,
+                                                               int32_t, int32_t,
+                                                               int32_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32)(int32_t, int64_t, int32_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32Int64)(int32_t, int64_t,
+                                                          int32_t, int64_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32Int64General)(
+    int32_t, int64_t, int32_t, int64_t, int32_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int64Int64)(int32_t, int64_t,
+                                                          int64_t, int64_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int64Int64General)(
+    int32_t, int64_t, int64_t, int64_t, int32_t);
 typedef int32_t (*Prototype_General_GeneralInt32)(int32_t, int32_t);
 typedef int32_t (*Prototype_General_GeneralInt32Int32)(int32_t, int32_t,
                                                        int32_t);
 typedef int32_t (*Prototype_General_GeneralInt32General)(int32_t, int32_t,
                                                          int32_t);
+typedef int64_t (*Prototype_Int64_General)(int32_t);
+typedef int64_t (*Prototype_Int64_GeneralInt64)(int32_t, int64_t);
 
 // Fill the volatile registers with scratch values.
 //
@@ -2446,6 +2460,9 @@
       int32_t* stack_pointer = reinterpret_cast<int32_t*>(get_register(sp));
       int32_t arg4 = stack_pointer[0];
       int32_t arg5 = stack_pointer[1];
+      int32_t arg6 = stack_pointer[2];
+      int32_t arg7 = stack_pointer[3];
+      int32_t arg8 = stack_pointer[4];
 
       int32_t saved_lr = get_register(lr);
       intptr_t external =
@@ -2930,6 +2947,65 @@
           setCallResult(result);
           break;
         }
+        case Args_Int32_GeneralInt64Int32Int32Int32: {
+          Prototype_Int32_GeneralInt64Int32Int32Int32 target =
+              reinterpret_cast<Prototype_Int32_GeneralInt64Int32Int32Int32>(
+                  external);
+          int64_t result =
+              target(arg0, MakeInt64(arg2, arg3), arg4, arg5, arg6);
+          scratchVolatileRegisters(/* scratchFloat = true */);
+          setCallResult(result);
+          break;
+        }
+        case Args_Int32_GeneralInt64Int32: {
+          Prototype_Int32_GeneralInt64Int32 target =
+              reinterpret_cast<Prototype_Int32_GeneralInt64Int32>(external);
+          int64_t result = target(arg0, MakeInt64(arg2, arg3), arg4);
+          scratchVolatileRegisters(/* scratchFloat = true */);
+          setCallResult(result);
+          break;
+        }
+        case Args_Int32_GeneralInt64Int32Int64: {
+          Prototype_Int32_GeneralInt64Int32Int64 target =
+              reinterpret_cast<Prototype_Int32_GeneralInt64Int32Int64>(
+                  external);
+          int64_t result =
+              target(arg0, MakeInt64(arg2, arg3), arg4, MakeInt64(arg6, arg7));
+          scratchVolatileRegisters(/* scratchFloat = true */);
+          setCallResult(result);
+          break;
+        }
+        case Args_Int32_GeneralInt64Int32Int64General: {
+          Prototype_Int32_GeneralInt64Int32Int64General target =
+              reinterpret_cast<Prototype_Int32_GeneralInt64Int32Int64General>(
+                  external);
+          int64_t result = target(arg0, MakeInt64(arg2, arg3), arg4,
+                                  MakeInt64(arg6, arg7), arg8);
+          scratchVolatileRegisters(/* scratchFloat = true */);
+          setCallResult(result);
+          break;
+        }
+        case Args_Int32_GeneralInt64Int64Int64: {
+          Prototype_Int32_GeneralInt64Int64Int64 target =
+              reinterpret_cast<Prototype_Int32_GeneralInt64Int64Int64>(
+                  external);
+          int64_t result = target(arg0, MakeInt64(arg2, arg3),
+                                  MakeInt64(arg4, arg5), MakeInt64(arg6, arg7));
+          scratchVolatileRegisters(/* scratchFloat = true */);
+          setCallResult(result);
+          break;
+        }
+        case Args_Int32_GeneralInt64Int64Int64General: {
+          Prototype_Int32_GeneralInt64Int64Int64General target =
+              reinterpret_cast<Prototype_Int32_GeneralInt64Int64Int64General>(
+                  external);
+          int64_t result =
+              target(arg0, MakeInt64(arg2, arg3), MakeInt64(arg4, arg5),
+                     MakeInt64(arg6, arg7), arg8);
+          scratchVolatileRegisters(/* scratchFloat = true */);
+          setCallResult(result);
+          break;
+        }
         case Args_General_GeneralInt32: {
           Prototype_General_GeneralInt32 target =
               reinterpret_cast<Prototype_General_GeneralInt32>(external);
@@ -2953,6 +3029,22 @@
           scratchVolatileRegisters(/* scratchFloat = true */);
           setCallResult(result);
           break;
+        }
+        case Args_Int64_General: {
+          Prototype_Int64_General target =
+              reinterpret_cast<Prototype_Int64_General>(external);
+          int64_t result = target(arg0);
+          scratchVolatileRegisters(/* scratchFloat = true */);
+          setCallResult(result);
+          break;
+        }
+        case Args_Int64_GeneralInt64: {
+          Prototype_Int64_GeneralInt64 target =
+              reinterpret_cast<Prototype_Int64_GeneralInt64>(external);
+          int64_t result = target(arg0, MakeInt64(arg2, arg3));
+          scratchVolatileRegisters(/* scratchFloat = true */);
+          setCallResult(result);
+          break;
         }
 
         default:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm64/CodeGenerator-arm64.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm64/CodeGenerator-arm64.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm64/CodeGenerator-arm64.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm64/CodeGenerator-arm64.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -2295,8 +2295,11 @@
 
 static Maybe<uint64_t> IsAbsoluteAddress(const LAllocation* ptr,
                                          const wasm::MemoryAccessDesc& access) {
-  if (ptr->isConstant()) {
-    uint64_t base_address = uint32_t(ToInt32(ptr));
+  if (ptr->isConstantValue()) {
+    const MConstant* c = ptr->toConstant();
+    uint64_t base_address = c->type() == MIRType::Int32
+                                ? uint64_t(uint32_t(c->toInt32()))
+                                : uint64_t(c->toInt64());
     uint64_t offset = access.offset();
     return Some(base_address + offset);
   }
@@ -2312,6 +2315,8 @@
     return;
   }
 
+  // ptr is a GPR and is either a 32-bit value zero-extended to 64-bit, or a
+  // true 64-bit value.
   masm.wasmLoad(mir->access(), HeapReg, ToRegister(lir->ptr()),
                 ToAnyRegister(lir->output()));
 }
@@ -2553,6 +2558,20 @@
             Operand(mir->offset()));
 
   Label ok;
+  masm.j(Assembler::CarryClear, &ok);
+  masm.wasmTrap(wasm::Trap::OutOfBounds, mir->bytecodeOffset());
+  masm.bind(&ok);
+}
+
+void CodeGenerator::visitWasmAddOffset64(LWasmAddOffset64* lir) {
+  MWasmAddOffset* mir = lir->mir();
+  Register64 base = ToRegister64(lir->base());
+  Register64 out = ToOutRegister64(lir);
+
+  masm.Adds(ARMRegister(out.reg, 64), ARMRegister(base.reg, 64),
+            Operand(mir->offset()));
+
+  Label ok;
   masm.j(Assembler::CarryClear, &ok);
   masm.wasmTrap(wasm::Trap::OutOfBounds, mir->bytecodeOffset());
   masm.bind(&ok);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm64/Lowering-arm64.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm64/Lowering-arm64.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm64/Lowering-arm64.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm64/Lowering-arm64.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -661,7 +661,8 @@
 
 void LIRGenerator::visitWasmCompareExchangeHeap(MWasmCompareExchangeHeap* ins) {
   MDefinition* base = ins->base();
-  MOZ_ASSERT(base->type() == MIRType::Int32);
+  // See comment in visitWasmLoad re the type of 'base'.
+  MOZ_ASSERT(base->type() == MIRType::Int32 || base->type() == MIRType::Int64);
 
   // Note, the access type may be Int64 here.
 
@@ -674,7 +675,8 @@
 
 void LIRGenerator::visitWasmAtomicExchangeHeap(MWasmAtomicExchangeHeap* ins) {
   MDefinition* base = ins->base();
-  MOZ_ASSERT(base->type() == MIRType::Int32);
+  // See comment in visitWasmLoad re the type of 'base'.
+  MOZ_ASSERT(base->type() == MIRType::Int32 || base->type() == MIRType::Int64);
 
   // Note, the access type may be Int64 here.
 
@@ -685,7 +687,8 @@
 
 void LIRGenerator::visitWasmAtomicBinopHeap(MWasmAtomicBinopHeap* ins) {
   MDefinition* base = ins->base();
-  MOZ_ASSERT(base->type() == MIRType::Int32);
+  // See comment in visitWasmLoad re the type of 'base'.
+  MOZ_ASSERT(base->type() == MIRType::Int32 || base->type() == MIRType::Int64);
 
   // Note, the access type may be Int64 here.
 
@@ -906,7 +909,9 @@
 
 void LIRGenerator::visitWasmLoad(MWasmLoad* ins) {
   MDefinition* base = ins->base();
-  MOZ_ASSERT(base->type() == MIRType::Int32);
+  // 'base' is a GPR but may be of either type.  If it is 32-bit it is
+  // zero-extended and can act as 64-bit.
+  MOZ_ASSERT(base->type() == MIRType::Int32 || base->type() == MIRType::Int64);
 
   LAllocation ptr = useRegisterOrConstantAtStart(base);
 
@@ -921,7 +926,8 @@
 
 void LIRGenerator::visitWasmStore(MWasmStore* ins) {
   MDefinition* base = ins->base();
-  MOZ_ASSERT(base->type() == MIRType::Int32);
+  // See comment in visitWasmLoad re the type of 'base'.
+  MOZ_ASSERT(base->type() == MIRType::Int32 || base->type() == MIRType::Int64);
 
   MDefinition* value = ins->value();
 
@@ -1368,6 +1374,9 @@
 
 void LIRGenerator::visitWasmLoadLaneSimd128(MWasmLoadLaneSimd128* ins) {
 #ifdef ENABLE_WASM_SIMD
+  // On 64-bit systems, the base pointer can be 32 bits or 64 bits.  Either way,
+  // it fits in a GPR so we can ignore the Register/Register64 distinction here.
+
   // Optimal allocation here reuses the value input for the output register
   // because codegen otherwise has to copy the input to the output; this is
   // because load-lane is implemented as load + replace-lane.  Bug 1706106 may
@@ -1385,6 +1394,8 @@
 
 void LIRGenerator::visitWasmStoreLaneSimd128(MWasmStoreLaneSimd128* ins) {
 #ifdef ENABLE_WASM_SIMD
+  // See comment above about the base pointer.
+
   LUse base = useRegisterAtStart(ins->base());
   LUse input = useRegisterAtStart(ins->value());
   MOZ_ASSERT(!ins->hasMemoryBase());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm64/MacroAssembler-arm64.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm64/MacroAssembler-arm64.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm64/MacroAssembler-arm64.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm64/MacroAssembler-arm64.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -1767,26 +1767,24 @@
 }
 
 void MacroAssembler::wasmBoundsCheck32(Condition cond, Register index,
-                                       Register boundsCheckLimit,
-                                       Label* label) {
-  branch32(cond, index, boundsCheckLimit, label);
+                                       Register boundsCheckLimit, Label* ok) {
+  branch32(cond, index, boundsCheckLimit, ok);
   if (JitOptions.spectreIndexMasking) {
     csel(ARMRegister(index, 32), vixl::wzr, ARMRegister(index, 32), cond);
   }
 }
 
 void MacroAssembler::wasmBoundsCheck32(Condition cond, Register index,
-                                       Address boundsCheckLimit, Label* label) {
-  branch32(cond, index, boundsCheckLimit, label);
+                                       Address boundsCheckLimit, Label* ok) {
+  branch32(cond, index, boundsCheckLimit, ok);
   if (JitOptions.spectreIndexMasking) {
     csel(ARMRegister(index, 32), vixl::wzr, ARMRegister(index, 32), cond);
   }
 }
 
 void MacroAssembler::wasmBoundsCheck64(Condition cond, Register64 index,
-                                       Register64 boundsCheckLimit,
-                                       Label* label) {
-  branchPtr(cond, index.reg, boundsCheckLimit.reg, label);
+                                       Register64 boundsCheckLimit, Label* ok) {
+  branchPtr(cond, index.reg, boundsCheckLimit.reg, ok);
   if (JitOptions.spectreIndexMasking) {
     csel(ARMRegister(index.reg, 64), vixl::xzr, ARMRegister(index.reg, 64),
          cond);
@@ -1794,8 +1792,8 @@
 }
 
 void MacroAssembler::wasmBoundsCheck64(Condition cond, Register64 index,
-                                       Address boundsCheckLimit, Label* label) {
-  branchPtr(InvertCondition(cond), boundsCheckLimit, index.reg, label);
+                                       Address boundsCheckLimit, Label* ok) {
+  branchPtr(InvertCondition(cond), boundsCheckLimit, index.reg, ok);
   if (JitOptions.spectreIndexMasking) {
     csel(ARMRegister(index.reg, 64), vixl::xzr, ARMRegister(index.reg, 64),
          cond);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm64/vixl/MozSimulator-vixl.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm64/vixl/MozSimulator-vixl.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/arm64/vixl/MozSimulator-vixl.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/arm64/vixl/MozSimulator-vixl.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -581,6 +581,21 @@
                                                             int64_t,
                                                             int32_t,
                                                             int32_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32Int32Int32)(int64_t, int64_t,
+                                                               int32_t, int32_t,
+                                                               int32_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32)(int64_t, int64_t,
+                                                     int32_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32Int64)(int64_t, int64_t,
+                                                          int32_t, int64_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32Int64General)(int64_t, int64_t,
+                                                                 int32_t, int64_t,
+                                                                 int64_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int64Int64)(int64_t, int64_t,
+                                                                 int64_t, int64_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int64Int64General)(int64_t, int64_t,
+                                                                 int64_t, int64_t,
+                                                                 int64_t);
 typedef int64_t (*Prototype_General_GeneralInt32)(int64_t, int32_t);
 typedef int64_t (*Prototype_General_GeneralInt32Int32)(int64_t,
                                                        int32_t,
@@ -588,6 +603,8 @@
 typedef int64_t (*Prototype_General_GeneralInt32General)(int64_t,
                                                          int32_t,
                                                          int64_t);
+typedef int64_t (*Prototype_Int64_General)(int64_t);
+typedef int64_t (*Prototype_Int64_GeneralInt64)(int64_t, int64_t);
 
 // Simulator support for callWithABI().
 void
@@ -883,6 +900,42 @@
       setGPR32Result(ret);
       break;
     }
+    case js::jit::Args_Int32_GeneralInt64Int32Int32Int32: {
+      int32_t ret = reinterpret_cast<Prototype_Int32_GeneralInt64Int32Int32Int32>(
+          nativeFn)(x0, x1, x2, x3, x4);
+      setGPR32Result(ret);
+      break;
+    }
+    case js::jit::Args_Int32_GeneralInt64Int32: {
+      int32_t ret = reinterpret_cast<Prototype_Int32_GeneralInt64Int32>(
+          nativeFn)(x0, x1, x2);
+      setGPR32Result(ret);
+      break;
+    }
+    case js::jit::Args_Int32_GeneralInt64Int32Int64: {
+      int32_t ret = reinterpret_cast<Prototype_Int32_GeneralInt64Int32Int64>(
+          nativeFn)(x0, x1, x2, x3);
+      setGPR32Result(ret);
+      break;
+    }
+    case js::jit::Args_Int32_GeneralInt64Int32Int64General: {
+      int32_t ret = reinterpret_cast<Prototype_Int32_GeneralInt64Int32Int64General>(
+          nativeFn)(x0, x1, x2, x3, x4);
+      setGPR32Result(ret);
+      break;
+    }
+    case js::jit::Args_Int32_GeneralInt64Int64Int64: {
+      int32_t ret = reinterpret_cast<Prototype_Int32_GeneralInt64Int64Int64>(
+          nativeFn)(x0, x1, x2, x3);
+      setGPR32Result(ret);
+      break;
+    }
+    case js::jit::Args_Int32_GeneralInt64Int64Int64General: {
+      int32_t ret = reinterpret_cast<Prototype_Int32_GeneralInt64Int64Int64General>(
+          nativeFn)(x0, x1, x2, x3, x4);
+      setGPR32Result(ret);
+      break;
+    }
     case js::jit::Args_General_GeneralInt32: {
       int64_t ret =
           reinterpret_cast<Prototype_General_GeneralInt32>(nativeFn)(x0, x1);
@@ -902,6 +955,20 @@
       setGPR64Result(ret);
       break;
     }
+    case js::jit::Args_Int64_General: {
+      int64_t ret =
+          reinterpret_cast<Prototype_Int64_General>(
+              nativeFn)(x0);
+      setGPR64Result(ret);
+      break;
+    }
+    case js::jit::Args_Int64_GeneralInt64: {
+      int64_t ret =
+          reinterpret_cast<Prototype_Int64_GeneralInt64>(
+              nativeFn)(x0, x1);
+      setGPR64Result(ret);
+      break;
+    }
 
     default:
       MOZ_CRASH("Unknown function type.");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/CacheIRCompiler.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/CacheIRCompiler.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/CacheIRCompiler.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/CacheIRCompiler.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -6741,9 +6741,6 @@
   masm.jump(failure->label());
 
   masm.bind(&ok);
-  if (JitOptions.spectreJitToCxxCalls) {
-    masm.speculationBarrier();
-  }
   masm.setFramePushed(framePushed);
   masm.loadTypedOrValue(Address(masm.getStackPointer(), 0), output);
   masm.adjustStack(sizeof(Value));
@@ -7031,9 +7028,6 @@
   masm.adjustStack(sizeof(Value));
 
   masm.branchIfFalseBool(scratch2, failure->label());
-  if (JitOptions.spectreJitToCxxCalls) {
-    masm.speculationBarrier();
-  }
 
   return true;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/CodeGenerator.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/CodeGenerator.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/CodeGenerator.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/CodeGenerator.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -4218,10 +4218,6 @@
 
   masm.branchIfFalseBool(ReturnReg, &bail);
 
-  if (JitOptions.spectreJitToCxxCalls) {
-    masm.speculationBarrier();
-  }
-
   bailoutFrom(&bail, lir->snapshot());
 }
 
@@ -4259,9 +4255,6 @@
   masm.jump(&bail);
 
   masm.bind(&ok);
-  if (JitOptions.spectreJitToCxxCalls) {
-    masm.speculationBarrier();
-  }
   masm.popValue(output);
 
   bailoutFrom(&bail, lir->snapshot());
@@ -13088,19 +13081,22 @@
 
   masm.loadValue(BaseObjectElementIndex(elements, index), out);
 
-  // If a hole check is needed, and the value wasn't a hole, we're done.
-  // Otherwise, we'll load undefined.
-  if (lir->mir()->needsHoleCheck()) {
-    masm.branchTestMagic(Assembler::NotEqual, out, &done);
-    masm.moveValue(UndefinedValue(), out);
-  }
-  masm.jump(&done);
+  // If the value wasn't a hole, we're done. Otherwise, we'll load undefined.
+  masm.branchTestMagic(Assembler::NotEqual, out, &done);
 
-  masm.bind(&outOfBounds);
   if (mir->needsNegativeIntCheck()) {
+    Label loadUndefined;
+    masm.jump(&loadUndefined);
+
+    masm.bind(&outOfBounds);
+
     Label negative;
     masm.branch32(Assembler::LessThan, index, Imm32(0), &negative);
     bailoutFrom(&negative, lir->snapshot());
+
+    masm.bind(&loadUndefined);
+  } else {
+    masm.bind(&outOfBounds);
   }
   masm.moveValue(UndefinedValue(), out);
 
@@ -14851,14 +14847,9 @@
 void CodeGenerator::visitWasmBoundsCheck64(LWasmBoundsCheck64* ins) {
   const MWasmBoundsCheck* mir = ins->mir();
   Label ok;
-#ifdef JS_64BIT
   Register64 ptr = ToRegister64(ins->ptr());
   Register64 boundsCheckLimit = ToRegister64(ins->boundsCheckLimit());
   masm.wasmBoundsCheck64(Assembler::Below, ptr, boundsCheckLimit, &ok);
-#else
-  // 64-bit bounds checks are used only on 64-bit systems.
-  MOZ_CRASH("Should not happen");
-#endif
   masm.wasmTrap(wasm::Trap::OutOfBounds, mir->bytecodeOffset());
   masm.bind(&ok);
 }
@@ -14871,6 +14862,20 @@
   masm.wasmTrap(wasm::Trap::UnalignedAccess, mir->bytecodeOffset());
   masm.bind(&ok);
 }
+
+void CodeGenerator::visitWasmAlignmentCheck64(LWasmAlignmentCheck64* ins) {
+  const MWasmAlignmentCheck* mir = ins->mir();
+  Register64 ptr = ToRegister64(ins->ptr());
+#ifdef JS_64BIT
+  Register r = ptr.reg;
+#else
+  Register r = ptr.low;
+#endif
+  Label ok;
+  masm.branchTestPtr(Assembler::Zero, r, Imm32(mir->byteSize() - 1), &ok);
+  masm.wasmTrap(wasm::Trap::UnalignedAccess, mir->bytecodeOffset());
+  masm.bind(&ok);
+}
 
 void CodeGenerator::visitWasmLoadTls(LWasmLoadTls* ins) {
   switch (ins->mir()->type()) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/CodeGenerator.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/CodeGenerator.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/CodeGenerator.h	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/CodeGenerator.h	2021-10-20 19:28:23.000000000 +0000
@@ -234,15 +234,9 @@
                            const ConstantOrRegister& id,
                            const ConstantOrRegister& value, bool strict);
 
-  [[nodiscard]] bool generateBranchV(const ValueOperand& value, Label* ifTrue,
-                                     Label* ifFalse, FloatRegister fr);
-
   void emitLambdaInit(Register resultReg, Register envChainReg,
                       const LambdaFunctionInfo& info);
 
-  void emitFilterArgumentsOrEval(LInstruction* lir, Register string,
-                                 Register temp1, Register temp2);
-
   template <class IteratorObject, class OrderedHashTable>
   void emitGetNextEntryForIterator(LGetNextEntryForIterator* lir);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/EffectiveAddressAnalysis.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/EffectiveAddressAnalysis.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/EffectiveAddressAnalysis.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/EffectiveAddressAnalysis.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -199,8 +199,9 @@
   MDefinition* base = ins->base();
 
   if (base->isConstant()) {
-    // If the index is within the minimum heap length, we can optimize
-    // away the bounds check.
+    // If the index is within the minimum heap length, we can optimize away the
+    // bounds check.  Asm.js accesses always have an int32 base, the memory is
+    // always a memory32.
     int32_t imm = base->toConstant()->toInt32();
     if (imm >= 0) {
       int32_t end = (uint32_t)imm + ins->byteSize();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/IonTypes.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/IonTypes.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/IonTypes.h	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/IonTypes.h	2021-10-20 19:28:23.000000000 +0000
@@ -912,6 +912,31 @@
       ArgType_General, {ArgType_General, ArgType_Int32, ArgType_Int32}),
   Args_General_GeneralInt32General = detail::MakeABIFunctionType(
       ArgType_General, {ArgType_General, ArgType_Int32, ArgType_General}),
+  Args_Int32_GeneralInt64Int32Int32Int32 = detail::MakeABIFunctionType(
+      ArgType_Int32, {ArgType_General, ArgType_Int64, ArgType_Int32,
+                      ArgType_Int32, ArgType_Int32}),
+  Args_Int32_GeneralInt64Int32 = detail::MakeABIFunctionType(
+      ArgType_Int32, {ArgType_General, ArgType_Int64, ArgType_Int32}),
+  Args_Int32_GeneralInt64Int32Int64 = detail::MakeABIFunctionType(
+      ArgType_Int32,
+      {ArgType_General, ArgType_Int64, ArgType_Int32, ArgType_Int64}),
+  Args_Int32_GeneralInt64Int32Int64General = detail::MakeABIFunctionType(
+      ArgType_Int32, {ArgType_General, ArgType_Int64, ArgType_Int32,
+                      ArgType_Int64, ArgType_General}),
+  Args_Int32_GeneralInt64Int64Int64 = detail::MakeABIFunctionType(
+      ArgType_Int32,
+      {ArgType_General, ArgType_Int64, ArgType_Int64, ArgType_Int64}),
+  Args_Int32_GeneralInt64Int64Int64General = detail::MakeABIFunctionType(
+      ArgType_Int32, {ArgType_General, ArgType_Int64, ArgType_Int64,
+                      ArgType_Int64, ArgType_General}),
+
+  // Functions that return Int64 are tricky because SpiderMonkey's ReturnRegI64
+  // does not match the ABI int64 return register on x86.  Wasm only!
+  Args_Int64_General =
+      detail::MakeABIFunctionType(ArgType_Int64, {ArgType_General}),
+  Args_Int64_GeneralInt64 = detail::MakeABIFunctionType(
+      ArgType_Int64, {ArgType_General, ArgType_Int64}),
+
 };
 
 static constexpr ABIFunctionType MakeABIFunctionType(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/LIROps.yaml firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/LIROps.yaml
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/LIROps.yaml	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/LIROps.yaml	2021-10-20 19:28:23.000000000 +0000
@@ -2550,6 +2550,12 @@
     base: WordSized
   mir_op: true
 
+- name: WasmAddOffset64
+  result_type: Int64
+  operands:
+    base: Int64
+  mir_op: WasmAddOffset
+
 - name: WasmBoundsCheck
   result_type: WordSized
   operands:
@@ -2577,6 +2583,11 @@
     ptr: WordSized
   mir_op: true
 
+- name: WasmAlignmentCheck64
+  operands:
+    ptr: Int64
+  mir_op: WasmAlignmentCheck
+
 - name: WasmLoadTls
   result_type: WordSized
   operands:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/Lowering.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/Lowering.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/Lowering.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/Lowering.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -2499,6 +2499,9 @@
 
 void LIRGenerator::visitWasmExtendU32Index(MWasmExtendU32Index* ins) {
 #ifdef JS_64BIT
+  // Technically this produces an Int64 register and I guess we could clean that
+  // up, but it's a 64-bit only operation, so it doesn't actually matter.
+
   MDefinition* input = ins->input();
   MOZ_ASSERT(input->type() == MIRType::Int32);
   MOZ_ASSERT(ins->type() == MIRType::Int64);
@@ -2513,18 +2516,22 @@
 }
 
 void LIRGenerator::visitWasmWrapU32Index(MWasmWrapU32Index* ins) {
-#ifdef JS_64BIT
   MDefinition* input = ins->input();
   MOZ_ASSERT(input->type() == MIRType::Int64);
   MOZ_ASSERT(ins->type() == MIRType::Int32);
 
-  // Input reuse is OK even on ARM64 because this node *must* reuse its input in
-  // order not to generate any code at all, as is the intent.
+  // Tricky: On 64-bit, this just returns its input (except on MIPS64 there may
+  // be a sign/zero extension).  On 32-bit, it returns the low register of the
+  // input, and should generate no code.
+
+  // If this assertion does not hold then using "input" unadorned as an alias
+  // for the low register will not work.
+#if defined(JS_NUNBOX32)
+  static_assert(INT64LOW_INDEX == 0);
+#endif
+
   auto* lir = new (alloc()) LWasmWrapU32Index(useRegisterAtStart(input));
   defineReuseInput(lir, ins, 0);
-#else
-  MOZ_CRASH("64-bit only");
-#endif
 }
 
 void LIRGenerator::visitIntPtrToDouble(MIntPtrToDouble* ins) {
@@ -4797,10 +4804,23 @@
 }
 
 void LIRGenerator::visitWasmAddOffset(MWasmAddOffset* ins) {
-  MOZ_ASSERT(ins->base()->type() == MIRType::Int32);
-  MOZ_ASSERT(ins->type() == MIRType::Int32);
   MOZ_ASSERT(ins->offset());
-  define(new (alloc()) LWasmAddOffset(useRegisterAtStart(ins->base())), ins);
+  if (ins->base()->type() == MIRType::Int32) {
+    MOZ_ASSERT(ins->type() == MIRType::Int32);
+    define(new (alloc()) LWasmAddOffset(useRegisterAtStart(ins->base())), ins);
+  } else {
+    MOZ_ASSERT(ins->type() == MIRType::Int64);
+#ifdef JS_64BIT
+    defineInt64(new (alloc())
+                    LWasmAddOffset64(useInt64RegisterAtStart(ins->base())),
+                ins);
+#else
+    // Avoid situation where the input is (a,b) and the output is (b,a).
+    defineInt64ReuseInput(
+        new (alloc()) LWasmAddOffset64(useInt64RegisterAtStart(ins->base())),
+        ins, 0);
+#endif
+  }
 }
 
 void LIRGenerator::visitWasmLoadTls(MWasmLoadTls* ins) {
@@ -4856,10 +4876,14 @@
 
 void LIRGenerator::visitWasmAlignmentCheck(MWasmAlignmentCheck* ins) {
   MDefinition* index = ins->index();
-  MOZ_ASSERT(index->type() == MIRType::Int32);
-
-  auto* lir = new (alloc()) LWasmAlignmentCheck(useRegisterAtStart(index));
-  add(lir, ins);
+  if (index->type() == MIRType::Int64) {
+    auto* lir =
+        new (alloc()) LWasmAlignmentCheck64(useInt64RegisterAtStart(index));
+    add(lir, ins);
+  } else {
+    auto* lir = new (alloc()) LWasmAlignmentCheck(useRegisterAtStart(index));
+    add(lir, ins);
+  }
 }
 
 void LIRGenerator::visitWasmLoadGlobalVar(MWasmLoadGlobalVar* ins) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/MacroAssembler.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/MacroAssembler.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/MacroAssembler.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/MacroAssembler.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -4743,7 +4743,7 @@
 #ifdef JS_PUNBOX64
   auto r64 = Register64(temp);
   move64(value.toRegister64(), r64);
-  rshift64(Imm32(32), r64);
+  rshift64Arithmetic(Imm32(32), r64);
 #else
   // TODO: This seems like a bug in mozilla::detail::AddUintptrToHash().
   // The uint64_t input is first converted to uintptr_t and then back to
@@ -4837,7 +4837,7 @@
   // |BigInt::hash()|.
 
   // Inline implementation of |mozilla::AddU32ToHash()|.
-  auto addU32ToHash = [&](Register toAdd) {
+  auto addU32ToHash = [&](auto toAdd) {
     rotateLeft(Imm32(5), result, result);
     xor32(toAdd, result);
     mul32(Imm32(mozilla::kGoldenRatioU32), result);
@@ -4854,19 +4854,26 @@
   jump(&start);
   bind(&loop);
 
-  loadPtr(Address(temp2, 0), temp3);
   {
     // Compute |AddToHash(AddToHash(hash, data), sizeof(Digit))|.
+#if defined(JS_CODEGEN_MIPS64)
+    // Hash the lower 32-bits.
+    addU32ToHash(Address(temp2, 0));
+
+    // Hash the upper 32-bits.
+    addU32ToHash(Address(temp2, sizeof(int32_t)));
+#elif JS_PUNBOX64
+    // Use a single 64-bit load on non-MIPS64 platforms.
+    loadPtr(Address(temp2, 0), temp3);
 
-#if JS_PUNBOX64
     // Hash the lower 32-bits.
     addU32ToHash(temp3);
 
     // Hash the upper 32-bits.
-    rshift64(Imm32(32), Register64(temp3));
+    rshiftPtr(Imm32(32), temp3);
     addU32ToHash(temp3);
 #else
-    addU32ToHash(temp3);
+    addU32ToHash(Address(temp2, 0));
 #endif
   }
   addPtr(Imm32(sizeof(BigInt::Digit)), temp2);
@@ -4911,7 +4918,7 @@
 
   // Hash numbers are 32-bit values, so only hash the lower double-word.
   static_assert(sizeof(mozilla::HashNumber) == 4);
-  move64To32(value.toRegister64(), result);
+  move32To64ZeroExtend(value.valueReg(), Register64(result));
 
   // Inline implementation of |SipHasher::sipHash()|.
   auto m = Register64(result);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/MacroAssembler.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/MacroAssembler.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/MacroAssembler.h	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/MacroAssembler.h	2021-10-20 19:28:23.000000000 +0000
@@ -1549,6 +1549,9 @@
   inline void branchNeg32(Condition cond, Register reg,
                           Label* label) PER_SHARED_ARCH;
 
+  inline void branchAdd64(Condition cond, Imm32 imm, Register64 dest,
+                          Label* label) DEFINED_ON(x86, arm);
+
   template <typename T>
   inline void branchAddPtr(Condition cond, T src, Register dest,
                            Label* label) PER_SHARED_ARCH;
@@ -3641,7 +3644,7 @@
   std::pair<CodeOffset, uint32_t> wasmReserveStackChecked(
       uint32_t amount, wasm::BytecodeOffset trapOffset);
 
-  // Emit a bounds check against the wasm heap limit, jumping to 'label' if
+  // Emit a bounds check against the wasm heap limit, jumping to 'ok' if
   // 'cond' holds. If JitOptions.spectreMaskIndex is true, in speculative
   // executions 'index' is saturated in-place to 'boundsCheckLimit'.
   //
@@ -3651,20 +3654,20 @@
   // limited to something much larger.
 
   void wasmBoundsCheck32(Condition cond, Register index,
-                         Register boundsCheckLimit, Label* label)
+                         Register boundsCheckLimit, Label* ok)
       DEFINED_ON(arm, arm64, mips32, mips64, x86_shared);
 
   void wasmBoundsCheck32(Condition cond, Register index,
-                         Address boundsCheckLimit, Label* label)
+                         Address boundsCheckLimit, Label* ok)
       DEFINED_ON(arm, arm64, mips32, mips64, x86_shared);
 
   void wasmBoundsCheck64(Condition cond, Register64 index,
-                         Register64 boundsCheckLimit, Label* label)
-      DEFINED_ON(arm64, mips64, x64);
+                         Register64 boundsCheckLimit, Label* ok)
+      DEFINED_ON(arm64, mips64, x64, x86, arm);
 
   void wasmBoundsCheck64(Condition cond, Register64 index,
-                         Address boundsCheckLimit, Label* label)
-      DEFINED_ON(arm64, mips64, x64);
+                         Address boundsCheckLimit, Label* ok)
+      DEFINED_ON(arm64, mips64, x64, x86, arm);
 
   // Each wasm load/store instruction appends its own wasm::Trap::OutOfBounds.
   void wasmLoad(const wasm::MemoryAccessDesc& access, Operand srcAddr,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/mips32/MacroAssembler-mips32.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/mips32/MacroAssembler-mips32.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/mips32/MacroAssembler-mips32.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/mips32/MacroAssembler-mips32.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -2302,16 +2302,15 @@
 void MacroAssembler::PushBoxed(FloatRegister reg) { Push(reg); }
 
 void MacroAssembler::wasmBoundsCheck32(Condition cond, Register index,
-                                       Register boundsCheckLimit,
-                                       Label* label) {
-  ma_b(index, boundsCheckLimit, label, cond);
+                                       Register boundsCheckLimit, Label* ok) {
+  ma_b(index, boundsCheckLimit, ok, cond);
 }
 
 void MacroAssembler::wasmBoundsCheck32(Condition cond, Register index,
-                                       Address boundsCheckLimit, Label* label) {
+                                       Address boundsCheckLimit, Label* ok) {
   SecondScratchRegisterScope scratch2(*this);
   load32(boundsCheckLimit, SecondScratchReg);
-  ma_b(index, SecondScratchReg, label, cond);
+  ma_b(index, SecondScratchReg, ok, cond);
 }
 
 void MacroAssembler::wasmTruncateDoubleToUInt32(FloatRegister input,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/mips64/MacroAssembler-mips64.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/mips64/MacroAssembler-mips64.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/mips64/MacroAssembler-mips64.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/mips64/MacroAssembler-mips64.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -2267,26 +2267,24 @@
 }
 
 void MacroAssembler::wasmBoundsCheck32(Condition cond, Register index,
-                                       Register boundsCheckLimit,
-                                       Label* label) {
-  ma_b(index, boundsCheckLimit, label, cond);
+                                       Register boundsCheckLimit, Label* ok) {
+  ma_b(index, boundsCheckLimit, ok, cond);
 }
 
 void MacroAssembler::wasmBoundsCheck32(Condition cond, Register index,
-                                       Address boundsCheckLimit, Label* label) {
+                                       Address boundsCheckLimit, Label* ok) {
   SecondScratchRegisterScope scratch2(*this);
   load32(boundsCheckLimit, SecondScratchReg);
-  ma_b(index, SecondScratchReg, label, cond);
+  ma_b(index, SecondScratchReg, ok, cond);
 }
 
 void MacroAssembler::wasmBoundsCheck64(Condition cond, Register64 index,
-                                       Register64 boundsCheckLimit,
-                                       Label* label) {
+                                       Register64 boundsCheckLimit, Label* ok) {
   MOZ_CRASH("IMPLEMENTME");
 }
 
 void MacroAssembler::wasmBoundsCheck64(Condition cond, Register64 index,
-                                       Address boundsCheckLimit, Label* label) {
+                                       Address boundsCheckLimit, Label* ok) {
   MOZ_CRASH("IMPLEMENTME");
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/mips64/Simulator-mips64.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/mips64/Simulator-mips64.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/mips64/Simulator-mips64.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/mips64/Simulator-mips64.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -1981,11 +1981,25 @@
                                                          int64_t);
 typedef int32_t (*Prototype_Int32_GeneralGeneralInt32Int32)(int64_t, int64_t,
                                                             int32_t, int32_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32Int32Int32)(int64_t, int64_t,
+                                                               int32_t, int32_t,
+                                                               int32_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32)(int64_t, int64_t, int32_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32Int64)(int64_t, int64_t,
+                                                          int32_t, int64_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int32Int64General)(
+    int64_t, int64_t, int32_t, int64_t, int64_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int64Int64)(int64_t, int64_t,
+                                                          int64_t, int64_t);
+typedef int32_t (*Prototype_Int32_GeneralInt64Int64Int64General)(
+    int64_t, int64_t, int64_t, int64_t, int64_t);
 typedef int64_t (*Prototype_General_GeneralInt32)(int64_t, int32_t);
 typedef int64_t (*Prototype_General_GeneralInt32Int32)(int64_t, int32_t,
                                                        int32_t);
 typedef int64_t (*Prototype_General_GeneralInt32General)(int64_t, int32_t,
                                                          int64_t);
+typedef int64_t (*Prototype_Int64_General)(int64_t);
+typedef int64_t (*Prototype_Int64_GeneralInt64)(int64_t, int64_t);
 
 // Software interrupt instructions are used by the simulator to call into C++.
 void Simulator::softwareInterrupt(SimInstruction* instr) {
@@ -2051,7 +2065,7 @@
         Prototype_General3 target =
             reinterpret_cast<Prototype_General3>(external);
         int64_t result = target(arg0, arg1, arg2);
-        if (external == intptr_t(&js::wasm::Instance::wake)) {
+        if (external == intptr_t(&js::wasm::Instance::wake_m32)) {
           result = int32_t(result);
         }
         setCallResult(result);
@@ -2117,7 +2131,7 @@
         Prototype_GeneralGeneralGeneralInt64 target =
             reinterpret_cast<Prototype_GeneralGeneralGeneralInt64>(external);
         int64_t result = target(arg0, arg1, arg2, arg3);
-        if (external == intptr_t(&js::wasm::Instance::wait_i32)) {
+        if (external == intptr_t(&js::wasm::Instance::wait_i32_m32)) {
           result = int32_t(result);
         }
         setRegister(v0, result);
@@ -2127,7 +2141,7 @@
         Prototype_GeneralGeneralInt64Int64 target =
             reinterpret_cast<Prototype_GeneralGeneralInt64Int64>(external);
         int64_t result = target(arg0, arg1, arg2, arg3);
-        if (external == intptr_t(&js::wasm::Instance::wait_i64)) {
+        if (external == intptr_t(&js::wasm::Instance::wait_i64_m32)) {
           result = int32_t(result);
         }
         setRegister(v0, result);
@@ -2347,6 +2361,45 @@
         setRegister(v0, I64(ret));
         break;
       }
+      case js::jit::Args_Int32_GeneralInt64Int32Int32Int32: {
+        int32_t ret =
+            reinterpret_cast<Prototype_Int32_GeneralInt64Int32Int32Int32>(
+                nativeFn)(arg0, arg1, I32(arg2), I32(arg3), I32(arg4));
+        setRegister(v0, I64(ret));
+        break;
+      }
+      case js::jit::Args_Int32_GeneralInt64Int32: {
+        int32_t ret = reinterpret_cast<Prototype_Int32_GeneralInt64Int32>(
+            nativeFn)(arg0, arg1, I32(arg2));
+        setRegister(v0, I64(ret));
+        break;
+      }
+      case js::jit::Args_Int32_GeneralInt64Int32Int64: {
+        int32_t ret = reinterpret_cast<Prototype_Int32_GeneralInt64Int32Int64>(
+            nativeFn)(arg0, arg1, I32(arg2), arg3);
+        setRegister(v0, I64(ret));
+        break;
+      }
+      case js::jit::Args_Int32_GeneralInt64Int32Int64General: {
+        int32_t ret =
+            reinterpret_cast<Prototype_Int32_GeneralInt64Int32Int64General>(
+                nativeFn)(arg0, arg1, I32(arg2), arg3, arg4);
+        setRegister(v0, I64(ret));
+        break;
+      }
+      case js::jit::Args_Int32_GeneralInt64Int64Int64: {
+        int32_t ret = reinterpret_cast<Prototype_Int32_GeneralInt64Int64Int64>(
+            nativeFn)(arg0, arg1, arg2, arg3);
+        setRegister(v0, I64(ret));
+        break;
+      }
+      case js::jit::Args_Int32_GeneralInt64Int64Int64General: {
+        int32_t ret =
+            reinterpret_cast<Prototype_Int32_GeneralInt64Int64Int64General>(
+                nativeFn)(arg0, arg1, arg2, arg3, arg4);
+        setRegister(v0, I64(ret));
+        break;
+      }
       case Args_General_GeneralInt32: {
         int64_t ret = reinterpret_cast<Prototype_General_GeneralInt32>(
             nativeFn)(arg0, I32(arg1));
@@ -2365,7 +2418,17 @@
         setRegister(v0, ret);
         break;
       }
-
+      case js::jit::Args_Int64_General: {
+        int64_t ret = reinterpret_cast<Prototype_Int64_General>(nativeFn)(arg0);
+        setRegister(v0, ret);
+        break;
+      }
+      case js::jit::Args_Int64_GeneralInt64: {
+        int64_t ret = reinterpret_cast<Prototype_Int64_GeneralInt64>(nativeFn)(
+            arg0, arg1);
+        setRegister(v0, ret);
+        break;
+      }
       default:
         MOZ_CRASH("Unknown function type.");
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/mips-shared/CodeGenerator-mips-shared.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/mips-shared/CodeGenerator-mips-shared.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/mips-shared/CodeGenerator-mips-shared.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/mips-shared/CodeGenerator-mips-shared.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -2071,6 +2071,10 @@
   masm.bind(&ok);
 }
 
+void CodeGenerator::visitWasmAddOffset64(LWasmAddOffset64* lir) {
+  MOZ_CRASH("NYI");
+}
+
 void CodeGenerator::visitAtomicTypedArrayElementBinop(
     LAtomicTypedArrayElementBinop* lir) {
   MOZ_ASSERT(!lir->mir()->isForEffect());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/MIR.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/MIR.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/MIR.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/MIR.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -1385,6 +1385,8 @@
 }
 #endif
 
+AliasSet MRandom::getAliasSet() const { return AliasSet::Store(AliasSet::RNG); }
+
 MDefinition* MSign::foldsTo(TempAllocator& alloc) {
   MDefinition* input = getOperand(0);
   if (!input->isConstant() ||
@@ -4452,15 +4454,14 @@
   return true;
 }
 
-bool MObjectState::initFromTemplateObject(TempAllocator& alloc,
+void MObjectState::initFromTemplateObject(TempAllocator& alloc,
                                           MDefinition* undefinedVal) {
   if (object()->isNewPlainObject()) {
     MOZ_ASSERT(object()->toNewPlainObject()->shape()->slotSpan() == numSlots());
     for (size_t i = 0; i < numSlots(); i++) {
       initSlot(i, undefinedVal);
     }
-
-    return true;
+    return;
   }
 
   JSObject* templateObject = templateObjectOf(object());
@@ -4484,8 +4485,6 @@
     }
     initSlot(i, def);
   }
-
-  return true;
 }
 
 MObjectState* MObjectState::New(TempAllocator& alloc, MDefinition* obj) {
@@ -4539,12 +4538,11 @@
   return true;
 }
 
-bool MArrayState::initFromTemplateObject(TempAllocator& alloc,
+void MArrayState::initFromTemplateObject(TempAllocator& alloc,
                                          MDefinition* undefinedVal) {
   for (size_t i = 0; i < numElements(); i++) {
     initElement(i, undefinedVal);
   }
-  return true;
 }
 
 MArrayState* MArrayState::New(TempAllocator& alloc, MDefinition* arr,
@@ -4650,16 +4648,22 @@
     return this;
   }
 
-  MOZ_ASSERT(baseArg->type() == MIRType::Int32);
-  CheckedInt<uint32_t> ptr = baseArg->toConstant()->toInt32();
+  if (baseArg->type() == MIRType::Int32) {
+    CheckedInt<uint32_t> ptr = baseArg->toConstant()->toInt32();
+    ptr += offset();
+    if (!ptr.isValid()) {
+      return this;
+    }
+    return MConstant::New(alloc, Int32Value(ptr.value()));
+  }
 
+  MOZ_ASSERT(baseArg->type() == MIRType::Int64);
+  CheckedInt<uint64_t> ptr = baseArg->toConstant()->toInt64();
   ptr += offset();
-
   if (!ptr.isValid()) {
     return this;
   }
-
-  return MConstant::New(alloc, Int32Value(ptr.value()));
+  return MConstant::NewInt64(alloc, ptr.value());
 }
 
 bool MWasmAlignmentCheck::congruentTo(const MDefinition* ins) const {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/MIR.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/MIR.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/MIR.h	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/MIR.h	2021-10-20 19:28:23.000000000 +0000
@@ -349,10 +349,13 @@
     // Hash table of a Map or Set object.
     MapOrSetHashTable = 1 << 15,
 
-    Last = MapOrSetHashTable,
+    // Internal state of the random number generator
+    RNG = 1 << 16,
+
+    Last = RNG,
     Any = Last | (Last - 1),
 
-    NumCategories = 16,
+    NumCategories = 17,
 
     // Indicates load or store.
     Store_ = 1 << 31
@@ -2027,8 +2030,7 @@
 
   // As we might do read of uninitialized properties, we have to copy the
   // initial values from the template object.
-  [[nodiscard]] bool initFromTemplateObject(TempAllocator& alloc,
-                                            MDefinition* undefinedVal);
+  void initFromTemplateObject(TempAllocator& alloc, MDefinition* undefinedVal);
 
   size_t numFixedSlots() const { return numFixedSlots_; }
   size_t numSlots() const { return numSlots_; }
@@ -2089,8 +2091,7 @@
                           MDefinition* initLength);
   static MArrayState* Copy(TempAllocator& alloc, MArrayState* state);
 
-  [[nodiscard]] bool initFromTemplateObject(TempAllocator& alloc,
-                                            MDefinition* undefinedVal);
+  void initFromTemplateObject(TempAllocator& alloc, MDefinition* undefinedVal);
 
   void setInitializedLength(MDefinition* def) { replaceOperand(1, def); }
 
@@ -6537,14 +6538,11 @@
 // Load a value from the elements vector of a native object. If the index is
 // out-of-bounds, or the indexed slot has a hole, undefined is returned instead.
 class MLoadElementHole : public MTernaryInstruction, public NoTypePolicy::Data {
-  bool needsNegativeIntCheck_;
-  bool needsHoleCheck_;
+  bool needsNegativeIntCheck_ = true;
 
   MLoadElementHole(MDefinition* elements, MDefinition* index,
-                   MDefinition* initLength, bool needsHoleCheck)
-      : MTernaryInstruction(classOpcode, elements, index, initLength),
-        needsNegativeIntCheck_(true),
-        needsHoleCheck_(needsHoleCheck) {
+                   MDefinition* initLength)
+      : MTernaryInstruction(classOpcode, elements, index, initLength) {
     setResultType(MIRType::Value);
     setMovable();
 
@@ -6564,15 +6562,11 @@
   NAMED_OPERANDS((0, elements), (1, index), (2, initLength))
 
   bool needsNegativeIntCheck() const { return needsNegativeIntCheck_; }
-  bool needsHoleCheck() const { return needsHoleCheck_; }
   bool congruentTo(const MDefinition* ins) const override {
     if (!ins->isLoadElementHole()) {
       return false;
     }
     const MLoadElementHole* other = ins->toLoadElementHole();
-    if (needsHoleCheck() != other->needsHoleCheck()) {
-      return false;
-    }
     if (needsNegativeIntCheck() != other->needsNegativeIntCheck()) {
       return false;
     }
@@ -9006,13 +9000,14 @@
   AliasSet getAliasSet() const override { return aliases_; }
 };
 
-// Bounds check nodes are of type Int32 on 32-bit systems for both wasm and
-// asm.js code, as well as on 64-bit systems for asm.js code and for wasm code
-// that is known to have a bounds check limit that fits into 32 bits.  They are
-// of type Int64 only on 64-bit systems for wasm code with 4GB (or larger)
-// heaps.  There is no way for nodes of both types to be present in the same
-// function.  Should this change, then BCE must be updated to take type into
-// account.
+// For memory32, bounds check nodes are of type Int32 on 32-bit systems for both
+// wasm and asm.js code, as well as on 64-bit systems for asm.js code and for
+// wasm code that is known to have a bounds check limit that fits into 32 bits.
+// They are of type Int64 only on 64-bit systems for wasm code with 4GB heaps.
+// There is no way for nodes of both types to be present in the same function.
+// Should this change, then BCE must be updated to take type into account.
+//
+// For memory64, bounds check nodes are always of type Int64.
 
 class MWasmBoundsCheck : public MBinaryInstruction, public NoTypePolicy::Data {
   wasm::BytecodeOffset bytecodeOffset_;
@@ -9021,6 +9016,8 @@
                             wasm::BytecodeOffset bytecodeOffset)
       : MBinaryInstruction(classOpcode, index, boundsCheckLimit),
         bytecodeOffset_(bytecodeOffset) {
+    MOZ_ASSERT(index->type() == boundsCheckLimit->type());
+
     // Bounds check is effectful: it throws for OOB.
     setGuard();
 
@@ -9053,7 +9050,9 @@
         offset_(offset),
         bytecodeOffset_(bytecodeOffset) {
     setGuard();
-    setResultType(MIRType::Int32);
+    MOZ_ASSERT(base->type() == MIRType::Int32 ||
+               base->type() == MIRType::Int64);
+    setResultType(base->type());
   }
 
  public:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/MIROps.yaml firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/MIROps.yaml
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/MIROps.yaml	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/MIROps.yaml	2021-10-20 19:28:24.000000000 +0000
@@ -669,7 +669,7 @@
 
 - name: Random
   result_type: Double
-  alias_set: none
+  alias_set: custom
   possibly_calls: true
   compute_range: custom
   can_recover: custom
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/ScalarReplacement.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/ScalarReplacement.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/ScalarReplacement.cpp	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/ScalarReplacement.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -328,9 +328,6 @@
   void visitLambda(MLambda* ins);
   void visitLambdaArrow(MLambdaArrow* ins);
   void visitFunctionWithProto(MFunctionWithProto* ins);
-
- private:
-  void visitObjectGuard(MInstruction* ins, MDefinition* operand);
 };
 
 /* static */ const char ObjectMemoryView::phaseName[] =
@@ -369,9 +366,7 @@
   startBlock_->insertAfter(obj_, state);
 
   // Initialize the properties of the object state.
-  if (!state->initFromTemplateObject(alloc_, undefinedVal_)) {
-    return false;
-  }
+  state->initFromTemplateObject(alloc_, undefinedVal_);
 
   // Hold out of resume point until it is visited.
   state->setInWorklist();
@@ -622,14 +617,9 @@
   ins->block()->discard(ins);
 }
 
-void ObjectMemoryView::visitObjectGuard(MInstruction* ins,
-                                        MDefinition* operand) {
-  MOZ_ASSERT(ins->numOperands() == 1);
-  MOZ_ASSERT(ins->getOperand(0) == operand);
-  MOZ_ASSERT(ins->type() == MIRType::Object);
-
+void ObjectMemoryView::visitGuardShape(MGuardShape* ins) {
   // Skip guards on other objects.
-  if (operand != obj_) {
+  if (ins->object() != obj_) {
     return;
   }
 
@@ -640,10 +630,6 @@
   ins->block()->discard(ins);
 }
 
-void ObjectMemoryView::visitGuardShape(MGuardShape* ins) {
-  visitObjectGuard(ins, ins->object());
-}
-
 void ObjectMemoryView::visitCheckIsObj(MCheckIsObj* ins) {
   // Skip checks on other objects.
   if (ins->input() != obj_) {
@@ -1052,9 +1038,7 @@
   startBlock_->insertAfter(arr_, state);
 
   // Initialize the elements of the array state.
-  if (!state->initFromTemplateObject(alloc_, undefinedVal_)) {
-    return false;
-  }
+  state->initFromTemplateObject(alloc_, undefinedVal_);
 
   // Hold out of resume point until it is visited.
   state->setInWorklist();
@@ -1512,20 +1496,17 @@
     // Iterates over phis and instructions.
     // We do not have to visit resume points. Any resume points that capture
     // the argument object will be handled by the Sink pass.
-    for (MNodeIterator iter(*block); iter;) {
+    for (MDefinitionIterator iter(*block); iter;) {
       // Increment the iterator before visiting the instruction, as the
       // visit function might discard itself from the basic block.
-      MNode* ins = *iter++;
-      if (ins->isDefinition()) {
-        MDefinition* def = ins->toDefinition();
-        switch (def->op()) {
+      MDefinition* def = *iter++;
+      switch (def->op()) {
 #define MIR_OP(op)              \
   case MDefinition::Opcode::op: \
     visit##op(def->to##op());   \
     break;
-          MIR_OPCODE_LIST(MIR_OP)
+        MIR_OPCODE_LIST(MIR_OP)
 #undef MIR_OP
-        }
       }
     }
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/shared/IonAssemblerBufferWithConstantPools.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/shared/IonAssemblerBufferWithConstantPools.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/shared/IonAssemblerBufferWithConstantPools.h	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/shared/IonAssemblerBufferWithConstantPools.h	2021-10-20 19:28:24.000000000 +0000
@@ -1083,6 +1083,9 @@
       JitSpew(JitSpew_Pools, "[%d] No-Pool instruction(%zu) caused a spill.",
               id, sizeExcludingCurrentPool());
       finishPool(maxInst * InstSize);
+      if (this->oom()) {
+        return;
+      }
       MOZ_ASSERT(hasSpaceForInsts(maxInst, 0));
     }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/shared/LIR-shared.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/shared/LIR-shared.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/shared/LIR-shared.h	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/shared/LIR-shared.h	2021-10-20 19:28:24.000000000 +0000
@@ -1868,10 +1868,6 @@
     setOperand(2, initLength);
   }
 
-  const char* extraName() const {
-    return mir()->needsHoleCheck() ? "HoleCheck" : nullptr;
-  }
-
   const MLoadElementHole* mir() const { return mir_->toLoadElementHole(); }
   const LAllocation* elements() { return getOperand(0); }
   const LAllocation* index() { return getOperand(1); }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/WarpCacheIRTranspiler.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/WarpCacheIRTranspiler.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/WarpCacheIRTranspiler.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/WarpCacheIRTranspiler.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -1741,9 +1741,7 @@
   auto* length = MInitializedLength::New(alloc(), elements);
   add(length);
 
-  bool needsHoleCheck = true;
-  auto* load =
-      MLoadElementHole::New(alloc(), elements, index, length, needsHoleCheck);
+  auto* load = MLoadElementHole::New(alloc(), elements, index, length);
   add(load);
 
   pushResult(load);
@@ -2821,10 +2819,10 @@
 #endif
 
   auto* ins = MRandom::New(alloc());
-  add(ins);
+  addEffectful(ins);
 
   pushResult(ins);
-  return true;
+  return resumeAfter(ins);
 }
 
 bool WarpCacheIRTranspiler::emitInt32MinMax(bool isMax, Int32OperandId firstId,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x64/CodeGenerator-x64.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x64/CodeGenerator-x64.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x64/CodeGenerator-x64.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x64/CodeGenerator-x64.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -564,6 +564,8 @@
   uint32_t offset = mir->access().offset();
   MOZ_ASSERT(offset < masm.wasmMaxOffsetGuardLimit());
 
+  // ptr is a GPR and is either a 32-bit value zero-extended to 64-bit, or a
+  // true 64-bit value.
   const LAllocation* ptr = ins->ptr();
   Operand srcAddr = ptr->isBogus()
                         ? Operand(HeapReg, offset)
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x64/Lowering-x64.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x64/Lowering-x64.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x64/Lowering-x64.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x64/Lowering-x64.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -262,7 +262,9 @@
 
 void LIRGenerator::visitWasmLoad(MWasmLoad* ins) {
   MDefinition* base = ins->base();
-  MOZ_ASSERT(base->type() == MIRType::Int32);
+  // 'base' is a GPR but may be of either type.  If it is 32-bit it is
+  // zero-extended and can act as 64-bit.
+  MOZ_ASSERT(base->type() == MIRType::Int32 || base->type() == MIRType::Int64);
 
   if (ins->type() != MIRType::Int64) {
     auto* lir = new (alloc()) LWasmLoad(useRegisterOrZeroAtStart(base));
@@ -276,7 +278,8 @@
 
 void LIRGenerator::visitWasmStore(MWasmStore* ins) {
   MDefinition* base = ins->base();
-  MOZ_ASSERT(base->type() == MIRType::Int32);
+  // See comment in visitWasmLoad re the type of 'base'.
+  MOZ_ASSERT(base->type() == MIRType::Int32 || base->type() == MIRType::Int64);
 
   MDefinition* value = ins->value();
   LAllocation valueAlloc;
@@ -322,7 +325,8 @@
 
 void LIRGenerator::visitWasmCompareExchangeHeap(MWasmCompareExchangeHeap* ins) {
   MDefinition* base = ins->base();
-  MOZ_ASSERT(base->type() == MIRType::Int32);
+  // See comment in visitWasmLoad re the type of 'base'.
+  MOZ_ASSERT(base->type() == MIRType::Int32 || base->type() == MIRType::Int64);
 
   // The output may not be used but will be clobbered regardless, so
   // pin the output to eax.
@@ -339,7 +343,9 @@
 }
 
 void LIRGenerator::visitWasmAtomicExchangeHeap(MWasmAtomicExchangeHeap* ins) {
-  MOZ_ASSERT(ins->base()->type() == MIRType::Int32);
+  // See comment in visitWasmLoad re the type of 'base'.
+  MOZ_ASSERT(ins->base()->type() == MIRType::Int32 ||
+             ins->base()->type() == MIRType::Int64);
 
   const LAllocation base = useRegister(ins->base());
   const LAllocation value = useRegister(ins->value());
@@ -355,7 +361,8 @@
 
 void LIRGenerator::visitWasmAtomicBinopHeap(MWasmAtomicBinopHeap* ins) {
   MDefinition* base = ins->base();
-  MOZ_ASSERT(base->type() == MIRType::Int32);
+  // See comment in visitWasmLoad re the type of 'base'.
+  MOZ_ASSERT(base->type() == MIRType::Int32 || base->type() == MIRType::Int64);
 
   // No support for 64-bit operations with constants at the masm level.
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x64/MacroAssembler-x64.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x64/MacroAssembler-x64.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x64/MacroAssembler-x64.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x64/MacroAssembler-x64.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -1494,19 +1494,18 @@
 }
 
 void MacroAssembler::wasmBoundsCheck64(Condition cond, Register64 index,
-                                       Register64 boundsCheckLimit,
-                                       Label* label) {
+                                       Register64 boundsCheckLimit, Label* ok) {
   cmpPtr(index.reg, boundsCheckLimit.reg);
-  j(cond, label);
+  j(cond, ok);
   if (JitOptions.spectreIndexMasking) {
     cmovCCq(cond, Operand(boundsCheckLimit.reg), index.reg);
   }
 }
 
 void MacroAssembler::wasmBoundsCheck64(Condition cond, Register64 index,
-                                       Address boundsCheckLimit, Label* label) {
+                                       Address boundsCheckLimit, Label* ok) {
   cmpPtr(index.reg, Operand(boundsCheckLimit));
-  j(cond, label);
+  j(cond, ok);
   if (JitOptions.spectreIndexMasking) {
     cmovCCq(cond, Operand(boundsCheckLimit), index.reg);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86/CodeGenerator-x86.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86/CodeGenerator-x86.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86/CodeGenerator-x86.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86/CodeGenerator-x86.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -1361,8 +1361,10 @@
   MOZ_CRASH("64-bit only");
 }
 
-void CodeGenerator::visitWasmWrapU32Index(LWasmWrapU32Index*) {
-  MOZ_CRASH("64-bit only");
+void CodeGenerator::visitWasmWrapU32Index(LWasmWrapU32Index* lir) {
+  // Generates no code on this platform because we just return the low part of
+  // the input register pair.
+  MOZ_ASSERT(ToRegister(lir->input()) == ToRegister(lir->output()));
 }
 
 void CodeGenerator::visitClzI64(LClzI64* lir) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86/MacroAssembler-x86.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86/MacroAssembler-x86.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86/MacroAssembler-x86.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86/MacroAssembler-x86.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -1729,4 +1729,22 @@
   PatchDataWithValueCheck(loc, ImmPtr(target.raw()), ImmPtr(nullptr));
 }
 
+void MacroAssembler::wasmBoundsCheck64(Condition cond, Register64 index,
+                                       Register64 boundsCheckLimit, Label* ok) {
+  Label notOk;
+  cmp32(index.high, Imm32(0));
+  j(Assembler::NonZero, &notOk);
+  wasmBoundsCheck32(cond, index.low, boundsCheckLimit.low, ok);
+  bind(&notOk);
+}
+
+void MacroAssembler::wasmBoundsCheck64(Condition cond, Register64 index,
+                                       Address boundsCheckLimit, Label* ok) {
+  Label notOk;
+  cmp32(index.high, Imm32(0));
+  j(Assembler::NonZero, &notOk);
+  wasmBoundsCheck32(cond, index.low, boundsCheckLimit, ok);
+  bind(&notOk);
+}
+
 //}}} check_macroassembler_style
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86/MacroAssembler-x86-inl.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86/MacroAssembler-x86-inl.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86/MacroAssembler-x86-inl.h	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86/MacroAssembler-x86-inl.h	2021-10-20 19:28:23.000000000 +0000
@@ -962,6 +962,12 @@
   j(Assembler::Overflow, fail);
 }
 
+void MacroAssembler::branchAdd64(Condition cond, Imm32 imm, Register64 dest,
+                                 Label* label) {
+  add64(imm, dest);
+  j(cond, label);
+}
+
 void MacroAssembler::branchTest32(Condition cond, const AbsoluteAddress& lhs,
                                   Imm32 rhs, Label* label) {
   test32(Operand(lhs), rhs);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86-shared/CodeGenerator-x86-shared.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86-shared/CodeGenerator-x86-shared.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86-shared/CodeGenerator-x86-shared.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86-shared/CodeGenerator-x86-shared.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -481,6 +481,22 @@
   masm.bind(&ok);
 }
 
+void CodeGenerator::visitWasmAddOffset64(LWasmAddOffset64* lir) {
+  MWasmAddOffset* mir = lir->mir();
+  Register64 base = ToRegister64(lir->base());
+  Register64 out = ToOutRegister64(lir);
+
+  if (base != out) {
+    masm.move64(base, out);
+  }
+  masm.add64(Imm64(mir->offset()), out);
+
+  Label ok;
+  masm.j(Assembler::CarryClear, &ok);
+  masm.wasmTrap(wasm::Trap::OutOfBounds, mir->bytecodeOffset());
+  masm.bind(&ok);
+}
+
 void CodeGenerator::visitWasmTruncateToInt32(LWasmTruncateToInt32* lir) {
   FloatRegister input = ToFloatRegister(lir->input());
   Register output = ToRegister(lir->output());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86-shared/Lowering-x86-shared.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86-shared/Lowering-x86-shared.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86-shared/Lowering-x86-shared.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86-shared/Lowering-x86-shared.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -1476,6 +1476,13 @@
 
 void LIRGenerator::visitWasmLoadLaneSimd128(MWasmLoadLaneSimd128* ins) {
 #ifdef ENABLE_WASM_SIMD
+  // A trick: On 32-bit systems, the base pointer is 32 bits (it was bounds
+  // checked and then chopped).  On 64-bit systems, it can be 32 bits or 64
+  // bits.  Either way, it fits in a GPR so we can ignore the
+  // Register/Register64 distinction here.
+#  ifndef JS_64BIT
+  MOZ_ASSERT(ins->base()->type() == MIRType::Int32);
+#  endif
   LUse base = useRegisterAtStart(ins->base());
   LUse inputUse = useRegisterAtStart(ins->value());
   LAllocation memoryBase = ins->hasMemoryBase()
@@ -1491,6 +1498,10 @@
 
 void LIRGenerator::visitWasmStoreLaneSimd128(MWasmStoreLaneSimd128* ins) {
 #ifdef ENABLE_WASM_SIMD
+  // See comment above.
+#  ifndef JS_64BIT
+  MOZ_ASSERT(ins->base()->type() == MIRType::Int32);
+#  endif
   LUse base = useRegisterAtStart(ins->base());
   LUse input = useRegisterAtStart(ins->value());
   LAllocation memoryBase = ins->hasMemoryBase()
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86-shared/MacroAssembler-x86-shared.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86-shared/MacroAssembler-x86-shared.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86-shared/MacroAssembler-x86-shared.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86-shared/MacroAssembler-x86-shared.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -705,19 +705,18 @@
 CodeOffset MacroAssembler::wasmTrapInstruction() { return ud2(); }
 
 void MacroAssembler::wasmBoundsCheck32(Condition cond, Register index,
-                                       Register boundsCheckLimit,
-                                       Label* label) {
+                                       Register boundsCheckLimit, Label* ok) {
   cmp32(index, boundsCheckLimit);
-  j(cond, label);
+  j(cond, ok);
   if (JitOptions.spectreIndexMasking) {
     cmovCCl(cond, Operand(boundsCheckLimit), index);
   }
 }
 
 void MacroAssembler::wasmBoundsCheck32(Condition cond, Register index,
-                                       Address boundsCheckLimit, Label* label) {
+                                       Address boundsCheckLimit, Label* ok) {
   cmp32(index, Operand(boundsCheckLimit));
-  j(cond, label);
+  j(cond, ok);
   if (JitOptions.spectreIndexMasking) {
     cmovCCl(cond, Operand(boundsCheckLimit), index);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86-shared/MacroAssembler-x86-shared-SIMD.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86-shared/MacroAssembler-x86-shared-SIMD.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit/x86-shared/MacroAssembler-x86-shared-SIMD.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit/x86-shared/MacroAssembler-x86-shared-SIMD.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -1213,8 +1213,9 @@
   // Convert lanes below 80000000h into unsigned int without issues.
   vcvttps2dq(dest, dest);
   // Knowing IEEE-754 number representation, to convert lanes above
-  // 7FFFFFFFh, just shift left by 7 bits.
-  vpslld(Imm32(7), scratch, scratch);
+  // 7FFFFFFFh, mutiply by 2 (to add 1 in exponent) and shift left by 8 bits.
+  vaddps(Operand(scratch), scratch, scratch);
+  vpslld(Imm32(8), scratch, scratch);
 
   // Combine the results.
   vpaddd(Operand(scratch), dest, dest);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/gc/bug-1736310.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/gc/bug-1736310.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/gc/bug-1736310.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/gc/bug-1736310.js	2021-10-20 19:28:23.000000000 +0000
@@ -0,0 +1,16 @@
+gczeal(9, 10);
+function a() {
+    var b = new Int32Array(buffer);
+    function c(d) {
+        b[5] = d;
+    }
+    return c;
+}
+b = new Int32Array(6);
+var buffer = b.buffer;
+a()({
+    valueOf() {
+        detachArrayBuffer(buffer);
+    }
+})
+
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/warp/bug1735157.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/warp/bug1735157.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/warp/bug1735157.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/warp/bug1735157.js	2021-10-20 19:28:24.000000000 +0000
@@ -0,0 +1,5 @@
+const options = ["", {}];
+let value = "";
+for (let i = 0; i < 10000; i++) {
+    value += options[(Math.random() < 0.01) | 0];
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/wasm/bce-x64-ion-codegen.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/wasm/bce-x64-ion-codegen.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/wasm/bce-x64-ion-codegen.js	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/wasm/bce-x64-ion-codegen.js	2021-10-20 19:28:23.000000000 +0000
@@ -1,4 +1,4 @@
-// |jit-test| --wasm-compiler=ion; --disable-wasm-huge-memory; --spectre-mitigations=off; skip-if: !hasDisassembler() || wasmCompileMode() != "ion" || !getBuildConfiguration().x64 || getBuildConfiguration().simulator || getJitCompilerOptions()["ion.check-range-analysis"]; include:codegen-x64-test.js
+// |jit-test| --wasm-compiler=optimizing; --disable-wasm-huge-memory; --spectre-mitigations=off; skip-if: !hasDisassembler() || wasmCompileMode() != "ion" || !getBuildConfiguration().x64 || getBuildConfiguration().simulator || getJitCompilerOptions()["ion.check-range-analysis"]; include:codegen-x64-test.js
 
 // Spectre mitigation is disabled above to make the generated code simpler to
 // match; ion.check-range-analysis makes a hash of the code and makes testing
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/wasm/bce-x86-ion-codegen.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/wasm/bce-x86-ion-codegen.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/wasm/bce-x86-ion-codegen.js	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/wasm/bce-x86-ion-codegen.js	2021-10-20 19:28:23.000000000 +0000
@@ -1,4 +1,4 @@
-// |jit-test| --wasm-compiler=ion; --spectre-mitigations=off; skip-if: !hasDisassembler() || wasmCompileMode() != "ion" || !getBuildConfiguration().x86 || getBuildConfiguration().simulator || getJitCompilerOptions()["ion.check-range-analysis"]; include:codegen-x86-test.js
+// |jit-test| --wasm-compiler=optimizing; --spectre-mitigations=off; skip-if: !hasDisassembler() || wasmCompileMode() != "ion" || !getBuildConfiguration().x86 || getBuildConfiguration().simulator || getJitCompilerOptions()["ion.check-range-analysis"]; include:codegen-x86-test.js
 
 // Spectre mitigation is disabled above to make the generated code simpler to
 // match; ion.check-range-analysis makes a hash of the code and makes testing
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/wasm/memory64/basic.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/wasm/memory64/basic.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/wasm/memory64/basic.js	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/wasm/memory64/basic.js	2021-10-20 19:28:23.000000000 +0000
@@ -235,3 +235,1244 @@
   (memory i64 1)
   (func (param $p i64)
     (drop (i32.load offset=0x100000000 (local.get $p)))))`)), false);
+
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// EXECUTION
+
+// Smoketest: Can we actually allocate a memory larger than 4GB?
+
+if (getBuildConfiguration()["pointer-byte-size"] == 8) {
+    // TODO: "index" is not yet part of the spec
+    // https://github.com/WebAssembly/memory64/issues/24
+
+    new WebAssembly.Memory({index:"i64", initial:65536 * 1.5, maximum:65536 * 2});
+}
+
+// JS-API
+
+if (WebAssembly.Function) {
+    // TODO: "index" is not yet part of the spec
+    // https://github.com/WebAssembly/memory64/issues/24
+
+    let m64 = new WebAssembly.Memory({index:"i64", initial:1});
+    assertEq(m64.type().index, "i64");
+
+    let m32 = new WebAssembly.Memory({initial:1});
+    assertEq(m32.type().index, "i32");
+}
+
+const SMALL = 64;  // < offsetguard everywhere
+const BIG = 131072;  // > offsetguard on 32-bit
+const HUGE = 2147483656; // > offsetguard on 64-bit
+
+function makeTest(LOC, INITIAL, MAXIMUM, SHARED) {
+    const v128Prefix =
+` (func $stash (param v128)
+    (v128.store (i64.const 0) (local.get 0)))
+
+  (func $unstash (result v128)
+    (v128.load (i64.const 0)))
+`;
+
+    const readV128Code =
+` (func (export "readv128@0") (param $p i64)
+    (call $stash (v128.load (local.get $p))))
+
+  (func (export "readv128@small") (param $p i64)
+    (call $stash (v128.load offset=${SMALL} (local.get $p))))
+
+  (func (export "readv128@big") (param $p i64)
+    (call $stash (v128.load offset=${BIG} (local.get $p))))
+
+  (func (export "readv128@huge") (param $p i64)
+    (call $stash (v128.load offset=${HUGE} (local.get $p))))
+
+  (func (export "readv128/const@0")
+    (call $stash (v128.load (i64.const ${LOC}))))
+
+  (func (export "readv128/const@small")
+    (call $stash (v128.load offset=${SMALL} (i64.const ${LOC}))))
+
+  (func (export "readv128/const@big")
+    (call $stash (v128.load offset=${BIG} (i64.const ${LOC}))))
+
+  (func (export "v128.load_splat@small") (param $p i64)
+    (call $stash (v128.load32_splat offset=${SMALL} (local.get $p))))
+
+  (func (export "v128.load_zero@small") (param $p i64)
+    (call $stash (v128.load32_zero offset=${SMALL} (local.get $p))))
+
+  (func (export "v128.load_extend@small") (param $p i64)
+    (call $stash (v128.load32x2_u offset=${SMALL} (local.get $p))))
+
+  (func (export "v128.load_lane@small") (param $p i64)
+    (call $stash (v128.load32_lane offset=${SMALL} 2 (local.get $p) (call $unstash))))
+`;
+
+    const writeV128Code =
+` (func (export "writev128@0") (param $p i64)
+    (v128.store (local.get $p) (call $unstash)))
+
+  (func (export "writev128@small") (param $p i64)
+    (v128.store offset=${SMALL} (local.get $p) (call $unstash)))
+
+  (func (export "writev128@big") (param $p i64)
+    (v128.store offset=${BIG} (local.get $p) (call $unstash)))
+
+  (func (export "writev128@huge") (param $p i64)
+    (v128.store offset=${HUGE} (local.get $p) (call $unstash)))
+
+  (func (export "writev128/const@0")
+    (v128.store (i64.const ${LOC}) (call $unstash)))
+
+  (func (export "writev128/const@small")
+    (v128.store offset=${SMALL} (i64.const ${LOC}) (call $unstash)))
+
+  (func (export "writev128/const@big")
+    (v128.store offset=${BIG} (i64.const ${LOC}) (call $unstash)))
+
+  (func (export "v128.store_lane@small") (param $p i64)
+    (v128.store32_lane offset=${SMALL} 2 (local.get $p) (call $unstash)))
+`;
+
+    const ins = wasmEvalText(`
+(module
+  (memory (export "mem") i64 ${INITIAL} ${MAXIMUM} ${SHARED})
+
+  ;; About the test cases: there are various optimizations in the engine
+  ;; for different shapes of a pointer+offset.  Constant pointers are
+  ;; resolved early; large offsets are folded early using explicit code
+  ;; with an overflow check (but "large" depends on 32-bit vs 64-bit);
+  ;; wait/notify fold offsets early regardless; zero offsets lead to
+  ;; tighter code with variable pointers; and don't get me started on
+  ;; alignment checks.  These test cases are not exhaustive but aim
+  ;; to test at least some things.
+
+  ;; TODO: more sizes for all operations, though this is not critical
+  ;; TODO: sign extending loads, again not critical
+
+  ${wasmSimdEnabled() ? v128Prefix : ""}
+
+  ;; Read i32
+  (func (export "readi32@0") (param $p i64) (result i32)
+    (i32.load (local.get $p)))
+
+  (func (export "readi32@small") (param $p i64) (result i32)
+    (i32.load offset=${SMALL} (local.get $p)))
+
+  (func (export "readi32@big") (param $p i64) (result i32)
+    (i32.load offset=${BIG} (local.get $p)))
+
+  (func (export "readi32@huge") (param $p i64) (result i32)
+    (i32.load offset=${HUGE} (local.get $p)))
+
+  (func (export "readi32/const@0") (result i32)
+    (i32.load (i64.const ${LOC})))
+
+  (func (export "readi32/const@small") (result i32)
+    (i32.load offset=${SMALL} (i64.const ${LOC})))
+
+  (func (export "readi32/const@big") (result i32)
+    (i32.load offset=${BIG} (i64.const ${LOC})))
+
+  ;; Read i64
+  (func (export "readi64@0") (param $p i64) (result i64)
+    (i64.load (local.get $p)))
+
+  (func (export "readi64@small") (param $p i64) (result i64)
+    (i64.load offset=${SMALL} (local.get $p)))
+
+  (func (export "readi64@big") (param $p i64) (result i64)
+    (i64.load offset=${BIG} (local.get $p)))
+
+  (func (export "readi64@huge") (param $p i64) (result i64)
+    (i64.load offset=${HUGE} (local.get $p)))
+
+  (func (export "readi64/const@0") (result i64)
+    (i64.load (i64.const ${LOC})))
+
+  (func (export "readi64/const@small") (result i64)
+    (i64.load offset=${SMALL} (i64.const ${LOC})))
+
+  (func (export "readi64/const@big") (result i64)
+    (i64.load offset=${BIG} (i64.const ${LOC})))
+
+  ;; Read v128
+  ${wasmSimdEnabled() ? readV128Code : ""}
+
+  ;; write i32
+  (func (export "writei32@0") (param $p i64) (param $v i32)
+    (i32.store (local.get $p) (local.get $v)))
+
+  (func (export "writei32@small") (param $p i64) (param $v i32)
+    (i32.store offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "writei32@big") (param $p i64) (param $v i32)
+    (i32.store offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "writei32@huge") (param $p i64) (param $v i32)
+    (i32.store offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "writei32/const@0") (param $v i32)
+    (i32.store (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "writei32/const@small") (param $v i32)
+    (i32.store offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "writei32/const@big") (param $v i32)
+    (i32.store offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; write i64
+  (func (export "writei64@0") (param $p i64) (param $v i64)
+    (i64.store (local.get $p) (local.get $v)))
+
+  (func (export "writei64@small") (param $p i64) (param $v i64)
+    (i64.store offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "writei64@big") (param $p i64) (param $v i64)
+    (i64.store offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "writei64@huge") (param $p i64) (param $v i64)
+    (i64.store offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "writei64/const@0") (param $v i64)
+    (i64.store (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "writei64/const@small") (param $v i64)
+    (i64.store offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "writei64/const@big") (param $v i64)
+    (i64.store offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; Read v128
+  ${wasmSimdEnabled() ? writeV128Code : ""}
+
+  ;; Atomic read i32
+
+  (func (export "areadi32@0") (param $p i64) (result i32)
+    (i32.atomic.load (local.get $p)))
+
+  (func (export "areadi32@small") (param $p i64) (result i32)
+    (i32.atomic.load offset=${SMALL} (local.get $p)))
+
+  (func (export "areadi32@big") (param $p i64) (result i32)
+    (i32.atomic.load offset=${BIG} (local.get $p)))
+
+  (func (export "areadi32@huge") (param $p i64) (result i32)
+    (i32.atomic.load offset=${HUGE} (local.get $p)))
+
+  (func (export "areadi32/const@0") (result i32)
+    (i32.atomic.load (i64.const ${LOC})))
+
+  (func (export "areadi32/const@small") (result i32)
+    (i32.atomic.load offset=${SMALL} (i64.const ${LOC})))
+
+  (func (export "areadi32/const@big") (result i32)
+    (i32.atomic.load offset=${BIG} (i64.const ${LOC})))
+
+  ;; Atomic read i64
+
+  (func (export "areadi64@0") (param $p i64) (result i64)
+    (i64.atomic.load (local.get $p)))
+
+  (func (export "areadi64@small") (param $p i64) (result i64)
+    (i64.atomic.load offset=${SMALL} (local.get $p)))
+
+  (func (export "areadi64@big") (param $p i64) (result i64)
+    (i64.atomic.load offset=${BIG} (local.get $p)))
+
+  (func (export "areadi64@huge") (param $p i64) (result i64)
+    (i64.atomic.load offset=${HUGE} (local.get $p)))
+
+  (func (export "areadi64/const@0") (result i64)
+    (i64.atomic.load (i64.const ${LOC})))
+
+  (func (export "areadi64/const@small") (result i64)
+    (i64.atomic.load offset=${SMALL} (i64.const ${LOC})))
+
+  (func (export "areadi64/const@big") (result i64)
+    (i64.atomic.load offset=${BIG} (i64.const ${LOC})))
+
+  ;; Atomic write i32
+
+  (func (export "awritei32@0") (param $p i64) (param $v i32)
+    (i32.atomic.store (local.get $p) (local.get $v)))
+
+  (func (export "awritei32@small") (param $p i64) (param $v i32)
+    (i32.atomic.store offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "awritei32@big") (param $p i64) (param $v i32)
+    (i32.atomic.store offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "awritei32@huge") (param $p i64) (param $v i32)
+    (i32.atomic.store offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "awritei32/const@0") (param $v i32)
+    (i32.atomic.store (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "awritei32/const@small") (param $v i32)
+    (i32.atomic.store offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "awritei32/const@big") (param $v i32)
+    (i32.atomic.store offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; Atomic write i64
+
+  (func (export "awritei64@0") (param $p i64) (param $v i64)
+    (i64.atomic.store (local.get $p) (local.get $v)))
+
+  (func (export "awritei64@small") (param $p i64) (param $v i64)
+    (i64.atomic.store offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "awritei64@big") (param $p i64) (param $v i64)
+    (i64.atomic.store offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "awritei64@huge") (param $p i64) (param $v i64)
+    (i64.atomic.store offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "awritei64/const@0") (param $v i64)
+    (i64.atomic.store (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "awritei64/const@small") (param $v i64)
+    (i64.atomic.store offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "awritei64/const@big") (param $v i64)
+    (i64.atomic.store offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; xchg i32
+
+  (func (export "xchgi32@0") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.xchg (local.get $p) (local.get $v)))
+
+  (func (export "xchgi32@small") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.xchg offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "xchgi32@big") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.xchg offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "xchgi32@huge") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.xchg offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "xchgi32/const@0") (param $v i32) (result i32)
+    (i32.atomic.rmw.xchg (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "xchgi32/const@small") (param $v i32) (result i32)
+    (i32.atomic.rmw.xchg offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "xchgi32/const@big") (param $v i32) (result i32)
+    (i32.atomic.rmw.xchg offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; xchg i64
+
+  (func (export "xchgi64@0") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.xchg (local.get $p) (local.get $v)))
+
+  (func (export "xchgi64@small") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.xchg offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "xchgi64@big") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.xchg offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "xchgi64@huge") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.xchg offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "xchgi64/const@0") (param $v i64) (result i64)
+    (i64.atomic.rmw.xchg (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "xchgi64/const@small") (param $v i64) (result i64)
+    (i64.atomic.rmw.xchg offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "xchgi64/const@big") (param $v i64) (result i64)
+    (i64.atomic.rmw.xchg offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; add i32
+
+  (func (export "addi32@0") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.add (local.get $p) (local.get $v)))
+
+  (func (export "addi32@small") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.add offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "addi32@big") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.add offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "addi32@huge") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.add offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "addi32/const@0") (param $v i32) (result i32)
+    (i32.atomic.rmw.add (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "addi32/const@small") (param $v i32) (result i32)
+    (i32.atomic.rmw.add offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "addi32/const@big") (param $v i32) (result i32)
+    (i32.atomic.rmw.add offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; add i64
+
+  (func (export "addi64@0") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.add (local.get $p) (local.get $v)))
+
+  (func (export "addi64@small") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.add offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "addi64@big") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.add offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "addi64@huge") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.add offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "addi64/const@0") (param $v i64) (result i64)
+    (i64.atomic.rmw.add (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "addi64/const@small") (param $v i64) (result i64)
+    (i64.atomic.rmw.add offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "addi64/const@big") (param $v i64) (result i64)
+    (i64.atomic.rmw.add offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; sub i32
+
+  (func (export "subi32@0") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.sub (local.get $p) (local.get $v)))
+
+  (func (export "subi32@small") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.sub offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "subi32@big") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.sub offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "subi32@huge") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.sub offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "subi32/const@0") (param $v i32) (result i32)
+    (i32.atomic.rmw.sub (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "subi32/const@small") (param $v i32) (result i32)
+    (i32.atomic.rmw.sub offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "subi32/const@big") (param $v i32) (result i32)
+    (i32.atomic.rmw.sub offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; sub i64
+
+  (func (export "subi64@0") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.sub (local.get $p) (local.get $v)))
+
+  (func (export "subi64@small") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.sub offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "subi64@big") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.sub offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "subi64@huge") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.sub offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "subi64/const@0") (param $v i64) (result i64)
+    (i64.atomic.rmw.sub (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "subi64/const@small") (param $v i64) (result i64)
+    (i64.atomic.rmw.sub offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "subi64/const@big") (param $v i64) (result i64)
+    (i64.atomic.rmw.sub offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; and i32
+
+  (func (export "andi32@0") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.and (local.get $p) (local.get $v)))
+
+  (func (export "andi32@small") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.and offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "andi32@big") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.and offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "andi32@huge") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.and offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "andi32/const@0") (param $v i32) (result i32)
+    (i32.atomic.rmw.and (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "andi32/const@small") (param $v i32) (result i32)
+    (i32.atomic.rmw.and offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "andi32/const@big") (param $v i32) (result i32)
+    (i32.atomic.rmw.and offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; and i64
+
+  (func (export "andi64@0") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.and (local.get $p) (local.get $v)))
+
+  (func (export "andi64@small") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.and offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "andi64@big") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.and offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "andi64@huge") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.and offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "andi64/const@0") (param $v i64) (result i64)
+    (i64.atomic.rmw.and (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "andi64/const@small") (param $v i64) (result i64)
+    (i64.atomic.rmw.and offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "andi64/const@big") (param $v i64) (result i64)
+    (i64.atomic.rmw.and offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; or i32
+
+  (func (export "ori32@0") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.or (local.get $p) (local.get $v)))
+
+  (func (export "ori32@small") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.or offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "ori32@big") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.or offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "ori32@huge") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.or offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "ori32/const@0") (param $v i32) (result i32)
+    (i32.atomic.rmw.or (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "ori32/const@small") (param $v i32) (result i32)
+    (i32.atomic.rmw.or offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "ori32/const@big") (param $v i32) (result i32)
+    (i32.atomic.rmw.or offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; or i64
+
+  (func (export "ori64@0") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.or (local.get $p) (local.get $v)))
+
+  (func (export "ori64@small") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.or offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "ori64@big") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.or offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "ori64@huge") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.or offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "ori64/const@0") (param $v i64) (result i64)
+    (i64.atomic.rmw.or (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "ori64/const@small") (param $v i64) (result i64)
+    (i64.atomic.rmw.or offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "ori64/const@big") (param $v i64) (result i64)
+    (i64.atomic.rmw.or offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; xor i32
+
+  (func (export "xori32@0") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.xor (local.get $p) (local.get $v)))
+
+  (func (export "xori32@small") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.xor offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "xori32@big") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.xor offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "xori32@huge") (param $p i64) (param $v i32) (result i32)
+    (i32.atomic.rmw.xor offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "xori32/const@0") (param $v i32) (result i32)
+    (i32.atomic.rmw.xor (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "xori32/const@small") (param $v i32) (result i32)
+    (i32.atomic.rmw.xor offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "xori32/const@big") (param $v i32) (result i32)
+    (i32.atomic.rmw.xor offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; xor i64
+
+  (func (export "xori64@0") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.xor (local.get $p) (local.get $v)))
+
+  (func (export "xori64@small") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.xor offset=${SMALL} (local.get $p) (local.get $v)))
+
+  (func (export "xori64@big") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.xor offset=${BIG} (local.get $p) (local.get $v)))
+
+  (func (export "xori64@huge") (param $p i64) (param $v i64) (result i64)
+    (i64.atomic.rmw.xor offset=${HUGE} (local.get $p) (local.get $v)))
+
+  (func (export "xori64/const@0") (param $v i64) (result i64)
+    (i64.atomic.rmw.xor (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "xori64/const@small") (param $v i64) (result i64)
+    (i64.atomic.rmw.xor offset=${SMALL} (i64.const ${LOC}) (local.get $v)))
+
+  (func (export "xori64/const@big") (param $v i64) (result i64)
+    (i64.atomic.rmw.xor offset=${BIG} (i64.const ${LOC}) (local.get $v)))
+
+  ;; cmpxchg i32
+
+  (func (export "cmpxchgi32@0") (param $p i64) (param $expect i32) (param $new i32) (result i32)
+    (i32.atomic.rmw.cmpxchg (local.get $p) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi32@small") (param $p i64) (param $expect i32) (param $new i32) (result i32)
+    (i32.atomic.rmw.cmpxchg offset=${SMALL} (local.get $p) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi32@big") (param $p i64) (param $expect i32) (param $new i32) (result i32)
+    (i32.atomic.rmw.cmpxchg offset=${BIG} (local.get $p) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi32@huge") (param $p i64) (param $expect i32) (param $new i32) (result i32)
+    (i32.atomic.rmw.cmpxchg offset=${HUGE} (local.get $p) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi32/const@0") (param $expect i32) (param $new i32) (result i32)
+    (i32.atomic.rmw.cmpxchg (i64.const ${LOC}) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi32/const@small") (param $expect i32) (param $new i32) (result i32)
+    (i32.atomic.rmw.cmpxchg offset=${SMALL} (i64.const ${LOC}) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi32/const@big") (param $expect i32) (param $new i32) (result i32)
+    (i32.atomic.rmw.cmpxchg offset=${BIG} (i64.const ${LOC}) (local.get $expect) (local.get $new)))
+
+  ;; cmpxchg i64
+
+  (func (export "cmpxchgi64@0") (param $p i64) (param $expect i64) (param $new i64) (result i64)
+    (i64.atomic.rmw.cmpxchg (local.get $p) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi64@small") (param $p i64) (param $expect i64) (param $new i64) (result i64)
+    (i64.atomic.rmw.cmpxchg offset=${SMALL} (local.get $p) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi64@big") (param $p i64) (param $expect i64) (param $new i64) (result i64)
+    (i64.atomic.rmw.cmpxchg offset=${BIG} (local.get $p) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi64@huge") (param $p i64) (param $expect i64) (param $new i64) (result i64)
+    (i64.atomic.rmw.cmpxchg offset=${HUGE} (local.get $p) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi64/const@0") (param $expect i64) (param $new i64) (result i64)
+    (i64.atomic.rmw.cmpxchg (i64.const ${LOC}) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi64/const@small") (param $expect i64) (param $new i64) (result i64)
+    (i64.atomic.rmw.cmpxchg offset=${SMALL} (i64.const ${LOC}) (local.get $expect) (local.get $new)))
+
+  (func (export "cmpxchgi64/const@big") (param $expect i64) (param $new i64) (result i64)
+    (i64.atomic.rmw.cmpxchg offset=${BIG} (i64.const ${LOC}) (local.get $expect) (local.get $new)))
+
+  ;; wait
+
+  (func (export "waiti32@small") (param $p i64) (result i32)
+    (memory.atomic.wait32 offset=${SMALL} (local.get $p) (i32.const 1) (i64.const 0)))
+
+  (func (export "waiti32@huge") (param $p i64) (result i32)
+    (memory.atomic.wait32 offset=${HUGE} (local.get $p) (i32.const 1) (i64.const 0)))
+
+  (func (export "waiti64@small") (param $p i64) (result i32)
+    (memory.atomic.wait64 offset=${SMALL} (local.get $p) (i64.const 1) (i64.const 0)))
+
+  (func (export "waiti64@huge") (param $p i64) (result i32)
+    (memory.atomic.wait64 offset=${HUGE} (local.get $p) (i64.const 1) (i64.const 0)))
+
+  ;; wake
+
+  (func (export "wake@0") (param $p i64) (result i32)
+    (memory.atomic.notify (local.get $p) (i32.const 1)))
+
+  (func (export "wake@small") (param $p i64) (result i32)
+    (memory.atomic.notify offset=${SMALL} (local.get $p) (i32.const 1)))
+
+  (func (export "wake@big") (param $p i64) (result i32)
+    (memory.atomic.notify offset=${BIG} (local.get $p) (i32.const 1)))
+
+  (func (export "wake@huge") (param $p i64) (result i32)
+    (memory.atomic.notify offset=${HUGE} (local.get $p) (i32.const 1)))
+)
+`);
+    return ins;
+}
+
+function i32Random() {
+    // Limit this to small positive numbers to keep life simple.
+    for (;;) {
+        let r = (Math.random() * 0x3FFF_FFFF) | 0;
+        if (r != 0)
+            return r;
+    }
+}
+
+function i64Random() {
+    return (BigInt(i32Random()) << 32n) | BigInt(i32Random());
+}
+
+function Random(sz) {
+    if (sz == 4)
+        return i32Random();
+    return i64Random();
+}
+
+function Random2(sz) {
+    return [Random(sz), Random(sz)];
+}
+
+function Random4(sz) {
+    return [Random(sz), Random(sz), Random(sz), Random(sz)];
+}
+
+function Zero(sz) {
+    if (sz == 4)
+        return 0;
+    return 0n;
+}
+
+function testRead(ins, mem, LOC, prefix) {
+    let r = 0;
+    let SZ = mem.BYTES_PER_ELEMENT;
+    let len = mem.length * SZ;
+    let NM = prefix + "readi" + (SZ * 8);
+
+    // Read in-bounds
+
+    r = Random(SZ);
+    mem[LOC / SZ] = r;
+    assertEq(ins.exports[NM + "@0"](BigInt(LOC)), r);
+    assertEq(ins.exports[NM + "/const@0"](), r);
+
+    mem[(len / SZ) - 1] = Zero(SZ);
+    assertEq(ins.exports[NM + "@0"](BigInt(len - SZ)), Zero(SZ)); // Just barely in-bounds
+
+    r = Random(SZ);
+    mem[(LOC + SMALL) / SZ] = r;
+    assertEq(ins.exports[NM + "@small"](BigInt(LOC)), r);
+    assertEq(ins.exports[NM + "/const@small"](), r);
+
+    if (len >= LOC + BIG + SZ) {
+        r = Random(SZ);
+        mem[(LOC + BIG) / SZ] = r;
+        assertEq(ins.exports[NM + "@big"](BigInt(LOC)), r);
+        assertEq(ins.exports[NM + "/const@big"](), r);
+    }
+
+    // Read out-of-bounds
+
+    assertErrorMessage(() => ins.exports[NM + "@0"](BigInt(len)),
+                       WebAssembly.RuntimeError,
+                       /out of bounds/);
+
+    assertErrorMessage(() => ins.exports[NM + "@0"](BigInt(len-(SZ-1))),
+                       WebAssembly.RuntimeError,
+                       prefix == "" ? /out of bounds/ : /unaligned memory access/);
+
+    // This is OOB if we consider the whole pointer as we must, but if we
+    // mistakenly only look at the low bits then it's in-bounds.
+    if (len < 0x1_0000_0000) {
+        assertErrorMessage(() => ins.exports[NM + "@0"](0x1_0000_0000n),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+    }
+
+    if (len < HUGE) {
+        assertErrorMessage(() => ins.exports[NM + "@huge"](0n),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+    }
+}
+
+function testReadV128(ins, mem, LOC) {
+    let r = 0;
+    let SZ = mem.BYTES_PER_ELEMENT;
+    let len = mem.length * SZ;
+    let NM = "readv128";
+
+    assertEq(SZ, 4);
+
+    // Read in-bounds
+
+    r = Random4(4);
+    mem.set(r, LOC / SZ);
+    ins.exports[NM + "@0"](BigInt(LOC))
+    assertSame(mem.slice(0, 4), r);
+    ins.exports[NM + "/const@0"]();
+    assertSame(mem.slice(0, 4), r);
+
+    r = new Int32Array([0,0,0,0]);
+    mem.set(r, (len / SZ) - 4);
+    ins.exports[NM + "@0"](BigInt(len - (SZ * 4)));  // Just barely in-bounds
+    assertSame(mem.slice(0, 4), r);
+
+    r = Random4(SZ);
+    mem.set(r, (LOC + SMALL) / SZ);
+    ins.exports[NM + "@small"](BigInt(LOC))
+    assertSame(mem.slice(0, 4), r);
+    ins.exports[NM + "/const@small"]();
+    assertSame(mem.slice(0, 4), r);
+
+    if (len >= LOC + BIG + SZ * 4) {
+        r = Random4(SZ);
+        mem.set(r, (LOC + BIG) / SZ);
+        ins.exports[NM + "@big"](BigInt(LOC));
+        assertSame(mem.slice(0, 4), r);
+        ins.exports[NM + "/const@big"]();
+        assertSame(mem.slice(0, 4), r);
+    }
+
+    // Read out-of-bounds
+
+    assertErrorMessage(() => ins.exports[NM + "@0"](BigInt(len)),
+                       WebAssembly.RuntimeError,
+                       /out of bounds/);
+
+    assertErrorMessage(() => ins.exports[NM + "@0"](BigInt(len-((SZ*4)-1))),
+                       WebAssembly.RuntimeError,
+                       /out of bounds/);
+
+    // This is OOB if we consider the whole pointer as we must, but if we
+    // mistakenly only look at the low bits then it's in-bounds.
+    if (len < 0x1_0000_0000) {
+        assertErrorMessage(() => ins.exports[NM + "@0"](0x1_0000_0000n),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+    }
+
+    if (len < HUGE) {
+        assertErrorMessage(() => ins.exports[NM + "@huge"](0n),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+    }
+
+    // Superficial testing of other load operations
+
+    r = i32Random()
+    mem[(LOC + SMALL) / SZ] = r;
+    ins.exports["v128.load_splat@small"](BigInt(LOC));
+    assertSame(mem.slice(0, 4), [r, r, r, r]);
+
+    r = i32Random()
+    mem[(LOC + SMALL) / SZ] = r;
+    ins.exports["v128.load_zero@small"](BigInt(LOC));
+    assertSame(mem.slice(0, 4), [r, 0, 0, 0]);
+
+    r = Random2(SZ)
+    mem.set(r, (LOC + SMALL) / SZ);
+    ins.exports["v128.load_extend@small"](BigInt(LOC));
+    assertSame(mem.slice(0, 4), [r[0], 0, r[1], 0]);
+
+    r = Random4(SZ)
+    mem.set(r, 0);
+    let s = i32Random()
+    mem[(LOC + SMALL) / SZ] = s;
+    ins.exports["v128.load_lane@small"](BigInt(LOC));
+    assertSame(mem.slice(0, 4), [r[0], r[1], s, r[3]]);
+}
+
+function testWrite(ins, mem, LOC, prefix) {
+    let r = 0;
+    let SZ = mem.BYTES_PER_ELEMENT;
+    let len = mem.length * SZ;
+    let WNM = prefix + "writei" + (SZ * 8);
+    let RNM = prefix + "readi" + (SZ * 8);
+
+    // Write in-bounds
+
+    r = Random(SZ);
+    ins.exports[WNM + "@0"](BigInt(LOC), r);
+    assertEq(ins.exports[RNM + "@0"](BigInt(LOC)), r);
+
+    r = Random(SZ);
+    ins.exports[WNM + "@small"](BigInt(LOC), r);
+    assertEq(ins.exports[RNM + "@small"](BigInt(LOC)), r);
+
+    if (len >= LOC + BIG + SZ) {
+        r = Random(SZ);
+        ins.exports[WNM + "@big"](BigInt(LOC), r);
+        assertEq(ins.exports[RNM + "@big"](BigInt(LOC)), r);
+    }
+
+    r = Random(SZ);
+    ins.exports[WNM + "@0"](BigInt(len - SZ), r); // Just barely in-bounds
+    assertEq(ins.exports[RNM + "@0"](BigInt(len - SZ)), r);
+
+    // Write out-of-bounds
+
+    assertErrorMessage(() => ins.exports[WNM + "@0"](BigInt(len), Random(SZ)),
+                       WebAssembly.RuntimeError,
+                       /out of bounds/);
+
+    assertErrorMessage(() => ins.exports[WNM + "@0"](BigInt(len - (SZ - 1)), Random(SZ)),
+                       WebAssembly.RuntimeError,
+                       prefix == "" ? /out of bounds/ : /unaligned memory access/);
+
+    if (len < 0x1_0000_0000) {
+        let xs = ins.exports[RNM + "@0"](0n);
+        assertErrorMessage(() => ins.exports[WNM + "@0"](0x1_0000_0000n, Random(SZ)),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+        // Check for scribbling
+        assertEq(ins.exports[RNM + "@0"](0n), xs);
+    }
+
+    if (len < HUGE) {
+        assertErrorMessage(() => ins.exports[WNM + "@huge"](0n, Random(SZ)),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+    }
+}
+
+function testWriteV128(ins, mem, LOC) {
+    let r = 0;
+    let p = 0;
+    let SZ = mem.BYTES_PER_ELEMENT;
+    let len = mem.length * SZ;
+    let WNM = "writev128";
+    let RNM = "readv128";
+
+    assertEq(SZ, 4);
+
+    // Write in-bounds
+
+    r = Random4(SZ);
+    mem.set(r, 0);
+    p = LOC / SZ;
+    ins.exports[WNM + "@0"](BigInt(LOC));
+    assertSame(mem.slice(p, p + 4), r);
+
+    r = Random4(SZ);
+    mem.set(r, 0);
+    p = (LOC + SMALL) / SZ;
+    ins.exports[WNM + "@small"](BigInt(LOC));
+    assertSame(mem.slice(p, p + 4), r);
+
+    if (len >= LOC + BIG + SZ) {
+        r = Random4(SZ);
+        mem.set(r, 0);
+        p = (LOC + BIG) / SZ;
+        ins.exports[WNM + "@big"](BigInt(LOC));
+        assertSame(mem.slice(p, p + 4), r);
+    }
+
+    r = Random4(SZ);
+    mem.set(r, 0);
+    p = (len - (SZ * 4)) / SZ;
+    ins.exports[WNM + "@0"](BigInt(len - (SZ * 4))); // Just barely in-bounds
+    assertSame(mem.slice(p, p + 4), r);
+
+    // Write out-of-bounds
+
+    assertErrorMessage(() => ins.exports[WNM + "@0"](BigInt(len)),
+                       WebAssembly.RuntimeError,
+                       /out of bounds/);
+
+    assertErrorMessage(() => ins.exports[WNM + "@0"](BigInt(len - ((SZ * 4) - 1))),
+                       WebAssembly.RuntimeError,
+                       /out of bounds/);
+
+    if (len < HUGE) {
+        assertErrorMessage(() => ins.exports[WNM + "@huge"](0n),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+    }
+
+    // Superficial testing of other store operations
+
+    r = Random4(SZ);
+    mem.set(r, 0);
+    ins.exports["v128.store_lane@small"](BigInt(LOC));
+    assertEq(mem[(LOC + SMALL) / SZ], r[2]);
+}
+
+function testAtomicRMW(ins, mem, LOC, op, fn) {
+    let r = 0, s = 0;
+    let SZ = mem.BYTES_PER_ELEMENT;
+    let len = mem.length * SZ;
+    let NM = op + "i" + (SZ * 8);
+
+    [r,s] = Random2(SZ);
+    mem[LOC / SZ] = r;
+    assertEq(ins.exports[NM + "@0"](BigInt(LOC), s), r);
+    assertEq(mem[LOC / SZ], fn(r, s));
+
+    [r,s] = Random2(SZ);
+    mem[(LOC + SMALL) / SZ] = r;
+    assertEq(ins.exports[NM + "@small"](BigInt(LOC), s), r);
+    assertEq(mem[(LOC + SMALL) / SZ], fn(r, s));
+
+    if (len >= LOC + BIG + SZ) {
+        [r,s] = Random2(SZ);
+        mem[(LOC + BIG) / SZ] = r;
+        assertEq(ins.exports[NM + "@big"](BigInt(LOC), s), r);
+        assertEq(mem[(LOC + BIG) / SZ], fn(r, s));
+    }
+
+
+    assertErrorMessage(() => ins.exports[NM + "@0"](BigInt(len), Zero(SZ)),
+                       WebAssembly.RuntimeError,
+                       /out of bounds/);
+
+    assertErrorMessage(() => ins.exports[NM + "@0"](BigInt(len - (SZ - 1)), Zero(SZ)),
+                       WebAssembly.RuntimeError,
+                       /unaligned memory access/);
+
+    if (len < HUGE) {
+        assertErrorMessage(() => ins.exports[NM + "@huge"](0n, Zero(SZ)),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+    }
+}
+
+function testAtomicCmpxchg(ins, mem, LOC) {
+    let r = 0, s = 0;
+    let SZ = mem.BYTES_PER_ELEMENT;
+    let len = mem.length * SZ;
+    let NM = "cmpxchgi" + (SZ * 8);
+
+    [r,s] = Random2(SZ);
+    mem[LOC / SZ] = r;
+    assertEq(ins.exports[NM + "@0"](BigInt(LOC), Zero(SZ), s), r);
+    assertEq(ins.exports[NM + "@0"](BigInt(LOC), r, s), r);
+    assertEq(mem[LOC / SZ], s);
+
+    [r,s] = Random2(SZ);
+    mem[(LOC + SMALL) / SZ] = r;
+    assertEq(ins.exports[NM + "@0"](BigInt(LOC + SMALL), Zero(SZ), s), r);
+    assertEq(ins.exports[NM + "@0"](BigInt(LOC + SMALL), r, s), r);
+    assertEq(mem[(LOC + SMALL) / SZ], s);
+
+    if (len >= LOC + BIG + SZ) {
+        [r,s] = Random2(SZ);
+        mem[(LOC + BIG) / SZ] = r;
+        assertEq(ins.exports[NM + "@0"](BigInt(LOC + BIG), Zero(SZ), s), r);
+        assertEq(ins.exports[NM + "@0"](BigInt(LOC + BIG), r, s), r);
+        assertEq(mem[(LOC + BIG) / SZ], s);
+    }
+
+    assertErrorMessage(() => ins.exports[NM + "@0"](BigInt(len), Zero(SZ), Zero(SZ)),
+                       WebAssembly.RuntimeError,
+                       /out of bounds/);
+
+    assertErrorMessage(() => ins.exports[NM + "@0"](BigInt(len - (SZ - 1)), Zero(SZ), Zero(SZ)),
+                       WebAssembly.RuntimeError,
+                       /unaligned memory access/);
+
+    if (len < HUGE) {
+        assertErrorMessage(() => ins.exports[NM + "@huge"](0n, Zero(SZ), Zero(SZ)),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+    }
+}
+
+function testAtomicWake(ins, mem, LOC) {
+    let SZ = mem.BYTES_PER_ELEMENT;
+    let len = mem.length * SZ;
+
+    assertEq(ins.exports["wake@0"](BigInt(LOC)), 0);
+    assertEq(ins.exports["wake@small"](BigInt(LOC)), 0);
+    if (len >= LOC + BIG + SZ) {
+        assertEq(ins.exports["wake@big"](BigInt(LOC)), 0);
+    }
+
+    assertErrorMessage(() => ins.exports["wake@0"](BigInt(len)),
+                       WebAssembly.RuntimeError,
+                       /out of bounds/);
+
+    assertErrorMessage(() => ins.exports["wake@0"](BigInt(len - (SZ - 1))),
+                       WebAssembly.RuntimeError,
+                       /unaligned memory access/);
+
+    if (len < HUGE) {
+        assertErrorMessage(() => ins.exports["wake@huge"](BigInt(LOC)),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+    }
+}
+
+// Sometimes we start memory at zero to disable certain bounds checking
+// optimizations.  Other times we start memory at something beyond most of
+// our references to enable those optimizations.
+let configs = [[40, 0, 3, ''], [40, 3, '', '']];
+
+// On 64-bit systems, test beyond 2GB and also beyond 4GB
+if (getBuildConfiguration()["pointer-byte-size"] == 8) {
+    configs.push([Math.pow(2, 31) + 40, 32771, '', '']);
+    configs.push([Math.pow(2, 32) + 40, 65539, '', '']);
+}
+
+for (let [LOC, start, max, shared] of configs) {
+    const ins = makeTest(LOC, start, max, shared);
+    if (start == 0) {
+        assertEq(ins.exports.mem.grow(max), 0);
+    }
+
+    const mem32 = new Int32Array(ins.exports.mem.buffer);
+    const mem64 = new BigInt64Array(ins.exports.mem.buffer);
+
+    for ( let m of [mem32, mem64] ) {
+        testRead(ins, m, LOC, "");
+        testWrite(ins, m, LOC, "");
+        testRead(ins, m, LOC, "a");
+        testWrite(ins, m, LOC, "a");
+        testAtomicRMW(ins, m, LOC, "add", (r,s) => r+s);
+        testAtomicRMW(ins, m, LOC, "sub", (r,s) => r-s);
+        testAtomicRMW(ins, m, LOC, "and", (r,s) => r&s);
+        testAtomicRMW(ins, m, LOC, "or", (r,s) => r|s);
+        testAtomicRMW(ins, m, LOC, "xor", (r,s) => r^s);
+        testAtomicRMW(ins, m, LOC, "xchg", (r,s) => s);
+        testAtomicCmpxchg(ins, m, LOC);
+        testAtomicWake(ins, m, LOC);
+    }
+
+    if (wasmSimdEnabled()) {
+        testReadV128(ins, mem32, LOC);
+        testWriteV128(ins, mem32, LOC);
+    }
+}
+
+// Bulk memory operations
+
+function makeModule(initial, maximum, shared) {
+    return `
+(module
+  (memory (export "mem") i64 ${initial} ${maximum} ${shared})
+
+  (data $seg passive "0123456789")
+
+  (func (export "size") (result i64)
+    memory.size)
+
+  (func (export "grow") (param $delta i64) (result i64)
+    (memory.grow (local.get $delta)))
+
+  (func (export "copy") (param $to i64) (param $from i64) (param $len i64)
+    (memory.copy (local.get $to) (local.get $from) (local.get $len)))
+
+  (func (export "fill") (param $to i64) (param $val i32) (param $len i64)
+    (memory.fill (local.get $to) (local.get $val) (local.get $len)))
+
+  (func (export "init") (param $to i64) (param $src i32) (param $count i32)
+    (memory.init $seg (local.get $to) (local.get $src) (local.get $count)))
+)`;
+}
+
+for ( let shared of ['','shared'] ) {
+    let ins = wasmEvalText(makeModule(1, 3, shared));
+
+    assertEq(ins.exports.size(), 1n);
+
+    assertEq(ins.exports.grow(2n), 1n);
+    assertEq(ins.exports.size(), 3n);
+
+    assertEq(ins.exports.grow(1n), -1n);
+    assertEq(ins.exports.size(), 3n);
+
+    assertEq(ins.exports.grow(100000n), -1n);
+    assertEq(ins.exports.size(), 3n);
+
+    assertEq(ins.exports.grow(0x1_0000_0000_0000n), -1n); // More than 2^48 pages
+    assertEq(ins.exports.size(), 3n);
+
+    assertEq(ins.exports.grow(-1n), -1n); // More than 2^48 pages - interpreted as unsigned
+    assertEq(ins.exports.size(), 3n);
+
+    var mem = new Uint8Array(ins.exports.mem.buffer);
+    var val = [1,2,3,4,5];
+    mem.set(val, 20);
+    ins.exports.copy(40n, 20n, 5n);
+    assertSame(val, mem.slice(40, 45));
+
+    ins.exports.fill(39n, 37, 8n);
+    assertSame(iota(8).map(_ => 37), mem.slice(39, 47));
+
+    ins.exports.init(128n, 1, 5);
+    assertSame(iota(5).map(x => x+49), mem.slice(128, 133));
+}
+
+if (getBuildConfiguration()["pointer-byte-size"] == 8) {
+    for ( let shared of ['','shared'] ) {
+        let limit = wasmMaxMemoryPages('i64');
+        let initial = 65537;
+        let maximum = limit + 1;
+        let pagesize = 65536n;
+
+        let ins = wasmEvalText(makeModule(initial, maximum, shared));
+
+        assertEq(ins.exports.size(), BigInt(initial));
+
+        assertEq(ins.exports.grow(2n), BigInt(initial));
+        assertEq(ins.exports.size(), BigInt(initial + 2));
+
+        assertEq(ins.exports.grow(BigInt(limit - (initial + 2) + 1)), -1n);
+        assertEq(ins.exports.size(), BigInt(initial + 2));
+
+        assertEq(ins.exports.grow(BigInt(limit - (initial + 2))), BigInt(initial + 2));
+        assertEq(ins.exports.size(), BigInt(limit));
+
+        let mem = new Uint8Array(ins.exports.mem.buffer);
+
+        let copyval = [1,2,3,4,5];
+        let source = 20n;
+        let target = BigInt(initial) * pagesize + 40n;
+        let oobTarget = BigInt(limit) * pagesize - 1n;
+
+        // Copy from memory below 4GB to memory beyond 4GB
+        mem.set(copyval, Number(source));
+        ins.exports.copy(target, source, BigInt(copyval.length));
+        assertSame(copyval, mem.slice(Number(target), Number(target) + copyval.length))
+
+        // Try to copy out of bounds
+        // src and target are both in bounds but len brings it oob
+        assertErrorMessage(() => ins.exports.copy(oobTarget, source, BigInt(copyval.length)),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+        assertEq(mem[Number(oobTarget-1n)], 0);
+        assertErrorMessage(() => ins.exports.copy(-1n, source, BigInt(copyval.length)),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+        assertEq(mem[Number(oobTarget-1n)], 0);
+
+        // Fill above 4GB
+        ins.exports.fill(target, 37, 30n);
+        assertSame(iota(30).map(_ => 37), mem.slice(Number(target), Number(target) + 30));
+
+        // Try to fill out of bounds
+        assertErrorMessage(() => ins.exports.fill(oobTarget, 37, 2n),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+        assertEq(mem[Number(oobTarget-1n)], 0);
+
+        // Init above 4GB
+        ins.exports.init(target, 1, 5);
+        assertSame(iota(5).map(x => x+49), mem.slice(Number(target), Number(target)+5));
+
+        // Try to init out of bounds
+        assertErrorMessage(() => ins.exports.init(oobTarget, 1, 5),
+                           WebAssembly.RuntimeError,
+                           /out of bounds/);
+        assertEq(mem[Number(oobTarget-1n)], 0);
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+function assertSame(got, expected) {
+    assertEq(got.length, expected.length);
+    for ( let i=0; i < got.length; i++ ) {
+        let g = got[i];
+        let e = expected[i];
+        if (typeof g != typeof e) {
+            if (typeof g == "bigint")
+                e = BigInt(e);
+            else if (typeof e == "bigint")
+                g = BigInt(g);
+        }
+        assertEq(g, e);
+    }
+}
+
+function iota(len) {
+    let xs = [];
+    for ( let i=0 ; i < len ; i++ )
+        xs.push(i);
+    return xs;
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/wasm/memory-cloning.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/wasm/memory-cloning.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/wasm/memory-cloning.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/wasm/memory-cloning.js	2021-10-20 19:28:23.000000000 +0000
@@ -1,12 +1,25 @@
-// |jit-test| skip-if: !wasmThreadsEnabled()
+// |jit-test| --wasm-memory64; skip-if: !wasmThreadsEnabled()
 
 // Basic structured cloning tests (specific to SpiderMonkey shell)
 
+var memtypes = wasmMemory64Enabled() ? ['i32', 'i64'] : [''];
+
+function makeMemoryDesc(memtype, d) {
+    if (memtype != '') {
+        d.index = memtype;
+    }
+    return d;
+}
+
+function Zero(memtype) {
+    return memtype == 'i64' ? 0n : 0;
+}
+
 // Should *not* be possible to serialize and deserialize memories that are not
 // shared, whether we transfer them or not.
 
-{
-    let mem1 = new WebAssembly.Memory({initial: 2, maximum: 4});
+for ( let memtype of memtypes ) {
+    let mem1 = new WebAssembly.Memory(makeMemoryDesc(memtype, {initial: 2, maximum: 4}));
     assertErrorMessage(() => serialize(mem1),
 		       TypeError,
 		       /unsupported type for structured data/);
@@ -18,8 +31,9 @@
 // Should be possible to serialize and deserialize memories that are shared, and
 // observe shared effects.
 
-{
-    let mem1 = new WebAssembly.Memory({initial: 2, maximum: 4, shared: true});
+for ( let memtype of memtypes ) {
+    let ptrtype = memtype == 'i64' ? memtype : 'i32';
+    let mem1 = new WebAssembly.Memory(makeMemoryDesc(memtype, {initial: 2, maximum: 4, shared: true}));
     let buf1 = mem1.buffer;
 
     // Serialization and deserialization of shared memories work:
@@ -31,6 +45,9 @@
 
     assertEq(buf1 !== buf2, true);
     assertEq(buf1.byteLength, buf2.byteLength);
+    if (memtype != '' && mem2.type) {
+        assertEq(mem2.type().index, memtype);
+    }
 
     // Effects to one buffer must be reflected in the other:
 
@@ -44,9 +61,9 @@
 
     let index = 2*65536 + 200;
     let access = wasmEvalText(`(module
-				(memory (import "" "memory") 2 4 shared)
-				(func (export "l") (result i32)
-				 (i32.load (i32.const ${index}))))`,
+				(memory (import "" "memory") ${memtype} 2 4 shared)
+				(func (export "l") (result ${ptrtype})
+				 (${ptrtype}.load (${ptrtype}.const ${index}))))`,
 			      {"": {memory: mem2}}).exports.l;
 
     // initially mem2 cannot be accessed at index
@@ -54,18 +71,18 @@
 
     // then we grow mem1
     wasmEvalText(`(module
-		   (memory (import "" "memory") 2 4 shared)
-		   (func (export "g") (drop (memory.grow (i32.const 1)))))`,
+		   (memory (import "" "memory") ${memtype} 2 4 shared)
+		   (func (export "g") (drop (memory.grow (${ptrtype}.const 1)))))`,
 		 {"": {memory: mem1}}).exports.g();
 
     // after growing mem1, mem2 can be accessed at index
-    assertEq(access(), 0);
+    assertEq(access(), Zero(memtype));
 }
 
 // Should not be possible to transfer a shared memory
 
-{
-    let mem1 = new WebAssembly.Memory({initial: 2, maximum: 4, shared: true});
+for ( let memtype of memtypes ) {
+    let mem1 = new WebAssembly.Memory(makeMemoryDesc(memtype, {initial: 2, maximum: 4, shared: true}));
     assertErrorMessage(() => serialize(mem1, [mem1]),
 		       TypeError,
 		       /Shared memory objects must not be in the transfer list/);
@@ -76,8 +93,8 @@
 // of the SAB should not change even if the memory was grown after serialization
 // and before deserialization.
 
-{
-    let mem = new WebAssembly.Memory({initial: 2, maximum: 4, shared: true});
+for ( let memtype of memtypes ) {
+    let mem = new WebAssembly.Memory(makeMemoryDesc(memtype, {initial: 2, maximum: 4, shared: true}));
     let buf = mem.buffer;
     let clonedbuf = serialize(buf, [], {SharedArrayBuffer: 'allow'});
     mem.grow(1);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/wasm/simd/experimental.js firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/wasm/simd/experimental.js
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jit-test/tests/wasm/simd/experimental.js	2021-10-17 14:42:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jit-test/tests/wasm/simd/experimental.js	2021-10-20 19:28:24.000000000 +0000
@@ -254,10 +254,15 @@
 ins.exports.from32s();
 var result = get(new Int32Array(mem), 0, 4);
 assertSame(result, [0, 2, -3, 100000]);
+
 set(new Float32Array(mem), 4, [0, 3.3, 0x80000000, 200000]);
 ins.exports.from32u();
 var result = get(new Uint32Array(mem), 0, 4);
 assertSame(result, [0, 3, 0x80000000, 200000]);
+set(new Float32Array(mem), 4, [0, 0x80000100, 0x80000101, 0xFFFFFF00]);
+ins.exports.from32u();
+var result = get(new Uint32Array(mem), 0, 4);
+assertSame(result, [0, 0x80000100, 0x80000100, 0xFFFFFF00]);
 
 set(new Float64Array(mem), 2, [200000.3, -3.4]);
 ins.exports.from64s();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jsapi.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jsapi.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jsapi.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jsapi.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -2306,8 +2306,8 @@
   introductionLineno = rhs.introductionLineno;
   introductionOffset = rhs.introductionOffset;
   hasIntroductionInfo = rhs.hasIntroductionInfo;
-  hideScriptFromDebugger = rhs.hideScriptFromDebugger;
-  deferDebugMetadata = rhs.deferDebugMetadata;
+  hideScriptFromDebugger_ = rhs.hideScriptFromDebugger_;
+  deferDebugMetadata_ = rhs.deferDebugMetadata_;
   nonSyntacticScope = rhs.nonSyntacticScope;
   privateClassFields = rhs.privateClassFields;
   privateClassMethods = rhs.privateClassMethods;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jsapi-tests/testGCWeakCache.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jsapi-tests/testGCWeakCache.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jsapi-tests/testGCWeakCache.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jsapi-tests/testGCWeakCache.cpp	2021-10-20 19:28:23.000000000 +0000
@@ -136,8 +136,9 @@
   HeapPtr<JSObject*> obj;
   explicit ObjectEntry(JSObject* o) : obj(o) {}
   bool operator==(const ObjectEntry& other) const { return obj == other.obj; }
-  bool needsSweep() {
-    return JS::GCPolicy<HeapPtr<JSObject*>>::needsSweep(&obj);
+  bool needsSweep() { return IsAboutToBeFinalized(&obj); }
+  bool traceWeak(JSTracer* trc) {
+    return TraceWeakEdge(trc, &obj, "ObjectEntry::obj");
   }
 };
 
@@ -173,8 +174,9 @@
   bool operator==(const NumberAndObjectEntry& other) const {
     return number == other.number && obj == other.obj;
   }
-  bool needsSweep() {
-    return JS::GCPolicy<HeapPtr<JSObject*>>::needsSweep(&obj);
+  bool needsSweep() { return IsAboutToBeFinalized(&obj); }
+  bool traceWeak(JSTracer* trc) {
+    return TraceWeakEdge(trc, &obj, "NumberAndObjectEntry::obj");
   }
 };
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/jsapi-tests/testStencil.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/jsapi-tests/testStencil.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/jsapi-tests/testStencil.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/jsapi-tests/testStencil.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -48,8 +48,9 @@
       JS::CompileGlobalScriptToStencil(cx, options, srcBuf);
   CHECK(stencil);
 
-  JS::RootedScript script(cx,
-                          JS::InstantiateGlobalStencil(cx, options, stencil));
+  JS::InstantiateOptions instantiateOptions(options);
+  JS::RootedScript script(
+      cx, JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil));
   CHECK(script);
 
   JS::RootedValue rval(cx);
@@ -88,8 +89,9 @@
       JS::CompileModuleScriptToStencil(cx, options, srcBuf);
   CHECK(stencil);
 
+  JS::InstantiateOptions instantiateOptions(options);
   JS::RootedObject moduleObject(
-      cx, JS::InstantiateModuleStencil(cx, options, stencil));
+      cx, JS::InstantiateModuleStencil(cx, instantiateOptions, stencil));
   CHECK(moduleObject);
 
   // Link and evaluate the module graph. The link step used to be call
@@ -122,8 +124,9 @@
       JS::CompileGlobalScriptToStencil(cx, options, srcBuf);
   CHECK(stencil);
 
-  JS::RootedScript script(cx,
-                          JS::InstantiateGlobalStencil(cx, options, stencil));
+  JS::InstantiateOptions instantiateOptions(options);
+  JS::RootedScript script(
+      cx, JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil));
   CHECK(script);
 
   JS::RootedObject obj(cx, JS_NewPlainObject(cx));
@@ -178,9 +181,9 @@
 
   JSAutoRealm ar(cx, otherGlobal);
 
-  JS::CompileOptions options(cx);
-  JS::RootedScript script(cx,
-                          JS::InstantiateGlobalStencil(cx, options, stencil));
+  JS::InstantiateOptions instantiateOptions;
+  JS::RootedScript script(
+      cx, JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil));
   CHECK(script);
 
   JS::RootedValue rval(cx);
@@ -215,8 +218,9 @@
     CHECK(!buffer.empty());
 
     // Instantiate and Run
-    JS::RootedScript script(cx,
-                            JS::InstantiateGlobalStencil(cx, options, stencil));
+    JS::InstantiateOptions instantiateOptions(options);
+    JS::RootedScript script(
+        cx, JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil));
     JS::RootedValue rval(cx);
     CHECK(script);
     CHECK(JS_ExecuteScript(cx, script, &rval));
@@ -250,8 +254,9 @@
     buffer.clear();
 
     // Instantiate and Run
-    JS::RootedScript script(cx,
-                            JS::InstantiateGlobalStencil(cx, options, stencil));
+    JS::InstantiateOptions instantiateOptions(options);
+    JS::RootedScript script(
+        cx, JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil));
     stencil = nullptr;
     JS::RootedValue rval(cx);
     CHECK(script);
@@ -301,7 +306,8 @@
         JS::DecodeStencil(cx, options, range, getter_AddRefs(stencil));
     CHECK(res == JS::TranscodeResult::Ok);
 
-    script = JS::InstantiateGlobalStencil(cx, options, stencil);
+    JS::InstantiateOptions instantiateOptions(options);
+    script = JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil);
     CHECK(script);
   }
 
@@ -350,8 +356,9 @@
   RefPtr<JS::Stencil> stencil = JS::FinishOffThreadStencil(cx, token);
   CHECK(stencil);
 
-  JS::RootedScript script(cx,
-                          JS::InstantiateGlobalStencil(cx, options, stencil));
+  JS::InstantiateOptions instantiateOptions(options);
+  JS::RootedScript script(
+      cx, JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil));
   CHECK(script);
 
   JS::RootedValue rval(cx);
@@ -399,8 +406,9 @@
   RefPtr<JS::Stencil> stencil = JS::FinishOffThreadStencil(cx, token);
   CHECK(stencil);
 
+  JS::InstantiateOptions instantiateOptions(options);
   JS::RootedObject moduleObject(
-      cx, JS::InstantiateModuleStencil(cx, options, stencil));
+      cx, JS::InstantiateModuleStencil(cx, instantiateOptions, stencil));
   CHECK(moduleObject);
 
   JS::RootedValue rval(cx);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/moz.build firefox-trunk-95.0~a1~hg20211020r596404/js/src/moz.build
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/moz.build	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/moz.build	2021-10-20 19:28:24.000000000 +0000
@@ -478,7 +478,6 @@
         "builtin/intl/DisplayNames.cpp",
         "builtin/intl/IntlObject.cpp",
         "builtin/intl/LanguageTag.cpp",
-        "builtin/intl/LanguageTagGenerated.cpp",
         "builtin/intl/ListFormat.cpp",
         "builtin/intl/Locale.cpp",
         "builtin/intl/NumberFormat.cpp",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/shell/js.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/shell/js.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/shell/js.cpp	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/shell/js.cpp	2021-10-20 19:28:24.000000000 +0000
@@ -2298,7 +2298,7 @@
 
   options.setIntroductionType("js shell evaluate")
       .setFileAndLine("@evaluate", 1)
-      .setdeferDebugMetadata();
+      .setDeferDebugMetadata();
 
   options.borrowBuffer = true;
 
@@ -2497,7 +2497,8 @@
           return false;
         }
 
-        script = JS::InstantiateGlobalStencil(cx, options, stencil);
+        JS::InstantiateOptions instantiateOptions(options);
+        script = JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil);
         if (!script) {
           return false;
         }
@@ -2548,7 +2549,8 @@
       }
     }
 
-    if (!JS::UpdateDebugMetadata(cx, script, options, privateValue,
+    JS::InstantiateOptions instantiateOptions(options);
+    if (!JS::UpdateDebugMetadata(cx, script, instantiateOptions, privateValue,
                                  elementAttributeName, nullptr, nullptr)) {
       return false;
     }
@@ -5334,7 +5336,7 @@
       .setFileAndLine("<string>", 1)
       .setIsRunOnce(true)
       .setNoScriptRval(true)
-      .setdeferDebugMetadata();
+      .setDeferDebugMetadata();
   RootedValue privateValue(cx);
   RootedString elementAttributeName(cx);
 
@@ -5365,7 +5367,8 @@
     return false;
   }
 
-  if (!JS::UpdateDebugMetadata(cx, script, options, privateValue,
+  JS::InstantiateOptions instantiateOptions(options);
+  if (!JS::UpdateDebugMetadata(cx, script, instantiateOptions, privateValue,
                                elementAttributeName, nullptr, nullptr)) {
     return false;
   }
@@ -6227,7 +6230,7 @@
   CompileOptions options(cx);
   options.setIntroductionType("js shell offThreadCompileScript")
       .setFileAndLine("<string>", 1)
-      .setdeferDebugMetadata();
+      .setDeferDebugMetadata();
 
   if (args.length() >= 2) {
     if (args[1].isPrimitive()) {
@@ -6340,8 +6343,10 @@
   }
 
   CompileOptions dummyOptions(cx);
-  if (!JS::UpdateDebugMetadata(cx, script, dummyOptions, privateValue,
-                               elementAttributeName, nullptr, nullptr)) {
+  JS::InstantiateOptions dummyInstantiateOptions(dummyOptions);
+  if (!JS::UpdateDebugMetadata(cx, script, dummyInstantiateOptions,
+                               privateValue, elementAttributeName, nullptr,
+                               nullptr)) {
     return false;
   }
 
@@ -6370,7 +6375,7 @@
   CompileOptions options(cx);
   options.setIntroductionType("js shell offThreadCompileToStencil")
       .setFileAndLine("<string>", 1)
-      .setdeferDebugMetadata();
+      .setDeferDebugMetadata();
 
   if (args.length() >= 2) {
     if (args[1].isPrimitive()) {
@@ -7827,6 +7832,7 @@
     struct {
       SharedArrayRawBuffer* buffer;
       size_t length;
+      bool isHugeMemory;  // For a WasmMemory tag, otherwise false
     } sarb;
     JS::WasmModule* module;
     double number;
@@ -7929,7 +7935,8 @@
           }
           RootedObject proto(cx,
                              &cx->global()->getPrototype(JSProto_WasmMemory));
-          newObj = WasmMemoryObject::create(cx, maybesab, proto);
+          newObj = WasmMemoryObject::create(cx, maybesab,
+                                            mbx->val.sarb.isHugeMemory, proto);
           MOZ_ASSERT_IF(newObj, newObj->as<WasmMemoryObject>().isShared());
           if (!newObj) {
             return false;
@@ -7983,6 +7990,7 @@
       tag = MailboxTag::SharedArrayBuffer;
       value.sarb.buffer = sab->rawBufferObject();
       value.sarb.length = sab->byteLength();
+      value.sarb.isHugeMemory = false;
       if (!value.sarb.buffer->addReference()) {
         JS_ReportErrorASCII(cx,
                             "Reference count overflow on SharedArrayBuffer");
@@ -7999,6 +8007,7 @@
         tag = MailboxTag::WasmMemory;
         value.sarb.buffer = sab->rawBufferObject();
         value.sarb.length = sab->byteLength();
+        value.sarb.isHugeMemory = obj->as<WasmMemoryObject>().isHuge();
         if (!value.sarb.buffer->addReference()) {
           JS_ReportErrorASCII(cx,
                               "Reference count overflow on SharedArrayBuffer");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/shell/jsshell.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/shell/jsshell.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/shell/jsshell.h	2021-10-17 14:42:40.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/shell/jsshell.h	2021-10-20 19:28:24.000000000 +0000
@@ -175,12 +175,11 @@
 class NonshrinkingGCObjectVector
     : public GCVector<HeapPtrObject, 0, SystemAllocPolicy> {
  public:
-  void sweep() {
+  bool traceWeak(JSTracer* trc) {
     for (HeapPtrObject& obj : *this) {
-      if (JS::GCPolicy<HeapPtrObject>::needsSweep(&obj)) {
-        obj = nullptr;
-      }
+      TraceWeakEdge(trc, &obj, "NonshrinkingGCObjectVector element");
     }
+    return true;
   }
 };
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/ArrayBufferObject.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/ArrayBufferObject.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/ArrayBufferObject.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/ArrayBufferObject.cpp	2021-10-20 19:28:29.000000000 +0000
@@ -151,13 +151,16 @@
   return true;
 }
 
-void* js::MapBufferMemory(size_t mappedSize, size_t initialCommittedSize) {
+void* js::MapBufferMemory(wasm::IndexType t, size_t mappedSize,
+                          size_t initialCommittedSize) {
   MOZ_ASSERT(mappedSize % gc::SystemPageSize() == 0);
   MOZ_ASSERT(initialCommittedSize % gc::SystemPageSize() == 0);
   MOZ_ASSERT(initialCommittedSize <= mappedSize);
 
   auto decrement = mozilla::MakeScopeExit([&] { liveBufferCount--; });
-  if (wasm::IsHugeMemoryEnabled()) {
+  // Testing just IsHugeMemoryEnabled() here will overestimate the number of
+  // live buffers, as asm.js buffers are not huge.  This is OK in practice.
+  if (wasm::IsHugeMemoryEnabled(t)) {
     liveBufferCount++;
   } else {
     decrement.release();
@@ -271,7 +274,7 @@
 #endif
 }
 
-void js::UnmapBufferMemory(void* base, size_t mappedSize) {
+void js::UnmapBufferMemory(wasm::IndexType t, void* base, size_t mappedSize) {
   MOZ_ASSERT(mappedSize % gc::SystemPageSize() == 0);
 
 #ifdef XP_WIN
@@ -288,9 +291,12 @@
                                                 mappedSize);
 #endif
 
-  if (wasm::IsHugeMemoryEnabled()) {
+  if (wasm::IsHugeMemoryEnabled(t)) {
     // Decrement the buffer counter at the end -- otherwise, a race condition
     // could enable the creation of unlimited buffers.
+    //
+    // Also see comment in MapBufferMemory about overestimation due to the
+    // imprecision of the above guard.
     --liveBufferCount;
   }
 }
@@ -695,8 +701,8 @@
   uint64_t mappedSizeWithHeader = mappedSize + gc::SystemPageSize();
   uint64_t numBytesWithHeader = numBytes + gc::SystemPageSize();
 
-  void* data =
-      MapBufferMemory((size_t)mappedSizeWithHeader, (size_t)numBytesWithHeader);
+  void* data = MapBufferMemory(indexType, (size_t)mappedSizeWithHeader,
+                               (size_t)numBytesWithHeader);
   if (!data) {
     return nullptr;
   }
@@ -717,7 +723,8 @@
   MOZ_RELEASE_ASSERT(header->mappedSize() <= SIZE_MAX - gc::SystemPageSize());
   size_t mappedSizeWithHeader = header->mappedSize() + gc::SystemPageSize();
 
-  UnmapBufferMemory(header->basePointer(), mappedSizeWithHeader);
+  UnmapBufferMemory(header->indexType(), header->basePointer(),
+                    mappedSizeWithHeader);
 }
 
 WasmArrayRawBuffer* ArrayBufferObject::BufferContents::wasmBuffer() const {
@@ -726,15 +733,14 @@
 }
 
 template <typename ObjT, typename RawbufT>
-static bool CreateSpecificWasmBuffer32(
+static bool CreateSpecificWasmBuffer(
     JSContext* cx, const wasm::MemoryDesc& memory,
     MutableHandleArrayBufferObjectMaybeShared maybeSharedObject) {
-  bool useHugeMemory =
-      memory.indexType() == IndexType::I32 && wasm::IsHugeMemoryEnabled();
+  bool useHugeMemory = wasm::IsHugeMemoryEnabled(memory.indexType());
   Pages initialPages = memory.initialPages();
   Maybe<Pages> sourceMaxPages = memory.maximumPages();
-  Pages clampedMaxPages =
-      wasm::ClampedMaxPages(initialPages, sourceMaxPages, useHugeMemory);
+  Pages clampedMaxPages = wasm::ClampedMaxPages(
+      memory.indexType(), initialPages, sourceMaxPages, useHugeMemory);
 
   Maybe<size_t> mappedSize;
 #ifdef WASM_SUPPORTS_HUGE_MEMORY
@@ -839,9 +845,10 @@
   return true;
 }
 
-bool js::CreateWasmBuffer32(JSContext* cx, const wasm::MemoryDesc& memory,
-                            MutableHandleArrayBufferObjectMaybeShared buffer) {
-  MOZ_RELEASE_ASSERT(memory.initialPages() <= wasm::MaxMemoryPages());
+bool js::CreateWasmBuffer(JSContext* cx, const wasm::MemoryDesc& memory,
+                          MutableHandleArrayBufferObjectMaybeShared buffer) {
+  MOZ_RELEASE_ASSERT(memory.initialPages() <=
+                     wasm::MaxMemoryPages(memory.indexType()));
   MOZ_RELEASE_ASSERT(cx->wasm().haveSignalHandlers);
 
   if (memory.isShared()) {
@@ -850,10 +857,10 @@
                                 JSMSG_WASM_NO_SHMEM_LINK);
       return false;
     }
-    return CreateSpecificWasmBuffer32<SharedArrayBufferObject,
-                                      SharedArrayRawBuffer>(cx, memory, buffer);
+    return CreateSpecificWasmBuffer<SharedArrayBufferObject,
+                                    SharedArrayRawBuffer>(cx, memory, buffer);
   }
-  return CreateSpecificWasmBuffer32<ArrayBufferObject, WasmArrayRawBuffer>(
+  return CreateSpecificWasmBuffer<ArrayBufferObject, WasmArrayRawBuffer>(
       cx, memory, buffer);
 }
 
@@ -1083,7 +1090,7 @@
 
 /* static */
 bool ArrayBufferObject::wasmGrowToPagesInPlace(
-    Pages newPages, HandleArrayBufferObject oldBuf,
+    wasm::IndexType t, Pages newPages, HandleArrayBufferObject oldBuf,
     MutableHandleArrayBufferObject newBuf, JSContext* cx) {
   CheckStealPreconditions(oldBuf, cx);
 
@@ -1095,7 +1102,7 @@
   if (newPages > oldBuf->wasmClampedMaxPages()) {
     return false;
   }
-  MOZ_ASSERT(newPages <= wasm::MaxMemoryPages() &&
+  MOZ_ASSERT(newPages <= wasm::MaxMemoryPages(t) &&
              newPages.byteLength() < ArrayBufferObject::maxBufferByteLength());
 
   // We have checked against the clamped maximum and so we know we can convert
@@ -1139,7 +1146,7 @@
 
 /* static */
 bool ArrayBufferObject::wasmMovingGrowToPages(
-    Pages newPages, HandleArrayBufferObject oldBuf,
+    IndexType t, Pages newPages, HandleArrayBufferObject oldBuf,
     MutableHandleArrayBufferObject newBuf, JSContext* cx) {
   // On failure, do not throw and ensure that the original buffer is
   // unmodified and valid.
@@ -1150,7 +1157,7 @@
   if (newPages > oldBuf->wasmClampedMaxPages()) {
     return false;
   }
-  MOZ_ASSERT(newPages <= wasm::MaxMemoryPages() &&
+  MOZ_ASSERT(newPages <= wasm::MaxMemoryPages(t) &&
              newPages.byteLength() < ArrayBufferObject::maxBufferByteLength());
 
   // We have checked against the clamped maximum and so we know we can convert
@@ -1159,7 +1166,7 @@
 
   if (wasm::ComputeMappedSize(newPages) <= oldBuf->wasmMappedSize() ||
       oldBuf->contents().wasmBuffer()->extendMappedSize(newPages)) {
-    return wasmGrowToPagesInPlace(newPages, oldBuf, newBuf, cx);
+    return wasmGrowToPagesInPlace(t, newPages, oldBuf, newBuf, cx);
   }
 
   newBuf.set(ArrayBufferObject::createEmpty(cx));
@@ -1169,7 +1176,7 @@
   }
 
   Pages clampedMaxPages =
-      wasm::ClampedMaxPages(newPages, Nothing(), /* hugeMemory */ false);
+      wasm::ClampedMaxPages(t, newPages, Nothing(), /* hugeMemory */ false);
   WasmArrayRawBuffer* newRawBuf = WasmArrayRawBuffer::AllocateWasm(
       oldBuf->wasmIndexType(), newPages, clampedMaxPages, Nothing(), Nothing());
   if (!newRawBuf) {
@@ -1724,27 +1731,27 @@
   map.remove(p);
 }
 
-void InnerViewTable::sweep() { map.sweep(); }
+bool InnerViewTable::traceWeak(JSTracer* trc) { return map.traceWeak(trc); }
 
-void InnerViewTable::sweepAfterMinorGC() {
+void InnerViewTable::sweepAfterMinorGC(JSTracer* trc) {
   MOZ_ASSERT(needsSweepAfterMinorGC());
 
   if (nurseryKeysValid) {
     for (size_t i = 0; i < nurseryKeys.length(); i++) {
       JSObject* buffer = MaybeForwarded(nurseryKeys[i]);
       Map::Ptr p = map.lookup(buffer);
-      if (p && Map::SweepPolicy::needsSweep(&p->mutableKey(), &p->value())) {
+      if (p &&
+          !Map::SweepPolicy::traceWeak(trc, &p->mutableKey(), &p->value())) {
         map.remove(p);
       }
     }
-    nurseryKeys.clear();
   } else {
     // Do the required sweeping by looking at every map entry.
-    nurseryKeys.clear();
-    sweep();
-
-    nurseryKeysValid = true;
+    map.traceWeak(trc);
   }
+
+  nurseryKeys.clear();
+  nurseryKeysValid = true;
 }
 
 size_t InnerViewTable::sizeOfExcludingThis(mozilla::MallocSizeOf mallocSizeOf) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/ArrayBufferObject.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/ArrayBufferObject.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/ArrayBufferObject.h	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/ArrayBufferObject.h	2021-10-20 19:28:30.000000000 +0000
@@ -34,7 +34,8 @@
 // of size `initialCommittedSize`.  Both arguments denote bytes and must be
 // multiples of the page size, with `initialCommittedSize` <= `mappedSize`.
 // Returns nullptr on failure.
-void* MapBufferMemory(size_t mappedSize, size_t initialCommittedSize);
+void* MapBufferMemory(wasm::IndexType, size_t mappedSize,
+                      size_t initialCommittedSize);
 
 // Commit additional memory in an existing mapping.  `dataEnd` must be the
 // correct value for the end of the existing committed area, and `delta` must be
@@ -52,7 +53,7 @@
 
 // Remove an existing mapping.  `dataStart` must be the pointer to the start of
 // the mapping, and `mappedSize` the size of that mapping.
-void UnmapBufferMemory(void* dataStart, size_t mappedSize);
+void UnmapBufferMemory(wasm::IndexType t, void* dataStart, size_t mappedSize);
 
 // Return the number of currently live mapped buffers.
 int32_t LiveMappedBufferCount();
@@ -466,10 +467,12 @@
   mozilla::Maybe<wasm::Pages> wasmSourceMaxPages() const;
 
   [[nodiscard]] static bool wasmGrowToPagesInPlace(
-      wasm::Pages newPages, Handle<ArrayBufferObject*> oldBuf,
+      wasm::IndexType t, wasm::Pages newPages,
+      Handle<ArrayBufferObject*> oldBuf,
       MutableHandle<ArrayBufferObject*> newBuf, JSContext* cx);
   [[nodiscard]] static bool wasmMovingGrowToPages(
-      wasm::Pages newPages, Handle<ArrayBufferObject*> oldBuf,
+      wasm::IndexType t, wasm::Pages newPages,
+      Handle<ArrayBufferObject*> oldBuf,
       MutableHandle<ArrayBufferObject*> newBuf, JSContext* cx);
 
   static void finalize(JSFreeOp* fop, JSObject* obj);
@@ -513,9 +516,10 @@
 using HandleArrayBufferObject = Handle<ArrayBufferObject*>;
 using MutableHandleArrayBufferObject = MutableHandle<ArrayBufferObject*>;
 
-// Create a buffer for a 32-bit wasm memory.
-bool CreateWasmBuffer32(JSContext* cx, const wasm::MemoryDesc& memory,
-                        MutableHandleArrayBufferObjectMaybeShared buffer);
+// Create a buffer for a wasm memory, whose type is determined by
+// memory.indexType().
+bool CreateWasmBuffer(JSContext* cx, const wasm::MemoryDesc& memory,
+                      MutableHandleArrayBufferObjectMaybeShared buffer);
 
 // Per-compartment table that manages the relationship between array buffers
 // and the views that use their storage.
@@ -560,10 +564,10 @@
 
   // Remove references to dead objects in the table and update table entries
   // to reflect moved objects.
-  void sweep();
-  void sweepAfterMinorGC();
+  bool traceWeak(JSTracer* trc);
+  void sweepAfterMinorGC(JSTracer* trc);
 
-  bool needsSweep() const { return map.needsSweep(); }
+  bool empty() const { return map.empty(); }
 
   bool needsSweepAfterMinorGC() const {
     return !nurseryKeys.empty() || !nurseryKeysValid;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/Compartment.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/Compartment.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/Compartment.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/Compartment.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -504,13 +504,13 @@
   crossCompartmentObjectWrappers.sweepAfterMinorGC(trc);
 
   for (RealmsInCompartmentIter r(this); !r.done(); r.next()) {
-    r->sweepAfterMinorGC();
+    r->sweepAfterMinorGC(trc);
   }
 }
 
 // Remove dead wrappers from the table or update pointers to moved objects.
-void Compartment::sweepCrossCompartmentObjectWrappers() {
-  crossCompartmentObjectWrappers.sweep();
+void Compartment::traceCrossCompartmentObjectWrapperEdges(JSTracer* trc) {
+  crossCompartmentObjectWrappers.traceWeak(trc);
 }
 
 void Compartment::fixupCrossCompartmentObjectWrappersAfterMovingGC(
@@ -519,7 +519,7 @@
 
   // Sweep the wrapper map to update keys (wrapped values) in other
   // compartments that may have been moved.
-  sweepCrossCompartmentObjectWrappers();
+  traceCrossCompartmentObjectWrapperEdges(trc);
 
   // Trace the wrappers in the map to update their cross-compartment edges
   // to wrapped values in other compartments that may have been moved.
@@ -535,7 +535,7 @@
 
   // Sweep the wrapper map to update values (wrapper objects) in this
   // compartment that may have been moved.
-  sweepCrossCompartmentObjectWrappers();
+  traceCrossCompartmentObjectWrapperEdges(trc);
 }
 
 void Compartment::addSizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/Compartment.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/Compartment.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/Compartment.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/Compartment.h	2021-10-20 19:28:29.000000000 +0000
@@ -233,10 +233,10 @@
     }
   }
 
-  void sweep() {
+  void traceWeak(JSTracer* trc) {
     for (OuterMap::Enum e(map); !e.empty(); e.popFront()) {
       InnerMap& m = e.front().value();
-      m.sweep();
+      m.traceWeak(trc);
       if (m.empty()) {
         e.removeFront();
       }
@@ -422,7 +422,7 @@
 
   void sweepRealms(JSFreeOp* fop, bool keepAtleastOne, bool destroyingRuntime);
   void sweepAfterMinorGC(JSTracer* trc);
-  void sweepCrossCompartmentObjectWrappers();
+  void traceCrossCompartmentObjectWrapperEdges(JSTracer* trc);
 
   void fixupCrossCompartmentObjectWrappersAfterMovingGC(JSTracer* trc);
   void fixupAfterMovingGC(JSTracer* trc);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/CompilationAndEvaluation.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/CompilationAndEvaluation.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/CompilationAndEvaluation.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/CompilationAndEvaluation.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -422,10 +422,9 @@
 }
 
 JS_PUBLIC_API bool JS::UpdateDebugMetadata(
-    JSContext* cx, Handle<JSScript*> script,
-    const ReadOnlyCompileOptions& options, HandleValue privateValue,
-    HandleString elementAttributeName, HandleScript introScript,
-    HandleScript scriptOrModule) {
+    JSContext* cx, Handle<JSScript*> script, const InstantiateOptions& options,
+    HandleValue privateValue, HandleString elementAttributeName,
+    HandleScript introScript, HandleScript scriptOrModule) {
   RootedScriptSourceObject sso(cx, script->sourceObject());
 
   if (!ScriptSourceObject::initElementProperties(cx, sso,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/HelperThreads.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/HelperThreads.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/HelperThreads.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/HelperThreads.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -13,8 +13,8 @@
 
 #include <algorithm>
 
-#include "frontend/BytecodeCompilation.h"
-#include "frontend/BytecodeCompiler.h"
+#include "frontend/BytecodeCompilation.h"  // frontend::{CompileGlobalScriptToExtensibleStencil, FireOnNewScript, FireOnNewScripts}
+#include "frontend/BytecodeCompiler.h"  // frontend::ParseModuleToExtensibleStencil
 #include "frontend/CompilationStencil.h"  // frontend::{CompilationStencil, ExtensibleCompilationStencil, CompilationInput, CompilationGCOutput, BorrowingCompilationStencil}
 #include "frontend/ParserAtom.h"          // frontend::ParserAtomsTable
 #include "gc/GC.h"                        // gc::MergeRealms
@@ -2066,7 +2066,8 @@
     for (auto& sourceObject : parseTask->sourceObjects) {
       RootedScriptSourceObject sso(cx, sourceObject);
 
-      if (!ScriptSourceObject::initFromOptions(cx, sso, parseTask->options)) {
+      const JS::InstantiateOptions instantiateOptions(parseTask->options);
+      if (!ScriptSourceObject::initFromOptions(cx, sso, instantiateOptions)) {
         return nullptr;
       }
 
@@ -2191,9 +2192,8 @@
 
     // The Debugger only needs to be told about the topmost script that was
     // compiled.
-    if (!parseTask->options.hideFromNewScriptInitial()) {
-      DebugAPI::onNewScript(cx, script);
-    }
+    const JS::InstantiateOptions instantiateOptions(parseTask->options);
+    frontend::FireOnNewScript(cx, instantiateOptions, script);
   } else {
     MOZ_ASSERT(parseTask->stencil_.get() ||
                parseTask->extensibleStencil_.get());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/JSFunction.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/JSFunction.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/JSFunction.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/JSFunction.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -1526,7 +1526,7 @@
       .setNoScriptRval(false)
       .setIntroductionInfo(introducerFilename, introductionType, lineno,
                            pcOffset)
-      .setdeferDebugMetadata();
+      .setDeferDebugMetadata();
 
   JSStringBuilder sb(cx);
 
@@ -1663,8 +1663,10 @@
 
   RootedValue undefValue(cx);
   RootedScript funScript(cx, JS_GetFunctionScript(cx, fun));
-  if (funScript && !UpdateDebugMetadata(cx, funScript, options, undefValue,
-                                        nullptr, maybeScript, maybeScript)) {
+  JS::InstantiateOptions instantiateOptions(options);
+  if (funScript &&
+      !UpdateDebugMetadata(cx, funScript, instantiateOptions, undefValue,
+                           nullptr, maybeScript, maybeScript)) {
     return false;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/JSScript.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/JSScript.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/JSScript.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/JSScript.cpp	2021-10-20 19:28:29.000000000 +0000
@@ -31,6 +31,7 @@
 #include "jsapi.h"
 #include "jstypes.h"
 
+#include "frontend/BytecodeCompilation.h"  // frontend::FireOnNewScript
 #include "frontend/BytecodeCompiler.h"
 #include "frontend/BytecodeEmitter.h"
 #include "frontend/CompilationStencil.h"  // frontend::CompilationStencil
@@ -770,7 +771,7 @@
 
 [[nodiscard]] static bool MaybeValidateFilename(
     JSContext* cx, HandleScriptSourceObject sso,
-    const ReadOnlyCompileOptions& options) {
+    const JS::InstantiateOptions& options) {
   // When parsing off-thread we want to do filename validation on the main
   // thread. This makes off-thread parsing more pure and is simpler because we
   // can't easily throw exceptions off-thread.
@@ -781,7 +782,7 @@
   }
 
   const char* filename = sso->source()->filename();
-  if (!filename || options.skipFilenameValidation()) {
+  if (!filename || options.skipFilenameValidation) {
     return true;
   }
 
@@ -803,7 +804,7 @@
 /* static */
 bool ScriptSourceObject::initFromOptions(
     JSContext* cx, HandleScriptSourceObject source,
-    const ReadOnlyCompileOptions& options) {
+    const JS::InstantiateOptions& options) {
   cx->releaseCheck(source);
   MOZ_ASSERT(
       source->getReservedSlot(ELEMENT_PROPERTY_SLOT).isMagic(JS_GENERIC_MAGIC));
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/JSScript.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/JSScript.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/JSScript.h	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/JSScript.h	2021-10-20 19:28:30.000000000 +0000
@@ -1084,7 +1084,7 @@
   // Initialize those properties of this ScriptSourceObject whose values
   // are provided by |options|, re-wrapping as necessary.
   static bool initFromOptions(JSContext* cx, HandleScriptSourceObject source,
-                              const JS::ReadOnlyCompileOptions& options);
+                              const JS::InstantiateOptions& options);
 
   static bool initElementProperties(JSContext* cx,
                                     HandleScriptSourceObject source,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/Realm.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/Realm.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/Realm.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/Realm.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -326,17 +326,17 @@
   objects_.finishRoots();
 }
 
-void ObjectRealm::sweepAfterMinorGC() {
+void ObjectRealm::sweepAfterMinorGC(JSTracer* trc) {
   InnerViewTable& table = innerViews.get();
   if (table.needsSweepAfterMinorGC()) {
-    table.sweepAfterMinorGC();
+    table.sweepAfterMinorGC(trc);
   }
 }
 
-void Realm::sweepAfterMinorGC() {
+void Realm::sweepAfterMinorGC(JSTracer* trc) {
   globalWriteBarriered = 0;
   dtoaCache.purge();
-  objects_.sweepAfterMinorGC();
+  objects_.sweepAfterMinorGC(trc);
 }
 
 void Realm::traceWeakSavedStacks(JSTracer* trc) { savedStacks_.traceWeak(trc); }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/Realm.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/Realm.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/Realm.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/Realm.h	2021-10-20 19:28:31.000000000 +0000
@@ -265,7 +265,7 @@
 
   void finishRoots();
   void trace(JSTracer* trc);
-  void sweepAfterMinorGC();
+  void sweepAfterMinorGC(JSTracer* trc);
   void traceWeakNativeIterators(JSTracer* trc);
 
   void addSizeOfExcludingThis(mozilla::MallocSizeOf mallocSizeOf,
@@ -518,7 +518,7 @@
    */
   void finishRoots();
 
-  void sweepAfterMinorGC();
+  void sweepAfterMinorGC(JSTracer* trc);
   void traceWeakDebugEnvironmentEdges(JSTracer* trc);
   void traceWeakObjectRealm(JSTracer* trc);
   void traceWeakRegExps(JSTracer* trc);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/SelfHosting.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/SelfHosting.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/SelfHosting.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/SelfHosting.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -2823,7 +2823,9 @@
     return nullptr;
   }
 
-  if (!ScriptSourceObject::initFromOptions(cx, sourceObject, options)) {
+  JS::InstantiateOptions instantiateOptions(options);
+  if (!ScriptSourceObject::initFromOptions(cx, sourceObject,
+                                           instantiateOptions)) {
     return nullptr;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/SharedArrayObject.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/SharedArrayObject.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/SharedArrayObject.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/SharedArrayObject.cpp	2021-10-20 19:28:31.000000000 +0000
@@ -74,7 +74,8 @@
   uint64_t mappedSizeWithHeader = computedMappedSize + gc::SystemPageSize();
   uint64_t accessibleSizeWithHeader = accessibleSize + gc::SystemPageSize();
 
-  void* p = MapBufferMemory(mappedSizeWithHeader, accessibleSizeWithHeader);
+  void* p = MapBufferMemory(wasmIndexType, mappedSizeWithHeader,
+                            accessibleSizeWithHeader);
   if (!p) {
     return nullptr;
   }
@@ -99,7 +100,7 @@
     const mozilla::Maybe<wasm::Pages>& sourceMaxPages,
     const mozilla::Maybe<size_t>& mappedSize) {
   // Prior code has asserted that initial pages is within our implementation
-  // limits (wasm::MaxMemory32Pages) and we can assume it is a valid size_t.
+  // limits (wasm::MaxMemoryPages()) and we can assume it is a valid size_t.
   MOZ_ASSERT(initialPages.hasByteLength());
   size_t length = initialPages.byteLength();
   return SharedArrayRawBuffer::AllocateInternal(
@@ -129,6 +130,7 @@
 }
 
 bool SharedArrayRawBuffer::wasmGrowToPagesInPlace(const Lock&,
+                                                  wasm::IndexType t,
                                                   wasm::Pages newPages) {
   // Check that the new pages is within our allowable range. This will
   // simultaneously check against the maximum specified in source and our
@@ -136,7 +138,7 @@
   if (newPages > wasmClampedMaxPages_) {
     return false;
   }
-  MOZ_ASSERT(newPages <= wasm::MaxMemoryPages() &&
+  MOZ_ASSERT(newPages <= wasm::MaxMemoryPages(t) &&
              newPages.byteLength() < ArrayBufferObject::maxBufferByteLength());
 
   // We have checked against the clamped maximum and so we know we can convert
@@ -198,7 +200,7 @@
   size_t mappedSizeWithHeader = mappedSize_ + gc::SystemPageSize();
 
   // This was the final reference, so release the buffer.
-  UnmapBufferMemory(basePointer(), mappedSizeWithHeader);
+  UnmapBufferMemory(wasmIndexType(), basePointer(), mappedSizeWithHeader);
 }
 
 static bool IsSharedArrayBuffer(HandleValue v) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/SharedArrayObject.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/SharedArrayObject.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/SharedArrayObject.h	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/SharedArrayObject.h	2021-10-20 19:28:30.000000000 +0000
@@ -153,7 +153,8 @@
 
   void tryGrowMaxPagesInPlace(wasm::Pages deltaMaxPages);
 
-  bool wasmGrowToPagesInPlace(const Lock&, wasm::Pages newPages);
+  bool wasmGrowToPagesInPlace(const Lock&, wasm::IndexType t,
+                              wasm::Pages newPages);
 
   uint32_t refcount() const { return refcount_; }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/StructuredClone.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/StructuredClone.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/vm/StructuredClone.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/vm/StructuredClone.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -1397,7 +1397,7 @@
   }
 
   // If this changes, might need to change what we write.
-  MOZ_ASSERT(WasmMemoryObject::RESERVED_SLOTS == 2);
+  MOZ_ASSERT(WasmMemoryObject::RESERVED_SLOTS == 3);
 
   Rooted<WasmMemoryObject*> memoryObj(context(),
                                       &obj->unwrapAs<WasmMemoryObject>());
@@ -1405,6 +1405,7 @@
       context(), &memoryObj->buffer().as<SharedArrayBufferObject>());
 
   return out.writePair(SCTAG_SHARED_WASM_MEMORY_OBJECT, 0) &&
+         out.writePair(SCTAG_BOOLEAN, memoryObj->isHuge()) &&
          writeSharedArrayBuffer(sab);
 }
 
@@ -2448,6 +2449,12 @@
     return false;
   }
 
+  // Read the isHuge flag
+  RootedValue isHuge(cx);
+  if (!startRead(&isHuge)) {
+    return false;
+  }
+
   // Read the SharedArrayBuffer object.
   RootedValue payload(cx);
   if (!startRead(&payload)) {
@@ -2466,7 +2473,8 @@
 
   // Construct the memory.
   RootedObject proto(cx, &cx->global()->getPrototype(JSProto_WasmMemory));
-  RootedObject memory(cx, WasmMemoryObject::create(cx, sab, proto));
+  RootedObject memory(
+      cx, WasmMemoryObject::create(cx, sab, isHuge.toBoolean(), proto));
   if (!memory) {
     return false;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/AsmJS.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/AsmJS.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/AsmJS.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/AsmJS.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -6918,7 +6918,8 @@
       return false;
     }
 
-    imports.get().memory = WasmMemoryObject::create(cx, buffer, nullptr);
+    imports.get().memory =
+        WasmMemoryObject::create(cx, buffer, /* hugeMemory= */ false, nullptr);
     if (!imports.get().memory) {
       return false;
     }
@@ -7350,8 +7351,8 @@
     return false;
   }
 
-  // The heap length is limited by what wasm can handle.
-  if (length > MaxMemoryBytes()) {
+  // The heap length is limited by what a wasm memory32 can handle.
+  if (length > MaxMemoryBytes(IndexType::I32)) {
     return false;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/cranelift/baldrapi.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/cranelift/baldrapi.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/cranelift/baldrapi.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/cranelift/baldrapi.h	2021-10-20 19:28:31.000000000 +0000
@@ -182,14 +182,14 @@
 // ToSymbolicAddress in WasmCraneliftCompile.
 
 enum class BD_SymbolicAddress : uint32_t {
-  MemoryGrow = 0,
-  MemorySize,
-  MemoryCopy,
-  MemoryCopyShared,
+  MemoryGrow = 0,   /* MemoryGrowM32 */
+  MemorySize,       /* MemorySizeM32 */
+  MemoryCopy,       /* MemoryCopyM32 */
+  MemoryCopyShared, /* MemoryCopySharedM32 */
   DataDrop,
-  MemoryFill,
-  MemoryFillShared,
-  MemoryInit,
+  MemoryFill,       /* MemoryFillM32 */
+  MemoryFillShared, /* MemoryFillSharedM32 */
+  MemoryInit,       /* MemoryInitM32 */
   TableSize,
   TableGrow,
   TableGet,
@@ -209,9 +209,9 @@
   TruncF64,
   PreBarrier,
   PostBarrier,
-  WaitI32,
-  WaitI64,
-  Wake,
+  WaitI32, /* WaitI32M32 */
+  WaitI64, /* WaitI64M32 */
+  Wake,    /* WakeM32 */
   Limit
 };
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBaselineCompile.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBaselineCompile.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBaselineCompile.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBaselineCompile.cpp	2021-10-20 19:28:29.000000000 +0000
@@ -291,6 +291,31 @@
 #endif
 }
 
+#ifdef JS_CODEGEN_X86
+void BaseCompiler::stashI64(RegPtr regForTls, RegI64 r) {
+  MOZ_ASSERT(sizeof(TlsData::baselineScratch) >= 8);
+  MOZ_ASSERT(regForTls != r.low && regForTls != r.high);
+  fr.loadTlsPtr(regForTls);
+  masm.store32(r.low, Address(regForTls, offsetof(TlsData, baselineScratch)));
+  masm.store32(r.high,
+               Address(regForTls, offsetof(TlsData, baselineScratch) + 4));
+}
+
+void BaseCompiler::unstashI64(RegPtr regForTls, RegI64 r) {
+  MOZ_ASSERT(sizeof(TlsData::baselineScratch) >= 8);
+  fr.loadTlsPtr(regForTls);
+  if (regForTls == r.low) {
+    masm.load32(Address(regForTls, offsetof(TlsData, baselineScratch) + 4),
+                r.high);
+    masm.load32(Address(regForTls, offsetof(TlsData, baselineScratch)), r.low);
+  } else {
+    masm.load32(Address(regForTls, offsetof(TlsData, baselineScratch)), r.low);
+    masm.load32(Address(regForTls, offsetof(TlsData, baselineScratch) + 4),
+                r.high);
+  }
+}
+#endif
+
 //////////////////////////////////////////////////////////////////////////////
 //
 // Function entry and exit
@@ -5426,20 +5451,22 @@
 // Bulk memory operations.
 
 bool BaseCompiler::emitMemoryGrow() {
-  return emitInstanceCallOp(SASigMemoryGrow, [this]() -> bool {
-    Nothing arg;
-    return iter_.readMemoryGrow(&arg);
-  });
+  return emitInstanceCallOp(
+      !usesMemory() || isMem32() ? SASigMemoryGrowM32 : SASigMemoryGrowM64,
+      [this]() -> bool {
+        Nothing arg;
+        return iter_.readMemoryGrow(&arg);
+      });
 }
 
 bool BaseCompiler::emitMemorySize() {
   return emitInstanceCallOp(
-      SASigMemorySize, [this]() -> bool { return iter_.readMemorySize(); });
+      !usesMemory() || isMem32() ? SASigMemorySizeM32 : SASigMemorySizeM64,
+      [this]() -> bool { return iter_.readMemorySize(); });
 }
 
 bool BaseCompiler::emitMemCopy() {
   uint32_t lineOrBytecode = readCallSiteLineOrBytecode();
-
   uint32_t dstMemOrTableIndex = 0;
   uint32_t srcMemOrTableIndex = 0;
   Nothing nothing;
@@ -5447,63 +5474,68 @@
                                 &srcMemOrTableIndex, &nothing, &nothing)) {
     return false;
   }
-
   if (deadCode_) {
     return true;
   }
 
-  int32_t signedLength;
-  if (peekConst(&signedLength) && signedLength != 0 &&
-      uint32_t(signedLength) <= MaxInlineMemoryCopyLength) {
-    emitMemCopyInline();
-    return true;
+  if (isMem32()) {
+    int32_t signedLength;
+    if (peekConst(&signedLength) && signedLength != 0 &&
+        uint32_t(signedLength) <= MaxInlineMemoryCopyLength) {
+      memCopyInlineM32();
+      return true;
+    }
   }
 
-  return emitMemCopyCall(lineOrBytecode);
+  return memCopyCall(lineOrBytecode);
 }
 
-bool BaseCompiler::emitMemCopyCall(uint32_t lineOrBytecode) {
+bool BaseCompiler::memCopyCall(uint32_t lineOrBytecode) {
   pushHeapBase();
-  return emitInstanceCall(lineOrBytecode, usesSharedMemory()
-                                              ? SASigMemCopyShared32
-                                              : SASigMemCopy32);
+  return emitInstanceCall(
+      lineOrBytecode,
+      usesSharedMemory()
+          ? (isMem32() ? SASigMemCopySharedM32 : SASigMemCopySharedM64)
+          : (isMem32() ? SASigMemCopyM32 : SASigMemCopyM64));
 }
 
 bool BaseCompiler::emitMemFill() {
   uint32_t lineOrBytecode = readCallSiteLineOrBytecode();
-
   Nothing nothing;
   if (!iter_.readMemFill(&nothing, &nothing, &nothing)) {
     return false;
   }
-
   if (deadCode_) {
     return true;
   }
 
-  int32_t signedLength;
-  int32_t signedValue;
-  if (peek2xConst(&signedLength, &signedValue) && signedLength != 0 &&
-      uint32_t(signedLength) <= MaxInlineMemoryFillLength) {
-    emitMemFillInline();
-    return true;
+  if (isMem32()) {
+    int32_t signedLength;
+    int32_t signedValue;
+    if (peek2xConst(&signedLength, &signedValue) && signedLength != 0 &&
+        uint32_t(signedLength) <= MaxInlineMemoryFillLength) {
+      memFillInlineM32();
+      return true;
+    }
   }
-  return emitMemFillCall(lineOrBytecode);
+  return memFillCall(lineOrBytecode);
 }
 
-bool BaseCompiler::emitMemFillCall(uint32_t lineOrBytecode) {
+bool BaseCompiler::memFillCall(uint32_t lineOrBytecode) {
   pushHeapBase();
-  return emitInstanceCall(lineOrBytecode, usesSharedMemory()
-                                              ? SASigMemFillShared32
-                                              : SASigMemFill32);
+  return emitInstanceCall(
+      lineOrBytecode,
+      usesSharedMemory()
+          ? (isMem32() ? SASigMemFillSharedM32 : SASigMemFillSharedM64)
+          : (isMem32() ? SASigMemFillM32 : SASigMemFillM64));
 }
 
 bool BaseCompiler::emitMemInit() {
   return emitInstanceCallOp<uint32_t>(
-      SASigMemInit32, [this](uint32_t* segIndex) -> bool {
-        uint32_t dstTableIndex;
+      (!usesMemory() || isMem32() ? SASigMemInitM32 : SASigMemInitM64),
+      [this](uint32_t* segIndex) -> bool {
         Nothing nothing;
-        if (iter_.readMemOrTableInit(/*isMem*/ true, segIndex, &dstTableIndex,
+        if (iter_.readMemOrTableInit(/*isMem*/ true, segIndex, nullptr,
                                      &nothing, &nothing, &nothing)) {
           return true;
         }
@@ -9713,6 +9745,9 @@
 }
 
 bool BaseCompiler::init() {
+  // We may lift this restriction in the future.
+  MOZ_ASSERT_IF(usesMemory() && isMem64(), !moduleEnv_.hugeMemoryEnabled());
+
   ra.init(this);
 
   if (!SigD_.append(ValType::F64)) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBCClass.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBCClass.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBCClass.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBCClass.h	2021-10-20 19:28:31.000000000 +0000
@@ -320,7 +320,10 @@
 
   inline const FuncType& funcType() const;
   inline const TypeIdDesc& funcTypeId() const;
+  inline bool usesMemory() const;
   inline bool usesSharedMemory() const;
+  inline bool isMem32() const;
+  inline bool isMem64() const;
 
   // The casts are used by some of the ScratchRegister implementations.
   operator MacroAssembler&() const { return masm; }
@@ -455,15 +458,20 @@
   // Return the 32-bit low part of the 64-bit register, do not free anything.
   inline RegI32 fromI64(RegI64 r);
 
+  // If r is valid, return fromI64(r), otherwise an invalid RegI32.
+  inline RegI32 maybeFromI64(RegI64 r);
+
 #ifdef JS_PUNBOX64
   // On 64-bit systems, reinterpret r as 64-bit.
   inline RegI64 fromI32(RegI32 r);
 #endif
 
   // Widen r to 64 bits; this may allocate another register to form a pair.
+  // Note this does not generate code for sign/zero extension.
   inline RegI64 widenI32(RegI32 r);
 
-  // Narrow r to 32 bits; this may free part of a pair.
+  // Narrow r to 32 bits; this may free part of a pair.  Note this does not
+  // generate code to canonicalize the value on 64-bit systems.
   inline RegI32 narrowI64(RegI64 r);
   inline RegI32 narrowRef(RegRef r);
 
@@ -687,6 +695,7 @@
 
   // Constant poppers will return true and pop the value if the stack top is a
   // constant of the appropriate type; otherwise pop nothing and return false.
+  [[nodiscard]] inline bool hasConst() const;
   [[nodiscard]] inline bool popConst(int32_t* c);
   [[nodiscard]] inline bool popConst(int64_t* c);
   [[nodiscard]] inline bool peekConst(int32_t* c);
@@ -737,8 +746,9 @@
   // register.
   inline void peekRefAt(uint32_t depth, RegRef dest);
 
-  // DOCUMENTME
-  [[nodiscard]] inline bool peekLocalI32(uint32_t* local);
+  // Peek at the value on the top of the stack and return true if it is a Local
+  // of any type.
+  [[nodiscard]] inline bool peekLocal(uint32_t* local);
 
   ////////////////////////////////////////////////////////////////////////////
   //
@@ -1015,6 +1025,16 @@
   inline void branchTo(Assembler::Condition c, RegRef lhs, ImmWord rhs,
                        Label* l);
 
+#ifdef JS_CODEGEN_X86
+  // Store r in tls scratch storage after first loading the tls from the frame
+  // into the regForTls.  regForTls must be neither of the registers in r.
+  void stashI64(RegPtr regForTls, RegI64 r);
+
+  // Load r from the tls scratch storage after first loading the tls from the
+  // frame into the regForTls.  regForTls can be one of the registers in r.
+  void unstashI64(RegPtr regForTls, RegI64 r);
+#endif
+
   //////////////////////////////////////////////////////////////////////
   //
   // Code generators for actual operations.
@@ -1058,49 +1078,107 @@
   void bceCheckLocal(MemoryAccessDesc* access, AccessCheck* check,
                      uint32_t local);
   void bceLocalIsUpdated(uint32_t local);
+
+  // Fold offsets into ptr and bounds check as necessary.  The tls will be valid
+  // in cases where it's needed.
+  template <typename RegIndexType>
   void prepareMemoryAccess(MemoryAccessDesc* access, AccessCheck* check,
-                           RegPtr tls, RegI32 ptr);
+                           RegPtr tls, RegIndexType ptr);
+
+  void branchAddNoOverflow(Imm32 offset, RegI32 ptr, Label* ok);
+  void branchTestLowZero(RegI32 ptr, Imm32 mask, Label* ok);
+  void boundsCheck4GBOrLargerAccess(RegPtr tls, RegI32 ptr, Label* ok);
+  void boundsCheckBelow4GBAccess(RegPtr tls, RegI32 ptr, Label* ok);
+
+  void branchAddNoOverflow(Imm32 offset, RegI64 ptr, Label* ok);
+  void branchTestLowZero(RegI64 ptr, Imm32 mask, Label* ok);
+  void boundsCheck4GBOrLargerAccess(RegPtr tls, RegI64 ptr, Label* ok);
+  void boundsCheckBelow4GBAccess(RegPtr tls, RegI64 ptr, Label* ok);
 
 #if defined(RABALDR_HAS_HEAPREG)
+  template <typename RegIndexType>
   BaseIndex prepareAtomicMemoryAccess(MemoryAccessDesc* access,
                                       AccessCheck* check, RegPtr tls,
-                                      RegI32 ptr);
+                                      RegIndexType ptr);
 #else
   // Some consumers depend on the returned Address not incorporating tls, as tls
   // may be the scratch register.
+  template <typename RegIndexType>
   Address prepareAtomicMemoryAccess(MemoryAccessDesc* access,
-                                    AccessCheck* check, RegPtr tls, RegI32 ptr);
+                                    AccessCheck* check, RegPtr tls,
+                                    RegIndexType ptr);
 #endif
+
+  template <typename RegIndexType>
   void computeEffectiveAddress(MemoryAccessDesc* access);
+
   [[nodiscard]] bool needTlsForAccess(const AccessCheck& check);
 
   // ptr and dest may be the same iff dest is I32.
   // This may destroy ptr even if ptr and dest are not the same.
+  void executeLoad(MemoryAccessDesc* access, AccessCheck* check, RegPtr tls,
+                   RegI32 ptr, AnyReg dest, RegI32 temp);
   void load(MemoryAccessDesc* access, AccessCheck* check, RegPtr tls,
             RegI32 ptr, AnyReg dest, RegI32 temp);
+#ifdef ENABLE_WASM_MEMORY64
+  void load(MemoryAccessDesc* access, AccessCheck* check, RegPtr tls,
+            RegI64 ptr, AnyReg dest, RegI64 temp);
+#endif
+
+  template <typename RegType>
+  void doLoadCommon(MemoryAccessDesc* access, AccessCheck check, ValType type);
+
+  void loadCommon(MemoryAccessDesc* access, AccessCheck check, ValType type);
 
   // ptr and src must not be the same register.
   // This may destroy ptr and src.
+  void executeStore(MemoryAccessDesc* access, AccessCheck* check, RegPtr tls,
+                    RegI32 ptr, AnyReg src, RegI32 temp);
   void store(MemoryAccessDesc* access, AccessCheck* check, RegPtr tls,
              RegI32 ptr, AnyReg src, RegI32 temp);
+#ifdef ENABLE_WASM_MEMORY64
+  void store(MemoryAccessDesc* access, AccessCheck* check, RegPtr tls,
+             RegI64 ptr, AnyReg src, RegI64 temp);
+#endif
+
+  template <typename RegType>
+  void doStoreCommon(MemoryAccessDesc* access, AccessCheck check,
+                     ValType resultType);
 
-  void loadCommon(MemoryAccessDesc* access, AccessCheck check, ValType type);
   void storeCommon(MemoryAccessDesc* access, AccessCheck check,
                    ValType resultType);
 
   void atomicLoad(MemoryAccessDesc* access, ValType type);
+#if !defined(JS_64BIT)
+  template <typename RegIndexType>
+  void atomicLoad64(MemoryAccessDesc* desc);
+#endif
+
   void atomicStore(MemoryAccessDesc* access, ValType type);
+
   void atomicRMW(MemoryAccessDesc* access, ValType type, AtomicOp op);
+  template <typename RegIndexType>
   void atomicRMW32(MemoryAccessDesc* access, ValType type, AtomicOp op);
+  template <typename RegIndexType>
   void atomicRMW64(MemoryAccessDesc* access, ValType type, AtomicOp op);
+
   void atomicXchg(MemoryAccessDesc* desc, ValType type);
+  template <typename RegIndexType>
   void atomicXchg64(MemoryAccessDesc* access, WantResult wantResult);
+  template <typename RegIndexType>
   void atomicXchg32(MemoryAccessDesc* access, ValType type);
+
   void atomicCmpXchg(MemoryAccessDesc* access, ValType type);
+  template <typename RegIndexType>
   void atomicCmpXchg32(MemoryAccessDesc* access, ValType type);
+  template <typename RegIndexType>
   void atomicCmpXchg64(MemoryAccessDesc* access, ValType type);
 
-  RegI32 popMemory32Access(MemoryAccessDesc* access, AccessCheck* check);
+  template <typename RegType>
+  RegType popConstMemoryAccess(MemoryAccessDesc* access, AccessCheck* check);
+  template <typename RegType>
+  RegType popMemoryAccess(MemoryAccessDesc* access, AccessCheck* check);
+
   void pushHeapBase();
 
   ////////////////////////////////////////////////////////////////////////////
@@ -1436,13 +1514,13 @@
   [[nodiscard]] bool emitAtomicXchg(ValType type, Scalar::Type viewType);
   [[nodiscard]] bool emitMemInit();
   [[nodiscard]] bool emitMemCopy();
-  [[nodiscard]] bool emitMemCopyCall(uint32_t lineOrBytecode);
-  void emitMemCopyInline();
+  [[nodiscard]] bool memCopyCall(uint32_t lineOrBytecode);
+  void memCopyInlineM32();
   [[nodiscard]] bool emitTableCopy();
   [[nodiscard]] bool emitDataOrElemDrop(bool isData);
   [[nodiscard]] bool emitMemFill();
-  [[nodiscard]] bool emitMemFillCall(uint32_t lineOrBytecode);
-  void emitMemFillInline();
+  [[nodiscard]] bool memFillCall(uint32_t lineOrBytecode);
+  void memFillInlineM32();
   [[nodiscard]] bool emitTableInit();
   [[nodiscard]] bool emitTableFill();
   [[nodiscard]] bool emitTableGet();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBCClass-inl.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBCClass-inl.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBCClass-inl.h	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBCClass-inl.h	2021-10-20 19:28:30.000000000 +0000
@@ -33,6 +33,8 @@
   return *moduleEnv_.funcs[func_.index].typeId;
 }
 
+bool BaseCompiler::usesMemory() const { return moduleEnv_.usesMemory(); }
+
 bool BaseCompiler::usesSharedMemory() const {
   return moduleEnv_.usesSharedMemory();
 }
@@ -53,6 +55,14 @@
   return iter_.bytecodeOffset();
 }
 
+bool BaseCompiler::isMem32() const {
+  return moduleEnv_.memory->indexType() == IndexType::I32;
+}
+
+bool BaseCompiler::isMem64() const {
+  return moduleEnv_.memory->indexType() == IndexType::I64;
+}
+
 }  // namespace wasm
 }  // namespace js
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBCMemory.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBCMemory.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBCMemory.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBCMemory.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -96,6 +96,9 @@
   uint32_t offsetGuardLimit =
       GetMaxOffsetGuardLimit(moduleEnv_.hugeMemoryEnabled());
 
+  // 64-bit offset will be supported later.
+  static_assert(sizeof(access->offset()) == sizeof(uint32_t));
+
   if ((bceSafe_ & (BCESet(1) << local)) &&
       access->offset() < offsetGuardLimit) {
     check->omitBoundsCheck = true;
@@ -123,43 +126,87 @@
 // (In addition, alignment checking of the pointer can be omitted if the pointer
 // has been checked in dominating code, but we don't do that yet.)
 
-RegI32 BaseCompiler::popMemory32Access(MemoryAccessDesc* access,
-                                       AccessCheck* check) {
-  check->onlyPointerAlignment =
-      (access->offset() & (access->byteSize() - 1)) == 0;
-
+template <>
+RegI32 BaseCompiler::popConstMemoryAccess<RegI32>(MemoryAccessDesc* access,
+                                                  AccessCheck* check) {
   int32_t addrTemp;
-  if (popConst(&addrTemp)) {
-    uint32_t addr = addrTemp;
+  MOZ_ALWAYS_TRUE(popConst(&addrTemp));
+  uint32_t addr = addrTemp;
+
+  uint32_t offsetGuardLimit =
+      GetMaxOffsetGuardLimit(moduleEnv_.hugeMemoryEnabled());
+
+  // 64-bit offset will be supported later.
+  static_assert(sizeof(access->offset()) == sizeof(uint32_t));
+
+  uint64_t ea = uint64_t(addr) + uint64_t(access->offset());
+  uint64_t limit = moduleEnv_.memory->initialLength32() + offsetGuardLimit;
 
-    uint32_t offsetGuardLimit =
-        GetMaxOffsetGuardLimit(moduleEnv_.hugeMemoryEnabled());
+  check->omitBoundsCheck = ea < limit;
+  check->omitAlignmentCheck = (ea & (access->byteSize() - 1)) == 0;
 
-    uint64_t ea = uint64_t(addr) + uint64_t(access->offset());
-    uint64_t limit = moduleEnv_.memory->initialLength32() + offsetGuardLimit;
+  // Fold the offset into the pointer if we can, as this is always
+  // beneficial.
+  if (ea <= UINT32_MAX) {
+    addr = uint32_t(ea);
+    access->clearOffset();
+  }
+
+  RegI32 r = needI32();
+  moveImm32(int32_t(addr), r);
+  return r;
+}
+
+template <>
+RegI64 BaseCompiler::popConstMemoryAccess<RegI64>(MemoryAccessDesc* access,
+                                                  AccessCheck* check) {
+  int64_t addrTemp;
+  MOZ_ALWAYS_TRUE(popConst(&addrTemp));
+  uint64_t addr = addrTemp;
+
+  uint32_t offsetGuardLimit =
+      GetMaxOffsetGuardLimit(moduleEnv_.hugeMemoryEnabled());
 
+  // 64-bit offset will be supported later.
+  static_assert(sizeof(access->offset()) == sizeof(uint32_t));
+
+  uint64_t ea = addr + uint64_t(access->offset());
+  bool overflow = ea < addr;
+  uint64_t limit = moduleEnv_.memory->initialLength64() + offsetGuardLimit;
+
+  if (!overflow) {
     check->omitBoundsCheck = ea < limit;
     check->omitAlignmentCheck = (ea & (access->byteSize() - 1)) == 0;
 
     // Fold the offset into the pointer if we can, as this is always
     // beneficial.
+    addr = uint64_t(ea);
+    access->clearOffset();
+  }
 
-    if (ea <= UINT32_MAX) {
-      addr = uint32_t(ea);
-      access->clearOffset();
-    }
+  RegI64 r = needI64();
+  moveImm64(int64_t(addr), r);
+  return r;
+}
+
+template <typename RegType>
+RegType BaseCompiler::popMemoryAccess(MemoryAccessDesc* access,
+                                      AccessCheck* check) {
+  check->onlyPointerAlignment =
+      (access->offset() & (access->byteSize() - 1)) == 0;
 
-    RegI32 r = needI32();
-    moveImm32(int32_t(addr), r);
-    return r;
+  // If there's a constant it will have the correct type for RegType.
+  if (hasConst()) {
+    return popConstMemoryAccess<RegType>(access, check);
   }
 
+  // If there's a local it will have the correct type for RegType.
   uint32_t local;
-  if (peekLocalI32(&local)) {
+  if (peekLocal(&local)) {
     bceCheckLocal(access, check, local);
   }
 
-  return popI32();
+  return pop<RegType>();
 }
 
 #ifdef JS_64BIT
@@ -195,18 +242,105 @@
 }
 #endif
 
+void BaseCompiler::branchAddNoOverflow(Imm32 offset, RegI32 ptr, Label* ok) {
+  masm.branchAdd32(Assembler::CarryClear, offset, ptr, ok);
+}
+
+void BaseCompiler::branchAddNoOverflow(Imm32 offset, RegI64 ptr, Label* ok) {
+#if defined(JS_64BIT)
+  masm.branchAddPtr(Assembler::CarryClear, offset, Register64(ptr).reg, ok);
+#else
+  masm.branchAdd64(Assembler::CarryClear, offset, ptr, ok);
+#endif
+}
+
+void BaseCompiler::branchTestLowZero(RegI32 ptr, Imm32 mask, Label* ok) {
+  masm.branchTest32(Assembler::Zero, ptr, mask, ok);
+}
+
+void BaseCompiler::branchTestLowZero(RegI64 ptr, Imm32 mask, Label* ok) {
+#ifdef JS_64BIT
+  masm.branchTestPtr(Assembler::Zero, Register64(ptr).reg, mask, ok);
+#else
+  masm.branchTestPtr(Assembler::Zero, ptr.low, mask, ok);
+#endif
+}
+
+void BaseCompiler::boundsCheck4GBOrLargerAccess(RegPtr tls, RegI32 ptr,
+                                                Label* ok) {
+#ifdef JS_64BIT
+  // Extend the value to 64 bits, check the 64-bit value against the 64-bit
+  // bound, then chop back to 32 bits.  On most platform the extending and
+  // chopping are no-ops.  It's important that the value we end up with has
+  // flowed through the Spectre mask
+
+  // Note, ptr and ptr64 are the same register.
+  RegI64 ptr64 = fromI32(ptr);
+
+  // In principle there may be non-zero bits in the upper bits of the
+  // register; clear them.
+#  ifdef RABALDR_ZERO_EXTENDS
+  masm.assertCanonicalInt32(ptr);
+#  else
+  MOZ_CRASH("Platform code needed here");
+#  endif
+
+  boundsCheck4GBOrLargerAccess(tls, ptr64, ok);
+
+  // Restore the value to the canonical form for a 32-bit value in a
+  // 64-bit register and/or the appropriate form for further use in the
+  // indexing instruction.
+#  ifdef RABALDR_ZERO_EXTENDS
+  // The canonical value is zero-extended; we already have that.
+#  else
+  MOZ_CRASH("Platform code needed here");
+#  endif
+#else
+  // No support needed, we have max 2GB heap on 32-bit
+  MOZ_CRASH("No 32-bit support");
+#endif
+}
+
+void BaseCompiler::boundsCheckBelow4GBAccess(RegPtr tls, RegI32 ptr,
+                                             Label* ok) {
+  // If the memory's max size is known to be smaller than 64K pages exactly,
+  // we can use a 32-bit check and avoid extension and wrapping.
+  masm.wasmBoundsCheck32(Assembler::Below, ptr,
+                         Address(tls, offsetof(TlsData, boundsCheckLimit)), ok);
+}
+
+void BaseCompiler::boundsCheck4GBOrLargerAccess(RegPtr tls, RegI64 ptr,
+                                                Label* ok) {
+  // Any Spectre mitigation will appear to update the ptr64 register.
+  masm.wasmBoundsCheck64(Assembler::Below, ptr,
+                         Address(tls, offsetof(TlsData, boundsCheckLimit)), ok);
+}
+
+void BaseCompiler::boundsCheckBelow4GBAccess(RegPtr tls, RegI64 ptr,
+                                             Label* ok) {
+  // The bounds check limit is valid to 64 bits, so there's no sense in doing
+  // anything complicated here.  There may be optimization paths here in the
+  // future and they may differ on 32-bit and 64-bit.
+  boundsCheck4GBOrLargerAccess(tls, ptr, ok);
+}
+
+// RegIndexType is RegI32 for Memory32 and RegI64 for Memory64.
+template <typename RegIndexType>
 void BaseCompiler::prepareMemoryAccess(MemoryAccessDesc* access,
                                        AccessCheck* check, RegPtr tls,
-                                       RegI32 ptr) {
+                                       RegIndexType ptr) {
   uint32_t offsetGuardLimit =
       GetMaxOffsetGuardLimit(moduleEnv_.hugeMemoryEnabled());
 
+  // 64-bit offset will be supported later.
+  static_assert(sizeof(access->offset()) == sizeof(uint32_t));
+
   // Fold offset if necessary for further computations.
   if (access->offset() >= offsetGuardLimit ||
       (access->isAtomic() && !check->omitAlignmentCheck &&
        !check->onlyPointerAlignment)) {
     Label ok;
-    masm.branchAdd32(Assembler::CarryClear, Imm32(access->offset()), ptr, &ok);
+    branchAddNoOverflow(Imm32(access->offset()), ptr, &ok);
     masm.wasmTrap(Trap::OutOfBounds, bytecodeOffset());
     masm.bind(&ok);
     access->clearOffset();
@@ -219,7 +353,7 @@
     MOZ_ASSERT(check->onlyPointerAlignment);
     // We only care about the low pointer bits here.
     Label ok;
-    masm.branchTest32(Assembler::Zero, ptr, Imm32(access->byteSize() - 1), &ok);
+    branchTestLowZero(ptr, Imm32(access->byteSize() - 1), &ok);
     masm.wasmTrap(Trap::UnalignedAccess, bytecodeOffset());
     masm.bind(&ok);
   }
@@ -241,63 +375,35 @@
   if (!moduleEnv_.hugeMemoryEnabled() && !check->omitBoundsCheck) {
     Label ok;
 #ifdef JS_64BIT
-    // If the bounds check uses the full 64 bits of the bounds check limit,
-    // then the index must be zero-extended to 64 bits before checking and
-    // wrapped back to 32-bits after Spectre masking.  (And it's important
-    // that the value we end up with has flowed through the Spectre mask.)
-    //
-    // If the memory's max size is known to be smaller than 64K pages exactly,
-    // we can use a 32-bit check and avoid extension and wrapping.
+    // The checking depends on how many bits are in the pointer and how many
+    // bits are in the bound.
     if (!moduleEnv_.memory->boundsCheckLimitIs32Bits() &&
         ArrayBufferObject::maxBufferByteLength() >= 0x100000000) {
-      // Note, ptr and ptr64 are the same register.
-      RegI64 ptr64 = fromI32(ptr);
-
-      // In principle there may be non-zero bits in the upper bits of the
-      // register; clear them.
-#  ifdef RABALDR_ZERO_EXTENDS
-      masm.assertCanonicalInt32(ptr);
-#  else
-      MOZ_CRASH("Platform code needed here");
-#  endif
-
-      // Any Spectre mitigation will appear to update the ptr64 register.
-      masm.wasmBoundsCheck64(Assembler::Below, ptr64,
-                             Address(tls, offsetof(TlsData, boundsCheckLimit)),
-                             &ok);
-
-      // Restore the value to the canonical form for a 32-bit value in a
-      // 64-bit register and/or the appropriate form for further use in the
-      // indexing instruction.
-#  ifdef RABALDR_ZERO_EXTENDS
-      // The canonical value is zero-extended; we already have that.
-#  else
-      MOZ_CRASH("Platform code needed here");
-#  endif
+      boundsCheck4GBOrLargerAccess(tls, ptr, &ok);
     } else {
-      masm.wasmBoundsCheck32(Assembler::Below, ptr,
-                             Address(tls, offsetof(TlsData, boundsCheckLimit)),
-                             &ok);
+      boundsCheckBelow4GBAccess(tls, ptr, &ok);
     }
 #else
-    masm.wasmBoundsCheck32(Assembler::Below, ptr,
-                           Address(tls, offsetof(TlsData, boundsCheckLimit)),
-                           &ok);
+    boundsCheckBelow4GBAccess(tls, ptr, &ok);
 #endif
     masm.wasmTrap(Trap::OutOfBounds, bytecodeOffset());
     masm.bind(&ok);
   }
 }
 
+template <typename RegIndexType>
 void BaseCompiler::computeEffectiveAddress(MemoryAccessDesc* access) {
+  // 64-bit offset will be supported later.
+  static_assert(sizeof(access->offset()) == sizeof(uint32_t));
+
   if (access->offset()) {
     Label ok;
-    RegI32 ptr = popI32();
-    masm.branchAdd32(Assembler::CarryClear, Imm32(access->offset()), ptr, &ok);
+    RegIndexType ptr = pop<RegIndexType>();
+    branchAddNoOverflow(Imm32(access->offset()), ptr, &ok);
     masm.wasmTrap(Trap::OutOfBounds, bytecodeOffset());
     masm.bind(&ok);
     access->clearOffset();
-    pushI32(ptr);
+    push(ptr);
   }
 }
 
@@ -332,11 +438,11 @@
 //
 // Load and store.
 
-// ptr and dest may be the same iff dest is I32.
-// This may destroy ptr even if ptr and dest are not the same.
-void BaseCompiler::load(MemoryAccessDesc* access, AccessCheck* check,
-                        RegPtr tls, RegI32 ptr, AnyReg dest, RegI32 temp) {
-  prepareMemoryAccess(access, check, tls, ptr);
+void BaseCompiler::executeLoad(MemoryAccessDesc* access, AccessCheck* check,
+                               RegPtr tls, RegI32 ptr, AnyReg dest,
+                               RegI32 temp) {
+  // 64-bit offset will be supported later.
+  static_assert(sizeof(access->offset()) == sizeof(uint32_t));
 
 #if defined(JS_CODEGEN_X64)
   MOZ_ASSERT(temp.isInvalid());
@@ -404,12 +510,42 @@
 #endif
 }
 
-// ptr and src must not be the same register.
-// This may destroy ptr and src.
-void BaseCompiler::store(MemoryAccessDesc* access, AccessCheck* check,
-                         RegPtr tls, RegI32 ptr, AnyReg src, RegI32 temp) {
+// ptr and dest may be the same iff dest is I32.
+// This may destroy ptr even if ptr and dest are not the same.
+void BaseCompiler::load(MemoryAccessDesc* access, AccessCheck* check,
+                        RegPtr tls, RegI32 ptr, AnyReg dest, RegI32 temp) {
+  prepareMemoryAccess(access, check, tls, ptr);
+  executeLoad(access, check, tls, ptr, dest, temp);
+}
+
+#ifdef ENABLE_WASM_MEMORY64
+void BaseCompiler::load(MemoryAccessDesc* access, AccessCheck* check,
+                        RegPtr tls, RegI64 ptr, AnyReg dest, RegI64 temp) {
   prepareMemoryAccess(access, check, tls, ptr);
 
+#  if !defined(JS_64BIT)
+  // On 32-bit systems we have a maximum 2GB heap and bounds checking has
+  // been applied to ensure that the 64-bit pointer is valid.
+  return executeLoad(access, check, tls, RegI32(ptr.low), dest,
+                     maybeFromI64(temp));
+#  elif defined(JS_CODEGEN_X64) || defined(JS_CODEGEN_ARM64)
+  // On x64 and arm64 the 32-bit code simply assumes that the high bits of the
+  // 64-bit pointer register are zero and performs a 64-bit add.  Thus the code
+  // generated is the same for the 64-bit and the 32-bit case.
+  return executeLoad(access, check, tls, RegI32(ptr.reg), dest,
+                     maybeFromI64(temp));
+#  else
+  MOZ_CRASH("Missing platform hook");
+#  endif
+}
+#endif
+
+void BaseCompiler::executeStore(MemoryAccessDesc* access, AccessCheck* check,
+                                RegPtr tls, RegI32 ptr, AnyReg src,
+                                RegI32 temp) {
+  // 64-bit offset will be supported later.
+  static_assert(sizeof(access->offset()) == sizeof(uint32_t));
+
   // Emit the store
 #if defined(JS_CODEGEN_X64)
   MOZ_ASSERT(temp.isInvalid());
@@ -488,65 +624,93 @@
 #endif
 }
 
-void BaseCompiler::loadCommon(MemoryAccessDesc* access, AccessCheck check,
-                              ValType type) {
+// ptr and src must not be the same register.
+// This may destroy ptr and src.
+void BaseCompiler::store(MemoryAccessDesc* access, AccessCheck* check,
+                         RegPtr tls, RegI32 ptr, AnyReg src, RegI32 temp) {
+  prepareMemoryAccess(access, check, tls, ptr);
+  executeStore(access, check, tls, ptr, src, temp);
+}
+
+#ifdef ENABLE_WASM_MEMORY64
+void BaseCompiler::store(MemoryAccessDesc* access, AccessCheck* check,
+                         RegPtr tls, RegI64 ptr, AnyReg src, RegI64 temp) {
+  prepareMemoryAccess(access, check, tls, ptr);
+  // See comments in load()
+#  if !defined(JS_64BIT)
+  return executeStore(access, check, tls, RegI32(ptr.low), src,
+                      maybeFromI64(temp));
+#  elif defined(JS_CODEGEN_X64) || defined(JS_CODEGEN_ARM64)
+  return executeStore(access, check, tls, RegI32(ptr.reg), src,
+                      maybeFromI64(temp));
+#  else
+  MOZ_CRASH("Missing platform hook");
+#  endif
+}
+#endif
+
+template <typename RegType>
+void BaseCompiler::doLoadCommon(MemoryAccessDesc* access, AccessCheck check,
+                                ValType type) {
   RegPtr tls;
-  RegI32 temp;
+  RegType temp;
 #if defined(JS_CODEGEN_MIPS64)
-  temp = needI32();
+  temp = need<RegType>();
 #endif
 
   switch (type.kind()) {
     case ValType::I32: {
-      RegI32 rp = popMemory32Access(access, &check);
+      RegType rp = popMemoryAccess<RegType>(access, &check);
+      RegI32 rv = needI32();
       tls = maybeLoadTlsForAccess(check);
-      load(access, &check, tls, rp, AnyReg(rp), temp);
-      pushI32(rp);
+      load(access, &check, tls, rp, AnyReg(rv), temp);
+      push(rv);
+      free(rp);
       break;
     }
     case ValType::I64: {
       RegI64 rv;
-      RegI32 rp;
+      RegType rp;
 #ifdef JS_CODEGEN_X86
       rv = specific_.abiReturnRegI64;
       needI64(rv);
-      rp = popMemory32Access(access, &check);
+      rp = popMemoryAccess<RegType>(access, &check);
 #else
-      rp = popMemory32Access(access, &check);
+      rp = popMemoryAccess<RegType>(access, &check);
       rv = needI64();
 #endif
       tls = maybeLoadTlsForAccess(check);
       load(access, &check, tls, rp, AnyReg(rv), temp);
-      pushI64(rv);
-      freeI32(rp);
+      push(rv);
+      free(rp);
       break;
     }
     case ValType::F32: {
-      RegI32 rp = popMemory32Access(access, &check);
+      RegType rp = popMemoryAccess<RegType>(access, &check);
       RegF32 rv = needF32();
       tls = maybeLoadTlsForAccess(check);
       load(access, &check, tls, rp, AnyReg(rv), temp);
-      pushF32(rv);
-      freeI32(rp);
+      push(rv);
+      free(rp);
       break;
     }
     case ValType::F64: {
-      RegI32 rp = popMemory32Access(access, &check);
+      RegType rp = popMemoryAccess<RegType>(access, &check);
       RegF64 rv = needF64();
       tls = maybeLoadTlsForAccess(check);
       load(access, &check, tls, rp, AnyReg(rv), temp);
-      pushF64(rv);
-      freeI32(rp);
+      push(rv);
+      free(rp);
       break;
     }
 #ifdef ENABLE_WASM_SIMD
     case ValType::V128: {
-      RegI32 rp = popMemory32Access(access, &check);
+      RegType rp = popMemoryAccess<RegType>(access, &check);
       RegV128 rv = needV128();
       tls = maybeLoadTlsForAccess(check);
       load(access, &check, tls, rp, AnyReg(rv), temp);
-      pushV128(rv);
-      freeI32(rp);
+      push(rv);
+      free(rp);
       break;
     }
 #endif
@@ -559,59 +723,73 @@
   maybeFree(temp);
 }
 
-void BaseCompiler::storeCommon(MemoryAccessDesc* access, AccessCheck check,
-                               ValType resultType) {
+void BaseCompiler::loadCommon(MemoryAccessDesc* access, AccessCheck check,
+                              ValType type) {
+  if (isMem32()) {
+    doLoadCommon<RegI32>(access, check, type);
+  } else {
+#ifdef ENABLE_WASM_MEMORY64
+    doLoadCommon<RegI64>(access, check, type);
+#else
+    MOZ_CRASH("Memory64 not enabled / supported on this platform");
+#endif
+  }
+}
+
+template <typename RegType>
+void BaseCompiler::doStoreCommon(MemoryAccessDesc* access, AccessCheck check,
+                                 ValType resultType) {
   RegPtr tls;
-  RegI32 temp;
+  RegType temp;
 #if defined(JS_CODEGEN_MIPS64)
-  temp = needI32();
+  temp = need<RegType>();
 #endif
 
   switch (resultType.kind()) {
     case ValType::I32: {
       RegI32 rv = popI32();
-      RegI32 rp = popMemory32Access(access, &check);
+      RegType rp = popMemoryAccess<RegType>(access, &check);
       tls = maybeLoadTlsForAccess(check);
       store(access, &check, tls, rp, AnyReg(rv), temp);
-      freeI32(rp);
-      freeI32(rv);
+      free(rp);
+      free(rv);
       break;
     }
     case ValType::I64: {
       RegI64 rv = popI64();
-      RegI32 rp = popMemory32Access(access, &check);
+      RegType rp = popMemoryAccess<RegType>(access, &check);
       tls = maybeLoadTlsForAccess(check);
       store(access, &check, tls, rp, AnyReg(rv), temp);
-      freeI32(rp);
-      freeI64(rv);
+      free(rp);
+      free(rv);
       break;
     }
     case ValType::F32: {
       RegF32 rv = popF32();
-      RegI32 rp = popMemory32Access(access, &check);
+      RegType rp = popMemoryAccess<RegType>(access, &check);
       tls = maybeLoadTlsForAccess(check);
       store(access, &check, tls, rp, AnyReg(rv), temp);
-      freeI32(rp);
-      freeF32(rv);
+      free(rp);
+      free(rv);
       break;
     }
     case ValType::F64: {
       RegF64 rv = popF64();
-      RegI32 rp = popMemory32Access(access, &check);
+      RegType rp = popMemoryAccess<RegType>(access, &check);
       tls = maybeLoadTlsForAccess(check);
       store(access, &check, tls, rp, AnyReg(rv), temp);
-      freeI32(rp);
-      freeF64(rv);
+      free(rp);
+      free(rv);
       break;
     }
 #ifdef ENABLE_WASM_SIMD
     case ValType::V128: {
       RegV128 rv = popV128();
-      RegI32 rp = popMemory32Access(access, &check);
+      RegType rp = popMemoryAccess<RegType>(access, &check);
       tls = maybeLoadTlsForAccess(check);
       store(access, &check, tls, rp, AnyReg(rv), temp);
-      freeI32(rp);
-      freeV128(rv);
+      free(rp);
+      free(rv);
       break;
     }
 #endif
@@ -624,6 +802,29 @@
   maybeFree(temp);
 }
 
+void BaseCompiler::storeCommon(MemoryAccessDesc* access, AccessCheck check,
+                               ValType type) {
+  if (isMem32()) {
+    doStoreCommon<RegI32>(access, check, type);
+  } else {
+#ifdef ENABLE_WASM_MEMORY64
+    doStoreCommon<RegI64>(access, check, type);
+#else
+    MOZ_CRASH("Memory64 not enabled / supported on this platform");
+#endif
+  }
+}
+
+// Convert something that may contain a heap index into a Register that can be
+// used in an access.
+
+static inline Register ToRegister(RegI32 r) { return Register(r); }
+#ifdef JS_PUNBOX64
+static inline Register ToRegister(RegI64 r) { return r.reg; }
+#else
+static inline Register ToRegister(RegI64 r) { return r.low; }
+#endif
+
 //////////////////////////////////////////////////////////////////////////////
 //
 // Atomic operations.
@@ -638,25 +839,37 @@
 
 #ifdef RABALDR_HAS_HEAPREG
 
+// RegIndexType is RegI32 for Memory32 and RegI64 for Memory64.
+template <typename RegIndexType>
 BaseIndex BaseCompiler::prepareAtomicMemoryAccess(MemoryAccessDesc* access,
                                                   AccessCheck* check,
-                                                  RegPtr tls, RegI32 ptr) {
+                                                  RegPtr tls,
+                                                  RegIndexType ptr) {
+  // 64-bit offset will be supported later.
+  static_assert(sizeof(access->offset()) == sizeof(uint32_t));
+
   MOZ_ASSERT(needTlsForAccess(*check) == tls.isValid());
   prepareMemoryAccess(access, check, tls, ptr);
-  return BaseIndex(HeapReg, ptr, TimesOne, access->offset());
+  return BaseIndex(HeapReg, ToRegister(ptr), TimesOne, access->offset());
 }
 
 #else
 
 // Some consumers depend on the returned Address not incorporating tls, as tls
 // may be the scratch register.
+//
+// RegIndexType is RegI32 for Memory32 and RegI64 for Memory64.
+template <typename RegIndexType>
 Address BaseCompiler::prepareAtomicMemoryAccess(MemoryAccessDesc* access,
                                                 AccessCheck* check, RegPtr tls,
-                                                RegI32 ptr) {
+                                                RegIndexType ptr) {
+  // 64-bit offset will be supported later.
+  static_assert(sizeof(access->offset()) == sizeof(uint32_t));
+
   MOZ_ASSERT(needTlsForAccess(*check) == tls.isValid());
   prepareMemoryAccess(access, check, tls, ptr);
-  masm.addPtr(Address(tls, offsetof(TlsData, memoryBase)), ptr);
-  return Address(ptr, access->offset());
+  masm.addPtr(Address(tls, offsetof(TlsData, memoryBase)), ToRegister(ptr));
+  return Address(ToRegister(ptr), access->offset());
 }
 
 #endif
@@ -709,21 +922,14 @@
 
 }  // namespace atomic_load64
 
-void BaseCompiler::atomicLoad(MemoryAccessDesc* access, ValType type) {
-  Scalar::Type viewType = access->type();
-  if (Scalar::byteSize(viewType) <= sizeof(void*)) {
-    loadCommon(access, AccessCheck(), type);
-    return;
-  }
-
-  MOZ_ASSERT(type == ValType::I64 && Scalar::byteSize(viewType) == 8);
-
 #if !defined(JS_64BIT)
+template <typename RegIndexType>
+void BaseCompiler::atomicLoad64(MemoryAccessDesc* access) {
   RegI64 rd, temp;
   atomic_load64::Allocate(this, &rd, &temp);
 
   AccessCheck check;
-  RegI32 rp = popMemory32Access(access, &check);
+  RegIndexType rp = popMemoryAccess<RegIndexType>(access, &check);
 
 #  ifdef RABALDR_HAS_HEAPREG
   RegPtr tls = maybeLoadTlsForAccess(check);
@@ -738,10 +944,30 @@
   MOZ_ASSERT(tls == scratch);
 #  endif
 
-  freeI32(rp);
+  free(rp);
   atomic_load64::Deallocate(this, temp);
   pushI64(rd);
-#endif  // JS_64BIT
+}
+#endif
+
+void BaseCompiler::atomicLoad(MemoryAccessDesc* access, ValType type) {
+  Scalar::Type viewType = access->type();
+  if (Scalar::byteSize(viewType) <= sizeof(void*)) {
+    loadCommon(access, AccessCheck(), type);
+    return;
+  }
+
+  MOZ_ASSERT(type == ValType::I64 && Scalar::byteSize(viewType) == 8);
+
+#if !defined(JS_64BIT)
+  if (isMem32()) {
+    atomicLoad64<RegI32>(access);
+  } else {
+    atomicLoad64<RegI64>(access);
+  }
+#else
+  MOZ_CRASH("Should not happen");
+#endif
 }
 
 void BaseCompiler::atomicStore(MemoryAccessDesc* access, ValType type) {
@@ -754,10 +980,14 @@
 
   MOZ_ASSERT(type == ValType::I64 && Scalar::byteSize(viewType) == 8);
 
-#ifdef JS_64BIT
-  MOZ_CRASH("Should not happen");
+#if !defined(JS_64BIT)
+  if (isMem32()) {
+    atomicXchg64<RegI32>(access, WantResult(false));
+  } else {
+    atomicXchg64<RegI64>(access, WantResult(false));
+  }
 #else
-  atomicXchg64(access, WantResult(false));
+  MOZ_CRASH("Should not happen");
 #endif
 }
 
@@ -769,10 +999,18 @@
                              AtomicOp op) {
   Scalar::Type viewType = access->type();
   if (Scalar::byteSize(viewType) <= 4) {
-    atomicRMW32(access, type, op);
+    if (isMem32()) {
+      atomicRMW32<RegI32>(access, type, op);
+    } else {
+      atomicRMW32<RegI64>(access, type, op);
+    }
   } else {
     MOZ_ASSERT(type == ValType::I64 && Scalar::byteSize(viewType) == 8);
-    atomicRMW64(access, type, op);
+    if (isMem32()) {
+      atomicRMW64<RegI32>(access, type, op);
+    } else {
+      atomicRMW64<RegI64>(access, type, op);
+    }
   }
 }
 
@@ -781,7 +1019,11 @@
 #if defined(JS_CODEGEN_X64) || defined(JS_CODEGEN_X86)
 
 struct Temps {
+  // On x86 we use the ScratchI32 for the temp, otherwise we'd run out of
+  // registers for 64-bit operations.
+#  if defined(JS_CODEGEN_X64)
   RegI32 t0;
+#  endif
 };
 
 static void PopAndAllocate(BaseCompiler* bc, ValType type,
@@ -808,13 +1050,7 @@
       *rv = bc->popI32();
     }
     *rd = bc->specific_.eax;
-#  if defined(JS_CODEGEN_X86)
-    // Single-byte is a special case handled very locally with ScratchI8, see
-    // AtomicRMW32 below.
-    if (Scalar::byteSize(viewType) > 1) {
-      temps->t0 = bc->needI32();
-    }
-#  else
+#  ifdef JS_CODEGEN_X64
     temps->t0 = bc->needI32();
 #  endif
   }
@@ -823,15 +1059,13 @@
 template <typename T>
 static void Perform(BaseCompiler* bc, const MemoryAccessDesc& access, T srcAddr,
                     AtomicOp op, RegI32 rv, RegI32 rd, const Temps& temps) {
+#  ifdef JS_CODEGEN_X64
   RegI32 temp = temps.t0;
-#  ifdef JS_CODEGEN_X86
-  ScratchI8 scratch(*bc);
-  if (access.type() == Scalar::Uint8) {
-    // The temp, if used, must be a byte register.
-    MOZ_ASSERT(temp.isInvalid());
-    if (op != AtomicFetchAddOp && op != AtomicFetchSubOp) {
-      temp = scratch;
-    }
+#  else
+  RegI32 temp;
+  ScratchI32 scratch(*bc);
+  if (op != AtomicFetchAddOp && op != AtomicFetchSubOp) {
+    temp = scratch;
   }
 #  endif
   bc->masm.wasmAtomicFetchOp(access, op, rv, srcAddr, temp, rd);
@@ -841,7 +1075,9 @@
   if (rv != bc->specific_.eax) {
     bc->freeI32(rv);
   }
+#  ifdef JS_CODEGEN_X64
   bc->maybeFree(temps.t0);
+#  endif
 }
 
 #elif defined(JS_CODEGEN_ARM) || defined(JS_CODEGEN_ARM64)
@@ -917,6 +1153,7 @@
 
 }  // namespace atomic_rmw32
 
+template <typename RegIndexType>
 void BaseCompiler::atomicRMW32(MemoryAccessDesc* access, ValType type,
                                AtomicOp op) {
   Scalar::Type viewType = access->type();
@@ -925,7 +1162,7 @@
   atomic_rmw32::PopAndAllocate(this, type, viewType, op, &rd, &rv, &temps);
 
   AccessCheck check;
-  RegI32 rp = popMemory32Access(access, &check);
+  RegIndexType rp = popMemoryAccess<RegIndexType>(access, &check);
   RegPtr tls = maybeLoadTlsForAccess(check);
 
   auto memaddr = prepareAtomicMemoryAccess(access, &check, tls, rp);
@@ -933,7 +1170,7 @@
 
   maybeFree(tls);
   atomic_rmw32::Deallocate(this, rv, temps);
-  freeI32(rp);
+  free(rp);
 
   if (type == ValType::I64) {
     pushU32AsI64(rd);
@@ -976,22 +1213,26 @@
 
 #elif defined(JS_CODEGEN_X86)
 
-// Here we'll use cmpxchg8b, so we need rd=edx:eax and value=ecx:ebx.  However,
-// ebx is in use also for the address, so we first pop the value to ecx:tmp,
-// whence it will be stored in memory before the operation, and ecx:ebx is then
-// free.  The temp variable goes unused here.
+// Register allocation is tricky, see comments at atomic_xchg64 below.
+//
+// - Initially rv=ecx:edx and eax is reserved, rd=unallocated.
+// - Then rp is popped into esi+edi because those are the only available.
+// - The Setup operation makes rd=edx:eax.
+// - Deallocation then frees only the ecx part of rv.
+//
+// The temp is unused here.
 
 static void PopAndAllocate(BaseCompiler* bc, AtomicOp op, RegI64* rd,
                            RegI64* rv, RegI64*) {
-  bc->needI64(bc->specific_.edx_eax);
-  *rd = bc->specific_.edx_eax;
-
+  bc->needI32(bc->specific_.eax);
   bc->needI32(bc->specific_.ecx);
-  RegI32 rvLow = bc->needI32();
-  *rv = RegI64(Register64(bc->specific_.ecx, rvLow));
+  bc->needI32(bc->specific_.edx);
+  *rv = RegI64(Register64(bc->specific_.ecx, bc->specific_.edx));
   bc->popI64ToSpecific(*rv);
 }
 
+static void Setup(BaseCompiler* bc, RegI64* rd) { *rd = bc->specific_.edx_eax; }
+
 static void Perform(BaseCompiler* bc, const MemoryAccessDesc& access,
                     Address srcAddr, AtomicOp op, RegI64 rv, RegI64, RegI64 rd,
                     const ScratchAtomicNoHeapReg& scratch) {
@@ -1008,8 +1249,8 @@
   bc->fr.popBytes(8);
 }
 
-static void Deallocate(BaseCompiler* bc, AtomicOp op, RegI64 rv, RegI64) {
-  bc->freeI64(rv);
+static void Deallocate(BaseCompiler* bc, AtomicOp, RegI64, RegI64) {
+  bc->freeI32(bc->specific_.ecx);
 }
 
 #elif defined(JS_CODEGEN_ARM)
@@ -1068,13 +1309,14 @@
 
 }  // namespace atomic_rmw64
 
+template <typename RegIndexType>
 void BaseCompiler::atomicRMW64(MemoryAccessDesc* access, ValType type,
                                AtomicOp op) {
   RegI64 rd, rv, temp;
   atomic_rmw64::PopAndAllocate(this, op, &rd, &rv, &temp);
 
   AccessCheck check;
-  RegI32 rp = popMemory32Access(access, &check);
+  RegIndexType rp = popMemoryAccess<RegIndexType>(access, &check);
 
 #if defined(RABALDR_HAS_HEAPREG)
   RegPtr tls = maybeLoadTlsForAccess(check);
@@ -1085,11 +1327,12 @@
   ScratchAtomicNoHeapReg scratch(*this);
   RegPtr tls = maybeLoadTlsForAccess(check, RegIntptrToRegPtr(scratch));
   auto memaddr = prepareAtomicMemoryAccess(access, &check, tls, rp);
+  atomic_rmw64::Setup(this, &rd);
   atomic_rmw64::Perform(this, *access, memaddr, op, rv, temp, rd, scratch);
   MOZ_ASSERT(tls == scratch);
 #endif
 
-  freeI32(rp);
+  free(rp);
   atomic_rmw64::Deallocate(this, op, rv, temp);
 
   pushI64(rd);
@@ -1102,10 +1345,18 @@
 void BaseCompiler::atomicXchg(MemoryAccessDesc* access, ValType type) {
   Scalar::Type viewType = access->type();
   if (Scalar::byteSize(viewType) <= 4) {
-    atomicXchg32(access, type);
+    if (isMem32()) {
+      atomicXchg32<RegI32>(access, type);
+    } else {
+      atomicXchg32<RegI64>(access, type);
+    }
   } else {
     MOZ_ASSERT(type == ValType::I64 && Scalar::byteSize(viewType) == 8);
-    atomicXchg64(access, WantResult(true));
+    if (isMem32()) {
+      atomicXchg64<RegI32>(access, WantResult(true));
+    } else {
+      atomicXchg64<RegI64>(access, WantResult(true));
+    }
   }
 }
 
@@ -1222,6 +1473,7 @@
 
 }  // namespace atomic_xchg32
 
+template <typename RegIndexType>
 void BaseCompiler::atomicXchg32(MemoryAccessDesc* access, ValType type) {
   Scalar::Type viewType = access->type();
 
@@ -1231,14 +1483,14 @@
 
   AccessCheck check;
 
-  RegI32 rp = popMemory32Access(access, &check);
+  RegIndexType rp = popMemoryAccess<RegIndexType>(access, &check);
   RegPtr tls = maybeLoadTlsForAccess(check);
 
   auto memaddr = prepareAtomicMemoryAccess(access, &check, tls, rp);
   atomic_xchg32::Perform(this, *access, memaddr, rv, rd, temps);
 
   maybeFree(tls);
-  freeI32(rp);
+  free(rp);
   atomic_xchg32::Deallocate(this, rv, temps);
 
   if (type == ValType::I64) {
@@ -1263,29 +1515,45 @@
 
 #elif defined(JS_CODEGEN_X86)
 
-// We'll use cmpxchg8b, so rv must be in ecx:ebx, and rd must be edx:eax.  We
-// can't use ebx for rv here because we need ebx for a scratch also, so use a
-// separate temp and move the value to ebx just before the operation.
+// Register allocation is tricky in several ways.
+//
+// - For a 64-bit access on memory64 we need six registers for rd, rv, and rp,
+//   but have only five (as the temp ebx is needed too), so we target all
+//   registers explicitly to make sure there's space.
+//
+// - We'll be using cmpxchg8b, and when we do the operation, rv must be in
+//   ecx:ebx, and rd must be edx:eax.  We can't use ebx for rv initially because
+//   we need ebx for a scratch also, so use a separate temp and move the value
+//   to ebx just before the operation.
+//
+// In sum:
+//
+// - Initially rv=ecx:edx and eax is reserved, rd=unallocated.
+// - Then rp is popped into esi+edi because those are the only available.
+// - The Setup operation makes rv=ecx:ebx and rd=edx:eax and moves edx->ebx.
+// - Deallocation then frees only the ecx part of rv.
+
 static void PopAndAllocate(BaseCompiler* bc, RegI64* rd, RegI64* rv) {
   bc->needI32(bc->specific_.ecx);
-  bc->needI64(bc->specific_.edx_eax);
-  RegI32 tmp = bc->needI32();
-  *rv = RegI64(Register64(bc->specific_.ecx, tmp));
+  bc->needI32(bc->specific_.edx);
+  bc->needI32(bc->specific_.eax);
+  *rv = RegI64(Register64(bc->specific_.ecx, bc->specific_.edx));
   bc->popI64ToSpecific(*rv);
-  *rd = bc->specific_.edx_eax;
 }
 
-static RegI64 Setup(BaseCompiler* bc, RegI64 rv,
-                    const ScratchAtomicNoHeapReg& scratch) {
-  MOZ_ASSERT(rv.high == bc->specific_.ecx);
+static void Setup(BaseCompiler* bc, RegI64* rv, RegI64* rd,
+                  const ScratchAtomicNoHeapReg& scratch) {
+  MOZ_ASSERT(rv->high == bc->specific_.ecx);
   MOZ_ASSERT(Register(scratch) == js::jit::ebx);
-  bc->masm.move32(rv.low, scratch);
-  return bc->specific_.ecx_ebx;
+  bc->masm.move32(rv->low, scratch);
+  *rv = bc->specific_.ecx_ebx;
+  *rd = bc->specific_.edx_eax;
 }
 
 static void Deallocate(BaseCompiler* bc, RegI64 rd, RegI64 rv) {
-  bc->freeI64(rv);
+  MOZ_ASSERT(rd == bc->specific_.edx_eax || rd == RegI64::Invalid());
   bc->maybeFree(rd);
+  bc->freeI32(bc->specific_.ecx);
 }
 
 #elif defined(JS_CODEGEN_ARM64) || defined(JS_CODEGEN_MIPS64)
@@ -1322,29 +1590,31 @@
 
 }  // namespace atomic_xchg64
 
+template <typename RegIndexType>
 void BaseCompiler::atomicXchg64(MemoryAccessDesc* access,
                                 WantResult wantResult) {
   RegI64 rd, rv;
   atomic_xchg64::PopAndAllocate(this, &rd, &rv);
 
   AccessCheck check;
-  RegI32 rp = popMemory32Access(access, &check);
+  RegIndexType rp = popMemoryAccess<RegIndexType>(access, &check);
 
 #ifdef RABALDR_HAS_HEAPREG
   RegPtr tls = maybeLoadTlsForAccess(check);
-  auto memaddr = prepareAtomicMemoryAccess(access, &check, tls, rp);
+  auto memaddr =
+      prepareAtomicMemoryAccess<RegIndexType>(access, &check, tls, rp);
   masm.wasmAtomicExchange64(*access, memaddr, rv, rd);
   maybeFree(tls);
 #else
   ScratchAtomicNoHeapReg scratch(*this);
   RegPtr tls = maybeLoadTlsForAccess(check, RegIntptrToRegPtr(scratch));
-  auto memaddr = prepareAtomicMemoryAccess(access, &check, tls, rp);
-  RegI64 rvNew = atomic_xchg64::Setup(this, rv, scratch);
-  masm.wasmAtomicExchange64(*access, memaddr, rvNew, rd);
+  Address memaddr = prepareAtomicMemoryAccess(access, &check, tls, rp);
+  atomic_xchg64::Setup(this, &rv, &rd, scratch);
+  masm.wasmAtomicExchange64(*access, memaddr, rv, rd);
   MOZ_ASSERT(tls == scratch);
 #endif
 
-  freeI32(rp);
+  free(rp);
   if (wantResult) {
     pushI64(rd);
     rd = RegI64::Invalid();
@@ -1359,10 +1629,18 @@
 void BaseCompiler::atomicCmpXchg(MemoryAccessDesc* access, ValType type) {
   Scalar::Type viewType = access->type();
   if (Scalar::byteSize(viewType) <= 4) {
-    atomicCmpXchg32(access, type);
+    if (isMem32()) {
+      atomicCmpXchg32<RegI32>(access, type);
+    } else {
+      atomicCmpXchg32<RegI64>(access, type);
+    }
   } else {
     MOZ_ASSERT(type == ValType::I64 && Scalar::byteSize(viewType) == 8);
-    atomicCmpXchg64(access, type);
+    if (isMem32()) {
+      atomicCmpXchg64<RegI32>(access, type);
+    } else {
+      atomicCmpXchg64<RegI64>(access, type);
+    }
   }
 }
 
@@ -1493,6 +1771,7 @@
 
 }  // namespace atomic_cmpxchg32
 
+template <typename RegIndexType>
 void BaseCompiler::atomicCmpXchg32(MemoryAccessDesc* access, ValType type) {
   Scalar::Type viewType = access->type();
   RegI32 rexpect, rnew, rd;
@@ -1501,14 +1780,14 @@
                                    &temps);
 
   AccessCheck check;
-  RegI32 rp = popMemory32Access(access, &check);
+  RegIndexType rp = popMemoryAccess<RegIndexType>(access, &check);
   RegPtr tls = maybeLoadTlsForAccess(check);
 
   auto memaddr = prepareAtomicMemoryAccess(access, &check, tls, rp);
   atomic_cmpxchg32::Perform(this, *access, memaddr, rexpect, rnew, rd, temps);
 
   maybeFree(tls);
-  freeI32(rp);
+  free(rp);
   atomic_cmpxchg32::Deallocate(this, rexpect, rnew, temps);
 
   if (type == ValType::I64) {
@@ -1520,8 +1799,19 @@
 
 namespace atomic_cmpxchg64 {
 
+// The templates are needed for x86 code generation, which needs complicated
+// register allocation for memory64.
+
+template <typename RegIndexType>
+static void PopAndAllocate(BaseCompiler* bc, RegI64* rexpect, RegI64* rnew,
+                           RegI64* rd);
+
+template <typename RegIndexType>
+static void Deallocate(BaseCompiler* bc, RegI64 rexpect, RegI64 rnew);
+
 #if defined(JS_CODEGEN_X64)
 
+template <typename RegIndexType>
 static void PopAndAllocate(BaseCompiler* bc, RegI64* rexpect, RegI64* rnew,
                            RegI64* rd) {
   // For cmpxchg, the expected value and the result are both in rax.
@@ -1536,30 +1826,38 @@
   bc->masm.wasmCompareExchange64(access, srcAddr, rexpect, rnew, rd);
 }
 
+template <typename RegIndexType>
 static void Deallocate(BaseCompiler* bc, RegI64 rexpect, RegI64 rnew) {
   bc->freeI64(rnew);
 }
 
 #elif defined(JS_CODEGEN_X86)
 
-static void PopAndAllocate(BaseCompiler* bc, RegI64* rexpect, RegI64* rnew,
-                           RegI64* rd) {
-  // For cmpxchg8b, the expected value and the result are both in edx:eax, and
-  // the replacement value is in ecx:ebx.  But we can't allocate ebx here
-  // because we need it later for a scratch, so instead we allocate a temp to
-  // hold the low word of 'new'.
+template <typename RegIndexType>
+static void Perform(BaseCompiler* bc, const MemoryAccessDesc& access,
+                    Address srcAddr, RegI64 rexpect, RegI64 rnew, RegI64 rd,
+                    ScratchAtomicNoHeapReg& scratch);
+
+// Memory32: For cmpxchg8b, the expected value and the result are both in
+// edx:eax, and the replacement value is in ecx:ebx.  But we can't allocate ebx
+// initially because we need it later for a scratch, so instead we allocate a
+// temp to hold the low word of 'new'.
+
+template <>
+void PopAndAllocate<RegI32>(BaseCompiler* bc, RegI64* rexpect, RegI64* rnew,
+                            RegI64* rd) {
   bc->needI64(bc->specific_.edx_eax);
   bc->needI32(bc->specific_.ecx);
-
   RegI32 tmp = bc->needI32();
   *rnew = bc->popI64ToSpecific(RegI64(Register64(bc->specific_.ecx, tmp)));
   *rexpect = bc->popI64ToSpecific(bc->specific_.edx_eax);
   *rd = *rexpect;
 }
 
-static void Perform(BaseCompiler* bc, const MemoryAccessDesc& access,
-                    Address srcAddr, RegI64 rexpect, RegI64 rnew, RegI64 rd,
-                    ScratchAtomicNoHeapReg& scratch) {
+template <>
+void Perform<RegI32>(BaseCompiler* bc, const MemoryAccessDesc& access,
+                     Address srcAddr, RegI64 rexpect, RegI64 rnew, RegI64 rd,
+                     ScratchAtomicNoHeapReg& scratch) {
   MOZ_ASSERT(Register(scratch) == js::jit::ebx);
   MOZ_ASSERT(rnew.high == bc->specific_.ecx);
   bc->masm.move32(rnew.low, ebx);
@@ -1567,12 +1865,62 @@
                                  bc->specific_.ecx_ebx, rd);
 }
 
-static void Deallocate(BaseCompiler* bc, RegI64 rexpect, RegI64 rnew) {
+template <>
+void Deallocate<RegI32>(BaseCompiler* bc, RegI64 rexpect, RegI64 rnew) {
   bc->freeI64(rnew);
 }
 
+// Memory64: Register allocation is particularly hairy here.  With memory64, we
+// have up to seven live values: i64 expected-value, i64 new-value, i64 pointer,
+// and tls.  The tls can use the scratch but there's no avoiding that we'll run
+// out of registers.
+//
+// Unlike for the rmw ops, we can't use edx as the rnew.low since it's used
+// for the rexpect.high.  And we can't push anything onto the stack while we're
+// popping the memory address because the memory address may be on the stack.
+
+template <>
+void PopAndAllocate<RegI64>(BaseCompiler* bc, RegI64* rexpect, RegI64* rnew,
+                            RegI64* rd) {
+  // We reserve these (and ebx).  The 64-bit pointer will end up in esi+edi.
+  bc->needI32(bc->specific_.eax);
+  bc->needI32(bc->specific_.ecx);
+  bc->needI32(bc->specific_.edx);
+
+  // Pop the 'new' value and stash it in the Tls scratch area.  Do not
+  // initialize *rnew to anything.
+  RegI64 tmp(Register64(bc->specific_.ecx, bc->specific_.edx));
+  bc->popI64ToSpecific(tmp);
+  {
+    ScratchPtr tlsScratch(*bc);
+    bc->stashI64(tlsScratch, tmp);
+  }
+
+  *rexpect = bc->popI64ToSpecific(bc->specific_.edx_eax);
+  *rd = *rexpect;
+}
+
+template <>
+void Perform<RegI64>(BaseCompiler* bc, const MemoryAccessDesc& access,
+                     Address srcAddr, RegI64 rexpect, RegI64 rnew, RegI64 rd,
+                     ScratchAtomicNoHeapReg& scratch) {
+  MOZ_ASSERT(rnew.isInvalid());
+  rnew = bc->specific_.ecx_ebx;
+
+  bc->unstashI64(RegPtr(Register(bc->specific_.ecx)), rnew);
+  bc->masm.wasmCompareExchange64(access, srcAddr, rexpect, rnew, rd);
+}
+
+template <>
+void Deallocate<RegI64>(BaseCompiler* bc, RegI64 rexpect, RegI64 rnew) {
+  // edx:ebx have been pushed as the result, and the pointer was freed
+  // separately in the caller, so just free ecx.
+  bc->free(bc->specific_.ecx);
+}
+
 #elif defined(JS_CODEGEN_ARM)
 
+template <typename RegIndexType>
 static void PopAndAllocate(BaseCompiler* bc, RegI64* rexpect, RegI64* rnew,
                            RegI64* rd) {
   // The replacement value and the result must both be odd/even pairs.
@@ -1586,6 +1934,7 @@
   bc->masm.wasmCompareExchange64(access, srcAddr, rexpect, rnew, rd);
 }
 
+template <typename RegIndexType>
 static void Deallocate(BaseCompiler* bc, RegI64 rexpect, RegI64 rnew) {
   bc->freeI64(rexpect);
   bc->freeI64(rnew);
@@ -1593,6 +1942,7 @@
 
 #elif defined(JS_CODEGEN_ARM64) || defined(JS_CODEGEN_MIPS64)
 
+template <typename RegIndexType>
 static void PopAndAllocate(BaseCompiler* bc, RegI64* rexpect, RegI64* rnew,
                            RegI64* rd) {
   *rnew = bc->popI64();
@@ -1605,6 +1955,7 @@
   bc->masm.wasmCompareExchange64(access, srcAddr, rexpect, rnew, rd);
 }
 
+template <typename RegIndexType>
 static void Deallocate(BaseCompiler* bc, RegI64 rexpect, RegI64 rnew) {
   bc->freeI64(rexpect);
   bc->freeI64(rnew);
@@ -1612,23 +1963,26 @@
 
 #elif defined(JS_CODEGEN_NONE)
 
+template <typename RegIndexType>
 static void PopAndAllocate(BaseCompiler* bc, RegI64* rexpect, RegI64* rnew,
                            RegI64* rd) {}
 static void Perform(BaseCompiler* bc, const MemoryAccessDesc& access,
                     BaseIndex srcAddr, RegI64 rexpect, RegI64 rnew, RegI64 rd) {
 }
+template <typename RegIndexType>
 static void Deallocate(BaseCompiler* bc, RegI64 rexpect, RegI64 rnew) {}
 
 #endif
 
 }  // namespace atomic_cmpxchg64
 
+template <typename RegIndexType>
 void BaseCompiler::atomicCmpXchg64(MemoryAccessDesc* access, ValType type) {
   RegI64 rexpect, rnew, rd;
-  atomic_cmpxchg64::PopAndAllocate(this, &rexpect, &rnew, &rd);
+  atomic_cmpxchg64::PopAndAllocate<RegIndexType>(this, &rexpect, &rnew, &rd);
 
   AccessCheck check;
-  RegI32 rp = popMemory32Access(access, &check);
+  RegIndexType rp = popMemoryAccess<RegIndexType>(access, &check);
 
 #ifdef RABALDR_HAS_HEAPREG
   RegPtr tls = maybeLoadTlsForAccess(check);
@@ -1638,13 +1992,14 @@
 #else
   ScratchAtomicNoHeapReg scratch(*this);
   RegPtr tls = maybeLoadTlsForAccess(check, RegIntptrToRegPtr(scratch));
-  auto memaddr = prepareAtomicMemoryAccess(access, &check, tls, rp);
-  atomic_cmpxchg64::Perform(this, *access, memaddr, rexpect, rnew, rd, scratch);
+  Address memaddr = prepareAtomicMemoryAccess(access, &check, tls, rp);
+  atomic_cmpxchg64::Perform<RegIndexType>(this, *access, memaddr, rexpect, rnew,
+                                          rd, scratch);
   MOZ_ASSERT(tls == scratch);
 #endif
 
-  freeI32(rp);
-  atomic_cmpxchg64::Deallocate(this, rexpect, rnew);
+  free(rp);
+  atomic_cmpxchg64::Deallocate<RegIndexType>(this, rexpect, rnew);
 
   pushI64(rd);
 }
@@ -1660,12 +2015,17 @@
       RegI64 timeout = popI64();
       RegI32 val = popI32();
 
-      computeEffectiveAddress(access);
+      if (isMem32()) {
+        computeEffectiveAddress<RegI32>(access);
+      } else {
+        computeEffectiveAddress<RegI64>(access);
+      }
 
       pushI32(val);
       pushI64(timeout);
 
-      if (!emitInstanceCall(lineOrBytecode, SASigWaitI32)) {
+      if (!emitInstanceCall(lineOrBytecode,
+                            isMem32() ? SASigWaitI32M32 : SASigWaitI32M64)) {
         return false;
       }
       break;
@@ -1674,12 +2034,31 @@
       RegI64 timeout = popI64();
       RegI64 val = popI64();
 
-      computeEffectiveAddress(access);
+      if (isMem32()) {
+        computeEffectiveAddress<RegI32>(access);
+      } else {
+#ifdef JS_CODEGEN_X86
+        {
+          ScratchPtr scratch(*this);
+          stashI64(scratch, val);
+          freeI64(val);
+        }
+#endif
+        computeEffectiveAddress<RegI64>(access);
+#ifdef JS_CODEGEN_X86
+        {
+          ScratchPtr scratch(*this);
+          val = needI64();
+          unstashI64(scratch, val);
+        }
+#endif
+      }
 
       pushI64(val);
       pushI64(timeout);
 
-      if (!emitInstanceCall(lineOrBytecode, SASigWaitI64)) {
+      if (!emitInstanceCall(lineOrBytecode,
+                            isMem32() ? SASigWaitI64M32 : SASigWaitI64M64)) {
         return false;
       }
       break;
@@ -1695,17 +2074,22 @@
                               uint32_t lineOrBytecode) {
   RegI32 count = popI32();
 
-  computeEffectiveAddress(access);
+  if (isMem32()) {
+    computeEffectiveAddress<RegI32>(access);
+  } else {
+    computeEffectiveAddress<RegI64>(access);
+  }
 
   pushI32(count);
-  return emitInstanceCall(lineOrBytecode, SASigWake);
+  return emitInstanceCall(lineOrBytecode,
+                          isMem32() ? SASigWakeM32 : SASigWakeM64);
 }
 
 //////////////////////////////////////////////////////////////////////////////
 //
 // Bulk memory.
 
-void BaseCompiler::emitMemCopyInline() {
+void BaseCompiler::memCopyInlineM32() {
   MOZ_ASSERT(MaxInlineMemoryCopyLength != 0);
 
   int32_t signedLength;
@@ -1910,7 +2294,7 @@
   freeI32(src);
 }
 
-void BaseCompiler::emitMemFillInline() {
+void BaseCompiler::memFillInlineM32() {
   MOZ_ASSERT(MaxInlineMemoryFillLength != 0);
 
   int32_t signedLength;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBCRegMgmt-inl.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBCRegMgmt-inl.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBCRegMgmt-inl.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBCRegMgmt-inl.h	2021-10-20 19:28:31.000000000 +0000
@@ -212,6 +212,13 @@
 
 RegI32 BaseCompiler::fromI64(RegI64 r) { return RegI32(lowPart(r)); }
 
+RegI32 BaseCompiler::maybeFromI64(RegI64 r) {
+  if (!r.isValid()) {
+    return RegI32::Invalid();
+  }
+  return fromI64(r);
+}
+
 #ifdef JS_PUNBOX64
 RegI64 BaseCompiler::fromI32(RegI32 r) { return RegI64(Register64(r)); }
 #endif
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBCStkMgmt-inl.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBCStkMgmt-inl.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBCStkMgmt-inl.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBCStkMgmt-inl.h	2021-10-20 19:28:30.000000000 +0000
@@ -1052,6 +1052,23 @@
   return specific;
 }
 
+bool BaseCompiler::hasConst() const {
+  const Stk& v = stk_.back();
+  switch (v.kind()) {
+    case Stk::ConstI32:
+    case Stk::ConstI64:
+    case Stk::ConstF32:
+    case Stk::ConstF64:
+#ifdef ENABLE_WASM_SIMD
+    case Stk::ConstV128:
+#endif
+    case Stk::ConstRef:
+      return true;
+    default:
+      return false;
+  }
+}
+
 bool BaseCompiler::popConst(int32_t* c) {
   Stk& v = stk_.back();
   if (v.kind() != Stk::ConstI32) {
@@ -1196,9 +1213,10 @@
   return narrowI64(rd);
 }
 
-bool BaseCompiler::peekLocalI32(uint32_t* local) {
+bool BaseCompiler::peekLocal(uint32_t* local) {
   Stk& v = stk_.back();
-  if (v.kind() != Stk::LocalI32) {
+  // See hasLocal() for documentation of this logic.
+  if (v.kind() <= Stk::MemLast || v.kind() > Stk::LocalLast) {
     return false;
   }
   *local = v.slot();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBuiltins.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBuiltins.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBuiltins.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBuiltins.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -114,54 +114,104 @@
     SymbolicAddress::PowD, _F64, _Infallible, 2, {_F64, _F64, _END}};
 const SymbolicAddressSignature SASigATan2D = {
     SymbolicAddress::ATan2D, _F64, _Infallible, 2, {_F64, _F64, _END}};
-const SymbolicAddressSignature SASigMemoryGrow = {
-    SymbolicAddress::MemoryGrow, _I32, _Infallible, 2, {_PTR, _I32, _END}};
-const SymbolicAddressSignature SASigMemorySize = {
-    SymbolicAddress::MemorySize, _I32, _Infallible, 1, {_PTR, _END}};
-const SymbolicAddressSignature SASigWaitI32 = {SymbolicAddress::WaitI32,
-                                               _I32,
-                                               _FailOnNegI32,
-                                               4,
-                                               {_PTR, _I32, _I32, _I64, _END}};
-const SymbolicAddressSignature SASigWaitI64 = {SymbolicAddress::WaitI64,
-                                               _I32,
-                                               _FailOnNegI32,
-                                               4,
-                                               {_PTR, _I32, _I64, _I64, _END}};
-const SymbolicAddressSignature SASigWake = {
-    SymbolicAddress::Wake, _I32, _FailOnNegI32, 3, {_PTR, _I32, _I32, _END}};
-const SymbolicAddressSignature SASigMemCopy32 = {
-    SymbolicAddress::MemCopy32,
+const SymbolicAddressSignature SASigMemoryGrowM32 = {
+    SymbolicAddress::MemoryGrowM32, _I32, _Infallible, 2, {_PTR, _I32, _END}};
+const SymbolicAddressSignature SASigMemoryGrowM64 = {
+    SymbolicAddress::MemoryGrowM64, _I64, _Infallible, 2, {_PTR, _I64, _END}};
+const SymbolicAddressSignature SASigMemorySizeM32 = {
+    SymbolicAddress::MemorySizeM32, _I32, _Infallible, 1, {_PTR, _END}};
+const SymbolicAddressSignature SASigMemorySizeM64 = {
+    SymbolicAddress::MemorySizeM64, _I64, _Infallible, 1, {_PTR, _END}};
+const SymbolicAddressSignature SASigWaitI32M32 = {
+    SymbolicAddress::WaitI32M32,
+    _I32,
+    _FailOnNegI32,
+    4,
+    {_PTR, _I32, _I32, _I64, _END}};
+const SymbolicAddressSignature SASigWaitI32M64 = {
+    SymbolicAddress::WaitI32M64,
+    _I32,
+    _FailOnNegI32,
+    4,
+    {_PTR, _I64, _I32, _I64, _END}};
+const SymbolicAddressSignature SASigWaitI64M32 = {
+    SymbolicAddress::WaitI64M32,
+    _I32,
+    _FailOnNegI32,
+    4,
+    {_PTR, _I32, _I64, _I64, _END}};
+const SymbolicAddressSignature SASigWaitI64M64 = {
+    SymbolicAddress::WaitI64M64,
+    _I32,
+    _FailOnNegI32,
+    4,
+    {_PTR, _I64, _I64, _I64, _END}};
+const SymbolicAddressSignature SASigWakeM32 = {
+    SymbolicAddress::WakeM32, _I32, _FailOnNegI32, 3, {_PTR, _I32, _I32, _END}};
+const SymbolicAddressSignature SASigWakeM64 = {
+    SymbolicAddress::WakeM64, _I32, _FailOnNegI32, 3, {_PTR, _I64, _I32, _END}};
+const SymbolicAddressSignature SASigMemCopyM32 = {
+    SymbolicAddress::MemCopyM32,
     _VOID,
     _FailOnNegI32,
     5,
     {_PTR, _I32, _I32, _I32, _PTR, _END}};
-const SymbolicAddressSignature SASigMemCopyShared32 = {
-    SymbolicAddress::MemCopyShared32,
+const SymbolicAddressSignature SASigMemCopySharedM32 = {
+    SymbolicAddress::MemCopySharedM32,
     _VOID,
     _FailOnNegI32,
     5,
     {_PTR, _I32, _I32, _I32, _PTR, _END}};
+const SymbolicAddressSignature SASigMemCopyM64 = {
+    SymbolicAddress::MemCopyM64,
+    _VOID,
+    _FailOnNegI32,
+    5,
+    {_PTR, _I64, _I64, _I64, _PTR, _END}};
+const SymbolicAddressSignature SASigMemCopySharedM64 = {
+    SymbolicAddress::MemCopySharedM64,
+    _VOID,
+    _FailOnNegI32,
+    5,
+    {_PTR, _I64, _I64, _I64, _PTR, _END}};
 const SymbolicAddressSignature SASigDataDrop = {
     SymbolicAddress::DataDrop, _VOID, _FailOnNegI32, 2, {_PTR, _I32, _END}};
-const SymbolicAddressSignature SASigMemFill32 = {
-    SymbolicAddress::MemFill32,
+const SymbolicAddressSignature SASigMemFillM32 = {
+    SymbolicAddress::MemFillM32,
     _VOID,
     _FailOnNegI32,
     5,
     {_PTR, _I32, _I32, _I32, _PTR, _END}};
-const SymbolicAddressSignature SASigMemFillShared32 = {
-    SymbolicAddress::MemFillShared32,
+const SymbolicAddressSignature SASigMemFillSharedM32 = {
+    SymbolicAddress::MemFillSharedM32,
     _VOID,
     _FailOnNegI32,
     5,
     {_PTR, _I32, _I32, _I32, _PTR, _END}};
-const SymbolicAddressSignature SASigMemInit32 = {
-    SymbolicAddress::MemInit32,
+const SymbolicAddressSignature SASigMemFillM64 = {
+    SymbolicAddress::MemFillM64,
+    _VOID,
+    _FailOnNegI32,
+    5,
+    {_PTR, _I64, _I32, _I64, _PTR, _END}};
+const SymbolicAddressSignature SASigMemFillSharedM64 = {
+    SymbolicAddress::MemFillSharedM64,
+    _VOID,
+    _FailOnNegI32,
+    5,
+    {_PTR, _I64, _I32, _I64, _PTR, _END}};
+const SymbolicAddressSignature SASigMemInitM32 = {
+    SymbolicAddress::MemInitM32,
     _VOID,
     _FailOnNegI32,
     5,
     {_PTR, _I32, _I32, _I32, _I32, _END}};
+const SymbolicAddressSignature SASigMemInitM64 = {
+    SymbolicAddress::MemInitM64,
+    _VOID,
+    _FailOnNegI32,
+    5,
+    {_PTR, _I64, _I32, _I32, _I32, _END}};
 const SymbolicAddressSignature SASigTableCopy = {
     SymbolicAddress::TableCopy,
     _VOID,
@@ -1079,50 +1129,90 @@
       *abiType = Args_Double_DoubleDouble;
       return FuncCast(ecmaAtan2, *abiType);
 
-    case SymbolicAddress::MemoryGrow:
+    case SymbolicAddress::MemoryGrowM32:
       *abiType = Args_Int32_GeneralInt32;
-      MOZ_ASSERT(*abiType == ToABIType(SASigMemoryGrow));
-      return FuncCast(Instance::memoryGrow_i32, *abiType);
-    case SymbolicAddress::MemorySize:
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemoryGrowM32));
+      return FuncCast(Instance::memoryGrow_m32, *abiType);
+    case SymbolicAddress::MemoryGrowM64:
+      *abiType = Args_Int64_GeneralInt64;
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemoryGrowM64));
+      return FuncCast(Instance::memoryGrow_m64, *abiType);
+    case SymbolicAddress::MemorySizeM32:
       *abiType = Args_Int32_General;
-      MOZ_ASSERT(*abiType == ToABIType(SASigMemorySize));
-      return FuncCast(Instance::memorySize_i32, *abiType);
-    case SymbolicAddress::WaitI32:
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemorySizeM32));
+      return FuncCast(Instance::memorySize_m32, *abiType);
+    case SymbolicAddress::MemorySizeM64:
+      *abiType = Args_Int64_General;
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemorySizeM64));
+      return FuncCast(Instance::memorySize_m64, *abiType);
+    case SymbolicAddress::WaitI32M32:
       *abiType = Args_Int32_GeneralInt32Int32Int64;
-      MOZ_ASSERT(*abiType == ToABIType(SASigWaitI32));
-      return FuncCast(Instance::wait_i32, *abiType);
-    case SymbolicAddress::WaitI64:
+      MOZ_ASSERT(*abiType == ToABIType(SASigWaitI32M32));
+      return FuncCast(Instance::wait_i32_m32, *abiType);
+    case SymbolicAddress::WaitI32M64:
+      *abiType = Args_Int32_GeneralInt64Int32Int64;
+      MOZ_ASSERT(*abiType == ToABIType(SASigWaitI32M64));
+      return FuncCast(Instance::wait_i32_m64, *abiType);
+    case SymbolicAddress::WaitI64M32:
       *abiType = Args_Int32_GeneralInt32Int64Int64;
-      MOZ_ASSERT(*abiType == ToABIType(SASigWaitI64));
-      return FuncCast(Instance::wait_i64, *abiType);
-    case SymbolicAddress::Wake:
+      MOZ_ASSERT(*abiType == ToABIType(SASigWaitI64M32));
+      return FuncCast(Instance::wait_i64_m32, *abiType);
+    case SymbolicAddress::WaitI64M64:
+      *abiType = Args_Int32_GeneralInt64Int64Int64;
+      MOZ_ASSERT(*abiType == ToABIType(SASigWaitI64M64));
+      return FuncCast(Instance::wait_i64_m64, *abiType);
+    case SymbolicAddress::WakeM32:
       *abiType = Args_Int32_GeneralInt32Int32;
-      MOZ_ASSERT(*abiType == ToABIType(SASigWake));
-      return FuncCast(Instance::wake, *abiType);
-    case SymbolicAddress::MemCopy32:
+      MOZ_ASSERT(*abiType == ToABIType(SASigWakeM32));
+      return FuncCast(Instance::wake_m32, *abiType);
+    case SymbolicAddress::WakeM64:
+      *abiType = Args_Int32_GeneralInt64Int32;
+      MOZ_ASSERT(*abiType == ToABIType(SASigWakeM64));
+      return FuncCast(Instance::wake_m64, *abiType);
+    case SymbolicAddress::MemCopyM32:
       *abiType = Args_Int32_GeneralInt32Int32Int32General;
-      MOZ_ASSERT(*abiType == ToABIType(SASigMemCopy32));
-      return FuncCast(Instance::memCopy32, *abiType);
-    case SymbolicAddress::MemCopyShared32:
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemCopyM32));
+      return FuncCast(Instance::memCopy_m32, *abiType);
+    case SymbolicAddress::MemCopySharedM32:
       *abiType = Args_Int32_GeneralInt32Int32Int32General;
-      MOZ_ASSERT(*abiType == ToABIType(SASigMemCopyShared32));
-      return FuncCast(Instance::memCopyShared32, *abiType);
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemCopySharedM32));
+      return FuncCast(Instance::memCopyShared_m32, *abiType);
+    case SymbolicAddress::MemCopyM64:
+      *abiType = Args_Int32_GeneralInt64Int64Int64General;
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemCopyM64));
+      return FuncCast(Instance::memCopy_m64, *abiType);
+    case SymbolicAddress::MemCopySharedM64:
+      *abiType = Args_Int32_GeneralInt64Int64Int64General;
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemCopySharedM64));
+      return FuncCast(Instance::memCopyShared_m64, *abiType);
     case SymbolicAddress::DataDrop:
       *abiType = Args_Int32_GeneralInt32;
       MOZ_ASSERT(*abiType == ToABIType(SASigDataDrop));
       return FuncCast(Instance::dataDrop, *abiType);
-    case SymbolicAddress::MemFill32:
+    case SymbolicAddress::MemFillM32:
       *abiType = Args_Int32_GeneralInt32Int32Int32General;
-      MOZ_ASSERT(*abiType == ToABIType(SASigMemFill32));
-      return FuncCast(Instance::memFill32, *abiType);
-    case SymbolicAddress::MemFillShared32:
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemFillM32));
+      return FuncCast(Instance::memFill_m32, *abiType);
+    case SymbolicAddress::MemFillSharedM32:
       *abiType = Args_Int32_GeneralInt32Int32Int32General;
-      MOZ_ASSERT(*abiType == ToABIType(SASigMemFillShared32));
-      return FuncCast(Instance::memFillShared32, *abiType);
-    case SymbolicAddress::MemInit32:
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemFillSharedM32));
+      return FuncCast(Instance::memFillShared_m32, *abiType);
+    case SymbolicAddress::MemFillM64:
+      *abiType = Args_Int32_GeneralInt64Int32Int64General;
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemFillM64));
+      return FuncCast(Instance::memFill_m64, *abiType);
+    case SymbolicAddress::MemFillSharedM64:
+      *abiType = Args_Int32_GeneralInt64Int32Int64General;
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemFillSharedM64));
+      return FuncCast(Instance::memFillShared_m64, *abiType);
+    case SymbolicAddress::MemInitM32:
       *abiType = Args_Int32_GeneralInt32Int32Int32Int32;
-      MOZ_ASSERT(*abiType == ToABIType(SASigMemInit32));
-      return FuncCast(Instance::memInit32, *abiType);
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemInitM32));
+      return FuncCast(Instance::memInit_m32, *abiType);
+    case SymbolicAddress::MemInitM64:
+      *abiType = Args_Int32_GeneralInt64Int32Int32Int32;
+      MOZ_ASSERT(*abiType == ToABIType(SASigMemInitM64));
+      return FuncCast(Instance::memInit_m64, *abiType);
     case SymbolicAddress::TableCopy:
       *abiType = Args_Int32_GeneralInt32Int32Int32Int32Int32;
       MOZ_ASSERT(*abiType == ToABIType(SASigTableCopy));
@@ -1322,19 +1412,29 @@
     case SymbolicAddress::LogD:
     case SymbolicAddress::PowD:
     case SymbolicAddress::ATan2D:
-    case SymbolicAddress::MemoryGrow:
-    case SymbolicAddress::MemorySize:
-    case SymbolicAddress::WaitI32:
-    case SymbolicAddress::WaitI64:
-    case SymbolicAddress::Wake:
+    case SymbolicAddress::MemoryGrowM32:
+    case SymbolicAddress::MemoryGrowM64:
+    case SymbolicAddress::MemorySizeM32:
+    case SymbolicAddress::MemorySizeM64:
+    case SymbolicAddress::WaitI32M32:
+    case SymbolicAddress::WaitI32M64:
+    case SymbolicAddress::WaitI64M32:
+    case SymbolicAddress::WaitI64M64:
+    case SymbolicAddress::WakeM32:
+    case SymbolicAddress::WakeM64:
     case SymbolicAddress::CoerceInPlace_JitEntry:
     case SymbolicAddress::ReportV128JSCall:
-    case SymbolicAddress::MemCopy32:
-    case SymbolicAddress::MemCopyShared32:
+    case SymbolicAddress::MemCopyM32:
+    case SymbolicAddress::MemCopySharedM32:
+    case SymbolicAddress::MemCopyM64:
+    case SymbolicAddress::MemCopySharedM64:
     case SymbolicAddress::DataDrop:
-    case SymbolicAddress::MemFill32:
-    case SymbolicAddress::MemFillShared32:
-    case SymbolicAddress::MemInit32:
+    case SymbolicAddress::MemFillM32:
+    case SymbolicAddress::MemFillSharedM32:
+    case SymbolicAddress::MemFillM64:
+    case SymbolicAddress::MemFillSharedM64:
+    case SymbolicAddress::MemInitM32:
+    case SymbolicAddress::MemInitM64:
     case SymbolicAddress::TableCopy:
     case SymbolicAddress::ElemDrop:
     case SymbolicAddress::TableFill:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBuiltins.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBuiltins.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmBuiltins.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmBuiltins.h	2021-10-20 19:28:31.000000000 +0000
@@ -87,17 +87,27 @@
   Uint64ToDouble,
   Int64ToFloat32,
   Int64ToDouble,
-  MemoryGrow,
-  MemorySize,
-  WaitI32,
-  WaitI64,
-  Wake,
-  MemCopy32,
-  MemCopyShared32,
+  MemoryGrowM32,
+  MemoryGrowM64,
+  MemorySizeM32,
+  MemorySizeM64,
+  WaitI32M32,
+  WaitI32M64,
+  WaitI64M32,
+  WaitI64M64,
+  WakeM32,
+  WakeM64,
+  MemCopyM32,
+  MemCopySharedM32,
+  MemCopyM64,
+  MemCopySharedM64,
   DataDrop,
-  MemFill32,
-  MemFillShared32,
-  MemInit32,
+  MemFillM32,
+  MemFillSharedM32,
+  MemFillM64,
+  MemFillSharedM64,
+  MemInitM32,
+  MemInitM64,
   TableCopy,
   ElemDrop,
   TableFill,
@@ -203,17 +213,27 @@
 extern const SymbolicAddressSignature SASigLogD;
 extern const SymbolicAddressSignature SASigPowD;
 extern const SymbolicAddressSignature SASigATan2D;
-extern const SymbolicAddressSignature SASigMemoryGrow;
-extern const SymbolicAddressSignature SASigMemorySize;
-extern const SymbolicAddressSignature SASigWaitI32;
-extern const SymbolicAddressSignature SASigWaitI64;
-extern const SymbolicAddressSignature SASigWake;
-extern const SymbolicAddressSignature SASigMemCopy32;
-extern const SymbolicAddressSignature SASigMemCopyShared32;
+extern const SymbolicAddressSignature SASigMemoryGrowM32;
+extern const SymbolicAddressSignature SASigMemoryGrowM64;
+extern const SymbolicAddressSignature SASigMemorySizeM32;
+extern const SymbolicAddressSignature SASigMemorySizeM64;
+extern const SymbolicAddressSignature SASigWaitI32M32;
+extern const SymbolicAddressSignature SASigWaitI32M64;
+extern const SymbolicAddressSignature SASigWaitI64M32;
+extern const SymbolicAddressSignature SASigWaitI64M64;
+extern const SymbolicAddressSignature SASigWakeM32;
+extern const SymbolicAddressSignature SASigWakeM64;
+extern const SymbolicAddressSignature SASigMemCopyM32;
+extern const SymbolicAddressSignature SASigMemCopySharedM32;
+extern const SymbolicAddressSignature SASigMemCopyM64;
+extern const SymbolicAddressSignature SASigMemCopySharedM64;
 extern const SymbolicAddressSignature SASigDataDrop;
-extern const SymbolicAddressSignature SASigMemFill32;
-extern const SymbolicAddressSignature SASigMemFillShared32;
-extern const SymbolicAddressSignature SASigMemInit32;
+extern const SymbolicAddressSignature SASigMemFillM32;
+extern const SymbolicAddressSignature SASigMemFillSharedM32;
+extern const SymbolicAddressSignature SASigMemFillM64;
+extern const SymbolicAddressSignature SASigMemFillSharedM64;
+extern const SymbolicAddressSignature SASigMemInitM32;
+extern const SymbolicAddressSignature SASigMemInitM64;
 extern const SymbolicAddressSignature SASigTableCopy;
 extern const SymbolicAddressSignature SASigElemDrop;
 extern const SymbolicAddressSignature SASigTableFill;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmCode.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmCode.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmCode.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmCode.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -1208,7 +1208,8 @@
   return true;
 }
 
-bool Code::setTier2(UniqueCodeTier tier2, const LinkData& linkData) const {
+bool Code::setAndBorrowTier2(UniqueCodeTier tier2, const LinkData& linkData,
+                             const CodeTier** borrowedTier) const {
   MOZ_RELEASE_ASSERT(!hasTier2());
   MOZ_RELEASE_ASSERT(tier2->tier() == Tier::Optimized &&
                      tier1_->tier() == Tier::Baseline);
@@ -1218,15 +1219,20 @@
   }
 
   tier2_ = std::move(tier2);
+  *borrowedTier = &*tier2_;
 
   return true;
 }
 
 void Code::commitTier2() const {
   MOZ_RELEASE_ASSERT(!hasTier2());
-  MOZ_RELEASE_ASSERT(tier2_.get());
   hasTier2_ = true;
   MOZ_ASSERT(hasTier2());
+
+  // To maintain the invariant that tier2_ is never read without the tier having
+  // been committed, this checks tier2_ here instead of before setting hasTier2_
+  // (as would be natural).  See comment in WasmCode.h.
+  MOZ_RELEASE_ASSERT(tier2_.get());
 }
 
 uint32_t Code::getFuncIndex(JSFunction* fun) const {
@@ -1273,11 +1279,13 @@
         MOZ_ASSERT(tier1_->initialized());
         return *tier1_;
       }
-      if (tier2_) {
-        MOZ_ASSERT(tier2_->initialized());
-        return *tier2_;
-      }
-      MOZ_CRASH("No code segment at this tier");
+      // It is incorrect to ask for the optimized tier without there being such
+      // a tier and the tier having been committed.  The guard here could
+      // instead be `if (hasTier2()) ... ` but codeTier(t) should not be called
+      // in contexts where that test is necessary.
+      MOZ_RELEASE_ASSERT(hasTier2());
+      MOZ_ASSERT(tier2_->initialized());
+      return *tier2_;
   }
   MOZ_CRASH();
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmCode.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmCode.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmCode.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmCode.h	2021-10-20 19:28:30.000000000 +0000
@@ -741,8 +741,27 @@
 
 class Code : public ShareableBase<Code> {
   UniqueCodeTier tier1_;
-  mutable UniqueConstCodeTier tier2_;  // Access only when hasTier2() is true
+
+  // [SMDOC] Tier-2 data
+  //
+  // hasTier2_ and tier2_ implement a three-state protocol for broadcasting
+  // tier-2 data; this also amounts to a single-writer/multiple-reader setup.
+  //
+  // Initially hasTier2_ is false and tier2_ is null.
+  //
+  // While hasTier2_ is false, *no* thread may read tier2_, but one thread may
+  // make tier2_ non-null (this will be the tier-2 compiler thread).  That same
+  // thread must then later set hasTier2_ to true to broadcast the tier2_ value
+  // and its availability.  Note that the writing thread may not itself read
+  // tier2_ before setting hasTier2_, in order to simplify reasoning about
+  // global invariants.
+  //
+  // Once hasTier2_ is true, *no* thread may write tier2_ and *no* thread may
+  // read tier2_ without having observed hasTier2_ as true first.  Once
+  // hasTier2_ is true, it stays true.
+  mutable UniqueConstCodeTier tier2_;
   mutable Atomic<bool> hasTier2_;
+
   SharedMetadata metadata_;
   ExclusiveData<CacheableCharsVector> profilingLabels_;
   JumpTables jumpTables_;
@@ -770,7 +789,12 @@
   }
   uint32_t getFuncIndex(JSFunction* fun) const;
 
-  bool setTier2(UniqueCodeTier tier2, const LinkData& linkData) const;
+  // Install the tier2 code without committing it.  To maintain the invariant
+  // that tier2_ is never accessed without the tier having been committed, this
+  // returns a pointer to the installed tier that the caller can use for
+  // subsequent operations.
+  bool setAndBorrowTier2(UniqueCodeTier tier2, const LinkData& linkData,
+                         const CodeTier** borrowedTier) const;
   void commitTier2() const;
 
   bool hasTier2() const { return hasTier2_; }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmCompileArgs.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmCompileArgs.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmCompileArgs.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmCompileArgs.h	2021-10-20 19:28:31.000000000 +0000
@@ -90,7 +90,6 @@
         JS_FOR_WASM_FEATURES(WASM_FEATURE, WASM_FEATURE)
 #undef WASM_FEATURE
             sharedMemory(Shareable::False),
-        hugeMemory(false),
         simdWormhole(false),
         intrinsics(false) {
   }
@@ -105,7 +104,6 @@
 #undef WASM_FEATURE
 
   Shareable sharedMemory;
-  bool hugeMemory;
   bool simdWormhole;
   bool intrinsics;
 };
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmCompile.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmCompile.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmCompile.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmCompile.cpp	2021-10-20 19:28:31.000000000 +0000
@@ -87,7 +87,6 @@
 
   features.sharedMemory =
       wasm::ThreadsAvailable(cx) ? Shareable::True : Shareable::False;
-  features.hugeMemory = wasm::IsHugeMemoryEnabled();
 
   // See comments in WasmConstants.h regarding the meaning of the wormhole
   // options.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmCraneliftCompile.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmCraneliftCompile.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmCraneliftCompile.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmCraneliftCompile.cpp	2021-10-20 19:28:29.000000000 +0000
@@ -47,21 +47,21 @@
     case BD_SymbolicAddress::RefFunc:
       return SymbolicAddress::RefFunc;
     case BD_SymbolicAddress::MemoryGrow:
-      return SymbolicAddress::MemoryGrow;
+      return SymbolicAddress::MemoryGrowM32;
     case BD_SymbolicAddress::MemorySize:
-      return SymbolicAddress::MemorySize;
+      return SymbolicAddress::MemorySizeM32;
     case BD_SymbolicAddress::MemoryCopy:
-      return SymbolicAddress::MemCopy32;
+      return SymbolicAddress::MemCopyM32;
     case BD_SymbolicAddress::MemoryCopyShared:
-      return SymbolicAddress::MemCopyShared32;
+      return SymbolicAddress::MemCopySharedM32;
     case BD_SymbolicAddress::DataDrop:
       return SymbolicAddress::DataDrop;
     case BD_SymbolicAddress::MemoryFill:
-      return SymbolicAddress::MemFill32;
+      return SymbolicAddress::MemFillM32;
     case BD_SymbolicAddress::MemoryFillShared:
-      return SymbolicAddress::MemFillShared32;
+      return SymbolicAddress::MemFillSharedM32;
     case BD_SymbolicAddress::MemoryInit:
-      return SymbolicAddress::MemInit32;
+      return SymbolicAddress::MemInitM32;
     case BD_SymbolicAddress::TableCopy:
       return SymbolicAddress::TableCopy;
     case BD_SymbolicAddress::ElemDrop:
@@ -99,11 +99,11 @@
     case BD_SymbolicAddress::PostBarrier:
       return SymbolicAddress::PostBarrierFiltering;
     case BD_SymbolicAddress::WaitI32:
-      return SymbolicAddress::WaitI32;
+      return SymbolicAddress::WaitI32M32;
     case BD_SymbolicAddress::WaitI64:
-      return SymbolicAddress::WaitI64;
+      return SymbolicAddress::WaitI64M32;
     case BD_SymbolicAddress::Wake:
-      return SymbolicAddress::Wake;
+      return SymbolicAddress::WakeM32;
     case BD_SymbolicAddress::Limit:
       break;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmFrameIter.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmFrameIter.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmFrameIter.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmFrameIter.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -1462,30 +1462,48 @@
       return "call to asm.js native f64 Math.pow";
     case SymbolicAddress::ATan2D:
       return "call to asm.js native f64 Math.atan2";
-    case SymbolicAddress::MemoryGrow:
-      return "call to native memory.grow (in wasm)";
-    case SymbolicAddress::MemorySize:
-      return "call to native memory.size (in wasm)";
-    case SymbolicAddress::WaitI32:
-      return "call to native i32.wait (in wasm)";
-    case SymbolicAddress::WaitI64:
-      return "call to native i64.wait (in wasm)";
-    case SymbolicAddress::Wake:
-      return "call to native wake (in wasm)";
+    case SymbolicAddress::MemoryGrowM32:
+      return "call to native memory.grow m32 (in wasm)";
+    case SymbolicAddress::MemoryGrowM64:
+      return "call to native memory.grow m64 (in wasm)";
+    case SymbolicAddress::MemorySizeM32:
+      return "call to native memory.size m32 (in wasm)";
+    case SymbolicAddress::MemorySizeM64:
+      return "call to native memory.size m64 (in wasm)";
+    case SymbolicAddress::WaitI32M32:
+      return "call to native i32.wait m32 (in wasm)";
+    case SymbolicAddress::WaitI32M64:
+      return "call to native i32.wait m64 (in wasm)";
+    case SymbolicAddress::WaitI64M32:
+      return "call to native i64.wait m32 (in wasm)";
+    case SymbolicAddress::WaitI64M64:
+      return "call to native i64.wait m64 (in wasm)";
+    case SymbolicAddress::WakeM32:
+      return "call to native wake m32 (in wasm)";
+    case SymbolicAddress::WakeM64:
+      return "call to native wake m64 (in wasm)";
     case SymbolicAddress::CoerceInPlace_JitEntry:
       return "out-of-line coercion for jit entry arguments (in wasm)";
     case SymbolicAddress::ReportV128JSCall:
       return "jit call to v128 wasm function";
-    case SymbolicAddress::MemCopy32:
-    case SymbolicAddress::MemCopyShared32:
-      return "call to native memory.copy function";
+    case SymbolicAddress::MemCopyM32:
+    case SymbolicAddress::MemCopySharedM32:
+      return "call to native memory.copy m32 function";
+    case SymbolicAddress::MemCopyM64:
+    case SymbolicAddress::MemCopySharedM64:
+      return "call to native memory.copy m64 function";
     case SymbolicAddress::DataDrop:
       return "call to native data.drop function";
-    case SymbolicAddress::MemFill32:
-    case SymbolicAddress::MemFillShared32:
-      return "call to native memory.fill function";
-    case SymbolicAddress::MemInit32:
-      return "call to native memory.init function";
+    case SymbolicAddress::MemFillM32:
+    case SymbolicAddress::MemFillSharedM32:
+      return "call to native memory.fill m32 function";
+    case SymbolicAddress::MemFillM64:
+    case SymbolicAddress::MemFillSharedM64:
+      return "call to native memory.fill m64 function";
+    case SymbolicAddress::MemInitM32:
+      return "call to native memory.init m32 function";
+    case SymbolicAddress::MemInitM64:
+      return "call to native memory.init m64 function";
     case SymbolicAddress::TableCopy:
       return "call to native table.copy function";
     case SymbolicAddress::TableFill:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmInstance.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmInstance.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmInstance.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmInstance.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -326,8 +326,8 @@
 //
 // Atomic operations and shared memory.
 
-template <typename T>
-static int32_t PerformWait(Instance* instance, uint32_t byteOffset, T value,
+template <typename ValT, typename PtrT>
+static int32_t PerformWait(Instance* instance, PtrT byteOffset, ValT value,
                            int64_t timeout_ns) {
   JSContext* cx = TlsContext.get();
 
@@ -337,13 +337,13 @@
     return -1;
   }
 
-  if (byteOffset & (sizeof(T) - 1)) {
+  if (byteOffset & (sizeof(ValT) - 1)) {
     JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
                               JSMSG_WASM_UNALIGNED_ACCESS);
     return -1;
   }
 
-  if (byteOffset + sizeof(T) > instance->memory()->volatileMemoryLength()) {
+  if (byteOffset + sizeof(ValT) > instance->memory()->volatileMemoryLength()) {
     JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
                               JSMSG_WASM_OUT_OF_BOUNDS);
     return -1;
@@ -355,8 +355,9 @@
         mozilla::TimeDuration::FromMicroseconds(timeout_ns / 1000));
   }
 
-  switch (atomics_wait_impl(cx, instance->sharedMemoryBuffer(), byteOffset,
-                            value, timeout)) {
+  MOZ_ASSERT(byteOffset <= SIZE_MAX, "Bounds check is broken");
+  switch (atomics_wait_impl(cx, instance->sharedMemoryBuffer(),
+                            size_t(byteOffset), value, timeout)) {
     case FutexThread::WaitResult::OK:
       return 0;
     case FutexThread::WaitResult::NotEqual:
@@ -370,22 +371,36 @@
   }
 }
 
-/* static */ int32_t Instance::wait_i32(Instance* instance, uint32_t byteOffset,
-                                        int32_t value, int64_t timeout_ns) {
-  MOZ_ASSERT(SASigWaitI32.failureMode == FailureMode::FailOnNegI32);
-  return PerformWait<int32_t>(instance, byteOffset, value, timeout_ns);
+/* static */ int32_t Instance::wait_i32_m32(Instance* instance,
+                                            uint32_t byteOffset, int32_t value,
+                                            int64_t timeout_ns) {
+  MOZ_ASSERT(SASigWaitI32M32.failureMode == FailureMode::FailOnNegI32);
+  return PerformWait(instance, byteOffset, value, timeout_ns);
 }
 
-/* static */ int32_t Instance::wait_i64(Instance* instance, uint32_t byteOffset,
-                                        int64_t value, int64_t timeout_ns) {
-  MOZ_ASSERT(SASigWaitI64.failureMode == FailureMode::FailOnNegI32);
-  return PerformWait<int64_t>(instance, byteOffset, value, timeout_ns);
+/* static */ int32_t Instance::wait_i32_m64(Instance* instance,
+                                            uint64_t byteOffset, int32_t value,
+                                            int64_t timeout_ns) {
+  MOZ_ASSERT(SASigWaitI32M64.failureMode == FailureMode::FailOnNegI32);
+  return PerformWait(instance, byteOffset, value, timeout_ns);
 }
 
-/* static */ int32_t Instance::wake(Instance* instance, uint32_t byteOffset,
-                                    int32_t count) {
-  MOZ_ASSERT(SASigWake.failureMode == FailureMode::FailOnNegI32);
+/* static */ int32_t Instance::wait_i64_m32(Instance* instance,
+                                            uint32_t byteOffset, int64_t value,
+                                            int64_t timeout_ns) {
+  MOZ_ASSERT(SASigWaitI64M32.failureMode == FailureMode::FailOnNegI32);
+  return PerformWait(instance, byteOffset, value, timeout_ns);
+}
+
+/* static */ int32_t Instance::wait_i64_m64(Instance* instance,
+                                            uint64_t byteOffset, int64_t value,
+                                            int64_t timeout_ns) {
+  MOZ_ASSERT(SASigWaitI64M64.failureMode == FailureMode::FailOnNegI32);
+  return PerformWait(instance, byteOffset, value, timeout_ns);
+}
 
+template <typename PtrT>
+static int32_t PerformWake(Instance* instance, PtrT byteOffset, int32_t count) {
   JSContext* cx = TlsContext.get();
 
   // The alignment guard is not in the wasm spec as of 2017-11-02, but is
@@ -408,8 +423,9 @@
     return 0;
   }
 
+  MOZ_ASSERT(byteOffset <= SIZE_MAX, "Bounds check is broken");
   int64_t woken = atomics_notify_impl(instance->sharedMemoryBuffer(),
-                                      byteOffset, int64_t(count));
+                                      size_t(byteOffset), int64_t(count));
 
   if (woken > INT32_MAX) {
     JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
@@ -420,19 +436,50 @@
   return int32_t(woken);
 }
 
+/* static */ int32_t Instance::wake_m32(Instance* instance, uint32_t byteOffset,
+                                        int32_t count) {
+  MOZ_ASSERT(SASigWakeM32.failureMode == FailureMode::FailOnNegI32);
+  return PerformWake(instance, byteOffset, count);
+}
+
+/* static */ int32_t Instance::wake_m64(Instance* instance, uint64_t byteOffset,
+                                        int32_t count) {
+  MOZ_ASSERT(SASigWakeM32.failureMode == FailureMode::FailOnNegI32);
+  return PerformWake(instance, byteOffset, count);
+}
+
 //////////////////////////////////////////////////////////////////////////////
 //
 // Bulk memory operations.
 
-/* static */ uint32_t Instance::memoryGrow_i32(Instance* instance,
+/* static */ uint32_t Instance::memoryGrow_m32(Instance* instance,
                                                uint32_t delta) {
-  MOZ_ASSERT(SASigMemoryGrow.failureMode == FailureMode::Infallible);
+  MOZ_ASSERT(SASigMemoryGrowM32.failureMode == FailureMode::Infallible);
+  MOZ_ASSERT(!instance->isAsmJS());
+
+  JSContext* cx = TlsContext.get();
+  RootedWasmMemoryObject memory(cx, instance->memory_);
+
+  // It is safe to cast to uint32_t, as all limits have been checked inside
+  // grow() and will not have been exceeded for a 32-bit memory.
+  uint32_t ret = uint32_t(WasmMemoryObject::grow(memory, uint64_t(delta), cx));
+
+  // If there has been a moving grow, this Instance should have been notified.
+  MOZ_RELEASE_ASSERT(instance->tlsData()->memoryBase ==
+                     instance->memory_->buffer().dataPointerEither());
+
+  return ret;
+}
+
+/* static */ uint64_t Instance::memoryGrow_m64(Instance* instance,
+                                               uint64_t delta) {
+  MOZ_ASSERT(SASigMemoryGrowM64.failureMode == FailureMode::Infallible);
   MOZ_ASSERT(!instance->isAsmJS());
 
   JSContext* cx = TlsContext.get();
   RootedWasmMemoryObject memory(cx, instance->memory_);
 
-  uint32_t ret = WasmMemoryObject::grow(memory, delta, cx);
+  uint64_t ret = WasmMemoryObject::grow(memory, delta, cx);
 
   // If there has been a moving grow, this Instance should have been notified.
   MOZ_RELEASE_ASSERT(instance->tlsData()->memoryBase ==
@@ -441,8 +488,8 @@
   return ret;
 }
 
-/* static */ uint32_t Instance::memorySize_i32(Instance* instance) {
-  MOZ_ASSERT(SASigMemorySize.failureMode == FailureMode::Infallible);
+/* static */ uint32_t Instance::memorySize_m32(Instance* instance) {
+  MOZ_ASSERT(SASigMemorySizeM32.failureMode == FailureMode::Infallible);
 
   // This invariant must hold when running Wasm code. Assert it here so we can
   // write tests for cross-realm calls.
@@ -456,44 +503,66 @@
   return uint32_t(pages.value());
 }
 
-template <typename T, typename F>
-inline int32_t WasmMemoryCopy32(T memBase, size_t memLen,
-                                uint32_t dstByteOffset, uint32_t srcByteOffset,
-                                uint32_t len, F memMove) {
-  // Bounds check and deal with arithmetic overflow.
+/* static */ uint64_t Instance::memorySize_m64(Instance* instance) {
+  MOZ_ASSERT(SASigMemorySizeM64.failureMode == FailureMode::Infallible);
+
+  // This invariant must hold when running Wasm code. Assert it here so we can
+  // write tests for cross-realm calls.
+  MOZ_ASSERT(TlsContext.get()->realm() == instance->realm());
+
+  Pages pages = instance->memory()->volatilePages();
+#ifdef JS_64BIT
+  MOZ_ASSERT(pages <= Pages(MaxMemory64LimitField));
+#endif
+  return pages.value();
+}
+
+static inline bool BoundsCheckCopy(uint32_t dstByteOffset,
+                                   uint32_t srcByteOffset, uint32_t len,
+                                   size_t memLen) {
   uint64_t dstOffsetLimit = uint64_t(dstByteOffset) + uint64_t(len);
   uint64_t srcOffsetLimit = uint64_t(srcByteOffset) + uint64_t(len);
 
-  if (dstOffsetLimit > memLen || srcOffsetLimit > memLen) {
+  return dstOffsetLimit > memLen || srcOffsetLimit > memLen;
+}
+
+static inline bool BoundsCheckCopy(uint64_t dstByteOffset,
+                                   uint64_t srcByteOffset, uint64_t len,
+                                   size_t memLen) {
+  uint64_t dstOffsetLimit = dstByteOffset + len;
+  uint64_t srcOffsetLimit = srcByteOffset + len;
+
+  return dstOffsetLimit < dstByteOffset || dstOffsetLimit > memLen ||
+         srcOffsetLimit < srcByteOffset || srcOffsetLimit > memLen;
+}
+
+template <typename T, typename F, typename I>
+inline int32_t WasmMemoryCopy(T memBase, size_t memLen, I dstByteOffset,
+                              I srcByteOffset, I len, F memMove) {
+  if (BoundsCheckCopy(dstByteOffset, srcByteOffset, len, memLen)) {
     JSContext* cx = TlsContext.get();
     JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
                               JSMSG_WASM_OUT_OF_BOUNDS);
     return -1;
   }
 
-  memMove(memBase + dstByteOffset, memBase + srcByteOffset, size_t(len));
+  memMove(memBase + uintptr_t(dstByteOffset),
+          memBase + uintptr_t(srcByteOffset), size_t(len));
   return 0;
 }
 
-/* static */ int32_t Instance::memCopy32(Instance* instance,
-                                         uint32_t dstByteOffset,
-                                         uint32_t srcByteOffset, uint32_t len,
-                                         uint8_t* memBase) {
-  MOZ_ASSERT(SASigMemCopy32.failureMode == FailureMode::FailOnNegI32);
-
+template <typename I>
+inline int32_t MemoryCopy(I dstByteOffset, I srcByteOffset, I len,
+                          uint8_t* memBase) {
   const WasmArrayRawBuffer* rawBuf = WasmArrayRawBuffer::fromDataPtr(memBase);
   size_t memLen = rawBuf->byteLength();
-
-  return WasmMemoryCopy32(memBase, memLen, dstByteOffset, srcByteOffset, len,
-                          memmove);
+  return WasmMemoryCopy(memBase, memLen, dstByteOffset, srcByteOffset, len,
+                        memmove);
 }
 
-/* static */ int32_t Instance::memCopyShared32(Instance* instance,
-                                               uint32_t dstByteOffset,
-                                               uint32_t srcByteOffset,
-                                               uint32_t len, uint8_t* memBase) {
-  MOZ_ASSERT(SASigMemCopyShared32.failureMode == FailureMode::FailOnNegI32);
-
+template <typename I>
+inline int32_t MemoryCopyShared(I dstByteOffset, I srcByteOffset, I len,
+                                uint8_t* memBase) {
   using RacyMemMove =
       void (*)(SharedMem<uint8_t*>, SharedMem<uint8_t*>, size_t);
 
@@ -501,18 +570,61 @@
       SharedArrayRawBuffer::fromDataPtr(memBase);
   size_t memLen = rawBuf->volatileByteLength();
 
-  return WasmMemoryCopy32<SharedMem<uint8_t*>, RacyMemMove>(
+  return WasmMemoryCopy<SharedMem<uint8_t*>, RacyMemMove>(
       SharedMem<uint8_t*>::shared(memBase), memLen, dstByteOffset,
       srcByteOffset, len, AtomicOperations::memmoveSafeWhenRacy);
 }
 
-template <typename T, typename F>
-inline int32_t WasmMemoryFill32(T memBase, size_t memLen, uint32_t byteOffset,
-                                uint32_t value, uint32_t len, F memSet) {
-  // Bounds check and deal with arithmetic overflow.
+/* static */ int32_t Instance::memCopy_m32(Instance* instance,
+                                           uint32_t dstByteOffset,
+                                           uint32_t srcByteOffset, uint32_t len,
+                                           uint8_t* memBase) {
+  MOZ_ASSERT(SASigMemCopyM32.failureMode == FailureMode::FailOnNegI32);
+  return MemoryCopy(dstByteOffset, srcByteOffset, len, memBase);
+}
+
+/* static */ int32_t Instance::memCopyShared_m32(Instance* instance,
+                                                 uint32_t dstByteOffset,
+                                                 uint32_t srcByteOffset,
+                                                 uint32_t len,
+                                                 uint8_t* memBase) {
+  MOZ_ASSERT(SASigMemCopySharedM32.failureMode == FailureMode::FailOnNegI32);
+  return MemoryCopyShared(dstByteOffset, srcByteOffset, len, memBase);
+}
+
+/* static */ int32_t Instance::memCopy_m64(Instance* instance,
+                                           uint64_t dstByteOffset,
+                                           uint64_t srcByteOffset, uint64_t len,
+                                           uint8_t* memBase) {
+  MOZ_ASSERT(SASigMemCopyM64.failureMode == FailureMode::FailOnNegI32);
+  return MemoryCopy(dstByteOffset, srcByteOffset, len, memBase);
+}
+
+/* static */ int32_t Instance::memCopyShared_m64(Instance* instance,
+                                                 uint64_t dstByteOffset,
+                                                 uint64_t srcByteOffset,
+                                                 uint64_t len,
+                                                 uint8_t* memBase) {
+  MOZ_ASSERT(SASigMemCopySharedM64.failureMode == FailureMode::FailOnNegI32);
+  return MemoryCopyShared(dstByteOffset, srcByteOffset, len, memBase);
+}
+
+static inline bool BoundsCheckFill(uint32_t byteOffset, uint32_t len,
+                                   size_t memLen) {
   uint64_t offsetLimit = uint64_t(byteOffset) + uint64_t(len);
+  return offsetLimit > memLen;
+}
+
+static inline bool BoundsCheckFill(uint64_t byteOffset, uint64_t len,
+                                   size_t memLen) {
+  uint64_t offsetLimit = byteOffset + len;
+  return offsetLimit < byteOffset || offsetLimit > memLen;
+}
 
-  if (offsetLimit > memLen) {
+template <typename T, typename F, typename I>
+inline int32_t WasmMemoryFill(T memBase, size_t memLen, I byteOffset,
+                              uint32_t value, I len, F memSet) {
+  if (BoundsCheckFill(byteOffset, len, memLen)) {
     JSContext* cx = TlsContext.get();
     JS_ReportErrorNumberASCII(cx, GetErrorMessage, nullptr,
                               JSMSG_WASM_OUT_OF_BOUNDS);
@@ -521,45 +633,80 @@
 
   // The required write direction is upward, but that is not currently
   // observable as there are no fences nor any read/write protect operation.
-  memSet(memBase + byteOffset, int(value), size_t(len));
+  memSet(memBase + uintptr_t(byteOffset), int(value), size_t(len));
   return 0;
 }
 
-/* static */ int32_t Instance::memFill32(Instance* instance,
-                                         uint32_t byteOffset, uint32_t value,
-                                         uint32_t len, uint8_t* memBase) {
-  MOZ_ASSERT(SASigMemFill32.failureMode == FailureMode::FailOnNegI32);
-
+template <typename I>
+inline int32_t MemoryFill(I byteOffset, uint32_t value, I len,
+                          uint8_t* memBase) {
   const WasmArrayRawBuffer* rawBuf = WasmArrayRawBuffer::fromDataPtr(memBase);
   size_t memLen = rawBuf->byteLength();
-
-  return WasmMemoryFill32(memBase, memLen, byteOffset, value, len, memset);
+  return WasmMemoryFill(memBase, memLen, byteOffset, value, len, memset);
 }
 
-/* static */ int32_t Instance::memFillShared32(Instance* instance,
-                                               uint32_t byteOffset,
-                                               uint32_t value, uint32_t len,
-                                               uint8_t* memBase) {
-  MOZ_ASSERT(SASigMemFillShared32.failureMode == FailureMode::FailOnNegI32);
-
+template <typename I>
+inline int32_t MemoryFillShared(I byteOffset, uint32_t value, I len,
+                                uint8_t* memBase) {
   const SharedArrayRawBuffer* rawBuf =
       SharedArrayRawBuffer::fromDataPtr(memBase);
   size_t memLen = rawBuf->volatileByteLength();
+  return WasmMemoryFill(SharedMem<uint8_t*>::shared(memBase), memLen,
+                        byteOffset, value, len,
+                        AtomicOperations::memsetSafeWhenRacy);
+}
 
-  return WasmMemoryFill32(SharedMem<uint8_t*>::shared(memBase), memLen,
-                          byteOffset, value, len,
-                          AtomicOperations::memsetSafeWhenRacy);
+/* static */ int32_t Instance::memFill_m32(Instance* instance,
+                                           uint32_t byteOffset, uint32_t value,
+                                           uint32_t len, uint8_t* memBase) {
+  MOZ_ASSERT(SASigMemFillM32.failureMode == FailureMode::FailOnNegI32);
+  return MemoryFill(byteOffset, value, len, memBase);
 }
 
-/* static */ int32_t Instance::memInit32(Instance* instance, uint32_t dstOffset,
-                                         uint32_t srcOffset, uint32_t len,
-                                         uint32_t segIndex) {
-  MOZ_ASSERT(SASigMemInit32.failureMode == FailureMode::FailOnNegI32);
+/* static */ int32_t Instance::memFillShared_m32(Instance* instance,
+                                                 uint32_t byteOffset,
+                                                 uint32_t value, uint32_t len,
+                                                 uint8_t* memBase) {
+  MOZ_ASSERT(SASigMemFillSharedM32.failureMode == FailureMode::FailOnNegI32);
+  return MemoryFillShared(byteOffset, value, len, memBase);
+}
 
-  MOZ_RELEASE_ASSERT(size_t(segIndex) < instance->passiveDataSegments_.length(),
-                     "ensured by validation");
+/* static */ int32_t Instance::memFill_m64(Instance* instance,
+                                           uint64_t byteOffset, uint32_t value,
+                                           uint64_t len, uint8_t* memBase) {
+  MOZ_ASSERT(SASigMemFillM64.failureMode == FailureMode::FailOnNegI32);
+  return MemoryFill(byteOffset, value, len, memBase);
+}
+
+/* static */ int32_t Instance::memFillShared_m64(Instance* instance,
+                                                 uint64_t byteOffset,
+                                                 uint32_t value, uint64_t len,
+                                                 uint8_t* memBase) {
+  MOZ_ASSERT(SASigMemFillSharedM64.failureMode == FailureMode::FailOnNegI32);
+  return MemoryFillShared(byteOffset, value, len, memBase);
+}
 
-  if (!instance->passiveDataSegments_[segIndex]) {
+static bool BoundsCheckInit(uint32_t dstOffset, uint32_t srcOffset,
+                            uint32_t len, size_t memLen, uint32_t segLen) {
+  uint64_t dstOffsetLimit = uint64_t(dstOffset) + uint64_t(len);
+  uint64_t srcOffsetLimit = uint64_t(srcOffset) + uint64_t(len);
+
+  return dstOffsetLimit > memLen || srcOffsetLimit > segLen;
+}
+
+static bool BoundsCheckInit(uint64_t dstOffset, uint32_t srcOffset,
+                            uint32_t len, size_t memLen, uint32_t segLen) {
+  uint64_t dstOffsetLimit = dstOffset + uint64_t(len);
+  uint64_t srcOffsetLimit = uint64_t(srcOffset) + uint64_t(len);
+
+  return dstOffsetLimit < dstOffset || dstOffsetLimit > memLen ||
+         srcOffsetLimit > segLen;
+}
+
+template <typename I>
+static int32_t MemoryInit(Instance* instance, I dstOffset, uint32_t srcOffset,
+                          uint32_t len, const DataSegment* maybeSeg) {
+  if (!maybeSeg) {
     if (len == 0 && srcOffset == 0) {
       return 0;
     }
@@ -569,7 +716,7 @@
     return -1;
   }
 
-  const DataSegment& seg = *instance->passiveDataSegments_[segIndex];
+  const DataSegment& seg = *maybeSeg;
   MOZ_RELEASE_ASSERT(!seg.active());
 
   const uint32_t segLen = seg.bytes.length();
@@ -583,11 +730,7 @@
   // to
   //   memoryBase[ dstOffset .. dstOffset + len - 1 ]
 
-  // Bounds check and deal with arithmetic overflow.
-  uint64_t dstOffsetLimit = uint64_t(dstOffset) + uint64_t(len);
-  uint64_t srcOffsetLimit = uint64_t(srcOffset) + uint64_t(len);
-
-  if (dstOffsetLimit > memLen || srcOffsetLimit > segLen) {
+  if (BoundsCheckInit(dstOffset, srcOffset, len, memLen, segLen)) {
     JS_ReportErrorNumberASCII(TlsContext.get(), GetErrorMessage, nullptr,
                               JSMSG_WASM_OUT_OF_BOUNDS);
     return -1;
@@ -598,14 +741,40 @@
   SharedMem<uint8_t*> dataPtr = mem->buffer().dataPointerEither();
   if (mem->isShared()) {
     AtomicOperations::memcpySafeWhenRacy(
-        dataPtr + dstOffset, (uint8_t*)seg.bytes.begin() + srcOffset, len);
+        dataPtr + uintptr_t(dstOffset), (uint8_t*)seg.bytes.begin() + srcOffset,
+        len);
   } else {
     uint8_t* rawBuf = dataPtr.unwrap(/*Unshared*/);
-    memcpy(rawBuf + dstOffset, (const char*)seg.bytes.begin() + srcOffset, len);
+    memcpy(rawBuf + uintptr_t(dstOffset),
+           (const char*)seg.bytes.begin() + srcOffset, len);
   }
   return 0;
 }
 
+/* static */ int32_t Instance::memInit_m32(Instance* instance,
+                                           uint32_t dstOffset,
+                                           uint32_t srcOffset, uint32_t len,
+                                           uint32_t segIndex) {
+  MOZ_ASSERT(SASigMemInitM32.failureMode == FailureMode::FailOnNegI32);
+  MOZ_RELEASE_ASSERT(size_t(segIndex) < instance->passiveDataSegments_.length(),
+                     "ensured by validation");
+
+  return MemoryInit(instance, dstOffset, srcOffset, len,
+                    instance->passiveDataSegments_[segIndex]);
+}
+
+/* static */ int32_t Instance::memInit_m64(Instance* instance,
+                                           uint64_t dstOffset,
+                                           uint32_t srcOffset, uint32_t len,
+                                           uint32_t segIndex) {
+  MOZ_ASSERT(SASigMemInitM64.failureMode == FailureMode::FailOnNegI32);
+  MOZ_RELEASE_ASSERT(size_t(segIndex) < instance->passiveDataSegments_.length(),
+                     "ensured by validation");
+
+  return MemoryInit(instance, dstOffset, srcOffset, len,
+                    instance->passiveDataSegments_[segIndex]);
+}
+
 //////////////////////////////////////////////////////////////////////////////
 //
 // Bulk table operations.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmInstance.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmInstance.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmInstance.h	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmInstance.h	2021-10-20 19:28:30.000000000 +0000
@@ -193,31 +193,42 @@
  public:
   // Functions to be called directly from wasm code.
   static int32_t callImport_general(Instance*, int32_t, int32_t, uint64_t*);
-  static uint32_t memoryGrow_i32(Instance* instance, uint32_t delta);
-  static uint32_t memorySize_i32(Instance* instance);
-  static int32_t wait_i32(Instance* instance, uint32_t byteOffset,
-                          int32_t value, int64_t timeout);
-  static int32_t wait_i64(Instance* instance, uint32_t byteOffset,
-                          int64_t value, int64_t timeout);
-  static int32_t wake(Instance* instance, uint32_t byteOffset, int32_t count);
-  static int32_t memCopy32(Instance* instance, uint32_t dstByteOffset,
-                           uint32_t srcByteOffset, uint32_t len,
-                           uint8_t* memBase);
-  static int32_t memCopyShared32(Instance* instance, uint32_t dstByteOffset,
-                                 uint32_t srcByteOffset, uint32_t len,
-                                 uint8_t* memBase);
+  static uint32_t memoryGrow_m32(Instance* instance, uint32_t delta);
+  static uint64_t memoryGrow_m64(Instance* instance, uint64_t delta);
+  static uint32_t memorySize_m32(Instance* instance);
+  static uint64_t memorySize_m64(Instance* instance);
+  static int32_t memCopy_m32(Instance* instance, uint32_t dstByteOffset,
+                             uint32_t srcByteOffset, uint32_t len,
+                             uint8_t* memBase);
+  static int32_t memCopyShared_m32(Instance* instance, uint32_t dstByteOffset,
+                                   uint32_t srcByteOffset, uint32_t len,
+                                   uint8_t* memBase);
+  static int32_t memCopy_m64(Instance* instance, uint64_t dstByteOffset,
+                             uint64_t srcByteOffset, uint64_t len,
+                             uint8_t* memBase);
+  static int32_t memCopyShared_m64(Instance* instance, uint64_t dstByteOffset,
+                                   uint64_t srcByteOffset, uint64_t len,
+                                   uint8_t* memBase);
+  static int32_t memFill_m32(Instance* instance, uint32_t byteOffset,
+                             uint32_t value, uint32_t len, uint8_t* memBase);
+  static int32_t memFillShared_m32(Instance* instance, uint32_t byteOffset,
+                                   uint32_t value, uint32_t len,
+                                   uint8_t* memBase);
+  static int32_t memFill_m64(Instance* instance, uint64_t byteOffset,
+                             uint32_t value, uint64_t len, uint8_t* memBase);
+  static int32_t memFillShared_m64(Instance* instance, uint64_t byteOffset,
+                                   uint32_t value, uint64_t len,
+                                   uint8_t* memBase);
+  static int32_t memInit_m32(Instance* instance, uint32_t dstOffset,
+                             uint32_t srcOffset, uint32_t len,
+                             uint32_t segIndex);
+  static int32_t memInit_m64(Instance* instance, uint64_t dstOffset,
+                             uint32_t srcOffset, uint32_t len,
+                             uint32_t segIndex);
   static int32_t dataDrop(Instance* instance, uint32_t segIndex);
-  static int32_t memFill32(Instance* instance, uint32_t byteOffset,
-                           uint32_t value, uint32_t len, uint8_t* memBase);
-  static int32_t memFillShared32(Instance* instance, uint32_t byteOffset,
-                                 uint32_t value, uint32_t len,
-                                 uint8_t* memBase);
-  static int32_t memInit32(Instance* instance, uint32_t dstOffset,
-                           uint32_t srcOffset, uint32_t len, uint32_t segIndex);
   static int32_t tableCopy(Instance* instance, uint32_t dstOffset,
                            uint32_t srcOffset, uint32_t len,
                            uint32_t dstTableIndex, uint32_t srcTableIndex);
-  static int32_t elemDrop(Instance* instance, uint32_t segIndex);
   static int32_t tableFill(Instance* instance, uint32_t start, void* value,
                            uint32_t len, uint32_t tableIndex);
   static void* tableGet(Instance* instance, uint32_t index,
@@ -230,6 +241,19 @@
   static int32_t tableInit(Instance* instance, uint32_t dstOffset,
                            uint32_t srcOffset, uint32_t len, uint32_t segIndex,
                            uint32_t tableIndex);
+  static int32_t elemDrop(Instance* instance, uint32_t segIndex);
+  static int32_t wait_i32_m32(Instance* instance, uint32_t byteOffset,
+                              int32_t value, int64_t timeout);
+  static int32_t wait_i32_m64(Instance* instance, uint64_t byteOffset,
+                              int32_t value, int64_t timeout);
+  static int32_t wait_i64_m32(Instance* instance, uint32_t byteOffset,
+                              int64_t value, int64_t timeout);
+  static int32_t wait_i64_m64(Instance* instance, uint64_t byteOffset,
+                              int64_t value, int64_t timeout);
+  static int32_t wake_m32(Instance* instance, uint32_t byteOffset,
+                          int32_t count);
+  static int32_t wake_m64(Instance* instance, uint64_t byteOffset,
+                          int32_t count);
   static void* refFunc(Instance* instance, uint32_t funcIndex);
   static void preBarrierFiltering(Instance* instance, gc::Cell** location);
   static void postBarrier(Instance* instance, gc::Cell** location);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmIonCompile.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmIonCompile.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmIonCompile.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmIonCompile.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -854,11 +854,7 @@
   // If the bounds checking strategy requires it, load the bounds check limit
   // from the Tls.
   MWasmLoadTls* maybeLoadBoundsCheckLimit(MIRType type) {
-#ifdef JS_64BIT
     MOZ_ASSERT(type == MIRType::Int32 || type == MIRType::Int64);
-#else
-    MOZ_ASSERT(type == MIRType::Int32);
-#endif
     if (moduleEnv_.hugeMemoryEnabled()) {
       return nullptr;
     }
@@ -886,8 +882,14 @@
 
     // If the EA is known and aligned it will need no checks.
     if (base->isConstant()) {
-      int32_t ptr = base->toConstant()->toInt32();
-      // OK to wrap around the address computation here.
+      // We only care about the low bits, so overflow is OK, as is chopping off
+      // the high bits of an i64 pointer.
+      uint32_t ptr = 0;
+      if (isMem64()) {
+        ptr = uint32_t(base->toConstant()->toInt64());
+      } else {
+        ptr = base->toConstant()->toInt32();
+      }
       if (((ptr + access->offset()) & (access->byteSize() - 1)) == 0) {
         return false;
       }
@@ -908,14 +910,27 @@
         GetMaxOffsetGuardLimit(moduleEnv_.hugeMemoryEnabled());
 
     if ((*base)->isConstant()) {
-      uint32_t basePtr = (*base)->toConstant()->toInt32();
+      uint64_t basePtr = 0;
+      if (isMem64()) {
+        basePtr = uint64_t((*base)->toConstant()->toInt64());
+      } else {
+        basePtr = uint64_t(int64_t((*base)->toConstant()->toInt32()));
+      }
+
       uint32_t offset = access->offset();
 
       if (offset < offsetGuardLimit && basePtr < offsetGuardLimit - offset) {
-        auto* ins = MConstant::New(alloc(), Int32Value(0), MIRType::Int32);
+        offset += uint32_t(basePtr);
+        access->setOffset(offset);
+
+        MConstant* ins = nullptr;
+        if (isMem64()) {
+          ins = MConstant::NewInt64(alloc(), 0);
+        } else {
+          ins = MConstant::New(alloc(), Int32Value(0), MIRType::Int32);
+        }
         curBlock_->add(ins);
         *base = ins;
-        access->setOffset(access->offset() + basePtr);
       }
     }
   }
@@ -933,7 +948,7 @@
     }
   }
 
-  MWasmLoadTls* needBoundsCheck(bool* limitIs64Bits_) {
+  MWasmLoadTls* needBoundsCheck() {
 #ifdef JS_64BIT
     // For 32-bit base pointers:
     //
@@ -944,38 +959,35 @@
     //
     // If the memory's max size is known to be smaller than 64K pages exactly,
     // we can use a 32-bit check and avoid extension and wrapping.
-    bool limitIs64Bits =
-        !moduleEnv_.memory->boundsCheckLimitIs32Bits() &&
+    bool mem32LimitIs64Bits =
+        isMem32() && !moduleEnv_.memory->boundsCheckLimitIs32Bits() &&
         ArrayBufferObject::maxBufferByteLength() >= 0x100000000;
 #else
     // On 32-bit platforms we have no more than 2GB memory and the limit for a
     // 32-bit base pointer is never a 64-bit value.
-    bool limitIs64Bits = false;
+    bool mem32LimitIs64Bits = false;
 #endif
-    MWasmLoadTls* boundsCheckLimit = maybeLoadBoundsCheckLimit(
-        limitIs64Bits ? MIRType::Int64 : MIRType::Int32);
-    if (boundsCheckLimit) {
-      *limitIs64Bits_ = limitIs64Bits;
-    }
-    return boundsCheckLimit;
+    return maybeLoadBoundsCheckLimit(
+        mem32LimitIs64Bits || isMem64() ? MIRType::Int64 : MIRType::Int32);
   }
 
-  void performBoundsCheck(MDefinition** base, MWasmLoadTls* boundsCheckLimit,
-                          bool limitIs64Bits) {
-    // At the outset, actualBase could be the result of pretty much any i32
-    // operation, or it could be the load of an i32 constant.  We may assume
-    // the value has a canonical representation for the platform, see doc
-    // block in MacroAssembler.h.
+  void performBoundsCheck(MDefinition** base, MWasmLoadTls* boundsCheckLimit) {
+    // At the outset, actualBase could be the result of pretty much any integer
+    // operation, or it could be the load of an integer constant.  If its type
+    // is i32, we may assume the value has a canonical representation for the
+    // platform, see doc block in MacroAssembler.h.
     MDefinition* actualBase = *base;
 
-    // Extend the index value to perform a 64-bit bounds check if the memory
-    // can be 4GB.
-
-    if (limitIs64Bits) {
+    // Extend an i32 index value to perform a 64-bit bounds check if the memory
+    // can be 4GB or larger.
+    bool extendAndWrapIndex =
+        isMem32() && boundsCheckLimit->type() == MIRType::Int64;
+    if (extendAndWrapIndex) {
       auto* extended = MWasmExtendU32Index::New(alloc(), actualBase);
       curBlock_->add(extended);
       actualBase = extended;
     }
+
     auto* ins = MWasmBoundsCheck::New(alloc(), actualBase, boundsCheckLimit,
                                       bytecodeOffset());
     curBlock_->add(ins);
@@ -984,9 +996,8 @@
     // If we're masking, then we update *base to create a dependency chain
     // through the masked index.  But we will first need to wrap the index
     // value if it was extended above.
-
     if (JitOptions.spectreIndexMasking) {
-      if (limitIs64Bits) {
+      if (extendAndWrapIndex) {
         auto* wrapped = MWasmWrapU32Index::New(alloc(), actualBase);
         curBlock_->add(wrapped);
         actualBase = wrapped;
@@ -997,6 +1008,12 @@
 
   // Perform all necessary checking before a wasm heap access, based on the
   // attributes of the access and base pointer.
+  //
+  // For 64-bit indices on platforms that are limited to indices that fit into
+  // 32 bits (all 32-bit platforms and mips64), this returns a bounds-checked
+  // `base` that has type Int32.  Lowering code depends on this and will assert
+  // that the base has this type.  See the end of this function.
+
   void checkOffsetAndAlignmentAndBounds(MemoryAccessDesc* access,
                                         MDefinition** base) {
     MOZ_ASSERT(!inDeadCode());
@@ -1025,11 +1042,25 @@
 
     // Emit the bounds check if necessary; it traps if it fails.  This may
     // update *base.
-    bool limitIs64Bits = false;
-    MWasmLoadTls* boundsCheckLimit = needBoundsCheck(&limitIs64Bits);
+    MWasmLoadTls* boundsCheckLimit = needBoundsCheck();
     if (boundsCheckLimit) {
-      performBoundsCheck(base, boundsCheckLimit, limitIs64Bits);
+      performBoundsCheck(base, boundsCheckLimit);
     }
+
+#ifndef JS_64BIT
+    if (isMem64()) {
+      // We must have had an explicit bounds check (or one was elided if it was
+      // proved redundant), and on 32-bit systems the index will for sure fit in
+      // 32 bits: the max memory is 2GB.  So chop the index down to 32-bit to
+      // simplify the back-end.
+      MOZ_ASSERT((*base)->type() == MIRType::Int64);
+      MOZ_ASSERT(!moduleEnv_.hugeMemoryEnabled());
+      auto* chopped = MWasmWrapU32Index::New(alloc(), *base);
+      MOZ_ASSERT(chopped->type() == MIRType::Int32);
+      curBlock_->add(chopped);
+      *base = chopped;
+    }
+#endif
   }
 
   bool isSmallerAccessForI64(ValType result, const MemoryAccessDesc* access) {
@@ -1042,6 +1073,9 @@
   }
 
  public:
+  bool isMem32() { return moduleEnv_.memory->indexType() == IndexType::I32; }
+  bool isMem64() { return moduleEnv_.memory->indexType() == IndexType::I64; }
+
   // Add the offset into the pointer to yield the EA; trap on overflow.
   MDefinition* computeEffectiveAddress(MDefinition* base,
                                        MemoryAccessDesc* access) {
@@ -1074,6 +1108,9 @@
                                  access->type());
     } else {
       checkOffsetAndAlignmentAndBounds(access, &base);
+#ifndef JS_64BIT
+      MOZ_ASSERT(base->type() == MIRType::Int32);
+#endif
       load =
           MWasmLoad::New(alloc(), memoryBase, base, *access, ToMIRType(result));
     }
@@ -1099,6 +1136,9 @@
                                    access->type(), v);
     } else {
       checkOffsetAndAlignmentAndBounds(access, &base);
+#ifndef JS_64BIT
+      MOZ_ASSERT(base->type() == MIRType::Int32);
+#endif
       store = MWasmStore::New(alloc(), memoryBase, base, *access, v);
     }
     if (!store) {
@@ -1116,6 +1156,9 @@
     }
 
     checkOffsetAndAlignmentAndBounds(access, &base);
+#ifndef JS_64BIT
+    MOZ_ASSERT(base->type() == MIRType::Int32);
+#endif
 
     if (isSmallerAccessForI64(result, access)) {
       auto* cvtOldv =
@@ -1153,6 +1196,9 @@
     }
 
     checkOffsetAndAlignmentAndBounds(access, &base);
+#ifndef JS_64BIT
+    MOZ_ASSERT(base->type() == MIRType::Int32);
+#endif
 
     if (isSmallerAccessForI64(result, access)) {
       auto* cvtValue =
@@ -1186,6 +1232,9 @@
     }
 
     checkOffsetAndAlignmentAndBounds(access, &base);
+#ifndef JS_64BIT
+    MOZ_ASSERT(base->type() == MIRType::Int32);
+#endif
 
     if (isSmallerAccessForI64(result, access)) {
       auto* cvtValue =
@@ -1279,6 +1328,9 @@
     MDefinition* base = addr.base;
     MOZ_ASSERT(!moduleEnv_.isAsmJS());
     checkOffsetAndAlignmentAndBounds(&access, &base);
+#  ifndef JS_64BIT
+    MOZ_ASSERT(base->type() == MIRType::Int32);
+#  endif
     MInstruction* load = MWasmLoadLaneSimd128::New(
         alloc(), memoryBase, base, access, laneSize, laneIndex, src);
     if (!load) {
@@ -1300,6 +1352,9 @@
     MDefinition* base = addr.base;
     MOZ_ASSERT(!moduleEnv_.isAsmJS());
     checkOffsetAndAlignmentAndBounds(&access, &base);
+#  ifndef JS_64BIT
+    MOZ_ASSERT(base->type() == MIRType::Int32);
+#  endif
     MInstruction* store = MWasmStoreLaneSimd128::New(
         alloc(), memoryBase, base, access, laneSize, laneIndex, src);
     if (!store) {
@@ -3287,6 +3342,7 @@
     return false;
   }
 
+  MOZ_ASSERT(f.isMem32());  // asm.js opcode
   MemoryAccessDesc access(viewType, addr.align, addr.offset,
                           f.bytecodeIfNotAsmJS());
 
@@ -3311,6 +3367,7 @@
     MOZ_CRASH("unexpected coerced store");
   }
 
+  MOZ_ASSERT(f.isMem32());  // asm.js opcode
   MemoryAccessDesc access(viewType, addr.align, addr.offset,
                           f.bytecodeIfNotAsmJS());
 
@@ -3411,7 +3468,9 @@
 static bool EmitMemoryGrow(FunctionCompiler& f) {
   uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode();
 
-  const SymbolicAddressSignature& callee = SASigMemoryGrow;
+  const SymbolicAddressSignature& callee =
+      !f.moduleEnv().usesMemory() || f.isMem32() ? SASigMemoryGrowM32
+                                                 : SASigMemoryGrowM64;
   CallCompileState args;
   if (!f.passInstance(callee.argTypes[0], &args)) {
     return false;
@@ -3440,7 +3499,9 @@
 static bool EmitMemorySize(FunctionCompiler& f) {
   uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode();
 
-  const SymbolicAddressSignature& callee = SASigMemorySize;
+  const SymbolicAddressSignature& callee =
+      !f.moduleEnv().usesMemory() || f.isMem32() ? SASigMemorySizeM32
+                                                 : SASigMemorySizeM64;
   CallCompileState args;
 
   if (!f.iter().readMemorySize()) {
@@ -3542,7 +3603,8 @@
   uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode();
 
   const SymbolicAddressSignature& callee =
-      type == ValType::I32 ? SASigWaitI32 : SASigWaitI64;
+      f.isMem32() ? (type == ValType::I32 ? SASigWaitI32M32 : SASigWaitI64M32)
+                  : (type == ValType::I32 ? SASigWaitI32M64 : SASigWaitI64M64);
   CallCompileState args;
   if (!f.passInstance(callee.argTypes[0], &args)) {
     return false;
@@ -3600,7 +3662,8 @@
 static bool EmitWake(FunctionCompiler& f) {
   uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode();
 
-  const SymbolicAddressSignature& callee = SASigWake;
+  const SymbolicAddressSignature& callee =
+      f.isMem32() ? SASigWakeM32 : SASigWakeM64;
   CallCompileState args;
   if (!f.passInstance(callee.argTypes[0], &args)) {
     return false;
@@ -3664,8 +3727,9 @@
   uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode();
 
   const SymbolicAddressSignature& callee =
-      (f.moduleEnv().usesSharedMemory() ? SASigMemCopyShared32
-                                        : SASigMemCopy32);
+      (f.moduleEnv().usesSharedMemory()
+           ? (f.isMem32() ? SASigMemCopySharedM32 : SASigMemCopySharedM64)
+           : (f.isMem32() ? SASigMemCopyM32 : SASigMemCopyM64));
   CallCompileState args;
   if (!f.passInstance(callee.argTypes[0], &args)) {
     return false;
@@ -3691,8 +3755,8 @@
   return f.builtinInstanceMethodCall(callee, lineOrBytecode, args);
 }
 
-static bool EmitMemCopyInline(FunctionCompiler& f, MDefinition* dst,
-                              MDefinition* src, MDefinition* len) {
+static bool EmitMemCopyInlineM32(FunctionCompiler& f, MDefinition* dst,
+                                 MDefinition* src, MDefinition* len) {
   MOZ_ASSERT(MaxInlineMemoryCopyLength != 0);
 
   MOZ_ASSERT(len->isConstant() && len->type() == MIRType::Int32);
@@ -3841,10 +3905,12 @@
     return true;
   }
 
-  if (len->isConstant() && len->type() == MIRType::Int32 &&
-      len->toConstant()->toInt32() != 0 &&
-      uint32_t(len->toConstant()->toInt32()) <= MaxInlineMemoryCopyLength) {
-    return EmitMemCopyInline(f, dst, src, len);
+  if (f.isMem32()) {
+    if (len->isConstant() && len->type() == MIRType::Int32 &&
+        len->toConstant()->toInt32() != 0 &&
+        uint32_t(len->toConstant()->toInt32()) <= MaxInlineMemoryCopyLength) {
+      return EmitMemCopyInlineM32(f, dst, src, len);
+    }
   }
   return EmitMemCopyCall(f, dst, src, len);
 }
@@ -3937,7 +4003,9 @@
   uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode();
 
   const SymbolicAddressSignature& callee =
-      f.moduleEnv().usesSharedMemory() ? SASigMemFillShared32 : SASigMemFill32;
+      (f.moduleEnv().usesSharedMemory()
+           ? (f.isMem32() ? SASigMemFillSharedM32 : SASigMemFillSharedM64)
+           : (f.isMem32() ? SASigMemFillM32 : SASigMemFillM64));
   CallCompileState args;
   if (!f.passInstance(callee.argTypes[0], &args)) {
     return false;
@@ -3964,8 +4032,8 @@
   return f.builtinInstanceMethodCall(callee, lineOrBytecode, args);
 }
 
-static bool EmitMemFillInline(FunctionCompiler& f, MDefinition* start,
-                              MDefinition* val, MDefinition* len) {
+static bool EmitMemFillInlineM32(FunctionCompiler& f, MDefinition* start,
+                                 MDefinition* val, MDefinition* len) {
   MOZ_ASSERT(MaxInlineMemoryFillLength != 0);
 
   MOZ_ASSERT(len->isConstant() && len->type() == MIRType::Int32 &&
@@ -4069,11 +4137,13 @@
     return true;
   }
 
-  if (len->isConstant() && len->type() == MIRType::Int32 &&
-      len->toConstant()->toInt32() != 0 &&
-      uint32_t(len->toConstant()->toInt32()) <= MaxInlineMemoryFillLength &&
-      val->isConstant() && val->type() == MIRType::Int32) {
-    return EmitMemFillInline(f, start, val, len);
+  if (f.isMem32()) {
+    if (len->isConstant() && len->type() == MIRType::Int32 &&
+        len->toConstant()->toInt32() != 0 &&
+        uint32_t(len->toConstant()->toInt32()) <= MaxInlineMemoryFillLength &&
+        val->isConstant() && val->type() == MIRType::Int32) {
+      return EmitMemFillInlineM32(f, start, val, len);
+    }
   }
   return EmitMemFillCall(f, start, val, len);
 }
@@ -4093,7 +4163,8 @@
   uint32_t lineOrBytecode = f.readCallSiteLineOrBytecode();
 
   const SymbolicAddressSignature& callee =
-      isMem ? SASigMemInit32 : SASigTableInit;
+      isMem ? (f.isMem32() ? SASigMemInitM32 : SASigMemInitM64)
+            : SASigTableInit;
   CallCompileState args;
   if (!f.passInstance(callee.argTypes[0], &args)) {
     return false;
@@ -5885,7 +5956,11 @@
     MIRGenerator mir(nullptr, options, &alloc, &graph, &compileInfo,
                      IonOptimizations.get(OptimizationLevel::Wasm));
     if (moduleEnv.usesMemory()) {
-      mir.initMinWasmHeapLength(moduleEnv.memory->initialLength32());
+      if (moduleEnv.memory->indexType() == IndexType::I32) {
+        mir.initMinWasmHeapLength(moduleEnv.memory->initialLength32());
+      } else {
+        mir.initMinWasmHeapLength(moduleEnv.memory->initialLength64());
+      }
     }
 
     // Build MIR graph
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmJS.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmJS.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmJS.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmJS.cpp	2021-10-20 19:28:29.000000000 +0000
@@ -779,10 +779,6 @@
   // be used into CompileAndSerialize().
   compileArgs->ionEnabled = true;
 
-  // The caller must ensure that huge memory support is configured the same in
-  // the receiving process of this serialized module.
-  compileArgs->features.hugeMemory = wasm::IsHugeMemoryEnabled();
-
   SerializeListener listener(serialized);
 
   UniqueChars error;
@@ -1146,6 +1142,7 @@
 }
 
 static JSObject* MemoryTypeToObject(JSContext* cx, bool shared,
+                                    wasm::IndexType indexType,
                                     wasm::Pages minPages,
                                     Maybe<wasm::Pages> maxPages) {
   Rooted<IdValueVector> props(cx, IdValueVector(cx));
@@ -1165,6 +1162,16 @@
     return nullptr;
   }
 
+#  ifdef ENABLE_WASM_MEMORY64
+  RootedString it(
+      cx, JS_NewStringCopyZ(cx, indexType == IndexType::I32 ? "i32" : "i64"));
+  if (!props.append(
+          IdValuePair(NameToId(cx->names().index), StringValue(it)))) {
+    ReportOutOfMemory(cx);
+    return nullptr;
+  }
+#  endif
+
   if (!props.append(
           IdValuePair(NameToId(cx->names().shared), BooleanValue(shared)))) {
     ReportOutOfMemory(cx);
@@ -1450,8 +1457,8 @@
         MOZ_ASSERT(memoryIndex == 0);
         const MemoryDesc& memory = *metadata.memory;
         typeObj =
-            MemoryTypeToObject(cx, memory.isShared(), memory.initialPages(),
-                               memory.maximumPages());
+            MemoryTypeToObject(cx, memory.isShared(), memory.indexType(),
+                               memory.initialPages(), memory.maximumPages());
         break;
       }
       case DefinitionKind::Global: {
@@ -1557,8 +1564,8 @@
       case DefinitionKind::Memory: {
         const MemoryDesc& memory = *metadata.memory;
         typeObj =
-            MemoryTypeToObject(cx, memory.isShared(), memory.initialPages(),
-                               memory.maximumPages());
+            MemoryTypeToObject(cx, memory.isShared(), memory.indexType(),
+                               memory.initialPages(), memory.maximumPages());
         break;
       }
       case DefinitionKind::Global: {
@@ -2575,7 +2582,7 @@
 
 /* static */
 WasmMemoryObject* WasmMemoryObject::create(
-    JSContext* cx, HandleArrayBufferObjectMaybeShared buffer,
+    JSContext* cx, HandleArrayBufferObjectMaybeShared buffer, bool isHuge,
     HandleObject proto) {
   AutoSetNewObjectMetadata metadata(cx);
   auto* obj = NewObjectWithGivenProto<WasmMemoryObject>(cx, proto);
@@ -2584,6 +2591,7 @@
   }
 
   obj->initReservedSlot(BUFFER_SLOT, ObjectValue(*buffer));
+  obj->initReservedSlot(ISHUGE_SLOT, BooleanValue(isHuge));
   MOZ_ASSERT(!obj->hasObservers());
 
   return obj;
@@ -2615,7 +2623,7 @@
     return false;
   }
 
-  if (Pages(limits.initial) > MaxMemoryPages()) {
+  if (Pages(limits.initial) > MaxMemoryPages(limits.indexType)) {
     JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr,
                              JSMSG_WASM_MEM_IMP_LIMIT);
     return false;
@@ -2623,7 +2631,7 @@
   MemoryDesc memory(limits);
 
   RootedArrayBufferObjectMaybeShared buffer(cx);
-  if (!CreateWasmBuffer32(cx, memory, &buffer)) {
+  if (!CreateWasmBuffer(cx, memory, &buffer)) {
     return false;
   }
 
@@ -2634,8 +2642,9 @@
     return false;
   }
 
-  RootedWasmMemoryObject memoryObj(cx,
-                                   WasmMemoryObject::create(cx, buffer, proto));
+  RootedWasmMemoryObject memoryObj(
+      cx, WasmMemoryObject::create(
+              cx, buffer, IsHugeMemoryEnabled(limits.indexType), proto));
   if (!memoryObj) {
     return false;
   }
@@ -2747,9 +2756,10 @@
 bool WasmMemoryObject::typeImpl(JSContext* cx, const CallArgs& args) {
   RootedWasmMemoryObject memoryObj(
       cx, &args.thisv().toObject().as<WasmMemoryObject>());
-  RootedObject typeObj(cx, MemoryTypeToObject(cx, memoryObj->isShared(),
-                                              memoryObj->volatilePages(),
-                                              memoryObj->sourceMaxPages()));
+  RootedObject typeObj(
+      cx, MemoryTypeToObject(cx, memoryObj->isShared(), memoryObj->indexType(),
+                             memoryObj->volatilePages(),
+                             memoryObj->sourceMaxPages()));
   if (!typeObj) {
     return false;
   }
@@ -2829,15 +2839,7 @@
 }
 
 bool WasmMemoryObject::isHuge() const {
-#ifdef WASM_SUPPORTS_HUGE_MEMORY
-  // TODO: Turn this into a static_assert, if we are able to make
-  // MaxMemoryBytes() constexpr once the dust settles for the 4GB heaps.
-  MOZ_ASSERT(MaxMemoryBytes() < HugeMappedSize,
-             "Non-huge buffer may be confused as huge");
-  return buffer().wasmMappedSize() >= HugeMappedSize;
-#else
-  return false;
-#endif
+  return getReservedSlot(ISHUGE_SLOT).toBoolean();
 }
 
 bool WasmMemoryObject::movingGrowable() const {
@@ -2860,7 +2862,7 @@
   MOZ_ASSERT(mappedSize >= wasm::GuardSize);
   MOZ_ASSERT(wasm::IsValidBoundsCheckImmediate(mappedSize - wasm::GuardSize));
   size_t limit = mappedSize - wasm::GuardSize;
-  MOZ_ASSERT(limit <= MaxMemoryBoundsCheckLimit());
+  MOZ_ASSERT(limit <= MaxMemoryBoundsCheckLimit(indexType()));
   return limit;
 }
 
@@ -2882,30 +2884,28 @@
 }
 
 /* static */
-uint32_t WasmMemoryObject::growShared(HandleWasmMemoryObject memory,
-                                      uint32_t delta) {
+uint64_t WasmMemoryObject::growShared(HandleWasmMemoryObject memory,
+                                      uint64_t delta) {
   SharedArrayRawBuffer* rawBuf = memory->sharedArrayRawBuffer();
   SharedArrayRawBuffer::Lock lock(rawBuf);
 
   Pages oldNumPages = rawBuf->volatileWasmPages();
   Pages newPages = oldNumPages;
   if (!newPages.checkedIncrement(Pages(delta))) {
-    return -1;
+    return uint64_t(int64_t(-1));
   }
 
-  if (!rawBuf->wasmGrowToPagesInPlace(lock, newPages)) {
-    return -1;
+  if (!rawBuf->wasmGrowToPagesInPlace(lock, memory->indexType(), newPages)) {
+    return uint64_t(int64_t(-1));
   }
   // New buffer objects will be created lazily in all agents (including in
   // this agent) by bufferGetterImpl, above, so no more work to do here.
 
-  // It is safe to cast to uint32_t, as oldNumPages was within our
-  // implementation limits of MaxMemoryPages(), which is within uint32_t.
-  return uint32_t(oldNumPages.value());
+  return oldNumPages.value();
 }
 
 /* static */
-uint32_t WasmMemoryObject::grow(HandleWasmMemoryObject memory, uint32_t delta,
+uint64_t WasmMemoryObject::grow(HandleWasmMemoryObject memory, uint64_t delta,
                                 JSContext* cx) {
   if (memory->isShared()) {
     return growShared(memory, delta);
@@ -2917,29 +2917,27 @@
   // TODO (large ArrayBuffer): For Cranelift, limit the memory size to something
   // that fits in a uint32_t.  See more information at the definition of
   // MaxMemoryBytes().
-  //
-  // TODO: Turn this into a static_assert, if we are able to make
-  // MaxMemoryBytes() constexpr once the dust settles for the 4GB heaps.
-  MOZ_ASSERT(MaxMemoryBytes() <= UINT32_MAX, "Avoid 32-bit overflows");
+  MOZ_ASSERT(MaxMemoryBytes(memory->indexType()) <= UINT32_MAX,
+             "Avoid 32-bit overflows");
 #endif
 
   Pages oldNumPages = oldBuf->wasmPages();
   Pages newPages = oldNumPages;
   if (!newPages.checkedIncrement(Pages(delta))) {
-    return -1;
+    return uint64_t(int64_t(-1));
   }
 
   RootedArrayBufferObject newBuf(cx);
 
   if (memory->movingGrowable()) {
     MOZ_ASSERT(!memory->isHuge());
-    if (!ArrayBufferObject::wasmMovingGrowToPages(newPages, oldBuf, &newBuf,
-                                                  cx)) {
-      return -1;
-    }
-  } else if (!ArrayBufferObject::wasmGrowToPagesInPlace(newPages, oldBuf,
-                                                        &newBuf, cx)) {
-    return -1;
+    if (!ArrayBufferObject::wasmMovingGrowToPages(memory->indexType(), newPages,
+                                                  oldBuf, &newBuf, cx)) {
+      return uint64_t(int64_t(-1));
+    }
+  } else if (!ArrayBufferObject::wasmGrowToPagesInPlace(
+                 memory->indexType(), newPages, oldBuf, &newBuf, cx)) {
+    return uint64_t(int64_t(-1));
   }
 
   memory->setReservedSlot(BUFFER_SLOT, ObjectValue(*newBuf));
@@ -2953,9 +2951,7 @@
     }
   }
 
-  // It is safe to cast to uint32_t, as oldNumPages was within our
-  // implementation limits of MaxMemoryPages(), which is within uint32_t.
-  return uint32_t(oldNumPages.value());
+  return oldNumPages.value();
 }
 
 bool js::wasm::IsSharedWasmMemoryObject(JSObject* obj) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmJS.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmJS.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmJS.h	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmJS.h	2021-10-20 19:28:30.000000000 +0000
@@ -365,6 +365,7 @@
 class WasmMemoryObject : public NativeObject {
   static const unsigned BUFFER_SLOT = 0;
   static const unsigned OBSERVERS_SLOT = 1;
+  static const unsigned ISHUGE_SLOT = 2;
   static const JSClassOps classOps_;
   static const ClassSpec classSpec_;
   static void finalize(JSFreeOp* fop, JSObject* obj);
@@ -374,7 +375,7 @@
   static bool type(JSContext* cx, unsigned argc, Value* vp);
   static bool growImpl(JSContext* cx, const CallArgs& args);
   static bool grow(JSContext* cx, unsigned argc, Value* vp);
-  static uint32_t growShared(HandleWasmMemoryObject memory, uint32_t delta);
+  static uint64_t growShared(HandleWasmMemoryObject memory, uint64_t delta);
 
   using InstanceSet =
       JS::WeakCache<GCHashSet<WeakHeapPtrWasmInstanceObject,
@@ -385,7 +386,7 @@
   InstanceSet* getOrCreateObservers(JSContext* cx);
 
  public:
-  static const unsigned RESERVED_SLOTS = 2;
+  static const unsigned RESERVED_SLOTS = 3;
   static const JSClass class_;
   static const JSClass& protoClass_;
   static const JSPropertySpec properties[];
@@ -395,7 +396,7 @@
 
   static WasmMemoryObject* create(JSContext* cx,
                                   Handle<ArrayBufferObjectMaybeShared*> buffer,
-                                  HandleObject proto);
+                                  bool isHuge, HandleObject proto);
 
   // `buffer()` returns the current buffer object always.  If the buffer
   // represents shared memory then `buffer().byteLength()` never changes, and
@@ -430,7 +431,7 @@
   SharedArrayRawBuffer* sharedArrayRawBuffer() const;
 
   bool addMovingGrowObserver(JSContext* cx, WasmInstanceObject* instance);
-  static uint32_t grow(HandleWasmMemoryObject memory, uint32_t delta,
+  static uint64_t grow(HandleWasmMemoryObject memory, uint64_t delta,
                        JSContext* cx);
 };
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmMemory.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmMemory.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmMemory.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmMemory.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -21,6 +21,7 @@
 #include "mozilla/MathAlgorithms.h"
 #include "vm/ArrayBufferObject.h"
 #include "wasm/WasmCodegenTypes.h"
+#include "wasm/WasmProcess.h"
 
 using mozilla::IsPowerOfTwo;
 
@@ -182,6 +183,68 @@
  * to be aligned, only the pointer need be checked.
  */
 
+// Bounds checks always compare the base of the memory access with the bounds
+// check limit. If the memory access is unaligned, this means that, even if the
+// bounds check succeeds, a few bytes of the access can extend past the end of
+// memory. To guard against this, extra space is included in the guard region to
+// catch the overflow. MaxMemoryAccessSize is a conservative approximation of
+// the maximum guard space needed to catch all unaligned overflows.
+//
+// Also see "Linear memory addresses and bounds checking" above.
+
+static const unsigned MaxMemoryAccessSize = LitVal::sizeofLargestValue();
+
+// All plausible targets must be able to do at least IEEE754 double
+// loads/stores, hence the lower limit of 8.  Some Intel processors support
+// AVX-512 loads/stores, hence the upper limit of 64.
+static_assert(MaxMemoryAccessSize >= 8, "MaxMemoryAccessSize too low");
+static_assert(MaxMemoryAccessSize <= 64, "MaxMemoryAccessSize too high");
+static_assert((MaxMemoryAccessSize & (MaxMemoryAccessSize - 1)) == 0,
+              "MaxMemoryAccessSize is not a power of two");
+
+#ifdef WASM_SUPPORTS_HUGE_MEMORY
+
+static_assert(MaxMemoryAccessSize <= HugeUnalignedGuardPage,
+              "rounded up to static page size");
+static_assert(HugeOffsetGuardLimit < UINT32_MAX,
+              "checking for overflow against OffsetGuardLimit is enough.");
+
+// We have only tested huge memory on x64 and arm64.
+#  if !(defined(JS_CODEGEN_X64) || defined(JS_CODEGEN_ARM64))
+#    error "Not an expected configuration"
+#  endif
+
+#endif
+
+// On !WASM_SUPPORTS_HUGE_MEMORY platforms:
+//  - To avoid OOM in ArrayBuffer::prepareForAsmJS, asm.js continues to use the
+//    original ArrayBuffer allocation which has no guard region at all.
+//  - For WebAssembly memories, an additional GuardSize is mapped after the
+//    accessible region of the memory to catch folded (base+offset) accesses
+//    where `offset < OffsetGuardLimit` as well as the overflow from unaligned
+//    accesses, as described above for MaxMemoryAccessSize.
+
+static const size_t OffsetGuardLimit = PageSize - MaxMemoryAccessSize;
+
+static_assert(MaxMemoryAccessSize < GuardSize,
+              "Guard page handles partial out-of-bounds");
+static_assert(OffsetGuardLimit < UINT32_MAX,
+              "checking for overflow against OffsetGuardLimit is enough.");
+
+size_t wasm::GetMaxOffsetGuardLimit(bool hugeMemory) {
+#ifdef WASM_SUPPORTS_HUGE_MEMORY
+  return hugeMemory ? HugeOffsetGuardLimit : OffsetGuardLimit;
+#else
+  return OffsetGuardLimit;
+#endif
+}
+
+// Assert that our minimum offset guard limit covers our inline
+// memory.copy/fill optimizations.
+static const size_t MinOffsetGuardLimit = OffsetGuardLimit;
+static_assert(MaxInlineMemoryCopyLength < MinOffsetGuardLimit, "precondition");
+static_assert(MaxInlineMemoryFillLength < MinOffsetGuardLimit, "precondition");
+
 #ifdef JS_64BIT
 #  ifdef ENABLE_WASM_CRANELIFT
 // TODO (large ArrayBuffer): Cranelift needs to be updated to use more than the
@@ -191,29 +254,41 @@
 // The "-2" here accounts for the !huge-memory case in CreateSpecificWasmBuffer,
 // which is guarding against an overflow.  Also see
 // WasmMemoryObject::boundsCheckLimit() for related assertions.
-wasm::Pages wasm::MaxMemoryPages() {
+wasm::Pages wasm::MaxMemoryPages(IndexType) {
   size_t desired = MaxMemory32LimitField - 2;
   size_t actual = ArrayBufferObject::maxBufferByteLength() / PageSize;
   return wasm::Pages(std::min(desired, actual));
 }
-
-size_t wasm::MaxMemoryBoundsCheckLimit() {
-  return UINT32_MAX - 2 * PageSize + 1;
-}
 #  else
-wasm::Pages wasm::MaxMemoryPages() {
-  size_t desired = MaxMemory32LimitField;
-  size_t actual = ArrayBufferObject::maxBufferByteLength() / PageSize;
+wasm::Pages wasm::MaxMemoryPages(IndexType t) {
+  size_t offsetGuardAllowance = 0;
+  if (t == IndexType::I64) {
+    // For memory64, the max memory size is larger than any reasonable buffer
+    // size.  The guard pages must fit within the confines of the buffer, so
+    // reduce the maximum actual memory size accordingly.  Since this memory is
+    // !huge, there is no extra page to deal with unaligned accesses.
+    MOZ_ASSERT(!IsHugeMemoryEnabled(t));
+    offsetGuardAllowance = OffsetGuardLimit;
+  }
+
+  size_t desired =
+      t == IndexType::I64 ? MaxMemory64LimitField : MaxMemory32LimitField;
+  size_t actual =
+      (ArrayBufferObject::maxBufferByteLength() - offsetGuardAllowance) /
+      PageSize;
   return wasm::Pages(std::min(desired, actual));
 }
-
-size_t wasm::MaxMemoryBoundsCheckLimit() { return size_t(UINT32_MAX) + 1; }
 #  endif
+
+size_t wasm::MaxMemoryBoundsCheckLimit(IndexType t) {
+  return MaxMemoryPages(t).byteLength();
+}
+
 #else
 // On 32-bit systems, the heap limit must be representable in the nonnegative
 // range of an int32_t, which means the maximum heap size as observed by wasm
 // code is one wasm page less than 2GB.
-wasm::Pages wasm::MaxMemoryPages() {
+wasm::Pages wasm::MaxMemoryPages(IndexType t) {
   MOZ_ASSERT(ArrayBufferObject::maxBufferByteLength() >= INT32_MAX / PageSize);
   return wasm::Pages(INT32_MAX / PageSize);
 }
@@ -221,7 +296,7 @@
 // The max bounds check limit can be larger than the MaxMemoryPages because it
 // is really MaxMemoryPages rounded up to the next valid bounds check immediate,
 // see ComputeMappedSize().
-size_t wasm::MaxMemoryBoundsCheckLimit() {
+size_t wasm::MaxMemoryBoundsCheckLimit(IndexType t) {
   size_t boundsCheckLimit = size_t(INT32_MAX) + 1;
   MOZ_ASSERT(IsValidBoundsCheckImmediate(boundsCheckLimit));
   return boundsCheckLimit;
@@ -262,7 +337,7 @@
   return i;
 }
 
-Pages wasm::ClampedMaxPages(Pages initialPages,
+Pages wasm::ClampedMaxPages(IndexType t, Pages initialPages,
                             const Maybe<Pages>& sourceMaxPages,
                             bool useHugeMemory) {
   Pages clampedMaxPages;
@@ -270,7 +345,7 @@
   if (sourceMaxPages.isSome()) {
     // There is a specified maximum, clamp it to the implementation limit of
     // maximum pages
-    clampedMaxPages = std::min(*sourceMaxPages, wasm::MaxMemoryPages());
+    clampedMaxPages = std::min(*sourceMaxPages, wasm::MaxMemoryPages(t));
 
 #if defined(JS_64BIT) && defined(ENABLE_WASM_CRANELIFT)
     // On 64-bit platforms when we aren't using huge memory and we're using
@@ -285,10 +360,10 @@
 #ifndef JS_64BIT
     static_assert(sizeof(uintptr_t) == 4, "assuming not 64 bit implies 32 bit");
 
-    // On 32-bit platforms, prevent applications specifying a large max
-    // (like MaxMemory32Pages) from unintentially OOMing the browser: they just
-    // want "a lot of memory". Maintain the invariant that
-    // initialPages <= clampedMaxPages.
+    // On 32-bit platforms, prevent applications specifying a large max (like
+    // MaxMemoryPages()) from unintentially OOMing the browser: they just want
+    // "a lot of memory". Maintain the invariant that initialPages <=
+    // clampedMaxPages.
     static const uint64_t OneGib = 1 << 30;
     static const Pages OneGibPages = Pages(OneGib >> wasm::PageBits);
     static_assert(HighestValidARMImmediate > OneGib,
@@ -300,13 +375,13 @@
   } else {
     // There is not a specified maximum, fill it in with the implementation
     // limit of maximum pages
-    clampedMaxPages = wasm::MaxMemoryPages();
+    clampedMaxPages = wasm::MaxMemoryPages(t);
   }
 
   // Double-check our invariants
   MOZ_RELEASE_ASSERT(sourceMaxPages.isNothing() ||
                      clampedMaxPages <= *sourceMaxPages);
-  MOZ_RELEASE_ASSERT(clampedMaxPages <= wasm::MaxMemoryPages());
+  MOZ_RELEASE_ASSERT(clampedMaxPages <= wasm::MaxMemoryPages(t));
   MOZ_RELEASE_ASSERT(initialPages <= clampedMaxPages);
 
   return clampedMaxPages;
@@ -317,9 +392,9 @@
   // implementation limits.
   size_t maxSize = clampedMaxPages.byteLength();
 
-  // It is the bounds-check limit, not the mapped size, that gets used by
-  // code. Thus round up the maxSize to the next valid immediate value *before*
-  // adding in the guard page.
+  // It is the bounds-check limit, not the mapped size, that gets baked into
+  // code. Thus round up the maxSize to the next valid immediate value
+  // *before* adding in the guard page.
   //
   // Also see "Wasm Linear Memory Structure" in vm/ArrayBufferObject.cpp.
   uint64_t boundsCheckLimit = RoundUpToNextValidBoundsCheckImmediate(maxSize);
@@ -345,73 +420,3 @@
   return i;
 #endif
 }
-
-// Bounds checks always compare the base of the memory access with the bounds
-// check limit. If the memory access is unaligned, this means that, even if the
-// bounds check succeeds, a few bytes of the access can extend past the end of
-// memory. To guard against this, extra space is included in the guard region to
-// catch the overflow. MaxMemoryAccessSize is a conservative approximation of
-// the maximum guard space needed to catch all unaligned overflows.
-//
-// Also see "Linear memory addresses and bounds checking" above.
-
-static const unsigned MaxMemoryAccessSize = LitVal::sizeofLargestValue();
-
-// All plausible targets must be able to do at least IEEE754 double
-// loads/stores, hence the lower limit of 8.  Some Intel processors support
-// AVX-512 loads/stores, hence the upper limit of 64.
-static_assert(MaxMemoryAccessSize >= 8, "MaxMemoryAccessSize too low");
-static_assert(MaxMemoryAccessSize <= 64, "MaxMemoryAccessSize too high");
-static_assert((MaxMemoryAccessSize & (MaxMemoryAccessSize - 1)) == 0,
-              "MaxMemoryAccessSize is not a power of two");
-
-#ifdef WASM_SUPPORTS_HUGE_MEMORY
-
-static_assert(MaxMemoryAccessSize <= HugeUnalignedGuardPage,
-              "rounded up to static page size");
-static_assert(HugeOffsetGuardLimit < UINT32_MAX,
-              "checking for overflow against OffsetGuardLimit is enough.");
-
-// We have only tested huge memory on x64 and arm64.
-#  if !(defined(JS_CODEGEN_X64) || defined(JS_CODEGEN_ARM64))
-#    error "Not an expected configuration"
-#  endif
-
-// TODO: We want this static_assert back, but it reqires MaxMemory32Bytes to be
-// a constant or constexpr function, not a regular function as now.
-//
-// The assert is also present in WasmMemoryObject::isHuge and
-// WasmMemoryObject::grow, so it's OK to comment out here for now.
-
-// static_assert(MaxMemory32Bytes < HugeMappedSize(),
-//               "Normal array buffer could be confused with huge memory");
-#endif
-
-// On !WASM_SUPPORTS_HUGE_MEMORY platforms:
-//  - To avoid OOM in ArrayBuffer::prepareForAsmJS, asm.js continues to use the
-//    original ArrayBuffer allocation which has no guard region at all.
-//  - For WebAssembly memories, an additional GuardSize is mapped after the
-//    accessible region of the memory to catch folded (base+offset) accesses
-//    where `offset < OffsetGuardLimit` as well as the overflow from unaligned
-//    accesses, as described above for MaxMemoryAccessSize.
-
-static const size_t OffsetGuardLimit = PageSize - MaxMemoryAccessSize;
-
-static_assert(MaxMemoryAccessSize < GuardSize,
-              "Guard page handles partial out-of-bounds");
-static_assert(OffsetGuardLimit < UINT32_MAX,
-              "checking for overflow against OffsetGuardLimit is enough.");
-
-size_t wasm::GetMaxOffsetGuardLimit(bool hugeMemory) {
-#ifdef WASM_SUPPORTS_HUGE_MEMORY
-  return hugeMemory ? HugeOffsetGuardLimit : OffsetGuardLimit;
-#else
-  return OffsetGuardLimit;
-#endif
-}
-
-// Assert that our minimum offset guard limit covers our inline
-// memory.copy/fill optimizations.
-static const size_t MinOffsetGuardLimit = OffsetGuardLimit;
-static_assert(MaxInlineMemoryCopyLength < MinOffsetGuardLimit, "precondition");
-static_assert(MaxInlineMemoryFillLength < MinOffsetGuardLimit, "precondition");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmMemory.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmMemory.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmMemory.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmMemory.h	2021-10-20 19:28:31.000000000 +0000
@@ -57,7 +57,7 @@
 // We represent byte lengths using the native word size, as it is assumed that
 // consumers of this API will only need byte lengths once it is time to
 // allocate memory, at which point the pages will be checked against the
-// implementation limits `MaxMemory32Pages()` and will then be guaranteed to
+// implementation limits `MaxMemoryPages()` and will then be guaranteed to
 // fit in a native word.
 struct Pages {
  private:
@@ -120,19 +120,19 @@
 };
 
 // The largest number of pages the application can request.
-extern Pages MaxMemoryPages();
+extern Pages MaxMemoryPages(IndexType t);
 
-// The byte value of MaxMemoryPages().
-static inline size_t MaxMemoryBytes() { return MaxMemoryPages().byteLength(); }
+// The byte value of MaxMemoryPages(t).
+static inline size_t MaxMemoryBytes(IndexType t) {
+  return MaxMemoryPages(t).byteLength();
+}
 
-// A value at least as large as MaxMemoryBytes() representing the largest valid
+// A value at least as large as MaxMemoryBytes(t) representing the largest valid
 // bounds check limit on the system.  (It can be larger than MaxMemoryBytes()
 // because bounds check limits are rounded up to fit formal requirements on some
 // platforms.  Also see ComputeMappedSize().)
-extern size_t MaxMemoryBoundsCheckLimit();
+extern size_t MaxMemoryBoundsCheckLimit(IndexType t);
 
-// The largest value allowed for the 'maximum' field of a memory of the given
-// type.
 static inline uint64_t MaxMemoryLimitField(IndexType indexType) {
   return indexType == IndexType::I32 ? MaxMemory32LimitField
                                      : MaxMemory64LimitField;
@@ -140,7 +140,7 @@
 
 // Compute the 'clamped' maximum size of a memory. See
 // 'WASM Linear Memory structure' in ArrayBufferObject.cpp for background.
-extern Pages ClampedMaxPages(Pages initialPages,
+extern Pages ClampedMaxPages(IndexType t, Pages initialPages,
                              const mozilla::Maybe<Pages>& sourceMaxPages,
                              bool useHugeMemory);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmModule.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmModule.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmModule.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmModule.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -168,7 +168,8 @@
   // Install the data in the data structures. They will not be visible
   // until commitTier2().
 
-  if (!code().setTier2(std::move(code2), linkData2)) {
+  const CodeTier* borrowedTier2;
+  if (!code().setAndBorrowTier2(std::move(code2), linkData2, &borrowedTier2)) {
     return false;
   }
 
@@ -186,7 +187,7 @@
     const MetadataTier& metadataTier1 = metadata(Tier::Baseline);
 
     auto stubs1 = code().codeTier(Tier::Baseline).lazyStubs().lock();
-    auto stubs2 = code().codeTier(Tier::Optimized).lazyStubs().lock();
+    auto stubs2 = borrowedTier2->lazyStubs().lock();
 
     MOZ_ASSERT(stubs2->empty());
 
@@ -204,10 +205,8 @@
       }
     }
 
-    const CodeTier& tier2 = code().codeTier(Tier::Optimized);
-
     Maybe<size_t> stub2Index;
-    if (!stubs2->createTier2(funcExportIndices, tier2, &stub2Index)) {
+    if (!stubs2->createTier2(funcExportIndices, *borrowedTier2, &stub2Index)) {
       return false;
     }
 
@@ -424,7 +423,7 @@
   uint32_t cpu = ObservedCPUFeatures();
 
   if (!buildId->reserve(buildId->length() +
-                        12 /* "()" + 8 nibbles + "m[+-]" */)) {
+                        13 /* "()" + 8 nibbles + "m[+-][+-]" */)) {
     return false;
   }
 
@@ -436,7 +435,10 @@
   buildId->infallibleAppend(')');
 
   buildId->infallibleAppend('m');
-  buildId->infallibleAppend(wasm::IsHugeMemoryEnabled() ? '+' : '-');
+  buildId->infallibleAppend(wasm::IsHugeMemoryEnabled(IndexType::I32) ? '+'
+                                                                      : '-');
+  buildId->infallibleAppend(wasm::IsHugeMemoryEnabled(IndexType::I64) ? '+'
+                                                                      : '-');
 
   return true;
 }
@@ -769,7 +771,7 @@
     }
 
     if (!CheckLimits(cx, desc.initialPages(), desc.maximumPages(),
-                     /* defaultMax */ MaxMemoryPages(),
+                     /* defaultMax */ MaxMemoryPages(desc.indexType()),
                      /* actualLength */
                      memory->volatilePages(), memory->sourceMaxPages(),
                      metadata().isAsmJS(), "Memory")) {
@@ -782,19 +784,20 @@
   } else {
     MOZ_ASSERT(!metadata().isAsmJS());
 
-    if (desc.initialPages() > MaxMemoryPages()) {
+    if (desc.initialPages() > MaxMemoryPages(desc.indexType())) {
       JS_ReportErrorNumberUTF8(cx, GetErrorMessage, nullptr,
                                JSMSG_WASM_MEM_IMP_LIMIT);
       return false;
     }
 
     RootedArrayBufferObjectMaybeShared buffer(cx);
-    if (!CreateWasmBuffer32(cx, desc, &buffer)) {
+    if (!CreateWasmBuffer(cx, desc, &buffer)) {
       return false;
     }
 
     RootedObject proto(cx, &cx->global()->getPrototype(JSProto_WasmMemory));
-    memory.set(WasmMemoryObject::create(cx, buffer, proto));
+    memory.set(WasmMemoryObject::create(
+        cx, buffer, IsHugeMemoryEnabled(desc.indexType()), proto));
     if (!memory) {
       return false;
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmModuleTypes.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmModuleTypes.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmModuleTypes.h	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmModuleTypes.h	2021-10-20 19:28:30.000000000 +0000
@@ -517,6 +517,11 @@
     return limits.initial * PageSize;
   }
 
+  uint64_t initialLength64() const {
+    MOZ_ASSERT(indexType() == IndexType::I64);
+    return limits.initial * PageSize;
+  }
+
   MemoryDesc() = default;
   explicit MemoryDesc(Limits limits) : limits(limits) {}
 };
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmProcess.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmProcess.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmProcess.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmProcess.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -334,25 +334,50 @@
     size_t(1) << MinAddressBitsForHugeMemory;
 #endif
 
-ExclusiveData<ReadLockFlag> sHugeMemoryEnabled(mutexid::WasmHugeMemoryEnabled);
+ExclusiveData<ReadLockFlag> sHugeMemoryEnabled32(
+    mutexid::WasmHugeMemoryEnabled);
+ExclusiveData<ReadLockFlag> sHugeMemoryEnabled64(
+    mutexid::WasmHugeMemoryEnabled);
 
-static bool IsHugeMemoryEnabledHelper() {
-  auto state = sHugeMemoryEnabled.lock();
+static bool IsHugeMemoryEnabledHelper32() {
+  auto state = sHugeMemoryEnabled32.lock();
   return state->get();
 }
 
-bool wasm::IsHugeMemoryEnabled() {
-  static bool enabled = IsHugeMemoryEnabledHelper();
-  return enabled;
+static bool IsHugeMemoryEnabledHelper64() {
+  auto state = sHugeMemoryEnabled64.lock();
+  return state->get();
+}
+
+bool wasm::IsHugeMemoryEnabled(wasm::IndexType t) {
+  static bool enabled32 = IsHugeMemoryEnabledHelper32();
+  static bool enabled64 = IsHugeMemoryEnabledHelper64();
+  return t == IndexType::I32 ? enabled32 : enabled64;
 }
 
 bool wasm::DisableHugeMemory() {
-  auto state = sHugeMemoryEnabled.lock();
-  return state->set(false);
+  bool ok = true;
+  {
+    auto state = sHugeMemoryEnabled64.lock();
+    ok = ok && state->set(false);
+  }
+  {
+    auto state = sHugeMemoryEnabled32.lock();
+    ok = ok && state->set(false);
+  }
+  return ok;
 }
 
 void ConfigureHugeMemory() {
 #ifdef WASM_SUPPORTS_HUGE_MEMORY
+  bool ok = true;
+
+  {
+    // Currently no huge memory for IndexType::I64, so always set to false.
+    auto state = sHugeMemoryEnabled64.lock();
+    ok = ok && state->set(false);
+  }
+
   if (gc::SystemAddressBits() < MinAddressBitsForHugeMemory) {
     return;
   }
@@ -362,9 +387,12 @@
     return;
   }
 
-  auto state = sHugeMemoryEnabled.lock();
-  bool set = state->set(true);
-  MOZ_RELEASE_ASSERT(set);
+  {
+    auto state = sHugeMemoryEnabled32.lock();
+    ok = ok && state->set(true);
+  }
+
+  MOZ_RELEASE_ASSERT(ok);
 #endif
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmProcess.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmProcess.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmProcess.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmProcess.h	2021-10-20 19:28:31.000000000 +0000
@@ -21,6 +21,8 @@
 
 #include "mozilla/Atomics.h"
 
+#include "wasm/WasmMemory.h"
+
 namespace js {
 namespace wasm {
 
@@ -53,9 +55,11 @@
 
 void UnregisterCodeSegment(const CodeSegment* cs);
 
-// Whether this process is configured to use huge memory or not.
+// Whether this process is configured to use huge memory or not.  Note that this
+// is not precise enough to tell whether a particular memory uses huge memory,
+// there are additional conditions for that.
 
-bool IsHugeMemoryEnabled();
+bool IsHugeMemoryEnabled(IndexType t);
 
 [[nodiscard]] bool DisableHugeMemory();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmTlsData.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmTlsData.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmTlsData.h	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmTlsData.h	2021-10-20 19:28:30.000000000 +0000
@@ -102,6 +102,10 @@
   // baseline-compiled function.
   void** jumpTable;
 
+  // General scratch storage for the baseline compiler, which can't always use
+  // the stack for this.
+  uint32_t baselineScratch[2];
+
   // The globalArea must be the last field.  Globals for the module start here
   // and are inline in this structure.  16-byte alignment is required for SIMD
   // data.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmValidate.h firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmValidate.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/src/wasm/WasmValidate.h	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/src/wasm/WasmValidate.h	2021-10-20 19:28:30.000000000 +0000
@@ -28,6 +28,7 @@
 #include "wasm/WasmCompile.h"
 #include "wasm/WasmCompileArgs.h"
 #include "wasm/WasmModuleTypes.h"
+#include "wasm/WasmProcess.h"
 #include "wasm/WasmTypeDef.h"
 
 namespace js {
@@ -97,8 +98,8 @@
 #undef WASM_FEATURE
   Shareable sharedMemoryEnabled() const { return features.sharedMemory; }
   bool hugeMemoryEnabled() const {
-    return !isAsmJS() && features.hugeMemory && usesMemory() &&
-           memory->indexType() == IndexType::I32;
+    return !isAsmJS() && usesMemory() &&
+           IsHugeMemoryEnabled(memory->indexType());
   }
   bool simdWormholeEnabled() const { return features.simdWormhole; }
   bool intrinsicsEnabled() const { return features.intrinsics; }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/loader/ChromeScriptLoader.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/loader/ChromeScriptLoader.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/loader/ChromeScriptLoader.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/loader/ChromeScriptLoader.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -290,10 +290,13 @@
     : mParent(aParent),
       mStencil(aStencil),
       mURL(aOptions.filename()),
-      mHasReturnValue(!aOptions.noScriptRval),
-      mLazilyParse(!aOptions.forceFullParse()) {
+      mHasReturnValue(!aOptions.noScriptRval) {
   MOZ_ASSERT(aParent);
   MOZ_ASSERT(aStencil);
+#ifdef DEBUG
+  JS::InstantiateOptions options(aOptions);
+  options.assertDefault();
+#endif
 };
 
 void PrecompiledScript::ExecuteInGlobal(JSContext* aCx, HandleObject aGlobal,
@@ -303,13 +306,8 @@
     RootedObject targetObj(aCx, JS_FindCompilationScope(aCx, aGlobal));
     JSAutoRealm ar(aCx, targetObj);
 
-    CompileOptions options(aCx);
-    if (!mLazilyParse) {
-      // See AsyncScriptCompiler::Start.
-      options.setForceFullParse();
-    }
-    // mHasReturnValue (noScriptRval) is unused during instantiation.
-
+    // See assertion in constructor.
+    JS::InstantiateOptions options;
     Rooted<JSScript*> script(
         aCx, JS::InstantiateGlobalStencil(aCx, options, mStencil));
     if (!script) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/loader/mozJSComponentLoader.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/loader/mozJSComponentLoader.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/loader/mozJSComponentLoader.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/loader/mozJSComponentLoader.cpp	2021-10-20 19:28:29.000000000 +0000
@@ -819,7 +819,9 @@
     }
   }
 
-  RootedScript script(cx, JS::InstantiateGlobalStencil(cx, options, stencil));
+  JS::InstantiateOptions instantiateOptions(options);
+  RootedScript script(
+      cx, JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil));
   if (!script) {
     // Propagate the exception, if one exists. Also, don't leave the stale
     // exception on this context.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/loader/mozJSSubScriptLoader.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/loader/mozJSSubScriptLoader.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/loader/mozJSSubScriptLoader.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/loader/mozJSSubScriptLoader.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -131,8 +131,9 @@
                         JS::Stencil* stencil) {
   MOZ_ASSERT(!js::IsWrapper(targetObj));
 
-  JS::RootedScript script(cx,
-                          JS::InstantiateGlobalStencil(cx, options, stencil));
+  JS::InstantiateOptions instantiateOptions(options);
+  JS::RootedScript script(
+      cx, JS::InstantiateGlobalStencil(cx, instantiateOptions, stencil));
   if (!script) {
     return false;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/loader/PrecompiledScript.h firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/loader/PrecompiledScript.h
--- firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/loader/PrecompiledScript.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/loader/PrecompiledScript.h	2021-10-20 19:28:30.000000000 +0000
@@ -54,7 +54,6 @@
   RefPtr<JS::Stencil> mStencil;
   nsCString mURL;
   const bool mHasReturnValue;
-  const bool mLazilyParse;
 };
 
 }  // namespace dom
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/src/XPCJSContext.cpp firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/src/XPCJSContext.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/src/XPCJSContext.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/src/XPCJSContext.cpp	2021-10-20 19:28:29.000000000 +0000
@@ -588,7 +588,7 @@
   // Now is a good time to turn on profiling if it's pending.
   PROFILER_JS_INTERRUPT_CALLBACK();
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsDependentCString filename("unknown file");
     JS::AutoFilename scriptFilename;
     // Computing the line number can be very expensive (see bug 1330231 for
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/tests/chrome/test_bug996069.xhtml firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/tests/chrome/test_bug996069.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/js/xpconnect/tests/chrome/test_bug996069.xhtml	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/js/xpconnect/tests/chrome/test_bug996069.xhtml	2021-10-20 19:28:31.000000000 +0000
@@ -42,11 +42,11 @@
     };
 
     var newWin = Cu.evalInSandbox(
-      "window.open('http://example.org/chrome/js/xpconnect/tests/chrome/file_bug996069.html');",
+      "window.open('https://example.org/chrome/js/xpconnect/tests/chrome/file_bug996069.html');",
       sb);
   }
 
   ]]>
   </script>
-  <iframe id="ifr" onload="loaded();" type="content" src="http://example.org/chrome/js/xpconnect/tests/chrome/file_bug996069.html" />
+  <iframe id="ifr" onload="loaded();" type="content" src="https://example.org/chrome/js/xpconnect/tests/chrome/file_bug996069.html" />
 </window>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/be/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/be/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/be/browser/browser/appmenu.ftl	2021-10-17 14:44:43.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/be/browser/browser/appmenu.ftl	2021-10-20 19:29:49.000000000 +0000
@@ -118,6 +118,12 @@
 profiler-popup-button-idle =
     .label = Прафайлер
     .tooltiptext = Запісаць профіль прадукцыйнасці
+profiler-popup-button-recording =
+    .label = Прафайлер
+    .tooltiptext = Прафайлер запісвае профіль
+profiler-popup-button-capturing =
+    .label = Прафайлер
+    .tooltiptext = Прафайлер захоплівае профіль
 profiler-popup-title =
     .value = { -profiler-brand-name }
 profiler-popup-reveal-description-button =
@@ -168,6 +174,21 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
+profiler-popup-presets-web-developer-description = Рэкамендаваны прадусталяваны варыянт для адладкі большасці вэб-прыкладанняў, з невялікімі выдаткамі.
+profiler-popup-presets-web-developer-label =
+    .label = Распрацоўшчык Сеціва
+profiler-popup-presets-firefox-platform-description = Рэкамендаваныя папярэднія налады для ўнутранай адладкі платформы Firefox.
+profiler-popup-presets-firefox-platform-label =
+    .label = Платформа Firefox
+profiler-popup-presets-firefox-front-end-description = Рэкамендаваныя папярэднія налады для ўнутранай адладкі кліенцкай часткі Firefox.
+profiler-popup-presets-firefox-front-end-label =
+    .label = Кліенцкая частка Firefox
+profiler-popup-presets-firefox-graphics-label =
+    .label = Графіка Firefox
+profiler-popup-presets-media-label =
+    .label = Медыя
+profiler-popup-presets-custom-label =
+    .label = Адмысловыя
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/be/browser/browser/browser.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/be/browser/browser/browser.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/be/browser/browser/browser.ftl	2021-10-17 14:44:43.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/be/browser/browser/browser.ftl	2021-10-20 19:29:49.000000000 +0000
@@ -783,3 +783,9 @@
 tabs-toolbar-list-all-tabs =
     .label = Пералічыць усе карткі
     .tooltiptext = Пералічыць усе карткі
+
+## Infobar shown at startup to suggest session-restore
+
+# <img data-l10n-name="icon"/> will be replaced by the application menu icon
+restore-session-startup-suggestion-message = <strong>Адкрыць папярэднія карткі?</strong> Вы можаце аднавіць папярэдні сеанс з меню <img data-l10n-name="icon"/> праграмы { -brand-short-name }, у раздзеле "Гісторыя".
+restore-session-startup-suggestion-button = Паказаць мне як
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/be/browser/browser/newtab/newtab.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/be/browser/browser/newtab/newtab.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/be/browser/browser/newtab/newtab.ftl	2021-10-17 14:44:43.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/be/browser/browser/newtab/newtab.ftl	2021-10-20 19:29:49.000000000 +0000
@@ -226,10 +226,25 @@
 
 # This is shown at the bottom of the trending stories section and precedes a list of links to popular topics.
 newtab-pocket-read-more = Папулярныя тэмы:
+newtab-pocket-new-topics-title = Хочаце яшчэ больш гісторый? Глядзіце гэтыя папулярныя тэмы ад { -pocket-brand-name }
 newtab-pocket-more-recommendations = Больш рэкамендацый
 newtab-pocket-learn-more = Падрабязней
 newtab-pocket-cta-button = Атрымаць { -pocket-brand-name }
 newtab-pocket-cta-text = Захоўвайце ўлюбёныя гісторыі ў { -pocket-brand-name }, і сілкуйце свой розум добрай чытанкай.
+newtab-pocket-pocket-firefox-family = { -pocket-brand-name } уваходзіць у сямейства { -brand-product-name }
+# A save to Pocket button that shows over the card thumbnail on hover.
+newtab-pocket-save-to-pocket = Захаваць у { -pocket-brand-name }
+newtab-pocket-saved-to-pocket = Захавана ў { -pocket-brand-name }
+# This is a button shown at the bottom of the Pocket section that loads more stories when clicked.
+newtab-pocket-load-more-stories-button = Загрузіць больш гісторый
+
+## Pocket Final Card Section.
+## This is for the final card in the Pocket grid.
+
+newtab-pocket-last-card-title = Вы ўсё прачыталі!
+newtab-pocket-last-card-desc = Завітайце сюды пазней, каб пабачыць больш.
+newtab-pocket-last-card-image =
+    .alt = Вы ўсё прачыталі
 
 ## Error Fallback Content.
 ## This message and suggested action link are shown in each section of UI that fails to render.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/be/browser/browser/places.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/be/browser/browser/places.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/be/browser/browser/places.ftl	2021-10-17 14:44:43.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/be/browser/browser/places.ftl	2021-10-20 19:29:49.000000000 +0000
@@ -113,6 +113,9 @@
            *[many] Выдаліць закладкі
         }
     .accesskey = В
+places-show-in-folder =
+    .label = Паказаць у папцы
+    .accesskey = а
 # Variables:
 # $count (number) - The number of elements being selected for removal.
 places-delete-bookmark =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/be/toolkit/toolkit/about/aboutAddons.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/be/toolkit/toolkit/about/aboutAddons.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/be/toolkit/toolkit/about/aboutAddons.ftl	2021-10-17 14:44:43.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/be/toolkit/toolkit/about/aboutAddons.ftl	2021-10-20 19:29:50.000000000 +0000
@@ -3,109 +3,78 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 addons-page-title = Менеджар дадаткаў
-
 search-header =
     .placeholder = Пошук на addons.mozilla.org
     .searchbuttonlabel = Пошук
-
 search-header-shortcut =
     .key = f
-
 list-empty-get-extensions-message = Атрымлівайце пашырэнні і тэмы з <a data-l10n-name="get-extensions">{ $domain }</a>
-
 list-empty-installed =
     .value = У вас няма ніводнага ўсталяванага дадатку гэтага тыпу
-
 list-empty-available-updates =
     .value = Абнаўленні не знойдзеныя
-
 list-empty-recent-updates =
     .value = Нядаўна вы не абнаўлялі ніякіх дадаткаў
-
 list-empty-find-updates =
     .label = Знайсці абнаўленні
-
 list-empty-button =
     .label = Падрабязней пра дадаткі
-
 help-button = Падтрымка дадаткаў
 sidebar-help-button-title =
     .title = Падтрымка дадаткаў
-
 addons-settings-button = Налады { -brand-short-name }
 sidebar-settings-button-title =
     .title = Налады { -brand-short-name }
-
 show-unsigned-extensions-button =
     .label = Некаторыя пашырэнні не могуць быць правераны
-
 show-all-extensions-button =
     .label = Паказаць усе пашырэнні
-
 detail-version =
     .label = Версія
-
 detail-last-updated =
     .label = Апошняе абнаўленне
-
 detail-contributions-description = Распрацоўца гэтага дадатка просіць падтрымаць яго распрацоўку невялікім ахвяраваннем.
-
 detail-contributions-button = Зрабіць унёсак
     .title = Зрабіць унёсак у распрацоўку гэтага дадатку
     .accesskey = с
-
 detail-update-type =
     .value = Аўтаматычныя абнаўленні
-
 detail-update-default =
     .label = Прадвызначана
     .tooltiptext = Самастойна ўсталёўваць абнаўленні, калі гэта прадвызначана
-
 detail-update-automatic =
     .label = Укл.
     .tooltiptext = Аўтаматычна ўсталёўваць абнаўленні
-
 detail-update-manual =
     .label = Выкл.
     .tooltiptext = Не ўсталёўваць абнаўленні аўтаматычна
-
 # Used as a description for the option to allow or block an add-on in private windows.
 detail-private-browsing-label = Задзейнічаць у прыватных вокнах
-
 # Some add-ons may elect to not run in private windows by setting incognito: not_allowed in the manifest.  This
 # cannot be overridden by the user.
 detail-private-disallowed-label = Не дазволена ў прыватных вокнах
 detail-private-disallowed-description2 = Гэта пашырэнне не працуе ў час прыватнага аглядання. <a data-l10n-name="learn-more">Падрабязней</a>
-
 # Some special add-ons are privileged, run in private windows automatically, and this permission can't be revoked
 detail-private-required-label = Патрабуе доступ да прыватных акон
 detail-private-required-description2 = Гэта пашырэнне мае доступ да вашай дзейнасці ў сеціве ў час прыватнага аглядання. <a data-l10n-name="learn-more">Падрабязней</a>
-
 detail-private-browsing-on =
     .label = Дазволіць
     .tooltiptext = Уключаць у рэжыме прыватнага аглядання
-
 detail-private-browsing-off =
     .label = Не дазваляць
     .tooltiptext = Адключаць у рэжыме прыватнага аглядання
-
 detail-home =
     .label = Хатняя старонка
-
 detail-home-value =
     .value = { detail-home.label }
-
 detail-repository =
     .label = Профіль дадатка
-
 detail-repository-value =
     .value = { detail-repository.label }
-
 detail-check-for-updates =
     .label = Знайсці абнаўленні
     .accesskey = н
     .tooltiptext = Праверыць, ці існуюць абнаўленні гэтага дадатку
-
 detail-show-preferences =
     .label =
         { PLATFORM() ->
@@ -122,38 +91,26 @@
             [windows] Змяненне налад гэтага дадатка
            *[other] Змяненне налад гэтага дадатка
         }
-
 detail-rating =
     .value = Ацэнка
-
 addon-restart-now =
     .label = Перазапусціць зараз
-
 disabled-unsigned-heading =
     .value = Некаторыя дадаткі былі адключаны
-
 disabled-unsigned-description = Праца наступных дадаткаў у { -brand-short-name } не была праверана. Вы можаце <label data-l10n-name="find-addons">знайсці ім замену</label> або папрасіць распрацоўшчыка правесці іх праверку.
-
 disabled-unsigned-learn-more = Даведайцеся больш пра нашы намаганні ў забеспячэнні вашай бяспекі ў інтэрнэце.
-
 disabled-unsigned-devinfo = Распрацоўшчыкі, зацікаўленыя ў праверцы сваіх дадаткаў, могуць прачытаць наш <label data-l10n-name="learn-more">дапаможнік</label>.
-
 plugin-deprecation-description = Нешта адсутнічае? { -brand-short-name } больш не падтрымлівае некаторыя плагіны. <label data-l10n-name="learn-more">Падрабязней.</label>
-
 legacy-warning-show-legacy = Паказаць састарэлыя пашырэнні
-
 legacy-extensions =
     .value = Састарэлыя пашырэнні
-
 legacy-extensions-description = Гэтыя пашырэнні не адпавядаюць бягучым стандартам { -brand-short-name }, таму яны былі выключаны. <label data-l10n-name="legacy-learn-more">Даведацца аб зменах у дадатках</label>
-
 private-browsing-description2 =
     { -brand-short-name } змяняе парадак працы пашырэнняў у прыватным агляданні. Усе новыя пашырэнні, якія вы дадаяце да
     { -brand-short-name }, тыпова не будуць дзейнічаць у прыватных вокнах. Пакуль вы не выставіце дазвол у наладах,
     пашырэнне не будзе працаваць у час прыватнага аглядання, і не будзе мець доступу да вашай сеціўнай
     актыўнасці ў гэтым рэжыме. Мы зрабілі гэта для аховы вашай прыватнасці.
     <label data-l10n-name="private-browsing-learn-more">Даведайцеся, як кіраваць наладамі пашырэння.</label>
-
 addon-category-discover = Рэкамендацыі
 addon-category-discover-title =
     .title = Рэкамендацыі
@@ -189,7 +146,6 @@
 extensions-warning-update-security-button = Уключыць
     .title = Уключыць праверку бяспечнасці абнаўленняў дадаткаў
 
-
 ## Strings connected to add-on updates
 
 addon-updates-check-for-updates = Праверыць наяўнасць абнаўленняў
@@ -235,44 +191,35 @@
 # This is displayed in the page options menu
 addon-manage-extensions-shortcuts = Кіраваць спалучэннямі клавіш пашырэнняў
     .accesskey = ы
-
 shortcuts-no-addons = У вас не ўключана ніводнага пашырэння.
 shortcuts-no-commands = Наступныя пашырэнні не маюць спалучэнняў клавіш:
 shortcuts-input =
     .placeholder = Увядзіце спалучэнне клавіш
-
 shortcuts-browserAction2 = Актываваць кнопку на паліцы прылад
 shortcuts-pageAction = Актываваць дзеянні старонкі
 shortcuts-sidebarAction = Паказаць/схаваць бакавую панэль
-
 shortcuts-modifier-mac = Улучыце Ctrl, Alt або ⌘
 shortcuts-modifier-other = Улучыце Ctrl або Alt
 shortcuts-invalid = Недапушчальная камбінацыя
 shortcuts-letter = Увядзіце літару
 shortcuts-system = Нельга перавызначыць спалучэнне клавіш { -brand-short-name }
-
 # String displayed in warning label when there is a duplicate shortcut
 shortcuts-duplicate = Дублікат спалучэння клавіш
-
 # String displayed when a keyboard shortcut is already assigned to more than one add-on
 # Variables:
 #   $shortcut (string) - Shortcut string for the add-on
 shortcuts-duplicate-warning-message = { $shortcut } выкарыстоўваецца як спалучэнне клавіш больш чым у адным выпадку. Дубліраваныя спалучэнні могуць выклікаць нечаканыя паводзіны.
-
 # String displayed when a keyboard shortcut is already used by another add-on
 # Variables:
 #   $addon (string) - Name of the add-on
 shortcuts-exists = Ужо выкарыстоўваецца дадаткам { $addon }
-
 shortcuts-card-expand-button =
     { $numberToShow ->
         [one] Паказаць яшчэ { $numberToShow }
         [few] Паказаць яшчэ { $numberToShow }
        *[many] Паказаць яшчэ { $numberToShow }
     }
-
 shortcuts-card-collapse-button = Паказаць менш
-
 header-back-button =
     .title = Вярнуцца
 
@@ -287,15 +234,12 @@
     невялікія праграмы часта распрацаваны трэцім бокам. Гэты набор { -brand-product-name }
     <a data-l10n-name="learn-more-trigger">рэкамендуе </a> для выключнай
     бяспекі, прадукцыйнасці і функцыянальнасці.
-
 # Notice to make user aware that the recommendations are personalized.
 discopane-notice-recommendations =
     Некаторыя з гэтых рэкамендацый персаніфікаваныя. Яны заснаваны на іншых
     пашырэннях, якія вы ўсталявалі, перавагах профілю і статыстыцы выкарыстання.
 discopane-notice-learn-more = Даведацца больш
-
 privacy-policy = Палітыка прыватнасці
-
 # Refers to the author of an add-on, shown below the name of the add-on.
 # Variables:
 #   $author (string) - The name of the add-on developer.
@@ -310,7 +254,7 @@
 # the detailed add-on view is opened, from where the add-on can be managed.
 manage-addon-button = Кіраванне
 find-more-addons = Знайсці больш дадаткаў
-
+find-more-themes = Знайсці іншыя тэмы
 # This is a label for the button to open the "more options" menu, it is only
 # used for screen readers.
 addon-options-button =
@@ -336,46 +280,37 @@
 details-addon-button = Падрабязнасці
 release-notes-addon-button = Заўвагі да выпуску
 permissions-addon-button = Правы доступу
-
 extension-enabled-heading = Уключана
 extension-disabled-heading = Адключана
-
 theme-enabled-heading = Уключана
 theme-disabled-heading = Выключана
-
+theme-monochromatic-heading = Расфарбоўкі
+theme-monochromatic-subheading = Яркія новыя колеры ад { -brand-product-name }. Даступныя абмежаваны час.
 plugin-enabled-heading = Уключана
 plugin-disabled-heading = Адключана
-
 dictionary-enabled-heading = Уключана
 dictionary-disabled-heading = Адключана
-
 locale-enabled-heading = Уключана
 locale-disabled-heading = Выключана
-
 always-activate-button = Заўсёды задейнічаць
 never-activate-button = Ніколі не задзейнічаць
-
 addon-detail-author-label = Аўтар
 addon-detail-version-label = Версія
 addon-detail-last-updated-label = Апошняе абнаўленне
 addon-detail-homepage-label = Хатняя старонка
 addon-detail-rating-label = Ацэнка
-
 # Message for add-ons with a staged pending update.
 install-postponed-message = Гэта пашырэнне будзе абноўлена пасля перазапуску { -brand-short-name }.
 install-postponed-button = Абнавіць зараз
-
 # The average rating that the add-on has received.
 # Variables:
 #   $rating (number) - A number between 0 and 5. The translation should show at most one digit after the comma.
 five-star-rating =
     .title = Ацэнена на { NUMBER($rating, maximumFractionDigits: 1) } з 5
-
 # This string is used to show that an add-on is disabled.
 # Variables:
 #   $name (string) - The name of the add-on
 addon-name-disabled = { $name } (адключана)
-
 # The number of reviews that an add-on has received on AMO.
 # Variables:
 #   $numberOfReviews (number) - The number of reviews received
@@ -392,14 +327,12 @@
 #   $addon (string) - Name of the add-on
 pending-uninstall-description = <span data-l10n-name="addon-name">{ $addon }</span> быў выдалены.
 pending-uninstall-undo-button = Адмяніць
-
 addon-detail-updates-label = Дазволіць аўтаматычныя абнаўленні
 addon-detail-updates-radio-default = Прадвызначана
 addon-detail-updates-radio-on = Укл.
 addon-detail-updates-radio-off = Выкл.
 addon-detail-update-check-label = Праверыць наяўнасць абнаўленняў
 install-update-button = Абнавіць
-
 # This is the tooltip text for the private browsing badge in about:addons. The
 # badge is the private browsing icon included next to the extension's name.
 addon-badge-private-browsing-allowed2 =
@@ -415,7 +348,6 @@
 addon-badge-recommended2 =
     .title = { -brand-product-name } рэкамендуе толькі пашырэнні, якія адпавядаюць нашым стандартам бяспекі і прадукцыйнасці
     .aria-label = { addon-badge-recommended2.title }
-
 # We hard code "Mozilla" in the string below because the extensions are built
 # by Mozilla and we don't want forks to display "by Fork".
 addon-badge-line3 =
@@ -429,19 +361,14 @@
 
 available-updates-heading = Даступныя абнаўленні
 recent-updates-heading = Нядаўнія абнаўленні
-
 release-notes-loading = Загрузка…
 release-notes-error = Выбачайце, здарылася памылка пры загрузцы заўваг да выпуску.
-
 addon-permissions-empty = Гэта пашырэнне не патрабуе якіх-небудзь дазволаў
-
 addon-permissions-required = Неабходныя дазволы для асноўнай функцыянальнасці:
 addon-permissions-optional = Неабавязковыя дазволы для дадатковай функцыянальнасці:
 addon-permissions-learnmore = Даведацца больш пра дазволы
-
 recommended-extensions-heading = Рэкамендаваныя пашырэнні
 recommended-themes-heading = Рэкамендаваныя тэмы
-
 # A recommendation for the Firefox Color theme shown at the bottom of the theme
 # list view. The "Firefox Color" name itself should not be translated.
 recommended-theme-1 = Адчуваеце натхненне? <a data-l10n-name="link">Стварыце ўласную тэму з дапамогай Firefox Color.</a>
@@ -456,10 +383,8 @@
 updates-heading = Кіруйце сваімі абнаўленнямі
 discover-heading = Персаналізуйце свой { -brand-short-name }
 shortcuts-heading = Кіраваць спалучэннямі клавіш пашырэнняў
-
 default-heading-search-label = Знайсці больш дадаткаў
 addons-heading-search-input =
     .placeholder = Пошук на addons.mozilla.org
-
 addon-page-options-button =
     .title = Прылады для ўсіх дадаткаў
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/aboutUnloads.ftl	2021-10-17 14:45:15.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/aboutUnloads.ftl	2021-10-20 19:30:51.000000000 +0000
@@ -21,6 +21,11 @@
     indeholder fanebladets øverste frame, og med <em>kursiv</em>, når 
     processen deles mellem forskellige faneblade. Du kan udløse nedlukning
     af faneblade manuelt ved at klikke på knappen <em>Nedluk</em> nedenfor.
+# The link points to a Firefox documentation page, only available in English,
+# with title "Tab Unloading"
+about-unloads-learn-more =
+    <a data-l10n-name="doc-link">Klik her</a> for at læse mere om
+    funktionen og denne side.
 about-unloads-last-updated = Senest opdateret: { DATETIME($date, year: "numeric", month: "numeric", day: "numeric", hour: "numeric", minute: "numeric", second: "numeric", hour12: "false") }
 about-unloads-button-unload = Nedluk
     .title = Nedluk faneblad med den højeste prioritet
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/appmenu.ftl	2021-10-17 14:45:15.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/appmenu.ftl	2021-10-20 19:30:51.000000000 +0000
@@ -118,6 +118,12 @@
 profiler-popup-button-idle =
     .label = Profilering
     .tooltiptext = Optag en ydelses-profil
+profiler-popup-button-recording =
+    .label = Profilering
+    .tooltiptext = Profilerings-værktøjet er ved at optage en profil
+profiler-popup-button-capturing =
+    .label = Profilering
+    .tooltiptext = Profilerings-værktøjet er ved at indfange en profil
 profiler-popup-title =
     .value = { -profiler-brand-name }
 profiler-popup-reveal-description-button =
@@ -168,6 +174,21 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
+profiler-popup-presets-web-developer-description = Anbefalet forhåndsindstilling med lavt overhead for generel debugging af web-apps.
+profiler-popup-presets-firefox-platform-description = Anbefalet forhåndsindstilling for intern debugging af Firefox-platformen.
+profiler-popup-presets-firefox-platform-label =
+    .label = Firefox-platformen
+profiler-popup-presets-firefox-front-end-description = Anbefalet forhåndsindstilling for intern debugging af Firefox' frontend.
+profiler-popup-presets-firefox-front-end-label =
+    .label = Firefox frontend
+profiler-popup-presets-firefox-graphics-description = Anbefalet forhåndsindstilling for undersøgelse af grafik-ydelse i Firefox.
+profiler-popup-presets-firefox-graphics-label =
+    .label = Firefox-grafik
+profiler-popup-presets-media-description = Anbefalet forhåndsindstilling for at diagnosticere problemer med lyd og video.
+profiler-popup-presets-media-label =
+    .label = Medieindhold
+profiler-popup-presets-custom-label =
+    .label = Tilpasset
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/browser.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/browser.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/browser.ftl	2021-10-17 14:45:15.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/browser.ftl	2021-10-20 19:30:51.000000000 +0000
@@ -782,4 +782,6 @@
 
 ## Infobar shown at startup to suggest session-restore
 
+# <img data-l10n-name="icon"/> will be replaced by the application menu icon
+restore-session-startup-suggestion-message = <strong>Åbn tidligere faneblade?</strong> Du kan gendanne din tidligere session fra programmenuen i { -brand-short-name } <img data-l10n-name="icon"/> under Historik.
 restore-session-startup-suggestion-button = Vis mig hvordan
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/newtab/onboarding.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/newtab/onboarding.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/newtab/onboarding.ftl	2021-10-17 14:45:15.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/newtab/onboarding.ftl	2021-10-20 19:30:51.000000000 +0000
@@ -149,7 +149,18 @@
 mr1-onboarding-import-primary-button-label-no-attribution = Importer fra tidligere browser
 mr1-onboarding-import-secondary-button-label = Ikke nu
 mr2-onboarding-colorway-header = Nye farver
+mr2-onboarding-colorway-subtitle = Dynamiske nye farvekombinationer. Findes kun i begrænset tid.
+mr2-onboarding-colorway-primary-button-label = Gem farvekombination
 mr2-onboarding-colorway-secondary-button-label = Ikke nu
+mr2-onboarding-colorway-label-soft = Blød
+mr2-onboarding-colorway-label-balanced = Balanceret
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+mr2-onboarding-colorway-label-bold = Dristig
+# Automatic theme uses operating system color settings
+mr2-onboarding-theme-label-auto = Automatisk
+# This string will be used for Default theme
+mr2-onboarding-theme-label-default = Standard
 mr1-onboarding-theme-header = Du bestemmer
 mr1-onboarding-theme-subtitle = Gør{ -brand-short-name } mere personlig med et tema.
 mr1-onboarding-theme-primary-button-label = Gem tema
@@ -255,6 +266,33 @@
     .aria-description =
         Brug et dynamisk og farverigt tema til knapper, 
         menuer og vinduer.
+# Tooltip displayed on hover of non-default colorway theme
+# variations e.g. soft, balanced, bold
+mr2-onboarding-theme-tooltip =
+    .title = Brug denne farvekombination.
+# Selector description for non-default colorway theme
+# variations e.g. soft, balanced, bold
+mr2-onboarding-theme-description =
+    .aria-description = Brug denne farvekombination.
+# Tooltip displayed on hover of colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-tooltip =
+    .title = Udforsk { $colorwayName }-farvekombinationer.
+# Selector description for colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-description =
+    .aria-description = Udforsk { $colorwayName }-farvekombinationer.
+# Tooltip displayed on hover of default themes
+mr2-onboarding-default-theme-tooltip =
+    .title = Udforsk standard-temaer.
+# Selector description for default themes
+mr2-onboarding-default-theme-description =
+    .aria-description = Udforsk standard-temaer.
 
 ## Strings for Thank You page
 
+mr2-onboarding-thank-you-header = Tak for at du valgte os
+mr2-onboarding-thank-you-text = { -brand-short-name } er en uafhængig browser støttet af en nonprofit-organisation. Sammen sørger vi for, at internettet er sikrere, sundere og respekterer folks privatliv.
+mr2-onboarding-start-browsing-button-label = Afslut rundvisningen
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/screenshots.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/screenshots.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/screenshots.ftl	2021-10-17 14:45:15.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/screenshots.ftl	2021-10-20 19:30:51.000000000 +0000
@@ -5,7 +5,8 @@
 screenshot-toolbarbutton =
     .label = Skærmbillede
     .tooltiptext = Tag et skærmbillede
-
+screenshot-shortcut =
+    .key = S
 screenshots-instructions = Træk eller klik på siden for at vælge et område. Tryk på ESC for at fortryde.
 screenshots-cancel-button = Fortryd
 screenshots-save-visible-button = Gem synligt område
@@ -14,7 +15,6 @@
 screenshots-download-button-tooltip = Hent skærmbillede
 screenshots-copy-button = Kopier
 screenshots-copy-button-tooltip = Kopier skærmbillede til udklipsholder
-
 screenshots-meta-key =
     { PLATFORM() ->
         [macos] ⌘
@@ -22,25 +22,17 @@
     }
 screenshots-notification-link-copied-title = Link kopieret
 screenshots-notification-link-copied-details = Linket til dit skærmbillede er blevet gemt i udklipsholderen. Tryk på { screenshots-meta-key }-V for at sætte ind.
-
 screenshots-notification-image-copied-title = Skærmbillede kopieret
 screenshots-notification-image-copied-details = Dit skærmbillede er blevet kopieret til udklipsholderen. Tryk { screenshots-meta-key }-V for at indsætte.
-
 screenshots-request-error-title = Ude af funktion
 screenshots-request-error-details = Vi kunne desværre ikke gemme dit skærmbillede. Prøv igen senere.
-
 screenshots-connection-error-title = Vi kan ikke oprette forbindelse til dine skærmbilleder.
 screenshots-connection-error-details = Kontroller din internet-forbindelse. Hvis du ikke kan oprette forbindelse til internettet, kan der være et midlertidigt teknisk problem med { -screenshots-brand-name }.
-
 screenshots-login-error-details = Vi kunne ikke gemme dit skærmbillede, fordi der er et teknisk problem med { -screenshots-brand-name }. Prøv igen senere.
-
 screenshots-unshootable-page-error-title = Vi kan ikke tage et skærmbillede af denne side.
 screenshots-unshootable-page-error-details = Dette er ikke en almindelig webside, så du kan ikke tage skærmbilleder af den.
-
 screenshots-empty-selection-error-title = Din markering er for lille
-
 screenshots-private-window-error-title = { -screenshots-brand-name } er deaktiveret i privat browsing-tilstand
 screenshots-private-window-error-details = Vi beklager ulejligheden. Vi arbejder på at få funktionen til at virke i fremtidige udgivelser.
-
 screenshots-generic-error-title = Hov! Noget gik helt galt med { -screenshots-brand-name }.
 screenshots-generic-error-details = Vi er ikke sikre på, hvad der lige skete. Vil du prøve igen - eller vil du tage et skærmbillede af en anden side?
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/upgradeDialog.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/upgradeDialog.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/browser/browser/upgradeDialog.ftl	2021-10-17 14:45:15.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/browser/browser/upgradeDialog.ftl	2021-10-20 19:30:51.000000000 +0000
@@ -64,6 +64,16 @@
 upgrade-dialog-theme-title-2 = Start på en frisk med et nyt tema
 upgrade-dialog-theme-system = Systemets tema
     .title = Følg operativsystems tema til knapper, menuer og vinduer
+
+## Start screen
+
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-start-title = Nye farver
+upgrade-dialog-start-secondary-button = Ikke nu
+
+## Colorway screen
+
+upgrade-dialog-colorway-default-theme = Standard
 upgrade-dialog-theme-light = Lyst
     .title = Brug et lyst tema til knapper, menuer og vinduer
 upgrade-dialog-theme-dark = Mørkt
@@ -74,3 +84,6 @@
     .title = Brug samme tema fra før du opdaterede { -brand-short-name }
 upgrade-dialog-theme-primary-button = Gem tema
 upgrade-dialog-theme-secondary-button = Ikke nu
+
+## Thank you screen
+
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/devtools/client/components.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/devtools/client/components.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/devtools/client/components.properties	2021-10-17 14:45:15.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/devtools/client/components.properties	2021-10-20 19:30:51.000000000 +0000
@@ -9,7 +9,7 @@
 # a frame, we use this string instead.
 frame.unknownSource=(ukendt)
 
-# LOCALIZATION NOTE (viewsourceindebugger): The label for the tooltip when hovering over
+# LOCALIZATION NOTE (frame.viewsourceindebugger): The label for the tooltip when hovering over
 # a source link that links to the debugger.
 # %S represents the URL to match in the debugger.
 frame.viewsourceindebugger=Vis kildekode i debuggeren → %S
@@ -22,3 +22,14 @@
 # LOCALIZATION NOTE (notificationBox.closeTooltip): The content of a tooltip that
 # appears when hovering over the close button in a notification box.
 notificationBox.closeTooltip=Luk denne besked
+
+# LOCALIZATION NOTE (appErrorBoundary.description): This is the information displayed
+# once the panel errors.
+# %S represents the name of panel which has the crash.
+
+# LOCALIZATION NOTE (appErrorBoundary.fileBugButton): This is the text that appears in
+# the button to visit the bug filing link.
+appErrorBoundary.fileBugButton=Indsend fejlrapport
+
+# LOCALIZATION NOTE (appErrorBoundary.reloadPanelInfo): This is the text that appears
+# after the panel errors to instruct the user to reload the panel.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/devtools/client/netmonitor.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/devtools/client/netmonitor.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/devtools/client/netmonitor.properties	2021-10-17 14:45:15.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/devtools/client/netmonitor.properties	2021-10-20 19:30:51.000000000 +0000
@@ -1079,6 +1079,14 @@
 # from the currently displayed request
 netmonitor.headers.raw=Rå
 
+# LOCALIZATION NOTE (netmonitor.headers.blockedByCORS): This is the message displayed
+# in the notification shown when a request has been blocked by CORS with a more
+# specific reason shown in the parenthesis
+
+#LOCALIZATION NOTE (netmonitor.headers.blockedByCORSTooltip): This is the tooltip
+# displayed on the learnmore link of the blocked by CORS notification.
+netmonitor.headers.blockedByCORSTooltip=Læs mere om denne CORS-fejl
+
 # LOCALIZATION NOTE (netmonitor.response.name): This is the label displayed
 # in the network details response tab identifying an image's file name or font face's name.
 netmonitor.response.name=Navn:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/toolkit/toolkit/about/aboutAddons.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/toolkit/toolkit/about/aboutAddons.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/da/toolkit/toolkit/about/aboutAddons.ftl	2021-10-17 14:45:15.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/da/toolkit/toolkit/about/aboutAddons.ftl	2021-10-20 19:30:51.000000000 +0000
@@ -3,109 +3,78 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 addons-page-title = Tilføjelser
-
 search-header =
     .placeholder = Søg på addons.mozilla.org
     .searchbuttonlabel = Søg
-
 search-header-shortcut =
     .key = f
-
 list-empty-get-extensions-message = Hent udvidelser og temaer på <a data-l10n-name="get-extensions">{ $domain }</a>
-
 list-empty-installed =
     .value = Du har ikke nogen tilføjelser af denne type installeret
-
 list-empty-available-updates =
     .value = Ingen opdateringer fundet
-
 list-empty-recent-updates =
     .value = Du har ikke opdateret nogen tilføjelser for nyligt
-
 list-empty-find-updates =
     .label = Søg efter opdateringer
-
 list-empty-button =
     .label = Lær mere om tilføjelser
-
 help-button = Hjælp til tilføjelser
 sidebar-help-button-title =
     .title = Hjælp til tilføjelser
-
 addons-settings-button = { -brand-short-name }-indstillinger
 sidebar-settings-button-title =
     .title = { -brand-short-name }-indstillinger
-
 show-unsigned-extensions-button =
     .label = Nogle udvidelser kunne ikke bekræftes
-
 show-all-extensions-button =
     .label = Vis alle udvidelser
-
 detail-version =
     .label = Version
-
 detail-last-updated =
     .label = Senest opdateret
-
 detail-contributions-description = Udvikleren af denne tilføjelse forespøger om du vil hjælpe dens videre udvikling ved at bidrage med en lille donation.
-
 detail-contributions-button = Bidrag
     .title = Bidrag til udviklingen af denne tilføjelse
     .accesskey = B
-
 detail-update-type =
     .value = Automatiske opdateringer
-
 detail-update-default =
     .label = Standard
     .tooltiptext = Installer kun opdateringer automatisk hvis det er standardindstillingen
-
 detail-update-automatic =
     .label = Til
     .tooltiptext = Installer opdateringer automatisk
-
 detail-update-manual =
     .label = Fra
     .tooltiptext = Installer ikke opdateringer automatisk
-
 # Used as a description for the option to allow or block an add-on in private windows.
 detail-private-browsing-label = Anvend i private vinduer
-
 # Some add-ons may elect to not run in private windows by setting incognito: not_allowed in the manifest.  This
 # cannot be overridden by the user.
 detail-private-disallowed-label = Virker ikke i privat browsing
 detail-private-disallowed-description2 = Denne udvidelse virker ikke under privat browsing. <a data-l10n-name="learn-more">Læs mere</a>
-
 # Some special add-ons are privileged, run in private windows automatically, and this permission can't be revoked
 detail-private-required-label = Har altid adgang til private vinduer
 detail-private-required-description2 = Denne udvidelse har adgang til dine aktiviteter på nettet, når du bruger privat browsing. <a data-l10n-name="learn-more">Læs mere</a>
-
 detail-private-browsing-on =
     .label = Tillad
     .tooltiptext = Aktivér i private vinduer
-
 detail-private-browsing-off =
     .label = Tillad ikke
     .tooltiptext = Deaktiver i private vinduer
-
 detail-home =
     .label = Webside
-
 detail-home-value =
     .value = { detail-home.label }
-
 detail-repository =
     .label = Profil af tilføjelse
-
 detail-repository-value =
     .value = { detail-repository.label }
-
 detail-check-for-updates =
     .label = Søg efter opdateringer
     .accesskey = T
     .tooltiptext = Søg efter tilgængelige opdateringer til denne tilføjelse
-
 detail-show-preferences =
     .label =
         { PLATFORM() ->
@@ -122,42 +91,30 @@
             [windows] Rediger indstillinger for denne tilføjelse
            *[other] Rediger indstillinger for denne tilføjelse
         }
-
 detail-rating =
     .value = Vurdering
-
 addon-restart-now =
     .label = Genstart nu
-
 disabled-unsigned-heading =
     .value = Nogle tilføjelser er blevet deaktiveret
-
 disabled-unsigned-description =
     De følgende tilføjelser er ikke bekræftet til brug i { -brand-short-name }. Du kan 
     <label data-l10n-name="find-addons">finde alternative tilføjelser</label> eller du kan bede udvikleren om at få dem bekræftet.
-
 disabled-unsigned-learn-more = Læs mere om vores indsats for at hjælpe dig med at være sikker på nettet.
-
 disabled-unsigned-devinfo =
     Udviklere, som vil have deres tilføjelser bekræftet, kan starte med at læse vores 
     <label data-l10n-name="learn-more">manual</label>.
-
 plugin-deprecation-description = Mangler du noget? Nogle plugins er ikke længere understøttet af { -brand-short-name }. <label data-l10n-name="learn-more">Læs mere.</label>
-
 legacy-warning-show-legacy = Vis forældede udvidelser
-
 legacy-extensions =
     .value = Forældede udvidelser
-
 legacy-extensions-description = Disse udvidelser møder ikke de nuværende { -brand-short-name }-standarder, så de er blevet deaktiveret. <label data-l10n-name="legacy-learn-more">Læs mere om ændringerne af tilføjelser</label>
-
 private-browsing-description2 =
     { -brand-short-name } har ændret, hvordan udvidelser fungerer i private vinduer. Som standard vil alle nyinstallerede
     udvidelser være blokeret i privat browsing-tilstand, medmindre du giver dem tilladelse i indstillingerne.
     { -brand-short-name } blokerer udvidelserne for at sikre, at de kun med din tilladelse har adgang til din aktivitet
     på nettet, når du benytter privat browsing.
     <label data-l10n-name="private-browsing-learn-more">Læs her, hvordan du håndterer indstillingerne for udvidelser.
-
 addon-category-discover = Anbefalinger
 addon-category-discover-title =
     .title = Anbefalinger
@@ -193,7 +150,6 @@
 extensions-warning-update-security-button = Aktiver
     .title = Aktiver sikkerhedstjek ved opdatering af tilføjelser
 
-
 ## Strings connected to add-on updates
 
 addon-updates-check-for-updates = Søg efter opdateringer
@@ -239,42 +195,33 @@
 # This is displayed in the page options menu
 addon-manage-extensions-shortcuts = Håndter genveje til udvidelser
     .accesskey = H
-
 shortcuts-no-addons = Du har ikke aktiveret nogen udvidelser.
 shortcuts-no-commands = Følgende udvidelser han ingen genveje:
 shortcuts-input =
     .placeholder = Indtast en genvej.
-
 shortcuts-browserAction2 = Aktiver knap på værktøjslinjen
 shortcuts-pageAction = Aktiver sidehandling
 shortcuts-sidebarAction = Vis/skjul sidepanelet
-
 shortcuts-modifier-mac = Inkluder Ctrl, Alt eller ⌘
 shortcuts-modifier-other = Inkluder Ctrl eller Alt
 shortcuts-invalid = Ugyldig kombination
 shortcuts-letter = Indtast et bogstav
 shortcuts-system = Kan ikke tilsidesætte { -brand-short-name }-genvej
-
 # String displayed in warning label when there is a duplicate shortcut
 shortcuts-duplicate = Genvej findes allerede
-
 # String displayed when a keyboard shortcut is already assigned to more than one add-on
 # Variables:
 #   $shortcut (string) - Shortcut string for the add-on
 shortcuts-duplicate-warning-message = { $shortcut } bliver brugt som genvej i mere end ét tilfælde. Dette kan give anledning til uventet opførsel.
-
 # String displayed when a keyboard shortcut is already used by another add-on
 # Variables:
 #   $addon (string) - Name of the add-on
 shortcuts-exists = Bruges allerede af { $addon }
-
 shortcuts-card-expand-button =
     { $numberToShow ->
        *[other] vis { $numberToShow } til
     }
-
 shortcuts-card-collapse-button = Vis færre
-
 header-back-button =
     .title = Gå tilbage
 
@@ -289,15 +236,12 @@
     De små programmer er ofte lavet af eksterne udviklere. Her er et udvalg, 
     som { -brand-product-name } <a data-l10n-name="learn-more-trigger">anbefaler</a>.  
     De giver dig både bedre sikkerhed, ydelse og funktionalitet.
-
 # Notice to make user aware that the recommendations are personalized.
 discopane-notice-recommendations =
     Nogle af disse anbefalinger er målrettet dig. De er baseret på andre 
     udvidelser, du har installeret, dine indstillinger og statistik for brug.
 discopane-notice-learn-more = Læs mere
-
 privacy-policy = Privatlivs-politik
-
 # Refers to the author of an add-on, shown below the name of the add-on.
 # Variables:
 #   $author (string) - The name of the add-on developer.
@@ -312,7 +256,7 @@
 # the detailed add-on view is opened, from where the add-on can be managed.
 manage-addon-button = Håndter
 find-more-addons = Find flere tilføjelser
-
+find-more-themes = Find flere temaer
 # This is a label for the button to open the "more options" menu, it is only
 # used for screen readers.
 addon-options-button =
@@ -338,46 +282,35 @@
 details-addon-button = Detaljer
 release-notes-addon-button = Udgivelsesnoter
 permissions-addon-button = Tilladelser
-
 extension-enabled-heading = Aktiveret
 extension-disabled-heading = Deaktiveret
-
 theme-enabled-heading = Aktiveret
 theme-disabled-heading = Deaktiveret
-
 plugin-enabled-heading = Aktiveret
 plugin-disabled-heading = Deaktiveret
-
 dictionary-enabled-heading = Aktiveret
 dictionary-disabled-heading = Deaktiveret
-
 locale-enabled-heading = Aktiveret
 locale-disabled-heading = Deaktiveret
-
 always-activate-button = Aktiver altid
 never-activate-button = Aktiver aldrig
-
 addon-detail-author-label = Udvikler
 addon-detail-version-label = Version
 addon-detail-last-updated-label = Senest opdateret
 addon-detail-homepage-label = Websted
 addon-detail-rating-label = Bedømmelse
-
 # Message for add-ons with a staged pending update.
 install-postponed-message = Denne udvidelse opdateres når { -brand-short-name } genstarter.
 install-postponed-button = Opdater nu
-
 # The average rating that the add-on has received.
 # Variables:
 #   $rating (number) - A number between 0 and 5. The translation should show at most one digit after the comma.
 five-star-rating =
     .title = Bedømt { NUMBER($rating, maximumFractionDigits: 1) } ud af 5
-
 # This string is used to show that an add-on is disabled.
 # Variables:
 #   $name (string) - The name of the add-on
 addon-name-disabled = { $name } (deaktiveret)
-
 # The number of reviews that an add-on has received on AMO.
 # Variables:
 #   $numberOfReviews (number) - The number of reviews received
@@ -393,14 +326,12 @@
 #   $addon (string) - Name of the add-on
 pending-uninstall-description = <span data-l10n-name="addon-name">{ $addon }</span> er blevet fjernet.
 pending-uninstall-undo-button = Fortryd
-
 addon-detail-updates-label = Tillad automatiske opdateringer
 addon-detail-updates-radio-default = Standard
 addon-detail-updates-radio-on = Til
 addon-detail-updates-radio-off = Fra
 addon-detail-update-check-label = Søg efter opdateringer
 install-update-button = Opdater
-
 # This is the tooltip text for the private browsing badge in about:addons. The
 # badge is the private browsing icon included next to the extension's name.
 addon-badge-private-browsing-allowed2 =
@@ -416,7 +347,6 @@
 addon-badge-recommended2 =
     .title = { -brand-product-name } anbefaler kun udvidelser, der overholder vores krav til sikkerhed og ydelse.
     .aria-label = { addon-badge-recommended2.title }
-
 # We hard code "Mozilla" in the string below because the extensions are built
 # by Mozilla and we don't want forks to display "by Fork".
 addon-badge-line3 =
@@ -430,19 +360,14 @@
 
 available-updates-heading = Tilgængelige opdateringer
 recent-updates-heading = Seneste opdateringer
-
 release-notes-loading = Indlæser…
 release-notes-error = Der opstod en fejl under indlæsning af udgivelsesnoterne.
-
 addon-permissions-empty = Denne udvidelse kræver ingen tilladelser
-
 addon-permissions-required = Påkrævede tilladelser for kerne-funktionalitet:
 addon-permissions-optional = Valgfrie tilladelser for yderligere funktionalitet:
 addon-permissions-learnmore = Læs mere om tilladelser
-
 recommended-extensions-heading = Anbefalede udvidelser
 recommended-themes-heading = Anbefalede temaer
-
 # A recommendation for the Firefox Color theme shown at the bottom of the theme
 # list view. The "Firefox Color" name itself should not be translated.
 recommended-theme-1 = Er du i det kreative hjørne? <a data-l10n-name="link">Byg dit eget tema med Firefox Color.</a>
@@ -457,10 +382,8 @@
 updates-heading = Håndter dine opdateringer
 discover-heading = Tilpas { -brand-short-name }
 shortcuts-heading = Håndter genveje til dine udvidelser
-
 default-heading-search-label = Find flere udvidelser
 addons-heading-search-input =
     .placeholder = Søg på addons.mozilla.org
-
 addon-page-options-button =
     .title = Indstillinger for alle tilføjelser
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/dsb/toolkit/toolkit/global/run-from-dmg.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/dsb/toolkit/toolkit/global/run-from-dmg.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/dsb/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-17 14:45:22.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/dsb/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-20 19:31:04.000000000 +0000
@@ -23,5 +23,6 @@
 ## rather than the app that was double-clicked in a .dmg.
 
 prompt-to-launch-existing-app-title = Eksistěrujuce nałoženje { -brand-short-name } wócyniś?
+prompt-to-launch-existing-app-message = Sćo južo zainstalěrował { -brand-short-name }. Wužywajśo zainstalěrowane nałoženje, aby na běžnem wostał a zgubjenju datow zajźował.
 prompt-to-launch-existing-app-yes-button = Eksistěrujuce wócyniś
 prompt-to-launch-existing-app-no-button = Ně, źěkujom se
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/el/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/el/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/el/browser/browser/appmenu.ftl	2021-10-17 14:45:25.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/el/browser/browser/appmenu.ftl	2021-10-20 19:31:12.000000000 +0000
@@ -118,6 +118,9 @@
 profiler-popup-button-idle =
     .label = Εργαλείο προφίλ
     .tooltiptext = Καταγραφή προφίλ επιδόσεων
+profiler-popup-button-recording =
+    .label = Εργαλείο προφίλ
+    .tooltiptext = Το εργαλείο προφίλ καταγράφει ένα προφίλ
 profiler-popup-button-capturing =
     .label = Εργαλείο προφίλ
     .tooltiptext = Το εργαλείο προφίλ καταγράφει ένα προφίλ
@@ -171,14 +174,23 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
+profiler-popup-presets-web-developer-description = Προτεινόμενη προεπιλογή για τον έλεγχο σφαλμάτων των περισσότερων εφαρμογών ιστού με χαμηλό κόστος.
 profiler-popup-presets-web-developer-label =
     .label = Ανάπτυξη web
+profiler-popup-presets-firefox-platform-description = Προτεινόμενη προεπιλογή για τον εσωτερικό έλεγχο σφαλμάτων της πλατφόρμας του Firefox.
 profiler-popup-presets-firefox-platform-label =
     .label = Πλατφόρμα Firefox
+profiler-popup-presets-firefox-front-end-description = Προτεινόμενη προεπιλογή για τον εσωτερικό έλεγχο σφαλμάτων του περιβάλλοντος του Firefox.
+profiler-popup-presets-firefox-front-end-label =
+    .label = Περιβάλλον Firefox
+profiler-popup-presets-firefox-graphics-description = Προτεινόμενη προεπιλογή για τη διερεύνηση επιδόσεων γραφικών του Firefox.
 profiler-popup-presets-firefox-graphics-label =
     .label = Γραφικά Firefox
+profiler-popup-presets-media-description = Προτεινόμενη προεπιλογή για τη διάγνωση προβλημάτων ήχου και βίντεο.
 profiler-popup-presets-media-label =
     .label = Πολυμέσα
+profiler-popup-presets-custom-label =
+    .label = Προσαρμογή
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/el/browser/chrome/browser/tabbrowser.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/el/browser/chrome/browser/tabbrowser.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/el/browser/chrome/browser/tabbrowser.properties	2021-10-17 14:45:25.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/el/browser/chrome/browser/tabbrowser.properties	2021-10-20 19:31:12.000000000 +0000
@@ -93,7 +93,7 @@
 
 # LOCALIZATION NOTE (tabs.closeTabsWithKeyConfirmCheckbox):
 # %S is replaced with the text of the keyboard shortcut for quitting.
-tabs.closeTabsWithKeyConfirmCheckbox=Επιβεβαίωση πριν από την έξοδο από το %S
+tabs.closeTabsWithKeyConfirmCheckbox=Επιβεβαίωση πριν από την έξοδο με %S
 
 # LOCALIZATION NOTE (tabs.closeTabs.tooltip):
 # Semicolon-separated list of plural forms. See:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/el/devtools/client/perftools.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/el/devtools/client/perftools.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/el/devtools/client/perftools.ftl	2021-10-17 14:45:25.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/el/devtools/client/perftools.ftl	2021-10-20 19:31:12.000000000 +0000
@@ -122,9 +122,16 @@
 # The same labels and descriptions are also defined in appmenu.ftl.
 
 perftools-presets-web-developer-label = Ανάπτυξη web
+perftools-presets-web-developer-description = Προτεινόμενη προεπιλογή για τον έλεγχο σφαλμάτων των περισσότερων εφαρμογών ιστού με χαμηλό κόστος.
 perftools-presets-firefox-platform-label = Πλατφόρμα Firefox
+perftools-presets-firefox-platform-description = Προτεινόμενη προεπιλογή για τον εσωτερικό έλεγχο σφαλμάτων της πλατφόρμας του Firefox.
+perftools-presets-firefox-front-end-label = Περιβάλλον Firefox
+perftools-presets-firefox-front-end-description = Προτεινόμενη προεπιλογή για τον εσωτερικό έλεγχο σφαλμάτων του περιβάλλοντος του Firefox.
 perftools-presets-firefox-graphics-label = Γραφικά Firefox
+perftools-presets-firefox-graphics-description = Προτεινόμενη προεπιλογή για τη διερεύνηση επιδόσεων γραφικών του Firefox.
 perftools-presets-media-label = Πολυμέσα
+perftools-presets-media-description = Προτεινόμενη προεπιλογή για τη διάγνωση προβλημάτων ήχου και βίντεο.
+perftools-presets-custom-label = Προσαρμογή
 
 ##
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/browser/browser/newtab/onboarding.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/browser/browser/newtab/onboarding.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/browser/browser/newtab/onboarding.ftl	2021-10-17 14:45:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/browser/browser/newtab/onboarding.ftl	2021-10-20 19:31:39.000000000 +0000
@@ -201,7 +201,7 @@
 # Input description for light theme
 onboarding-multistage-theme-description-light =
     .aria-description =
-        Usar una apariencia clara para botones, 
+        Usar una apariencia clara para botones,
         menúes y ventanas.
 # Tooltip displayed on hover of dark theme
 onboarding-multistage-theme-tooltip-dark-2 =
@@ -211,7 +211,7 @@
 # Input description for dark theme
 onboarding-multistage-theme-description-dark =
     .aria-description =
-        Usar una apariencia oscura para botones, 
+        Usar una apariencia oscura para botones,
         menúes y ventanas.
 # Tooltip displayed on hover of Alpenglow theme
 onboarding-multistage-theme-tooltip-alpenglow-2 =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/browser/browser/upgradeDialog.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/browser/browser/upgradeDialog.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/browser/browser/upgradeDialog.ftl	2021-10-17 14:45:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/browser/browser/upgradeDialog.ftl	2021-10-20 19:31:39.000000000 +0000
@@ -76,7 +76,8 @@
 ## Colorway screen
 
 # This title can be explicitly wrapped to control which words are on which line.
-upgrade-dialog-colorway-title = Elegí tu paleta
+upgrade-dialog-colorway-title = Elija una paleta
+# This is shown to users with a custom home page, so they can switch to default.
 upgrade-dialog-colorway-home-checkbox = Cambiar a la página de inicio de Firefox con un fondo temático
 upgrade-dialog-colorway-primary-button = Guardar la combinación de colores
 upgrade-dialog-colorway-secondary-button = Mantener el tema anterior
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/browser/chrome/browser/browser.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/browser/chrome/browser/browser.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/browser/chrome/browser/browser.properties	2021-10-17 14:45:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/browser/chrome/browser/browser.properties	2021-10-20 19:31:39.000000000 +0000
@@ -102,7 +102,7 @@
 # LOCALIZATION NOTE (webextPerms.updateText)
 # %S is replaced with the localized name of the updated extension.
 # Note, this string will be used as raw markup. Avoid characters like <, >, &
-webextPerms.updateText2=Se actualizó %S. Tiene que aprobar nuevos permisos antes que la versión actualizada se instale. Seleccionar “Cancelar” mantendrá la versión actual del complemento. Esta extensión tendrá permiso para:
+webextPerms.updateText2=Se actualizó %S. Tiene que aprobar nuevos permisos antes que la versión actualizada se instale. Seleccionar “Cancelar” mantendrá la versión actual de la extensión. Esta extensión tendrá permiso para:
 
 webextPerms.updateAccept.label=Actualizar
 webextPerms.updateAccept.accessKey=u
@@ -245,7 +245,7 @@
 addonInstallErrorIncompatible=%3$S no pudo instalarse porque no es compatible con %1$S %2$S.
 
 # LOCALIZATION NOTE (addonInstallErrorBlocklisted): %S is add-on name
-addonInstallErrorBlocklisted=%S no pudo instalarse porque tiene un riesgo alto de causar problemas de estabilidad o seguridad.
+addonInstallErrorBlocklisted=%S no se pudo instalar porque tiene un alto riesgo de causar problemas de estabilidad o de seguridad.
 
 unsignedAddonsDisabled.message=Uno o más de los complementos instalados no pueden ser verificados y fueron deshabilitados.
 unsignedAddonsDisabled.learnMore.label=Conocer más
@@ -359,7 +359,7 @@
 refreshBlocked.goButton=Permitir
 refreshBlocked.goButton.accesskey=P
 refreshBlocked.refreshLabel=%S evitó que esta página se recargue automáticamente.
-refreshBlocked.redirectLabel=%S evitó que esta página se redireccione automáticamente a otra página.
+refreshBlocked.redirectLabel=%S evitó que esta página se redirigiera automáticamente a otra página.
 
 # General bookmarks button
 # LOCALIZATION NOTE (bookmarksMenuButton.tooltip):
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/browser/chrome/overrides/netError.dtd firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/browser/chrome/overrides/netError.dtd
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/browser/chrome/overrides/netError.dtd	2021-10-17 14:45:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/browser/chrome/overrides/netError.dtd	2021-10-20 19:31:39.000000000 +0000
@@ -169,7 +169,7 @@
 <!ENTITY errorReporting.automatic2 "Informar errores como este para ayudar a Mozilla a identificarlo y bloquear sitios maliciosos">
 <!ENTITY errorReporting.learnMore "Conocer más…">
 
-<!ENTITY remoteXUL.longDesc "<p><ul><li>Contacte a los dueños de sitio web para informarles de este problema.</li></ul></p>">
+<!ENTITY remoteXUL.longDesc "<p><ul><li>Contacte a los dueños del sitio web para informarles de este problema.</li></ul></p>">
 
 <!-- LOCALIZATION NOTE (sslv3Used.longDesc2) - Do not translate
      "SSL_ERROR_UNSUPPORTED_VERSION". -->
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/chat/irc.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/chat/irc.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/chat/irc.properties	2021-10-17 14:45:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/chat/irc.properties	2021-10-20 19:31:39.000000000 +0000
@@ -61,7 +61,7 @@
 command.modeUser2=%S &lt;nick&gt; [(+|-)&lt;mode&gt;]: Get, set or unset a user's mode.
 command.modeChannel2=%S [&lt;canal&gt;] [(+|-)&lt;nuevo modo&gt; [&lt;parámetro&gt;][,&lt;parámetro&gt;]*]: Obtener, establecer o cambiar un modo de canal.
 command.msg=%S &lt;nick&gt; &lt;message&gt;: Enviar un mensaje privado a un usuario (a diferencia de un canal).
-command.nick=%S &lt;nuevo apodo&gt;: Cambie su apodo.
+command.nick=%S &lt;nuevo apodo&gt;: Cambiar el apodo.
 command.nickserv=%S &lt;comando&gt;: Envía un comando a NickServ.
 command.notice=%S &lt;target&gt; &lt;message&gt;: Envía una noticia a un usuario o canal.
 command.op=%S &lt;nick1&gt;[,&lt;nick2&gt;]*: Concede el estatus de operador de canal a alguien. Debe ser un operador de canal para hacer esto.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/dom/chrome/netError.dtd firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/dom/chrome/netError.dtd
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/dom/chrome/netError.dtd	2021-10-17 14:45:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/dom/chrome/netError.dtd	2021-10-20 19:31:39.000000000 +0000
@@ -94,7 +94,7 @@
 <!ENTITY corruptedContentErrorv2.longDesc "<p>La página que está tratando de ver no puede mostrarse porque se detectó un error en la transmisión de los datos.</p><ul><li>Contacte a los dueños del sitio web para informarles de este problema.</li></ul>">
 
 <!ENTITY remoteXUL.title "XUL remoto">
-<!ENTITY remoteXUL.longDesc "<p><ul><li>Contacte a los dueños de sitio web para informarles de este problema.</li></ul></p>">
+<!ENTITY remoteXUL.longDesc "<p><ul><li>Contacte a los dueños del sitio web para informarles de este problema.</li></ul></p>">
 
 <!ENTITY inadequateSecurityError.title "La conexión no es segura">
 <!-- LOCALIZATION NOTE (inadequateSecurityError.longDesc) - Do not translate
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/dom/chrome/plugins.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/dom/chrome/plugins.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/dom/chrome/plugins.properties	2021-10-17 14:45:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/dom/chrome/plugins.properties	2021-10-20 19:31:39.000000000 +0000
@@ -2,16 +2,12 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-# LOCALIZATION NOTE:
-#    Those strings are inserted into an HTML page, so all HTML characters
-#    have to be escaped in a way that they show up correctly in HTML!
-
 # GMP Plugins
 gmp_license_info=Información de licencia
 gmp_privacy_info=Información de privacidad
 
 openH264_name=Codec de video OpenH264 provisto por Cisco Systems, Inc.
-openH264_description2=Este plugin es instalado automáticamente por Mozilla to complir con la especificación WebRTC y habilitar llamadas WebRTC con dispositivos que requieren el codec de video H.264. Visite http://www.openh264.org/ para ver el código fuente y conocer más sobre la implementación.
+openH264_description2=Este plugin es instalado automáticamente por Mozilla para cumplir con la especificación WebRTC y habilitar llamadas WebRTC con dispositivos que requieren el codec de video H.264. Visite https://www.openh264.org/ para ver el código fuente y conocer más sobre la implementación.
 
 cdm_description2=Este plugin permite la reproducción de medios cifrados de acuerdo con la especificación de Encrypted Media Extensions. Los sitios suelen utilizar medios cifrados para protegerse contra la copia de contenido multimedia de calidad superior. Visite https://www.w3.org/TR/encrypted-media/ para conseguir más información sobre Encrypted Media Extensions.
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/toolkit/toolkit/about/aboutRights.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/toolkit/toolkit/about/aboutRights.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-AR/toolkit/toolkit/about/aboutRights.ftl	2021-10-17 14:45:39.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-AR/toolkit/toolkit/about/aboutRights.ftl	2021-10-20 19:31:39.000000000 +0000
@@ -20,7 +20,10 @@
 rights-safebrowsing-term-3 = Desmarcar la opción para "{ enableSafeBrowsing-label }"
 enableSafeBrowsing-label = Bloquear contenido peligroso y engañoso
 rights-safebrowsing-term-4 = La navegación segura ahora está deshabilitada
-rights-locationawarebrowsing = <strong>Navegación con ubicación geográfica: </strong>siempre es opcional.  Nunca se envía información de ubicación sin su permiso.  Si desea deshabilitar esta característica por completo, siga estos pasos:
+rights-locationawarebrowsing =
+    <strong>Navegación con ubicación geográfica: </strong>siempre es opcional. Nunca se envía
+    información de ubicación sin su permiso. Si quiere
+    deshabilitar esta característica por completo, siga estos pasos:
 rights-locationawarebrowsing-term-1 = En la barra de direcciones ingrese <code>about:config</code>
 rights-locationawarebrowsing-term-2 = Ingrese geo.enabled
 rights-locationawarebrowsing-term-3 = Haga doble clic en la preferencia geo.enabled
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/browser/browser/aboutUnloads.ftl	2021-10-17 14:45:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/browser/browser/aboutUnloads.ftl	2021-10-20 19:31:53.000000000 +0000
@@ -21,6 +21,19 @@
     de la pestaña y en <em>itálica</em> cuando el proceso se comparte entre diferentes
     pestañas. Puede activar la descarga de pestañas de manera manual haciendo clic en el botón <em>Descargar</em>
     aquí debajo.
+about-unloads-intro =
+    { -brand-short-name } tiene una función que descarga automáticamente pestañas
+    para evitar que la aplicación falle por falta de memoria
+    cuando la memoria disponible en el sistema es baja. La siguiente pestaña que se descargará es
+    elegida en función de múltiples atributos. Esta página muestra cómo
+    { -brand-short-name } prioriza las pestañas y qué pestaña se descargará
+    cuando se active la descarga de pestañas. Puede descargar pestañas manualmente
+    haciendo clic en el botón <em>Descargar</em>.
+# The link points to a Firefox documentation page, only available in English,
+# with title "Tab Unloading"
+about-unloads-learn-more =
+    Vea <a data-l10n-name="doc-link">Descarga de pestañas</a> para saber más sobre
+    la función y esta página.
 about-unloads-last-updated = Última actualización: { DATETIME($date, year: "numeric", month: "numeric", day: "numeric", hour: "numeric", minute: "numeric", second: "numeric", hour12: "false") }
 about-unloads-button-unload = Descargar
     .title = Descargar la pestaña con la mayor prioridad
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/browser/browser/appmenu.ftl	2021-10-17 14:45:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/browser/browser/appmenu.ftl	2021-10-20 19:31:53.000000000 +0000
@@ -118,6 +118,12 @@
 profiler-popup-button-idle =
     .label = Analizador
     .tooltiptext = Grabar un perfil de rendimiento
+profiler-popup-button-recording =
+    .label = Analizador
+    .tooltiptext = El analizador está grabando un perfil
+profiler-popup-button-capturing =
+    .label = Analizador
+    .tooltiptext = El analizador está capturando un perfil
 profiler-popup-title =
     .value = { -profiler-brand-name }
 profiler-popup-reveal-description-button =
@@ -168,6 +174,23 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
+profiler-popup-presets-web-developer-description = Configuración recomendada para la depuración de la mayoría de aplicaciones web, con poca sobrecarga.
+profiler-popup-presets-web-developer-label =
+    .label = Desarrollador web
+profiler-popup-presets-firefox-platform-description = Configuración predeterminada recomendada para la depuración interna de la plataforma Firefox.
+profiler-popup-presets-firefox-platform-label =
+    .label = Plataforma Firefox
+profiler-popup-presets-firefox-front-end-description = Configuración predeterminada recomendada para la depuración interna de la interfaz de Firefox.
+profiler-popup-presets-firefox-front-end-label =
+    .label = Interfaz de Firefox
+profiler-popup-presets-firefox-graphics-description = Configuración predeterminada para la investigación de rendimiento gráfico de Firefox.
+profiler-popup-presets-firefox-graphics-label =
+    .label = Gráficos de Firefox
+profiler-popup-presets-media-description = Configuración predeterminada para diagnosticar problemas de audio y vídeo.
+profiler-popup-presets-media-label =
+    .label = Multimedia
+profiler-popup-presets-custom-label =
+    .label = Personalizado
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/browser/browser/newtab/onboarding.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/browser/browser/newtab/onboarding.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/browser/browser/newtab/onboarding.ftl	2021-10-17 14:45:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/browser/browser/newtab/onboarding.ftl	2021-10-20 19:31:53.000000000 +0000
@@ -3,18 +3,6 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 
-### UI strings for the simplified onboarding modal / about:welcome
-### Various strings use a non-breaking space to avoid a single dangling /
-### widowed word, so test on various window sizes if you also want this.
-
-
-## These button action text can be split onto multiple lines, so use explicit
-## newlines in translations to control where the line break appears (e.g., to
-## avoid breaking quoted text).
-
-## Welcome modal dialog strings
-
-
 ### UI strings for the simplified onboarding / multistage about:welcome
 ### Various strings use a non-breaking space to avoid a single dangling /
 ### widowed word, so test on various window sizes if you also want this.
@@ -24,32 +12,11 @@
 ### Various strings use a non-breaking space to avoid a single dangling /
 ### widowed word, so test on various window sizes if you also want this.
 
+
 ## Welcome page strings
 
 onboarding-welcome-header = Bienvenido a { -brand-short-name }
-
 onboarding-start-browsing-button-label = Empezar a navegar
-
-## Welcome full page string
-
-## Firefox Sync modal dialog strings.
-
-## This is part of the line "Enter your email to continue to Firefox Sync"
-
-
-## These are individual benefit messages shown with an image, title and
-## description.
-
-
-## These strings belong to the individual onboarding messages.
-
-
-## Each message has a title and a description of what the browser feature is.
-## Each message also has an associated button for the user to try the feature.
-## The string for the button is found above, in the UI strings section
-
-## Message strings belonging to the Return to AMO flow
-
 onboarding-not-now-button-label = Ahora no
 
 ## Custom Return To AMO onboarding strings
@@ -71,14 +38,12 @@
 onboarding-multistage-welcome-primary-button-label = Iniciar configuración
 onboarding-multistage-welcome-secondary-button-label = Iniciar sesión
 onboarding-multistage-welcome-secondary-button-text = ¿Tiene una cuenta?
-
 # The <span data-l10n-name="zap"></span> in this string allows a "zap" underline style to be
 # automatically added to the text inside it. "default" should stay inside the span.
 onboarding-multistage-set-default-header = Establecer { -brand-short-name } como <span data-l10n-name="zap">predeterminado</span>
 onboarding-multistage-set-default-subtitle = Velocidad, seguridad y privacidad cada vez que navega.
 onboarding-multistage-set-default-primary-button-label = Convertir en predeterminado
 onboarding-multistage-set-default-secondary-button-label = Ahora no
-
 # The <span data-l10n-name="zap"></span> in this string allows a "zap" underline style to be
 # automatically added to the text inside it. { -brand-short-name } should stay inside the span.
 onboarding-multistage-pin-default-header = Empiece poniendo <span data-l10n-name="zap">{ -brand-short-name }</span> a un clic de distancia
@@ -88,14 +53,12 @@
 # The "settings" here refers to "Windows 10 Settings App" and not the browser's
 onboarding-multistage-pin-default-help-text = Esto fijará { -brand-short-name } en la barra de tareas y abrirá la configuración
 onboarding-multistage-pin-default-primary-button-label = Hacer de { -brand-short-name } mi navegador principal
-
 # The <span data-l10n-name="zap"></span> in this string allows a "zap" underline style to be
 # automatically added to the text inside it. "more" should stay inside the span.
 onboarding-multistage-import-header = Importe sus contraseñas, marcadores y <span data-l10n-name="zap">más</span>
 onboarding-multistage-import-subtitle = ¿Viene de otro navegador? Es fácil llevar todo a { -brand-short-name }.
 onboarding-multistage-import-primary-button-label = Iniciar importación
 onboarding-multistage-import-secondary-button-label = Ahora no
-
 # Info displayed in the footer of import settings screen during onboarding flow.
 # This supports welcome screen showing top sites imported from the user's default browser.
 onboarding-import-sites-disclaimer = Los sitios listados se han encontrado en este dispositivo. { -brand-short-name } no guarda ni sincroniza datos de otro navegador a menos que usted elija importarlos.
@@ -108,22 +71,18 @@
 #   $total (Int) - Total number of pages
 onboarding-welcome-steps-indicator =
     .aria-label = Primeros pasos: pantalla { $current } de { $total }
-
 # The <span data-l10n-name="zap"></span> in this string allows a "zap" underline style to be
 # automatically added to the text inside it. "look" should stay inside the span.
 onboarding-multistage-theme-header = Elija un <span data-l10n-name="zap">aspecto</span>
 onboarding-multistage-theme-subtitle = Personalice { -brand-short-name } con un tema.
 onboarding-multistage-theme-primary-button-label2 = Hecho
 onboarding-multistage-theme-secondary-button-label = Ahora no
-
 # Automatic theme uses operating system color settings
 onboarding-multistage-theme-label-automatic = Automático
-
 onboarding-multistage-theme-label-light = Claro
 onboarding-multistage-theme-label-dark = Oscuro
 # "Firefox Alpenglow" here is the name of the theme, and should be kept in English.
 onboarding-multistage-theme-label-alpenglow = Firefox Alpenglow
-
 # "Hero Text" displayed on left side of welcome screen.
 # The "Fire" in "Fire starts here" plays on the "Fire" in "Firefox".
 # It also signals the passion users bring to Firefox, how they use
@@ -132,13 +91,11 @@
 # An alternative title for localization is: "It starts here".
 # This text can be formatted to span multiple lines as needed.
 mr1-welcome-screen-hero-text = Todo empieza aquí
-
 # Caption for background image in about:welcome. "Soraya Osorio" is the name
 # of the person and shouldn't be translated.
 # In case your language needs to adapt the nouns to a gender, Soraya is a female name (she/her).
 # You can see the picture in about:welcome in Nightly 90.
 mr1-onboarding-welcome-image-caption = Soraya Osorio - Diseñadora de muebles, fan de Firefox
-
 # This button will open system settings to turn on prefers-reduced-motion
 mr1-onboarding-reduce-motion-button-label = Desactivar animaciones
 
@@ -164,11 +121,9 @@
 # This string will be used on welcome page primary button label
 # when Firefox is both pinned and default
 mr1-onboarding-get-started-primary-button-label = Comenzar
-
 mr1-onboarding-welcome-header = Te damos la bienvenida a { -brand-short-name }
 mr1-onboarding-set-default-pin-primary-button-label = Hacer de { -brand-short-name } mi navegador principal
     .title = Establece { -brand-short-name } como navegador predeterminado y lo ancla a la barra de tareas
-
 # This string will be used on welcome page primary button label
 # when Firefox is not default but already pinned
 mr1-onboarding-set-default-only-primary-button-label = Hacer de { -brand-short-name } mi navegador predeterminado
@@ -186,24 +141,32 @@
 
 mr1-onboarding-import-header = Llévelo todo con usted
 mr1-onboarding-import-subtitle = Importe sus contraseñas, <br/>marcadores y más.
-
 # The primary import button label will depend on whether we can detect which browser was used to download Firefox.
 # Variables:
 #   $previous (Str) - Previous browser name, such as Edge, Chrome
 mr1-onboarding-import-primary-button-label-attribution = Importar desde { $previous }
-
 # This string will be used in cases where we can't detect the previous browser name.
 mr1-onboarding-import-primary-button-label-no-attribution = Importar desde el navegador anterior
 mr1-onboarding-import-secondary-button-label = Ahora no
-
+mr2-onboarding-colorway-header = La vida a todo color
+mr2-onboarding-colorway-subtitle = Nuevas combinaciones de colores vibrantes. Disponible por tiempo limitado.
+mr2-onboarding-colorway-primary-button-label = Guardar combinación de colores
+mr2-onboarding-colorway-secondary-button-label = Ahora no
+mr2-onboarding-colorway-label-soft = Suave
+mr2-onboarding-colorway-label-balanced = Equilibrado
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+mr2-onboarding-colorway-label-bold = Fuerte
+# Automatic theme uses operating system color settings
+mr2-onboarding-theme-label-auto = Auto
+# This string will be used for Default theme
+mr2-onboarding-theme-label-default = Predeterminado
 mr1-onboarding-theme-header = Hágalo suyo
 mr1-onboarding-theme-subtitle = Personalizar { -brand-short-name } con un tema
 mr1-onboarding-theme-primary-button-label = Guardar tema
 mr1-onboarding-theme-secondary-button-label = Ahora no
-
 # System theme uses operating system color settings
 mr1-onboarding-theme-label-system = Tema del sistema
-
 mr1-onboarding-theme-label-light = Claro
 mr1-onboarding-theme-label-dark = Oscuro
 # "Alpenglow" here is the name of the theme, and should be kept in English.
@@ -214,6 +177,7 @@
 ## doesn't become too long. Line breaks will be preserved when displaying the
 ## tooltip.
 
+
 ## Please make sure to split the content of the title attribute into lines whose
 ## width corresponds to about 40 Latin characters, to ensure that the tooltip
 ## doesn't become too long. Line breaks will be preserved when displaying the
@@ -224,43 +188,36 @@
     .title =
         Heredar la apariencia de su sistema
         operativo para botones, menús y ventanas.
-
 # Input description for automatic theme
 onboarding-multistage-theme-description-automatic-2 =
     .aria-description =
         Heredar la apariencia de su sistema
         operativo para botones, menús y ventanas.
-
 # Tooltip displayed on hover of light theme
 onboarding-multistage-theme-tooltip-light-2 =
     .title =
         Usar una apariencia clara para botones, 
         menús y ventanas.
-
 # Input description for light theme
 onboarding-multistage-theme-description-light =
     .aria-description =
         Usar una apariencia clara para botones, 
         menús y ventanas.
-
 # Tooltip displayed on hover of dark theme
 onboarding-multistage-theme-tooltip-dark-2 =
     .title =
         Usar una apariencia oscura para botones, 
         menús y ventanas.
-
 # Input description for dark theme
 onboarding-multistage-theme-description-dark =
     .aria-description =
         Usar una apariencia oscura para botones, 
         menús y ventanas.
-
 # Tooltip displayed on hover of Alpenglow theme
 onboarding-multistage-theme-tooltip-alpenglow-2 =
     .title =
         Usar una apariencia colorida para botones,
         menús y ventanas.
-
 # Input description for Alpenglow theme
 onboarding-multistage-theme-description-alpenglow =
     .aria-description =
@@ -274,45 +231,68 @@
     .title =
         Seguir el tema del sistema operativo
         para botones, menús y ventanas.
-
 # Input description for system theme
 mr1-onboarding-theme-description-system =
     .aria-description =
         Seguir el tema del sistema operativo
         para botones, menús y ventanas.
-
 # Tooltip displayed on hover of light theme
 mr1-onboarding-theme-tooltip-light =
     .title =
         Usar un tema claro para botones,
         menús y ventanas.
-
 # Input description for light theme
 mr1-onboarding-theme-description-light =
     .aria-description =
         Usar un tema claro para botones,
         menús y ventanas.
-
 # Tooltip displayed on hover of dark theme
 mr1-onboarding-theme-tooltip-dark =
     .title =
         Usar un tema oscuro para botones,
         menús y ventanas.
-
 # Input description for dark theme
 mr1-onboarding-theme-description-dark =
     .aria-description =
         Usar un tema oscuro para botones,
         menús y ventanas.
-
 # Tooltip displayed on hover of Alpenglow theme
 mr1-onboarding-theme-tooltip-alpenglow =
     .title =
         Usar un tema dinámico y colorido para botones,
         menús y ventanas.
-
 # Input description for Alpenglow theme
 mr1-onboarding-theme-description-alpenglow =
     .aria-description =
         Usar un tema dinámico y colorido para botones,
         menús y ventanas.
+# Tooltip displayed on hover of non-default colorway theme
+# variations e.g. soft, balanced, bold
+mr2-onboarding-theme-tooltip =
+    .title = Usar esta combinación de colores.
+# Selector description for non-default colorway theme
+# variations e.g. soft, balanced, bold
+mr2-onboarding-theme-description =
+    .aria-description = Usar esta combinación de colores.
+# Tooltip displayed on hover of colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-tooltip =
+    .title = Explorar combinaciones de colores de { $colorwayName }.
+# Selector description for colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-description =
+    .aria-description = Explorar combinaciones de colores de { $colorwayName }.
+# Tooltip displayed on hover of default themes
+mr2-onboarding-default-theme-tooltip =
+    .title = Explorar los temas predeterminados.
+# Selector description for default themes
+mr2-onboarding-default-theme-description =
+    .aria-description = Explorar los temas predeterminados.
+
+## Strings for Thank You page
+
+mr2-onboarding-thank-you-header = Gracias por elegirnos
+mr2-onboarding-thank-you-text = { -brand-short-name } es un navegador independiente respaldado por una organización sin ánimo de lucro. Juntos, estamos haciendo que la web sea más segura, saludable y privada.
+mr2-onboarding-start-browsing-button-label = Empezar a navegar
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/browser/browser/places.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/browser/browser/places.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/browser/browser/places.ftl	2021-10-17 14:45:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/browser/browser/places.ftl	2021-10-20 19:31:53.000000000 +0000
@@ -110,6 +110,9 @@
            *[other] Eliminar marcadores
         }
     .accesskey = e
+places-show-in-folder =
+    .label = Mostrar en carpeta
+    .accesskey = t
 # Variables:
 # $count (number) - The number of elements being selected for removal.
 places-delete-bookmark =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/browser/browser/upgradeDialog.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/browser/browser/upgradeDialog.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/browser/browser/upgradeDialog.ftl	2021-10-17 14:45:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/browser/browser/upgradeDialog.ftl	2021-10-20 19:31:53.000000000 +0000
@@ -64,6 +64,32 @@
 upgrade-dialog-theme-title-2 = Comience desde cero con un nuevo tema
 upgrade-dialog-theme-system = Tema del sistema
     .title = Usar el tema del sistema operativo para botones, menús y ventanas
+
+## Start screen
+
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-start-title = La vida a todo color
+upgrade-dialog-start-subtitle = Nuevas combinaciones de colores vibrantes. Disponible por tiempo limitado.
+upgrade-dialog-start-primary-button = Explorar combinaciones de colores
+upgrade-dialog-start-secondary-button = Ahora no
+
+## Colorway screen
+
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-colorway-title = Elija su paleta
+# This is shown to users with a custom home page, so they can switch to default.
+upgrade-dialog-colorway-home-checkbox = Cambiar a la página de inicio de Firefox con un fondo temático
+upgrade-dialog-colorway-primary-button = Guardar combinación de colores
+upgrade-dialog-colorway-secondary-button = Mantener el tema anterior
+upgrade-dialog-colorway-theme-tooltip =
+    .title = Explorar los temas predeterminados
+# $colorwayName (String) - Name of colorway, e.g., Abstract, Cheers
+upgrade-dialog-colorway-colorway-tooltip =
+    .title = Explorar combinaciones de colores de { $colorwayName }
+upgrade-dialog-colorway-default-theme = Predeterminado
+# "Auto" is short for "Automatic"
+upgrade-dialog-colorway-theme-auto = Auto
+    .title = Usar el tema del sistema operativo para los botones, menús y ventanas
 upgrade-dialog-theme-light = Claro
     .title = Usar un tema claro para botones, menús y ventanas
 upgrade-dialog-theme-dark = Oscuro
@@ -74,3 +100,18 @@
     .title = Usar el tema que estaba instalado antes de actualizar { -brand-short-name }
 upgrade-dialog-theme-primary-button = Guardar tema
 upgrade-dialog-theme-secondary-button = Ahora no
+upgrade-dialog-colorway-variation-soft = Suave
+    .title = Usar esta combinación
+upgrade-dialog-colorway-variation-balanced = Equilibrado
+    .title = Usar esa combinación
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+upgrade-dialog-colorway-variation-bold = Fuerte
+    .title = Usar esta combinación
+
+## Thank you screen
+
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-thankyou-title = Gracias por elegirnos
+upgrade-dialog-thankyou-subtitle = { -brand-short-name } es un navegador independiente respaldado por una organización sin ánimo de lucro. Juntos, estamos haciendo que la web sea más segura, saludable y privada.
+upgrade-dialog-thankyou-primary-button = Empezar a navegar
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/devtools/client/components.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/devtools/client/components.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/devtools/client/components.properties	2021-10-17 14:45:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/devtools/client/components.properties	2021-10-20 19:31:53.000000000 +0000
@@ -22,3 +22,16 @@
 # LOCALIZATION NOTE (notificationBox.closeTooltip): The content of a tooltip that
 # appears when hovering over the close button in a notification box.
 notificationBox.closeTooltip=Cerrar este mensaje
+
+# LOCALIZATION NOTE (appErrorBoundary.description): This is the information displayed
+# once the panel errors.
+# %S represents the name of panel which has the crash.
+appErrorBoundary.description=El panel %S ha fallado.
+
+# LOCALIZATION NOTE (appErrorBoundary.fileBugButton): This is the text that appears in
+# the button to visit the bug filing link.
+appErrorBoundary.fileBugButton=Informar de un error
+
+# LOCALIZATION NOTE (appErrorBoundary.reloadPanelInfo): This is the text that appears
+# after the panel errors to instruct the user to reload the panel.
+appErrorBoundary.reloadPanelInfo=Cierre y vuelva a abrir la caja de herramientas para eliminar este error.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/devtools/client/perftools.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/devtools/client/perftools.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/devtools/client/perftools.ftl	2021-10-17 14:45:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/devtools/client/perftools.ftl	2021-10-20 19:31:54.000000000 +0000
@@ -42,9 +42,7 @@
 
 # The size of the memory buffer used to store things in the profiler.
 perftools-range-entries-label = Tamaño del buffer:
-
 perftools-custom-threads-label = Añadir hilos personalizados por nombre:
-
 perftools-devtools-interval-label = Intervalo:
 perftools-devtools-threads-label = Hilos:
 perftools-devtools-settings-label = Ajustes
@@ -103,7 +101,6 @@
 ##
 
 perftools-record-all-registered-threads = Omitir las selecciones de arriba y grabar todos los hilos registrados
-
 perftools-tools-threads-input-label =
     .title = Estos nombres de hilos son una lista separada por comas que se utiliza para activar la creación de perfiles de los hilos en el perfilador. El nombre debe ser solo una coincidencia parcial del nombre del hilo para que se incluya. Es sensible a los espacios en blanco.
 
@@ -112,9 +109,29 @@
 ## preferences are true.
 
 perftools-onboarding-message = <b>Nuevo</b>: { -profiler-brand-name } ahora está integrado en las herramientas para desarrolladores. <a>Saber más</a> sobre esta poderosa herramienta.
-
 # `options-context-advanced-settings` is defined in toolbox-options.ftl
 perftools-onboarding-reenable-old-panel = (Por un tiempo limitado, puede acceder al panel original de rendimiento a través de <a>{ options-context-advanced-settings }</a>)
-
 perftools-onboarding-close-button =
     .aria-label = Cerrar el mensaje introductorio
+
+## Profiler presets
+
+
+# Presets and their l10n IDs are defined in the file
+# devtools/client/performance-new/popup/background.jsm.js
+# The same labels and descriptions are also defined in appmenu.ftl.
+
+perftools-presets-web-developer-label = Desarrollador web
+perftools-presets-web-developer-description = Configuración recomendada para la depuración de la mayoría de aplicaciones web, con poca sobrecarga.
+perftools-presets-firefox-platform-label = Plataforma Firefox
+perftools-presets-firefox-platform-description = Configuración predeterminada recomendada para la depuración interna de la plataforma Firefox.
+perftools-presets-firefox-front-end-label = Interfaz de Firefox
+perftools-presets-firefox-front-end-description = Configuración predeterminada recomendada para la depuración interna de la interfaz de Firefox.
+perftools-presets-firefox-graphics-label = Gráficos de Firefox
+perftools-presets-firefox-graphics-description = Configuración predeterminada para la investigación de rendimiento gráfico de Firefox.
+perftools-presets-media-label = Multimedia
+perftools-presets-media-description = Configuración predeterminada para diagnosticar problemas de audio y vídeo.
+perftools-presets-custom-label = Personalizado
+
+##
+
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/dom/chrome/dom/dom.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/dom/chrome/dom/dom.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/dom/chrome/dom/dom.properties	2021-10-17 14:45:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/dom/chrome/dom/dom.properties	2021-10-20 19:31:54.000000000 +0000
@@ -421,3 +421,6 @@
 ElementReleaseCaptureWarning=Element.releaseCapture() está obsoleto. Utilice Element.releasePointerCapture() en su lugar. Para más información https://developer.mozilla.org/docs/Web/API/Element/releasePointerCapture
 # LOCALIZATION NOTE: Do not translate "Document.releaseCapture()" and "Element.releasePointerCapture()".
 DocumentReleaseCaptureWarning=Document.releasecapture() está obsoleto. Utilice Element.releasePointerCapture() en su lugar. Para más información https://developer.mozilla.org/docs/Web/API/Element/releasePointerCapture
+
+# LOCALIZATION NOTE: Don't translate browser.runtime.lastError, %S is the error message from the unchecked value set on browser.runtime.lastError.
+WebExtensionUncheckedLastError=El valor de browser.runtime.lastError no fue verificado: %S
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/toolkit/toolkit/global/run-from-dmg.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/toolkit/toolkit/global/run-from-dmg.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/es-ES/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-17 14:45:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/es-ES/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-20 19:31:54.000000000 +0000
@@ -17,3 +17,12 @@
 
 install-failed-title = Ha fallado la instalación de { -brand-short-name }.
 install-failed-message = Ha fallado la instalación de { -brand-short-name } pero seguirá en ejecución.
+
+## Strings for a dialog that recommends to the user to start an existing
+## installation of the app in the Applications directory if one is detected,
+## rather than the app that was double-clicked in a .dmg.
+
+prompt-to-launch-existing-app-title = ¿Abrir la aplicación { -brand-short-name } existente?
+prompt-to-launch-existing-app-message = Ya tiene { -brand-short-name } instalado. Utilice la aplicación instalada para mantenerse al día y evitar la pérdida de datos.
+prompt-to-launch-existing-app-yes-button = Abrir existente
+prompt-to-launch-existing-app-no-button = No, gracias
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/et/browser/browser/aboutLogins.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/et/browser/browser/aboutLogins.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/et/browser/browser/aboutLogins.ftl	2021-10-17 14:45:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/et/browser/browser/aboutLogins.ftl	2021-10-20 19:32:05.000000000 +0000
@@ -4,15 +4,11 @@
 # NOTE: New strings should use the about-logins- prefix.
 
 about-logins-page-title = Kasutajatunnused ja paroolid
-
-# "Google Play" and "App Store" are both branding and should not be translated
-
 login-filter =
     .placeholder = Otsi kasutajakontosid
-
 create-login-button = Loo uus kasutajakonto
-
 fxaccounts-sign-in-text = Tee paroolid kättesaadavaks ka oma teistes seadmetes
+fxaccounts-sign-in-sync-button = Sünkroniseerimiseks logi sisse
 fxaccounts-avatar-button =
     .title = Halda kontot
 
@@ -44,6 +40,8 @@
 login-list-sort-label-text = Sortimine:
 login-list-name-option = nimi  (A-Y)
 login-list-name-reverse-option = nimi (Y-A)
+login-list-username-option = kasutajanimi (A-Y)
+login-list-username-reverse-option = kasutajanimi (Y-A)
 about-logins-login-list-alerts-option = Hoiatused
 login-list-last-changed-option = viimati muudetud
 login-list-last-used-option = viimati kasutatud
@@ -58,13 +56,22 @@
     .title = Kasutajatunnused lekitanud sait
 about-logins-list-item-vulnerable-password-icon =
     .title = Nõrk parool
+about-logins-list-section-breach = Kasutajatunnused lekitanud saidid
+about-logins-list-section-vulnerable = Nõrgad paroolid
+about-logins-list-section-nothing = Hoiatus puudub
+about-logins-list-section-today = Täna
+about-logins-list-section-yesterday = Eile
+about-logins-list-section-week = Viimased 7 päeva
 
 ## Introduction screen
 
+about-logins-login-intro-heading-logged-out2 = Kas otsid oma salvestatud kasutajatunnuseid? Lülita sünkrooniseerimine sisse või impordi need.
 about-logins-login-intro-heading-logged-in = Sünkrooniseeritud kasutajakontosid ei leitud.
 login-intro-description = Kui salvestasid oma kasutajakontod teises seadmes olevasse { -brand-product-name }i, siis nii saad need ka siia:
+login-intro-instructions-fxa = Loo { -fxaccount-brand-name } või logi sisse seadmes, kus salvestatud kasutajakontod on
+login-intro-instructions-fxa-settings = Ava Sätted > Sync > Lülita sünkroniseerimine sisse… Märgi linnukesega Kasutajatunnused ja paroolid.
+login-intro-instructions-fxa-help = Rohkema teabe saamiseks külasta <a data-l10n-name="help-link">{ -lockwise-brand-short-name }'i tugikeskkonda</a>.
 about-logins-intro-import = Kui sinu kasutajakontod on salvestatud teise brauserisse, siis saad need <a data-l10n-name="import-link">importida { -lockwise-brand-short-name }'i</a>
-
 about-logins-intro-import2 = Kui sinu kasutajakontod on salvestatud mujale kui { -brand-product-name }i, siis saad need <a data-l10n-name="import-browser-link">importida teisest brauserist</a> või <a data-l10n-name="import-file-link">failist</a>
 
 ## Login
@@ -106,21 +113,16 @@
 # This message can be seen when attempting to edit a login in about:logins
 # On MacOS, only provide the reason that account verification is needed. Do not put a complete sentence here.
 about-logins-edit-login-os-auth-dialog-message-macosx = edit the saved login
-
 # This message can be seen when attempting to reveal a password in about:logins on Windows.
 about-logins-reveal-password-os-auth-dialog-message-win = Parooli vaatamiseks sisesta Windowsi sisselogimisandmed. See aitab kaitsta sinu kontode turvalisust.
 # This message can be seen when attempting to reveal a password in about:logins
 # On MacOS, only provide the reason that account verification is needed. Do not put a complete sentence here.
 about-logins-reveal-password-os-auth-dialog-message-macosx = kuva salvestatud parooli
-
 # This message can be seen when attempting to copy a password in about:logins on Windows.
 about-logins-copy-password-os-auth-dialog-message-win = Parooli kopeerimiseks sisesta Windowsi sisselogimisandmed. See aitab kaitsta sinu kontode turvalisust.
 # This message can be seen when attempting to copy a password in about:logins
 # On MacOS, only provide the reason that account verification is needed. Do not put a complete sentence here.
 about-logins-copy-password-os-auth-dialog-message-macosx = copy the saved password
-
-## Master Password notification
-
 # This message can be seen when attempting to export a password in about:logins on Windows.
 about-logins-export-password-os-auth-dialog-message-win = Kasutajakontode eksportimiseks sisesta Windowsi sisselogimisandmed. See aitab kaitsta sinu kontode turvalisust.
 # This message can be seen when attempting to export a password in about:logins
@@ -134,32 +136,26 @@
     .label = Logi sisse
     .accesskey = L
 
-## Password Sync notification
-
 ## Dialogs
 
 confirmation-dialog-cancel-button = Loobu
 confirmation-dialog-dismiss-button =
     .title = Loobu
-
 about-logins-confirm-remove-dialog-title = Kas eemaldada see kasutajakonto?
 confirm-delete-dialog-message = Seda tegevust pole võimalik tagasi võtta.
 about-logins-confirm-remove-dialog-confirm-button = Eemalda
-
 about-logins-confirm-remove-all-dialog-confirm-button-label =
     { $count ->
         [1] Eemalda
         [one] Eemalda
        *[other] Eemalda kõik
     }
-
 about-logins-confirm-remove-all-dialog-checkbox-label =
     { $count ->
         [1] Jah, eemalda see konto
         [one] Jah, eemalda see konto
        *[other] Jah, eemalda need kontod
     }
-
 about-logins-confirm-remove-all-dialog-title =
     { $count ->
         [one] Kas eemaldada see konto?
@@ -171,7 +167,6 @@
         [one] See tegevus eemaldab selle kasutajakonto { -brand-short-name }ist ja kõik siin kuvatavad murdmishoiatused. Seda toimingut pole võimalik tagasi võtta.
        *[other] See tegevus eemaldab kasutajakontod { -brand-short-name }ist ja kõik siin kuvatavad murdmishoiatused. Seda toimingut pole võimalik tagasi võtta.
     }
-
 about-logins-confirm-remove-all-sync-dialog-title =
     { $count ->
         [one] Kas soovid eemaldada selle kasutajakonto kõigist seadmetest?
@@ -183,14 +178,11 @@
         [one] See tegevus eemaldab selle { -brand-short-name }i salvestadud kasutajakonto kõigist seadmetest, mis on ühendatud sinu { -fxaccount-brand-name }ga. Seda toimingut pole võimalik tagasi võtta.
        *[other] See tegevus eemaldab kõik { -brand-short-name }i salvestadud kasutajakontod kõigist seadmetest, mis on ühendatud sinu { -fxaccount-brand-name }ga. Seda toimingut pole võimalik tagasi võtta.
     }
-
 about-logins-confirm-export-dialog-title = Kasutajanimede ja paroolide eksportimine
 about-logins-confirm-export-dialog-message = Sinu paroolid salvestatakse loetava tekstina (nt HalbP@r00l), nii et kõik, kes saavad eksporditud faili avada, saavad neid vaadata.
 about-logins-confirm-export-dialog-confirm-button = Ekspordi...
-
 about-logins-alert-import-title = Importimine valmis
 about-logins-alert-import-message = Vaata impordiaruande üksikasju
-
 confirm-discard-changes-dialog-title = Kas soovid loobuda salvestamata muudatustest?
 confirm-discard-changes-dialog-message = Kõik salvestamata muudatused lähevad kaduma.
 confirm-discard-changes-dialog-confirm-button = Unusta
@@ -221,11 +213,9 @@
 # Variables:
 #   $loginTitle (String) - The title of the website associated with the login.
 about-logins-error-message-duplicate-login-with-link = Selle kasutajanimega kanne { $loginTitle } on juba olemas. <a data-l10n-name="duplicate-link">Kas soovid minna olemasoleva kande juurde?</a>
-
 # This is a generic error message.
 about-logins-error-message-default = Parooli salvestamisel esines viga.
 
-
 ## Login Export Dialog
 
 # Title of the file picker dialog
@@ -272,13 +262,11 @@
         [one] <span>Uus kasutajatunnus lisatud.</span>
        *[other] <span>Uusi kasutajatunnuseid lisatud:</span> <span data-l10n-name="count">{ $count }</span>
     }
-
 about-logins-import-dialog-items-modified =
     { $count ->
         [one] <span>Värskendati üht kasutajatunnust.</span>
        *[other] <span>Olemasolevaid kasutajatunnuseid värskendatud:</span> <span data-l10n-name="count">{ $count }</span>
     }
-
 about-logins-import-dialog-items-no-change =
     { $count ->
         [one] <span>Leiti üks korduv kasutajatunnus<span data-l10n-name="meta">(ei imporditud)</span>
@@ -290,7 +278,6 @@
        *[other] <span>Vigu:</span> <span data-l10n-name="count">{ $count }</span> <span data-l10n-name="meta">(ei imporditud)</span>
     }
 about-logins-import-dialog-done = Valmis
-
 about-logins-import-dialog-error-title = Viga importimisel
 about-logins-import-dialog-error-conflicting-values-title = Kasutajatunnusel leiti mitu vastuolus väärtust
 about-logins-import-dialog-error-conflicting-values-description = Näiteks: mitu kasutajanime, parooli, aadressi jne. ühe kasutajatunnuse kohta
@@ -302,17 +289,50 @@
 about-logins-import-dialog-error-unable-to-read-description = Veendu, et valisid CSV- või TSV-faili.
 about-logins-import-dialog-error-no-logins-imported = Ühtegi kasutajatunnust ei imporditud
 about-logins-import-dialog-error-learn-more = Rohkem teavet
+about-logins-import-dialog-error-try-import-again = Proovi uuesti importida…
 about-logins-import-dialog-error-cancel = Tühista
+about-logins-import-report-title = Importimise kokkuvõte
+about-logins-import-report-description = { -brand-short-name }i imporditud kasutajatunnused ja paroolid.
+#
+# Variables:
+#  $number (number) - The number of the row
+about-logins-import-report-row-index = Rida { $number }
+about-logins-import-report-row-description-no-change = Duplikaat: olemasoleva kasutajakonto täpne koopia
+about-logins-import-report-row-description-modified = Olemasolev kasutajatunnus uuendati
+about-logins-import-report-row-description-added = Lisati uus kasutajatunnus
+about-logins-import-report-row-description-error = Viga: väli puudub
 
 ##
 ## Variables:
 ##  $field (String) - The name of the field from the CSV file for example url, username or password
 
+about-logins-import-report-row-description-error-multiple-values = Viga: mitu väärtust väljale { $field }
+about-logins-import-report-row-description-error-missing-field = Viga: väli { $field } puudub
 
 ##
 ## Variables:
 ##  $count (number) - The number of affected elements
 
+about-logins-import-report-added =
+    { $count ->
+        [one] <div data-l10n-name="count">{ $count }</div> <div data-l10n-name="details">uus kasutajakonto lisatud</div>
+       *[other] <div data-l10n-name="count">{ $count }</div> <div data-l10n-name="details">uut kasutajakontot lisatud</div>
+    }
+about-logins-import-report-modified =
+    { $count ->
+        [one] <div data-l10n-name="count">{ $count }</div> <div data-l10n-name="details">olemasolev kasutajakonto uuendati</div>
+       *[other] <div data-l10n-name="count">{ $count }</div> <div data-l10n-name="details">olemasolevat kasutajakontot uuendati</div>
+    }
+about-logins-import-report-no-change =
+    { $count ->
+        [one] <div data-l10n-name="count">{ $count }</div> <div data-l10n-name="details">duplikaat</div> <div data-l10n-name="not-imported">(ei imporditud)</div>
+       *[other] <div data-l10n-name="count">{ $count }</div> <div data-l10n-name="details">duplikaati</div> <div data-l10n-name="not-imported">(ei imporditud)</div>
+    }
+about-logins-import-report-error =
+    { $count ->
+        [one] <div data-l10n-name="count">{ $count }</div> <div data-l10n-name="details">viga</div> <div data-l10n-name="not-imported">(ei imporditud)</div>
+       *[other] <div data-l10n-name="count">{ $count }</div> <div data-l10n-name="details">viga</div> <div data-l10n-name="not-imported">(ei imporditud)</div>
+    }
 
 ## Logins import report page
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/eu/toolkit/toolkit/about/aboutProcesses.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/eu/toolkit/toolkit/about/aboutProcesses.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/eu/toolkit/toolkit/about/aboutProcesses.ftl	2021-10-17 14:45:55.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/eu/toolkit/toolkit/about/aboutProcesses.ftl	2021-10-20 19:32:11.000000000 +0000
@@ -128,7 +128,7 @@
 
 # Common case.
 about-processes-cpu = { NUMBER($percent, maximumSignificantDigits: 2, style: "percent") }
-    .title = PUZ denbora guztira: { NUMBER($total, maximumFractionDigits: 0) }
+    .title = PUZ denbora guztira: { NUMBER($total, maximumFractionDigits: 0) }{ $unit }
 # Special case: data is not available yet.
 about-processes-cpu-user-and-kernel-not-ready = (neurtzen)
 # Special case: process or thread is currently idle.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/appExtensionFields.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/appExtensionFields.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/appExtensionFields.ftl	2021-10-17 14:45:58.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/appExtensionFields.ftl	2021-10-20 19:32:17.000000000 +0000
@@ -5,6 +5,9 @@
 
 ## Theme names and descriptions used in the Themes panel in about:addons
 
+# "Auto" is short for automatic. It can be localized without limitations.
+extension-default-theme-name-auto = تم سیستم - خودکار
+extension-default-theme-description = استفاده از تنظیمات سیستم‌عامل برای دکمه‌ها، منوها و پنجره‌ها.
 extension-firefox-compact-light-name = روشن
 extension-firefox-compact-light-description = یک تم با زمینهٔ رنگی روشن.
 extension-firefox-compact-dark-name = تاریک
@@ -18,3 +21,8 @@
 ## Variables
 ##   $colorway-name (String) The name of a colorway (e.g. Graffiti, Elemental).
 
+extension-colorways-soft-name = { $colorway-name } — ملایم
+extension-colorways-balanced-name = { $colorway-name } — متعادل
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+extension-colorways-bold-name = { $colorway-name } — پُررنگ
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/appmenu.ftl	2021-10-17 14:45:58.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/appmenu.ftl	2021-10-20 19:32:17.000000000 +0000
@@ -118,6 +118,12 @@
 profiler-popup-button-idle =
     .label = پروفایلر
     .tooltiptext = ضبط نمایهٔ عملکرد
+profiler-popup-button-recording =
+    .label = پروفایلر
+    .tooltiptext = پ
+profiler-popup-button-capturing =
+    .label = پروفایلر
+    .tooltiptext = پروفایلر در حال ضبط یک نمایه است
 profiler-popup-title =
     .value = { -profiler-brand-name }
 profiler-popup-reveal-description-button =
@@ -168,6 +174,16 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
+profiler-popup-presets-web-developer-label =
+    .label = توسعه‌دهنده وب
+profiler-popup-presets-firefox-platform-label =
+    .label = پلتفرم Firefox
+profiler-popup-presets-firefox-graphics-label =
+    .label = گرافیک Firefox
+profiler-popup-presets-media-label =
+    .label = رسانه
+profiler-popup-presets-custom-label =
+    .label = سفارشی
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/customizeMode.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/customizeMode.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/customizeMode.ftl	2021-10-17 14:45:58.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/customizeMode.ftl	2021-10-20 19:32:17.000000000 +0000
@@ -41,6 +41,7 @@
     .label = برگردان
 customize-mode-lwthemes-my-themes =
     .value = تم‌های من
+customize-mode-lwthemes-link = مدیریت تم‌ها
 customize-mode-touchbar-cmd =
     .label = تنظیم کردن نوار لمسی…
 customize-mode-downloads-button-autohide =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/newtab/asrouter.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/newtab/asrouter.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/newtab/asrouter.ftl	2021-10-17 14:45:58.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/newtab/asrouter.ftl	2021-10-20 19:32:17.000000000 +0000
@@ -117,3 +117,5 @@
 ## bit of info about how to improve their privacy and then offered a button
 ## to the Mozilla VPN page and a link to dismiss the dialog.
 
+spotlight-public-wifi-vpn-link = اکنون نه
+    .accesskey = ن
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/newtab/newtab.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/newtab/newtab.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/newtab/newtab.ftl	2021-10-17 14:45:58.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/newtab/newtab.ftl	2021-10-20 19:32:17.000000000 +0000
@@ -20,7 +20,6 @@
 newtab-search-box-search-button =
     .title = جستجو
     .aria-label = جستجو
-
 # Variables
 #  $engine (String): the name of the user's default search engine
 newtab-search-box-handoff-text = با { $engine } جستجو یا آدرسی وارد کنید
@@ -35,12 +34,10 @@
     .placeholder = عبارتی برای جست‌وجو یا یک آدرس وارد کنید
     .title = عبارتی برای جست‌وجو یا یک آدرس وارد کنید
     .aria-label = عبارتی برای جست‌وجو یا یک آدرس وارد کنید
-
 newtab-search-box-search-the-web-input =
     .placeholder = جستجوی وب
     .title = جستجوی وب
     .aria-label = جستجوی وب
-
 newtab-search-box-text = جست‌وجو در وب
 newtab-search-box-input =
     .placeholder = جستجو در وب
@@ -56,12 +53,10 @@
 newtab-topsites-title-label = عنوان
 newtab-topsites-title-input =
     .placeholder = عنوان را وارد کنید
-
 newtab-topsites-url-label = نشانی
 newtab-topsites-url-input =
     .placeholder = یک نشانی بنویسید یا بچسبانید
 newtab-topsites-url-validation = نشانی معتبر الزامی است
-
 newtab-topsites-image-url-label = نشانیِ سفارشی عکس
 newtab-topsites-use-image-link = استفاده از یک عکس سفارشی…
 newtab-topsites-image-validation = بارگیری عکس شکست خورد. آدرس دیگری امتحان کنید.
@@ -90,12 +85,10 @@
 newtab-menu-section-tooltip =
     .title = باز کردن منو
     .aria-label = باز کردن منو
-
 # Tooltip for dismiss button
 newtab-dismiss-button-tooltip =
     .title = حذف
     .aria-label = حذف
-
 # This tooltip is for the context menu of Pocket cards or Topsites
 # Variables:
 #  $title (String): The label or hostname of the site. This is for screen readers when the context menu button is focused/active.
@@ -163,12 +156,10 @@
 newtab-label-recommended = موضوعات داغ
 newtab-label-saved = در { -pocket-brand-name } ذخیره شد
 newtab-label-download = دریافت شد
-
 # This string is used in the story cards to indicate sponsored content
 # Variables:
 #  $sponsorOrSource (String): This is the name of a company or their domain
 newtab-label-sponsored = { $sponsorOrSource } · حمایت مالی شده
-
 # This string is used at the bottom of story cards to indicate sponsored content
 # Variables:
 #  $sponsor (String): This is the name of a sponsor
@@ -207,7 +198,6 @@
 ## Empty Section States: These show when there are no more items in a section. Ex. When there are no more Pocket story recommendations, in the space where there would have been stories, this is shown instead.
 
 newtab-empty-section-highlights = مرور کردن را شروع کنید و شاهد تعداد زیادی مقاله، فیلم و صفحات خوبی باشید که اخیر مشاهده کرده اید یا نشانگ گذاری کرده اید.
-
 # Ex. When there are no more Pocket story recommendations, in the space where there would have been stories, this is shown instead.
 # Variables:
 #  $provider (String): Name of the content provider for this section, e.g "Pocket".
@@ -230,6 +220,14 @@
 newtab-pocket-learn-more = اطلاعات بیشتر
 newtab-pocket-cta-button = دریافت { -pocket-brand-name }
 newtab-pocket-cta-text = مطالبی که دوست دارید را در { -pocket-brand-name } ذخیره کنید، و به ذهن خود با مطالب فوق‌العاده انرژی بدهید.
+# A save to Pocket button that shows over the card thumbnail on hover.
+newtab-pocket-save-to-pocket = ذخیره در { -pocket-brand-name }
+newtab-pocket-saved-to-pocket = در ‌{ -pocket-brand-name } ذخیره شده
+
+## Pocket Final Card Section.
+## This is for the final card in the Pocket grid.
+
+newtab-pocket-last-card-desc = برای مطالب بیشتر بعدا دوباره سر بزنید.
 
 ## Error Fallback Content.
 ## This message and suggested action link are shown in each section of UI that fails to render.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/newtab/onboarding.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/newtab/onboarding.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/newtab/onboarding.ftl	2021-10-17 14:45:58.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/newtab/onboarding.ftl	2021-10-20 19:32:17.000000000 +0000
@@ -3,18 +3,6 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 
-### UI strings for the simplified onboarding modal / about:welcome
-### Various strings use a non-breaking space to avoid a single dangling /
-### widowed word, so test on various window sizes if you also want this.
-
-
-## These button action text can be split onto multiple lines, so use explicit
-## newlines in translations to control where the line break appears (e.g., to
-## avoid breaking quoted text).
-
-## Welcome modal dialog strings
-
-
 ### UI strings for the simplified onboarding / multistage about:welcome
 ### Various strings use a non-breaking space to avoid a single dangling /
 ### widowed word, so test on various window sizes if you also want this.
@@ -29,25 +17,6 @@
 
 onboarding-welcome-header = به { -brand-short-name } خوش آمدید
 onboarding-start-browsing-button-label = شروع وب‌گردی
-
-## Welcome full page string
-
-## Firefox Sync modal dialog strings.
-
-## This is part of the line "Enter your email to continue to Firefox Sync"
-
-## These are individual benefit messages shown with an image, title and
-## description.
-
-## These strings belong to the individual onboarding messages.
-
-
-## Each message has a title and a description of what the browser feature is.
-## Each message also has an associated button for the user to try the feature.
-## The string for the button is found above, in the UI strings section
-
-## Message strings belonging to the Return to AMO flow
-
 onboarding-not-now-button-label = اکنون نه
 
 ## Custom Return To AMO onboarding strings
@@ -69,14 +38,12 @@
 onboarding-multistage-welcome-primary-button-label = شروع راه‌اندازی
 onboarding-multistage-welcome-secondary-button-label = ورود
 onboarding-multistage-welcome-secondary-button-text = حساب دارید؟
-
 # The <span data-l10n-name="zap"></span> in this string allows a "zap" underline style to be
 # automatically added to the text inside it. "default" should stay inside the span.
 onboarding-multistage-set-default-header = { -brand-short-name } را <span data-l10n-name="zap">پیش‌فرض</span> خود قرار دهید
 onboarding-multistage-set-default-subtitle = سرعت، ایمنی و حریم خصوصی هر بار که وب را مرور می‌کنید.
 onboarding-multistage-set-default-primary-button-label = تنظیم به عنوان پیش‌فرض
 onboarding-multistage-set-default-secondary-button-label = اکنون نه
-
 # The <span data-l10n-name="zap"></span> in this string allows a "zap" underline style to be
 # automatically added to the text inside it. { -brand-short-name } should stay inside the span.
 onboarding-multistage-pin-default-header = با <span data-l10n-name="zap">{ -brand-short-name }</span> فقط یک کلیک فاصله داشته باشید
@@ -86,14 +53,12 @@
 # The "settings" here refers to "Windows 10 Settings App" and not the browser's
 onboarding-multistage-pin-default-help-text = این کار { -brand-short-name } را به نوار وظیفه سنجاق و تنظیمات را باز می‌کند
 onboarding-multistage-pin-default-primary-button-label = { -brand-short-name } مرورگر اصلی من شود
-
 # The <span data-l10n-name="zap"></span> in this string allows a "zap" underline style to be
 # automatically added to the text inside it. "more" should stay inside the span.
 onboarding-multistage-import-header = گذرواژه‌ها، <br/>نشانک‌ها و <span data-l10n-name="zap">بیشتر</span> را درون‌ریزی کنید
 onboarding-multistage-import-subtitle = از مرورگر دیگری می‌آیید؟ به سادگی تمام اطلاعات خود را به { -brand-short-name } بیاورید.
 onboarding-multistage-import-primary-button-label = شروع وارد کردن
 onboarding-multistage-import-secondary-button-label = اکنون نه
-
 # Info displayed in the footer of import settings screen during onboarding flow.
 # This supports welcome screen showing top sites imported from the user's default browser.
 onboarding-import-sites-disclaimer = سایتهای ذکر شده در اینجا در این دستگاه یافت شدند. { -brand-short-name } داده‌ها را از مرورگرهای دیگر ذخیره یا همگام‌سازی نمی‌کند مگر اینکه این اطلاعات را درون‌ریزی کنید.
@@ -106,22 +71,18 @@
 #   $total (Int) - Total number of pages
 onboarding-welcome-steps-indicator =
     .aria-label = راه‌اندازی: صفحهٔ { $current } از { $total }
-
 # The <span data-l10n-name="zap"></span> in this string allows a "zap" underline style to be
 # automatically added to the text inside it. "look" should stay inside the span.
 onboarding-multistage-theme-header = <span data-l10n-name="zap">ظاهر</span> را انتخاب کنید
 onboarding-multistage-theme-subtitle = { -brand-short-name } را با یک تم سفارشی کنید.
 onboarding-multistage-theme-primary-button-label2 = انجام شد
 onboarding-multistage-theme-secondary-button-label = اکنون نه
-
 # Automatic theme uses operating system color settings
 onboarding-multistage-theme-label-automatic = خودکار
-
 onboarding-multistage-theme-label-light = تاریک
 onboarding-multistage-theme-label-dark = روشن
 # "Firefox Alpenglow" here is the name of the theme, and should be kept in English.
 onboarding-multistage-theme-label-alpenglow = Firefox Alpenglow
-
 # "Hero Text" displayed on left side of welcome screen.
 # The "Fire" in "Fire starts here" plays on the "Fire" in "Firefox".
 # It also signals the passion users bring to Firefox, how they use
@@ -132,13 +93,11 @@
 mr1-welcome-screen-hero-text =
     آتش اینجا
     شروع می‌شود
-
 # Caption for background image in about:welcome. "Soraya Osorio" is the name
 # of the person and shouldn't be translated.
 # In case your language needs to adapt the nouns to a gender, Soraya is a female name (she/her).
 # You can see the picture in about:welcome in Nightly 90.
 mr1-onboarding-welcome-image-caption = ثریا اوزوریو — طراح مبلمان، طرفدار Firefox
-
 # This button will open system settings to turn on prefers-reduced-motion
 mr1-onboarding-reduce-motion-button-label = خاموش کردن انیمیشن‌ها
 
@@ -164,11 +123,9 @@
 # This string will be used on welcome page primary button label
 # when Firefox is both pinned and default
 mr1-onboarding-get-started-primary-button-label = شروع کنید
-
 mr1-onboarding-welcome-header = به { -brand-short-name } خوش آمدید
 mr1-onboarding-set-default-pin-primary-button-label = { -brand-short-name } مرورگر اصلی من شود
     .title = { -brand-short-name } رو مرورگر پیش‌فرض و به نوار وظیفه سنجاق می‌کند
-
 # This string will be used on welcome page primary button label
 # when Firefox is not default but already pinned
 mr1-onboarding-set-default-only-primary-button-label = { -brand-short-name } را مرورگر پیش فرض من کن
@@ -186,24 +143,32 @@
 
 mr1-onboarding-import-header = همه را با خودت بیار
 mr1-onboarding-import-subtitle = گذرواژه‌ها، <br/>نشانک‌ها و موارد دیگر را درون‌ریزی کنید.
-
 # The primary import button label will depend on whether we can detect which browser was used to download Firefox.
 # Variables:
 #   $previous (Str) - Previous browser name, such as Edge, Chrome
 mr1-onboarding-import-primary-button-label-attribution = وارد کردن از { $previous }
-
 # This string will be used in cases where we can't detect the previous browser name.
 mr1-onboarding-import-primary-button-label-no-attribution = وارد کردن از مرورگر قبلی
 mr1-onboarding-import-secondary-button-label = اکنون نه
-
+mr2-onboarding-colorway-header = زندگی با رنگ‌ها
+mr2-onboarding-colorway-subtitle = رنگ‌بندی‌هایِ جدید و با طراوت. در دسترس برای مدتی محدود.
+mr2-onboarding-colorway-primary-button-label = ذخیره رنگ‌بندی
+mr2-onboarding-colorway-secondary-button-label = اکنون نه
+mr2-onboarding-colorway-label-soft = ملایم
+mr2-onboarding-colorway-label-balanced = متعادل
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+mr2-onboarding-colorway-label-bold = پُررنگ
+# Automatic theme uses operating system color settings
+mr2-onboarding-theme-label-auto = خودکار
+# This string will be used for Default theme
+mr2-onboarding-theme-label-default = پیش‌فرض
 mr1-onboarding-theme-header = مختص خودتان سفارشی کنید
 mr1-onboarding-theme-subtitle = { -brand-short-name } را با یک تم سفارشی کنید.
 mr1-onboarding-theme-primary-button-label = ذخیرهٔ تم
 mr1-onboarding-theme-secondary-button-label = اکنون نه
-
 # System theme uses operating system color settings
 mr1-onboarding-theme-label-system = تم سیستم
-
 mr1-onboarding-theme-label-light = روشن
 mr1-onboarding-theme-label-dark = تاریک
 # "Alpenglow" here is the name of the theme, and should be kept in English.
@@ -225,43 +190,36 @@
     .title =
         استفاده از ظاهر سیستم‌عامل
         برای دکمه‌ها، منوها و پنجره‌ها.
-
 # Input description for automatic theme
 onboarding-multistage-theme-description-automatic-2 =
     .aria-description =
         استفاده از ظاهر سیستم‌عامل
         برای دکمه‌ها، منوها و پنجره‌ها.
-
 # Tooltip displayed on hover of light theme
 onboarding-multistage-theme-tooltip-light-2 =
     .title =
         استفاده از تم روشن برای
         دکمه‌ها، منوها و پنجره‌ها.
-
 # Input description for light theme
 onboarding-multistage-theme-description-light =
     .aria-description =
         استفاده از تم روشن برای
         دکمه‌ها، منوها و پنجره‌ها.
-
 # Tooltip displayed on hover of dark theme
 onboarding-multistage-theme-tooltip-dark-2 =
     .title =
         استفاده از تم تاریک برای
         دکمه‌ها، منوها و پنجره‌ها.
-
 # Input description for dark theme
 onboarding-multistage-theme-description-dark =
     .aria-description =
         استفاده از تم تاریک برای
         دکمه‌ها، منوها و پنجره‌ها.
-
 # Tooltip displayed on hover of Alpenglow theme
 onboarding-multistage-theme-tooltip-alpenglow-2 =
     .title =
         استفاده از تم رنگی برای
         دکمه‌ها، منوها و پنجره‌ها.
-
 # Input description for Alpenglow theme
 onboarding-multistage-theme-description-alpenglow =
     .aria-description =
@@ -275,45 +233,67 @@
     .title =
         استفاده از ظاهر سیستم‌عامل
         برای دکمه‌ها، منوها و پنجره‌ها.
-
 # Input description for system theme
 mr1-onboarding-theme-description-system =
     .aria-description =
         استفاده از ظاهر سیستم‌عامل
         برای دکمه‌ها، منوها و پنجره‌ها.
-
 # Tooltip displayed on hover of light theme
 mr1-onboarding-theme-tooltip-light =
     .title =
         استفاده از تم روشن برای
         دکمه‌ها، منوها و پنجره‌ها.
-
 # Input description for light theme
 mr1-onboarding-theme-description-light =
     .aria-description =
         استفاده از تم روشن برای
         دکمه‌ها، منوها و پنجره‌ها.
-
 # Tooltip displayed on hover of dark theme
 mr1-onboarding-theme-tooltip-dark =
     .title =
         استفاده از تم تاریک برای
         دکمه‌ها، منوها و پنجره‌ها.
-
 # Input description for dark theme
 mr1-onboarding-theme-description-dark =
     .aria-description =
         استفاده از تم تاریک برای
         دکمه‌ها، منوها و پنجره‌ها.
-
 # Tooltip displayed on hover of Alpenglow theme
 mr1-onboarding-theme-tooltip-alpenglow =
     .title =
         استفاده از تم پویا و رنگی
         برای دکمه‌ها، منوها و پنجره‌ها.
-
 # Input description for Alpenglow theme
 mr1-onboarding-theme-description-alpenglow =
     .aria-description =
         استفاده از تم پویا و رنگی
         برای دکمه‌ها، منوها و پنجره‌ها.
+# Tooltip displayed on hover of non-default colorway theme
+# variations e.g. soft, balanced, bold
+mr2-onboarding-theme-tooltip =
+    .title = استفاده از این رنگ‌بندی.
+# Selector description for non-default colorway theme
+# variations e.g. soft, balanced, bold
+mr2-onboarding-theme-description =
+    .aria-description = استفاده از این رنگ‌بندی.
+# Tooltip displayed on hover of colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-tooltip =
+    .title = بررسی رنگ‌بندی { $colorwayName }.
+# Selector description for colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-description =
+    .aria-description = استفاده از رنگ‌بندی { $colorwayName }.
+# Tooltip displayed on hover of default themes
+mr2-onboarding-default-theme-tooltip =
+    .title = بررسی تم‌های پیش‌فرض.
+# Selector description for default themes
+mr2-onboarding-default-theme-description =
+    .aria-description = بررسی تم‌های پیش‌فرض.
+
+## Strings for Thank You page
+
+mr2-onboarding-thank-you-header = از اینکه ما را انتخاب کردید، متشکریم
+mr2-onboarding-start-browsing-button-label = شروع به مرور اینترنت کنید
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/places.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/places.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/places.ftl	2021-10-17 14:45:58.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/places.ftl	2021-10-20 19:32:17.000000000 +0000
@@ -79,6 +79,16 @@
            *[other] حذف پوشه‌ها
         }
     .accesskey = ح
+places-edit-folder2 =
+    .label = ویرایش پوشه…
+    .accesskey = و
+places-delete-folder =
+    .label =
+        { $count ->
+            [1] حذف پوشه
+           *[other] حذف پوشه‌ها
+        }
+    .accesskey = ح
 # Managed bookmarks are created by an administrator and cannot be changed by the user.
 managed-bookmarks =
     .label = نشانک‌های مدیریت شده
@@ -97,9 +107,22 @@
            *[other] حذف نشانک‌ها
         }
     .accesskey = e
+places-show-in-folder =
+    .label = نمایش در پوشه
+    .accesskey = ن
+# Variables:
+# $count (number) - The number of elements being selected for removal.
+places-delete-bookmark =
+    .label =
+        { $count ->
+            [1] حذف نشانک
+           *[other] حذف نشانک‌ها
+        }
+    .accesskey = ح
 places-manage-bookmarks =
     .label = مدیریت نشانک‌ها
     .accesskey = M
+places-forget-about-this-site-forget = فراموش کن
 places-library =
     .title = مخزن
     .style = width:700px; height:500px;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/protections.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/protections.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/browser/protections.ftl	2021-10-17 14:45:58.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/browser/protections.ftl	2021-10-20 19:32:17.000000000 +0000
@@ -24,6 +24,12 @@
 graph-week-summary-private-window = ردیاب‌هایی که { -brand-short-name } در این هفته مسدود کرده
 protection-report-webpage-title = تابلوی محافظت‌ها
 protection-report-page-content-title = تابلوی محافظت‌ها
+protection-report-settings-link = تنظیمات حریم خصوصی و امنیت خود را مدیریت کنید
+etp-card-title-always = محافظت پیشرفته در برابر ردیابی: همیشه روشن
+etp-card-title-custom-not-blocking = محافظت پیشرفته در برابر ردیابی: خاموش
+etp-card-content-description = { -brand-short-name } به طور خودکار شرکت‌ها را از پیگیری مخفیانه شما در سراسر وب منع می‌کند.
+protection-report-etp-card-content-custom-not-blocking = در حال حاضر همه محافظت‌ها خاموش هستند. با مدیریت تنظیمات حفاظت‌های { -brand-short-name }، انتخاب کنید کدام ردیاب‌ها را مسدود شوند.
+protection-report-manage-protections = مدیریت تنظیمات
 # This string is used to label the X axis of a graph. Other days of the week are generated via Intl.DateTimeFormat,
 # capitalization for this string should match the output for your locale.
 graph-today = امروز
@@ -31,12 +37,23 @@
 cookie-tab-title = کوکی‌هایِ ردیابِ بین‌پایگاهی
 cookie-tab-content = این کوکی‌ها از سایتی به سایتی دیگر شما را دنبال می‌کنند تا اطلاعات مربوط به کارهایی که آنلاین انجام می‌دهید را جمع‌آوری کنند. آنها توسط اشخاص ثالث مانند تبلیغ کنندگان و شرکت های تجزیه و تحلیل داده تولید و تنظیم می‌شوند. مسدود کردن کوکی‌های ردیابی بین پایگاهی، تعداد تبلیغاتی را که شما را دنبال می کنند، کاهش می‌دهد. <a data-l10n-name="learn-more-link">بیشتر بیاموزید</a>
 tracker-tab-title = محتوای ردیابی کننده
+fingerprinter-tab-title = برداشت کنندگان اثر انگشت
 cryptominer-tab-title = استخراج کننده‌های رمزارزها
+protections-close-button2 =
+    .aria-label = بستن
+    .title = بستن
 lockwise-title = هرگز گذرواژه را فراموش نکن
+lockwise-title-logged-in2 = مدیریت گذرواژه‌ها
 lockwise-header-content = { -lockwise-brand-name } گذرواژه‌های شما را به صورت امن در مرورگر ذخیره می‌کند.
 lockwise-header-content-logged-in = ذخیره امن گذرواژه‌ها و همگام‌سازی با تمام دستگاه های شما.
+protection-report-save-passwords-button = ذخیره گذرواژه‌ها
+    .title = ذخیره گذرواژه‌ها در { -lockwise-brand-short-name }
+protection-report-manage-passwords-button = مدیریت گذرواژه‌ها
+    .title = مدیریت گذرواژه‌ها در { -lockwise-brand-short-name }
 monitor-title = مواضب نشت اطلاعات باشید
 monitor-link = چگونه کار می‌کند
+monitor-header-content-no-account = { -monitor-brand-name } را بررسی کنید تا ببینید آیا تاکنون بخشی از نشت‌های اطلاعاتی شناخته شده بوده‌اید یا خیر، و در مورد نشت‌های جدید هشدار دریافت نمایید.
+monitor-header-content-signed-in = { -monitor-brand-name } اگر اطلاعات شما در نشت‌های اطلاعاتی شناخته شده باشد، به شما هشدار می‌دهد.
 
 ## The title attribute is used to display the type of protection.
 ## The aria-label is spoken by screen readers to make the visual graph accessible to blind users.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/chrome/overrides/netError.dtd firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/chrome/overrides/netError.dtd
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/browser/chrome/overrides/netError.dtd	2021-10-17 14:45:58.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/browser/chrome/overrides/netError.dtd	2021-10-20 19:32:17.000000000 +0000
@@ -102,9 +102,16 @@
 <!ENTITY blockedByPolicy.title "صفحهٔ مسدود شده">
 
 <!ENTITY certerror.mitm.whatCanYouDoAboutIt2 "اگر درون یک شبکه سازمانی هستید، می توانید با واحد آی‌تی خود تماس بگیرید.">
+<!ENTITY certerror.mitm.whatCanYouDoAboutIt3 "اگر با <span class='mitm-name'/> آشنایی ندارید، این ممکن است یک حمله باشد و نباید وارد این سایت شوید.">
+<!ENTITY certerror.mitm.sts.whatCanYouDoAboutIt3 "اگر با <span class='mitm-name'/> آشنا نیستید، این می‌تواند یک حمله باشد و برای دسترسی به این سایت کاری نمی‌توانید انجام دهید.">
 
+<!ENTITY clockSkewError.longDesc "رایانه شما فکر می‌کند زمان کنونی <span id='wrongSystemTime_systemDate1'/> است، که امکان اتصال امن را از &brandShortName; می‌گیرد. برای مشاهده <span class='hostname'></span>، تاریخ، ساعت و منطقه زمانی رایانه خود را از طریق تنظیمات سیستم اصلاح کنید، و سپس <span class='hostname'></span> را نوسازی کنید.">
 
 <!ENTITY prefReset.longDesc "به نظر می‌رسد تنظیمات امنیتی شبکه شما ممکن است باعث این شده باشند. آیا می‌خواهید که تنظیمات پیش‌فرض دوباره تنظیم شوند؟">
 <!ENTITY prefReset.label "بازگردانی تنظیمات پیش‌فرض">
 
+<!ENTITY enableTls10.longDesc "ممکن است این وب سایت از پروتکل امنیت لایه انتقال TLS 1.2 که حداقل نسخه پشتیبانی شده در &brandShortName; است پشتیبانی نمی‌کند. فعال کردن پروتکل امنیت لایه 1.0 و 1.1 ممکن است باعث موفقیت این اتصال شود.">
+<!ENTITY enableTls10.note "نسخه‌های 1.0 و 1.1 TLS در انتشارهای آینده به صورت دائمی غیرفعال خواهند شد.">
+<!ENTITY enableTls10.label "فعال کردن TLS 1.0 و 1.1">
 
+<!ENTITY networkProtocolError.longDesc "<p>صفحه‌ای که می‌خواهید مشاهده کنید به خاطر خطایی که در پروتکل شبکه شناسایی شده قابل نمایش نیست.</p><ul><li>لطفا با مالک وب سایت تماس بگیرید تا آنها را درباره این مشکل مطلع سازید.</li></ul>">
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/toolkit/chrome/global/global-extension-fields.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/toolkit/chrome/global/global-extension-fields.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fa/toolkit/chrome/global/global-extension-fields.properties	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fa/toolkit/chrome/global/global-extension-fields.properties	2021-10-20 19:32:17.000000000 +0000
@@ -0,0 +1,6 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# LOCALIZATION NOTE (extension.default-theme@mozilla.org.name, extension.default-theme@mozilla.org.description): This is displayed in about:addons -> Appearance
+extension.default-theme@mozilla.org.name=پوسته سیستم
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fi/browser/browser/browser.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fi/browser/browser/browser.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fi/browser/browser/browser.ftl	2021-10-17 14:46:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fi/browser/browser/browser.ftl	2021-10-20 19:32:29.000000000 +0000
@@ -770,3 +770,7 @@
 tabs-toolbar-list-all-tabs =
     .label = Listaa kaikki välilehdet
     .tooltiptext = Listaa kaikki välilehdet
+
+## Infobar shown at startup to suggest session-restore
+
+restore-session-startup-suggestion-button = Näytä ohje
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fi/dom/chrome/dom/dom.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/fi/dom/chrome/dom/dom.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fi/dom/chrome/dom/dom.properties	2021-10-17 14:46:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fi/dom/chrome/dom/dom.properties	2021-10-20 19:32:29.000000000 +0000
@@ -421,3 +421,6 @@
 ElementReleaseCaptureWarning=Element.releaseCapture() is deprecated. Use Element.releasePointerCapture() instead. For more help https://developer.mozilla.org/docs/Web/API/Element/releasePointerCapture
 # LOCALIZATION NOTE: Do not translate "Document.releaseCapture()" and "Element.releasePointerCapture()".
 DocumentReleaseCaptureWarning=Document.releaseCapture() is deprecated. Use Element.releasePointerCapture() instead. For more help https://developer.mozilla.org/docs/Web/API/Element/releasePointerCapture
+
+# LOCALIZATION NOTE: Don't translate browser.runtime.lastError, %S is the error message from the unchecked value set on browser.runtime.lastError.
+WebExtensionUncheckedLastError=browser.runtime.lastError value was not checked: %S
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/appExtensionFields.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/appExtensionFields.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/appExtensionFields.ftl	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/appExtensionFields.ftl	2021-10-20 19:32:39.000000000 +0000
@@ -25,4 +25,4 @@
 extension-colorways-balanced-name = { $colorway-name } — Équilibré
 # "Bold" is used in the sense of bravery or courage, not in the sense of
 # emphasized text.
-extension-colorways-bold-name = { $colorway-name } — Éclatant
+extension-colorways-bold-name = { $colorway-name } — Soutenu
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/appmenu.ftl	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/appmenu.ftl	2021-10-20 19:32:39.000000000 +0000
@@ -175,6 +175,9 @@
 profiler-popup-presets-firefox-platform-description = Réglage recommandé pour le débogage interne de la plateforme Firefox.
 profiler-popup-presets-firefox-platform-label =
     .label = Plateforme Firefox
+profiler-popup-presets-firefox-front-end-description = Réglage recommandé pour le débogage interne de l’interface Firefox.
+profiler-popup-presets-firefox-front-end-label =
+    .label = Interface Firefox
 profiler-popup-presets-firefox-graphics-description = Réglage recommandé pour l’étude des performances graphiques de Firefox.
 profiler-popup-presets-firefox-graphics-label =
     .label = Performances graphiques de Firefox
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/newtab/newtab.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/newtab/newtab.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/newtab/newtab.ftl	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/newtab/newtab.ftl	2021-10-20 19:32:39.000000000 +0000
@@ -238,6 +238,9 @@
 ## This is for the final card in the Pocket grid.
 
 newtab-pocket-last-card-title = Vous avez fait le tour !
+newtab-pocket-last-card-desc = Revenez plus tard pour découvrir plus de contenu.
+newtab-pocket-last-card-image =
+    .alt = Vous avez fait le tour !
 
 ## Error Fallback Content.
 ## This message and suggested action link are shown in each section of UI that fails to render.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/newtab/onboarding.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/newtab/onboarding.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/newtab/onboarding.ftl	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/newtab/onboarding.ftl	2021-10-20 19:32:39.000000000 +0000
@@ -148,11 +148,15 @@
 # This string will be used in cases where we can't detect the previous browser name.
 mr1-onboarding-import-primary-button-label-no-attribution = Importer depuis un autre navigateur
 mr1-onboarding-import-secondary-button-label = Plus tard
+mr2-onboarding-colorway-header = La vie en couleur
 mr2-onboarding-colorway-subtitle = De nouveaux coloris somptueux. Disponibles pendant une durée limitée.
 mr2-onboarding-colorway-primary-button-label = Enregistrer le coloris
 mr2-onboarding-colorway-secondary-button-label = Plus tard
 mr2-onboarding-colorway-label-soft = Doux
 mr2-onboarding-colorway-label-balanced = Équilibré
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+mr2-onboarding-colorway-label-bold = Soutenu
 # Automatic theme uses operating system color settings
 mr2-onboarding-theme-label-auto = Automatique
 # This string will be used for Default theme
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/places.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/places.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/places.ftl	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/places.ftl	2021-10-20 19:32:39.000000000 +0000
@@ -109,6 +109,9 @@
            *[other] Supprimer les marque-pages
         }
     .accesskey = e
+places-show-in-folder =
+    .label = Afficher dans le dossier
+    .accesskey = d
 # Variables:
 # $count (number) - The number of elements being selected for removal.
 places-delete-bookmark =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/screenshots.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/screenshots.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/screenshots.ftl	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/screenshots.ftl	2021-10-20 19:32:39.000000000 +0000
@@ -5,7 +5,8 @@
 screenshot-toolbarbutton =
     .label = Capture d’écran
     .tooltiptext = Prendre une capture d’écran
-
+screenshot-shortcut =
+    .key = S
 screenshots-instructions = Sélectionnez une zone de la page par cliquer-glisser ou en cliquant sur l’élément à sélectionner. Appuyez sur Échap pour annuler.
 screenshots-cancel-button = Annuler
 screenshots-save-visible-button = Capturer la zone visible
@@ -14,7 +15,6 @@
 screenshots-download-button-tooltip = Télécharger la capture d’écran
 screenshots-copy-button = Copier
 screenshots-copy-button-tooltip = Copier la capture d’écran dans le presse-papiers
-
 screenshots-meta-key =
     { PLATFORM() ->
         [macos] ⌘
@@ -22,25 +22,17 @@
     }
 screenshots-notification-link-copied-title = Lien copié
 screenshots-notification-link-copied-details = Le lien de votre capture a été copié dans le presse-papiers. Appuyez sur { screenshots-meta-key }-V pour le coller.
-
 screenshots-notification-image-copied-title = Capture copiée
 screenshots-notification-image-copied-details = Votre capture a été copiée dans le presse-papiers. Appuyez sur { screenshots-meta-key }-V pour la coller.
-
 screenshots-request-error-title = Impossible d’effectuer cette action.
 screenshots-request-error-details = Votre capture d’écran n’a pas pu être enregistrée. Veuillez réessayer plus tard.
-
 screenshots-connection-error-title = Nous ne pouvons pas nous connecter à vos captures d’écran.
 screenshots-connection-error-details = Veuillez vérifier votre connexion à Internet. Si celle-ci fonctionne normalement, il peut y avoir un problème temporaire avec le service de { -screenshots-brand-name }.
-
 screenshots-login-error-details = Nous n’avons pas pu enregistrer votre capture d’écran, car le service de { -screenshots-brand-name } rencontre des difficultés. Veuillez réessayer plus tard.
-
 screenshots-unshootable-page-error-title = Impossible d’effectuer une capture de cette page.
 screenshots-unshootable-page-error-details = Impossible d’effectuer une capture d’écran, car cette page web n’est pas standard.
-
 screenshots-empty-selection-error-title = La zone sélectionnée est trop petite
-
 screenshots-private-window-error-title = { -screenshots-brand-name } est désactivé en mode de navigation privée
 screenshots-private-window-error-details = Désolé pour la gêne occasionnée. Nous travaillons sur cette fonctionnalité pour de prochaines versions.
-
 screenshots-generic-error-title = { -screenshots-brand-name } semble avoir un problème.
 screenshots-generic-error-details = Un problème non identifié est survenu. Vous pouvez réessayer ou effectuer une capture d’écran d’une autre page.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/upgradeDialog.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/upgradeDialog.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/browser/browser/upgradeDialog.ftl	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/browser/browser/upgradeDialog.ftl	2021-10-20 19:32:39.000000000 +0000
@@ -67,6 +67,8 @@
 
 ## Start screen
 
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-start-title = La vie en couleur
 upgrade-dialog-start-subtitle = De nouveaux coloris somptueux. Disponibles pendant une durée limitée.
 upgrade-dialog-start-primary-button = Découvrir ces coloris
 upgrade-dialog-start-secondary-button = Plus tard
@@ -75,6 +77,7 @@
 
 # This title can be explicitly wrapped to control which words are on which line.
 upgrade-dialog-colorway-title = Choisissez vos couleurs
+# This is shown to users with a custom home page, so they can switch to default.
 upgrade-dialog-colorway-home-checkbox = Passer à l’accueil de Firefox avec les couleurs de votre thème
 upgrade-dialog-colorway-primary-button = Enregistrer le coloris
 upgrade-dialog-colorway-secondary-button = Conserver le thème précédent
@@ -101,6 +104,10 @@
     .title = Utiliser ce coloris
 upgrade-dialog-colorway-variation-balanced = Équilibré
     .title = Utiliser ce coloris
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+upgrade-dialog-colorway-variation-bold = Soutenu
+    .title = Utiliser ce coloris
 
 ## Thank you screen
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/chat/matrix.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/chat/matrix.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/chat/matrix.properties	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/chat/matrix.properties	2021-10-20 19:32:39.000000000 +0000
@@ -226,9 +226,10 @@
 message.alias.removedAndAdded=%1$S a supprimé %2$S et ajouté %3$S comme adresse pour ce salon.
 message.spaceNotSupported=Ce salon est un espace, ce qui n’est pas pris en charge.
 message.encryptionStart=Les messages de cette conversation sont désormais chiffrés de bout en bout.
-#    %1S is the name of the user who sent the verification request.
-#    %2S is the name of the user that is receiving the verification request.
-message.verification.request=%1S veut vérifier %2S.
-#    %1S is the name of the user who cancelled the verification request.
-#    %2S is the reason given why the verification was cancelled.
-message.verification.cancel=%1S a annulé la vérification avec la raison : %2S
+#    %1$S is the name of the user who sent the verification request.
+#    %2$S is the name of the user that is receiving the verification request.
+message.verification.request2=%1$S veut vérifier %2$S.
+#    %1$S is the name of the user who cancelled the verification request.
+#    %2$S is the reason given why the verification was cancelled.
+message.verification.cancel2=%1$S a annulé la vérification avec la raison : %2$S
+message.verification.done=Vérification terminée.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/devtools/client/perftools.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/devtools/client/perftools.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/devtools/client/perftools.ftl	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/devtools/client/perftools.ftl	2021-10-20 19:32:39.000000000 +0000
@@ -39,9 +39,7 @@
 
 # The size of the memory buffer used to store things in the profiler.
 perftools-range-entries-label = Taille du tampon :
-
 perftools-custom-threads-label = Ajouter des threads personnalisés par nom :
-
 perftools-devtools-interval-label = Intervalle :
 perftools-devtools-threads-label = Threads :
 perftools-devtools-settings-label = Paramètres
@@ -100,7 +98,6 @@
 ##
 
 perftools-record-all-registered-threads = Ignorer les sélections ci-dessus et enregistrer tous les fils enregistrés
-
 perftools-tools-threads-input-label =
     .title = Ces noms de fil d’exécution sont une liste séparée par des virgules utilisée pour activer le profilage des fils dans le profileur. Le nom ne doit correspondre que partiellement au nom du fil à inclure. Il est sensible aux espaces.
 
@@ -109,9 +106,27 @@
 ## preferences are true.
 
 perftools-onboarding-message = <b>Nouveau</b> : le { -profiler-brand-name } est à présent intégré dans les outils de développement. <a>En savoir plus</a> sur ce nouvel outil puissant.
-
 # `options-context-advanced-settings` is defined in toolbox-options.ftl
 perftools-onboarding-reenable-old-panel = (Pour une durée limitée, vous pouvez accéder au panneau de performances d’origine via <a>{ options-context-advanced-settings }</a>)
-
 perftools-onboarding-close-button =
     .aria-label = Fermer le message d’intégration
+
+## Profiler presets
+
+
+# Presets and their l10n IDs are defined in the file
+# devtools/client/performance-new/popup/background.jsm.js
+# The same labels and descriptions are also defined in appmenu.ftl.
+
+perftools-presets-firefox-platform-label = Plateforme Firefox
+perftools-presets-firefox-platform-description = Réglage recommandé pour le débogage interne de la plateforme Firefox.
+perftools-presets-firefox-front-end-label = Interface Firefox
+perftools-presets-firefox-front-end-description = Réglage recommandé pour le débogage interne de l’interface Firefox.
+perftools-presets-firefox-graphics-label = Performances graphiques de Firefox
+perftools-presets-firefox-graphics-description = Réglage recommandé pour l’étude des performances graphiques de Firefox.
+perftools-presets-media-label = Multimédia
+perftools-presets-media-description = Réglage recommandé pour diagnostiquer les problèmes audio et vidéo.
+perftools-presets-custom-label = Personnalisé
+
+##
+
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/dom/chrome/dom/dom.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/dom/chrome/dom/dom.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/dom/chrome/dom/dom.properties	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/dom/chrome/dom/dom.properties	2021-10-20 19:32:39.000000000 +0000
@@ -421,3 +421,6 @@
 ElementReleaseCaptureWarning=Element.releaseCapture() est obsolète. Utilisez Element.releasePointerCapture() à la place. Pour plus d’informations https://developer.mozilla.org/fr/docs/Web/API/Element/releasePointerCapture
 # LOCALIZATION NOTE: Do not translate "Document.releaseCapture()" and "Element.releasePointerCapture()".
 DocumentReleaseCaptureWarning=Document.releaseCapture() est obsolète. Utilisez Element.releasePointerCapture() à la place. Pour plus d’informations https://developer.mozilla.org/fr/docs/Web/API/Element/releasePointerCapture
+
+# LOCALIZATION NOTE: Don't translate browser.runtime.lastError, %S is the error message from the unchecked value set on browser.runtime.lastError.
+WebExtensionUncheckedLastError=La valeur de browser.runtime.lastError n’a pas été vérifiée : %S
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/toolkit/toolkit/global/run-from-dmg.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/toolkit/toolkit/global/run-from-dmg.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/fr/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-17 14:46:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/fr/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-20 19:32:39.000000000 +0000
@@ -17,3 +17,12 @@
 
 install-failed-title = L’installation de { -brand-short-name } a échoué.
 install-failed-message = { -brand-short-name } n’a pas pu être installé mais continuera à s’exécuter.
+
+## Strings for a dialog that recommends to the user to start an existing
+## installation of the app in the Applications directory if one is detected,
+## rather than the app that was double-clicked in a .dmg.
+
+prompt-to-launch-existing-app-title = Ouvrir l’application { -brand-short-name } existante ?
+prompt-to-launch-existing-app-message = Vous avez déjà installé { -brand-short-name }. Utilisez l’application installée pour rester à jour et éviter la perte de données.
+prompt-to-launch-existing-app-yes-button = Ouvrir l’application existante
+prompt-to-launch-existing-app-no-button = Non merci
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/hsb/toolkit/toolkit/global/run-from-dmg.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/hsb/toolkit/toolkit/global/run-from-dmg.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/hsb/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-17 14:46:41.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/hsb/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-20 19:33:40.000000000 +0000
@@ -23,5 +23,6 @@
 ## rather than the app that was double-clicked in a .dmg.
 
 prompt-to-launch-existing-app-title = Eksistowace nałoženje { -brand-short-name } wočinić?
+prompt-to-launch-existing-app-message = Sće { -brand-short-name } hižo zainstalował. Wužiwajće zainstalowane nałoženje, zo byšće na běžnym wostał a straće datow zadźěwał.
 prompt-to-launch-existing-app-yes-button = Eksistowace wočinić
 prompt-to-launch-existing-app-no-button = Ně, dźakuju so
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ia/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ia/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ia/browser/browser/aboutUnloads.ftl	2021-10-17 14:46:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ia/browser/browser/aboutUnloads.ftl	2021-10-20 19:34:02.000000000 +0000
@@ -22,13 +22,14 @@
     compartite inter schedas differente. Tu pote actionar manualmente le
     evacuation de schedas cliccante le button <em>Evacuar</em> hic infra.
 about-unloads-intro =
-    { -brand-short-name } ha un function que evacua automaticamente schedas
-    pro impedir le crashes del application per memoria insufficiente
-    quando es basse lo disponibile del systema. Le proxime scheda a esser evacuate es
-    eligite in base a plure attributos. Iste pagina monstra como
-    Iste pagina monstra como { -brand-short-name } da prioritate al schedas e que scheda sera evacuate
-    quando le evacuation de schedas es discatenate. Tu manualmente pote discatenar le evacuation de schedas
-    cliccante infra le button <em>Evacuar</em>.
+    { -brand-short-name } ha un function que remove automaticamente le
+    contento de schedas del memoria pro impedir que le application collabe
+    quando le memoria disponibile in le systema deveni insufficiente. Le
+    proxime scheda a esser evacuate es eligite a base de plure attributos.
+    Iste pagina monstra como { -brand-short-name } da prioritate al schedas e
+    qual scheda essera evacuate quando le evacuation de schedas es actionate.
+    Tu pote actionar manualmente le evacuation de schedas cliccante le button
+    <em>Evacuar</em> infra.
 # The link points to a Firefox documentation page, only available in English,
 # with title "Tab Unloading"
 about-unloads-learn-more = Vider <a data-l10n-name="doc-link">Evacuation de schedas</a> pro saper plus re le function e iste pagina.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ia/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ia/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ia/browser/browser/appmenu.ftl	2021-10-17 14:46:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ia/browser/browser/appmenu.ftl	2021-10-20 19:34:02.000000000 +0000
@@ -172,21 +172,21 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
-profiler-popup-presets-web-developer-description = Pre-configuration recommendate, con basse supercarga, pro le major parte del depuration de app web.
+profiler-popup-presets-web-developer-description = Pre-configuration recommendate pro le depuration del major parte de applicationes web, con poc supercarga.
 profiler-popup-presets-web-developer-label =
     .label = Disveloppamento web
-profiler-popup-presets-firefox-platform-description = Pre-configuration recommendate pro le depuration del platteforma interne Firefox.
+profiler-popup-presets-firefox-platform-description = Pre-configuration recommendate pro le depuration interne del platteforma Firefox.
 profiler-popup-presets-firefox-platform-label =
     .label = Platteforma Firefox
-profiler-popup-presets-firefox-front-end-description = Pre-configuration recommendate pro depuration de interfacie anterior interne Firefox.
+profiler-popup-presets-firefox-front-end-description = Pre-configuration recommendate pro le depuration interne del interfacie de Firefox.
 profiler-popup-presets-firefox-front-end-label =
-    .label = Interfacie anterior Firefox
+    .label = Interfacie de Firefox
 profiler-popup-presets-firefox-graphics-description = Pre-configuration recommendate pro le investigation del prestation graphic de Firefox.
 profiler-popup-presets-firefox-graphics-label =
     .label = Graphica de Firefox
 profiler-popup-presets-media-description = Pre-configuration recommendate pro diagnosticar problemas audio e video.
 profiler-popup-presets-media-label =
-    .label = Medios
+    .label = Multimedia
 profiler-popup-presets-custom-label =
     .label = Personalisate
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ia/browser/browser/newtab/onboarding.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ia/browser/browser/newtab/onboarding.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ia/browser/browser/newtab/onboarding.ftl	2021-10-17 14:46:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ia/browser/browser/newtab/onboarding.ftl	2021-10-20 19:34:02.000000000 +0000
@@ -95,7 +95,7 @@
 # of the person and shouldn't be translated.
 # In case your language needs to adapt the nouns to a gender, Soraya is a female name (she/her).
 # You can see the picture in about:welcome in Nightly 90.
-mr1-onboarding-welcome-image-caption = Soraya Osorio — Designer de mobiles, fan de Firefox
+mr1-onboarding-welcome-image-caption = Soraya Osorio — Designator de mobiles, fan de Firefox
 # This button will open system settings to turn on prefers-reduced-motion
 mr1-onboarding-reduce-motion-button-label = Disactivar le animationes
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/is/browser/browser/tabContextMenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/is/browser/browser/tabContextMenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/is/browser/browser/tabContextMenu.ftl	2021-10-17 14:46:58.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/is/browser/browser/tabContextMenu.ftl	2021-10-20 19:34:14.000000000 +0000
@@ -9,8 +9,8 @@
     .label = Velja alla flipa
     .accesskey = S
 duplicate-tab =
-    .label = Afrita flipa
-    .accesskey = A
+    .label = Tvöfalda flipa
+    .accesskey = T
 duplicate-tabs =
     .label = Tvöfalda flipa
     .accesskey = D
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/it/browser/browser/downloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/it/browser/browser/downloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/it/browser/browser/downloads.ftl	2021-10-17 14:47:02.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/it/browser/browser/downloads.ftl	2021-10-20 19:34:24.000000000 +0000
@@ -43,6 +43,13 @@
     .label = Mostra nel Finder
     .accesskey = F
 
+downloads-cmd-show-menuitem-2 =
+  .label = { PLATFORM() ->
+      [macos] Mostra nel Finder
+     *[other] Mostra nella cartella
+  }
+  .accesskey = n
+
 downloads-cmd-use-system-default =
   .label = Apri nel visualizzatore del sistema
   .accesskey = v
@@ -57,7 +64,6 @@
             [macos] Mostra nel Finder
            *[other] Apri cartella di destinazione
         }
-
 downloads-cmd-show-panel =
     .aria-label =
         { PLATFORM() ->
@@ -71,6 +77,25 @@
            *[other] Apri cartella di destinazione
         }
 
+downloads-cmd-show-button-2 =
+    .tooltiptext =
+        { PLATFORM() ->
+            [macos] Mostra nel Finder
+           *[other] Mostra nella cartella
+        }
+downloads-cmd-show-panel-2 =
+    .aria-label =
+        { PLATFORM() ->
+            [macos] Mostra nel Finder
+           *[other] Mostra nella cartella
+        }
+downloads-cmd-show-description-2 =
+    .value =
+        { PLATFORM() ->
+            [macos] Mostra nel Finder
+           *[other] Mostra nella cartella
+        }
+
 downloads-cmd-show-downloads =
     .label = Visualizza cartella di download
 downloads-cmd-retry =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/aboutPrivateBrowsing.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/aboutPrivateBrowsing.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/aboutPrivateBrowsing.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/aboutPrivateBrowsing.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -25,10 +25,13 @@
 about-private-browsing-need-more-privacy = より厳重なプライバシーが必要ですか？
 about-private-browsing-turn-on-vpn = { -mozilla-vpn-brand-name } をお試しください
 
+about-private-browsing-info-description-private-window = プライベートウィンドウ: { -brand-short-name } はプライベートウィンドウをすべて閉じると、検索履歴と閲覧履歴を消去します。匿名化はしません。
 about-private-browsing-info-description-simplified = { -brand-short-name } はプライベートウィンドウをすべて閉じると、検索履歴と閲覧履歴を消去しますが、匿名化されているわけではありません。
 about-private-browsing-learn-more-link = 詳細情報
 
 about-private-browsing-hide-activity = あなたの行動と訪問先のすべてを秘匿します
+about-private-browsing-get-privacy = どこでもプライバシーを確保
+about-private-browsing-hide-activity-1 = { -mozilla-vpn-brand-name } であなたの行動と訪問先を秘匿できます。公共 Wi-Fi でもクリックひとつで安全な接続を確保できます。
 about-private-browsing-prominent-cta = { -mozilla-vpn-brand-name } でプライバシーを確保
 
 # This string is the title for the banner for search engine selection
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/aboutUnloads.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/aboutUnloads.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -15,6 +15,12 @@
     プロセス ID について、タブのトップフレームを保持している場合は <strong>太字</strong> で表示され、他のタブとプロセスが共有されている場合は <em>イタリック体</em> で表示されます。
     以下の <em>解放</em> ボタンを押すと、手動でタブを解放できます。
 
+about-unloads-intro = { -brand-short-name } には、システムのメモリーの空き領域が少なくなったときに、メモリー不足によるアプリケーションのクラッシュを防ぐための自動的にタブを解放する機能があります。次に解放されるタブは、複数の属性から選択されます。このページは、タブが解放される時、{ -brand-short-name } がどのようにタブに優先度を付けて解放するかを表示します。以下の <em>解放</em> ボタンを押すと、手動でタブを解放できます。
+
+# The link points to a Firefox documentation page, only available in English,
+# with title "Tab Unloading"
+about-unloads-learn-more = このページと機能についての詳細は <a data-l10n-name="doc-link">Tab Unloading</a> を参照してください。
+
 about-unloads-last-updated =
     最終更新日時: { DATETIME($date,
         year: "numeric", month: "numeric", day: "numeric",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/appExtensionFields.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/appExtensionFields.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/appExtensionFields.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/appExtensionFields.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -5,6 +5,8 @@
 
 ## Theme names and descriptions used in the Themes panel in about:addons
 
+# "Auto" is short for automatic. It can be localized without limitations.
+extension-default-theme-name-auto = システムテーマ — 自動
 extension-default-theme-description = ボタンやメニュー、ウィンドウについてオペレーティングシステムの設定に従います。
 extension-firefox-compact-light-name = Light
 extension-firefox-compact-light-description = 明るい配色のテーマです。
@@ -19,3 +21,8 @@
 ## Variables
 ##   $colorway-name (String) The name of a colorway (e.g. Graffiti, Elemental).
 
+extension-colorways-soft-name={ $colorway-name } — Soft
+extension-colorways-balanced-name={ $colorway-name } — Balanced
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+extension-colorways-bold-name={ $colorway-name } — Bold
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/appmenu.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/appmenu.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -114,6 +114,12 @@
 profiler-popup-button-idle =
     .label = プロファイラー
     .tooltiptext = パフォーマンスプロファイルを記録します
+profiler-popup-button-recording =
+    .label = プロファイラー
+    .tooltiptext = プロファイラーがプロファイルを記録中です
+profiler-popup-button-capturing =
+    .label = プロファイラー
+    .tooltiptext = プロファイラーがプロファイルをキャプチャ中です
 profiler-popup-title =
     .value = { -profiler-brand-name }
 profiler-popup-reveal-description-button =
@@ -157,11 +163,26 @@
 ## Profiler presets
 ## They are shown in the popup's select box.
 
-
 # Presets and their l10n IDs are defined in the file
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
-
+profiler-popup-presets-web-developer-description = 一般的なウェブアプリをデバッグするための低負荷な推奨プリセットです。
+profiler-popup-presets-web-developer-label =
+    .label = ウェブ開発
+profiler-popup-presets-firefox-platform-description = Firefox のプラットフォーム内部をデバッグするための推奨プリセットです。
+profiler-popup-presets-firefox-platform-label =
+    .label = Firefox プラットフォーム
+profiler-popup-presets-firefox-front-end-description = Firefox のフロントエンド内部をデバッグするための推奨プリセットです。
+profiler-popup-presets-firefox-front-end-label =
+    .label = Firefox フロントエンド
+profiler-popup-presets-firefox-graphics-description = Firefox のグラフィック性能を調査するための推奨プリセットです。
+profiler-popup-presets-firefox-graphics-label =
+    .label = Firefox グラフィック
+profiler-popup-presets-media-description = 音声と動画の問題を診断するための推奨プリセットです。
+profiler-popup-presets-media-label =
+    .label = メディア
+profiler-popup-presets-custom-label =
+    .label = カスタム
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/browser.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/browser.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/browser.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/browser.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -775,3 +775,9 @@
 tabs-toolbar-list-all-tabs =
     .label = タブを一覧表示する
     .tooltiptext = タブを一覧表示します
+
+## Infobar shown at startup to suggest session-restore
+
+# <img data-l10n-name="icon"/> will be replaced by the application menu icon
+restore-session-startup-suggestion-message = <strong>前回のタブを開きますか？</strong> { -brand-short-name } アプリケーションメニュー<img data-l10n-name="icon"/>の履歴から前回のセッションを復元できます。
+restore-session-startup-suggestion-button = 方法を確認
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/customizeMode.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/customizeMode.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/customizeMode.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/customizeMode.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -41,6 +41,7 @@
     .label = 元に戻す
 customize-mode-lwthemes-my-themes =
     .value = マイテーマ
+customize-mode-lwthemes-link = テーマを管理
 customize-mode-touchbar-cmd =
     .label = タッチバーをカスタマイズ...
 customize-mode-downloads-button-autohide =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/newtab/newtab.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/newtab/newtab.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/newtab/newtab.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/newtab/newtab.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -226,11 +226,29 @@
 
 # This is shown at the bottom of the trending stories section and precedes a list of links to popular topics.
 newtab-pocket-read-more = 人気のトピック:
+newtab-pocket-new-topics-title = 他の記事も読みたいですか？ { -pocket-brand-name } からの人気記事も見てみましょう
 newtab-pocket-more-recommendations = 他のおすすめ
 newtab-pocket-learn-more = 詳細
 newtab-pocket-cta-button = { -pocket-brand-name } を入手
 newtab-pocket-cta-text = お気に入りに記事を { -pocket-brand-name } に保存して、魅力的な読み物を思う存分楽しみましょう。
 
+newtab-pocket-pocket-firefox-family = { -pocket-brand-name } は { -brand-product-name } ファミリーの一員です
+
+# A save to Pocket button that shows over the card thumbnail on hover.
+newtab-pocket-save-to-pocket = { -pocket-brand-name } に保存します
+newtab-pocket-saved-to-pocket = { -pocket-brand-name } に保存しました
+
+# This is a button shown at the bottom of the Pocket section that loads more stories when clicked.
+newtab-pocket-load-more-stories-button = その他の記事を読み込む
+
+## Pocket Final Card Section.
+## This is for the final card in the Pocket grid.
+
+newtab-pocket-last-card-title = 最後まで読みました！
+newtab-pocket-last-card-desc = 後でもう一度確認してください。
+newtab-pocket-last-card-image =
+    .alt = 最後まで読みました
+
 ## Error Fallback Content.
 ## This message and suggested action link are shown in each section of UI that fails to render.
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/newtab/onboarding.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/newtab/onboarding.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/newtab/onboarding.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/newtab/onboarding.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -160,6 +160,22 @@
 mr1-onboarding-import-primary-button-label-no-attribution = 以前のブラウザーからインポート
 mr1-onboarding-import-secondary-button-label = 後で
 
+mr2-onboarding-colorway-header = カラーテーマ
+mr2-onboarding-colorway-subtitle = 新しいカラーテーマが期間限定で利用できます。
+mr2-onboarding-colorway-primary-button-label = カラーテーマを保存
+mr2-onboarding-colorway-secondary-button-label = 後で
+mr2-onboarding-colorway-label-soft = Soft
+mr2-onboarding-colorway-label-balanced = Balance
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+mr2-onboarding-colorway-label-bold = Bold
+
+# Automatic theme uses operating system color settings
+mr2-onboarding-theme-label-auto = 自動
+
+# This string will be used for Default theme
+mr2-onboarding-theme-label-default = 既定
+
 mr1-onboarding-theme-header = 自分らしく
 mr1-onboarding-theme-subtitle = テーマで { -brand-short-name } をパーソナライズできます。
 mr1-onboarding-theme-primary-button-label = テーマを保存
@@ -248,3 +264,39 @@
 # Input description for Alpenglow theme
 mr1-onboarding-theme-description-alpenglow =
   .aria-description = ダイナミックでカラフルな外観のボタン、メニュー、ウィンドウを使用します。
+
+# Tooltip displayed on hover of non-default colorway theme
+# variations e.g. soft, balanced, bold
+mr2-onboarding-theme-tooltip =
+  .title = このカラーテーマを使います。
+
+# Selector description for non-default colorway theme
+# variations e.g. soft, balanced, bold
+mr2-onboarding-theme-description =
+  .aria-description = このカラーテーマを使います。
+
+# Tooltip displayed on hover of colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-tooltip =
+  .title = { $colorwayName } のカラーテーマを見てみます。
+
+# Selector description for colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-description =
+  .aria-description = { $colorwayName } のカラーテーマを見てみます
+
+# Tooltip displayed on hover of default themes
+mr2-onboarding-default-theme-tooltip =
+  .title = 既定のテーマを見てみます。
+
+# Selector description for default themes
+mr2-onboarding-default-theme-description =
+  .aria-description = 既定のテーマを見てみます。
+
+## Strings for Thank You page
+
+mr2-onboarding-thank-you-header = ありがとうございます
+mr2-onboarding-thank-you-text = { -brand-short-name } は非営利を背景とする独立したブラウザーです。私たちはユーザーとともにウェブをより安全、健全にし、個人情報を保護していきます。
+mr2-onboarding-start-browsing-button-label = ブラウジングを開始
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/places.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/places.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/places.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/places.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -95,6 +95,11 @@
 places-remove-bookmark =
     .label = ブックマークを削除
     .accesskey = e
+
+places-show-in-folder =
+  .label = フォルダーで表示
+  .accesskey = F
+
 # Variables:
 # $count (number) - The number of elements being selected for removal.
 places-delete-bookmark =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/screenshots.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/screenshots.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/screenshots.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/screenshots.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -6,6 +6,9 @@
   .label = スクリーンショット
   .tooltiptext = スクリーンショットを撮影します
 
+screenshot-shortcut =
+  .key = S
+
 screenshots-instructions = ページをドラッグまたはクリックして範囲を選択してください。ESC キーを押すとキャンセルできます。
 screenshots-cancel-button = キャンセル
 screenshots-save-visible-button = 表示範囲を保存
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/upgradeDialog.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/upgradeDialog.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja/browser/browser/upgradeDialog.ftl	2021-10-17 14:47:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja/browser/browser/upgradeDialog.ftl	2021-10-20 19:34:31.000000000 +0000
@@ -61,6 +61,32 @@
 upgrade-dialog-theme-title-2 = できたてのテーマで新しく始める
 upgrade-dialog-theme-system = システムテーマ
     .title = OS のボタン、メニュー、ウィンドウの外観です
+
+## Start screen
+
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-start-title = カラーテーマ
+upgrade-dialog-start-subtitle = 新しいカラーテーマが期間限定で利用できます。
+upgrade-dialog-start-primary-button = カラーテーマを見てみる
+upgrade-dialog-start-secondary-button = 後で
+
+## Colorway screen
+
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-colorway-title = パレットを選ぶ
+# This is shown to users with a custom home page, so they can switch to default.
+upgrade-dialog-colorway-home-checkbox = Firefox Home をテーマの背景に切り替える
+upgrade-dialog-colorway-primary-button = テーマを保存
+upgrade-dialog-colorway-secondary-button = 以前のテーマ
+upgrade-dialog-colorway-theme-tooltip =
+    .title = 既定のテーマを見てみます
+# $colorwayName (String) - Name of colorway, e.g., Abstract, Cheers
+upgrade-dialog-colorway-colorway-tooltip =
+    .title = { $colorwayName } のカラーテーマを見てみます
+upgrade-dialog-colorway-default-theme = 既定
+# "Auto" is short for "Automatic"
+upgrade-dialog-colorway-theme-auto = 自動
+    .title = ボタンやメニュー、ウィンドウについてオペレーティングシステムの設定に従います
 upgrade-dialog-theme-light = Light
     .title = 明るい外観のボタン、メニュー、ウィンドウを使用します
 upgrade-dialog-theme-dark = Dark
@@ -71,3 +97,18 @@
     .title = { -brand-short-name } を更新する前にインストールしていたテーマを使用します
 upgrade-dialog-theme-primary-button = テーマを保存
 upgrade-dialog-theme-secondary-button = 後で
+upgrade-dialog-colorway-variation-soft = Soft
+    .title = このカラーテーマを使う
+upgrade-dialog-colorway-variation-balanced = Balance
+    .title = このカラーテーマを使う
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+upgrade-dialog-colorway-variation-bold = Bold
+    .title = このカラーテーマを使う
+
+## Thank you screen
+
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-thankyou-title = ありがとうございます
+upgrade-dialog-thankyou-subtitle = { -brand-short-name } は非営利を背景とする独立したブラウザーです。私たちはユーザーとともにウェブをより安全、健全にし、個人情報を保護していきます。
+upgrade-dialog-thankyou-primary-button = ブラウジングを開始
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/aboutPrivateBrowsing.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/aboutPrivateBrowsing.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/aboutPrivateBrowsing.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/aboutPrivateBrowsing.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -25,10 +25,13 @@
 about-private-browsing-need-more-privacy = より厳重なプライバシーが必要ですか？
 about-private-browsing-turn-on-vpn = { -mozilla-vpn-brand-name } をお試しください
 
+about-private-browsing-info-description-private-window = プライベートウインドウ: { -brand-short-name } はプライベートウインドウをすべて閉じると、検索履歴と閲覧履歴を消去します。匿名化はしません。
 about-private-browsing-info-description-simplified = { -brand-short-name } はプライベートウインドウをすべて閉じると、検索履歴と閲覧履歴を消去しますが、匿名化されているわけではありません。
 about-private-browsing-learn-more-link = 詳細情報
 
 about-private-browsing-hide-activity = あなたの行動と訪問先のすべてを秘匿します
+about-private-browsing-get-privacy = どこでもプライバシーを確保
+about-private-browsing-hide-activity-1 = { -mozilla-vpn-brand-name } であなたの行動と訪問先を秘匿できます。公共 Wi-Fi でもクリックひとつで安全な接続を確保できます。
 about-private-browsing-prominent-cta = { -mozilla-vpn-brand-name } でプライバシーを確保
 
 # This string is the title for the banner for search engine selection
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/aboutUnloads.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/aboutUnloads.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -15,6 +15,12 @@
     プロセス ID について、タブのトップフレームを保持している場合は <strong>太字</strong> で表示され、他のタブとプロセスが共有されている場合は <em>イタリック体</em> で表示されます。
     以下の <em>解放</em> ボタンを押すと、手動でタブを解放できます。
 
+about-unloads-intro = { -brand-short-name } には、システムのメモリーの空き領域が少なくなったときに、メモリー不足によるアプリケーションのクラッシュを防ぐための自動的にタブを解放する機能があります。次に解放されるタブは、複数の属性から選択されます。このページは、タブが解放される時、{ -brand-short-name } がどのようにタブに優先度を付けて解放するかを表示します。以下の <em>解放</em> ボタンを押すと、手動でタブを解放できます。
+
+# The link points to a Firefox documentation page, only available in English,
+# with title "Tab Unloading"
+about-unloads-learn-more = このページと機能についての詳細は <a data-l10n-name="doc-link">Tab Unloading</a> を参照してください。
+
 about-unloads-last-updated =
     最終更新日時: { DATETIME($date,
         year: "numeric", month: "numeric", day: "numeric",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/appExtensionFields.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/appExtensionFields.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/appExtensionFields.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/appExtensionFields.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -5,6 +5,8 @@
 
 ## Theme names and descriptions used in the Themes panel in about:addons
 
+# "Auto" is short for automatic. It can be localized without limitations.
+extension-default-theme-name-auto = システムテーマ — 自動
 extension-default-theme-description = ボタンやメニュー、ウインドウについてオペレーティングシステムの設定に従います。
 extension-firefox-compact-light-name = Light
 extension-firefox-compact-light-description = 明るいカラーのテーマです。
@@ -19,3 +21,8 @@
 ## Variables
 ##   $colorway-name (String) The name of a colorway (e.g. Graffiti, Elemental).
 
+extension-colorways-soft-name={ $colorway-name } — Soft
+extension-colorways-balanced-name={ $colorway-name } — Balanced
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+extension-colorways-bold-name={ $colorway-name } — Bold
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/appmenu.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/appmenu.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -114,6 +114,12 @@
 profiler-popup-button-idle =
     .label = プロファイラー
     .tooltiptext = パフォーマンスプロファイルを記録します
+profiler-popup-button-recording =
+    .label = プロファイラー
+    .tooltiptext = プロファイラーがプロファイルを記録中です
+profiler-popup-button-capturing =
+    .label = プロファイラー
+    .tooltiptext = プロファイラーがプロファイルをキャプチャ中です
 profiler-popup-title =
     .value = { -profiler-brand-name }
 profiler-popup-reveal-description-button =
@@ -157,11 +163,26 @@
 ## Profiler presets
 ## They are shown in the popup's select box.
 
-
 # Presets and their l10n IDs are defined in the file
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
-
+profiler-popup-presets-web-developer-description = 一般的なウェブアプリをデバッグするための低負荷な推奨プリセットです。
+profiler-popup-presets-web-developer-label =
+    .label = ウェブ開発
+profiler-popup-presets-firefox-platform-description = Firefox のプラットフォーム内部をデバッグするための推奨プリセットです。
+profiler-popup-presets-firefox-platform-label =
+    .label = Firefox プラットフォーム
+profiler-popup-presets-firefox-front-end-description = Firefox のフロントエンド内部をデバッグするための推奨プリセットです。
+profiler-popup-presets-firefox-front-end-label =
+    .label = Firefox フロントエンド
+profiler-popup-presets-firefox-graphics-description = Firefox のグラフィック性能を調査するための推奨プリセットです。
+profiler-popup-presets-firefox-graphics-label =
+    .label = Firefox グラフィック
+profiler-popup-presets-media-description = 音声と動画の問題を診断するための推奨プリセットです。
+profiler-popup-presets-media-label =
+    .label = メディア
+profiler-popup-presets-custom-label =
+    .label = カスタム
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/browser.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/browser.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/browser.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/browser.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -775,3 +775,9 @@
 tabs-toolbar-list-all-tabs =
     .label = タブを一覧表示する
     .tooltiptext = タブを一覧表示します
+
+## Infobar shown at startup to suggest session-restore
+
+# <img data-l10n-name="icon"/> will be replaced by the application menu icon
+restore-session-startup-suggestion-message = <strong>前回のタブを開きますか？</strong> { -brand-short-name } アプリケーションメニュー<img data-l10n-name="icon"/>の履歴から前回のセッションを復元できます。
+restore-session-startup-suggestion-button = 方法を確認
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/customizeMode.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/customizeMode.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/customizeMode.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/customizeMode.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -41,6 +41,7 @@
     .label = 取り消す
 customize-mode-lwthemes-my-themes =
     .value = マイテーマ
+customize-mode-lwthemes-link = テーマを管理
 customize-mode-touchbar-cmd =
     .label = タッチバーをカスタマイズ...
 customize-mode-downloads-button-autohide =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/newtab/newtab.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/newtab/newtab.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/newtab/newtab.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/newtab/newtab.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -226,11 +226,29 @@
 
 # This is shown at the bottom of the trending stories section and precedes a list of links to popular topics.
 newtab-pocket-read-more = 人気のトピック:
+newtab-pocket-new-topics-title = 他の記事も読みたいですか？ { -pocket-brand-name } からの人気記事も見てみましょう
 newtab-pocket-more-recommendations = 他のおすすめ
 newtab-pocket-learn-more = 詳細
 newtab-pocket-cta-button = { -pocket-brand-name } を入手
 newtab-pocket-cta-text = お気に入りに記事を { -pocket-brand-name } に保存して、魅力的な読み物を思う存分楽しみましょう。
 
+newtab-pocket-pocket-firefox-family = { -pocket-brand-name } は { -brand-product-name } ファミリーの一員です
+
+# A save to Pocket button that shows over the card thumbnail on hover.
+newtab-pocket-save-to-pocket = { -pocket-brand-name } に保存します
+newtab-pocket-saved-to-pocket = { -pocket-brand-name } に保存しました
+
+# This is a button shown at the bottom of the Pocket section that loads more stories when clicked.
+newtab-pocket-load-more-stories-button = その他の記事を読み込む
+
+## Pocket Final Card Section.
+## This is for the final card in the Pocket grid.
+
+newtab-pocket-last-card-title = 最後まで読みました！
+newtab-pocket-last-card-desc = 後でもう一度確認してください。
+newtab-pocket-last-card-image =
+    .alt = 最後まで読みました
+
 ## Error Fallback Content.
 ## This message and suggested action link are shown in each section of UI that fails to render.
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/newtab/onboarding.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/newtab/onboarding.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/newtab/onboarding.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/newtab/onboarding.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -160,6 +160,22 @@
 mr1-onboarding-import-primary-button-label-no-attribution = 以前のブラウザーから読み込む
 mr1-onboarding-import-secondary-button-label = 後で
 
+mr2-onboarding-colorway-header = カラーテーマ
+mr2-onboarding-colorway-subtitle = 新しいカラーテーマが期間限定で利用できます。
+mr2-onboarding-colorway-primary-button-label = カラーテーマを保存
+mr2-onboarding-colorway-secondary-button-label = 後で
+mr2-onboarding-colorway-label-soft = Soft
+mr2-onboarding-colorway-label-balanced = Balance
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+mr2-onboarding-colorway-label-bold = Bold
+
+# Automatic theme uses operating system color settings
+mr2-onboarding-theme-label-auto = 自動
+
+# This string will be used for Default theme
+mr2-onboarding-theme-label-default = デフォルト
+
 mr1-onboarding-theme-header = 自分らしく
 mr1-onboarding-theme-subtitle = テーマで { -brand-short-name } をパーソナライズできます。
 mr1-onboarding-theme-primary-button-label = テーマを保存
@@ -248,3 +264,39 @@
 # Input description for Alpenglow theme
 mr1-onboarding-theme-description-alpenglow =
   .aria-description = ダイナミックでカラフルな外観のボタン、メニュー、ウインドウを使用します。
+
+# Tooltip displayed on hover of non-default colorway theme
+# variations e.g. soft, balanced, bold
+mr2-onboarding-theme-tooltip =
+  .title = このカラーテーマを使います。
+
+# Selector description for non-default colorway theme
+# variations e.g. soft, balanced, bold
+mr2-onboarding-theme-description =
+  .aria-description = このカラーテーマを使います。
+
+# Tooltip displayed on hover of colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-tooltip =
+  .title = { $colorwayName } のカラーテーマを見てみます。
+
+# Selector description for colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-description =
+  .aria-description = { $colorwayName } のカラーテーマを見てみます
+
+# Tooltip displayed on hover of default themes
+mr2-onboarding-default-theme-tooltip =
+  .title = デフォルトテーマを見てみます。
+
+# Selector description for default themes
+mr2-onboarding-default-theme-description =
+  .aria-description = デフォルトテーマを見てみます。
+
+## Strings for Thank You page
+
+mr2-onboarding-thank-you-header = ありがとうございます
+mr2-onboarding-thank-you-text = { -brand-short-name } は非営利を背景とする独立したブラウザーです。私たちはユーザーとともにウェブをより安全、健全にし、個人情報を保護していきます。
+mr2-onboarding-start-browsing-button-label = ブラウジングを開始
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/places.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/places.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/places.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/places.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -95,6 +95,11 @@
 places-remove-bookmark =
     .label = ブックマークを削除
     .accesskey = e
+
+places-show-in-folder =
+  .label = フォルダーで表示
+  .accesskey = F
+
 # Variables:
 # $count (number) - The number of elements being selected for removal.
 places-delete-bookmark =
@@ -119,7 +124,7 @@
     .label = 管理
     .tooltiptext = 履歴とブックマークを管理します
 places-file-close =
-    .label = ウインドウを閉じる
+    .label = 閉じる
     .accesskey = C
 places-cmd-close =
     .key = w
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/screenshots.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/screenshots.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/screenshots.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/screenshots.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -6,6 +6,9 @@
   .label = スクリーンショット
   .tooltiptext = スクリーンショットを撮影します
 
+screenshot-shortcut =
+  .key = S
+
 screenshots-instructions = ページをドラッグまたはクリックして範囲を選択してください。ESC キーを押すとキャンセルできます。
 screenshots-cancel-button = キャンセル
 screenshots-save-visible-button = 表示範囲を保存
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/upgradeDialog.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/upgradeDialog.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ja-JP-mac/browser/browser/upgradeDialog.ftl	2021-10-17 14:47:08.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ja-JP-mac/browser/browser/upgradeDialog.ftl	2021-10-20 19:34:38.000000000 +0000
@@ -61,6 +61,32 @@
 upgrade-dialog-theme-title-2 = できたてのテーマで新しく始める
 upgrade-dialog-theme-system = システムテーマ
     .title = OS のボタン、メニュー、ウインドウの外観です
+
+## Start screen
+
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-start-title = カラーテーマ
+upgrade-dialog-start-subtitle = 新しいカラーテーマが期間限定で利用できます。
+upgrade-dialog-start-primary-button = カラーテーマを見てみる
+upgrade-dialog-start-secondary-button = 後で
+
+## Colorway screen
+
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-colorway-title = パレットを選ぶ
+# This is shown to users with a custom home page, so they can switch to default.
+upgrade-dialog-colorway-home-checkbox = Firefox Home をテーマの背景に切り替える
+upgrade-dialog-colorway-primary-button = テーマを保存
+upgrade-dialog-colorway-secondary-button = 以前のテーマ
+upgrade-dialog-colorway-theme-tooltip =
+    .title = デフォルトテーマを見てみます
+# $colorwayName (String) - Name of colorway, e.g., Abstract, Cheers
+upgrade-dialog-colorway-colorway-tooltip =
+    .title = { $colorwayName } のカラーテーマを見てみます
+upgrade-dialog-colorway-default-theme = デフォルト
+# "Auto" is short for "Automatic"
+upgrade-dialog-colorway-theme-auto = 自動
+    .title = ボタンやメニュー、ウインドウについてオペレーティングシステムの設定に従います
 upgrade-dialog-theme-light = Light
     .title = 明るい外観のボタン、メニュー、ウインドウを使用します
 upgrade-dialog-theme-dark = Dark
@@ -71,3 +97,18 @@
     .title = { -brand-short-name } を更新する前にインストールしていたテーマを使用します
 upgrade-dialog-theme-primary-button = テーマを保存
 upgrade-dialog-theme-secondary-button = 後で
+upgrade-dialog-colorway-variation-soft = Soft
+    .title = このカラーテーマを使う
+upgrade-dialog-colorway-variation-balanced = Balance
+    .title = このカラーテーマを使う
+# "Bold" is used in the sense of bravery or courage, not in the sense of
+# emphasized text.
+upgrade-dialog-colorway-variation-bold = Bold
+    .title = このカラーテーマを使う
+
+## Thank you screen
+
+# This title can be explicitly wrapped to control which words are on which line.
+upgrade-dialog-thankyou-title = ありがとうございます
+upgrade-dialog-thankyou-subtitle = { -brand-short-name } は非営利を背景とする独立したブラウザーです。私たちはユーザーとともにウェブをより安全、健全にし、個人情報を保護していきます。
+upgrade-dialog-thankyou-primary-button = ブラウジングを開始
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ka/browser/browser/nsserrors.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ka/browser/browser/nsserrors.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ka/browser/browser/nsserrors.ftl	2021-10-17 14:47:12.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ka/browser/browser/nsserrors.ftl	2021-10-20 19:34:45.000000000 +0000
@@ -12,20 +12,16 @@
 # $hostname (String) - Hostname of the website with SSL error.
 # $errorMessage (String) - Error message corresponding to the type of error we are experiencing.
 ssl-connection-error = შეცდომა დაკავშირებისას - { $hostname }. { $errorMessage }
-
 # Variables:
 # $error (string) - NSS error code string that specifies type of cert error. e.g. unknown issuer, invalid cert, etc.
 cert-error-code-prefix = შეცდომის კოდი: { $error }
-
 psmerr-ssl-disabled = უსაფრთხო დაკავშირება ვერ ხერხდება, რადგან SSL ოქმი ამორთულია.
 psmerr-ssl2-disabled = უსაფრთხო დაკავშირება ვერ ხერხდება, რადგან საიტი SSL ოქმის მოძველებულ ვერსიას იყენებს.
-
 # This is a multi-line message.
 psmerr-hostreusedissuerandserial =
     თქვენ უმართებულო სერტიფიკატი მიიღეთ.  გთხოვთ დაუკავშირდეთ სერვერის მმართველს ან ელფოსტის მოპასუხეს და მიაწოდოთ შემდეგი მონაცემები:
     
     თქვენი სერტიფიკატი შეიცავს იმავე სერიულ ნომერს, რაც ამ გამცემის მიერ გამოშვებული სხვა სერტიფიკატი.  გთხოვთ, გამოიყენოთ ახალი სერტიფიკატი, უნიკალური სერიული ნომრით.
-
 ssl-error-export-only-server = უსაფრთხო კავშირი ვერ ხერხდება. კვანძისთვის მაღალი დონის დაშიფვრა მიუღებელია.
 ssl-error-us-only-server = უსაფრთხო კავშირი ვერ ხერხდება. კვანძი ითხოვს მაღალი დონის დაშიფვრას, რაც უზრუნველყოფილი არაა.
 ssl-error-no-cypher-overlap = კვანძთან უსაფრთხო კავშირი ვერ ხერხდება: არ გააჩნია დაშიფვრის ცნობილი ალგორითმ(ებ)ი.
@@ -310,7 +306,7 @@
 sec-error-revoked-certificate-crl = სერტიფიკატი ძალადაკარგულია გამომცემლის ძალადაკარგული სერტიფიკატების სიაში.
 sec-error-revoked-certificate-ocsp = გამომცემლის OCSP მოპასუხის პატაკის თანახმად სერტიფიკატი ძალადაკარგულია.
 sec-error-crl-invalid-version = გამომცემლის გაუქმებული სერტიფიკატების სიის ვერსია უცნობია.
-sec-error-crl-v1-critical-extension = გამომცემლის 1-ლი ვერსიის გაუქმებული სერტიფიკატების სიას, უცნობი სახის გაფართოება აქვს.
+sec-error-crl-v1-critical-extension = გამომცემლის 1-ელი ვერსიის გაუქმებული სერტიფიკატების სიას, უცნობი სახის გაფართოება აქვს.
 sec-error-crl-unknown-critical-extension = გამომცემლის მე-2 ვერსიის გაუქმებული სერტიფიკატების სიას, უცნობი სახის გაფართოება აქვს.
 sec-error-unknown-object-type = უცნობი სახის ობიექტია მითითებული.
 sec-error-incompatible-pkcs11 = PKCS #11 წამყვანი არღვევს სპეციფიკაციას და არათავსებადია.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ka/browser/browser/preferences/blocklists.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ka/browser/browser/preferences/blocklists.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ka/browser/browser/preferences/blocklists.ftl	2021-10-17 14:47:12.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ka/browser/browser/preferences/blocklists.ftl	2021-10-20 19:34:45.000000000 +0000
@@ -5,19 +5,14 @@
 blocklist-window =
     .title = შეზღუდულთა სია
     .style = width: 50em
-
 blocklist-description = აირჩიეთ სია, რომელსაც { -brand-short-name } გამოიყენებს ინტერნეტ-მეთვალყურეების შესაზღუდად. სიების მომწოდებელია <a data-l10n-name="disconnect-link" title="Disconnect">Disconnect</a>.
 blocklist-close-key =
     .key = w
-
 blocklist-treehead-list =
     .label = სია
-
 blocklist-dialog =
     .buttonlabelaccept = ცვლილებების შენახვა
     .buttonaccesskeyaccept = შ
-
-
 # This template constructs the name of the block list in the block lists dialog.
 # It combines the list name and description.
 # e.g. "Standard (Recommended). This list does a pretty good job."
@@ -26,8 +21,7 @@
 #   $listName {string, "Standard (Recommended)."} - List name.
 #   $description {string, "This list does a pretty good job."} - Description of the list.
 blocklist-item-list-template = { $listName } { $description }
-
-blocklist-item-moz-std-listName = 1-ლი დონის შეზღუდვის სია (სასურველია).
+blocklist-item-moz-std-listName = 1-ელი დონის შეზღუდვის სია (სასურველია).
 blocklist-item-moz-std-description = ზოგიერთი მეთვალყურე დაშვებულია, საიტების გამართულად მუშაობისთვის.
 blocklist-item-moz-full-listName = მე-2 დონის შეზღუდვის სია.
 blocklist-item-moz-full-description = ყველა აღმოჩენილი მეთვალყურე შეიზღუდება. ვებსაიტების ან შიგთავსის ნაწილი, შესაძლოა სათანადოდ არ ჩაიტვირთოს.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ka/security/manager/chrome/pipnss/nsserrors.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/ka/security/manager/chrome/pipnss/nsserrors.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ka/security/manager/chrome/pipnss/nsserrors.properties	2021-10-17 14:47:12.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ka/security/manager/chrome/pipnss/nsserrors.properties	2021-10-20 19:34:45.000000000 +0000
@@ -286,7 +286,7 @@
 SEC_ERROR_REVOKED_CERTIFICATE_CRL=სერტიფიკატი ძალადაკარგულია გამომცემლის ძალადაკარგული სერტიფიკატების სიაში.
 SEC_ERROR_REVOKED_CERTIFICATE_OCSP=გამომცემლის OCSP მოპასუხის პატაკის თანახმად სერტიფიკატი ძალადაკარგულია.
 SEC_ERROR_CRL_INVALID_VERSION=გამომცემლის გაუქმებული სერტიფიკატების სიის ვერსია უცნობია.
-SEC_ERROR_CRL_V1_CRITICAL_EXTENSION=გამომცემლის 1-ლი ვერსიის გაუქმებული სერტიფიკატების სიას, უცნობი სახის გაფართოება აქვს.
+SEC_ERROR_CRL_V1_CRITICAL_EXTENSION=გამომცემლის 1-ელი ვერსიის გაუქმებული სერტიფიკატების სიას, უცნობი სახის გაფართოება აქვს.
 SEC_ERROR_CRL_UNKNOWN_CRITICAL_EXTENSION=გამომცემლის მე-2 ვერსიის გაუქმებული სერტიფიკატების სიას, უცნობი სახის გაფართოება აქვს.
 SEC_ERROR_UNKNOWN_OBJECT_TYPE=უცნობი სახის ობიექტია მითითებული.
 SEC_ERROR_INCOMPATIBLE_PKCS11=PKCS #11 წამყვანი არღვევს სპეციფიკაციას და არათავსებადია.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ko/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/ko/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ko/browser/browser/aboutUnloads.ftl	2021-10-17 14:47:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ko/browser/browser/aboutUnloads.ftl	2021-10-20 19:35:15.000000000 +0000
@@ -17,7 +17,7 @@
 about-unloads-intro-2 =
     기존 탭은 { -brand-short-name }가 언로드할 다음 탭을 선택하는데 사용한 것과 
     동일한 순서로 아래 표에 표시됩니다. 프로세스 ID는 탭의 상단 프레임을 호스팅할 때 
-    <strong>굵게</strong> 표시되고, 프로세스가 다른 탭 간에 공유될 때 <em>이탤릭체</em>로 
+    <strong>굵게</strong> 표시되고, 프로세스가 다른 탭 간에 공유될 때 <em>기울임꼴</em>로 
     표시됩니다. 아래의 <em>언로드</em> 버튼을 클릭하여 탭 언로드를 수동으로 실행할 
     수 있습니다.
 about-unloads-intro =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/ko/devtools/client/font-inspector.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/ko/devtools/client/font-inspector.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/ko/devtools/client/font-inspector.properties	2021-10-17 14:47:33.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/ko/devtools/client/font-inspector.properties	2021-10-20 19:35:15.000000000 +0000
@@ -41,7 +41,7 @@
 
 # LOCALIZATION NOTE (fontinspector.fontItalicLabel): This label is shown next to the UI
 # in the font editor which allows the user to change the style of the font to italic.
-fontinspector.fontItalicLabel=기울임
+fontinspector.fontItalicLabel=기울임꼴
 
 # LOCALIZATION NOTE (fontinspector.showMore): Label for a collapsed list of fonts.
 fontinspector.showMore=더 보기
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/lij/browser/browser/aboutLogins.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/lij/browser/browser/aboutLogins.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/lij/browser/browser/aboutLogins.ftl	2021-10-17 14:47:36.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/lij/browser/browser/aboutLogins.ftl	2021-10-20 19:35:20.000000000 +0000
@@ -4,14 +4,9 @@
 # NOTE: New strings should use the about-logins- prefix.
 
 about-logins-page-title = Login e Poule segrete
-
-# "Google Play" and "App Store" are both branding and should not be translated
-
 login-filter =
     .placeholder = Çerca inti login
-
 create-login-button = Crea neuvo login
-
 fxaccounts-sign-in-sync-button = Acedi a sync
 fxaccounts-avatar-button =
     .title = Gestisci conto
@@ -44,11 +39,13 @@
 login-list-sort-label-text = Ordina pe:
 login-list-name-option = Nommi (A-Z)
 login-list-name-reverse-option = Nommi (Z-A)
+login-list-username-reverse-option = Nomme utente (Z-A)
 about-logins-login-list-alerts-option = Alarmi
 login-list-last-changed-option = Urtimo cangiamento
 login-list-last-used-option = Urtima vòtta
 login-list-intro-title = Nisciun acesso trovou
 about-logins-login-list-empty-search-title = Nisciun acesso trovou
+about-logins-login-list-empty-search-description = No gh'é exiti da teu riçerca
 login-list-item-title-new-login = Nuovo login
 login-list-item-subtitle-new-login = Scrivi e teu credensiali
 login-list-item-subtitle-missing-username = (nisciun nomme utente)
@@ -56,9 +53,16 @@
     .title = Scito ch'o viola i dæti
 about-logins-list-item-vulnerable-password-icon =
     .title = Poula segreta vulnerabile
+about-logins-list-section-breach = Scito con violaçioin
+about-logins-list-section-vulnerable = Poula segreta vulnerabile
+about-logins-list-section-nothing = Nisciun avizo
+about-logins-list-section-today = Ancheu
+about-logins-list-section-yesterday = Vei
+about-logins-list-section-week = Urtimi 7 giorni
 
 ## Introduction screen
 
+
 ## Login
 
 login-item-new-login-title = Crea neuvo acesso
@@ -95,41 +99,39 @@
 # This message can be seen when attempting to edit a login in about:logins
 # On MacOS, only provide the reason that account verification is needed. Do not put a complete sentence here.
 about-logins-edit-login-os-auth-dialog-message-macosx = cangia l'acesso sarvou
-
 # This message can be seen when attempting to reveal a password in about:logins
 # On MacOS, only provide the reason that account verification is needed. Do not put a complete sentence here.
 about-logins-reveal-password-os-auth-dialog-message-macosx = mostra e poule segrete
 
-## Master Password notification
-
 ## Primary Password notification
 
 master-password-reload-button =
     .label = Intra
     .accesskey = I
 
-## Password Sync notification
-
 ## Dialogs
 
 confirmation-dialog-cancel-button = Anulla
 confirmation-dialog-dismiss-button =
     .title = Anulla
-
 about-logins-confirm-remove-dialog-title = Scancelâ st'acesso?
 confirm-delete-dialog-message = St'açion a no peu ese anula.
 about-logins-confirm-remove-dialog-confirm-button = Scancella
-
 about-logins-confirm-export-dialog-title = Espòrta acessi e poule segrete
 about-logins-confirm-export-dialog-confirm-button = Espòrta…
-
+about-logins-alert-import-title = Inportaçion terminâ
 confirm-discard-changes-dialog-confirm-button = Ignòra
 
 ## Breach Alert notification
 
+# Variables:
+#   $hostname (String) - The hostname of the website associated with the login, e.g. "example.com"
+about-logins-breach-alert-link = Vànni a { $hostname }
+about-logins-breach-alert-learn-more-link = Atre informaçioin
 
 ## Vulnerable Password notification
 
+about-logins-vulnerable-alert-title = Poula segreta vulnerabile
 # Variables:
 #   $hostname (String) - The hostname of the website associated with the login, e.g. "example.com"
 about-logins-vulnerable-alert-link = Vànni a { $hostname }
@@ -139,6 +141,10 @@
 
 ## Login Export Dialog
 
+# The default file name shown in the file picker when exporting saved logins.
+# This must end in .csv
+about-logins-export-file-picker-default-filename = acesci.csv
+about-logins-export-file-picker-export-button = Espòrta
 # A description for the .csv file format that may be shown as the file type
 # filter by the operating system.
 about-logins-export-file-picker-csv-filter-title =
@@ -149,11 +155,34 @@
 
 ## Login Import Dialog
 
+# Title of the file picker dialog
+about-logins-import-file-picker-title = Inpòrta file de acesso
+about-logins-import-file-picker-import-button = Inpòrta
+# A description for the .csv file format that may be shown as the file type
+# filter by the operating system.
+about-logins-import-file-picker-csv-filter-title =
+    { PLATFORM() ->
+        [macos] Documento CSV
+       *[other] Schedaio CSV
+    }
+# A description for the .tsv file format that may be shown as the file type
+# filter by the operating system. TSV is short for 'tab separated values'.
+about-logins-import-file-picker-tsv-filter-title =
+    { PLATFORM() ->
+        [macos] Documento TSV
+       *[other] Schedaio TSV
+    }
 
 ##
 ## Variables:
 ##  $count (number) - The number of affected elements
 
+about-logins-import-dialog-title = Inportaçion terminâ
+about-logins-import-dialog-error-cancel = Anulla
+#
+# Variables:
+#  $number (number) - The number of the row
+about-logins-import-report-row-index = Linia { $number }
 
 ##
 ## Variables:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/nb-NO/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/nb-NO/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/nb-NO/browser/browser/aboutUnloads.ftl	2021-10-17 14:47:59.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/nb-NO/browser/browser/aboutUnloads.ftl	2021-10-20 19:36:00.000000000 +0000
@@ -20,6 +20,18 @@
     ramme, og med <em>kursiv</em> når prosessen deles mellom forskjellige
     faner. Du kan utløse frigjøring av faner manuelt ved å klikke på <em>Frigjør</em>-
     knappen nedenfor.
+about-unloads-intro =
+    { -brand-short-name } har en funksjon som automatisk frigjør faner
+    for å forhindre programmet i å krajse når systemet har lite minne.
+    Den neste fanen som skal frigjøres er utvalgt basert på flere kriterer.
+    Denne siden viser hvordan { -brand-short-name } prioriterer mellom fanene, og hvilken faner som frigjøres
+    når fanefrigjøring er nødvendig. Du kan manuelt frigjøre faner
+    ved å klikke på <em>Frigjør</em>-knappen nedenfor.
+# The link points to a Firefox documentation page, only available in English,
+# with title "Tab Unloading"
+about-unloads-learn-more =
+    Se <a data-l10n-name="doc-link">Frigjør fane</a> for å lære mer om
+    funksjonen og denne siden.
 about-unloads-last-updated = Sist oppdatert: { DATETIME($date, year: "numeric", month: "numeric", day: "numeric", hour: "numeric", minute: "numeric", second: "numeric", hour12: "false") }
 about-unloads-button-unload = Frigjør
     .title = Frigjør fanen med høyeste prioritet
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/nb-NO/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/nb-NO/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/nb-NO/browser/browser/appmenu.ftl	2021-10-17 14:47:59.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/nb-NO/browser/browser/appmenu.ftl	2021-10-20 19:36:00.000000000 +0000
@@ -118,6 +118,12 @@
 profiler-popup-button-idle =
     .label = Profiler
     .tooltiptext = Ta opp en ytelses-profil
+profiler-popup-button-recording =
+    .label = Profiler
+    .tooltiptext = Profileren registrerer en profil
+profiler-popup-button-capturing =
+    .label = Profiler
+    .tooltiptext = Profileren tar opp en profil
 profiler-popup-title =
     .value = { -profiler-brand-name }
 profiler-popup-reveal-description-button =
@@ -168,6 +174,19 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
+profiler-popup-presets-web-developer-description = Anbefalt forhåndsinnstilling for de fleste feilsøkinger i nettapper, med lite tillegg.
+profiler-popup-presets-web-developer-label =
+    .label = Nettsideutvikling
+profiler-popup-presets-firefox-platform-description = Anbefalt forhåndsinnstilling for intern feilsøking av Firefox-plattformen.
+profiler-popup-presets-firefox-platform-label =
+    .label = Firefox-plattform
+profiler-popup-presets-firefox-front-end-description = Anbefalt forhåndsinnstilling for feilsøking av Firefox grenseflate.
+profiler-popup-presets-firefox-front-end-label =
+    .label = Firefox grenseflate
+profiler-popup-presets-firefox-graphics-description = Anbefalt forhåndsinnstilling for undersøkelse av grafikkytelse i Firefox.
+profiler-popup-presets-firefox-graphics-label =
+    .label = Firefox-grafikk
+profiler-popup-presets-media-description = Anbefalt forhåndsinnstilling for diagnostisering av lyd- og videoproblemer.
 profiler-popup-presets-media-label =
     .label = Media
 profiler-popup-presets-custom-label =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/oc/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/oc/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/oc/browser/browser/appmenu.ftl	2021-10-17 14:48:12.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/oc/browser/browser/appmenu.ftl	2021-10-20 19:36:28.000000000 +0000
@@ -168,8 +168,23 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
+profiler-popup-presets-web-developer-description = Reglatge recomandat pel desbugatge de la màger part de las aplicacions amb pauca subrecarga.
 profiler-popup-presets-web-developer-label =
     .label = Desvolopaire web
+profiler-popup-presets-firefox-platform-description = Reglatge recomandat pel desbugatge intèrne de la platafòrma Firefox.
+profiler-popup-presets-firefox-platform-label =
+    .label = Platafòrma Firefox
+profiler-popup-presets-firefox-front-end-description = Reglatge recomandat pel desbugatge intèrne de l’interfàcia Firefox.
+profiler-popup-presets-firefox-front-end-label =
+    .label = Interfàcia Firefox
+profiler-popup-presets-firefox-graphics-description = Reglatge recomandat pels estudis de las performanças graficas de Firefox.
+profiler-popup-presets-firefox-graphics-label =
+    .label = Grafics de Firefox
+profiler-popup-presets-media-description = Reglatge recomandat pel diagnosticar los problèmas àudio e vidèo.
+profiler-popup-presets-media-label =
+    .label = Multimèdia
+profiler-popup-presets-custom-label =
+    .label = Personalizats
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/oc/browser/browser/places.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/oc/browser/browser/places.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/oc/browser/browser/places.ftl	2021-10-17 14:48:12.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/oc/browser/browser/places.ftl	2021-10-20 19:36:28.000000000 +0000
@@ -110,6 +110,9 @@
            *[other] Suprimir los marcapaginas
         }
     .accesskey = S
+places-show-in-folder =
+    .label = Mostrar dins Finder
+    .accesskey = M
 # Variables:
 # $count (number) - The number of elements being selected for removal.
 places-delete-bookmark =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/oc/devtools/client/perftools.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/oc/devtools/client/perftools.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/oc/devtools/client/perftools.ftl	2021-10-17 14:48:12.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/oc/devtools/client/perftools.ftl	2021-10-20 19:36:28.000000000 +0000
@@ -41,9 +41,7 @@
 
 # The size of the memory buffer used to store things in the profiler.
 perftools-range-entries-label = Talha del tap :
-
 perftools-custom-threads-label = Apondre de fils d’execucion personalizats per nom :
-
 perftools-devtools-interval-label = Interval :
 perftools-devtools-threads-label = Fils d’execucion :
 perftools-devtools-settings-label = Paramètres
@@ -102,7 +100,6 @@
 ##
 
 perftools-record-all-registered-threads = Ignorar las seleccion al dessús e enregistrar totes los fils
-
 perftools-tools-threads-input-label =
     .title = Aquestes noms de fil d’execucion son una lista separada per de virgulas utilizada per activar lo perfilatge dels fils dins lo perfilador. Lo nom fa sonque mestièr d’una correspondéncia parciala del nom del fil d’inclure. Es sensible als espacis.
 
@@ -111,9 +108,29 @@
 ## preferences are true.
 
 perftools-onboarding-message = <b>Novetat</b> { -profiler-brand-name } es ara integ{ -profiler-brand-name }rat a las aisinas de desvolopaire. <a>Ne saber mai</a> a prepaus d’aquesta aisina novèla.
-
 # `options-context-advanced-settings` is defined in toolbox-options.ftl
 perftools-onboarding-reenable-old-panel = (Per una durada limitada, avètz accès al panèl original de performanças via <a>{ options-context-advanced-settings }</a>)
-
 perftools-onboarding-close-button =
     .aria-label = Tampar lo messatge d’acuèlh
+
+## Profiler presets
+
+
+# Presets and their l10n IDs are defined in the file
+# devtools/client/performance-new/popup/background.jsm.js
+# The same labels and descriptions are also defined in appmenu.ftl.
+
+perftools-presets-web-developer-label = Desvolopaire web
+perftools-presets-web-developer-description = Reglatge recomandat pel desbugatge de la màger part de las aplicacions amb pauca subrecarga.
+perftools-presets-firefox-platform-label = Platafòrma Firefox
+perftools-presets-firefox-platform-description = Reglatge recomandat pel desbugatge intèrne de la platafòrma Firefox.
+perftools-presets-firefox-front-end-label = Interfàcia Firefox
+perftools-presets-firefox-front-end-description = Reglatge recomandat pel desbugatge intèrne de l’interfàcia Firefox.
+perftools-presets-firefox-graphics-label = Grafics de Firefox
+perftools-presets-firefox-graphics-description = Reglatge recomandat pels estudis de las performanças graficas de Firefox.
+perftools-presets-media-label = Multimèdia
+perftools-presets-media-description = Reglatge recomandat pel diagnosticar los problèmas àudio e vidèo.
+perftools-presets-custom-label = Personalizat
+
+##
+
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/oc/dom/chrome/dom/dom.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/oc/dom/chrome/dom/dom.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/oc/dom/chrome/dom/dom.properties	2021-10-17 14:48:12.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/oc/dom/chrome/dom/dom.properties	2021-10-20 19:36:28.000000000 +0000
@@ -421,3 +421,6 @@
 ElementReleaseCaptureWarning=Element.releaseCapture() es obsolèt. Utilizatz Element.releasePointerCapture() a la plaça. Per mai d’informacions https://developer.mozilla.org/fr/docs/Web/API/Element/releasePointerCapture
 # LOCALIZATION NOTE: Do not translate "Document.releaseCapture()" and "Element.releasePointerCapture()".
 DocumentReleaseCaptureWarning=Document.releaseCapture() es obsolèt. Utilizatz Element.releasePointerCapture() a la plaça. Per mai d’informacions https://developer.mozilla.org/fr/docs/Web/API/Element/releasePointerCapture
+
+# LOCALIZATION NOTE: Don't translate browser.runtime.lastError, %S is the error message from the unchecked value set on browser.runtime.lastError.
+WebExtensionUncheckedLastError=La valor browser.runtime.lastError es pas estat verificada : %S
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/oc/toolkit/toolkit/global/run-from-dmg.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/oc/toolkit/toolkit/global/run-from-dmg.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/oc/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-17 14:48:12.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/oc/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-20 19:36:28.000000000 +0000
@@ -17,3 +17,12 @@
 
 install-failed-title = Installacion de { -brand-short-name } copada.
 install-failed-message = Installacion de { -brand-short-name } fracassada mas tendrà de s’executar.
+
+## Strings for a dialog that recommends to the user to start an existing
+## installation of the app in the Applications directory if one is detected,
+## rather than the app that was double-clicked in a .dmg.
+
+prompt-to-launch-existing-app-title = Dobrir l’aplicacion{ -brand-short-name } existenta ?
+prompt-to-launch-existing-app-message = Avètz ja { -brand-short-name } d’installat. Utilizatz l’aplicacion installada per demorar a jorn e evitar una pèrda de donadas.
+prompt-to-launch-existing-app-yes-button = Dobrir l’existenta
+prompt-to-launch-existing-app-no-button = Non, mercé
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-BR/browser/browser/newtab/asrouter.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-BR/browser/browser/newtab/asrouter.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-BR/browser/browser/newtab/asrouter.ftl	2021-10-17 14:48:22.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-BR/browser/browser/newtab/asrouter.ftl	2021-10-20 19:36:53.000000000 +0000
@@ -12,33 +12,25 @@
 
 cfr-doorhanger-extension-sumo-link =
     .tooltiptext = Por que isso apareceu
-
 cfr-doorhanger-extension-cancel-button = Agora não
     .accesskey = n
-
 cfr-doorhanger-extension-ok-button = Adicionar agora
     .accesskey = A
-
 cfr-doorhanger-extension-manage-settings-button = Gerenciar configuração de recomendações
     .accesskey = m
-
 cfr-doorhanger-extension-never-show-recommendation = Não mostrar esta recomendação
     .accesskey = s
-
 cfr-doorhanger-extension-learn-more-link = Saiba mais
-
 # This string is used on a new line below the add-on name
 # Variables:
 #   $name (String) - Add-on author name
 cfr-doorhanger-extension-author = por { $name }
-
 # This is a notification displayed in the address bar.
 # When clicked it opens a panel with a message for the user.
 cfr-doorhanger-extension-notification = Recomendação
 cfr-doorhanger-extension-notification2 = Recomendação
     .tooltiptext = Recomendação de extensão
     .a11y-announcement = Disponível uma recomendação de extensão
-
 # This is a notification displayed in the address bar.
 # When clicked it opens a panel with a message for the user.
 cfr-doorhanger-feature-notification = Recomendação
@@ -65,8 +57,6 @@
        *[other] { $total } usuários
     }
 
-## These messages are steps on how to use the feature and are shown together.
-
 ## Firefox Accounts Message
 
 cfr-doorhanger-bookmark-fxa-header = Sincronize seus favoritos em qualquer lugar.
@@ -79,7 +69,7 @@
 ## Protections panel
 
 cfr-protections-panel-header = Navegue sem ser seguido
-cfr-protections-panel-body = Mantenha seus dados com você. O { -brand-short-name } te protege de muitos dos rastreadores mais comuns que tentam seguir o que você faz online.
+cfr-protections-panel-body = Defenda seus dados. O { -brand-short-name } te protege de muitos dos rastreadores mais comuns que tentam seguir o que você faz online.
 cfr-protections-panel-link-text = Saiba mais
 
 ## What's New toolbar button and panel
@@ -87,31 +77,11 @@
 # This string is used by screen readers to offer a text based alternative for
 # the notification icon
 cfr-badge-reader-label-newfeature = Novo recurso:
-
 cfr-whatsnew-button =
     .label = Novidades
     .tooltiptext = Novidades
-
 cfr-whatsnew-release-notes-link-text = Ler as notas de atualização
 
-## Search Bar
-
-## Picture-in-Picture
-
-## Permission Prompt
-
-## Fingerprinter Counter
-
-## Bookmark Sync
-
-## Login Sync
-
-## Send Tab
-
-## Firefox Send
-
-## Social Tracking Protection
-
 ## Enhanced Tracking Protection Milestones
 
 # Variables:
@@ -124,20 +94,6 @@
     }
 cfr-doorhanger-milestone-ok-button = Ver tudo
     .accesskey = V
-
-## What’s New Panel Content for Firefox 76
-
-
-## Lockwise message
-
-## Vulnerable Passwords message
-
-## Picture-in-Picture fullscreen message
-
-## Protections Dashboard message
-
-## Better PDF message
-
 cfr-doorhanger-milestone-close-button = Fechar
     .accesskey = F
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/browser/browser/aboutUnloads.ftl	2021-10-17 14:48:26.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/browser/browser/aboutUnloads.ftl	2021-10-20 19:37:08.000000000 +0000
@@ -21,6 +21,19 @@
     e a <em>itálico</em> quando o processo é partilhado entre diferentes separadores. 
     Pode despoletar a suspensão de separadores de forma manual clicando no botão 
     <em>Suspender</em> abaixo.
+about-unloads-intro =
+    O { -brand-short-name } tem uma nova funcionalidade que suspende separadores automaticamente 
+    para impedir que a aplicação falhe devido à indisponibilidade de memória 
+    quando existe pouca memória disponível. O próximo separador a ser suspenso 
+    é selecionado com base em múltiplos atributos. Esta página mostra como 
+    o { -brand-short-name } prioriza separadores e que separador será suspenso
+    quando a suspensão de separadores for ativada. Pode despoletar a suspensão 
+    de separadores manualmente ativando o botão <em>Suspender</em> abaixo.
+# The link points to a Firefox documentation page, only available in English,
+# with title "Tab Unloading"
+about-unloads-learn-more =
+    Consulte <a data-l10n-name="doc-link">Suspensão de separadores</a> para saber mais sobre
+    a funcionalidade e esta página.
 about-unloads-last-updated = Última atualização: { DATETIME($date, year: "numeric", month: "numeric", day: "numeric", hour: "numeric", minute: "numeric", second: "numeric", hour12: "false") }
 about-unloads-button-unload = Suspender
     .title = Suspender o separador com a máxima prioridade
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/browser/browser/appmenu.ftl	2021-10-17 14:48:26.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/browser/browser/appmenu.ftl	2021-10-20 19:37:08.000000000 +0000
@@ -118,6 +118,12 @@
 profiler-popup-button-idle =
     .label = Profiler
     .tooltiptext = Grave um perfil de desempenho
+profiler-popup-button-recording =
+    .label = Profiler
+    .tooltiptext = O profiler está a gravar um perfil
+profiler-popup-button-capturing =
+    .label = Profiler
+    .tooltiptext = O profiler está a capturar um perfil
 profiler-popup-title =
     .value = { -profiler-brand-name }
 profiler-popup-reveal-description-button =
@@ -168,6 +174,23 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
+profiler-popup-presets-web-developer-description = Predefinição recomendada para a maioria das depurações de aplicações web, com pouca sobrecarga.
+profiler-popup-presets-web-developer-label =
+    .label = Programador web
+profiler-popup-presets-firefox-platform-description = Predefinição recomendada para a depuração da plataforma interna do Firefox.
+profiler-popup-presets-firefox-platform-label =
+    .label = Plataforma Firefox
+profiler-popup-presets-firefox-front-end-description = Predefinição recomendada para a depuração do front-end interno do Firefox.
+profiler-popup-presets-firefox-front-end-label =
+    .label = Front-End do Firefox
+profiler-popup-presets-firefox-graphics-description = Predefinição recomendada para a investigação de desempenho gráfico do Firefox.
+profiler-popup-presets-firefox-graphics-label =
+    .label = Gráficos do Firefox
+profiler-popup-presets-media-description = Predefinição recomendada para diagnosticar problemas de áudio e vídeo.
+profiler-popup-presets-media-label =
+    .label = Multimédia
+profiler-popup-presets-custom-label =
+    .label = Personalizada
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/browser/browser/places.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/browser/browser/places.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/browser/browser/places.ftl	2021-10-17 14:48:26.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/browser/browser/places.ftl	2021-10-20 19:37:08.000000000 +0000
@@ -108,6 +108,9 @@
            *[other] Remover marcadores
         }
     .accesskey = e
+places-show-in-folder =
+    .label = Mostrar na pasta
+    .accesskey = M
 # Variables:
 # $count (number) - The number of elements being selected for removal.
 places-delete-bookmark =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/devtools/client/perftools.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/devtools/client/perftools.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/devtools/client/perftools.ftl	2021-10-17 14:48:26.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/devtools/client/perftools.ftl	2021-10-20 19:37:08.000000000 +0000
@@ -40,9 +40,7 @@
 
 # The size of the memory buffer used to store things in the profiler.
 perftools-range-entries-label = Tamanho do buffer:
-
 perftools-custom-threads-label = Adicionar threads personalizadas por nome:
-
 perftools-devtools-interval-label = Intervalo:
 perftools-devtools-threads-label = Threads:
 perftools-devtools-settings-label = Definições
@@ -95,14 +93,12 @@
     .title = Threads de descodificação de imagem
 perftools-thread-dns-resolver =
     .title = A resolução de DNS acontece nesta thread
-
 perftools-thread-task-controller =
     .title = Threads do conjunto de threads do TaskController
 
 ##
 
 perftools-record-all-registered-threads = Ignora as seleções acima e grava todas as threads registadas
-
 perftools-tools-threads-input-label =
     .title = Estes nomes de threads são uma lista separada por vírgulas que é utilizada para ativar o profiling das threads no profiler. O nome apenas necessita de ser uma correspondência parcial do nome da thread para ser incluído. É sensível a espaços em branco.
 
@@ -111,9 +107,29 @@
 ## preferences are true.
 
 perftools-onboarding-message = <b>Novo</b>: O { -profiler-brand-name } está agora integrado nas ferramentas de desenvolvimento. <a>Saber mais</a> sobre esta poderosa nova ferramenta.
-
 # `options-context-advanced-settings` is defined in toolbox-options.ftl
 perftools-onboarding-reenable-old-panel = (Por tempo limitado, pode aceder ao painel Desempenho original via  <a>{ options-context-advanced-settings }</a>)
-
 perftools-onboarding-close-button =
     .aria-label = Fechar mensagem de introdução
+
+## Profiler presets
+
+
+# Presets and their l10n IDs are defined in the file
+# devtools/client/performance-new/popup/background.jsm.js
+# The same labels and descriptions are also defined in appmenu.ftl.
+
+perftools-presets-web-developer-label = Programador Web
+perftools-presets-web-developer-description = Predefinição recomendada para a maioria das depurações de aplicações web, com pouca sobrecarga.
+perftools-presets-firefox-platform-label = Plataforma Firefox
+perftools-presets-firefox-platform-description = Predefinição recomendada para a depuração da plataforma interna do Firefox.
+perftools-presets-firefox-front-end-label = Front-End do Firefox
+perftools-presets-firefox-front-end-description = Predefinição recomendada para a depuração do front-end interno do Firefox.
+perftools-presets-firefox-graphics-label = Gráficos do Firefox
+perftools-presets-firefox-graphics-description = Predefinição recomendada para a investigação de desempenho gráfico do Firefox.
+perftools-presets-media-label = Multimédia
+perftools-presets-media-description = Predefinição recomendada para diagnosticar problemas de áudio e vídeo.
+perftools-presets-custom-label = Personalizada
+
+##
+
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/dom/chrome/dom/dom.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/dom/chrome/dom/dom.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/dom/chrome/dom/dom.properties	2021-10-17 14:48:26.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/dom/chrome/dom/dom.properties	2021-10-20 19:37:08.000000000 +0000
@@ -421,3 +421,6 @@
 ElementReleaseCaptureWarning=Element.releaseCapture () está obsoleto. Como alternativa, utilize Element.releasePointerCapture(). Para obter mais ajuda, consulte https://developer.mozilla.org/docs/Web/API/Element/releasePointerCapture
 # LOCALIZATION NOTE: Do not translate "Document.releaseCapture()" and "Element.releasePointerCapture()".
 DocumentReleaseCaptureWarning=Document.releaseCapture () está obsoleto. Como alternativa, utilize Element.releasePointerCapture(). Para obter mais ajuda, consulte https://developer.mozilla.org/docs/Web/API/Element/releasePointerCapture
+
+# LOCALIZATION NOTE: Don't translate browser.runtime.lastError, %S is the error message from the unchecked value set on browser.runtime.lastError.
+WebExtensionUncheckedLastError=O valor de browser.runtime.lastError não foi verificado: %S
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/toolkit/toolkit/global/run-from-dmg.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/toolkit/toolkit/global/run-from-dmg.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/pt-PT/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-17 14:48:26.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/pt-PT/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-20 19:37:08.000000000 +0000
@@ -17,3 +17,12 @@
 
 install-failed-title = A instalação do { -brand-short-name } falhou.
 install-failed-message = A instalação do { -brand-short-name } falhou mas irá continuar a funcionar.
+
+## Strings for a dialog that recommends to the user to start an existing
+## installation of the app in the Applications directory if one is detected,
+## rather than the app that was double-clicked in a .dmg.
+
+prompt-to-launch-existing-app-title = Abrir aplicação { -brand-short-name } existente?
+prompt-to-launch-existing-app-message = Já tem o { -brand-short-name } instalado. Utilize a aplicação instalada para se manter atualizado e evitar a perda de dados.
+prompt-to-launch-existing-app-yes-button = Abrir existente
+prompt-to-launch-existing-app-no-button = Não, obrigado
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/rm/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/rm/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/rm/browser/browser/aboutUnloads.ftl	2021-10-17 14:48:29.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/rm/browser/browser/aboutUnloads.ftl	2021-10-20 19:37:14.000000000 +0000
@@ -21,6 +21,19 @@
     tab, e <em>cursiv</em> sch'il process vegn cundividì tranter differents tabs. Ti
     pos lantschar manualmain la stgargiada da tabs cun cliccar sin il buttun <em>Stgargiar</em>
     sutvart.
+about-unloads-intro =
+    { -brand-short-name } ha ina funcziun che stgargia automaticamain tabs
+    per evitar che l'applicaziun collabeschia en consequenza da mancanza da
+    memoria, en cas che la memoria disponibla dal sistem è insuffizienta. Il proxim
+    tab che vegn stgargià, vegn tschernì a basa da plirs attributs. Questa pagina
+    mussa co { -brand-short-name } priorisescha tabs e tgenin tab che vegn stgargià
+    en cas che la funcziun da stgargiada vegn lantschada. Ti pos lantschar 
+    manualmain la stgargiada da tabs cun cliccar sin il buttun <em>Stgargiar</em> sutvart.
+# The link points to a Firefox documentation page, only available in English,
+# with title "Tab Unloading"
+about-unloads-learn-more =
+    Consultar <a data-l10n-name="doc-link">Stgargiada da tabs</a> per vegnir a savair
+    dapli davart la funcziun e questa pagina.
 about-unloads-last-updated = Ultima actualisaziun: { DATETIME($date, year: "numeric", month: "numeric", day: "numeric", hour: "numeric", minute: "numeric", second: "numeric", hour12: "false") }
 about-unloads-button-unload = Stgargiar
     .title = Stgargiar il tab cun la prioritad la pli auta
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/rm/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/rm/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/rm/browser/browser/appmenu.ftl	2021-10-17 14:48:29.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/rm/browser/browser/appmenu.ftl	2021-10-20 19:37:14.000000000 +0000
@@ -118,6 +118,12 @@
 profiler-popup-button-idle =
     .label = Analisa da la prestaziun
     .tooltiptext = Registrar in profil per l'analisa da la prestaziun
+profiler-popup-button-recording =
+    .label = Profilader
+    .tooltiptext = Il profilader registrescha in profil
+profiler-popup-button-capturing =
+    .label = Profilader
+    .tooltiptext = Il profilader registrescha in profil
 profiler-popup-title =
     .value = { -profiler-brand-name }
 profiler-popup-reveal-description-button =
@@ -168,6 +174,7 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
+profiler-popup-presets-web-developer-description = Preselecziun recumandada per il debugadi da las bleras web-apps cun pitschen overhead.
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/rm/devtools/client/perftools.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/rm/devtools/client/perftools.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/rm/devtools/client/perftools.ftl	2021-10-17 14:48:29.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/rm/devtools/client/perftools.ftl	2021-10-20 19:37:14.000000000 +0000
@@ -42,9 +42,7 @@
 
 # The size of the memory buffer used to store things in the profiler.
 perftools-range-entries-label = Buffer size:
-
 perftools-custom-threads-label = Add custom threads by name:
-
 perftools-devtools-interval-label = Interval:
 perftools-devtools-threads-label = Threads:
 perftools-devtools-settings-label = Settings
@@ -97,14 +95,12 @@
     .title = Image decoding threads
 perftools-thread-dns-resolver =
     .title = DNS resolution happens on this thread
-
 perftools-thread-task-controller =
     .title = TaskController thread pool threads
 
 ##
 
 perftools-record-all-registered-threads = Bypass selections above and record all registered threads
-
 perftools-tools-threads-input-label =
     .title = These thread names are a comma separated list that is used to enable profiling of the threads in the profiler. The name needs to be only a partial match of the thread name to be included. It is whitespace sensitive.
 
@@ -113,9 +109,29 @@
 ## preferences are true.
 
 perftools-onboarding-message = <b>New</b>: { -profiler-brand-name } is now integrated into Developer Tools. <a>Learn more</a> about this powerful new tool.
-
 # `options-context-advanced-settings` is defined in toolbox-options.ftl
 perftools-onboarding-reenable-old-panel = (For a limited time, you can access the original Performance panel via <a>{ options-context-advanced-settings }</a>)
-
 perftools-onboarding-close-button =
     .aria-label = Close the onboarding message
+
+## Profiler presets
+
+
+# Presets and their l10n IDs are defined in the file
+# devtools/client/performance-new/popup/background.jsm.js
+# The same labels and descriptions are also defined in appmenu.ftl.
+
+perftools-presets-web-developer-label = Web Developer
+perftools-presets-web-developer-description = Recommended preset for most web app debugging, with low overhead.
+perftools-presets-firefox-platform-label = Firefox Platform
+perftools-presets-firefox-platform-description = Recommended preset for internal Firefox platform debugging.
+perftools-presets-firefox-front-end-label = Firefox Front-End
+perftools-presets-firefox-front-end-description = Recommended preset for internal Firefox front-end debugging.
+perftools-presets-firefox-graphics-label = Firefox Graphics
+perftools-presets-firefox-graphics-description = Recommended preset for Firefox graphics performance investigation.
+perftools-presets-media-label = Media
+perftools-presets-media-description = Recommended preset for diagnosing audio and video problems.
+perftools-presets-custom-label = Custom
+
+##
+
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/browser/browser/aboutUnloads.ftl	2021-10-17 14:48:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/browser/browser/aboutUnloads.ftl	2021-10-20 19:37:49.000000000 +0000
@@ -19,6 +19,16 @@
     zobrazuje <strong>tučne</strong>, ak je hostiteľom hlavného rámca karty,
     a <em>kurzívou</em>, ak je proces zdieľaný medzi rôznymi kartami.
     Uvoľnenie kariet môžete spustiť ručne kliknutím na tlačidlo <em>Uvoľniť</em>.
+about-unloads-intro =
+    { -brand-short-name } obsahuje funkciu, ktorá automaticky uvoľňuje karty,
+    aby sa zabránilo zlyhaniu aplikácie z dôvodu nedostatočného množstva voľnej
+    systémovej pamäte. Karta, ktorá bude uvoľnená ako ďalšia v poradí, je vybratá
+    na základe viacerých atribútov. Táto stránka ukazuje ako { -brand-short-name }
+    prioritizuje karty a určuje, ktorá karta sa najbližšie uvoľní. Uvoľnenie kariet môžete
+    spustiť aj ručne kliknutím na tlačidlo <em>Uvoľniť</em>.
+# The link points to a Firefox documentation page, only available in English,
+# with title "Tab Unloading"
+about-unloads-learn-more = Ďalšie informácie o funkcii a tejto stránke nájdete v časti <a data-l10n-name="doc-link">Uvoľňovanie kariet</a>.
 about-unloads-last-updated = Naposledy aktualizované: { DATETIME($date, year: "numeric", month: "numeric", day: "numeric", hour: "numeric", minute: "numeric", second: "numeric", hour12: "false") }
 about-unloads-button-unload = Uvoľniť
     .title = Uvoľní kartu s najvyššou prioritou
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/browser/browser/appmenu.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/browser/browser/appmenu.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/browser/browser/appmenu.ftl	2021-10-17 14:48:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/browser/browser/appmenu.ftl	2021-10-20 19:37:49.000000000 +0000
@@ -118,6 +118,12 @@
 profiler-popup-button-idle =
     .label = Nástroj na profilovanie
     .tooltiptext = Záznam výkonu
+profiler-popup-button-recording =
+    .label = Nástroj na profilovanie
+    .tooltiptext = Nástroj na profilovanie vykonáva záznam profilu
+profiler-popup-button-capturing =
+    .label = Nástroj na profilovanie
+    .tooltiptext = Nástroj na profilovanie zaznamenáva profil
 profiler-popup-title =
     .value = { -profiler-brand-name }
 profiler-popup-reveal-description-button =
@@ -166,6 +172,23 @@
 # devtools/client/performance-new/popup/background.jsm.js
 # Please take care that the same values are also defined in devtools' perftools.ftl.
 
+profiler-popup-presets-web-developer-description = Odporúčaná predvoľba pre väčšinu ladení webových aplikácií s nízkymi nárokmi na výkon.
+profiler-popup-presets-web-developer-label =
+    .label = Webový vývojár
+profiler-popup-presets-firefox-platform-description = Odporúčaná predvoľba pre ladenie internej platformy Firefox.
+profiler-popup-presets-firefox-platform-label =
+    .label = Platforma Firefox
+profiler-popup-presets-firefox-front-end-description = Odporúčaná predvoľba pre vnútorné ladenie klientskeho rozhrania Firefoxu.
+profiler-popup-presets-firefox-front-end-label =
+    .label = Klientske rozhranie Firefoxu
+profiler-popup-presets-firefox-graphics-description = Odporúčaná predvoľba na skúmanie výkonu grafiky vo Firefoxe.
+profiler-popup-presets-firefox-graphics-label =
+    .label = Grafika vo Firefoxe
+profiler-popup-presets-media-description = Odporúčaná predvoľba na diagnostiku problémov so zvukom a videom.
+profiler-popup-presets-media-label =
+    .label = Médiá
+profiler-popup-presets-custom-label =
+    .label = Vlastné
 
 ## History panel
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/browser/browser/places.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/browser/browser/places.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/browser/browser/places.ftl	2021-10-17 14:48:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/browser/browser/places.ftl	2021-10-20 19:37:49.000000000 +0000
@@ -113,6 +113,9 @@
            *[other] Odstrániť záložky
         }
     .accesskey = s
+places-show-in-folder =
+    .label = Zobraziť v priečinku
+    .accesskey = b
 # Variables:
 # $count (number) - The number of elements being selected for removal.
 places-delete-bookmark =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/chat/matrix.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/chat/matrix.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/chat/matrix.properties	2021-10-17 14:48:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/chat/matrix.properties	2021-10-20 19:37:49.000000000 +0000
@@ -226,10 +226,10 @@
 message.alias.removedAndAdded=%1$S odstraňuje %2$S a pridáva %3$S ako adresu tejto miestnosti.
 message.spaceNotSupported=Táto miestnosť nie je podporovaná.
 message.encryptionStart=Správy v tejto konverzácii sú teraz obojsmerne šifrované.
-#    %1S is the name of the user who sent the verification request.
-#    %2S is the name of the user that is receiving the verification request.
-message.verification.request=%1S chce overiť identitu kontaktu %2S.
-#    %1S is the name of the user who cancelled the verification request.
-#    %2S is the reason given why the verification was cancelled.
-message.verification.cancel=Kontakt %1S zrušil overenie, dôvod: %2S
+#    %1$S is the name of the user who sent the verification request.
+#    %2$S is the name of the user that is receiving the verification request.
+message.verification.request2=%1$S chce overiť identitu kontaktu %2$S.
+#    %1$S is the name of the user who cancelled the verification request.
+#    %2$S is the reason given why the verification was cancelled.
+message.verification.cancel2=Kontakt %1$S zrušil overenie, dôvod: %2$S
 message.verification.done=Overenie dokončené.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/devtools/client/perftools.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/devtools/client/perftools.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/devtools/client/perftools.ftl	2021-10-17 14:48:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/devtools/client/perftools.ftl	2021-10-20 19:37:49.000000000 +0000
@@ -39,9 +39,7 @@
 
 # The size of the memory buffer used to store things in the profiler.
 perftools-range-entries-label = Veľkosť buffera:
-
 perftools-custom-threads-label = Pridať vlastné vlákna podľa názvu:
-
 perftools-devtools-interval-label = Interval:
 perftools-devtools-threads-label = Vlákna:
 perftools-devtools-settings-label = Nastavenia
@@ -94,14 +92,12 @@
     .title = Vlákna pre dekódovanie obrázkov
 perftools-thread-dns-resolver =
     .title = V tomto vlákne sa deje preklad DNS
-
 perftools-thread-task-controller =
     .title = Vlákna súboru vlákien TaskController
 
 ##
 
 perftools-record-all-registered-threads = Obísť položky zvolené vyššie a zaznamenať všetky registrované vlákna
-
 perftools-tools-threads-input-label =
     .title = Tieto názvy vlákien sú zoznamom oddeleným čiarkami, ktorý sa používa na povolenie profilovania vlákien v nástroji na profilovanie. Názov môže obsahovať iba časť názvu vlákna. Pozor na medzery.
 
@@ -110,9 +106,29 @@
 ## preferences are true.
 
 perftools-onboarding-message = <b>Novinka</b>: { -profiler-brand-name } je teraz integrovaný do Nástrojov pre vývojárov. <a>Pozrite si ďalšie informácie</a> o tomto novom výkonnom nástroji.
-
 # `options-context-advanced-settings` is defined in toolbox-options.ftl
 perftools-onboarding-reenable-old-panel = (Na obmedzený čas máte prístup k pôvodnému panelu Výkon prostredníctvom položky <a>{ options-context-advanced-settings }</a>)
-
 perftools-onboarding-close-button =
     .aria-label = Zavrieť informačnú správu
+
+## Profiler presets
+
+
+# Presets and their l10n IDs are defined in the file
+# devtools/client/performance-new/popup/background.jsm.js
+# The same labels and descriptions are also defined in appmenu.ftl.
+
+perftools-presets-web-developer-label = Webový vývojár
+perftools-presets-web-developer-description = Odporúčaná predvoľba pre väčšinu ladení webových aplikácií s nízkymi nárokmi na výkon.
+perftools-presets-firefox-platform-label = Platforma Firefox
+perftools-presets-firefox-platform-description = Odporúčaná predvoľba pre ladenie internej platformy Firefox.
+perftools-presets-firefox-front-end-label = Klientske rozhranie Firefoxu
+perftools-presets-firefox-front-end-description = Odporúčaná predvoľba pre vnútorné ladenie klientskeho rozhrania Firefoxu.
+perftools-presets-firefox-graphics-label = Grafika vo Firefoxe
+perftools-presets-firefox-graphics-description = Odporúčaná predvoľba na skúmanie výkonu grafiky vo Firefoxe.
+perftools-presets-media-label = Médiá
+perftools-presets-media-description = Odporúčaná predvoľba na diagnostiku problémov so zvukom a videom.
+perftools-presets-custom-label = Vlastné
+
+##
+
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/dom/chrome/dom/dom.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/dom/chrome/dom/dom.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/dom/chrome/dom/dom.properties	2021-10-17 14:48:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/dom/chrome/dom/dom.properties	2021-10-20 19:37:49.000000000 +0000
@@ -421,3 +421,6 @@
 ElementReleaseCaptureWarning=Metóda Element.releaseCapture() je zavrhnutá. Namiesto nej použite Element.releasePointerCapture(). Ďalšie informácie získate na stránke https://developer.mozilla.org/docs/Web/API/Element/releasePointerCapture
 # LOCALIZATION NOTE: Do not translate "Document.releaseCapture()" and "Element.releasePointerCapture()".
 DocumentReleaseCaptureWarning=Metóda Document.releaseCapture() je zavrhnutá. Namiesto nej použite Element.releasePointerCapture(). Ďalšie informácie získate na stránke https://developer.mozilla.org/docs/Web/API/Element/releasePointerCapture
+
+# LOCALIZATION NOTE: Don't translate browser.runtime.lastError, %S is the error message from the unchecked value set on browser.runtime.lastError.
+WebExtensionUncheckedLastError=Hodnota browser.runtime.lastError nebola začiarknutá: %S
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/toolkit/toolkit/global/run-from-dmg.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/toolkit/toolkit/global/run-from-dmg.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sk/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-17 14:48:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sk/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-20 19:37:49.000000000 +0000
@@ -17,3 +17,12 @@
 
 install-failed-title = Inštalácia aplikácie { -brand-short-name } zlyhala.
 install-failed-message = { -brand-short-name } sa nepodarilo nainštalovať, ale bude naďalej fungovať.
+
+## Strings for a dialog that recommends to the user to start an existing
+## installation of the app in the Applications directory if one is detected,
+## rather than the app that was double-clicked in a .dmg.
+
+prompt-to-launch-existing-app-title = Chcete otvoriť existujúcu aplikáciu { -brand-short-name }?
+prompt-to-launch-existing-app-message = { -brand-short-name } už máte nainštalovaný. Použite už nainštalovanú aplikáciu, aby ste predišli strate dát.
+prompt-to-launch-existing-app-yes-button = Otvoriť existujúcu
+prompt-to-launch-existing-app-no-button = Nie, ďakujem
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/browser/browser/aboutUnloads.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/browser/browser/aboutUnloads.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/browser/browser/aboutUnloads.ftl	2021-10-17 14:48:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/browser/browser/aboutUnloads.ftl	2021-10-20 19:37:56.000000000 +0000
@@ -11,6 +11,7 @@
 about-unloads-column-last-accessed = Zadnji dostop
 about-unloads-column-memory = Pomnilnik
     .title = Zavihkova približna poraba pomnilnika
+about-unloads-last-accessed = { DATETIME($date, year: "numeric", month: "numeric", day: "numeric", hour: "numeric", minute: "numeric", second: "numeric", hour12: "false") }
 about-unloads-memory-in-mb = { NUMBER($mem, maxFractionalUnits: 2) } MB
 about-unloads-memory-in-mb-tooltip =
     .title = { NUMBER($mem, maxFractionalUnits: 2) } MB
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/browser/browser/newtab/newtab.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/browser/browser/newtab/newtab.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/browser/browser/newtab/newtab.ftl	2021-10-17 14:48:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/browser/browser/newtab/newtab.ftl	2021-10-20 19:37:56.000000000 +0000
@@ -38,6 +38,7 @@
     .placeholder = Iskanje po spletu
     .title = Iskanje po spletu
     .aria-label = Iskanje po spletu
+newtab-search-box-text = Išči po spletu
 newtab-search-box-input =
     .placeholder = Iskanje po spletu
     .aria-label = Iskanje po spletu
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/browser/browser/newtab/onboarding.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/browser/browser/newtab/onboarding.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/browser/browser/newtab/onboarding.ftl	2021-10-17 14:48:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/browser/browser/newtab/onboarding.ftl	2021-10-20 19:37:56.000000000 +0000
@@ -276,6 +276,16 @@
 # variations e.g. soft, balanced, bold
 mr2-onboarding-theme-description =
     .aria-description = Uporabi to barvno kombinacijo.
+# Tooltip displayed on hover of colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-tooltip =
+    .title = Raziščite barvne kombinacije za { $colorwayName }.
+# Selector description for colorway
+# Variables:
+#   $colorwayName (String) - Name of colorway
+mr2-onboarding-colorway-description =
+    .aria-description = Raziščite barvne kombinacije za { $colorwayName }.
 # Tooltip displayed on hover of default themes
 mr2-onboarding-default-theme-tooltip =
     .title = Raziščite privzete teme.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/browser/browser/upgradeDialog.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/browser/browser/upgradeDialog.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/browser/browser/upgradeDialog.ftl	2021-10-17 14:48:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/browser/browser/upgradeDialog.ftl	2021-10-20 19:37:56.000000000 +0000
@@ -69,6 +69,7 @@
 
 # This title can be explicitly wrapped to control which words are on which line.
 upgrade-dialog-start-title = Barvito življenje
+upgrade-dialog-start-subtitle = Živahne nove barvne kombinacije. Le še kratek čas.
 upgrade-dialog-start-primary-button = Raziščite barvne kombinacije
 upgrade-dialog-start-secondary-button = Ne zdaj
 
@@ -80,6 +81,9 @@
 upgrade-dialog-colorway-secondary-button = Obdrži dosedanjo temo
 upgrade-dialog-colorway-theme-tooltip =
     .title = Raziščite privzete teme
+# $colorwayName (String) - Name of colorway, e.g., Abstract, Cheers
+upgrade-dialog-colorway-colorway-tooltip =
+    .title = Raziščite barvne kombinacije za { $colorwayName }
 upgrade-dialog-colorway-default-theme = Privzeta
 # "Auto" is short for "Automatic"
 upgrade-dialog-colorway-theme-auto = Samodejno
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/browser/chrome/browser/tabbrowser.properties firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/browser/chrome/browser/tabbrowser.properties
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/browser/chrome/browser/tabbrowser.properties	2021-10-17 14:48:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/browser/chrome/browser/tabbrowser.properties	2021-10-20 19:37:56.000000000 +0000
@@ -78,14 +78,18 @@
 # The forms for 0 or 1 items are not considered since this string is used only for
 # multiple windows. The %S replacement form will be replaced with the contents
 tabs.closeWindowsTitle=;Zapri #1 okni?;Zapri #1 okna?;Zapri #1 oken?
+tabs.closeWindowsButton=Zapri
 # Same as tabs.closeWindowsButton, but on Windows
+tabs.closeWindowsButtonWin=Zapri
 
 # LOCALIZATION NOTE (tabs.closeTabsWithKeyTitle and closeTabsWithKeyButton):
 # This section applies when quitting using the keyboard shortcut (Ctrl/Cmd+Q)
 # Windows does not show a prompt on quit when using the keyboard shortcut by
 # default.
 # %S is replaced with brandShorterName
+tabs.closeTabsWithKeyTitle=Zapri okno in zapusti %S?
 # %S is replaced with brandShorterName
+tabs.closeTabsWithKeyButton=Izhod iz %Sa
 
 # LOCALIZATION NOTE (tabs.closeTabsWithKeyConfirmCheckbox):
 # %S is replaced with the text of the keyboard shortcut for quitting.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/toolkit/toolkit/global/run-from-dmg.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/toolkit/toolkit/global/run-from-dmg.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/sl/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-17 14:48:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/sl/toolkit/toolkit/global/run-from-dmg.ftl	2021-10-20 19:37:56.000000000 +0000
@@ -17,3 +17,12 @@
 
 install-failed-title = Namestitev { -brand-short-name(sklon: "rodilnik") } ni uspela.
 install-failed-message = { -brand-short-name } se ni uspešno namestil, vendar bo vseeno deloval.
+
+## Strings for a dialog that recommends to the user to start an existing
+## installation of the app in the Applications directory if one is detected,
+## rather than the app that was double-clicked in a .dmg.
+
+prompt-to-launch-existing-app-title = Želite odpreti obstoječi { -brand-short-name }?
+prompt-to-launch-existing-app-message = { -brand-short-name } je že nameščen. Da ostanete na tekočem s posodobitvami in preprečite izgubo podatkov, priporočamo, da uporabljate nameščeni program.
+prompt-to-launch-existing-app-yes-button = Odpri obstoječi program
+prompt-to-launch-existing-app-no-button = Ne, hvala
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/l10n/uz/browser/browser/aboutLogins.ftl firefox-trunk-95.0~a1~hg20211020r596404/l10n/uz/browser/browser/aboutLogins.ftl
--- firefox-trunk-95.0~a1~hg20211017r596111/l10n/uz/browser/browser/aboutLogins.ftl	2021-10-17 14:49:38.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/l10n/uz/browser/browser/aboutLogins.ftl	2021-10-20 19:39:21.000000000 +0000
@@ -68,6 +68,7 @@
 about-logins-login-intro-heading-logged-out2 = Saqlangan loginlarni izlayapsizmi? Sinxronizatsiyani yoqing yoki ularni import qiling.
 about-logins-login-intro-heading-logged-in = Sinxronlangan loginlar topilmadi
 login-intro-description = Loginlaringizni boshqa qurilmadagi { -brand-product-name } brauzeriga saqlagan boʻlsangiz, ularni olish haqida bu yerdan maʼlumot olish mumkin:
+login-intro-instructions-fxa = Yangi hisob yarating yoki loginlaringiz saqlangan qurilmadagi { -fxaccount-brand-name }  hisobiga kiring
 about-logins-intro-import = Loginlaringiz boshqa brauzerga saqlangan boʻlsa, ularni <a data-l10n-name="import-link">import qilishingiz mumkin { -lockwise-brand-short-name }</a>
 
 ## Login
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/base/AutoProfilerStyleMarker.h firefox-trunk-95.0~a1~hg20211020r596404/layout/base/AutoProfilerStyleMarker.h
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/base/AutoProfilerStyleMarker.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/base/AutoProfilerStyleMarker.h	2021-10-20 19:28:30.000000000 +0000
@@ -18,7 +18,7 @@
  public:
   explicit AutoProfilerStyleMarker(UniquePtr<ProfileChunkedBuffer> aCause,
                                    const Maybe<uint64_t>& aInnerWindowID)
-      : mActive(profiler_can_accept_markers()),
+      : mActive(profiler_thread_is_being_profiled()),
         mStartTime(TimeStamp::Now()),
         mCause(std::move(aCause)),
         mInnerWindowID(aInnerWindowID) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/base/crashtests/1734007.html firefox-trunk-95.0~a1~hg20211020r596404/layout/base/crashtests/1734007.html
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/base/crashtests/1734007.html	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/base/crashtests/1734007.html	2021-10-20 19:28:31.000000000 +0000
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <style>
+      * {
+          clip-path: fill-box circle(3407268870.1142473cm at left 76% top 53%);
+          border: hidden thick hsla(0.8914928662981693rad, 5.18832867065233 e+307%, 81%, 1%);
+          opacity: 1%;
+      }
+  </style>
+</head>
+<table>
+  <caption style="position: fixed !important;" contenteditable="true"></caption>
+</table>
+</html>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/base/crashtests/crashtests.list firefox-trunk-95.0~a1~hg20211020r596404/layout/base/crashtests/crashtests.list
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/base/crashtests/crashtests.list	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/base/crashtests/crashtests.list	2021-10-20 19:28:29.000000000 +0000
@@ -562,3 +562,4 @@
 load 1723200.html
 load 1729578.html
 load 1729581.html
+load 1734007.html
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/base/DisplayPortUtils.cpp firefox-trunk-95.0~a1~hg20211020r596404/layout/base/DisplayPortUtils.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/base/DisplayPortUtils.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/base/DisplayPortUtils.cpp	2021-10-20 19:28:29.000000000 +0000
@@ -26,6 +26,7 @@
 #include "nsPlaceholderFrame.h"
 #include "nsSubDocumentFrame.h"
 #include "RetainedDisplayListBuilder.h"
+#include "WindowRenderer.h"
 
 #include <ostream>
 
@@ -187,48 +188,6 @@
   return mVisualOffset - asyncLayoutViewport.TopLeft();
 }
 
-// Return the maximum displayport size, based on the LayerManager's maximum
-// supported texture size. The result is in app units.
-static nscoord GetMaxDisplayPortSize(nsIContent* aContent,
-                                     nsPresContext* aFallbackPrescontext) {
-  MOZ_ASSERT(!StaticPrefs::layers_enable_tiles_AtStartup(),
-             "Do not clamp displayports if tiling is enabled");
-
-  // Pick a safe maximum displayport size for sanity purposes. This is the
-  // lowest maximum texture size on tileless-platforms (Windows, D3D10).
-  // If the gfx.max-texture-size pref is set, further restrict the displayport
-  // size to fit within that, because the compositor won't upload stuff larger
-  // than this size.
-  nscoord safeMaximum = aFallbackPrescontext
-                            ? aFallbackPrescontext->DevPixelsToAppUnits(
-                                  std::min(8192, gfxPlatform::MaxTextureSize()))
-                            : nscoord_MAX;
-
-  nsIFrame* frame = aContent->GetPrimaryFrame();
-  if (!frame) {
-    return safeMaximum;
-  }
-  frame = nsLayoutUtils::GetDisplayRootFrame(frame);
-
-  nsIWidget* widget = frame->GetNearestWidget();
-  if (!widget) {
-    return safeMaximum;
-  }
-  WindowRenderer* renderer = widget->GetWindowRenderer();
-  if (!renderer || !renderer->AsWebRender()) {
-    return safeMaximum;
-  }
-  nsPresContext* presContext = frame->PresContext();
-
-  int32_t maxSizeInDevPixels = renderer->GetMaxTextureSize();
-  if (maxSizeInDevPixels < 0 || maxSizeInDevPixels == INT_MAX) {
-    return safeMaximum;
-  }
-  maxSizeInDevPixels =
-      std::min(maxSizeInDevPixels, gfxPlatform::MaxTextureSize());
-  return presContext->DevPixelsToAppUnits(maxSizeInDevPixels);
-}
-
 static nsRect ApplyRectMultiplier(nsRect aRect, float aMultiplier) {
   if (aMultiplier == 1.0f) {
     return aRect;
@@ -513,21 +472,6 @@
                                            aOptions);
   }
 
-  if (!StaticPrefs::layers_enable_tiles_AtStartup()) {
-    // Perform the desired error handling if the displayport dimensions
-    // exceeds the maximum allowed size
-    nscoord maxSize = GetMaxDisplayPortSize(aContent, nullptr);
-    if (result.width > maxSize || result.height > maxSize) {
-      switch (aOptions.mMaxSizeExceededBehaviour) {
-        case MaxSizeExceededBehaviour::Assert:
-          NS_ASSERTION(false, "Displayport must be a valid texture size");
-          break;
-        case MaxSizeExceededBehaviour::Drop:
-          return false;
-      }
-    }
-  }
-
   if (aOptions.mRelativeTo == DisplayportRelativeTo::ScrollFrame) {
     TranslateFromScrollPortToScrollFrame(aContent, &result);
   }
@@ -611,15 +555,9 @@
 bool DisplayPortUtils::GetDisplayPortForVisibilityTesting(nsIContent* aContent,
                                                           nsRect* aResult) {
   MOZ_ASSERT(aResult);
-  // Since the base rect might not have been updated very recently, it's
-  // possible to end up with an extra-large displayport at this point, if the
-  // zoom level is changed by a lot. Instead of using the default behaviour of
-  // asserting, we can just ignore the displayport if that happens, as this
-  // call site is best-effort.
-  return GetDisplayPortImpl(aContent, aResult, 1.0f,
-                            DisplayPortOptions()
-                                .With(MaxSizeExceededBehaviour::Drop)
-                                .With(DisplayportRelativeTo::ScrollFrame));
+  return GetDisplayPortImpl(
+      aContent, aResult, 1.0f,
+      DisplayPortOptions().With(DisplayportRelativeTo::ScrollFrame));
 }
 
 void DisplayPortUtils::InvalidateForDisplayPortChange(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/base/DisplayPortUtils.h firefox-trunk-95.0~a1~hg20211020r596404/layout/base/DisplayPortUtils.h
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/base/DisplayPortUtils.h	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/base/DisplayPortUtils.h	2021-10-20 19:28:30.000000000 +0000
@@ -26,23 +26,12 @@
 // For GetDisplayPort
 enum class DisplayportRelativeTo { ScrollPort, ScrollFrame };
 
-enum class MaxSizeExceededBehaviour {
-  // Ask GetDisplayPort to assert if the calculated displayport exceeds
-  // the maximum allowed size.
-  Assert,
-  // Ask GetDisplayPort to pretend like there's no displayport at all, if
-  // the calculated displayport exceeds the maximum allowed size.
-  Drop,
-};
-
 // Is the displayport being applied to scrolled content or fixed content?
 enum class ContentGeometryType { Scrolled, Fixed };
 
 struct DisplayPortOptions {
   // The default options.
   DisplayportRelativeTo mRelativeTo = DisplayportRelativeTo::ScrollPort;
-  MaxSizeExceededBehaviour mMaxSizeExceededBehaviour =
-      MaxSizeExceededBehaviour::Assert;
   ContentGeometryType mGeometryType = ContentGeometryType::Scrolled;
 
   // Fluent interface for changing the defaults.
@@ -51,12 +40,6 @@
     result.mRelativeTo = aRelativeTo;
     return result;
   }
-  DisplayPortOptions With(
-      MaxSizeExceededBehaviour aMaxSizeExceededBehaviour) const {
-    DisplayPortOptions result = *this;
-    result.mMaxSizeExceededBehaviour = aMaxSizeExceededBehaviour;
-    return result;
-  }
   DisplayPortOptions With(ContentGeometryType aGeometryType) const {
     DisplayPortOptions result = *this;
     result.mGeometryType = aGeometryType;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/base/nsPresContext.cpp firefox-trunk-95.0~a1~hg20211020r596404/layout/base/nsPresContext.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/base/nsPresContext.cpp	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/base/nsPresContext.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -285,11 +285,11 @@
       mHadNonBlankPaint(false),
       mHadContentfulPaint(false),
       mHadNonTickContentfulPaint(false),
-      mHadContentfulPaintComposite(false)
+      mHadContentfulPaintComposite(false),
 #ifdef DEBUG
-      ,
-      mInitialized(false)
+      mInitialized(false),
 #endif
+      mColorSchemeOverride(dom::PrefersColorSchemeOverride::None)
 {
 #ifdef DEBUG
   PodZero(&mLayoutPhaseCount);
@@ -935,6 +935,24 @@
   UpdateCharSet(doc->GetDocumentCharacterSet());
 }
 
+Maybe<ColorScheme> nsPresContext::GetOverriddenColorScheme() const {
+  if (IsPrintingOrPrintPreview()) {
+    return Some(ColorScheme::Light);
+  }
+
+  switch (mColorSchemeOverride) {
+    case dom::PrefersColorSchemeOverride::Dark:
+      return Some(ColorScheme::Dark);
+    case dom::PrefersColorSchemeOverride::Light:
+      return Some(ColorScheme::Light);
+    case dom::PrefersColorSchemeOverride::None:
+    case dom::PrefersColorSchemeOverride::EndGuard_:
+      break;
+  }
+
+  return Nothing();
+}
+
 void nsPresContext::RecomputeBrowsingContextDependentData() {
   MOZ_ASSERT(mDocument);
   dom::Document* doc = mDocument;
@@ -952,6 +970,16 @@
   SetFullZoom(browsingContext->FullZoom());
   SetTextZoom(browsingContext->TextZoom());
   SetOverrideDPPX(browsingContext->OverrideDPPX());
+
+  auto oldOverride = mColorSchemeOverride;
+  mColorSchemeOverride = browsingContext->Top()->PrefersColorSchemeOverride();
+  if (oldOverride != mColorSchemeOverride) {
+    // This is a bit of a lie, but it's the code-path that gets taken for
+    // regular system metrics changes via ThemeChanged().
+    MediaFeatureValuesChanged({MediaFeatureChangeReason::SystemMetricsChange},
+                              MediaFeatureChangePropagation::JustThisDocument);
+  }
+
   if (doc == mDocument) {
     // Medium doesn't apply to resource documents, etc.
     auto* top = browsingContext->Top();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/base/nsPresContext.h firefox-trunk-95.0~a1~hg20211020r596404/layout/base/nsPresContext.h
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/base/nsPresContext.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/base/nsPresContext.h	2021-10-20 19:28:31.000000000 +0000
@@ -82,6 +82,7 @@
 class StaticPresData;
 struct MediaFeatureChange;
 enum class MediaFeatureChangePropagation : uint8_t;
+enum class ColorScheme : uint8_t;
 namespace layers {
 class ContainerLayer;
 class LayerManager;
@@ -89,6 +90,7 @@
 namespace dom {
 class Document;
 class Element;
+enum class PrefersColorSchemeOverride : uint8_t;
 }  // namespace dom
 }  // namespace mozilla
 
@@ -573,12 +575,15 @@
 
   float GetOverrideDPPX() const { return mMediaEmulationData.mDPPX; }
 
+  // Gets the forced color-scheme if any via either DevTools emulation or
+  // printing.
+  //
+  // NOTE(emilio): This might be called from an stylo thread.
+  Maybe<mozilla::ColorScheme> GetOverriddenColorScheme() const;
+
   /**
    * Recomputes the data dependent on the browsing context, like zoom and text
    * zoom.
-   *
-   * TODO(emilio): Eventually stuff like the media emulation data, overrideDPPX
-   * and such should also move here.
    */
   void RecomputeBrowsingContextDependentData();
 
@@ -876,15 +881,15 @@
 
   gfxTextPerfMetrics* GetTextPerfMetrics() { return mTextPerf.get(); }
 
-  bool IsDynamic() {
-    return (mType == eContext_PageLayout || mType == eContext_Galley);
+  bool IsDynamic() const {
+    return mType == eContext_PageLayout || mType == eContext_Galley;
   }
-  bool IsScreen() {
-    return (mMedium == nsGkAtoms::screen || mType == eContext_PageLayout ||
-            mType == eContext_PrintPreview);
+  bool IsScreen() const {
+    return mMedium == nsGkAtoms::screen || mType == eContext_PageLayout ||
+           mType == eContext_PrintPreview;
   }
-  bool IsPrintingOrPrintPreview() {
-    return (mType == eContext_Print || mType == eContext_PrintPreview);
+  bool IsPrintingOrPrintPreview() const {
+    return mType == eContext_Print || mType == eContext_PrintPreview;
   }
 
   // Is this presentation in a chrome docshell?
@@ -1373,7 +1378,10 @@
   unsigned mInitialized : 1;
 #endif
 
+  // FIXME(emilio): These would be better packed on top of the bitfields, but
+  // that breaks bindgen in win32.
   FontVisibility mFontVisibility = FontVisibility::Unknown;
+  mozilla::dom::PrefersColorSchemeOverride mColorSchemeOverride;
 
  protected:
   virtual ~nsPresContext();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/base/nsRefreshDriver.cpp firefox-trunk-95.0~a1~hg20211020r596404/layout/base/nsRefreshDriver.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/base/nsRefreshDriver.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/base/nsRefreshDriver.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -1253,7 +1253,7 @@
     return false;
   }
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     auto& data = array.ElementAt(index);
     nsPrintfCString str("%s [%s]", data.mDescription,
                         kFlushTypeNames[aFlushType]);
@@ -1361,7 +1361,7 @@
 
   EnsureTimerStarted();
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsCOMPtr<nsIURI> uri;
     aRequest->GetURI(getter_AddRefs(uri));
     nsAutoCString uristr;
@@ -1386,7 +1386,7 @@
     }
   }
 
-  if (removed && profiler_can_accept_markers()) {
+  if (removed && profiler_thread_is_being_profiled()) {
     nsCOMPtr<nsIURI> uri;
     aRequest->GetURI(getter_AddRefs(uri));
     nsAutoCString uristr;
@@ -1573,7 +1573,7 @@
 
     if (!mHasStartedTimerAtLeastOnce) {
       mHasStartedTimerAtLeastOnce = true;
-      if (profiler_can_accept_markers()) {
+      if (profiler_thread_is_being_profiled()) {
         nsCString text = "initial timer start "_ns;
         if (mPresContext->Document()->GetDocumentURI()) {
           text.Append(
@@ -2233,7 +2233,7 @@
   AUTO_PROFILER_LABEL("nsRefreshDriver::Tick", LAYOUT);
 
   nsAutoCString profilerStr;
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     profilerStr.AppendLiteral("Tick reasons:");
     AppendTickReasonsToString(tickReasons, profilerStr);
   }
@@ -2492,7 +2492,7 @@
   if (mViewManagerFlushIsPending) {
     AutoRecordPhase paintRecord(&phasePaint);
     nsCString transactionId;
-    if (profiler_can_accept_markers()) {
+    if (profiler_thread_is_being_profiled()) {
       transactionId.AppendLiteral("Transaction ID: ");
       transactionId.AppendInt((uint64_t)mNextTransactionId);
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/base/PresShell.cpp firefox-trunk-95.0~a1~hg20211020r596404/layout/base/PresShell.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/base/PresShell.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/base/PresShell.cpp	2021-10-20 19:28:31.000000000 +0000
@@ -6374,8 +6374,8 @@
 
       if (renderer->EndEmptyTransaction(
               (aFlags & PaintInternalFlags::PaintComposite)
-                  ? LayerManager::END_DEFAULT
-                  : LayerManager::END_NO_COMPOSITE)) {
+                  ? WindowRenderer::END_DEFAULT
+                  : WindowRenderer::END_NO_COMPOSITE)) {
         frame->UpdatePaintCountForPaintedPresShells();
         return;
       }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/base/tests/file_bug842853.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/base/tests/file_bug842853.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/base/tests/file_bug842853.sjs	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/base/tests/file_bug842853.sjs	2021-10-20 19:28:30.000000000 +0000
@@ -1,14 +1,18 @@
 var timer;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache, must-revalidate", false);
   response.setHeader("Content-Type", "text/css", false);
   response.write("body { background:lime; color:red; }");
   response.processAsync();
-  timer = Components.classes["@mozilla.org/timer;1"]
-    .createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function() {
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
       response.finish();
-    }, 500, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+    },
+    500,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/docs/css-gap-decorations/Overview.bs firefox-trunk-95.0~a1~hg20211020r596404/layout/docs/css-gap-decorations/Overview.bs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/docs/css-gap-decorations/Overview.bs	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/docs/css-gap-decorations/Overview.bs	2021-10-20 19:28:31.000000000 +0000
@@ -82,7 +82,7 @@
         Animation type: discrete
     </pre>
 
-    These properties specifies an <<image>> to use in place of the rendering specified
+    These properties specify an <<image>> to use in place of the rendering specified
     by the ''column-rule-style''/''row-rule-style'' properties.
 
     As for borders, a rule image is not rendered when the corresponding ''column-rule-style''/''row-rule-style'' is ''column-rule-style/none''.
@@ -101,7 +101,7 @@
         Animation type: discrete
     </pre>
 
-    These properties specifies inward offsets from the top and bottom edges of the image,
+    These properties specify inward offsets from the top and bottom edges of the image,
     dividing it into three regions: two edge areas and one middle area.
 
     When two values are specified, they set the offsets on the top and bottom sides in
@@ -141,7 +141,7 @@
         Animation type: discrete
     </pre>
 
-    These properties specifies how the middle part of a sliced rule image is scaled and tiled.
+    These properties specify how the middle part of a sliced rule image is scaled and tiled.
     Values have the following meanings:
 
     <dl dfn-for=column-rule-image-repeat dfn-type=value>
@@ -530,14 +530,14 @@
     These properties specify the start/end attachment point of the [=rule containing rectangle=]
     in the [=longitudinal axis=].  The start value is specified first, the end value second.
     If only one value is specified it is used for both start and end.
-    These properties are only used for interior the edges.  The '*-rule-edge-align' properties
-    described below specifies the alignment on the outer edges.  The initial value, ''column-rule-align/gap'',
+    These properties are only used for interior edges.  The '*-rule-edge-align' properties
+    described below specify the alignment on the outer edges.  The initial value, ''column-rule-align/gap'',
     means that, by default, a rule will stretch its longitudinal size to fill the space
     from the end of the gap "above" to the start of the gap "below" ("above" meaning the gap
     in the orthogonal axis on the rule's start side).
 
     <aside class=example>
-        This <a href="examples/grid-align-001.html">example</a> illutrates a few alignment options.
+        This <a href="examples/grid-align-001.html">example</a> illustrates a few alignment options.
         Note that the row rules all have a 1px longitudinal inset
         to separate the individual rule segments. (''column-rule-align/rule-center'',
         for example, would otherwise look like one long rule)
@@ -583,7 +583,7 @@
     ''column-rule-align'') since there are no rules in the edge gutters.
 
 
-    Thge figure below illustrates the alignment values.
+    The figure below illustrates the alignment values.
     The red values are used for the top column rule's start edge and the yellow
     values are used for its end edge. The yellow values are also used for the bottom
     column rule's start edge. However, in this
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/docs/css-gap-decorations/Overview.html firefox-trunk-95.0~a1~hg20211020r596404/layout/docs/css-gap-decorations/Overview.html
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/docs/css-gap-decorations/Overview.html	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/docs/css-gap-decorations/Overview.html	2021-10-20 19:28:31.000000000 +0000
@@ -10,7 +10,6 @@
   <link href="../csslogo.ico" rel="shortcut icon" type="image/x-icon">
   <link href="https://www.w3.org/StyleSheets/TR/2016/W3C-ED" rel="stylesheet" type="text/css">
   <meta content="Bikeshed version d7036035b, updated Fri Oct 8 17:07:11 2021 -0700" name="generator">
-  <meta content="8e27fe76645b992566c8fe35bed8d6a37b0ecdb8" name="document-revision">
 <style>/* style-autolinks */
 
 .css.css, .property.property, .descriptor.descriptor {
@@ -491,7 +490,7 @@
     display: grid;
     margin: 0;
     padding: 0;
-    grid-template-columns: 1fr auto auto;
+    grid-template-columns: 1fr max-content auto auto;
     grid-column-gap: .5em;
 }
 .wpt-tests-block hr:last-child {
@@ -505,8 +504,21 @@
     border: none;
 }
 .wpt-test > .wpt-name { grid-column: 1; }
-.wpt-test > .wpt-live { grid-column: 2; }
-.wpt-test > .wpt-source { grid-column: 3; }
+.wpt-test > .wpt-results { grid-column: 2; }
+.wpt-test > .wpt-live { grid-column: 3; }
+.wpt-test > .wpt-source { grid-column: 4; }
+
+.wpt-test > .wpt-results {
+    display: flex;
+    gap: .1em;
+}
+.wpt-test .wpt-result {
+    display: inline-block;
+    height: 1em;
+    width: 1em;
+    border-radius: 50%;
+    position: relative;
+}
 </style>
 <style>/* style-darkmode */
 
@@ -702,7 +714,7 @@
   <div class="head">
    <p data-fill-with="logo"><a class="logo" href="https://www.w3.org/"> <img alt="W3C" height="48" src="https://www.w3.org/StyleSheets/TR/2016/logos/W3C" width="72"> </a> </p>
    <h1 class="p-name no-ref" id="title">CSS Gap Decorations</h1>
-   <h2 class="no-num no-toc no-ref heading settled" id="profile-and-date"><span class="content">Editor’s Draft, <time class="dt-updated" datetime="2021-10-14">14 October 2021</time></span></h2>
+   <h2 class="no-num no-toc no-ref heading settled" id="profile-and-date"><span class="content">Editor’s Draft, <time class="dt-updated" datetime="2021-10-19">19 October 2021</time></span></h2>
    <details>
     <summary>Specification Metadata</summary>
     <div data-fill-with="spec-metadata">
@@ -893,7 +905,7 @@
       <th><a href="https://www.w3.org/TR/web-animations/#animation-type">Animation type:</a>
       <td>discrete 
    </table>
-   <p>These properties specifies an <a class="production css" data-link-type="type" href="https://drafts.csswg.org/css-images-3/#typedef-image" id="ref-for-typedef-image②">&lt;image></a> to use in place of the rendering specified
+   <p>These properties specify an <a class="production css" data-link-type="type" href="https://drafts.csswg.org/css-images-3/#typedef-image" id="ref-for-typedef-image②">&lt;image></a> to use in place of the rendering specified
     by the <span class="css">column-rule-style</span>/<span class="css">row-rule-style</span> properties.</p>
    <p>As for borders, a rule image is not rendered when the corresponding <span class="css">column-rule-style</span>/<span class="css">row-rule-style</span> is <span class="css">none</span>.</p>
    <h3 class="heading settled" data-level="2.2" id="column-rule-image-slice"><span class="secno">2.2. </span><span class="content">The <a class="property" data-link-type="propdesc" href="#propdef-column-rule-image-slice" id="ref-for-propdef-column-rule-image-slice">column-rule-image-slice</a> and <a class="property" data-link-type="propdesc" href="#propdef-row-rule-image-slice" id="ref-for-propdef-row-rule-image-slice">row-rule-image-slice</a> Properties</span><a class="self-link" href="#column-rule-image-slice"></a></h3>
@@ -927,7 +939,7 @@
       <th><a href="https://www.w3.org/TR/web-animations/#animation-type">Animation type:</a>
       <td>discrete 
    </table>
-   <p>These properties specifies inward offsets from the top and bottom edges of the image,
+   <p>These properties specify inward offsets from the top and bottom edges of the image,
     dividing it into three regions: two edge areas and one middle area.</p>
    <p>When two values are specified, they set the offsets on the top and bottom sides in
     that order. If the bottom is missing, it is the same as the top.</p>
@@ -975,7 +987,7 @@
       <th><a href="https://www.w3.org/TR/web-animations/#animation-type">Animation type:</a>
       <td>discrete 
    </table>
-   <p>These properties specifies how the middle part of a sliced rule image is scaled and tiled.
+   <p>These properties specify how the middle part of a sliced rule image is scaled and tiled.
     Values have the following meanings:</p>
    <dl>
     <dt><dfn class="css" data-dfn-for="column-rule-image-repeat" data-dfn-type="value" data-export id="valdef-column-rule-image-repeat-stretch">stretch<a class="self-link" href="#valdef-column-rule-image-repeat-stretch"></a></dfn>
@@ -1028,7 +1040,7 @@
     <a class="self-link" href="#example-c9ee9e2e"></a> This <a href="examples/grid-image-001.html">example</a> demonstrates the new
         rule image properties presented above in a grid layout with spanning elements. 
     <figure>
-      <img height="488" src="media/grid-image-001.png" width="608"> 
+      <img src="media/grid-image-001.png"> 
      <figcaption> Example of image rules. </figcaption>
     </figure>
    </aside>
@@ -1043,7 +1055,7 @@
    <aside class="example" id="example-746571da">
     <a class="self-link" href="#example-746571da"></a> This is a similar <a href="examples/grid-gradient-001.html">example</a> using gradients. 
     <figure>
-      <img height="489" src="media/grid-gradient-001.png" width="608"> 
+      <img src="media/grid-gradient-001.png"> 
      <figcaption> Example of gradient rules. </figcaption>
     </figure>
    </aside>
@@ -1052,7 +1064,7 @@
         support for a use case mentioned in <a href="https://github.com/w3c/csswg-drafts/issues/2748#issuecomment-621983931">issue #2748</a>.
         It’s a coupon with a perforation rendered by a semi-transparent rule image between two flex items. 
     <figure>
-      <img height="108" src="media/flexbox-coupon-rule.png" width="253"> 
+      <img src="media/flexbox-coupon-rule.png"> 
      <figcaption> An example of a semi-transparent column rule image. </figcaption>
     </figure>
    </aside>
@@ -1218,7 +1230,7 @@
         insets are greater than the <a data-link-type="dfn" href="#rule-containing-rectangle①" id="ref-for-rule-containing-rectangle①⑦">rule containing rectangle’s</a> size.  There’s still
         a zero-sized column rule there, which the row rule (purple) aligns to. 
     <figure>
-      <img height="651" src="media/grid-lateral-001.png" width="997"> 
+      <img src="media/grid-lateral-001.png"> 
      <figcaption> Examples of lateral rule sizing with various inset values. </figcaption>
     </figure>
    </aside>
@@ -1325,7 +1337,7 @@
     <a class="self-link" href="#example-0ce2b88c"></a> Here’s a few simple <a href="examples/grid-longitudinal-001.html">examples</a> of
         the rule sizing and inset properties. 
     <figure>
-      <img height="648" src="media/grid-longitudinal-001.png" width="591"> 
+      <img src="media/grid-longitudinal-001.png"> 
      <figcaption> Examples of rule sizing and inset values. </figcaption>
     </figure>
    </aside>
@@ -1634,13 +1646,13 @@
    </table>
    <p>These properties specify the start/end attachment point of the <a data-link-type="dfn" href="#rule-containing-rectangle①" id="ref-for-rule-containing-rectangle①①②">rule containing rectangle</a> in the <a data-link-type="dfn" href="#longitudinal-axis" id="ref-for-longitudinal-axis④">longitudinal axis</a>.  The start value is specified first, the end value second.
     If only one value is specified it is used for both start and end.
-    These properties are only used for interior the edges.  The <a class="property" data-link-type="propdesc">*-rule-edge-align</a> properties
-    described below specifies the alignment on the outer edges.  The initial value, <span class="css">gap</span>,
+    These properties are only used for interior edges.  The <a class="property" data-link-type="propdesc">*-rule-edge-align</a> properties
+    described below specify the alignment on the outer edges.  The initial value, <span class="css">gap</span>,
     means that, by default, a rule will stretch its longitudinal size to fill the space
     from the end of the gap "above" to the start of the gap "below" ("above" meaning the gap
     in the orthogonal axis on the rule’s start side).</p>
-   <aside class="example" id="example-07730548">
-    <a class="self-link" href="#example-07730548"></a> This <a href="examples/grid-align-001.html">example</a> illutrates a few alignment options.
+   <aside class="example" id="example-d52ec54e">
+    <a class="self-link" href="#example-d52ec54e"></a> This <a href="examples/grid-align-001.html">example</a> illustrates a few alignment options.
         Note that the row rules all have a 1px longitudinal inset
         to separate the individual rule segments. (<span class="css">rule-center</span>,
         for example, would otherwise look like one long rule) 
@@ -1648,7 +1660,7 @@
         the gap (to separate the <span class="css">rule-center</span> position
         from the <span class="css">gap-center</span> position)</p>
     <figure>
-      <img height="596" src="media/grid-align-001.png" width="692"> 
+      <img src="media/grid-align-001.png"> 
      <figcaption> Example of <a class="property" data-link-type="propdesc" href="#propdef-row-rule-align" id="ref-for-propdef-row-rule-align①">row-rule-align</a> in a grid container. </figcaption>
     </figure>
     <p>You might be wondering if there’s a bug in the bottom-right example.
@@ -1692,7 +1704,7 @@
     is used for both start and end.  (Attachment points for the interior rule edges are
     specified with the <a href="#column-rule-align"><a class="property" data-link-type="propdesc">*-rule-align</a></a> properties above.)</p>
    <p class="note" role="note"><span>Note:</span> The <span class="css">rule</span>/<span class="css">rule-center</span>/<span class="css">rule-over</span> keywords are omitted here (compared with <span class="css">column-rule-align</span>) since there are no rules in the edge gutters.</p>
-   <p>Thge figure below illustrates the alignment values.
+   <p>The figure below illustrates the alignment values.
     The red values are used for the top column rule’s start edge and the yellow
     values are used for its end edge. The yellow values are also used for the bottom
     column rule’s start edge. However, in this
@@ -1705,7 +1717,7 @@
     attachment points should be used. <span class="css">column-rule-edge-align</span> the yellow colored
     ones (and all other interior edges if there were more rows).</p>
    <figure>
-     <img height="585" src="media/rule-alignment-values.png" width="621"> 
+     <img src="media/rule-alignment-values.png"> 
     <figcaption> Illustration of rule alignment values. </figcaption>
    </figure>
    <p>Here’s the rule styling used for the above example:</p>
@@ -1775,7 +1787,7 @@
    <aside class="example" id="example-9ccc5773">
     <a class="self-link" href="#example-9ccc5773"></a> 
     <figure>
-      <img height="228" src="media/grid-segment-001.png" width="312"> 
+      <img src="media/grid-segment-001.png"> 
      <figcaption> Example of column and row rules with <span class="css">segment</span> extent in a grid container. </figcaption>
     </figure>
    </aside>
@@ -1787,7 +1799,7 @@
    <aside class="example" id="example-9818bbbb">
     <a class="self-link" href="#example-9818bbbb"></a> 
     <figure>
-      <img height="228" src="media/grid-segment-002.png" width="608"> 
+      <img src="media/grid-segment-002.png"> 
      <figcaption> Example of column and row rules with in a grid container with <a data-link-type="dfn" href="https://drafts.csswg.org/css-grid-2/#collapsed-track" id="ref-for-collapsed-track①">collapsed tracks</a>. </figcaption>
     </figure>
    </aside>
@@ -1852,7 +1864,7 @@
         They are both forced to span into the cell in row 2, column 4 to illustrate what happens
         when items span like this. 
     <figure>
-      <img height="811" src="media/grid-extent-001.png" width="805"> 
+      <img src="media/grid-extent-001.png"> 
      <figcaption> Examples of <span class="css">row-rule-extent</span> in a grid container. </figcaption>
     </figure>
    </aside>
@@ -1879,7 +1891,7 @@
         the <a class="css" data-link-type="propdesc" href="#propdef-row-rule-align" id="ref-for-propdef-row-rule-align②">row-rule-align: rule</a> in the subgrid.  The subgrid is in fact completely
         unaware of any parent rules.</p>
     <figure>
-      <img height="256" src="media/grid-subgrid-001.png" width="826"> 
+      <img src="media/grid-subgrid-001.png"> 
      <figcaption> Example of gap rules in a subgrid. </figcaption>
     </figure>
    </aside>
@@ -1896,7 +1908,7 @@
         variations of rules in a masonry grid layout. All the grids have <a class="css" data-link-type="propdesc" href="#propdef-column-rule-edge-align" id="ref-for-propdef-column-rule-edge-align①">column-rule-edge-align: gap-over</a> to extend the edge rules out to
         the content-box edge. 
     <figure>
-      <img height="785" src="media/grid-masonry-001.png" width="691"> 
+      <img src="media/grid-masonry-001.png"> 
      <figcaption> Example of gap rules in a masonry grid. </figcaption>
     </figure>
    </aside>
@@ -1904,12 +1916,12 @@
     <a class="self-link" href="#example-a0ffc13c"></a> This <a href="examples/grid-masonry-002.html">example</a> illustrates
         some of the <a class="css" data-link-type="propdesc" href="#propdef-column-rule-extent" id="ref-for-propdef-column-rule-extent①">column-rule-extent: all-*</a> values. 
     <figure>
-      <img height="772" src="media/grid-masonry-002.png" width="730"> 
+      <img src="media/grid-masonry-002.png"> 
      <figcaption> Example of gap rules in a masonry grid. </figcaption>
     </figure>
    </aside>
    <p class="issue" id="issue-b6f1d65c"><a class="self-link" href="#issue-b6f1d65c"></a> TODO: add definition list and algorithm here...</p>
-   <p class="issue" id="issue-3e9abc31"><a class="self-link" href="#issue-3e9abc31"></a> is it useful to be able to create a rule extent for the <i>intersection</i> or <i>union</i> between two tracks, like so: <img height="435" src="media/masonry-all-shorter.png" style="display:block" width="701">It’s pretty easy to implement, fwiw... (I accidently implemented <span class="css">short</span>/<span class="css">long</span> like that before I realized it was inconsistent with how they work elsewhere). I think it’s a case that is unique to a masonry axis though, at least <i>currently</i>...</p>
+   <p class="issue" id="issue-3e9abc31"><a class="self-link" href="#issue-3e9abc31"></a> is it useful to be able to create a rule extent for the <i>intersection</i> or <i>union</i> between two tracks, like so: <img src="media/masonry-all-shorter.png" style="display:block">It’s pretty easy to implement, fwiw... (I accidently implemented <span class="css">short</span>/<span class="css">long</span> like that before I realized it was inconsistent with how they work elsewhere). I think it’s a case that is unique to a masonry axis though, at least <i>currently</i>...</p>
    <h4 class="heading settled" data-level="6.1.2" id="rule-extent-flexbox"><span class="secno">6.1.2. </span><span class="content">Flexbox Containers</span><a class="self-link" href="#rule-extent-flexbox"></a></h4>
    <p>In a <a href="https://drafts.csswg.org/css-flexbox/#valdef-flex-direction-row">row-oriented flexbox container</a>,
     the <span class="css">row-rule-*</span> properties creates rules between flex lines,
@@ -1981,23 +1993,23 @@
    <aside class="example" id="example-374fda56">
     <a class="self-link" href="#example-374fda56"></a> Here are a few examples to illustrate the <span class="css">row-rule-extent</span> values. 
     <figure>
-      <img height="194" src="media/flexbox-extent-start-001.png" width="314"> 
+      <img src="media/flexbox-extent-start-001.png"> 
      <figcaption> A <a class="css" data-link-type="propdesc" href="#propdef-row-rule-extent" id="ref-for-propdef-row-rule-extent①">row-rule-extent: start</a> <a href="examples/flexbox-extent-start-001.html">example</a>. </figcaption>
     </figure>
     <figure>
-      <img height="194" src="media/flexbox-extent-end-001.png" width="314"> 
+      <img src="media/flexbox-extent-end-001.png"> 
      <figcaption> A <a class="css" data-link-type="propdesc" href="#propdef-row-rule-extent" id="ref-for-propdef-row-rule-extent②">row-rule-extent: end</a> <a href="examples/flexbox-extent-end-001.html">example</a>. </figcaption>
     </figure>
     <figure>
-      <img height="194" src="media/flexbox-extent-long-001.png" width="314"> 
+      <img src="media/flexbox-extent-long-001.png"> 
      <figcaption> A <a class="css" data-link-type="propdesc" href="#propdef-row-rule-extent" id="ref-for-propdef-row-rule-extent③">row-rule-extent: long</a> <a href="examples/flexbox-extent-long-001.html">example</a>. </figcaption>
     </figure>
     <figure>
-      <img height="194" src="media/flexbox-extent-all-short-001.png" width="314"> 
+      <img src="media/flexbox-extent-all-short-001.png"> 
      <figcaption> A <a class="css" data-link-type="propdesc" href="#propdef-row-rule-extent" id="ref-for-propdef-row-rule-extent④">row-rule-extent: all-short</a> <a href="examples/flexbox-extent-all-short-001.html">example</a>. </figcaption>
     </figure>
     <figure>
-      <img height="194" src="media/flexbox-extent-all-long-001.png" width="314"> 
+      <img src="media/flexbox-extent-all-long-001.png"> 
      <figcaption> A <a class="css" data-link-type="propdesc" href="#propdef-row-rule-extent" id="ref-for-propdef-row-rule-extent⑤">row-rule-extent: all-long</a> <a href="examples/flexbox-extent-all-long-001.html">example</a>. </figcaption>
     </figure>
    </aside>
@@ -2007,7 +2019,7 @@
         used and the gaps aren’t aligned.  (The flex items are semi-transparent
         to show the column rules underneath). 
     <figure>
-      <img height="194" src="media/flexbox-extent-all-long-allow-overlap-001.png" width="314"> 
+      <img src="media/flexbox-extent-all-long-allow-overlap-001.png"> 
      <figcaption> A <a class="css" data-link-type="propdesc" href="#propdef-column-rule-extent" id="ref-for-propdef-column-rule-extent③">column-rule-extent: all-long allow-overlap</a> example. </figcaption>
     </figure>
    </aside>
@@ -2022,7 +2034,7 @@
    <aside class="example" id="example-5015561d">
     <a class="self-link" href="#example-5015561d"></a> Note, column 2 is collapsed in this example. 
     <figure>
-      <img height="346" src="media/table-rules-001.png" width="818"> 
+      <img src="media/table-rules-001.png"> 
      <figcaption> An <a href="examples/table-rules-001.html">example</a> of table rules. </figcaption>
     </figure>
    </aside>
@@ -2040,7 +2052,7 @@
         table rows and cells. And also what happens when the table rules from
         the last example is also applied. 
     <figure>
-      <img height="784" src="media/table-row-group-rules-001.png" width="879"> 
+      <img src="media/table-row-group-rules-001.png"> 
      <figcaption> Example of table row and cell rules. </figcaption>
     </figure>
    </aside>
@@ -2058,7 +2070,7 @@
     <a class="self-link" href="#example-b0c3427d"></a> This <a href="examples/multicol-row-rule-001.html">example</a> illustrates rules in
         a multi-column container. 
     <figure>
-      <img height="854" src="media/multicol-row-rule-001.png" width="827"> 
+      <img src="media/multicol-row-rule-001.png"> 
      <figcaption> Example of column and row rules in a multi-column. </figcaption>
     </figure>
    </aside>
@@ -2067,7 +2079,7 @@
         'column-span: <a class="production css" data-link-type="type" href="https://drafts.csswg.org/css-values-4/#integer-value" id="ref-for-integer-value">&lt;integer></a>' some time in the future,
         this is how row rules will work: 
     <figure>
-      <img height="195" src="media/multicol-colspan-2.png" width="808"> 
+      <img src="media/multicol-colspan-2.png"> 
      <figcaption> Example of <a class="css" data-link-type="propdesc" href="https://drafts.csswg.org/css-multicol-2/#propdef-column-span" id="ref-for-propdef-column-span">column-span: 2</a> in a multi-column with column and row rules. </figcaption>
     </figure>
    </aside>
@@ -2089,7 +2101,7 @@
       <c- k>row-rule-lateral-inset-start</c-><c- p>:</c-> <c- m>20</c-><c- k>px</c-><c- p>;</c->
 </pre>
    <figure>
-     <img height="584" src="media/rule-containing-rectangle.png" width="620"> 
+     <img src="media/rule-containing-rectangle.png"> 
     <figcaption> The Rule Containing Rectangle </figcaption>
    </figure>
    <p>Note that the <a data-link-type="dfn" href="#rule-containing-rectangle①" id="ref-for-rule-containing-rectangle①①⑦">rule containing rectangle</a> extends to the start of the black horizontal rule, which has a <span class="css">20px</span> lateral inset (making it non-centered). We align to its start with <a class="css" data-link-type="propdesc" href="#propdef-column-rule-align" id="ref-for-propdef-column-rule-align②">column-rule-align: rule</a>.  From there,
@@ -2787,7 +2799,7 @@
    <dt id="biblio-css-box-4">[CSS-BOX-4]
    <dd>Elika Etemad. <a href="https://www.w3.org/TR/css-box-4/"><cite>CSS Box Model Module Level 4</cite></a>. 21 April 2020. WD. URL: <a href="https://www.w3.org/TR/css-box-4/">https://www.w3.org/TR/css-box-4/</a>
    <dt id="biblio-css-cascade-5">[CSS-CASCADE-5]
-   <dd>Elika Etemad; Miriam Suzanne; Tab Atkins Jr.. <a href="https://www.w3.org/TR/css-cascade-5/"><cite>CSS Cascading and Inheritance Level 5</cite></a>. 29 August 2021. WD. URL: <a href="https://www.w3.org/TR/css-cascade-5/">https://www.w3.org/TR/css-cascade-5/</a>
+   <dd>Elika Etemad; Miriam Suzanne; Tab Atkins Jr.. <a href="https://www.w3.org/TR/css-cascade-5/"><cite>CSS Cascading and Inheritance Level 5</cite></a>. 15 October 2021. WD. URL: <a href="https://www.w3.org/TR/css-cascade-5/">https://www.w3.org/TR/css-cascade-5/</a>
    <dt id="biblio-css-color-4">[CSS-COLOR-4]
    <dd>Tab Atkins Jr.; Chris Lilley. <a href="https://www.w3.org/TR/css-color-4/"><cite>CSS Color Module Level 4</cite></a>. 1 June 2021. WD. URL: <a href="https://www.w3.org/TR/css-color-4/">https://www.w3.org/TR/css-color-4/</a>
    <dt id="biblio-css-display-3">[CSS-DISPLAY-3]
@@ -2811,7 +2823,7 @@
    <dt id="biblio-css-tables-3">[CSS-TABLES-3]
    <dd>François Remy; Greg Whitworth; David Baron. <a href="https://www.w3.org/TR/css-tables-3/"><cite>CSS Table Module Level 3</cite></a>. 27 July 2019. WD. URL: <a href="https://www.w3.org/TR/css-tables-3/">https://www.w3.org/TR/css-tables-3/</a>
    <dt id="biblio-css-values-4">[CSS-VALUES-4]
-   <dd>Tab Atkins Jr.; Elika Etemad. <a href="https://www.w3.org/TR/css-values-4/"><cite>CSS Values and Units Module Level 4</cite></a>. 30 September 2021. WD. URL: <a href="https://www.w3.org/TR/css-values-4/">https://www.w3.org/TR/css-values-4/</a>
+   <dd>Tab Atkins Jr.; Elika Etemad. <a href="https://www.w3.org/TR/css-values-4/"><cite>CSS Values and Units Module Level 4</cite></a>. 16 October 2021. WD. URL: <a href="https://www.w3.org/TR/css-values-4/">https://www.w3.org/TR/css-values-4/</a>
    <dt id="biblio-css-writing-modes-4">[CSS-WRITING-MODES-4]
    <dd>Elika Etemad; Koji Ishii. <a href="https://www.w3.org/TR/css-writing-modes-4/"><cite>CSS Writing Modes Level 4</cite></a>. 30 July 2019. CR. URL: <a href="https://www.w3.org/TR/css-writing-modes-4/">https://www.w3.org/TR/css-writing-modes-4/</a>
    <dt id="biblio-rfc2119">[RFC2119]
@@ -3231,7 +3243,7 @@
     e.g. 'padding | padding-center | padding-over | border...' <a class="issue-return" href="#issue-13842b6f" title="Jump to section">↵</a></div>
    <div class="issue"> perhaps make <a class="css" data-link-type="maybe" href="https://drafts.csswg.org/css-box-4/#valdef-margin-trim-all">all</a> a separate keyword? like so: <span class="css">[segment | [[start | end | short | long] all?] ] allow-overlap?</span> <a class="issue-return" href="#issue-70dc1ba4" title="Jump to section">↵</a></div>
    <div class="issue"> TODO: add definition list and algorithm here... <a class="issue-return" href="#issue-b6f1d65c" title="Jump to section">↵</a></div>
-   <div class="issue"> is it useful to be able to create a rule extent for the <i>intersection</i> or <i>union</i> between two tracks, like so: <img height="435" src="media/masonry-all-shorter.png" style="display:block" width="701">It’s pretty easy to implement, fwiw... (I accidently implemented <span class="css">short</span>/<span class="css">long</span> like that before I realized it was inconsistent with how they work elsewhere). I think it’s a case that is unique to a masonry axis though, at least <i>currently</i>... <a class="issue-return" href="#issue-3e9abc31" title="Jump to section">↵</a></div>
+   <div class="issue"> is it useful to be able to create a rule extent for the <i>intersection</i> or <i>union</i> between two tracks, like so: <img src="media/masonry-all-shorter.png" style="display:block">It’s pretty easy to implement, fwiw... (I accidently implemented <span class="css">short</span>/<span class="css">long</span> like that before I realized it was inconsistent with how they work elsewhere). I think it’s a case that is unique to a masonry axis though, at least <i>currently</i>... <a class="issue-return" href="#issue-3e9abc31" title="Jump to section">↵</a></div>
    <div class="issue"> sort out if non-collapsed column-groups that only contains collapsed columns should generate rules, ditto row-groups/rows <a class="issue-return" href="#issue-96acb267" title="Jump to section">↵</a></div>
    <div class="issue"> this proposal makes the assumption that the parallel proposal that <span class="css">row-gap</span> should apply to multi-column containers is also adopted (issue #XXX). <a class="issue-return" href="#issue-b4c69802" title="Jump to section">↵</a></div>
   </div>
@@ -3611,4 +3623,6 @@
     }
 
 });
+</script>
+<script>/* script-wpt */
 </script>
\ No newline at end of file
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/AnonymousContentKey.h firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/AnonymousContentKey.h
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/AnonymousContentKey.h	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/AnonymousContentKey.h	2021-10-20 19:28:31.000000000 +0000
@@ -32,22 +32,13 @@
 
   // all
   Type_ScrollCorner              = 0x01,
-  Type_Resizer                   = 0x02,
-  Type_Scrollbar                 = 0x03,
-  Type_ScrollbarButton           = 0x04,
-  Type_Slider                    = 0x05,
+  Type_Scrollbar                 = 0x02,
+  Type_ScrollbarButton           = 0x03,
+  Type_Slider                    = 0x04,
 
   // scrollbar, scrollbarbutton, slider
   Flag_Vertical                  = 0x08,
 
-  // resizer
-  // 3-bit bitfield in 0x38 storing dir="" and flip=""
-  Flag_Resizer_Right             = 0x08,
-  Flag_Resizer_Bottom            = 0x10,
-  Flag_Resizer_BottomLeft        = 0x18,
-  Flag_Resizer_BottomRight       = 0x20,
-  Flag_Resizer_Bottom_Flip       = 0x28,
-
   // scrollbarbutton
   Flag_ScrollbarButton_Down      = 0x10,
   Flag_ScrollbarButton_Bottom    = 0x20,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/nsGfxScrollFrame.cpp firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/nsGfxScrollFrame.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/nsGfxScrollFrame.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/nsGfxScrollFrame.cpp	2021-10-20 19:28:30.000000000 +0000
@@ -93,6 +93,7 @@
 #include "mozilla/Unused.h"
 #include "MobileViewportManager.h"
 #include "VisualViewport.h"
+#include "WindowRenderer.h"
 #include <algorithm>
 #include <cstdlib>  // for std::abs(int/long)
 #include <cmath>    // for std::abs(float/double)
@@ -5439,8 +5440,6 @@
   if (neededAnonContent.contains(AnonymousContentType::Resizer)) {
     MOZ_ASSERT(!mIsRoot, "Root scroll frame shouldn't be resizable");
 
-    AnonymousContentKey key = AnonymousContentKey::Type_Resizer;
-
     RefPtr<NodeInfo> nodeInfo;
     nodeInfo = nodeInfoManager->GetNodeInfo(
         nsGkAtoms::resizer, nullptr, kNameSpaceID_XUL, nsINode::ELEMENT_NODE);
@@ -5453,7 +5452,6 @@
       case StyleResize::Horizontal:
         if (IsScrollbarOnRight()) {
           dir.AssignLiteral("right");
-          key |= AnonymousContentKey::Flag_Resizer_Right;
         } else {
           dir.AssignLiteral("left");
         }
@@ -5463,18 +5461,13 @@
         if (!IsScrollbarOnRight()) {
           mResizerContent->SetAttr(kNameSpaceID_None, nsGkAtoms::flip, u""_ns,
                                    false);
-          key |= AnonymousContentKey::Flag_Resizer_Bottom_Flip;
-        } else {
-          key |= AnonymousContentKey::Flag_Resizer_Bottom;
         }
         break;
       case StyleResize::Both:
         if (IsScrollbarOnRight()) {
           dir.AssignLiteral("bottomright");
-          key |= AnonymousContentKey::Flag_Resizer_BottomRight;
         } else {
           dir.AssignLiteral("bottomleft");
-          key |= AnonymousContentKey::Flag_Resizer_BottomLeft;
         }
         break;
       default:
@@ -5485,7 +5478,7 @@
                              u"_parent"_ns, false);
     mResizerContent->SetAttr(kNameSpaceID_None, nsGkAtoms::clickthrough,
                              u"always"_ns, false);
-    aElements.AppendElement(ContentInfo(mResizerContent, key));
+    aElements.AppendElement(mResizerContent);
   }
 
   if (neededAnonContent.contains(AnonymousContentType::HorizontalScrollbar) &&
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/test/file_IconTestServer.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/test/file_IconTestServer.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/test/file_IconTestServer.sjs	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/test/file_IconTestServer.sjs	2021-10-20 19:28:30.000000000 +0000
@@ -1,7 +1,6 @@
 const TIMEOUT_INTERVAL_MS = 100;
 
 function handleRequest(request, response) {
-
   // Allow us to asynchronously construct the response with timeouts
   // rather than forcing us to make the whole thing in one call. See
   // bug 396226.
@@ -10,23 +9,24 @@
   // Figure out whether the client wants to load the image, or just
   // to tell us to finish the previous load
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
-  if (query["continue"] == "true") {
-
+  if (query.continue == "true") {
     // Debugging information so we can figure out the hang
     dump("file_IconTestServer.js DEBUG - Got continue command\n");
 
     // Get the context structure and finish the old request
     getObjectState("context", function(obj) {
-
       // magic or goop, depending on how you look at it
       savedCtx = obj.wrappedJSObject;
 
       // Write the rest of the data
-      savedCtx.ostream.writeFrom(savedCtx.istream, savedCtx.istream.available());
+      savedCtx.ostream.writeFrom(
+        savedCtx.istream,
+        savedCtx.istream.available()
+      );
 
       // Close the streams
       savedCtx.ostream.close();
@@ -47,10 +47,11 @@
   // Context structure - we need to set this up properly to pass to setObjectState
   var ctx = {
     QueryInterface: function(iid) {
-      if (iid.equals(Components.interfaces.nsISupports))
+      if (iid.equals(Components.interfaces.nsISupports)) {
         return this;
-      throw Components.results.NS_ERROR_NO_INTERFACE;
-    }
+      }
+      throw Components.Exception("", Components.results.NS_ERROR_NO_INTERFACE);
+    },
   };
   ctx.wrappedJSObject = ctx;
 
@@ -64,18 +65,19 @@
   ctx.ostream = response.bodyOutputStream;
 
   // Ugly hack, but effective - copied from dom/media/test/contentDuration1.sjs
-  var pngFile = Components.classes["@mozilla.org/file/directory_service;1"].
-                           getService(Components.interfaces.nsIProperties).
-                           get("CurWorkD", Components.interfaces.nsIFile);
+  var pngFile = Components.classes["@mozilla.org/file/directory_service;1"]
+    .getService(Components.interfaces.nsIProperties)
+    .get("CurWorkD", Components.interfaces.nsIFile);
   var paths = "tests/layout/generic/test/file_Dolske.png";
   var split = paths.split("/");
-  for(var i = 0; i < split.length; ++i) {
+  for (var i = 0; i < split.length; ++i) {
     pngFile.append(split[i]);
   }
 
   // Get an input stream for the png data
-  ctx.istream = Cc["@mozilla.org/network/file-input-stream;1"].
-                      createInstance(Components.interfaces.nsIFileInputStream);
+  ctx.istream = Cc["@mozilla.org/network/file-input-stream;1"].createInstance(
+    Components.interfaces.nsIFileInputStream
+  );
   ctx.istream.init(pngFile, -1, 0, 0);
 
   // Write the first 10 bytes, which is just boilerplate/magic bytes
@@ -89,4 +91,3 @@
   // Debugging information so we can figure out the hang
   dump("file_IconTestServer.js DEBUG - Playing the waiting game\n");
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/test/file_SlowImage.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/test/file_SlowImage.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/test/file_SlowImage.sjs	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/test/file_SlowImage.sjs	2021-10-20 19:28:30.000000000 +0000
@@ -2,7 +2,8 @@
 
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAA" +
-  "DUlEQVQImWNgY2P7DwABOgESJhRQtgAAAABJRU5ErkJggg==");
+    "DUlEQVQImWNgY2P7DwABOgESJhRQtgAAAABJRU5ErkJggg=="
+);
 
 function handleRequest(request, response) {
   response.processAsync();
@@ -11,10 +12,14 @@
     if (obj == null) {
       ctx = {
         QueryInterface: function(iid) {
-          if (iid.equals(Components.interfaces.nsISupports))
+          if (iid.equals(Components.interfaces.nsISupports)) {
             return this;
-          throw Components.results.NS_ERROR_NO_INTERFACE;
-        }
+          }
+          throw Components.Exception(
+            "",
+            Components.results.NS_ERROR_NO_INTERFACE
+          );
+        },
       };
       ctx.wrappedJSObject = ctx;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/test/file_SlowPage.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/test/file_SlowPage.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/test/file_SlowPage.sjs	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/test/file_SlowPage.sjs	2021-10-20 19:28:30.000000000 +0000
@@ -8,31 +8,36 @@
   response.processAsync();
 
   response.setHeader("Content-Type", "text/html", false);
-  
+
   // Include paint_listener.js so that we can call waitForAllPaintsFlushed
   // on the window in which this is opened.
-  response.write("<script type=\"text/javascript\" src=\"/tests/SimpleTest/paint_listener.js\"></script>");
-  
+  response.write(
+    '<script type="text/javascript" src="/tests/SimpleTest/paint_listener.js"></script>'
+  );
+
   // Allow the opening window to react to loading being complete.
-  response.write("<body onload=\"window.opener.fullyLoaded()\">");
+  response.write('<body onload="window.opener.fullyLoaded()">');
 
   // Send half of the content.
   for (var i = 0; i < 100; ++i) {
     response.write("<p>Some text.</p>");
   }
-  
+
   // Allow the opening window to react to being partially loaded.
   response.write("<script>window.opener.partiallyLoaded();</script>");
 
   // Wait for 5 seconds, then send the rest of the content.
   timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-  timer.init(() => {
-    
-    for (var i = 0; i < 100; ++i) {
-      response.write("<p>Some text.</p>");
-    }
-    response.write("</body>");
-    
-    response.finish();
-  }, DELAY_MS, Ci.nsITimer.TYPE_ONE_SHOT);
+  timer.init(
+    () => {
+      for (var i = 0; i < 100; ++i) {
+        response.write("<p>Some text.</p>");
+      }
+      response.write("</body>");
+
+      response.finish();
+    },
+    DELAY_MS,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/test/file_SlowTallImage.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/test/file_SlowTallImage.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/test/file_SlowTallImage.sjs	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/test/file_SlowTallImage.sjs	2021-10-20 19:28:31.000000000 +0000
@@ -1,7 +1,7 @@
 "use strict";
 
 /* eslint-disable-next-line mozilla/use-chromeutils-import */
-let {setTimeout} = Cu.import("resource://gre/modules/Timer.jsm", {});
+let { setTimeout } = Cu.import("resource://gre/modules/Timer.jsm", {});
 
 // A tall 1x1000 black png.
 const IMG_BYTES = atob(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/test/slow-stylesheet.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/test/slow-stylesheet.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/generic/test/slow-stylesheet.sjs	2021-10-17 14:42:45.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/generic/test/slow-stylesheet.sjs	2021-10-20 19:28:30.000000000 +0000
@@ -1,16 +1,19 @@
 // Make sure our timer stays alive.
 let gTimer;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/css", false);
   response.setStatusLine("1.1", 200, "OK");
   response.processAsync();
 
   gTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
   // Wait for 1s before responding; this should usually make sure this load comes in last.
-  gTimer.init(() => {
-    response.write("body { color: lime }");
-    response.finish();
-  }, 1000, Ci.nsITimer.TYPE_ONE_SHOT);
+  gTimer.init(
+    () => {
+      response.write("body { color: lime }");
+      response.finish();
+    },
+    1000,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/painting/nsDisplayList.cpp firefox-trunk-95.0~a1~hg20211020r596404/layout/painting/nsDisplayList.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/painting/nsDisplayList.cpp	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/painting/nsDisplayList.cpp	2021-10-20 19:28:31.000000000 +0000
@@ -1577,7 +1577,7 @@
   if (parentType == LayoutFrameType::Scroll ||
       parentType == LayoutFrameType::ListControl) {
     nsIScrollableFrame* sf = do_QueryFrame(parent);
-    if (sf->GetScrolledFrame() == aFrame && sf->IsScrollingActive()) {
+    if (sf->GetScrolledFrame() == aFrame) {
       MOZ_ASSERT(!aFrame->IsTransformed());
       return sf->IsMaybeAsynchronouslyScrolled();
     }
@@ -2235,7 +2235,7 @@
   bool temp = aBuilder->SetIsCompositingCheap(renderer->IsCompositingCheap());
   fallback->EndTransactionWithList(aBuilder, this,
                                    presContext->AppUnitsPerDevPixel(),
-                                   LayerManager::END_DEFAULT);
+                                   WindowRenderer::END_DEFAULT);
 
   if (widgetTransaction ||
       // SVG-as-an-image docs don't paint as part of the retained layer tree,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/bugs/reftest.list firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/bugs/reftest.list
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/bugs/reftest.list	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/bugs/reftest.list	2021-10-20 19:28:31.000000000 +0000
@@ -1143,13 +1143,13 @@
 == 445142-1c.html 445142-1-ref.html
 == 445142-2a.html 445142-2-ref.html
 == 445142-2b.html 445142-2-ref.html
-fails-if(usesRepeatResampling) fails-if(!useDrawSnapshot&&!winWidget) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1a.html about:blank
-fails-if(Android) fails-if(usesRepeatResampling) fails-if(!useDrawSnapshot&&!winWidget) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1b.html about:blank
-fails-if(Android) fails-if(usesRepeatResampling) fails-if(!winWidget) fails-if(useDrawSnapshot) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1c.html about:blank
-fails-if(usesRepeatResampling) fails-if(!winWidget) fails-if(useDrawSnapshot) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1d.html about:blank
-fails-if(usesRepeatResampling) fails-if(!useDrawSnapshot&&!winWidget) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1e.html about:blank
+fuzzy-if(winWidget&&isCoverageBuild,87-87,73-73) fails-if(usesRepeatResampling) fails-if(!useDrawSnapshot&&!winWidget) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1a.html about:blank
+fuzzy-if(winWidget&&isCoverageBuild,178-178,127-127) fails-if(Android) fails-if(usesRepeatResampling) fails-if(!useDrawSnapshot&&!winWidget) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1b.html about:blank
+fuzzy-if(winWidget&&isCoverageBuild,172-172,192-192) fails-if(Android) fails-if(usesRepeatResampling) fails-if(!winWidget) fails-if(useDrawSnapshot) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1c.html about:blank
+fuzzy-if(winWidget&&isCoverageBuild,112-112,212-212) fails-if(usesRepeatResampling) fails-if(!winWidget) fails-if(useDrawSnapshot) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1d.html about:blank
+fuzzy-if(winWidget&&isCoverageBuild,32-32,35-35) fails-if(usesRepeatResampling) fails-if(!useDrawSnapshot&&!winWidget) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1e.html about:blank
 == 446100-1f.html about:blank
-fails-if(usesRepeatResampling) fails-if(Android) fails-if(!useDrawSnapshot&&!winWidget) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1g.html about:blank
+fuzzy-if(winWidget&&isCoverageBuild,141-141,19-19) fails-if(usesRepeatResampling) fails-if(Android) fails-if(!useDrawSnapshot&&!winWidget) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == 446100-1g.html about:blank
 == 446100-1h.html about:blank
 == 447749-1.html 447749-1-ref.html
 fuzzy(0-127,0-2) == 448193.html 448193-ref.html
@@ -2022,13 +2022,13 @@
 fuzzy(0-129,0-48) == 1406179.html 1406179-ref.html
 == 1406183-1.html 1406183-1-ref.html
 == 1410028.html 1410028-ref.html
-fuzzy-if((!gtkWidget&&!geckoview&&!swgl)||useDrawSnapshot,1-2,17300-17500) == 1412375.html 1412375-ref.html
+fuzzy-if((!gtkWidget&&!geckoview&&!swgl&&!(isCoverageBuild&&winWidget))||useDrawSnapshot,1-2,17300-17500) == 1412375.html 1412375-ref.html
 test-pref(font.size.systemFontScale,200) == 1412743.html 1412743-ref.html
 fuzzy(0-255,0-4054) == 1415987-1.html 1415987-1-ref.html # this is a large fuzz, without the fix the test fails in the range 246-255,3237-25110, which overlaps the fuzz range, but would still catch regressing this bug some of the time which is better than not having a test.
 == 1419820-1.html 1419820-1-ref.html
 == 1420946-1.html 1420946-1-ref.html
 == 1422393.html 1422393-ref.html
-== 1424177.html 1424177-ref.html
+fuzzy-if(winWidget&&isCoverageBuild,1-1,4-4) == 1424177.html 1424177-ref.html
 == 1424680.html 1424680-ref.html
 == 1424798-1.html 1424798-ref.html
 == 1425243-1.html 1425243-1-ref.html
@@ -2067,8 +2067,8 @@
 == 1546856-2.html 1546856-ref.html
 == 1547759-1.html 1547759-1-ref.html
 == 1548809.html 1548809-ref.html
-test-pref(ui.systemUsesDarkTheme,1) != 1551040.txt 1551040.txt
-test-pref(ui.systemUsesDarkTheme,1) == 1551040.html 1551040.html
+test-pref(layout.css.prefers-color-scheme.content-override,0) != 1551040.txt 1551040.txt
+test-pref(layout.css.prefers-color-scheme.content-override,0) == 1551040.html 1551040.html
 != 1552789-1.html 1552789-ref-1.html
 pref(image.downscale-during-decode.enabled,true) skip-if(((gtkWidget&&isDebugBuild)||(gtkWidget&&AddressSanitizer)||Android||ThreadSanitizer)||(Android&&isDebugBuild)) random-if(useDrawSnapshot) == 1553571-1.html 1553571-1-ref.html
 == 1558937-1.html 1558937-1-ref.html
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/css-mediaqueries/reftest.list firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/css-mediaqueries/reftest.list
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/css-mediaqueries/reftest.list	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/css-mediaqueries/reftest.list	2021-10-20 19:28:31.000000000 +0000
@@ -27,8 +27,8 @@
 test-pref(ui.prefersReducedMotion,1) == mq_prefers_reduced_motion_reduce.html greenbox.html
 test-pref(privacy.resistFingerprinting,true) test-pref(ui.prefersReducedMotion,1) == mq_prefers_reduced_motion_reduce.html about:blank
 test-pref(privacy.resistFingerprinting,true) == mq_prefers_reduced_motion_both.html greenbox.html
-test-pref(ui.systemUsesDarkTheme,1) == mq_prefers_color_scheme.html greenbox.html
+test-pref(layout.css.prefers-color-scheme.content-override,0) == mq_prefers_color_scheme.html greenbox.html
 test-pref(privacy.resistFingerprinting,true) == mq_prefers_color_scheme_light.html greenbox.html
 == mq_prefers_color_scheme_print.html greenbox-print.html
-test-pref(ui.systemUsesDarkTheme,0) == mq_prefers_color_scheme_light.html greenbox.html
-test-pref(ui.systemUsesDarkTheme,1) == mq_prefers_color_scheme_dark.html greenbox.html
+test-pref(layout.css.prefers-color-scheme.content-override,1) == mq_prefers_color_scheme_light.html greenbox.html
+test-pref(layout.css.prefers-color-scheme.content-override,0) == mq_prefers_color_scheme_dark.html greenbox.html
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/font-matching/reftest.list firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/font-matching/reftest.list
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/font-matching/reftest.list	2021-10-17 14:42:46.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/font-matching/reftest.list	2021-10-20 19:28:31.000000000 +0000
@@ -161,9 +161,9 @@
 random-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == descriptor-ranges.html descriptor-ranges-ref.html # Bug 1392106
 
 # Test that prefs font fallback respects the CSS generic from content (bug 1687426)
-skip-if(Android) == fallback-respects-generic-1.html fallback-respects-generic-1-ref.html # fonts present on Android are too unpredictable for easy testing
+skip-if(Android) fuzzy-if(winWidget&&isCoverageBuild,255-255,2373-2373) == fallback-respects-generic-1.html fallback-respects-generic-1-ref.html # fonts present on Android are too unpredictable for easy testing
 
-skip-if(Android) != system-ui-fallback.html system-ui-fallback-notref.html # Roboto supports the characters in the reftest, and that's better behavior.
+skip-if(Android) fails-if(winWidget&&isCoverageBuild) != system-ui-fallback.html system-ui-fallback-notref.html # Roboto supports the characters in the reftest, and that's better behavior.
 
 # Japanese monospace font on macOS is Osaka-mono
 # If Osaka is present then Osaka-mono should also be available.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/image-element/reftest.list firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/image-element/reftest.list
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/image-element/reftest.list	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/image-element/reftest.list	2021-10-20 19:28:32.000000000 +0000
@@ -5,7 +5,7 @@
 == mozsetimageelement-02.html about:blank
 == image-outside-document-invalidate.html about:blank
 == canvas-outside-document-invalidate-01.html about:blank
-fails-if(azureSkia&&!winWidget) fails-if(cocoaWidget) fails-if(remoteCanvas&&swgl&&winWidget) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == canvas-outside-document-invalidate-02.html about:blank # See bug 666800
+fails-if(azureSkia&&!winWidget) fails-if(cocoaWidget) fails-if(remoteCanvas&&swgl&&winWidget) fails-if(winWidget&&isCoverageBuild) fails-if(/^Windows\x20NT\x206\.1/.test(http.oscpu)) == canvas-outside-document-invalidate-02.html about:blank # See bug 666800
 #fails with Skia due to Skia bug http://code.google.com/p/skia/issues/detail?id=568
 fuzzy-if(winWidget,47-129,47-54) == element-paint-simple.html element-paint-simple-ref.html
 == element-paint-repeated.html element-paint-repeated-ref.html
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/svg/filters/reftest.list firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/svg/filters/reftest.list
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/svg/filters/reftest.list	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/svg/filters/reftest.list	2021-10-20 19:28:33.000000000 +0000
@@ -111,7 +111,7 @@
 
 == feFlood-color-01.svg pass.svg
 
-fuzzy-if(!useDrawSnapshot,20-21,5540-5646) == feGaussianBlur-alpha-01.svg feGaussianBlur-alpha-01-ref.svg
+fuzzy-if(!useDrawSnapshot||(winWidget&&isCoverageBuild),20-21,5540-5647) == feGaussianBlur-alpha-01.svg feGaussianBlur-alpha-01-ref.svg
 
 == feMorphology-radius-negative-01.svg pass.svg
 == feMorphology-radius-negative-02.svg pass.svg
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/svg/filters/svg-filter-chains/reftest.list firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/svg/filters/svg-filter-chains/reftest.list
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/svg/filters/svg-filter-chains/reftest.list	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/svg/filters/svg-filter-chains/reftest.list	2021-10-20 19:28:31.000000000 +0000
@@ -11,6 +11,6 @@
 == intersecting-filter-regions.svg intersecting-filter-regions-ref.svg
 fuzzy-if(!useDrawSnapshot,9-9,5168-5536) fuzzy-if(!useDrawSnapshot&&swgl,7-7,13184-13184) == long-chain.svg simple-chain-ref.svg
 fuzzy-if(!useDrawSnapshot,9-9,5168-5536) fuzzy-if(!useDrawSnapshot&&swgl,7-7,13184-13184) == multiple-primitives-per-filter.svg simple-chain-ref.svg
-fuzzy-if(/^Windows\x20NT\x2010\.0/.test(http.oscpu),0-1,0-173) fuzzy-if(!useDrawSnapshot,9-9,5128-5494) fuzzy-if(!useDrawSnapshot&&swgl,7-7,12836-12836) == second-filter-uses-SourceAlpha.svg second-filter-uses-SourceAlpha-ref.svg
+fuzzy-if(/^Windows\x20NT\x2010\.0/.test(http.oscpu),0-1,0-173) fuzzy-if(!useDrawSnapshot||(winWidget&&isCoverageBuild),9-9,5128-5496) fuzzy-if(!useDrawSnapshot&&swgl,7-7,12836-12836) == second-filter-uses-SourceAlpha.svg second-filter-uses-SourceAlpha-ref.svg
 fuzzy-if(!useDrawSnapshot,9-9,5168-5536) fuzzy-if(!useDrawSnapshot&&swgl,7-7,13184-13184) == second-filter-uses-SourceGraphic.svg simple-chain-ref.svg
 == simple-chain.svg simple-chain-ref.svg
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/svg/reftest.list firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/svg/reftest.list
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/reftests/svg/reftest.list	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/reftests/svg/reftest.list	2021-10-20 19:28:32.000000000 +0000
@@ -407,7 +407,7 @@
 
 == radialGradient-basic-01.svg pass.svg
 == radialGradient-basic-02.svg pass.svg
-fuzzy(0-1,0-3) fuzzy-if(winWidget,0-32,0-223) fuzzy-if(winWidget&&!swgl&&!/^Windows\x20NT\x206\.1/.test(http.oscpu),96-96,21684-21684) fuzzy-if(/^Windows\x20NT\x2010\.0/.test(http.oscpu)&&/^aarch64-msvc/.test(xulRuntime.XPCOMABI)&&!isDebugBuild,0-1,0-2) == radialGradient-basic-03.svg radialGradient-basic-03-ref.html # Bug 1718175
+fuzzy(0-1,0-3) fuzzy-if(winWidget,0-32,0-223) fuzzy-if(winWidget&&!swgl&&!/^Windows\x20NT\x206\.1/.test(http.oscpu),96-96,21684-21684) fuzzy-if(winWidget&&isCoverageBuild,1-1,2-2) == radialGradient-basic-03.svg radialGradient-basic-03-ref.html # Bug 1718175
 == radialGradient-basic-04.svg pass.svg
 == radialGradient-fr-01.svg pass.svg
 fuzzy(0-1,0-3235) fuzzy-if(winWidget,0-1,0-7030) == radialGradient-fr-02.svg radialGradient-fr-02-ref.svg
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/GeckoBindings.cpp firefox-trunk-95.0~a1~hg20211020r596404/layout/style/GeckoBindings.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/GeckoBindings.cpp	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/GeckoBindings.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -703,6 +703,12 @@
   return LookAndFeel::GetInt(intId);
 }
 
+float Gecko_GetLookAndFeelFloat(int32_t aId) {
+  auto id = static_cast<LookAndFeel::FloatID>(aId);
+  AutoWriteLock guard(*sServoFFILock);
+  return LookAndFeel::GetFloat(id);
+}
+
 bool Gecko_MatchLang(const Element* aElement, nsAtom* aOverrideLang,
                      bool aHasOverrideLang, const char16_t* aValue) {
   MOZ_ASSERT(!(aOverrideLang && !aHasOverrideLang),
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/GeckoBindings.h firefox-trunk-95.0~a1~hg20211020r596404/layout/style/GeckoBindings.h
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/GeckoBindings.h	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/GeckoBindings.h	2021-10-20 19:28:32.000000000 +0000
@@ -509,6 +509,7 @@
                                         const mozilla::StyleColorScheme*);
 
 int32_t Gecko_GetLookAndFeelInt(int32_t int_id);
+float Gecko_GetLookAndFeelFloat(int32_t float_id);
 
 void Gecko_AddPropertyToSet(nsCSSPropertyIDSet*, nsCSSPropertyID);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/nsStyleStruct.cpp firefox-trunk-95.0~a1~hg20211020r596404/layout/style/nsStyleStruct.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/nsStyleStruct.cpp	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/nsStyleStruct.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -3113,28 +3113,38 @@
 }
 
 nsChangeHint nsStyleUI::CalcDifference(const nsStyleUI& aNewData) const {
+  // SVGGeometryFrame's mRect depends on stroke _and_ on the value of
+  // pointer-events. See SVGGeometryFrame::ReflowSVG's use of GetHitTestFlags.
+  // (Only a reflow, no visual change.)
+  //
+  // pointer-events changes can change event regions overrides on layers and
+  // so needs a repaint.
+  const auto kPointerEventsHint =
+      nsChangeHint_NeedReflow |
+      nsChangeHint_NeedDirtyReflow |  // XXX remove me: bug 876085
+      nsChangeHint_SchedulePaint;
+
   nsChangeHint hint = nsChangeHint(0);
   if (mCursor != aNewData.mCursor) {
     hint |= nsChangeHint_UpdateCursor;
   }
 
   if (mPointerEvents != aNewData.mPointerEvents) {
-    // SVGGeometryFrame's mRect depends on stroke _and_ on the value
-    // of pointer-events. See SVGGeometryFrame::ReflowSVG's use of
-    // GetHitTestFlags. (Only a reflow, no visual change.)
-    hint |= nsChangeHint_NeedReflow |
-            nsChangeHint_NeedDirtyReflow |  // XXX remove me: bug 876085
-            nsChangeHint_SchedulePaint;     // pointer-events changes can change
-                                            // event regions overrides on layers
-                                            // and so needs a repaint.
+    hint |= kPointerEventsHint;
   }
 
   if (mUserModify != aNewData.mUserModify) {
     hint |= NS_STYLE_HINT_VISUAL;
   }
 
-  if (mUserFocus != aNewData.mUserFocus || mInert != aNewData.mInert ||
-      mUserInput != aNewData.mUserInput) {
+  if (mInert != aNewData.mInert) {
+    // inert affects pointer-events, user-modify, user-select, user-focus and
+    // -moz-user-input, do the union of all them (minus
+    // nsChangeHint_NeutralChange which isn't needed if there's any other hint).
+    hint |= NS_STYLE_HINT_VISUAL | kPointerEventsHint;
+  }
+
+  if (mUserFocus != aNewData.mUserFocus || mUserInput != aNewData.mUserInput) {
     hint |= nsChangeHint_NeutralChange;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/res/scrollbars.css firefox-trunk-95.0~a1~hg20211020r596404/layout/style/res/scrollbars.css
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/res/scrollbars.css	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/res/scrollbars.css	2021-10-20 19:28:33.000000000 +0000
@@ -31,6 +31,9 @@
     pointer-events: none;
     opacity: 0;
   }
+  scrollcorner {
+    pointer-events: none;
+  }
 }
 
 slider {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/ServoBindings.toml firefox-trunk-95.0~a1~hg20211020r596404/layout/style/ServoBindings.toml
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/ServoBindings.toml	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/ServoBindings.toml	2021-10-20 19:28:33.000000000 +0000
@@ -72,6 +72,7 @@
     "mozilla::dom::Document_DocumentTheme",
     "mozilla::dom::Document_Type",
     "mozilla::LookAndFeel_IntID",
+    "mozilla::LookAndFeel_FloatID",
     "nsCSSUnit",
     "nsCSSFontDesc",
     "nsCSSPropertyID",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/bug517224.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/bug517224.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/bug517224.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/bug517224.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   switch (request.queryString) {
     case "reset":
@@ -10,14 +9,18 @@
       setState("imageloaded", "imageloaded");
       response.setStatusLine("1.1", 302, "Found");
       // redirect to a solid blue image
-      response.setHeader("Location", "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVQI12NgYPgPAAEDAQDZqt2zAAAAAElFTkSuQmCC");
+      response.setHeader(
+        "Location",
+        "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVQI12NgYPgPAAEDAQDZqt2zAAAAAElFTkSuQmCC"
+      );
       response.setHeader("Content-Type", "text/plain", false);
       break;
     case "result":
       response.setHeader("Content-Type", "application/ecmascript", false);
       var state = getState("imageloaded");
-      response.write("is('" + state +
-                     "', '', 'image should not have been loaded')\n");
+      response.write(
+        "is('" + state + "', '', 'image should not have been loaded')\n"
+      );
       response.write("SimpleTest.finish()");
       break;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/bug732209-css.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/bug732209-css.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/bug732209-css.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/bug732209-css.sjs	2021-10-20 19:28:32.000000000 +0000
@@ -1,19 +1,30 @@
-function handleRequest(request, response)
-{
-   // First item will be the ID; other items are optional
-   var query = request.queryString.split(/&/);
+function handleRequest(request, response) {
+  // First item will be the ID; other items are optional
+  var query = request.queryString.split(/&/);
 
-   response.setHeader("Content-Type", "text/css", false);
+  response.setHeader("Content-Type", "text/css", false);
 
-   if (query.indexOf("cors-anonymous") != -1) {
-     response.setHeader("Access-Control-Allow-Origin", "*", false);
-   } else if (query.indexOf("cors-credentials") != -1 &&
-              request.hasHeader("Origin")) {
-     response.setHeader("Access-Control-Allow-Origin",
-                        request.getHeader("Origin"), false)
-     response.setHeader("Access-Control-Allow-Credentials", "true", false);
-   }
+  if (query.indexOf("cors-anonymous") != -1) {
+    response.setHeader("Access-Control-Allow-Origin", "*", false);
+  } else if (
+    query.indexOf("cors-credentials") != -1 &&
+    request.hasHeader("Origin")
+  ) {
+    response.setHeader(
+      "Access-Control-Allow-Origin",
+      request.getHeader("Origin"),
+      false
+    );
+    response.setHeader("Access-Control-Allow-Credentials", "true", false);
+  }
 
-   response.write("#" + query[0] + " { color: green !important }" + "\n" +
-                  "#" + query[0] + ".reverse { color: red !important }");
+  response.write(
+    "#" +
+      query[0] +
+      " { color: green !important }" +
+      "\n" +
+      "#" +
+      query[0] +
+      ".reverse { color: red !important }"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/ccd.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/ccd.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/ccd.sjs	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/ccd.sjs	2021-10-20 19:28:32.000000000 +0000
@@ -1,73 +1,71 @@
 const DEBUG_all_valid = false;
 const DEBUG_all_stub = false;
 
-function handleRequest(request, response)
-{
-    // Decode the query string to know what test we're doing.
-
-    // character 1: 'I' = text/css response, 'J' = text/html response
-    let responseCSS = (request.queryString[0] == 'I');
-
-    // character 2: redirection type - we only care about whether we're
-    // ultimately same-origin with the requesting document ('A', 'D') or
-    // not ('B', 'C').
-    let sameOrigin = (request.queryString[1] == 'A' ||
-		      request.queryString[1] == 'D');
-
-    // character 3: '1' = syntactically valid, '2' = invalid, '3' = http error
-    let malformed = (request.queryString[2] == '2');
-    let httpError = (request.queryString[2] == '3');
-
-    // character 4: loaded with <link> or @import (no action required)
-
-    // character 5: loading document mode: 'q' = quirks, 's' = standards
-    let quirksMode = (request.queryString[4] == 'q');
-
-    // Our response contains a CSS rule that selects an element whose
-    // ID is the first four characters of the query string.
-    let selector = '#' + request.queryString.substring(0,4);
-
-    // "Malformed" responses wrap the CSS rule in the construct
-    //     <html>{} ... </html>
-    // This mimics what the CSS parser might see if an actual HTML
-    // document were fed to it.  Because CSS parsers recover from
-    // errors by skipping tokens until they find something
-    // recognizable, a style rule appearing where I wrote '...' above
-    // will be honored!
-    let leader = (malformed ? '<html>{}' : '');
-    let trailer = (malformed ? '</html>' : '');
-
-    // Standards mode documents will ignore the style sheet if it is being
-    // served as text/html (regardless of its contents).  Quirks mode
-    // documents will ignore the style sheet if it is being served as
-    // text/html _and_ it is not same-origin.  Regardless, style sheets
-    // are ignored if they come as the body of an HTTP error response.
-    //
-    // Style sheets that should be ignored paint the element red; those
-    // that should be honored paint it lime.
-    let color = ((responseCSS || (quirksMode && sameOrigin)) && !httpError
-		 ? 'lime' : 'red');
-
-    // For debugging the test itself, we have the capacity to make every style
-    // sheet well-formed, or every style sheet do nothing.
-    if (DEBUG_all_valid) {
-	// In this mode, every test chip should turn blue.
-	response.setHeader('Content-Type', 'text/css');
-	response.write(selector + '{background-color:blue}\n');
-    } else if (DEBUG_all_stub) {
-	// In this mode, every test chip for a case where the true test
-	// sheet would be honored, should turn red.
-	response.setHeader('Content-Type', 'text/css');
-	response.write(selector + '{}\n');
-    } else {
-	// Normal operation.
-	if (httpError)
-	    response.setStatusLine(request.httpVersion, 500,
-				   "Internal Server Error");
-	response.setHeader('Content-Type',
-			   responseCSS ? 'text/css' : 'text/html');
-	response.write(leader + selector +
-		       '{background-color:' + color + '}' +
-		       trailer + '\n');
+function handleRequest(request, response) {
+  // Decode the query string to know what test we're doing.
+
+  // character 1: 'I' = text/css response, 'J' = text/html response
+  let responseCSS = request.queryString[0] == "I";
+
+  // character 2: redirection type - we only care about whether we're
+  // ultimately same-origin with the requesting document ('A', 'D') or
+  // not ('B', 'C').
+  let sameOrigin =
+    request.queryString[1] == "A" || request.queryString[1] == "D";
+
+  // character 3: '1' = syntactically valid, '2' = invalid, '3' = http error
+  let malformed = request.queryString[2] == "2";
+  let httpError = request.queryString[2] == "3";
+
+  // character 4: loaded with <link> or @import (no action required)
+
+  // character 5: loading document mode: 'q' = quirks, 's' = standards
+  let quirksMode = request.queryString[4] == "q";
+
+  // Our response contains a CSS rule that selects an element whose
+  // ID is the first four characters of the query string.
+  let selector = "#" + request.queryString.substring(0, 4);
+
+  // "Malformed" responses wrap the CSS rule in the construct
+  //     <html>{} ... </html>
+  // This mimics what the CSS parser might see if an actual HTML
+  // document were fed to it.  Because CSS parsers recover from
+  // errors by skipping tokens until they find something
+  // recognizable, a style rule appearing where I wrote '...' above
+  // will be honored!
+  let leader = malformed ? "<html>{}" : "";
+  let trailer = malformed ? "</html>" : "";
+
+  // Standards mode documents will ignore the style sheet if it is being
+  // served as text/html (regardless of its contents).  Quirks mode
+  // documents will ignore the style sheet if it is being served as
+  // text/html _and_ it is not same-origin.  Regardless, style sheets
+  // are ignored if they come as the body of an HTTP error response.
+  //
+  // Style sheets that should be ignored paint the element red; those
+  // that should be honored paint it lime.
+  let color =
+    (responseCSS || (quirksMode && sameOrigin)) && !httpError ? "lime" : "red";
+
+  // For debugging the test itself, we have the capacity to make every style
+  // sheet well-formed, or every style sheet do nothing.
+  if (DEBUG_all_valid) {
+    // In this mode, every test chip should turn blue.
+    response.setHeader("Content-Type", "text/css");
+    response.write(selector + "{background-color:blue}\n");
+  } else if (DEBUG_all_stub) {
+    // In this mode, every test chip for a case where the true test
+    // sheet would be honored, should turn red.
+    response.setHeader("Content-Type", "text/css");
+    response.write(selector + "{}\n");
+  } else {
+    // Normal operation.
+    if (httpError) {
+      response.setStatusLine(request.httpVersion, 500, "Internal Server Error");
     }
+    response.setHeader("Content-Type", responseCSS ? "text/css" : "text/html");
+    response.write(
+      leader + selector + "{background-color:" + color + "}" + trailer + "\n"
+    );
+  }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/chrome/bug418986-2.js firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/chrome/bug418986-2.js
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/chrome/bug418986-2.js	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/chrome/bug418986-2.js	2021-10-20 19:28:33.000000000 +0000
@@ -62,7 +62,6 @@
   "-moz-windows-glass",
   "-moz-gtk-csd-available",
   "-moz-gtk-csd-hide-titlebar-by-default",
-  "-moz-gtk-csd-transparent-background",
   "-moz-gtk-csd-minimize-button",
   "-moz-gtk-csd-maximize-button",
   "-moz-gtk-csd-close-button",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/chrome/chrome-only-media-queries.js firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/chrome/chrome-only-media-queries.js
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/chrome/chrome-only-media-queries.js	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/chrome/chrome-only-media-queries.js	2021-10-20 19:28:32.000000000 +0000
@@ -22,7 +22,6 @@
   "-moz-swipe-animation-enabled",
   "-moz-gtk-csd-available",
   "-moz-gtk-csd-hide-titlebar-by-default",
-  "-moz-gtk-csd-transparent-background",
   "-moz-gtk-csd-minimize-button",
   "-moz-gtk-csd-maximize-button",
   "-moz-gtk-csd-close-button",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/mochitest.ini firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/mochitest.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/mochitest.ini	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/mochitest.ini	2021-10-20 19:28:32.000000000 +0000
@@ -297,6 +297,7 @@
 [test_moz_device_pixel_ratio.html]
 [test_moz_prefixed_cursor.html]
 [test_namespace_rule.html]
+[test_non_content_accessible_env_vars.html]
 [test_non_content_accessible_properties.html]
 [test_non_content_accessible_pseudos.html]
 [test_non_content_accessible_values.html]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/neverending_font_load.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/neverending_font_load.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/neverending_font_load.sjs	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/neverending_font_load.sjs	2021-10-20 19:28:32.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
   response.setHeader("Content-Type", "application/octet-stream", false);
   response.write("");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/neverending_stylesheet_load.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/neverending_stylesheet_load.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/neverending_stylesheet_load.sjs	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/neverending_stylesheet_load.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
   response.setHeader("Content-Type", "text/css", false);
   response.write("");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/redirect.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/redirect.sjs	2021-10-20 19:28:32.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
   response.setHeader("Location", request.queryString, false);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/redundant_font_download.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/redundant_font_download.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/redundant_font_download.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/redundant_font_download.sjs	2021-10-20 19:28:32.000000000 +0000
@@ -1,9 +1,11 @@
-const BinaryOutputStream =
-  Components.Constructor("@mozilla.org/binaryoutputstream;1",
-                         "nsIBinaryOutputStream",
-                         "setOutputStream");
+const BinaryOutputStream = Components.Constructor(
+  "@mozilla.org/binaryoutputstream;1",
+  "nsIBinaryOutputStream",
+  "setOutputStream"
+);
 
 // this is simply a hex dump of a red square .PNG image
+/* eslint-disable prettier/prettier */
 const RED_SQUARE =
   [
     0x89,  0x50,  0x4E,  0x47,  0x0D,  0x0A,  0x1A,  0x0A,  0x00,  0x00,
@@ -19,11 +21,11 @@
     0x00,  0x00,  0x49,  0x45,  0x4E,  0x44,  0xAE,  0x42,  0x60,  0x82
   ];
 
-function handleRequest(request, response)
-{
+/* eslint-enable prettier/prettier */
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
@@ -36,23 +38,23 @@
 
   var stream = new BinaryOutputStream(response.bodyOutputStream);
 
-  if (query["q"] == "init") {
+  if (query.q == "init") {
     log = "init"; // initialize the log, and return a PNG image
     response.setHeader("Content-Type", "image/png", false);
     stream.writeByteArray(RED_SQUARE);
-  } else if (query["q"] == "image") {
-    log = log + ";" + query["q"];
+  } else if (query.q == "image") {
+    log = log + ";" + query.q;
     response.setHeader("Content-Type", "image/png", false);
     stream.writeByteArray(RED_SQUARE);
-  } else if (query["q"] == "font") {
-    log = log + ";" + query["q"];
+  } else if (query.q == "font") {
+    log = log + ";" + query.q;
     // we don't provide a real font; that's ok, OTS will just reject it
     response.write("Junk");
-  } else if (query["q"] == "report") {
+  } else if (query.q == "report") {
     // don't include the actual "report" request in the log we return
     response.write(log);
   } else {
-    log = log + ";" + query["q"];
+    log = log + ";" + query.q;
     response.setStatusLine(request.httpVersion, 404, "Not Found");
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/slow_broken_sheet.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/slow_broken_sheet.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/slow_broken_sheet.sjs	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/slow_broken_sheet.sjs	2021-10-20 19:28:32.000000000 +0000
@@ -1,16 +1,19 @@
 // Make sure our timer stays alive.
 let gTimer;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/html", false);
   response.setStatusLine("1.1", 404, "Not Found");
   response.processAsync();
 
   gTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
   // Wait for 1s before responding; this should usually make sure this load comes in last.
-  gTimer.init(() => {
-    response.write("<h1>Hello</h1>");
-    response.finish();
-  }, 1000, Ci.nsITimer.TYPE_ONE_SHOT);
+  gTimer.init(
+    () => {
+      response.write("<h1>Hello</h1>");
+      response.finish();
+    },
+    1000,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/slow_load.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/slow_load.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/slow_load.sjs	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/slow_load.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -12,14 +12,18 @@
 
   gTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
   // Wait for 1s before responding; this should usually make sure this load comes in last.
-  gTimer.init(() => {
-    if (isCss) {
-      // FIXME(emilio): This clamps the date to the 32-bit integer range which
-      // is what we use to store the z-index... We don't seem to store f64s
-      // anywhere in the specified values...
-      time = time % (Math.pow(2, 31) - 1);
-      response.write(":root { z-index: " + time + "}");
-    }
-    response.finish();
-  }, 1000, Ci.nsITimer.TYPE_ONE_SHOT);
+  gTimer.init(
+    () => {
+      if (isCss) {
+        // FIXME(emilio): This clamps the date to the 32-bit integer range which
+        // is what we use to store the z-index... We don't seem to store f64s
+        // anywhere in the specified values...
+        time = time % (Math.pow(2, 31) - 1);
+        response.write(":root { z-index: " + time + "}");
+      }
+      response.finish();
+    },
+    1000,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/slow_ok_sheet.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/slow_ok_sheet.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/slow_ok_sheet.sjs	2021-10-17 14:42:47.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/slow_ok_sheet.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,18 +1,21 @@
 // Make sure our timer stays alive.
 let gTimer;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/css", false);
   response.setStatusLine("1.1", 200, "OK");
   response.processAsync();
 
   gTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
   // Wait for 1s before responding; this should usually make sure this load comes in last.
-  gTimer.init(() => {
-    // This sheet _does_ still get applied even though its importing link
-    // overall reports failure...
-    response.write("nosuchelement { background: red }");
-    response.finish();
-  }, 1000, Ci.nsITimer.TYPE_ONE_SHOT);
+  gTimer.init(
+    () => {
+      // This sheet _does_ still get applied even though its importing link
+      // overall reports failure...
+      response.write("nosuchelement { background: red }");
+      response.finish();
+    },
+    1000,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/test_non_content_accessible_env_vars.html firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/test_non_content_accessible_env_vars.html
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/test_non_content_accessible_env_vars.html	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/test_non_content_accessible_env_vars.html	2021-10-20 19:28:33.000000000 +0000
@@ -0,0 +1,22 @@
+<!doctype html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div></div>
+<script>
+const NON_CONTENT_ACCESSIBLE_ENV_VARS = [
+  "-moz-gtk-csd-titlebar-radius",
+];
+
+const div = document.querySelector("div");
+for (const envVar of NON_CONTENT_ACCESSIBLE_ENV_VARS) {
+  test(function() {
+    div.style.setProperty("--foo", `env(${envVar},FALLBACK_VALUE)`);
+
+    assert_equals(
+      getComputedStyle(div).getPropertyValue("--foo"),
+      "FALLBACK_VALUE",
+      `${envVar} shouldn't be exposed to content`
+    );
+  });
+}
+</script>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/visited_image_loading.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/visited_image_loading.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/style/test/visited_image_loading.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/style/test/visited_image_loading.sjs	2021-10-20 19:28:32.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   var query = request.queryString;
   switch (query) {
@@ -17,21 +16,31 @@
       setState(query, getState(query) + "load");
       response.setStatusLine("1.1", 302, "Found");
       // redirect to a solid blue image
-      response.setHeader("Location", "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVQI12NgYPgPAAEDAQDZqt2zAAAAAElFTkSuQmCC");
+      response.setHeader(
+        "Location",
+        "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVQI12NgYPgPAAEDAQDZqt2zAAAAAElFTkSuQmCC"
+      );
       response.setHeader("Content-Type", "text/plain", false);
       break;
 
     case "waitforresult":
       response.setHeader("Content-Type", "application/ecmascript", false);
       response.write("var start = Date.now();\n");
-      // fall through!
+    // fall through!
 
     case "waitforresult-internal":
       response.setHeader("Content-Type", "application/ecmascript", false);
-      response.write("if ('" + getState("1l") + "' == 'load' && '" +
-                     getState("1v") + "' == '' && '" +
-                     getState("2l") + "' == 'load' && '" +
-                     getState("2v") + "' == '') { \n");
+      response.write(
+        "if ('" +
+          getState("1l") +
+          "' == 'load' && '" +
+          getState("1v") +
+          "' == '' && '" +
+          getState("2l") +
+          "' == 'load' && '" +
+          getState("2v") +
+          "' == '') { \n"
+      );
       response.write("setTimeout(function() {\n");
       response.write("var s = document.createElement('script');\n");
       response.write("s.src = 'visited_image_loading.sjs?result';\n");
@@ -39,21 +48,35 @@
       response.write("}, Math.max(100, 2 * (Date.now() - start)));\n");
       response.write("} else setTimeout(function() {\n");
       response.write("var s = document.createElement('script');\n");
-      response.write("s.src = 'visited_image_loading.sjs?waitforresult-internal';\n");
+      response.write(
+        "s.src = 'visited_image_loading.sjs?waitforresult-internal';\n"
+      );
       response.write("document.body.appendChild(s);");
       response.write("}, 10);\n");
       break;
 
     case "result":
       response.setHeader("Content-Type", "application/ecmascript", false);
-      response.write("is('" + getState("1l") +
-                     "', 'load', 'image 1l should have been loaded once')\n");
-      response.write("is('" + getState("1v") +
-                     "', '', 'image 1v should not have been loaded')\n");
-      response.write("is('" + getState("2l") +
-                     "', 'load', 'image 2l should have been loaded once')\n");
-      response.write("is('" + getState("2v") +
-                     "', '', 'image 2v should not have been loaded')\n");
+      response.write(
+        "is('" +
+          getState("1l") +
+          "', 'load', 'image 1l should have been loaded once')\n"
+      );
+      response.write(
+        "is('" +
+          getState("1v") +
+          "', '', 'image 1v should not have been loaded')\n"
+      );
+      response.write(
+        "is('" +
+          getState("2l") +
+          "', 'load', 'image 2l should have been loaded once')\n"
+      );
+      response.write(
+        "is('" +
+          getState("2v") +
+          "', '', 'image 2v should not have been loaded')\n"
+      );
       response.write("SimpleTest.finish()");
       break;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/tools/reftest/jar.mn firefox-trunk-95.0~a1~hg20211020r596404/layout/tools/reftest/jar.mn
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/tools/reftest/jar.mn	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/tools/reftest/jar.mn	2021-10-20 19:28:33.000000000 +0000
@@ -55,7 +55,7 @@
   res/PerTestCoverageUtils.jsm (../../../tools/code-coverage/PerTestCoverageUtils.jsm)
   res/input.css (../../../editor/reftests/xul/input.css)
   res/progress.css (../../../layout/reftests/forms/progress/style.css)
-*  res/manifest.jsm (manifest.jsm)
+  res/manifest.jsm (manifest.jsm)
   res/reftest.jsm (reftest.jsm)
 
 # Android doesn't ship global.css
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/tools/reftest/manifest.jsm firefox-trunk-95.0~a1~hg20211020r596404/layout/tools/reftest/manifest.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/tools/reftest/manifest.jsm	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/tools/reftest/manifest.jsm	2021-10-20 19:28:32.000000000 +0000
@@ -11,6 +11,7 @@
 Cu.import("resource://reftest/reftest.jsm", this);
 Cu.import("resource://gre/modules/Services.jsm");
 Cu.import("resource://gre/modules/NetUtil.jsm");
+Cu.import("resource://gre/modules/AppConstants.jsm");
 
 const NS_SCRIPTSECURITYMANAGER_CONTRACTID = "@mozilla.org/scriptsecuritymanager;1";
 const NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX = "@mozilla.org/network/protocol;1?name=";
@@ -549,39 +550,16 @@
 
     sandbox.MinGW = sandbox.winWidget && sysInfo.getPropertyAsBool("isMinGW");
 
-#if MOZ_ASAN
-    sandbox.AddressSanitizer = true;
-#else
-    sandbox.AddressSanitizer = false;
-#endif
-
-#if MOZ_TSAN
-    sandbox.ThreadSanitizer = true;
-#else
-    sandbox.ThreadSanitizer = false;
-#endif
-
-#if MOZ_WEBRTC
-    sandbox.webrtc = true;
-#else
-    sandbox.webrtc = false;
-#endif
-
-#if MOZ_JXL
-    sandbox.jxl = true;
-#else
-    sandbox.jxl = false;
-#endif
+    sandbox.AddressSanitizer = AppConstants.ASAN;
+    sandbox.ThreadSanitizer = AppConstants.TSAN;
+    sandbox.webrtc = AppConstants.MOZ_WEBRTC;
+    sandbox.jxl = AppConstants.MOZ_JXL;
 
     let retainedDisplayListsEnabled = prefs.getBoolPref("layout.display-list.retain", false);
     sandbox.retainedDisplayLists = retainedDisplayListsEnabled && !g.compareRetainedDisplayLists && !sandbox.useDrawSnapshot;
     sandbox.compareRetainedDisplayLists = g.compareRetainedDisplayLists;
 
-#ifdef RELEASE_OR_BETA
-    sandbox.release_or_beta = true;
-#else
-    sandbox.release_or_beta = false;
-#endif
+    sandbox.release_or_beta = AppConstants.RELEASE_OR_BETA;
 
     var hh = Cc[NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX + "http"].
                  getService(Ci.nsIHttpProtocolHandler);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/xul/nsMenuPopupFrame.cpp firefox-trunk-95.0~a1~hg20211020r596404/layout/xul/nsMenuPopupFrame.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/xul/nsMenuPopupFrame.cpp	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/xul/nsMenuPopupFrame.cpp	2021-10-20 19:28:32.000000000 +0000
@@ -274,6 +274,14 @@
   }
 }
 
+static Maybe<ColorScheme> GetWidgetColorScheme(const nsMenuPopupFrame* aFrame) {
+  const auto& scheme = aFrame->StyleUI()->mColorScheme.bits;
+  if (!scheme) {
+    return Nothing();
+  }
+  return Some(LookAndFeel::ColorSchemeForFrame(aFrame));
+}
+
 nsresult nsMenuPopupFrame::CreateWidgetForView(nsView* aView) {
   // Create a widget for ourselves.
   nsWidgetInitData widgetData;
@@ -357,7 +365,7 @@
   widget->SetWindowShadowStyle(GetShadowStyle());
   widget->SetWindowOpacity(StyleUIReset()->mWindowOpacity);
   widget->SetWindowTransform(ComputeWidgetTransform());
-  widget->SetColorScheme(LookAndFeel::ColorSchemeForFrame(this));
+  widget->SetColorScheme(GetWidgetColorScheme(this));
 
   // most popups don't have a title so avoid setting the title if there isn't
   // one
@@ -507,7 +515,7 @@
 
   if (StyleUI()->mColorScheme != aOldStyle->StyleUI()->mColorScheme) {
     if (nsIWidget* widget = GetWidget()) {
-      widget->SetColorScheme(LookAndFeel::ColorSchemeForFrame(this));
+      widget->SetColorScheme(GetWidgetColorScheme(this));
     }
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/layout/xul/test/file_bug386386.sjs firefox-trunk-95.0~a1~hg20211020r596404/layout/xul/test/file_bug386386.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/layout/xul/test/file_bug386386.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/layout/xul/test/file_bug386386.sjs	2021-10-20 19:28:32.000000000 +0000
@@ -3,6 +3,12 @@
 
 function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
-  response.setHeader("Content-Type", "application/xhtml+xml;charset=utf-8", false);
-  response.write("%3C%3Fxml%20version%3D%221.0%22%3F%3E%0A%3Cwindow%3E%3C/window%3E");
+  response.setHeader(
+    "Content-Type",
+    "application/xhtml+xml;charset=utf-8",
+    false
+  );
+  response.write(
+    "%3C%3Fxml%20version%3D%221.0%22%3F%3E%0A%3Cwindow%3E%3C/window%3E"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/mobile/android/app/mobile.js firefox-trunk-95.0~a1~hg20211020r596404/mobile/android/app/mobile.js
--- firefox-trunk-95.0~a1~hg20211017r596111/mobile/android/app/mobile.js	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/mobile/android/app/mobile.js	2021-10-20 19:28:33.000000000 +0000
@@ -519,8 +519,6 @@
 // 16 = Force hardware decoding
 pref("media.stagefright.omxcodec.flags", 0);
 
-pref("layers.enable-tiles", true);
-
 // Enable the dynamic toolbar
 pref("browser.chrome.dynamictoolbar", true);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/mobile/android/components/extensions/test/mochitest/file_bypass_cache.sjs firefox-trunk-95.0~a1~hg20211020r596404/mobile/android/components/extensions/test/mochitest/file_bypass_cache.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/mobile/android/components/extensions/test/mochitest/file_bypass_cache.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/mobile/android/components/extensions/test/mochitest/file_bypass_cache.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -6,6 +6,8 @@
   response.setHeader("Content-Type", "text/plain; charset=UTF-8", false);
 
   if (request.hasHeader("pragma") && request.hasHeader("cache-control")) {
-    response.write(`${request.getHeader("pragma")}:${request.getHeader("cache-control")}`);
+    response.write(
+      `${request.getHeader("pragma")}:${request.getHeader("cache-control")}`
+    );
   }
-}
\ No newline at end of file
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/mobile/android/components/extensions/test/mochitest/file_slowed_document.sjs firefox-trunk-95.0~a1~hg20211020r596404/mobile/android/components/extensions/test/mochitest/file_slowed_document.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/mobile/android/components/extensions/test/mochitest/file_slowed_document.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/mobile/android/components/extensions/test/mochitest/file_slowed_document.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -11,7 +11,11 @@
 
 const DELAY = 2 * 1000; // Delay one second before completing the request.
 
-let nsTimer = Components.Constructor("@mozilla.org/timer;1", "nsITimer", "initWithCallback");
+const nsTimer = Components.Constructor(
+  "@mozilla.org/timer;1",
+  "nsITimer",
+  "initWithCallback"
+);
 
 let timer;
 
@@ -31,11 +35,15 @@
 
   // Note: We need to store a reference to the timer to prevent it from being
   // canceled when it's GCed.
-  timer = new nsTimer(() => {
-    if (request.queryString.includes("with-iframe")) {
-      response.write(`<iframe src="${URL}?r=${Math.random()}"></iframe>`);
-    }
-    response.write(`</body></html>`);
-    response.finish();
-  }, DELAY, Ci.nsITimer.TYPE_ONE_SHOT);
+  timer = new nsTimer(
+    () => {
+      if (request.queryString.includes("with-iframe")) {
+        response.write(`<iframe src="${URL}?r=${Math.random()}"></iframe>`);
+      }
+      response.write(`</body></html>`);
+      response.finish();
+    },
+    DELAY,
+    Ci.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/mobile/android/geckoview/src/androidTest/assets/www/simple_redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/mobile/android/geckoview/src/androidTest/assets/www/simple_redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/mobile/android/geckoview/src/androidTest/assets/www/simple_redirect.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/mobile/android/geckoview/src/androidTest/assets/www/simple_redirect.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
   response.setHeader("Location", request.queryString, false);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/modules/libpref/init/all.js firefox-trunk-95.0~a1~hg20211020r596404/modules/libpref/init/all.js
--- firefox-trunk-95.0~a1~hg20211017r596111/modules/libpref/init/all.js	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/modules/libpref/init/all.js	2021-10-20 19:28:32.000000000 +0000
@@ -4491,7 +4491,11 @@
 pref("devtools.jsonview.enabled", true);
 
 // Default theme ("auto", "dark" or "light").
-pref("devtools.theme", "auto", sticky);
+#ifdef MOZ_DEV_EDITION
+  pref("devtools.theme", "dark", sticky);
+#else
+  pref("devtools.theme", "light", sticky);
+#endif
 
 // Completely disable DevTools entry points, as well as all DevTools command
 // line arguments This should be merged with devtools.enabled, see Bug 1440675.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/modules/libpref/init/StaticPrefList.yaml firefox-trunk-95.0~a1~hg20211020r596404/modules/libpref/init/StaticPrefList.yaml
--- firefox-trunk-95.0~a1~hg20211017r596111/modules/libpref/init/StaticPrefList.yaml	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/modules/libpref/init/StaticPrefList.yaml	2021-10-20 19:28:34.000000000 +0000
@@ -1312,6 +1312,13 @@
   value: false
   mirror: always
 
+# Testing-only pref to cause PBrowser creation for a specific BrowsingContext to
+# fail, to test the errored codepath.
+- name: browser.tabs.remote.testOnly.failPBrowserCreation.enabled
+  type: bool
+  value: false
+  mirror: always
+
 - name: browser.tabs.remote.desktopbehavior
   type: bool
   value: false
@@ -3753,6 +3760,14 @@
   value: false
   mirror: always
 
+# Points in the native bounds geometry are required to be quantized
+# sufficiently to prevent fingerprinting. The WebXR spec suggests 
+# quantizing to the nearest 5 centimeters.
+- name: dom.vr.webxr.quantization
+  type: AtomicFloat
+  value: 0.05f
+  mirror: always
+
 #ifdef XP_WIN
   # Control firing WidgetMouseEvent by handling Windows pointer messages or
   # mouse messages.
@@ -4920,6 +4935,13 @@
   value: true
   mirror: once
 
+#if !defined(MOZ_WIDGET_ANDROID)
+- name: gfx.egl.prefer-gles.enabled
+  type: bool
+  value: false
+  mirror: once
+#endif
+
 # [Windows] Whether registry FontSubstitutes entries are used unconditionally,
 # or only if the original font is not available.
 #if defined(XP_WIN)
@@ -5046,6 +5068,22 @@
   value: 0
   mirror: always
 
+# SwapInterval
+- name: gfx.swap-interval.glx
+  type: RelaxedAtomicBool
+  value: true
+  mirror: always
+
+- name: gfx.swap-interval.egl
+  type: RelaxedAtomicBool
+  mirror: always
+#ifdef MOZ_WIDGET_ANDROID
+  value: true
+#else
+  value: false
+#endif
+
+
 # Log severe performance warnings to the error console and profiles.
 # This should be use to quickly find which slow paths are used by test cases.
 - name: gfx.perf-warnings.enabled
@@ -6208,7 +6246,7 @@
 #if defined(ENABLE_WASM_MEMORY64)
 -   name: javascript.options.wasm_memory64
     type: bool
-    value: true
+    value: false
     mirror: always
 #endif  // defined(ENABLE_WASM_MEMORY64)
 
@@ -6346,15 +6384,6 @@
 #endif
   mirror: always
 
-- name: layers.enable-tiles
-  type: bool
-#if defined(XP_MACOSX) || defined (XP_OPENBSD)
-  value: true
-#else
-  value: false
-#endif
-  mirror: once
-
 # Force all possible layers to be always active layers.
 - name: layers.force-active
   type: bool
@@ -6503,30 +6532,6 @@
   value: true
   mirror: always
 
-# We allow for configurable and rectangular tile size to avoid wasting memory
-# on devices whose screen size does not align nicely to the default tile size.
-# Although layers can be any size, they are often the same size as the screen,
-# especially for width.
-- name: layers.tile-width
-  type: int32_t
-  value: 512
-  mirror: once
-
-- name: layers.tile-height
-  type: int32_t
-  value: 512
-  mirror: once
-
-# If this is set the tile size will only be treated as a suggestion.
-# On B2G we will round this to the stride of the underlying allocation.
-# On any platform we may later use the screen size and ignore
-# tile-width/tile-height entirely. Its recommended to turn this off
-# if you change the tile size.
-- name: layers.tiles.adjust
-  type: bool
-  value: true
-  mirror: once
-
 - name: layers.recycle-allocator-rdd
   type: bool
   value: true
@@ -6539,7 +6544,7 @@
 
 - name: layers.iosurfaceimage.use-nv12
   type: bool
-  value: false
+  value: true
   mirror: once
 
 #---------------------------------------------------------------------------
@@ -8833,7 +8838,9 @@
 
 - name: media.webrtc.platformencoder
   type: bool
-#if defined(MOZ_WIDGET_ANDROID) || defined(NIGHTLY_BUILD)
+#if defined(MOZ_WIDGET_ANDROID)
+  value: true
+#elif defined(NIGHTLY_BUILD) && !defined(MOZ_WIDGET_GTK)
   value: true
 #else
   value: false
@@ -10267,11 +10274,6 @@
 # Prefs starting with "privacy."
 #---------------------------------------------------------------------------
 
-- name: privacy.file_unique_origin
-  type: bool
-  value: true
-  mirror: always
-
 - name: privacy.fuzzyfox.clockgrainus
   type: RelaxedAtomicUint32
   value: 100
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/mozglue/baseprofiler/public/BaseProfilerMarkers.h firefox-trunk-95.0~a1~hg20211020r596404/mozglue/baseprofiler/public/BaseProfilerMarkers.h
--- firefox-trunk-95.0~a1~hg20211017r596111/mozglue/baseprofiler/public/BaseProfilerMarkers.h	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/mozglue/baseprofiler/public/BaseProfilerMarkers.h	2021-10-20 19:28:32.000000000 +0000
@@ -89,7 +89,12 @@
 #ifndef MOZ_GECKO_PROFILER
   return {};
 #else
-  if (!baseprofiler::profiler_can_accept_markers()) {
+  if ((aOptions.ThreadId().IsUnspecified() ||
+       aOptions.ThreadId().ThreadId() == profiler_current_thread_id())
+          ? !baseprofiler::profiler_thread_is_being_profiled()
+          // If targetting another thread, we can only check if the profiler
+          // is active&unpaused.
+          : !baseprofiler::detail::RacyFeatures::IsActiveAndUnpaused()) {
     return {};
   }
   return ::mozilla::baseprofiler::AddMarkerToBuffer(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/mozglue/baseprofiler/public/BaseProfilerState.h firefox-trunk-95.0~a1~hg20211020r596404/mozglue/baseprofiler/public/BaseProfilerState.h
--- firefox-trunk-95.0~a1~hg20211017r596111/mozglue/baseprofiler/public/BaseProfilerState.h	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/mozglue/baseprofiler/public/BaseProfilerState.h	2021-10-20 19:28:34.000000000 +0000
@@ -31,6 +31,7 @@
 namespace mozilla::baseprofiler {
 
 [[nodiscard]] inline bool profiler_is_active() { return false; }
+[[nodiscard]] inline bool profiler_is_active_and_unpaused() { return false; }
 
 }  // namespace mozilla::baseprofiler
 
@@ -309,21 +310,16 @@
   return baseprofiler::detail::RacyFeatures::IsActive();
 }
 
-// Same as profiler_is_active(), but with the same extra checks that determine
-// if the profiler would currently store markers. So this should be used before
-// doing some potentially-expensive work that's used in a marker. E.g.:
-//
-//   if (profiler_can_accept_markers()) {
-//     BASE_PROFILER_MARKER(name, OTHER, SomeMarkerType, expensivePayload);
-//   }
-[[nodiscard]] inline bool profiler_can_accept_markers() {
+// Same as profiler_is_active(), but also checks if the profiler is not paused.
+[[nodiscard]] inline bool profiler_is_active_and_unpaused() {
   return baseprofiler::detail::RacyFeatures::IsActiveAndUnpaused();
 }
 
-// Is the profiler active, and is the current thread being profiled?
-// (Same caveats and recommented usage as profiler_is_active().)
+// Is the profiler active and unpaused, and is the current thread being
+// profiled? (Same caveats and recommented usage as profiler_is_active().)
 [[nodiscard]] inline bool profiler_thread_is_being_profiled() {
-  return profiler_is_active() && baseprofiler::detail::IsThreadBeingProfiled();
+  return baseprofiler::detail::RacyFeatures::IsActiveAndUnpaused() &&
+         baseprofiler::detail::IsThreadBeingProfiled();
 }
 
 // Is the profiler active and paused? Returns false if the profiler is inactive.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/mozglue/build/TsanOptions.cpp firefox-trunk-95.0~a1~hg20211020r596404/mozglue/build/TsanOptions.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/mozglue/build/TsanOptions.cpp	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/mozglue/build/TsanOptions.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -231,12 +231,6 @@
          // Bug 1606803
          "race:ipv6_is_present\n"
 
-         // Bug 1606864
-         "race:nsSocketTransport::Close\n"
-         "race:nsSocketTransport::OnSocketDetached\n"
-         "race:nsSocketTransport::OnMsgInputClosed\n"
-         "race:nsSocketTransport::OpenOutputStream\n"
-
          // Bug 1615017
          "race:CacheFileMetadata::SetHash\n"
          "race:CacheFileMetadata::OnDataWritten\n"
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/mozglue/tests/TestBaseProfiler.cpp firefox-trunk-95.0~a1~hg20211020r596404/mozglue/tests/TestBaseProfiler.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/mozglue/tests/TestBaseProfiler.cpp	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/mozglue/tests/TestBaseProfiler.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -4082,6 +4082,8 @@
     printf("baseprofiler_pause()...\n");
     baseprofiler::profiler_pause();
 
+    MOZ_RELEASE_ASSERT(!baseprofiler::profiler_thread_is_being_profiled());
+
     Maybe<baseprofiler::ProfilerBufferInfo> info =
         baseprofiler::profiler_get_buffer_info();
     MOZ_RELEASE_ASSERT(info.isSome());
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/BackgroundFileSaver.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/BackgroundFileSaver.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/BackgroundFileSaver.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/BackgroundFileSaver.cpp	2021-10-20 19:28:32.000000000 +0000
@@ -121,8 +121,7 @@
 NS_IMETHODIMP
 BackgroundFileSaver::GetObserver(nsIBackgroundFileSaverObserver** aObserver) {
   NS_ENSURE_ARG_POINTER(aObserver);
-  *aObserver = mObserver;
-  NS_IF_ADDREF(*aObserver);
+  *aObserver = do_AddRef(mObserver).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/LoadInfo.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/LoadInfo.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/LoadInfo.cpp	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/LoadInfo.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -815,7 +815,7 @@
 
 NS_IMETHODIMP
 LoadInfo::GetLoadingPrincipal(nsIPrincipal** aLoadingPrincipal) {
-  NS_IF_ADDREF(*aLoadingPrincipal = mLoadingPrincipal);
+  *aLoadingPrincipal = do_AddRef(mLoadingPrincipal).take();
   return NS_OK;
 }
 
@@ -833,7 +833,7 @@
 
 NS_IMETHODIMP
 LoadInfo::GetPrincipalToInherit(nsIPrincipal** aPrincipalToInherit) {
-  NS_IF_ADDREF(*aPrincipalToInherit = mPrincipalToInherit);
+  *aPrincipalToInherit = do_AddRef(mPrincipalToInherit).take();
   return NS_OK;
 }
 
@@ -1752,7 +1752,7 @@
 
 NS_IMETHODIMP
 LoadInfo::GetResultPrincipalURI(nsIURI** aURI) {
-  NS_IF_ADDREF(*aURI = mResultPrincipalURI);
+  *aURI = do_AddRef(mResultPrincipalURI).take();
   return NS_OK;
 }
 
@@ -1893,7 +1893,7 @@
 
 NS_IMETHODIMP
 LoadInfo::GetCspEventListener(nsICSPEventListener** aCSPEventListener) {
-  NS_IF_ADDREF(*aCSPEventListener = mCSPEventListener);
+  *aCSPEventListener = do_AddRef(mCSPEventListener).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsDNSPrefetch.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsDNSPrefetch.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsDNSPrefetch.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsDNSPrefetch.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -16,19 +16,17 @@
 #include "mozilla/Atomics.h"
 #include "mozilla/Preferences.h"
 
-static nsIDNSService* sDNSService = nullptr;
+static mozilla::StaticRefPtr<nsIDNSService> sDNSService;
 
 nsresult nsDNSPrefetch::Initialize(nsIDNSService* aDNSService) {
   MOZ_ASSERT(NS_IsMainThread());
 
-  NS_IF_RELEASE(sDNSService);
   sDNSService = aDNSService;
-  NS_IF_ADDREF(sDNSService);
   return NS_OK;
 }
 
 nsresult nsDNSPrefetch::Shutdown() {
-  NS_IF_RELEASE(sDNSService);
+  sDNSService = nullptr;
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsIncrementalStreamLoader.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsIncrementalStreamLoader.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsIncrementalStreamLoader.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsIncrementalStreamLoader.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -41,7 +41,7 @@
 /* readonly attribute nsIRequest request; */
 NS_IMETHODIMP
 nsIncrementalStreamLoader::GetRequest(nsIRequest** aRequest) {
-  NS_IF_ADDREF(*aRequest = mRequest);
+  *aRequest = do_AddRef(mRequest).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsINetUtil.idl firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsINetUtil.idl
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsINetUtil.idl	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsINetUtil.idl	2021-10-20 19:28:33.000000000 +0000
@@ -157,6 +157,9 @@
   /** Skip C0 and DEL from unescaping */
   const unsigned long ESCAPE_URL_SKIP_CONTROL = 1 << 15;
 
+  /** %XX-escape external protocol handler URL */
+  const unsigned long ESCAPE_URL_EXT_HANDLER = 1 << 17;
+
   /**
    * %XX-Escape invalid chars in a URL segment.
    *
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsInputStreamChannel.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsInputStreamChannel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsInputStreamChannel.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsInputStreamChannel.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -55,7 +55,7 @@
 
 NS_IMETHODIMP
 nsInputStreamChannel::GetContentStream(nsIInputStream** stream) {
-  NS_IF_ADDREF(*stream = mContentStream);
+  *stream = do_AddRef(mContentStream).take();
   return NS_OK;
 }
 
@@ -87,8 +87,7 @@
 
 NS_IMETHODIMP
 nsInputStreamChannel::GetBaseURI(nsIURI** aBaseURI) {
-  *aBaseURI = mBaseURI;
-  NS_IF_ADDREF(*aBaseURI);
+  *aBaseURI = do_AddRef(mBaseURI).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsInputStreamPump.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsInputStreamPump.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsInputStreamPump.cpp	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsInputStreamPump.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -256,7 +256,7 @@
 nsInputStreamPump::GetLoadGroup(nsILoadGroup** aLoadGroup) {
   RecursiveMutexAutoLock lock(mMutex);
 
-  NS_IF_ADDREF(*aLoadGroup = mLoadGroup);
+  *aLoadGroup = do_AddRef(mLoadGroup).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsMIMEInputStream.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsMIMEInputStream.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsMIMEInputStream.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsMIMEInputStream.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -166,8 +166,7 @@
 NS_IMETHODIMP
 nsMIMEInputStream::GetData(nsIInputStream** aStream) {
   NS_ENSURE_ARG_POINTER(aStream);
-  *aStream = mStream;
-  NS_IF_ADDREF(*aStream);
+  *aStream = do_AddRef(mStream).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsNetUtil.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsNetUtil.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsNetUtil.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsNetUtil.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -2530,37 +2530,6 @@
     return false;
   }
 
-  if (!StaticPrefs::privacy_file_unique_origin()) {
-    //
-    // If the file to be loaded is in a subdirectory of the source
-    // (or same-dir if source is not a directory) then it will
-    // inherit its source principal and be scriptable by that source.
-    //
-    bool sourceIsDir;
-    bool allowed = false;
-    nsresult rv = sourceFile->IsDirectory(&sourceIsDir);
-    if (NS_SUCCEEDED(rv) && sourceIsDir) {
-      rv = sourceFile->Contains(targetFile, &allowed);
-    } else {
-      nsCOMPtr<nsIFile> sourceParent;
-      rv = sourceFile->GetParent(getter_AddRefs(sourceParent));
-      if (NS_SUCCEEDED(rv) && sourceParent) {
-        rv = sourceParent->Equals(targetFile, &allowed);
-        if (NS_FAILED(rv) || !allowed) {
-          rv = sourceParent->Contains(targetFile, &allowed);
-        } else {
-          MOZ_ASSERT(aAllowDirectoryTarget,
-                     "sourceFile->Parent == targetFile, but targetFile "
-                     "should've been disallowed if it is a directory");
-        }
-      }
-    }
-
-    if (NS_SUCCEEDED(rv) && allowed) {
-      return true;
-    }
-  }
-
   return false;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsRedirectHistoryEntry.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsRedirectHistoryEntry.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsRedirectHistoryEntry.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsRedirectHistoryEntry.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -29,13 +29,13 @@
 
 NS_IMETHODIMP
 nsRedirectHistoryEntry::GetReferrerURI(nsIURI** referrer) {
-  NS_IF_ADDREF(*referrer = mReferrer);
+  *referrer = do_AddRef(mReferrer).take();
   return NS_OK;
 }
 
 NS_IMETHODIMP
 nsRedirectHistoryEntry::GetPrincipal(nsIPrincipal** principal) {
-  NS_IF_ADDREF(*principal = mPrincipal);
+  *principal = do_AddRef(mPrincipal).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsSocketTransport2.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsSocketTransport2.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsSocketTransport2.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsSocketTransport2.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -2371,14 +2371,14 @@
 NS_IMETHODIMP
 nsSocketTransport::GetSecurityInfo(nsISupports** secinfo) {
   MutexAutoLock lock(mLock);
-  NS_IF_ADDREF(*secinfo = mSecInfo);
+  *secinfo = do_AddRef(mSecInfo).take();
   return NS_OK;
 }
 
 NS_IMETHODIMP
 nsSocketTransport::GetSecurityCallbacks(nsIInterfaceRequestor** callbacks) {
   MutexAutoLock lock(mLock);
-  NS_IF_ADDREF(*callbacks = mCallbacks);
+  *callbacks = do_AddRef(mCallbacks).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsSocketTransport2.h firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsSocketTransport2.h
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsSocketTransport2.h	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsSocketTransport2.h	2021-10-20 19:28:34.000000000 +0000
@@ -303,6 +303,9 @@
     return (!mProxyHost.IsEmpty() && !mProxyTransparent) ? mProxyHost : mHost;
   }
 
+  Atomic<bool> mInputClosed{true};
+  Atomic<bool> mOutputClosed{true};
+
   //-------------------------------------------------------------------------
   // members accessible only on the socket transport thread:
   //  (the exception being initialization/shutdown time)
@@ -311,8 +314,6 @@
   // socket state vars:
   uint32_t mState{STATE_CLOSED};  // STATE_??? flags
   bool mAttached{false};
-  bool mInputClosed{true};
-  bool mOutputClosed{true};
 
   // this flag is used to determine if the results of a host lookup arrive
   // recursively or not.  this flag is not protected by any lock.
@@ -456,7 +457,7 @@
   int32_t mKeepaliveRetryIntervalS{-1};
   int32_t mKeepaliveProbeCount{-1};
 
-  bool mDoNotRetryToConnect{false};
+  Atomic<bool> mDoNotRetryToConnect{false};
 
   // Whether the port remapping has already been applied.  We definitely want to
   // prevent duplicate calls in case of chaining remapping.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsSocketTransportService2.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsSocketTransportService2.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsSocketTransportService2.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsSocketTransportService2.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -686,7 +686,7 @@
     if (pollTimeout != PR_INTERVAL_NO_WAIT) {
       profiler_thread_wake();
     }
-    if (profiler_can_accept_markers()) {
+    if (profiler_thread_is_being_profiled()) {
       PROFILER_MARKER_TEXT(
           "SocketTransportService::Poll", NETWORK,
           MarkerTiming::IntervalUntilNowFrom(startTime),
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsUDPSocket.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsUDPSocket.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsUDPSocket.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsUDPSocket.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -205,7 +205,7 @@
 NS_IMETHODIMP
 nsUDPMessage::GetOutputStream(nsIOutputStream** aOutputStream) {
   NS_ENSURE_ARG_POINTER(aOutputStream);
-  NS_IF_ADDREF(*aOutputStream = mOutputStream);
+  *aOutputStream = do_AddRef(mOutputStream).take();
   return NS_OK;
 }
 
@@ -369,7 +369,7 @@
 NS_IMETHODIMP
 UDPMessageProxy::GetOutputStream(nsIOutputStream** aOutputStream) {
   NS_ENSURE_ARG_POINTER(aOutputStream);
-  NS_IF_ADDREF(*aOutputStream = mOutputStream);
+  *aOutputStream = do_AddRef(mOutputStream).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsURLHelper.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsURLHelper.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/nsURLHelper.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/nsURLHelper.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -35,9 +35,9 @@
 //----------------------------------------------------------------------------
 
 static bool gInitialized = false;
-static nsIURLParser* gNoAuthURLParser = nullptr;
-static nsIURLParser* gAuthURLParser = nullptr;
-static nsIURLParser* gStdURLParser = nullptr;
+static StaticRefPtr<nsIURLParser> gNoAuthURLParser;
+static StaticRefPtr<nsIURLParser> gAuthURLParser;
+static StaticRefPtr<nsIURLParser> gStdURLParser;
 
 static void InitGlobals() {
   nsCOMPtr<nsIURLParser> parser;
@@ -45,22 +45,19 @@
   parser = do_GetService(NS_NOAUTHURLPARSER_CONTRACTID);
   NS_ASSERTION(parser, "failed getting 'noauth' url parser");
   if (parser) {
-    gNoAuthURLParser = parser.get();
-    NS_ADDREF(gNoAuthURLParser);
+    gNoAuthURLParser = parser;
   }
 
   parser = do_GetService(NS_AUTHURLPARSER_CONTRACTID);
   NS_ASSERTION(parser, "failed getting 'auth' url parser");
   if (parser) {
-    gAuthURLParser = parser.get();
-    NS_ADDREF(gAuthURLParser);
+    gAuthURLParser = parser;
   }
 
   parser = do_GetService(NS_STDURLPARSER_CONTRACTID);
   NS_ASSERTION(parser, "failed getting 'std' url parser");
   if (parser) {
-    gStdURLParser = parser.get();
-    NS_ADDREF(gStdURLParser);
+    gStdURLParser = parser;
   }
 
   gInitialized = true;
@@ -68,11 +65,11 @@
 
 void net_ShutdownURLHelper() {
   if (gInitialized) {
-    NS_IF_RELEASE(gNoAuthURLParser);
-    NS_IF_RELEASE(gAuthURLParser);
-    NS_IF_RELEASE(gStdURLParser);
     gInitialized = false;
   }
+  gNoAuthURLParser = nullptr;
+  gAuthURLParser = nullptr;
+  gStdURLParser = nullptr;
 }
 
 //----------------------------------------------------------------------------
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/TLSServerSocket.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/TLSServerSocket.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/base/TLSServerSocket.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/base/TLSServerSocket.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -134,8 +134,7 @@
   if (NS_WARN_IF(!aCert)) {
     return NS_ERROR_INVALID_POINTER;
   }
-  *aCert = mServerCert;
-  NS_IF_ADDREF(*aCert);
+  *aCert = do_AddRef(mServerCert).take();
   return NS_OK;
 }
 
@@ -305,8 +304,7 @@
   if (NS_WARN_IF(!aSocket)) {
     return NS_ERROR_INVALID_POINTER;
   }
-  *aSocket = mServerSocket;
-  NS_IF_ADDREF(*aSocket);
+  *aSocket = do_AddRef(mServerSocket).take();
   return NS_OK;
 }
 
@@ -315,8 +313,7 @@
   if (NS_WARN_IF(!aStatus)) {
     return NS_ERROR_INVALID_POINTER;
   }
-  *aStatus = this;
-  NS_IF_ADDREF(*aStatus);
+  *aStatus = do_AddRef(this).take();
   return NS_OK;
 }
 
@@ -325,8 +322,7 @@
   if (NS_WARN_IF(!aCert)) {
     return NS_ERROR_INVALID_POINTER;
   }
-  *aCert = mPeerCert;
-  NS_IF_ADDREF(*aCert);
+  *aCert = do_AddRef(mPeerCert).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/cache2/CacheEntry.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/cache2/CacheEntry.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/cache2/CacheEntry.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/cache2/CacheEntry.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -1325,7 +1325,7 @@
   {
     mozilla::MutexAutoLock lock(mLock);
     if (mSecurityInfoLoaded) {
-      NS_IF_ADDREF(*aSecurityInfo = mSecurityInfo);
+      *aSecurityInfo = do_AddRef(mSecurityInfo).take();
       return NS_OK;
     }
   }
@@ -1350,7 +1350,7 @@
     mSecurityInfo.swap(secInfo);
     mSecurityInfoLoaded = true;
 
-    NS_IF_ADDREF(*aSecurityInfo = mSecurityInfo);
+    *aSecurityInfo = do_AddRef(mSecurityInfo).take();
   }
 
   return NS_OK;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/cookie/test/browser/oversize.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/cookie/test/browser/oversize.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/cookie/test/browser/oversize.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/cookie/test/browser/oversize.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -4,6 +4,14 @@
   const maxBytesPerCookie = 4096;
   const maxBytesPerCookiePath = 1024;
 
-  aResponse.setHeader("Set-Cookie", "a=" + Array(maxBytesPerCookie + 1).join('x'), true);
-  aResponse.setHeader("Set-Cookie", "b=c; path=/" + Array(maxBytesPerCookiePath + 1).join('x'), true);
+  aResponse.setHeader(
+    "Set-Cookie",
+    "a=" + Array(maxBytesPerCookie + 1).join("x"),
+    true
+  );
+  aResponse.setHeader(
+    "Set-Cookie",
+    "b=c; path=/" + Array(maxBytesPerCookiePath + 1).join("x"),
+    true
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/cookie/test/browser/server.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/cookie/test/browser/server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/cookie/test/browser/server.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/cookie/test/browser/server.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,6 +1,6 @@
 function handleRequest(aRequest, aResponse) {
   aResponse.setStatusLine(aRequest.httpVersion, 200);
-  if (aRequest.hasHeader('Cookie')) {
+  if (aRequest.hasHeader("Cookie")) {
     aResponse.write("cookie-present");
   } else {
     aResponse.setHeader("Set-Cookie", "foopy=1");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/cookie/test/mochitest/cookie.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/cookie/test/mochitest/cookie.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/cookie/test/mochitest/cookie.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/cookie/test/mochitest/cookie.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -9,24 +9,35 @@
   }
 
   if (parts.includes("fetch")) {
-    setState("data", JSON.stringify({type: "fetch", hasCookie: aRequest.hasHeader("Cookie") }));
+    setState(
+      "data",
+      JSON.stringify({ type: "fetch", hasCookie: aRequest.hasHeader("Cookie") })
+    );
     aResponse.write("Hello world!");
     return;
   }
 
   if (parts.includes("xhr")) {
-    setState("data", JSON.stringify({type: "xhr", hasCookie: aRequest.hasHeader("Cookie") }));
+    setState(
+      "data",
+      JSON.stringify({ type: "xhr", hasCookie: aRequest.hasHeader("Cookie") })
+    );
     aResponse.write("Hello world!");
     return;
   }
 
   if (parts.includes("image")) {
-    setState("data", JSON.stringify({type: "image", hasCookie: aRequest.hasHeader("Cookie") }));
+    setState(
+      "data",
+      JSON.stringify({ type: "image", hasCookie: aRequest.hasHeader("Cookie") })
+    );
 
     // A 1x1 PNG image.
     // Source: https://commons.wikimedia.org/wiki/File:1x1.png (Public Domain)
-    const IMAGE = atob("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
-                       "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=");
+    const IMAGE = atob(
+      "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
+        "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII="
+    );
 
     aResponse.setHeader("Content-Type", "image/png", false);
     aResponse.write(IMAGE);
@@ -34,7 +45,13 @@
   }
 
   if (parts.includes("script")) {
-    setState("data", JSON.stringify({type: "script", hasCookie: aRequest.hasHeader("Cookie") }));
+    setState(
+      "data",
+      JSON.stringify({
+        type: "script",
+        hasCookie: aRequest.hasHeader("Cookie"),
+      })
+    );
 
     aResponse.setHeader("Content-Type", "text/javascript", false);
     aResponse.write("window.scriptLoaded();");
@@ -42,7 +59,13 @@
   }
 
   if (parts.includes("worker")) {
-    setState("data", JSON.stringify({type: "worker", hasCookie: aRequest.hasHeader("Cookie") }));
+    setState(
+      "data",
+      JSON.stringify({
+        type: "worker",
+        hasCookie: aRequest.hasHeader("Cookie"),
+      })
+    );
 
     function w() {
       onmessage = e => {
@@ -53,7 +76,9 @@
         }
 
         if (e.data == "fetch") {
-          fetch("cookie.sjs?fetch&" + Math.random()).then(r => r.text()).then(_ => postMessage(42));
+          fetch("cookie.sjs?fetch&" + Math.random())
+            .then(r => r.text())
+            .then(_ => postMessage(42));
           return;
         }
 
@@ -65,7 +90,7 @@
         }
       };
       postMessage(42);
-    };
+    }
 
     aResponse.setHeader("Content-Type", "text/javascript", false);
     aResponse.write(w.toString() + "; w();");
@@ -73,14 +98,26 @@
   }
 
   if (parts.includes("subworker")) {
-    setState("data", JSON.stringify({type: "subworker", hasCookie: aRequest.hasHeader("Cookie") }));
+    setState(
+      "data",
+      JSON.stringify({
+        type: "subworker",
+        hasCookie: aRequest.hasHeader("Cookie"),
+      })
+    );
     aResponse.setHeader("Content-Type", "text/javascript", false);
     aResponse.write("42");
     return;
   }
 
   if (parts.includes("sharedworker")) {
-    setState("data", JSON.stringify({type: "sharedworker", hasCookie: aRequest.hasHeader("Cookie") }));
+    setState(
+      "data",
+      JSON.stringify({
+        type: "sharedworker",
+        hasCookie: aRequest.hasHeader("Cookie"),
+      })
+    );
 
     function w() {
       onconnect = e => {
@@ -92,7 +129,9 @@
           }
 
           if (evt.data == "fetch") {
-            fetch("cookie.sjs?fetch&" + Math.random()).then(r => r.text()).then(_ => e.ports[0].postMessage(42));
+            fetch("cookie.sjs?fetch&" + Math.random())
+              .then(r => r.text())
+              .then(_ => e.ports[0].postMessage(42));
             return;
           }
 
@@ -105,7 +144,7 @@
         };
         e.ports[0].postMessage(42);
       };
-    };
+    }
 
     aResponse.setHeader("Content-Type", "text/javascript", false);
     aResponse.write(w.toString() + "; w();");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/dns/effective_tld_names.dat firefox-trunk-95.0~a1~hg20211020r596404/netwerk/dns/effective_tld_names.dat
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/dns/effective_tld_names.dat	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/dns/effective_tld_names.dat	2021-10-20 19:28:34.000000000 +0000
@@ -842,7 +842,13 @@
 inf.cu
 
 // cv : https://en.wikipedia.org/wiki/.cv
+// cv : http://www.dns.cv/tldcv_portal/do?com=DS;5446457100;111;+PAGE(4000018)+K-CAT-CODIGO(RDOM)+RCNT(100); <- registration rules
 cv
+com.cv
+edu.cv
+int.cv
+nome.cv
+org.cv
 
 // cw : http://www.una.cw/cw_registry/
 // Confirmed by registry <registry@una.net> 2013-03-26
@@ -1179,6 +1185,7 @@
 web.gu
 
 // gw : https://en.wikipedia.org/wiki/.gw
+// gw : https://nic.gw/regras/
 gw
 
 // gy : https://en.wikipedia.org/wiki/.gy
@@ -5853,7 +5860,7 @@
 org.ps
 net.ps
 
-// pt : http://online.dns.pt/dns/start_dns
+// pt : https://www.dns.pt/en/domain/pt-terms-and-conditions-registration-rules/
 pt
 net.pt
 gov.pt
@@ -10791,6 +10798,10 @@
 // Submitted by Apigee Security Team <security@apigee.com>
 apigee.io
 
+// Apphud : https://apphud.com
+// Submitted by Alexander Selivanov <alex@apphud.com>
+siiites.com
+
 // Appspace : https://www.appspace.com
 // Submitted by Appspace Security Team <security@appspace.com>
 appspacehosted.com
@@ -11665,10 +11676,6 @@
 onred.one
 staging.onred.one
 
-// One.com: https://www.one.com/
-// Submitted by Jacob Bunk Nielsen <jbn@one.com>
-service.one
-
 // EU.org https://eu.org/
 // Submitted by Pierre Beyssac <hostmaster@eu.org>
 eu.org
@@ -12912,6 +12919,10 @@
 // Submitted by Vicary Archangel <vicary@omniwe.com>
 omniwe.site
 
+// One.com: https://www.one.com/
+// Submitted by Jacob Bunk Nielsen <jbn@one.com>
+service.one
+
 // One Fold Media : http://www.onefoldmedia.com/
 // Submitted by Eddie Jones <eddie@onefoldmedia.com>
 nid.io
@@ -13466,6 +13477,11 @@
 // Submitted by Bjoern Henke <dev-server@taifun-software.de>
 taifun-dns.de
 
+// Tailscale Inc. : https://www.tailscale.com
+// Submitted by David Anderson <danderson@tailscale.com>
+beta.tailscale.net
+ts.net
+
 // TASK geographical domains (www.task.gda.pl/uslugi/dns)
 gda.pl
 gdansk.pl
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/ipc/DocumentLoadListener.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/ipc/DocumentLoadListener.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/ipc/DocumentLoadListener.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/ipc/DocumentLoadListener.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -1467,6 +1467,21 @@
   }
 }
 
+DocumentLoadListener::ProcessBehavior GetProcessSwitchBehavior(
+    Element* aBrowserElement) {
+  if (aBrowserElement->HasAttribute(u"maychangeremoteness"_ns)) {
+    return DocumentLoadListener::ProcessBehavior::PROCESS_BEHAVIOR_STANDARD;
+  }
+  nsCOMPtr<nsIBrowser> browser = aBrowserElement->AsBrowser();
+  bool isRemoteBrowser = false;
+  browser->GetIsRemoteBrowser(&isRemoteBrowser);
+  if (isRemoteBrowser) {
+    return DocumentLoadListener::ProcessBehavior::
+        PROCESS_BEHAVIOR_SUBFRAME_ONLY;
+  }
+  return DocumentLoadListener::ProcessBehavior::PROCESS_BEHAVIOR_DISABLED;
+}
+
 static bool ContextCanProcessSwitch(CanonicalBrowsingContext* aBrowsingContext,
                                     WindowGlobalParent* aParentWindow) {
   if (NS_WARN_IF(!aBrowsingContext)) {
@@ -1507,26 +1522,20 @@
     return false;
   }
 
-  nsIBrowser::ProcessBehavior processBehavior =
-      nsIBrowser::PROCESS_BEHAVIOR_DISABLED;
-  nsresult rv = browser->GetProcessSwitchBehavior(&processBehavior);
-  if (NS_FAILED(rv)) {
-    MOZ_ASSERT_UNREACHABLE(
-        "nsIBrowser::GetProcessSwitchBehavior shouldn't fail");
-    MOZ_LOG(gProcessIsolationLog, LogLevel::Warning,
-            ("Process Switch Abort: failed to get process switch behavior"));
-    return false;
-  }
+  DocumentLoadListener::ProcessBehavior processBehavior =
+      GetProcessSwitchBehavior(browserElement);
 
   // Check if the process switch we're considering is disabled by the
   // <browser>'s process behavior.
-  if (processBehavior == nsIBrowser::PROCESS_BEHAVIOR_DISABLED) {
+  if (processBehavior ==
+      DocumentLoadListener::ProcessBehavior::PROCESS_BEHAVIOR_DISABLED) {
     MOZ_LOG(gProcessIsolationLog, LogLevel::Warning,
             ("Process Switch Abort: switch disabled by <browser>"));
     return false;
   }
-  if (!aParentWindow &&
-      processBehavior == nsIBrowser::PROCESS_BEHAVIOR_SUBFRAME_ONLY) {
+  if (!aParentWindow && processBehavior ==
+                            DocumentLoadListener::ProcessBehavior::
+                                PROCESS_BEHAVIOR_SUBFRAME_ONLY) {
     MOZ_LOG(gProcessIsolationLog, LogLevel::Warning,
             ("Process Switch Abort: toplevel switch disabled by <browser>"));
     return false;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/ipc/DocumentLoadListener.h firefox-trunk-95.0~a1~hg20211020r596404/netwerk/ipc/DocumentLoadListener.h
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/ipc/DocumentLoadListener.h	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/ipc/DocumentLoadListener.h	2021-10-20 19:28:34.000000000 +0000
@@ -289,6 +289,25 @@
 
   bool IsDocumentLoad() const { return mIsDocumentLoad; }
 
+  // Determine what process switching behavior a browser element should have.
+  enum ProcessBehavior : uint8_t {
+    // Gecko won't automatically change which process this frame, or it's
+    // subframes, are loaded in.
+    PROCESS_BEHAVIOR_DISABLED,
+
+    // If `useRemoteTabs` is enabled, Gecko will change which process this frame
+    // is loaded in automatically, without calling `performProcessSwitch`.
+    // When `useRemoteSubframes` is enabled, subframes will change processes.
+    PROCESS_BEHAVIOR_STANDARD,
+
+    // Gecko won't automatically change which process this frame is loaded, but
+    // when `useRemoteSubframes` is enabled, subframes will change processes.
+    //
+    // NOTE: This configuration is included only for backwards compatibility,
+    // and will be removed, as it can easily lead to invalid behavior.
+    PROCESS_BEHAVIOR_SUBFRAME_ONLY,
+  };
+
  protected:
   virtual ~DocumentLoadListener();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/file/nsFileChannel.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/file/nsFileChannel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/file/nsFileChannel.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/file/nsFileChannel.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -513,6 +513,6 @@
 
 NS_IMETHODIMP
 nsFileChannel::GetUploadStream(nsIInputStream** result) {
-  NS_IF_ADDREF(*result = mUploadStream);
+  *result = do_AddRef(mUploadStream).take();
   return NS_OK;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/gio/nsGIOProtocolHandler.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/gio/nsGIOProtocolHandler.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/gio/nsGIOProtocolHandler.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/gio/nsGIOProtocolHandler.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -164,18 +164,7 @@
   NS_DECL_THREADSAFE_ISUPPORTS
   NS_DECL_NSIINPUTSTREAM
 
-  explicit nsGIOInputStream(const nsCString& uriSpec)
-      : mSpec(uriSpec),
-        mChannel(nullptr),
-        mHandle(nullptr),
-        mStream(nullptr),
-        mBytesRemaining(UINT64_MAX),
-        mStatus(NS_OK),
-        mDirList(nullptr),
-        mDirListPtr(nullptr),
-        mDirBufCursor(0),
-        mDirOpen(false),
-        mMonitorMountInProgress("GIOInputStream::MountFinished") {}
+  explicit nsGIOInputStream(const nsCString& uriSpec) : mSpec(uriSpec) {}
 
   void SetChannel(nsIChannel* channel) {
     // We need to hold an owning reference to our channel.  This is done
@@ -191,7 +180,7 @@
     // cycle since the channel likely owns this stream.  This reference
     // cycle is broken in our Close method.
 
-    NS_ADDREF(mChannel = channel);
+    mChannel = do_AddRef(channel).take();
   }
   void SetMountResult(MountOperationResult result, gint error_code);
 
@@ -204,19 +193,19 @@
   nsresult DoOpenDirectory();
   nsresult DoOpenFile(GFileInfo* info);
   nsCString mSpec;
-  nsIChannel* mChannel;  // manually refcounted
-  GFile* mHandle;
-  GFileInputStream* mStream;
-  uint64_t mBytesRemaining;
-  nsresult mStatus;
-  GList* mDirList;
-  GList* mDirListPtr;
+  nsIChannel* mChannel{nullptr};  // manually refcounted
+  GFile* mHandle{nullptr};
+  GFileInputStream* mStream{nullptr};
+  uint64_t mBytesRemaining{UINT64_MAX};
+  nsresult mStatus{NS_OK};
+  GList* mDirList{nullptr};
+  GList* mDirListPtr{nullptr};
   nsCString mDirBuf;
-  uint32_t mDirBufCursor;
-  bool mDirOpen;
+  uint32_t mDirBufCursor{0};
+  bool mDirOpen{false};
   MountOperationResult mMountRes =
       MountOperationResult::MOUNT_OPERATION_SUCCESS;
-  mozilla::Monitor mMonitorMountInProgress;
+  mozilla::Monitor mMonitorMountInProgress{"GIOInputStream::MountFinished"};
   gint mMountErrorCode{};
 };
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/ClassifierDummyChannel.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/ClassifierDummyChannel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/ClassifierDummyChannel.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/ClassifierDummyChannel.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -96,12 +96,6 @@
   SetLoadInfo(aLoadInfo);
 }
 
-ClassifierDummyChannel::~ClassifierDummyChannel() {
-  NS_ReleaseOnMainThread("ClassifierDummyChannel::mURI", mURI.forget());
-  NS_ReleaseOnMainThread("ClassifierDummyChannel::mTopWindowURI",
-                         mTopWindowURI.forget());
-}
-
 void ClassifierDummyChannel::AddClassificationFlags(
     uint32_t aClassificationFlags, bool aThirdParty) {
   if (aThirdParty) {
@@ -117,7 +111,7 @@
 
 NS_IMETHODIMP
 ClassifierDummyChannel::GetOriginalURI(nsIURI** aOriginalURI) {
-  NS_IF_ADDREF(*aOriginalURI = mURI);
+  *aOriginalURI = do_AddRef(mURI).take();
   return NS_OK;
 }
 
@@ -129,7 +123,7 @@
 
 NS_IMETHODIMP
 ClassifierDummyChannel::GetURI(nsIURI** aURI) {
-  NS_IF_ADDREF(*aURI = mURI);
+  *aURI = do_AddRef(mURI).take();
   return NS_OK;
 }
 
@@ -239,7 +233,7 @@
 
 NS_IMETHODIMP
 ClassifierDummyChannel::GetLoadInfo(nsILoadInfo** aLoadInfo) {
-  NS_IF_ADDREF(*aLoadInfo = mLoadInfo);
+  *aLoadInfo = do_AddRef(mLoadInfo).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/ClassifierDummyChannel.h firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/ClassifierDummyChannel.h
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/ClassifierDummyChannel.h	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/ClassifierDummyChannel.h	2021-10-20 19:28:34.000000000 +0000
@@ -71,7 +71,7 @@
   void AddClassificationFlags(uint32_t aClassificationFlags, bool aThirdParty);
 
  private:
-  ~ClassifierDummyChannel();
+  ~ClassifierDummyChannel() = default;
 
   nsCOMPtr<nsILoadInfo> mLoadInfo;
   nsCOMPtr<nsIURI> mURI;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/HttpBaseChannel.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/HttpBaseChannel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/HttpBaseChannel.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/HttpBaseChannel.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -434,8 +434,7 @@
 NS_IMETHODIMP
 HttpBaseChannel::GetLoadGroup(nsILoadGroup** aLoadGroup) {
   NS_ENSURE_ARG_POINTER(aLoadGroup);
-  *aLoadGroup = mLoadGroup;
-  NS_IF_ADDREF(*aLoadGroup);
+  *aLoadGroup = do_AddRef(mLoadGroup).take();
   return NS_OK;
 }
 
@@ -542,8 +541,7 @@
 NS_IMETHODIMP
 HttpBaseChannel::GetOwner(nsISupports** aOwner) {
   NS_ENSURE_ARG_POINTER(aOwner);
-  *aOwner = mOwner;
-  NS_IF_ADDREF(*aOwner);
+  *aOwner = do_AddRef(mOwner).take();
   return NS_OK;
 }
 
@@ -562,7 +560,7 @@
 
 NS_IMETHODIMP
 HttpBaseChannel::GetLoadInfo(nsILoadInfo** aLoadInfo) {
-  NS_IF_ADDREF(*aLoadInfo = mLoadInfo);
+  *aLoadInfo = do_AddRef(mLoadInfo).take();
   return NS_OK;
 }
 
@@ -573,8 +571,7 @@
 
 NS_IMETHODIMP
 HttpBaseChannel::GetNotificationCallbacks(nsIInterfaceRequestor** aCallbacks) {
-  *aCallbacks = mCallbacks;
-  NS_IF_ADDREF(*aCallbacks);
+  *aCallbacks = do_AddRef(mCallbacks).take();
   return NS_OK;
 }
 
@@ -797,8 +794,7 @@
 NS_IMETHODIMP
 HttpBaseChannel::GetUploadStream(nsIInputStream** stream) {
   NS_ENSURE_ARG_POINTER(stream);
-  *stream = mUploadStream;
-  NS_IF_ADDREF(*stream);
+  *stream = do_AddRef(mUploadStream).take();
   return NS_OK;
 }
 
@@ -1280,8 +1276,7 @@
       if (val) LOG(("Unknown content encoding '%s', ignoring\n", val));
     }
   }
-  *aNewNextListener = nextListener;
-  NS_IF_ADDREF(*aNewNextListener);
+  *aNewNextListener = do_AddRef(nextListener).take();
   return NS_OK;
 }
 
@@ -2124,15 +2119,14 @@
 #endif
     }
   }
-  NS_IF_ADDREF(*aTopWindowURI = mTopWindowURI);
+  *aTopWindowURI = do_AddRef(mTopWindowURI).take();
   return rv;
 }
 
 NS_IMETHODIMP
 HttpBaseChannel::GetDocumentURI(nsIURI** aDocumentURI) {
   NS_ENSURE_ARG_POINTER(aDocumentURI);
-  *aDocumentURI = mDocumentURI;
-  NS_IF_ADDREF(*aDocumentURI);
+  *aDocumentURI = do_AddRef(mDocumentURI).take();
   return NS_OK;
 }
 
@@ -3414,7 +3408,7 @@
 NS_IMETHODIMP
 HttpBaseChannel::GetApiRedirectToURI(nsIURI** aResult) {
   NS_ENSURE_ARG_POINTER(aResult);
-  NS_IF_ADDREF(*aResult = mAPIRedirectToURI);
+  *aResult = do_AddRef(mAPIRedirectToURI).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/HttpChannelChild.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/HttpChannelChild.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/HttpChannelChild.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/HttpChannelChild.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -867,7 +867,7 @@
   mCacheReadStart = aTiming.cacheReadStart();
   mCacheReadEnd = aTiming.cacheReadEnd();
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsAutoCString requestMethod;
     GetRequestMethod(requestMethod);
     nsAutoCString contentType;
@@ -1357,7 +1357,7 @@
 
   ResourceTimingStructArgsToTimingsStruct(timing, mTransactionTimings);
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsAutoCString requestMethod;
     GetRequestMethod(requestMethod);
     nsAutoCString contentType;
@@ -1664,7 +1664,7 @@
    */
 
   mLastStatusReported = TimeStamp::Now();
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsAutoCString requestMethod;
     GetRequestMethod(requestMethod);
 
@@ -1886,7 +1886,7 @@
 NS_IMETHODIMP
 HttpChannelChild::GetSecurityInfo(nsISupports** aSecurityInfo) {
   NS_ENSURE_ARG_POINTER(aSecurityInfo);
-  NS_IF_ADDREF(*aSecurityInfo = mSecurityInfo);
+  *aSecurityInfo = do_AddRef(mSecurityInfo).take();
   return NS_OK;
 }
 
@@ -1990,7 +1990,7 @@
   gHttpHandler->OnOpeningRequest(this);
 
   mLastStatusReported = TimeStamp::Now();
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsAutoCString requestMethod;
     GetRequestMethod(requestMethod);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/HttpConnectionBase.h firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/HttpConnectionBase.h
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/HttpConnectionBase.h	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/HttpConnectionBase.h	2021-10-20 19:28:34.000000000 +0000
@@ -105,7 +105,7 @@
   virtual bool CanAcceptWebsocket() { return false; }
 
   void GetConnectionInfo(nsHttpConnectionInfo** ci) {
-    NS_IF_ADDREF(*ci = mConnInfo);
+    *ci = do_AddRef(mConnInfo).take();
   }
   virtual void GetSecurityInfo(nsISupports** result) = 0;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/InterceptedHttpChannel.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/InterceptedHttpChannel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/InterceptedHttpChannel.cpp	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/InterceptedHttpChannel.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -92,7 +92,7 @@
   // We save this timestamp from outside of the if block in case we enable the
   // profiler after AsyncOpen().
   mLastStatusReported = TimeStamp::Now();
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsAutoCString requestMethod;
     GetRequestMethod(requestMethod);
 
@@ -505,7 +505,7 @@
 
   mCanceled = true;
 
-  if (mLastStatusReported && profiler_can_accept_markers()) {
+  if (mLastStatusReported && profiler_thread_is_being_profiled()) {
     // These do allocations/frees/etc; avoid if not active
     // mLastStatusReported can be null if Cancel is called before we added the
     // start marker.
@@ -675,7 +675,7 @@
                             mLoadFlags);
   NS_ENSURE_SUCCESS(rv, rv);
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsAutoCString requestMethod;
     GetRequestMethod(requestMethod);
 
@@ -1043,7 +1043,7 @@
   // Register entry to the PerformanceStorage resource timing
   MaybeReportTimingData();
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     // These do allocations/frees/etc; avoid if not active
     nsAutoCString requestMethod;
     GetRequestMethod(requestMethod);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/NetworkMarker.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/NetworkMarker.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/NetworkMarker.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/NetworkMarker.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -23,7 +23,7 @@
     UniquePtr<ProfileChunkedBuffer> aSource,
     const Maybe<nsDependentCString>& aContentType, nsIURI* aRedirectURI,
     uint32_t aRedirectFlags, uint64_t aRedirectChannelId) {
-  if (!profiler_can_accept_markers()) {
+  if (!profiler_thread_is_being_profiled()) {
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/nsHttpChannel.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/nsHttpChannel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/nsHttpChannel.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/nsHttpChannel.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -5014,7 +5014,7 @@
        "[this=%p newChannel=%p preserveMethod=%d]",
        this, newChannel, preserveMethod));
 
-  if (!mEndMarkerAdded && profiler_can_accept_markers()) {
+  if (!mEndMarkerAdded && profiler_thread_is_being_profiled()) {
     mEndMarkerAdded = true;
 
     nsAutoCString requestMethod;
@@ -5542,7 +5542,7 @@
   mStatus = NS_FAILED(status) ? status : NS_ERROR_ABORT;
 
   if (mLastStatusReported && !mEndMarkerAdded &&
-      profiler_can_accept_markers()) {
+      profiler_thread_is_being_profiled()) {
     // These do allocations/frees/etc; avoid if not active
     // mLastStatusReported can be null if Cancel is called before we added the
     // start marker.
@@ -5733,8 +5733,7 @@
 NS_IMETHODIMP
 nsHttpChannel::GetSecurityInfo(nsISupports** securityInfo) {
   NS_ENSURE_ARG_POINTER(securityInfo);
-  *securityInfo = mSecurityInfo;
-  NS_IF_ADDREF(*securityInfo);
+  *securityInfo = do_AddRef(mSecurityInfo).take();
   return NS_OK;
 }
 
@@ -5862,7 +5861,7 @@
   // We save this timestamp from outside of the if block in case we enable the
   // profiler after AsyncOpen().
   mLastStatusReported = TimeStamp::Now();
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsAutoCString requestMethod;
     GetRequestMethod(requestMethod);
 
@@ -6552,11 +6551,10 @@
 NS_IMETHODIMP
 nsHttpChannel::GetProxyInfo(nsIProxyInfo** result) {
   if (!mConnectionInfo) {
-    *result = mProxyInfo;
+    *result = do_AddRef(mProxyInfo).take();
   } else {
-    *result = mConnectionInfo->ProxyInfo();
+    *result = do_AddRef(mConnectionInfo->ProxyInfo()).take();
   }
-  NS_IF_ADDREF(*result);
   return NS_OK;
 }
 
@@ -7487,7 +7485,7 @@
 
   MaybeFlushConsoleReports();
 
-  if (!mEndMarkerAdded && profiler_can_accept_markers()) {
+  if (!mEndMarkerAdded && profiler_thread_is_being_profiled()) {
     // These do allocations/frees/etc; avoid if not active
     mEndMarkerAdded = true;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/nsHttp.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/nsHttp.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/nsHttp.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/nsHttp.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -49,44 +49,8 @@
 };
 #undef HTTP_ATOM
 
-class nsCaseInsentitiveHashKey : public PLDHashEntryHdr {
- public:
-  using KeyType = const nsACString&;
-  using KeyTypePointer = const nsACString*;
-
-  explicit nsCaseInsentitiveHashKey(KeyTypePointer aStr) : mStr(*aStr) {
-    // take it easy just deal HashKey
-  }
-
-  nsCaseInsentitiveHashKey(const nsCaseInsentitiveHashKey&) = delete;
-  nsCaseInsentitiveHashKey(nsCaseInsentitiveHashKey&& aToMove) noexcept
-      : PLDHashEntryHdr(std::move(aToMove)), mStr(aToMove.mStr) {}
-  ~nsCaseInsentitiveHashKey() = default;
-
-  KeyType GetKey() const { return mStr; }
-  bool KeyEquals(const KeyTypePointer aKey) const {
-    return mStr.Equals(*aKey, nsCaseInsensitiveCStringComparator);
-  }
-
-  static KeyTypePointer KeyToPointer(KeyType aKey) { return &aKey; }
-  static PLDHashNumber HashKey(const KeyTypePointer aKey) {
-    nsAutoCString tmKey(*aKey);
-    ToLowerCase(tmKey);
-    return mozilla::HashString(tmKey);
-  }
-  enum { ALLOW_MEMMOVE = false };
-
-  // To avoid double-counting, only measure the string if it is unshared.
-  size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const {
-    return GetKey().SizeOfExcludingThisIfUnshared(aMallocSizeOf);
-  }
-
- private:
-  const nsCString mStr;
-};
-
-static StaticDataMutex<nsTHashtable<nsCaseInsentitiveHashKey>> sAtomTable(
-    "nsHttp::sAtomTable");
+static StaticDataMutex<nsTHashtable<nsCStringASCIICaseInsensitiveHashKey>>
+    sAtomTable("nsHttp::sAtomTable");
 
 // This is set to true in DestroyAtomTable so we don't try to repopulate the
 // table if ResolveAtom gets called during shutdown for some reason.
@@ -95,7 +59,8 @@
 // We put the atoms in a hash table for speedy lookup.. see ResolveAtom.
 namespace nsHttp {
 
-nsresult CreateAtomTable(nsTHashtable<nsCaseInsentitiveHashKey>& base) {
+nsresult CreateAtomTable(
+    nsTHashtable<nsCStringASCIICaseInsensitiveHashKey>& base) {
   if (sTableDestroyed) {
     return NS_ERROR_ILLEGAL_DURING_SHUTDOWN;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/NullHttpChannel.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/NullHttpChannel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/NullHttpChannel.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/NullHttpChannel.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -292,7 +292,7 @@
 
 NS_IMETHODIMP
 NullHttpChannel::GetOriginalURI(nsIURI** aOriginalURI) {
-  NS_IF_ADDREF(*aOriginalURI = mOriginalURI);
+  *aOriginalURI = do_AddRef(mOriginalURI).take();
   return NS_OK;
 }
 
@@ -304,7 +304,7 @@
 
 NS_IMETHODIMP
 NullHttpChannel::GetURI(nsIURI** aURI) {
-  NS_IF_ADDREF(*aURI = mURI);
+  *aURI = do_AddRef(mURI).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/TRRServiceChannel.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/TRRServiceChannel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/http/TRRServiceChannel.cpp	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/http/TRRServiceChannel.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -162,8 +162,7 @@
 NS_IMETHODIMP
 TRRServiceChannel::GetSecurityInfo(nsISupports** securityInfo) {
   NS_ENSURE_ARG_POINTER(securityInfo);
-  *securityInfo = mSecurityInfo;
-  NS_IF_ADDREF(*securityInfo);
+  *securityInfo = do_AddRef(mSecurityInfo).take();
   return NS_OK;
 }
 
@@ -1339,11 +1338,10 @@
 NS_IMETHODIMP
 TRRServiceChannel::GetProxyInfo(nsIProxyInfo** result) {
   if (!mConnectionInfo) {
-    *result = mProxyInfo;
+    *result = do_AddRef(mProxyInfo).take();
   } else {
-    *result = mConnectionInfo->ProxyInfo();
+    *result = do_AddRef(mConnectionInfo->ProxyInfo()).take();
   }
-  NS_IF_ADDREF(*result);
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/viewsource/nsViewSourceChannel.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/viewsource/nsViewSourceChannel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/viewsource/nsViewSourceChannel.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/viewsource/nsViewSourceChannel.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -659,8 +659,7 @@
       return isc->GetBaseURI(aBaseURI);
     }
   }
-  *aBaseURI = mBaseURI;
-  NS_IF_ADDREF(*aBaseURI);
+  *aBaseURI = do_AddRef(mBaseURI).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/websocket/BaseWebSocketChannel.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/websocket/BaseWebSocketChannel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/protocol/websocket/BaseWebSocketChannel.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/protocol/websocket/BaseWebSocketChannel.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -94,7 +94,7 @@
 BaseWebSocketChannel::GetNotificationCallbacks(
     nsIInterfaceRequestor** aNotificationCallbacks) {
   LOG(("BaseWebSocketChannel::GetNotificationCallbacks() %p\n", this));
-  NS_IF_ADDREF(*aNotificationCallbacks = mCallbacks);
+  *aNotificationCallbacks = do_AddRef(mCallbacks).take();
   return NS_OK;
 }
 
@@ -109,7 +109,7 @@
 NS_IMETHODIMP
 BaseWebSocketChannel::GetLoadGroup(nsILoadGroup** aLoadGroup) {
   LOG(("BaseWebSocketChannel::GetLoadGroup() %p\n", this));
-  NS_IF_ADDREF(*aLoadGroup = mLoadGroup);
+  *aLoadGroup = do_AddRef(mLoadGroup).take();
   return NS_OK;
 }
 
@@ -129,7 +129,7 @@
 
 NS_IMETHODIMP
 BaseWebSocketChannel::GetLoadInfo(nsILoadInfo** aLoadInfo) {
-  NS_IF_ADDREF(*aLoadInfo = mLoadInfo);
+  *aLoadInfo = do_AddRef(mLoadInfo).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/streamconv/converters/nsDirIndexParser.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/streamconv/converters/nsDirIndexParser.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/streamconv/converters/nsDirIndexParser.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/streamconv/converters/nsDirIndexParser.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -115,7 +115,7 @@
 
 NS_IMETHODIMP
 nsDirIndexParser::GetListener(nsIDirIndexListener** aListener) {
-  NS_IF_ADDREF(*aListener = mListener.get());
+  *aListener = do_AddRef(mListener).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/streamconv/converters/nsMultiMixedConv.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/streamconv/converters/nsMultiMixedConv.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/streamconv/converters/nsMultiMixedConv.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/streamconv/converters/nsMultiMixedConv.cpp	2021-10-20 19:28:33.000000000 +0000
@@ -212,9 +212,7 @@
 
 NS_IMETHODIMP
 nsPartChannel::GetLoadGroup(nsILoadGroup** aLoadGroup) {
-  *aLoadGroup = mLoadGroup;
-  NS_IF_ADDREF(*aLoadGroup);
-
+  *aLoadGroup = do_AddRef(mLoadGroup).take();
   return NS_OK;
 }
 
@@ -375,8 +373,7 @@
 nsPartChannel::GetBaseChannel(nsIChannel** aReturn) {
   NS_ENSURE_ARG_POINTER(aReturn);
 
-  *aReturn = mMultipartChannel;
-  NS_IF_ADDREF(*aReturn);
+  *aReturn = do_AddRef(mMultipartChannel).take();
   return NS_OK;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/browser/auth_post.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/browser/auth_post.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/browser/auth_post.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/browser/auth_post.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,7 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function readStream(inputStream) {
   let available = 0;
@@ -10,11 +12,10 @@
     result.push(inputStream.readBytes(available));
   }
 
-  return result.join('');
+  return result.join("");
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (request.method != "POST") {
     response.setStatusLine(request.httpVersion, 405, "Method Not Allowed");
     return;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/browser/browser_fetch_lnk.js firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/browser/browser_fetch_lnk.js
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/browser/browser_fetch_lnk.js	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/browser/browser_fetch_lnk.js	2021-10-20 19:28:34.000000000 +0000
@@ -4,10 +4,6 @@
 "use strict";
 
 add_task(async () => {
-  await SpecialPowers.pushPrefEnv({
-    set: [["privacy.file_unique_origin", false]],
-  });
-
   const FILE_PAGE = Services.io.newFileURI(
     new FileUtils.File(getTestFilePath("dummy.html"))
   ).spec;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/browser/redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/browser/redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/browser/redirect.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/browser/redirect.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
   let location = request.queryString;
   response.setHeader("Location", location, false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/cgi.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/cgi.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/cgi.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/cgi.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,7 +1,7 @@
-function handleRequest(request, response)
-{
-  if (request.queryString == "throw")
+function handleRequest(request, response) {
+  if (request.queryString == "throw") {
     throw "monkey wrench!";
+  }
 
   response.setHeader("Content-Type", "text/plain", false);
   response.write("PASS");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/object-state.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/object-state.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/object-state.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/object-state.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,13 +1,12 @@
-function parseQueryString(str)
-{
+function parseQueryString(str) {
   var paramArray = str.split("&");
   var regex = /^([^=]+)=(.*)$/;
   var params = {};
-  for (var i = 0, sz = paramArray.length; i < sz; i++)
-  {
+  for (var i = 0, sz = paramArray.length; i < sz; i++) {
     var match = regex.exec(paramArray[i]);
-    if (!match)
+    if (!match) {
       throw "Bad parameter in queryString!  '" + paramArray[i] + "'";
+    }
     params[decodeURIComponent(match[1])] = decodeURIComponent(match[2]);
   }
 
@@ -22,10 +21,9 @@
  * best of my knowledge there's no way to force data flow at all those levels,
  * so this is the best we can do.
  */
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
-  
+
   /*
    * NB: A Content-Type header is *necessary* to avoid content-sniffing, which
    *     will delay onStartRequest past the the point where the entire head of
@@ -35,31 +33,21 @@
 
   var params = parseQueryString(request.queryString);
 
-  switch (params.state)
-  {
+  switch (params.state) {
     case "initial":
       response.processAsync();
       response.write("do");
-      var state =
-        {
-          QueryInterface: function(iid)
-          {
-            if (iid.equals(Components.interfaces.nsISupports))
-              return this;
-            throw Components.results.NS_ERROR_NO_INTERFACE;
-          },
-          end: function()
-          {
-            response.write("ne");
-            response.finish();
-          }
-        };
+      var state = {
+        QueryInterface: ChromeUtils.generateQI([]),
+        end() {
+          response.write("ne");
+          response.finish();
+        },
+      };
       state.wrappedJSObject = state;
       setObjectState("object-state-test", state);
-      getObjectState("object-state-test", function(obj)
-      {
-        if (obj !== state)
-        {
+      getObjectState("object-state-test", function(obj) {
+        if (obj !== state) {
           response.write("FAIL bad state save");
           response.finish();
         }
@@ -72,8 +60,7 @@
 
     case "trigger":
       response.write("trigger");
-      getObjectState("object-state-test", function(obj)
-      {
+      getObjectState("object-state-test", function(obj) {
         obj.wrappedJSObject.end();
         setObjectState("object-state-test", null);
       });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/qi.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/qi.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/qi.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/qi.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,43 +1,40 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var exstr, qid;
 
   response.setStatusLine(request.httpVersion, 500, "FAIL");
 
   var passed = false;
-  try
-  {
+  try {
     qid = request.QueryInterface(Ci.nsIHttpRequest);
     passed = qid === request;
-  }
-  catch (e)
-  {
+  } catch (e) {
     exstr = ("" + e).split(/[\x09\x20-\x7f\x81-\xff]+/)[0];
-    response.setStatusLine(request.httpVersion, 500,
-                           "request doesn't QI: " + exstr);
+    response.setStatusLine(
+      request.httpVersion,
+      500,
+      "request doesn't QI: " + exstr
+    );
     return;
   }
-  if (!passed)
-  {
+  if (!passed) {
     response.setStatusLine(request.httpVersion, 500, "request QI'd wrongly?");
     return;
   }
 
   passed = false;
-  try
-  {
+  try {
     qid = response.QueryInterface(Ci.nsIHttpResponse);
     passed = qid === response;
-  }
-  catch (e)
-  {
+  } catch (e) {
     exstr = ("" + e).split(/[\x09\x20-\x7f\x81-\xff]+/)[0];
-    response.setStatusLine(request.httpVersion, 500,
-                           "response doesn't QI: " + exstr);
+    response.setStatusLine(
+      request.httpVersion,
+      500,
+      "response doesn't QI: " + exstr
+    );
     return;
   }
-  if (!passed)
-  {
+  if (!passed) {
     response.setStatusLine(request.httpVersion, 500, "response QI'd wrongly?");
     return;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/range-checker.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/range-checker.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/range-checker.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/range-checker.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,3 +1 @@
-function handleRequest(request, response)
-{
-}
+function handleRequest(request, response) {}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/state1.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/state1.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/state1.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/state1.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,21 +1,19 @@
-function parseQueryString(str)
-{
+function parseQueryString(str) {
   var paramArray = str.split("&");
   var regex = /^([^=]+)=(.*)$/;
   var params = {};
-  for (var i = 0, sz = paramArray.length; i < sz; i++)
-  {
+  for (var i = 0, sz = paramArray.length; i < sz; i++) {
     var match = regex.exec(paramArray[i]);
-    if (!match)
+    if (!match) {
       throw "Bad parameter in queryString!  '" + paramArray[i] + "'";
+    }
     params[decodeURIComponent(match[1])] = decodeURIComponent(match[2]);
   }
 
   return params;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
 
   var params = parseQueryString(request.queryString);
@@ -24,8 +22,7 @@
   response.setHeader("X-Old-Shared-Value", oldShared, false);
 
   var newShared = params.newShared;
-  if (newShared !== undefined)
-  {
+  if (newShared !== undefined) {
     setSharedState("shared-value", newShared);
     response.setHeader("X-New-Shared-Value", newShared, false);
   }
@@ -34,8 +31,7 @@
   response.setHeader("X-Old-Private-Value", oldPrivate, false);
 
   var newPrivate = params.newPrivate;
-  if (newPrivate !== undefined)
-  {
+  if (newPrivate !== undefined) {
     setState("private-value", newPrivate);
     response.setHeader("X-New-Private-Value", newPrivate, false);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/state2.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/state2.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/state2.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/state2.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,21 +1,19 @@
-function parseQueryString(str)
-{
+function parseQueryString(str) {
   var paramArray = str.split("&");
   var regex = /^([^=]+)=(.*)$/;
   var params = {};
-  for (var i = 0, sz = paramArray.length; i < sz; i++)
-  {
+  for (var i = 0, sz = paramArray.length; i < sz; i++) {
     var match = regex.exec(paramArray[i]);
-    if (!match)
+    if (!match) {
       throw "Bad parameter in queryString!  '" + paramArray[i] + "'";
+    }
     params[decodeURIComponent(match[1])] = decodeURIComponent(match[2]);
   }
 
   return params;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
 
   var params = parseQueryString(request.queryString);
@@ -24,8 +22,7 @@
   response.setHeader("X-Old-Shared-Value", oldShared, false);
 
   var newShared = params.newShared;
-  if (newShared !== undefined)
-  {
+  if (newShared !== undefined) {
     setSharedState("shared-value", newShared);
     response.setHeader("X-New-Shared-Value", newShared, false);
   }
@@ -34,8 +31,7 @@
   response.setHeader("X-Old-Private-Value", oldPrivate, false);
 
   var newPrivate = params.newPrivate;
-  if (newPrivate !== undefined)
-  {
+  if (newPrivate !== undefined) {
     setState("private-value", newPrivate);
     response.setHeader("X-New-Private-Value", newPrivate, false);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/thrower.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/thrower.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/httpserver/test/data/sjs/thrower.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/httpserver/test/data/sjs/thrower.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,6 +1,6 @@
-function handleRequest(request, response)
-{
-  if (request.queryString == "throw")
+function handleRequest(request, response) {
+  if (request.queryString == "throw") {
     undefined[5];
+  }
   response.setHeader("X-Test-Status", "PASS", false);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/file_1502055.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/file_1502055.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/file_1502055.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/file_1502055.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,18 +1,17 @@
-function handleRequest(request, response)
-{
-  var count = parseInt(getState('count'));
+function handleRequest(request, response) {
+  var count = parseInt(getState("count"));
   if (!count) {
     count = 0;
   }
 
   if (count == 0) {
-    response.setStatusLine(request.httpVersion, '200', 'OK');
-    response.setHeader('Content-Type', 'text/html', false);
-    response.write('<html><body>Hello world!</body></html>');
-    setState('count', '1');
+    response.setStatusLine(request.httpVersion, "200", "OK");
+    response.setHeader("Content-Type", "text/html", false);
+    response.write("<html><body>Hello world!</body></html>");
+    setState("count", "1");
     return;
   }
 
   response.setStatusLine(request.httpVersion, "304", "Not Modified");
-  response.setHeader('Clear-Site-Data', '"storage"');
+  response.setHeader("Clear-Site-Data", '"storage"');
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/file_1503201.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/file_1503201.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/file_1503201.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/file_1503201.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,4 +1,4 @@
 function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 401, "Unauthorized");
-  response.setHeader("WWW-Authenticate", "Bearer realm=\"foo\"");
+  response.setHeader("WWW-Authenticate", 'Bearer realm="foo"');
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/file_loadinfo_redirectchain.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/file_loadinfo_redirectchain.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/file_loadinfo_redirectchain.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/file_loadinfo_redirectchain.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -4,8 +4,8 @@
  */
 
 function createIframeContent(aQuery) {
-
-  var content =`
+  var content =
+    `
   <!DOCTYPE HTML>
   <html>
   <head><meta charset="utf-8">
@@ -14,7 +14,9 @@
   <body>
   <script type="text/javascript">
     var myXHR = new XMLHttpRequest();
-    myXHR.open("GET", "http://example.com/tests/netwerk/test/mochitests/file_loadinfo_redirectchain.sjs?` + aQuery + `");
+    myXHR.open("GET", "http://example.com/tests/netwerk/test/mochitests/file_loadinfo_redirectchain.sjs?` +
+    aQuery +
+    `");
     myXHR.onload = function() {
     var loadinfo = SpecialPowers.wrap(myXHR).channel.loadInfo;
     var redirectChain = loadinfo.redirectChain;
@@ -42,25 +44,29 @@
   return content;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   var queryString = request.queryString;
 
-  if (queryString == "iframe-redir-https-2" ||
-      queryString == "iframe-redir-err-2") {
+  if (
+    queryString == "iframe-redir-https-2" ||
+    queryString == "iframe-redir-err-2"
+  ) {
     var query = queryString.replace("iframe-", "");
     // send upgrade-insecure-requests CSP header
     response.setHeader("Content-Type", "text/html", false);
-    response.setHeader("Content-Security-Policy", "upgrade-insecure-requests", false);
+    response.setHeader(
+      "Content-Security-Policy",
+      "upgrade-insecure-requests",
+      false
+    );
     response.write(createIframeContent(query));
     return;
   }
 
   // at the end of the redirectchain we return some text
   // for sanity checking
-  if (queryString == "redir-0" ||
-      queryString == "redir-https-0") {
+  if (queryString == "redir-0" || queryString == "redir-https-0") {
     response.setHeader("Content-Type", "text/html", false);
     response.write("checking redirectchain");
     return;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/method.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/method.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/method.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/method.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,12 +1,9 @@
+function handleRequest(request, response) {
+  // avoid confusing cache behaviors
+  response.setHeader("Cache-Control", "no-cache", false);
+  response.setHeader("Content-Type", "text/plain", false);
+  response.setHeader("Access-Control-Allow-Origin", "*", false);
 
-function handleRequest(request, response)
-{
-    // avoid confusing cache behaviors
-    response.setHeader("Cache-Control", "no-cache", false);
-    response.setHeader("Content-Type", "text/plain", false);
-    response.setHeader("Access-Control-Allow-Origin", "*", false);
-
-    // echo method
-    response.write(request.method);
+  // echo method
+  response.write(request.method);
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/origin_header.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/origin_header.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/origin_header.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/origin_header.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -2,9 +2,9 @@
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 function handleRequest(request, response) {
-    response.setHeader("Content-Type", "text/plain", false);
-    response.setHeader("Cache-Control", "no-cache", false);
+  response.setHeader("Content-Type", "text/plain", false);
+  response.setHeader("Cache-Control", "no-cache", false);
 
-    var origin = request.hasHeader("Origin") ? request.getHeader("Origin") : "";
-    response.write("Origin: " + origin);
+  var origin = request.hasHeader("Origin") ? request.getHeader("Origin") : "";
+  response.write("Origin: " + origin);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/partial_content.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/partial_content.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/partial_content.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/partial_content.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -6,8 +6,7 @@
 
 /* Debug and Error wrapper functions for dump().
  */
-function ERR(response, responseCode, responseCodeStr, msg)
-{
+function ERR(response, responseCode, responseCodeStr, msg) {
   // Reset state var.
   setState("expectedRequestType", "");
   // Dump to console log and send to client in response.
@@ -19,8 +18,7 @@
   response.write(msg);
 }
 
-function DBG(msg)
-{
+function DBG(msg) {
   // Dump to console only.
   dump("SERVER DEBUG: " + msg + "\n");
 }
@@ -35,8 +33,7 @@
  * Second call will require Range and If-Range in the request headers, and
  * will respond with the range requested.
  */
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   DBG("Trying to seize power");
   response.seizePower();
 
@@ -50,7 +47,7 @@
     // Set state var for second request.
     setState("expectedRequestType", "partialRequest");
     // Create lastModified variable for responses.
-    lastModified = (new Date()).toUTCString();
+    lastModified = new Date().toUTCString();
     setState("lastModified", lastModified);
   } else if (getState("expectedRequestType") === "partialRequest") {
     DBG("Second call: Should be requesting undelivered content.");
@@ -60,52 +57,80 @@
     // Get last modified date and reset state var.
     lastModified = getState("lastModified");
   } else {
-    ERR(response, 500, "Internal Server Error",
-        "Invalid expectedRequestType \"" + expectedRequestType + "\"in " +
-        "server state db.");
+    ERR(
+      response,
+      500,
+      "Internal Server Error",
+      'Invalid expectedRequestType "' +
+        expectedRequestType +
+        '"in ' +
+        "server state db."
+    );
     return;
   }
 
   // Look for Range and If-Range
   var range = request.hasHeader("Range") ? request.getHeader("Range") : "";
-  var ifRange = request.hasHeader("If-Range") ? request.getHeader("If-Range") : "";
+  var ifRange = request.hasHeader("If-Range")
+    ? request.getHeader("If-Range")
+    : "";
 
   if (expectedRequestType === "fullRequest") {
     // Should not have Range or If-Range in first request.
     if (range && range.length > 0) {
-      ERR(response, 400, "Bad Request",
-          "Should not receive \"Range: " + range + "\" for first, full request.");
+      ERR(
+        response,
+        400,
+        "Bad Request",
+        'Should not receive "Range: ' + range + '" for first, full request.'
+      );
       return;
     }
     if (ifRange && ifRange.length > 0) {
-      ERR(response, 400, "Bad Request",
-          "Should not receive \"Range: " + range + "\" for first, full request.");
+      ERR(
+        response,
+        400,
+        "Bad Request",
+        'Should not receive "Range: ' + range + '" for first, full request.'
+      );
       return;
     }
   } else if (expectedRequestType === "partialRequest") {
     // Range AND If-Range should both be present in second request.
     if (!range) {
-      ERR(response, 400, "Bad Request",
-          "Should receive \"Range: \" for second, partial request.");
+      ERR(
+        response,
+        400,
+        "Bad Request",
+        'Should receive "Range: " for second, partial request.'
+      );
       return;
     }
     if (!ifRange) {
-      ERR(response, 400, "Bad Request",
-          "Should receive \"If-Range: \" for second, partial request.");
+      ERR(
+        response,
+        400,
+        "Bad Request",
+        'Should receive "If-Range: " for second, partial request.'
+      );
       return;
     }
   } else {
     // Somewhat redundant, but a check for errors in this test code.
-    ERR(response, 500, "Internal Server Error",
-        "expectedRequestType not set correctly: \"" + expectedRequestType + "\"");
+    ERR(
+      response,
+      500,
+      "Internal Server Error",
+      'expectedRequestType not set correctly: "' + expectedRequestType + '"'
+    );
     return;
   }
 
   // Prepare content in two parts for responses.
-  var partialContent = "<html><head></head><body><p id=\"firstResponse\">" +
-                       "First response</p>";
-  var remainderContent = "<p id=\"secondResponse\">Second response</p>" +
-                         "</body></html>";
+  var partialContent =
+    '<html><head></head><body><p id="firstResponse">' + "First response</p>";
+  var remainderContent =
+    '<p id="secondResponse">Second response</p>' + "</body></html>";
   var totalLength = partialContent.length + remainderContent.length;
 
   DBG("totalLength: " + totalLength);
@@ -113,12 +138,16 @@
   // Prepare common headers for the two responses.
   date = new Date();
   DBG("Date: " + date.toUTCString() + ", Last-Modified: " + lastModified);
-  var commonHeaders = "Date: " + date.toUTCString() + "\r\n" +
-                      "Last-Modified: " + lastModified + "\r\n" +
-                      "Content-Type: text/html; charset=UTF-8\r\n" +
-                      "ETag: abcd0123\r\n" +
-                      "Accept-Ranges: bytes\r\n";
-
+  var commonHeaders =
+    "Date: " +
+    date.toUTCString() +
+    "\r\n" +
+    "Last-Modified: " +
+    lastModified +
+    "\r\n" +
+    "Content-Type: text/html; charset=UTF-8\r\n" +
+    "ETag: abcd0123\r\n" +
+    "Accept-Ranges: bytes\r\n";
 
   // Prepare specific headers and content for first and second responses.
   if (expectedRequestType === "fullRequest") {
@@ -135,15 +164,28 @@
     response.write(commonHeaders);
     // Set Content-Length to length of bytes transmitted.
     response.write("Content-Length: " + remainderContent.length + "\r\n");
-    response.write("Content-Range: bytes " + partialContent.length + "-" +
-                   (totalLength - 1) + "/" + totalLength + "\r\n");
+    response.write(
+      "Content-Range: bytes " +
+        partialContent.length +
+        "-" +
+        (totalLength - 1) +
+        "/" +
+        totalLength +
+        "\r\n"
+    );
     response.write("\r\n");
     response.write(remainderContent);
   } else {
     // Somewhat redundant, but a check for errors in this test code.
-    ERR(response, 500, "Internal Server Error",
-       "Something very bad happened here: expectedRequestType is invalid " +
-       "towards the end of handleRequest! - \"" + expectedRequestType + "\"");
+    ERR(
+      response,
+      500,
+      "Internal Server Error",
+      "Something very bad happened here: expectedRequestType is invalid " +
+        'towards the end of handleRequest! - "' +
+        expectedRequestType +
+        '"'
+    );
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/rel_preconnect.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/rel_preconnect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/rel_preconnect.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/rel_preconnect.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,15 +1,17 @@
 // Generate response header "Link: <HREF>; rel=preconnect"
 // HREF is provided by the request header X-Link
 
-function handleRequest(request, response)
-{
-    response.setHeader("Cache-Control", "no-cache", false);
-    response.setHeader("Link", "<" + 
-                       request.queryString +
-                       ">; rel=preconnect" + ", " +
-                        "<" + 
-                       request.queryString +
-                       ">; rel=preconnect; crossOrigin=anonymous");
-    response.write("check that header");
+function handleRequest(request, response) {
+  response.setHeader("Cache-Control", "no-cache", false);
+  response.setHeader(
+    "Link",
+    "<" +
+      request.queryString +
+      ">; rel=preconnect" +
+      ", " +
+      "<" +
+      request.queryString +
+      ">; rel=preconnect; crossOrigin=anonymous"
+  );
+  response.write("check that header");
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/reset_cookie_xhr.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/reset_cookie_xhr.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/reset_cookie_xhr.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/reset_cookie_xhr.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,13 +1,15 @@
-
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var queryString = request.queryString;
   switch (queryString) {
     case "set_cookie":
       response.setHeader("Set-Cookie", "testXHR1=xhr_val1; path=/", false);
-    break;
+      break;
     case "modify_cookie":
-      response.setHeader("Set-Cookie", "testXHR1=xhr_val2; path=/; HttpOnly", false);
-    break;
+      response.setHeader(
+        "Set-Cookie",
+        "testXHR1=xhr_val2; path=/; HttpOnly",
+        false
+      );
+      break;
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/set_cookie_xhr.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/set_cookie_xhr.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/set_cookie_xhr.sjs	2021-10-17 14:42:48.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/set_cookie_xhr.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,13 +1,15 @@
-
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var queryString = request.queryString;
   switch (queryString) {
     case "xhr1":
       response.setHeader("Set-Cookie", "xhr1=xhr_val1; path=/", false);
-    break;
+      break;
     case "xhr2":
-      response.setHeader("Set-Cookie", "xhr2=xhr_val2; path=/; HttpOnly", false);
-    break;
+      response.setHeader(
+        "Set-Cookie",
+        "xhr2=xhr_val2; path=/; HttpOnly",
+        false
+      );
+      break;
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/signed_web_packaged_app.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/signed_web_packaged_app.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/signed_web_packaged_app.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/signed_web_packaged_app.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "application/package", false);
   response.write(signedPackage);
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/subResources.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/subResources.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/subResources.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/subResources.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,12 +1,23 @@
 const kTwoDays = 2 * 24 * 60 * 60;
-const kInTwoDays = (new Date().getTime() + kTwoDays * 1000);
+const kInTwoDays = new Date().getTime() + kTwoDays * 1000;
 
-function getDateInTwoDays()
-{
+function getDateInTwoDays() {
   let date2 = new Date(kInTwoDays);
   let days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
-  let months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct",
-                "Nov", "Dec"];
+  let months = [
+    "Jan",
+    "Feb",
+    "Mar",
+    "Apr",
+    "May",
+    "Jun",
+    "Jul",
+    "Aug",
+    "Sep",
+    "Oct",
+    "Nov",
+    "Dec",
+  ];
   let day = date2.getUTCDate();
   if (day < 10) {
     day = "0" + day;
@@ -25,8 +36,22 @@
   if (second < 10) {
     second = "0" + second;
   }
-  return days[date2.getUTCDay()] + ", " + day + "-" + month + "-" +
-         year + " " + hour + ":" + minute + ":" + second + " GMT";
+  return (
+    days[date2.getUTCDay()] +
+    ", " +
+    day +
+    "-" +
+    month +
+    "-" +
+    year +
+    " " +
+    hour +
+    ":" +
+    minute +
+    ":" +
+    second +
+    " GMT"
+  );
 }
 
 function handleRequest(aRequest, aResponse) {
@@ -35,11 +60,17 @@
   let suffix = " path=/; domain:.mochi.test";
 
   if (aRequest.queryString.includes("3")) {
-    aResponse.setHeader("Set-Cookie", "test3=value3; expires=Fri, 02-Jan-2037 00:00:01 GMT;" + suffix);
+    aResponse.setHeader(
+      "Set-Cookie",
+      "test3=value3; expires=Fri, 02-Jan-2037 00:00:01 GMT;" + suffix
+    );
   } else if (aRequest.queryString.includes("4")) {
     let date2 = getDateInTwoDays();
 
-    aResponse.setHeader("Set-Cookie", "test4=value4; expires=" + date2 + ";" + suffix);
+    aResponse.setHeader(
+      "Set-Cookie",
+      "test4=value4; expires=" + date2 + ";" + suffix
+    );
   }
 
   aResponse.setHeader("Content-Type", "text/javascript", false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/test_accept_header.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/test_accept_header.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/test_accept_header.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/test_accept_header.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -6,20 +6,28 @@
     response.setHeader("Content-Type", "text/javascript", false);
     response.write("postMessage(42)");
 
-    setState("data", JSON.stringify({type: "worker", accept: request.getHeader("Accept") }));
+    setState(
+      "data",
+      JSON.stringify({ type: "worker", accept: request.getHeader("Accept") })
+    );
     return;
   }
 
   if (request.queryString == "image") {
     // A 1x1 PNG image.
     // Source: https://commons.wikimedia.org/wiki/File:1x1.png (Public Domain)
-    const IMAGE = atob("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
-                       "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=");
+    const IMAGE = atob(
+      "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
+        "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII="
+    );
 
     response.setHeader("Content-Type", "image/png", false);
     response.write(IMAGE);
 
-    setState("data", JSON.stringify({type: "image", accept: request.getHeader("Accept") }));
+    setState(
+      "data",
+      JSON.stringify({ type: "image", accept: request.getHeader("Accept") })
+    );
     return;
   }
 
@@ -27,7 +35,10 @@
     response.setHeader("Content-Type", "text/css", false);
     response.write("");
 
-    setState("data", JSON.stringify({type: "style", accept: request.getHeader("Accept") }));
+    setState(
+      "data",
+      JSON.stringify({ type: "style", accept: request.getHeader("Accept") })
+    );
     return;
   }
 
@@ -35,7 +46,10 @@
     response.setHeader("Content-Type", "text/html", false);
     response.write("<h1>Hello world!</h1>");
 
-    setState("data", JSON.stringify({type: "iframe", accept: request.getHeader("Accept") }));
+    setState(
+      "data",
+      JSON.stringify({ type: "iframe", accept: request.getHeader("Accept") })
+    );
     return;
   }
 
@@ -44,6 +58,5 @@
     response.write(getState("data"));
 
     setState("data", "");
-    return;
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/web_packaged_app.sjs firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/web_packaged_app.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/test/mochitests/web_packaged_app.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/test/mochitests/web_packaged_app.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,20 +1,37 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "application/package", false);
   response.write(octetStreamData.getData());
-  return;
 }
 
 // The package content
 // getData formats it as described at http://www.w3.org/TR/web-packaging/#streamable-package-format
 var octetStreamData = {
   content: [
-   { headers: ["Content-Location: /index.html", "Content-Type: text/html"], data: "<html>\r\n  <head>\r\n    <script> alert('OK: hello'); alert('DONE'); </script>\r\n</head>\r\n  Web Packaged App Index\r\n</html>\r\n", type: "text/html" },
-   { headers: ["Content-Location: /scripts/app.js", "Content-Type: text/javascript"], data: "module Math from '/scripts/helpers/math.js';\r\n...\r\n", type: "text/javascript" },
-   { headers: ["Content-Location: /scripts/helpers/math.js", "Content-Type: text/javascript"], data: "export function sum(nums) { ... }\r\n...\r\n", type: "text/javascript" }
+    {
+      headers: ["Content-Location: /index.html", "Content-Type: text/html"],
+      data:
+        "<html>\r\n  <head>\r\n    <script> alert('OK: hello'); alert('DONE'); </script>\r\n</head>\r\n  Web Packaged App Index\r\n</html>\r\n",
+      type: "text/html",
+    },
+    {
+      headers: [
+        "Content-Location: /scripts/app.js",
+        "Content-Type: text/javascript",
+      ],
+      data: "module Math from '/scripts/helpers/math.js';\r\n...\r\n",
+      type: "text/javascript",
+    },
+    {
+      headers: [
+        "Content-Location: /scripts/helpers/math.js",
+        "Content-Type: text/javascript",
+      ],
+      data: "export function sum(nums) { ... }\r\n...\r\n",
+      type: "text/javascript",
+    },
   ],
-  token : "gc0pJq0M:08jU534c0p",
-  getData: function() {
+  token: "gc0pJq0M:08jU534c0p",
+  getData() {
     var str = "";
     for (var i in this.content) {
       str += "--" + this.token + "\r\n";
@@ -27,5 +44,5 @@
 
     str += "--" + this.token + "--";
     return str;
-  }
-}
+  },
+};
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/netwerk/url-classifier/AsyncUrlChannelClassifier.cpp firefox-trunk-95.0~a1~hg20211020r596404/netwerk/url-classifier/AsyncUrlChannelClassifier.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/netwerk/url-classifier/AsyncUrlChannelClassifier.cpp	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/netwerk/url-classifier/AsyncUrlChannelClassifier.cpp	2021-10-20 19:28:34.000000000 +0000
@@ -76,7 +76,7 @@
 
  private:
   URIData();
-  ~URIData();
+  ~URIData() = default;
 
   nsCOMPtr<nsIURI> mURI;
   nsCString mURISpec;
@@ -117,8 +117,6 @@
 
 URIData::URIData() { MOZ_ASSERT(NS_IsMainThread()); }
 
-URIData::~URIData() { NS_ReleaseOnMainThread("URIData:mURI", mURI.forget()); }
-
 bool URIData::IsEqual(nsIURI* aURI) const {
   MOZ_ASSERT(NS_IsMainThread());
   MOZ_ASSERT(aURI);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/dir_bug534293/file_bug534293.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/dir_bug534293/file_bug534293.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/dir_bug534293/file_bug534293.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/dir_bug534293/file_bug534293.sjs	2021-10-20 19:28:35.000000000 +0000
@@ -1,11 +1,10 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/javascript", false);
   if (request.queryString.indexOf("report") != -1) {
     if (getState("loaded") == "loaded") {
-      response.write("ok(true, 'This script was supposed to get fetched.');");      
+      response.write("ok(true, 'This script was supposed to get fetched.');");
     } else {
-      response.write("ok(false, 'This script was supposed to get fetched.');");      
+      response.write("ok(false, 'This script was supposed to get fetched.');");
     }
   } else {
     setState("loaded", "loaded");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_async_bug1104732.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_async_bug1104732.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_async_bug1104732.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_async_bug1104732.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,14 +1,19 @@
 var timer = null;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.processAsync();
   response.setHeader("Content-Type", "application/javascript", false);
   response.write("asyncState = 'mid-async';\n");
 
-  timer = Components.classes["@mozilla.org/timer;1"].createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function() {
-    response.write("asyncState = 'loaded';\n");
-    response.finish();
-  }, 5 * 1000 /* milliseconds */, timer.TYPE_ONE_SHOT);
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
+      response.write("asyncState = 'loaded';\n");
+      response.finish();
+    },
+    5 * 1000 /* milliseconds */,
+    timer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug102699.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug102699.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug102699.sjs	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug102699.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,15 +1,19 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/javascript", false);
   if (request.queryString.indexOf("report") != -1) {
     if (getState("loaded") == "loaded") {
-      response.write("ok(false, 'This script was not supposed to get fetched.'); continueAfterReport();");
+      response.write(
+        "ok(false, 'This script was not supposed to get fetched.'); continueAfterReport();"
+      );
     } else {
-      response.write("ok(true, 'This script was not supposed to get fetched.'); continueAfterReport();");      
+      response.write(
+        "ok(true, 'This script was not supposed to get fetched.'); continueAfterReport();"
+      );
     }
   } else {
     setState("loaded", "loaded");
-    response.write('document.documentElement.setAttribute("data-fail", "FAIL");');
+    response.write(
+      'document.documentElement.setAttribute("data-fail", "FAIL");'
+    );
   }
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug534293.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug534293.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug534293.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug534293.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,11 +1,14 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/javascript", false);
   if (request.queryString.indexOf("report") != -1) {
     if (getState("loaded") == "loaded") {
-      response.write("ok(false, 'This script was not supposed to get fetched.');");      
+      response.write(
+        "ok(false, 'This script was not supposed to get fetched.');"
+      );
     } else {
-      response.write("ok(true, 'This script was not supposed to get fetched.');");      
+      response.write(
+        "ok(true, 'This script was not supposed to get fetched.');"
+      );
     }
   } else {
     setState("loaded", "loaded");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug534293-slow.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug534293-slow.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug534293-slow.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug534293-slow.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,14 +1,18 @@
 var timer;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/javascript", false);
   response.write("ok(true, 'Slow script ran.');");
   response.processAsync();
-  timer = Components.classes["@mozilla.org/timer;1"]
-    .createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function() {
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
       response.finish();
-    }, 500, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+    },
+    500,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug543062.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug543062.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug543062.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug543062.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,20 +1,29 @@
 var timer;
 
 function armTimer(response) {
-  timer = Components.classes["@mozilla.org/timer;1"]
-    .createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function() {
-      if (getState("docwritepreloadssecond") == "second" && getState("docwritepreloadsthird") == "third") {
-        response.write("ok(true, 'Second and third scripts should have started loading while the first one is loading');");
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
+      if (
+        getState("docwritepreloadssecond") == "second" &&
+        getState("docwritepreloadsthird") == "third"
+      ) {
+        response.write(
+          "ok(true, 'Second and third scripts should have started loading while the first one is loading');"
+        );
         response.finish();
       } else {
         armTimer(response);
       }
-    }, 20, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+    },
+    20,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/javascript", false);
   if (request.queryString.indexOf("first") != -1) {
@@ -29,4 +38,3 @@
     setState("docwritepreloadsthird", "third");
   }
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug568470-script.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug568470-script.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug568470-script.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug568470-script.sjs	2021-10-20 19:28:35.000000000 +0000
@@ -1,16 +1,19 @@
 var timer = null; // Declare outside to prevent premature GC
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/javascript", false);
   response.write("var i = 0;");
   response.bodyOutputStream.flush();
   response.processAsync();
-  timer = Components.classes["@mozilla.org/timer;1"]
-    .createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function() {
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
       response.finish();
-    }, 500, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+    },
+    500,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug568470.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug568470.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug568470.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug568470.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,21 +1,24 @@
 var timer; // Place timer in global scope to avoid it getting GC'ed prematurely
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setHeader("Cache-Control", "no-cache", false);
   response.setHeader("Content-Type", "text/html", false);
   response.write("<script src='file_bug568470-script.sjs'></script>");
   response.write("<div id='flushable'>");
-  for (var i = 0; i < 2000; i++) { 
+  for (var i = 0; i < 2000; i++) {
     response.write("Lorem ipsum dolor sit amet. ");
   }
   response.write("</div>");
   response.bodyOutputStream.flush();
   response.processAsync();
-  timer = Components.classes["@mozilla.org/timer;1"]
-    .createInstance(Components.interfaces.nsITimer);
-  timer.initWithCallback(function() {
+  timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+    Components.interfaces.nsITimer
+  );
+  timer.initWithCallback(
+    function() {
       response.finish();
-    }, 1200, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+    },
+    1200,
+    Components.interfaces.nsITimer.TYPE_ONE_SHOT
+  );
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug642908.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug642908.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug642908.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug642908.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,16 +1,19 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (request.queryString.indexOf("report") != -1) {
     response.setHeader("Content-Type", "text/javascript", false);
     if (getState("loaded") == "loaded") {
-      response.write("ok(false, 'There was an attempt to preload the image.');");      
+      response.write(
+        "ok(false, 'There was an attempt to preload the image.');"
+      );
     } else {
-      response.write("ok(true, 'There was no attempt to preload the image.');");      
+      response.write("ok(true, 'There was no attempt to preload the image.');");
     }
     response.write("SimpleTest.finish();");
   } else {
     setState("loaded", "loaded");
     response.setHeader("Content-Type", "image/svg", false);
-    response.write("<svg xmlns='http://www.w3.org/2000/svg'>Not supposed to load this</svg>");
+    response.write(
+      "<svg xmlns='http://www.w3.org/2000/svg'>Not supposed to load this</svg>"
+    );
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug655682.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug655682.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_bug655682.sjs	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_bug655682.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,8 +1,7 @@
 var timer;
 var callback;
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (request.queryString.indexOf("trigger") != -1) {
     setState("triggered", "triggered");
     response.setHeader("Cache-Control", "no-cache", false);
@@ -17,21 +16,26 @@
     response.setHeader("Content-Type", "text/html; charset=utf-8", false);
     response.write("<table><tr><td>A</td>     ");
     response.bodyOutputStream.flush();
-    timer = Components.classes["@mozilla.org/timer;1"]
-      .createInstance(Components.interfaces.nsITimer);
+    timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+      Components.interfaces.nsITimer
+    );
 
     callback = function() {
       if (getState("triggered") == "triggered") {
         response.write("<td>B</td></tr></table>");
         response.finish();
       } else {
-        timer.initWithCallback(callback,
-                               10,
-                               Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+        timer.initWithCallback(
+          callback,
+          10,
+          Components.interfaces.nsITimer.TYPE_ONE_SHOT
+        );
       }
-    }
-    timer.initWithCallback(callback,
-                           10,
-                           Components.interfaces.nsITimer.TYPE_ONE_SHOT);
-    }
+    };
+    timer.initWithCallback(
+      callback,
+      10,
+      Components.interfaces.nsITimer.TYPE_ONE_SHOT
+    );
+  }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_img_picture_preload.sjs firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_img_picture_preload.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/parser/htmlparser/tests/mochitest/file_img_picture_preload.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/parser/htmlparser/tests/mochitest/file_img_picture_preload.sjs	2021-10-20 19:28:35.000000000 +0000
@@ -1,8 +1,7 @@
 // Return a PNG, saving an array of query strings we see as state. When query
 // string is 'status', return array as JSON
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var seenImages = getState("seenImages");
   seenImages = seenImages ? JSON.parse(seenImages) : [];
 
@@ -20,7 +19,7 @@
     // Return an image
     response.setStatusLine("1.1", 302, "Found");
     response.setHeader("Location", "blue.png", false);
-    dump(request.queryString + '\n');
+    dump(request.queryString + "\n");
     seenImages.push(request.queryString);
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/python/mach/mach/sentry.py firefox-trunk-95.0~a1~hg20211020r596404/python/mach/mach/sentry.py
--- firefox-trunk-95.0~a1~hg20211017r596111/python/mach/mach/sentry.py	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/python/mach/mach/sentry.py	2021-10-20 19:28:33.000000000 +0000
@@ -54,7 +54,9 @@
 
     global _is_unmodified_mach_core_thread
     _is_unmodified_mach_core_thread = Thread(
-        target=_is_unmodified_mach_core, args=[topsrcdir]
+        target=_is_unmodified_mach_core,
+        args=[topsrcdir],
+        daemon=True,
     )
     _is_unmodified_mach_core_thread.start()
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/python/mozbuild/mozbuild/doctor.py firefox-trunk-95.0~a1~hg20211020r596404/python/mozbuild/mozbuild/doctor.py
--- firefox-trunk-95.0~a1~hg20211017r596111/python/mozbuild/mozbuild/doctor.py	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/python/mozbuild/mozbuild/doctor.py	2021-10-20 19:28:34.000000000 +0000
@@ -168,6 +168,28 @@
                     "hg.mozilla.org.".format(username)
                 ],
             )
+
+        if "Mercurial access is currently disabled on your account" in proc.stdout:
+            return DoctorCheck(
+                name="ssh",
+                status=CheckStatus.FATAL,
+                display_text=[
+                    "You previously had push access to hgmo, but due to inactivity",
+                    "your access was revoked. Please file a bug in Bugzilla under",
+                    "`Infrastructure & Operations :: Infrastructure: LDAP` to request",
+                    "access.",
+                ],
+            )
+
+        return DoctorCheck(
+            name="ssh",
+            status=CheckStatus.WARNING,
+            display_text=[
+                "Unexpected output from `ssh hg.mozilla.org`:",
+                proc.stdout,
+            ],
+        )
+
     except subprocess.CalledProcessError:
         return DoctorCheck(
             name="ssh",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/nsSTSPreloadList.inc firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/nsSTSPreloadList.inc
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/nsSTSPreloadList.inc	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/nsSTSPreloadList.inc	2021-10-20 19:28:35.000000000 +0000
@@ -8,7 +8,7 @@
 /*****************************************************************************/
 
 #include <stdint.h>
-const PRTime gPreloadListExpirationTime = INT64_C(1645094807534000);
+const PRTime gPreloadListExpirationTime = INT64_C(1645440425708000);
 %%
 0--1.de, 1
 0-1.party, 1
@@ -900,6 +900,7 @@
 1234365w.com, 1
 1234365x.com, 1
 1234365y.com, 1
+1234365z.com, 0
 12345.lv, 1
 12345678365.com, 1
 123456789365.com, 1
@@ -1997,8 +1998,6 @@
 26ck.com, 1
 26gt.com, 1
 26ja.com, 1
-26nc.com, 1
-26nd.com, 1
 26pg.com, 1
 26pn.com, 1
 26sn.com, 1
@@ -2146,9 +2145,7 @@
 300llll.com, 1
 300mmmm.com, 1
 300oooo.com, 1
-300qqqq.com, 1
 300rrrr.com, 1
-300uuuu.com, 1
 300xxxx.com, 1
 301.moe, 1
 301.technology, 1
@@ -2199,7 +2196,6 @@
 3178888888.com, 1
 31789999.com, 1
 317899999.com, 1
-3178aaa.com, 1
 3178b.com, 1
 3178bbb.com, 1
 3178c.com, 1
@@ -2628,7 +2624,6 @@
 375422.com, 1
 377625.com, 1
 377632.com, 1
-3778vip.com, 0
 377ks.com, 1
 377zzz.com, 1
 37879.com, 0
@@ -2710,8 +2705,13 @@
 3957f.com, 1
 3957g.com, 1
 396228.com, 1
+396301.com, 0
+396303.com, 0
+396304.com, 0
+396305.com, 0
 3963aa.com, 1
 3963bb.com, 1
+3963cc.com, 0
 3963dd.com, 1
 396422.com, 1
 3970a.com, 1
@@ -2840,7 +2840,6 @@
 3haeuserprojekt.org, 1
 3haueserprojekt.org, 1
 3hh365.com, 1
-3hl0.net, 1
 3i-infotech.com, 1
 3ii365.com, 1
 3james.com, 1
@@ -2949,20 +2948,14 @@
 4000sf.com, 1
 40010monogatari.com, 1
 4005365.com, 1
-400bbbb.com, 1
-400cccc.com, 1
 400eeee.com, 1
 400gggg.com, 1
 400iiii.com, 1
-400jjjj.com, 1
 400llll.com, 1
 400nnnn.com, 1
-400pppp.com, 1
 400tttt.com, 1
 400uuuu.com, 1
-400vvvv.com, 1
 400yaahc.gov, 1
-400yyyy.com, 1
 4025360.com, 1
 4025361.com, 1
 4025362.com, 1
@@ -3318,7 +3311,6 @@
 4kitchenknives.com, 1
 4kpi.eu, 1
 4kprojektory.cz, 1
-4kvids.com, 1
 4lados.tk, 1
 4lephants.tk, 1
 4list.ml, 1
@@ -3385,8 +3377,6 @@
 500eeee.com, 1
 500fcw.com, 1
 500foods.com, 1
-500iiii.com, 1
-500jjjj.com, 1
 500k.nl, 1
 500k8.com, 1
 500mmmm.com, 1
@@ -3394,7 +3384,6 @@
 500p.xyz, 1
 500promokodov.ru, 1
 500qqqq.com, 1
-500rrrr.com, 1
 500tttt.com, 1
 500uuuu.com, 1
 500vvvv.com, 1
@@ -3781,16 +3770,13 @@
 600bbbb.com, 1
 600cao.com, 1
 600dddd.com, 1
-600iiii.com, 1
 600k8.com, 1
 600kkkk.com, 1
-600llll.com, 1
 600mmmm.com, 1
 600pppp.com, 1
 600ssss.com, 1
 600tttt.com, 1
 600vvvv.com, 1
-600wwww.com, 1
 600xxxx.com, 1
 602422.com, 1
 602yb.com, 1
@@ -3913,6 +3899,7 @@
 6396ddd.com, 1
 6396eee.com, 1
 6396fff.com, 1
+6396ggg.com, 0
 6396iii.com, 1
 6396jjj.com, 1
 6396ooo.com, 1
@@ -4410,16 +4397,9 @@
 7-it.ml, 1
 700.az, 1
 700bbbb.com, 1
-700cccc.com, 1
 700dddd.com, 1
-700gggg.com, 1
-700hhhh.com, 1
-700iiii.com, 1
-700mmmm.com, 1
 700uuuu.com, 1
 700wns.com, 1
-700yyyy.com, 1
-700zzzz.com, 1
 701605.com, 1
 701squad.tk, 1
 70365365.com, 0
@@ -4716,21 +4696,17 @@
 8007d88.com, 1
 800999.xyz, 1
 800bbbb.com, 1
-800cccc.com, 1
 800dddd.com, 1
 800eeee.com, 1
 800hhhh.com, 1
 800iiii.com, 1
 800kkkk.com, 1
 800llll.com, 1
-800nnnn.com, 1
 800qqqq.com, 1
 800rrrr.com, 1
 800sf.com, 1
 800vvvv.com, 1
 800wwww.com, 1
-800xxxx.com, 1
-800zzzz.com, 1
 8010d88.com, 1
 8012d88.com, 1
 8017d.com, 1
@@ -5087,6 +5063,7 @@
 861365k.com, 1
 861365l.com, 1
 861365m.com, 1
+861365n.com, 0
 861365o.com, 1
 861365q.com, 1
 861365r.com, 1
@@ -5343,9 +5320,7 @@
 9009019.com, 1
 900aaaa.com, 1
 900bbbb.com, 1
-900cccc.com, 1
 900dddd.com, 1
-900eeee.com, 1
 900gggg.com, 1
 900hosting.com, 1
 900iiii.com, 1
@@ -5354,11 +5329,9 @@
 900nnnn.com, 1
 900pk.com, 1
 900qqqq.com, 1
-900tttt.com, 1
 900uuuu.com, 1
 900wwww.com, 1
 900yyyy.com, 1
-900zzzz.com, 1
 901543.com, 1
 903422.com, 1
 905422.com, 1
@@ -6723,7 +6696,6 @@
 aceinstituteonline.com, 1
 aceitedelcampo.com, 1
 aceleraguria.com.br, 1
-aceleratuweb.com, 1
 acelpb.com, 1
 acem.org.au, 1
 acemadeira.pt, 1
@@ -6737,7 +6709,6 @@
 acercapartners.com, 1
 acerentalandsales.com, 1
 acerislaw.com, 1
-acerosfortuna.com.mx, 1
 acerostrevino.com.mx, 1
 aceshop702.com, 1
 acessoeducacao.com, 1
@@ -7065,6 +7036,7 @@
 adamradocz.com, 1
 adamraoof.tk, 1
 adamricheimer.com, 1
+adams-gonczi.fun, 1
 adams.dk, 1
 adams.es, 1
 adamsasphaltpaving.com, 1
@@ -7094,6 +7066,7 @@
 adarixconsultores.com, 1
 adarshcloud.in, 1
 adarshthapa.in, 1
+adarshthapa.net, 0
 adarsvidler.me, 1
 adasbench.com, 1
 adata.kz, 1
@@ -7493,7 +7466,6 @@
 adventuregamers.com, 1
 adventurenow.nl, 1
 adventureprooutdoors.com, 1
-adventures-abroad.com, 1
 adventures.com, 1
 adventuresinparanoia.com, 1
 adventureswithlillie.ca, 1
@@ -7532,6 +7504,7 @@
 advokat-dtp.ml, 1
 advokat-dtp.tk, 1
 advokat-malinovskii.ml, 1
+advokat-romanov.com, 1
 advokat-vvp.com.ua, 1
 advokat73.gq, 1
 advokati-ceva.cz, 1
@@ -8218,7 +8191,6 @@
 agreor.com, 1
 agri-meet.com, 1
 agri.ee, 1
-agrichamber.com.ua, 1
 agricult.tk, 1
 agricultural-technology.tk, 1
 agriculture-schools.com, 1
@@ -8687,7 +8659,6 @@
 airportcoc.cf, 1
 airportcoc.ga, 1
 airportcoc.ml, 1
-airportlimototoronto.com, 1
 airportstuttgart.com, 1
 airporttaxibudapest.com, 1
 airporttransferbudapest.co.uk, 1
@@ -9281,6 +9252,7 @@
 alexandrastrauss.fr, 1
 alexandrawett.net, 1
 alexandre-acaries.fr, 1
+alexandre-barret.fr, 1
 alexandre-gallais.fr, 1
 alexandreguarita.com.br, 1
 alexandremottier.tk, 1
@@ -10228,6 +10200,7 @@
 alzashop.com, 1
 alziamoiltetto.it, 1
 alzon.cf, 1
+alzulej.pt, 1
 am-39.com, 1
 am-dd.com, 1
 am-executive-consulting.com, 1
@@ -10631,6 +10604,7 @@
 amp-logistics.com, 1
 amped4ski.co.nz, 1
 amper.kharkov.ua, 1
+amperaa.net, 1
 ampersandnbspsemicolon.com, 1
 ampetronic.com, 1
 ampgroep.nl, 1
@@ -12407,6 +12381,7 @@
 archbishop.ga, 1
 archdetal.com.ua, 1
 archeologicatoscana.it, 1
+archeologiegorinchem.com, 1
 archerconsulting.llc, 1
 archerlong.com, 1
 archerlongx.com, 1
@@ -12638,6 +12613,7 @@
 arizona-fake.tk, 1
 arizonaautomobileclub.com, 1
 arizonabondedtitle.com, 1
+arizonamasterworks.com, 1
 arizonaonlinedivorce.com, 1
 arizonatech.tk, 1
 arjan.nl, 1
@@ -13015,6 +12991,7 @@
 artlantis.nl, 1
 artleading.ru, 1
 artlifeisgood.com, 1
+artlinestix.com.au, 1
 artlogo.biz, 1
 artlogo.cz, 1
 artlogo.sk, 1
@@ -13089,7 +13066,6 @@
 arx-libertatis.org, 1
 arx.vg, 1
 arx8x.net, 1
-arxcs.com, 1
 aryabusines.com, 1
 aryacollege.me, 1
 aryalaroca.de, 1
@@ -13256,7 +13232,7 @@
 asiaflash.com, 1
 asiafood-curator.com, 1
 asiagate.ga, 1
-asiahabit.com, 1
+asiahabit.com, 0
 asiaheavens.com, 1
 asiakartu.tk, 1
 asialeonding.at, 1
@@ -13335,7 +13311,8 @@
 asmbsurvey.com, 1
 asmdz.com, 1
 asmeets.nl, 1
-asmm.cc, 0
+asmita.ru, 1
+asmm.cc, 1
 asmobox.ga, 1
 asmood.net, 1
 asmrbuluo.com, 0
@@ -13557,7 +13534,6 @@
 asua.ca, 1
 asuamaytinh.com, 1
 asucrews.com, 1
-asuhe.win, 1
 asukalangley.tk, 1
 asun.co, 1
 asur.store, 1
@@ -13862,7 +13838,6 @@
 atwonline.org, 1
 atxchirocoverage.com, 1
 atxtraumatherapycenter.com, 1
-atyafesolutions.com, 1
 atyourleisureculinary.com, 1
 atyourprice.net, 1
 atypicom.es, 1
@@ -14219,6 +14194,7 @@
 autofresh.tk, 1
 autogear.ga, 1
 autoglass.com.my, 1
+autograder.ml, 1
 autohausmf-nord.de, 1
 autohaussued.de, 1
 autohit.ro, 1
@@ -14485,7 +14461,7 @@
 autotitleloansnu.ga, 1
 autoto.hr, 1
 autotonic.tk, 1
-autotrac.com.br, 0
+autotrac.com.br, 1
 autotransportquoteservices.com, 1
 autotras.com, 1
 autotyreprest.ro, 1
@@ -14515,7 +14491,6 @@
 autowerkstatt-puchheim.de, 1
 autozaz.ml, 1
 autozuki.com, 1
-autre.cn, 1
 autres-talents.fr, 1
 autshir.com, 1
 autumnhungary.tk, 1
@@ -14775,6 +14750,7 @@
 avonlearningcampus.com, 1
 avonture.be, 1
 avonvets.co.uk, 1
+avova.de, 1
 avpres.net, 0
 avptp.org, 1
 avqueen.cn, 1
@@ -15349,6 +15325,7 @@
 b96899.com, 1
 b9728.co, 1
 b979333.com, 1
+b979365.com, 0
 b979555.com, 1
 b979666.com, 1
 b979999.com, 1
@@ -15408,6 +15385,7 @@
 b9999qq.com, 1
 b9999tt.com, 1
 b9999vv.com, 1
+b9999ww.com, 0
 b9999yy.com, 1
 b9999zz.com, 1
 b99iosapp.com, 1
@@ -17403,7 +17381,6 @@
 berightthere.eu, 1
 berikod.ru, 1
 beris.us, 1
-berita.press, 0
 beritalima.com, 1
 beritamotor.tk, 1
 beritanow.tk, 1
@@ -17515,7 +17492,6 @@
 besnard.me, 1
 besnik.de, 0
 besnik.tk, 1
-besola.de, 1
 besole.ch, 1
 besolov.tk, 1
 besonders-s.at, 1
@@ -17866,6 +17842,7 @@
 besv.com, 1
 beszerzokozpont.hu, 1
 bet-platform.com, 1
+bet031.com, 0
 bet03vip.com, 0
 bet064.com, 1
 bet06vip.com, 1
@@ -18308,7 +18285,7 @@
 bgmall.tk, 1
 bgmedia.tk, 1
 bgmn.me, 1
-bgmsquad.com, 1
+bgmsquad.com, 0
 bgp.space, 1
 bgr34.cz, 1
 bgs-game.com, 1
@@ -18416,6 +18393,7 @@
 bicicletassym.com.co, 1
 bicignet.ga, 1
 bicommarketing.com, 1
+bicranial.io, 0
 bicromoestudio.com, 1
 bicstone.me, 1
 bicubic.tk, 1
@@ -18776,7 +18754,7 @@
 binhdang.me, 0
 binhex.net, 1
 binhminhpc.com, 1
-bini-solution.com, 1
+bini-solution.com, 0
 binimo.com, 1
 biniou.net, 1
 binkanhada.biz, 1
@@ -19191,6 +19169,7 @@
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 vjeff.com, 1
 vjeff.net, 1
 vjhfoundation.org, 1
-vjshi.xyz, 1
 vk-agent.ru, 1
 vk-group.com, 1
 vk-k.com, 1
@@ -120471,6 +120402,8 @@
 vulnerabilityscans.nl, 1
 vulnerable.af, 1
 vulners.com, 1
+vulns.sexy, 1
+vulns.xyz, 1
 vulnscan.org, 1
 vulpine.club, 1
 vulpr.com, 1
@@ -120790,7 +120723,6 @@
 wajtc.com, 1
 wak.io, 1
 waka-mono.com, 1
-wakandasun.com, 0
 wakarandroid.com, 1
 wakastream.cc, 1
 wakatime.com, 1
@@ -120816,7 +120748,7 @@
 walent.in, 1
 walentin.co, 1
 walhal.la, 1
-waligorska.pl, 0
+waligorska.pl, 1
 walk.onl, 1
 walkaround.tk, 1
 walker-foundation.org, 1
@@ -121164,7 +121096,6 @@
 waterlens.moe, 1
 waterliteracy.tk, 1
 waterloofaucets.com, 1
-watermarkly.com, 1
 watermitigationspecialists.com, 1
 watermonitor.gov, 1
 wateroutlook.com, 1
@@ -121206,7 +121137,6 @@
 waukeshairon.com, 1
 waupacacounty-wi.gov, 1
 wav-productions.com, 1
-wav.tv, 1
 wave-inc.co.jp, 1
 wave.is, 1
 wave.red, 1
@@ -121710,7 +121640,6 @@
 webs4all.ro, 0
 websanlamuerte.tk, 1
 webschool21.ml, 1
-websdeweb.com, 1
 websec.nu, 1
 websectools.com, 1
 websecurity.is, 1
@@ -121718,6 +121647,7 @@
 webseitenserver.com, 0
 websenat.de, 1
 webshan.ir, 0
+webshaped.de, 1
 webshop.nl, 1
 website-engineering.co.za, 0
 website-traffic.shop, 1
@@ -122387,6 +122317,7 @@
 whexit.nl, 1
 whey-protein.ch, 1
 wheyteck.com, 1
+whi.tw, 0
 whichdoctor.com, 1
 whichgender.today, 1
 whiff-of-grape.ca, 1
@@ -122492,6 +122423,7 @@
 whoagirls.com, 1
 whoagirls.net, 0
 whoagirls.org, 1
+whoami.eu.org, 1
 whoami.io, 1
 whocalld.com, 1
 whocalled.us, 1
@@ -122802,6 +122734,7 @@
 wildandisle.com, 1
 wildandwonderfulbodycare.com, 1
 wildandwonderfulketo.com, 1
+wildanfauzy.com, 0
 wildbergh.tk, 1
 wildberries.cf, 1
 wildbirds.dk, 1
@@ -123004,7 +122937,6 @@
 winek.tk, 1
 wineparis.com, 1
 winerytoursanfrancisco.com, 1
-wineworksonline.com, 1
 winfar.co.za, 1
 winfieldchen.me, 1
 winfilestorage.tk, 1
@@ -123725,6 +123657,7 @@
 worldnewsphoto.tk, 1
 worldofarganoil.com, 1
 worldofbelia.de, 1
+worldofgeekstuff.com, 1
 worldofghibli.id, 1
 worldofheroes.ml, 1
 worldoflegion.ml, 1
@@ -123934,7 +123867,6 @@
 wptotal.com, 1
 wptrigone.net, 1
 wpuse.ru, 1
-wpvibes.com, 1
 wq.ro, 1
 wqaw3.tk, 1
 wr.su, 1
@@ -124313,7 +124245,6 @@
 x-embed.com, 1
 x-files.tk, 1
 x-iweb.ru, 1
-x-lan.be, 1
 x-net24.pl, 1
 x-one.co.jp, 1
 x-orbit.dk, 1
@@ -124677,7 +124608,6 @@
 xianjianruishiyouyiyuan.com, 1
 xiao-sheng.gq, 1
 xiaobai.pro, 0
-xiaobude.cn, 1
 xiaocg.xyz, 1
 xiaodingyi.cn, 1
 xiaofengsky.com, 0
@@ -124846,9 +124776,9 @@
 xinpujing918.com, 0
 xinsane.com, 1
 xinshanla.com, 1
-xinsto.com, 1
 xinu.xyz, 1
 xinxin.pl, 1
+xinyezx.com, 1
 xinyitour.tw, 1
 xio.moe, 1
 xion.nu, 1
@@ -124873,7 +124803,6 @@
 xkeyc.cn, 1
 xkviz.net, 1
 xkwy2018.cn, 1
-xlan.be, 1
 xlange.com, 1
 xlaw.com.br, 1
 xldl.ml, 1
@@ -124888,6 +124817,7 @@
 xlyingyuan.com, 0
 xm.digital, 1
 xmag.pl, 1
+xmdhs.top, 1
 xmediabigz.tk, 1
 xmediazxy.tk, 1
 xmedius.ca, 0
@@ -125983,7 +125913,6 @@
 yasmingarcia.tk, 1
 yasraiting.tk, 1
 yasrating.tk, 1
-yassine-ayari.com, 1
 yassinesmael.tk, 1
 yasudaseiki.cn, 1
 yasukevicious.com, 1
@@ -126396,7 +126325,6 @@
 yoshitsugu.net, 1
 yoshiya2020.com, 1
 yoshkar-ola-city.tk, 1
-yosida-dental.com, 1
 yosida95.com, 1
 yospos.org, 1
 yoti.com, 1
@@ -126416,7 +126344,7 @@
 youber.cz, 1
 youbil.com, 1
 youc.ir, 1
-youcanbook.me, 1
+youcanbook.me, 0
 youcanfinance.com.au, 1
 youcanfuckoff.xyz, 1
 youcanhelp.tk, 1
@@ -126927,7 +126855,6 @@
 z-pc.net, 1
 z-rejstejna.cz, 1
 z-vector.com, 1
-z.ai, 1
 z.cash, 1
 z.is, 1
 z.md, 1
@@ -127434,6 +127361,7 @@
 zd9797.com, 1
 zdbl.de, 1
 zdenek-hejl.com, 1
+zdenekpasek.com, 1
 zdenekpasek.cz, 1
 zdenekspacek.cz, 1
 zdenekvecera.cz, 1
@@ -127477,6 +127405,7 @@
 zecuur.nl, 1
 zedeko.pl, 1
 zedern-welt.de, 1
+zedex.cn, 1
 zednet.tk, 1
 zeds-official.com, 1
 zeedroom.be, 0
@@ -127725,6 +127654,7 @@
 zhaopage.com, 1
 zhaostephen.com, 1
 zhaoxixiangban.cc, 1
+zhaozhiru.com, 1
 zhattyt.com, 1
 zhbot.org, 1
 zhcexo.com, 1
@@ -127811,6 +127741,7 @@
 zighinetto.org, 1
 zigi.io, 1
 zigottos.fr, 1
+zigsphere.com, 0
 zigzagmart.com, 1
 zihao.me, 0
 zihari.com, 1
@@ -128235,6 +128166,7 @@
 zseartcc.org, 1
 zselicivt.hu, 1
 zserver.fr, 1
+zsi.com.tr, 1
 zsien.cn, 1
 zskomenskeho.cz, 1
 zsoltbereczki.tk, 1
@@ -128258,7 +128190,7 @@
 zubilo-perm.ru, 1
 zubnivodni.cz, 1
 zubr.net, 1
-zubro.net, 1
+zubro.net, 0
 zudomc.me, 1
 zuefle.net, 1
 zuehlcke.de, 1
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/StaticHPKPins.h firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/StaticHPKPins.h
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/StaticHPKPins.h	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/StaticHPKPins.h	2021-10-20 19:28:34.000000000 +0000
@@ -1149,4 +1149,4 @@
 
 static const int32_t kUnknownId = -1;
 
-static const PRTime kPreloadPKPinsExpirationTime = INT64_C(1642675615870000);
+static const PRTime kPreloadPKPinsExpirationTime = INT64_C(1643021232351000);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/alloworigin.sjs firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/alloworigin.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/alloworigin.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/alloworigin.sjs	2021-10-20 19:28:35.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 200, "OK");
   response.setHeader("Access-Control-Allow-Origin", "*");
   response.write("<html><body>hello!</body></html>");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/emptyimage.sjs firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/emptyimage.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/emptyimage.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/emptyimage.sjs	2021-10-20 19:28:35.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 200, "OK");
   //response.setHeader("Content-type", "image/gif");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/hugebmp.sjs firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/hugebmp.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/hugebmp.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/hugebmp.sjs	2021-10-20 19:28:35.000000000 +0000
@@ -1,13 +1,15 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 200, "OK");
   response.setHeader("Content-type", "image/bitmap");
-  
-  let bmpheader = "\x42\x4D\x36\x10\x0E\x00\x00\x00\x00\x00\x36\x00\x00\x00\x28\x00\x00\x00\x80\x02\x00\x00\xE0\x01\x00\x00\x01\x00\x18\x00\x00\x00\x00\x00\x00\x10\x0E\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
-  let bmpdatapiece = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
+
+  let bmpheader =
+    "\x42\x4D\x36\x10\x0E\x00\x00\x00\x00\x00\x36\x00\x00\x00\x28\x00\x00\x00\x80\x02\x00\x00\xE0\x01\x00\x00\x01\x00\x18\x00\x00\x00\x00\x00\x00\x10\x0E\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
+  let bmpdatapiece =
+    "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
 
   response.bodyOutputStream.write(bmpheader, 54);
   // Fill 640*480*3 nulls
-  for (let i = 0; i < (640 * 480 * 3) / 64; ++i)
+  for (let i = 0; i < (640 * 480 * 3) / 64; ++i) {
     response.bodyOutputStream.write(bmpdatapiece, 64);
+  }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/iframesecredirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/iframesecredirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/iframesecredirect.sjs	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/iframesecredirect.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,5 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 307, "Moved temporarly");
-  response.setHeader("Location", "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html");
+  response.setHeader(
+    "Location",
+    "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/iframeunsecredirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/iframeunsecredirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/iframeunsecredirect.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/iframeunsecredirect.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,5 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 307, "Moved temporarly");
-  response.setHeader("Location", "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html");
+  response.setHeader(
+    "Location",
+    "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/imgsecredirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/imgsecredirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/imgsecredirect.sjs	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/imgsecredirect.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,5 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 307, "Moved temporarly");
-  response.setHeader("Location", "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg");
+  response.setHeader(
+    "Location",
+    "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/imgunsecredirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/imgunsecredirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/imgunsecredirect.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/imgunsecredirect.sjs	2021-10-20 19:28:35.000000000 +0000
@@ -1,5 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 307, "Moved temporarly");
-  response.setHeader("Location", "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg");
+  response.setHeader(
+    "Location",
+    "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/nocontent.sjs firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/nocontent.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/nocontent.sjs	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/nocontent.sjs	2021-10-20 19:28:33.000000000 +0000
@@ -1,4 +1,3 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 204, "No Content");
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/redirecttoemptyimage.sjs firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/redirecttoemptyimage.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/mochitest/mixedcontent/redirecttoemptyimage.sjs	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/mochitest/mixedcontent/redirecttoemptyimage.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -1,5 +1,7 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 307, "Moved temporarly");
-  response.setHeader("Location", "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/emptyimage.sjs");
+  response.setHeader(
+    "Location",
+    "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/emptyimage.sjs"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/unit/test_content_signing/pysign.py firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/unit/test_content_signing/pysign.py
--- firefox-trunk-95.0~a1~hg20211017r596111/security/manager/ssl/tests/unit/test_content_signing/pysign.py	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/manager/ssl/tests/unit/test_content_signing/pysign.py	2021-10-20 19:28:34.000000000 +0000
@@ -18,18 +18,19 @@
 import base64
 import binascii
 import hashlib
-import os
+import pathlib
 import six
 import sys
 
 import ecdsa
 
-# For pykey
-sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+# For pykey, find the relative file location and add it to path
+toolsDir = (pathlib.Path(__file__).parents[4] / "tools").resolve()
+sys.path.append(str(toolsDir))
 import pykey
 
 data = sys.stdin.buffer.read()
 
 key = pykey.ECCKey("secp384r1")
 sig = key.signRaw(b"Content-Signature:\00" + data, pykey.HASH_SHA384)
-print base64.b64encode(sig).replace("+", "-").replace("/", "_")
+print(str(base64.b64encode(sig)).replace("+", "-").replace("/", "_"))
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/nss/automation/abi-check/previous-nss-release firefox-trunk-95.0~a1~hg20211020r596404/security/nss/automation/abi-check/previous-nss-release
--- firefox-trunk-95.0~a1~hg20211017r596111/security/nss/automation/abi-check/previous-nss-release	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/nss/automation/abi-check/previous-nss-release	2021-10-20 19:28:35.000000000 +0000
@@ -1 +1 @@
-NSS_3_70_BRANCH
+NSS_3_71_BRANCH
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/nss/coreconf/coreconf.dep firefox-trunk-95.0~a1~hg20211020r596404/security/nss/coreconf/coreconf.dep
--- firefox-trunk-95.0~a1~hg20211017r596111/security/nss/coreconf/coreconf.dep	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/nss/coreconf/coreconf.dep	2021-10-20 19:28:35.000000000 +0000
@@ -10,3 +10,4 @@
  */
 
 #error "Do not include this header file."
+
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/nss/lib/nss/nss.h firefox-trunk-95.0~a1~hg20211020r596404/security/nss/lib/nss/nss.h
--- firefox-trunk-95.0~a1~hg20211017r596111/security/nss/lib/nss/nss.h	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/nss/lib/nss/nss.h	2021-10-20 19:28:34.000000000 +0000
@@ -22,12 +22,12 @@
  * The format of the version string should be
  *     "<major version>.<minor version>[.<patch level>[.<build number>]][ <ECC>][ <Beta>]"
  */
-#define NSS_VERSION "3.71" _NSS_CUSTOMIZED
+#define NSS_VERSION "3.72" _NSS_CUSTOMIZED " Beta"
 #define NSS_VMAJOR 3
-#define NSS_VMINOR 71
+#define NSS_VMINOR 72
 #define NSS_VPATCH 0
 #define NSS_VBUILD 0
-#define NSS_BETA PR_FALSE
+#define NSS_BETA PR_TRUE
 
 #ifndef RC_INVOKED
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/nss/lib/softoken/lowpbe.c firefox-trunk-95.0~a1~hg20211020r596404/security/nss/lib/softoken/lowpbe.c
--- firefox-trunk-95.0~a1~hg20211017r596111/security/nss/lib/softoken/lowpbe.c	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/nss/lib/softoken/lowpbe.c	2021-10-20 19:28:35.000000000 +0000
@@ -570,7 +570,7 @@
 /* Bug 1606992 - Cache the hash result for the common case that we're
  * asked to repeatedly compute the key for the same password item,
  * hash, iterations and salt. */
-#define KDF2_CACHE_COUNT 2
+#define KDF2_CACHE_COUNT 3
 static struct {
     PZLock *lock;
     struct {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/nss/lib/softoken/softkver.h firefox-trunk-95.0~a1~hg20211020r596404/security/nss/lib/softoken/softkver.h
--- firefox-trunk-95.0~a1~hg20211017r596111/security/nss/lib/softoken/softkver.h	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/nss/lib/softoken/softkver.h	2021-10-20 19:28:36.000000000 +0000
@@ -17,11 +17,11 @@
  * The format of the version string should be
  *     "<major version>.<minor version>[.<patch level>[.<build number>]][ <ECC>][ <Beta>]"
  */
-#define SOFTOKEN_VERSION "3.71" SOFTOKEN_ECC_STRING
+#define SOFTOKEN_VERSION "3.72" SOFTOKEN_ECC_STRING " Beta"
 #define SOFTOKEN_VMAJOR 3
-#define SOFTOKEN_VMINOR 71
+#define SOFTOKEN_VMINOR 72
 #define SOFTOKEN_VPATCH 0
 #define SOFTOKEN_VBUILD 0
-#define SOFTOKEN_BETA PR_FALSE
+#define SOFTOKEN_BETA PR_TRUE
 
 #endif /* _SOFTKVER_H_ */
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/nss/lib/util/nssutil.h firefox-trunk-95.0~a1~hg20211020r596404/security/nss/lib/util/nssutil.h
--- firefox-trunk-95.0~a1~hg20211017r596111/security/nss/lib/util/nssutil.h	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/nss/lib/util/nssutil.h	2021-10-20 19:28:35.000000000 +0000
@@ -19,12 +19,12 @@
  * The format of the version string should be
  *     "<major version>.<minor version>[.<patch level>[.<build number>]][ <Beta>]"
  */
-#define NSSUTIL_VERSION "3.71"
+#define NSSUTIL_VERSION "3.72 Beta"
 #define NSSUTIL_VMAJOR 3
-#define NSSUTIL_VMINOR 71
+#define NSSUTIL_VMINOR 72
 #define NSSUTIL_VPATCH 0
 #define NSSUTIL_VBUILD 0
-#define NSSUTIL_BETA PR_FALSE
+#define NSSUTIL_BETA PR_TRUE
 
 SEC_BEGIN_PROTOS
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/nss/TAG-INFO firefox-trunk-95.0~a1~hg20211020r596404/security/nss/TAG-INFO
--- firefox-trunk-95.0~a1~hg20211017r596111/security/nss/TAG-INFO	2021-10-17 14:42:49.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/nss/TAG-INFO	2021-10-20 19:28:35.000000000 +0000
@@ -1 +1 @@
-NSS_3_71_RTM
\ No newline at end of file
+de3db3a55aef
\ No newline at end of file
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/security/sandbox/common/test/SandboxTestingChildTests.h firefox-trunk-95.0~a1~hg20211020r596404/security/sandbox/common/test/SandboxTestingChildTests.h
--- firefox-trunk-95.0~a1~hg20211017r596111/security/sandbox/common/test/SandboxTestingChildTests.h	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/security/sandbox/common/test/SandboxTestingChildTests.h	2021-10-20 19:28:35.000000000 +0000
@@ -29,6 +29,10 @@
 #  include <unistd.h>
 #endif
 
+#ifdef XP_MACOSX
+#  include <CoreGraphics/CoreGraphics.h>
+#endif
+
 namespace mozilla {
 
 void RunTestsContent(SandboxTestingChild* child) {
@@ -109,6 +113,21 @@
   });
 #  endif  // XP_LINUX
 
+#  ifdef XP_MACOSX
+  // Test that content processes can not connect to the macOS window server.
+  // CGSessionCopyCurrentDictionary() returns NULL when a connection to the
+  // window server is not available.
+  CFDictionaryRef windowServerDict = CGSessionCopyCurrentDictionary();
+  bool gotWindowServerDetails = (windowServerDict != nullptr);
+  child->SendReportTestResults(
+      "CGSessionCopyCurrentDictionary"_ns, false, gotWindowServerDetails,
+      gotWindowServerDetails ? "Failed: dictionary unexpectedly returned"_ns
+                             : "Succeeded: no dictionary returned"_ns);
+  if (windowServerDict != nullptr) {
+    CFRelease(windowServerDict);
+  }
+#  endif
+
 #else   // XP_UNIX
   child->ReportNoTests();
 #endif  // XP_UNIX
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/services/fxaccounts/tests/mochitest/file_invalidEmailCase.sjs firefox-trunk-95.0~a1~hg20211020r596404/services/fxaccounts/tests/mochitest/file_invalidEmailCase.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/services/fxaccounts/tests/mochitest/file_invalidEmailCase.sjs	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/services/fxaccounts/tests/mochitest/file_invalidEmailCase.sjs	2021-10-20 19:28:34.000000000 +0000
@@ -21,9 +21,11 @@
  */
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 const goodEmail = "Greta.Garbo@gmail.COM";
 const badEmail = "greta.garbo@gmail.com";
@@ -77,4 +79,3 @@
   messageStr = JSON.stringify(message);
   response.bodyOutputStream.write(messageStr, messageStr.length);
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/services/settings/dumps/blocklists/addons-bloomfilters.json firefox-trunk-95.0~a1~hg20211020r596404/services/settings/dumps/blocklists/addons-bloomfilters.json
--- firefox-trunk-95.0~a1~hg20211017r596111/services/settings/dumps/blocklists/addons-bloomfilters.json	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/services/settings/dumps/blocklists/addons-bloomfilters.json	2021-10-20 19:28:34.000000000 +0000
@@ -3,6 +3,36 @@
     {
       "stash": {
         "blocked": [
+          "vipkdy@com.vipkdy:5.5.1.32",
+          "vipkdy@com.vipkdy:5.5.1.26",
+          "vipkdy@com.vipkdy:5.5.1.8",
+          "@ultimateshoppingsearch:1.1.8",
+          "vipkdy@com.vipkdy:5.5.1.30",
+          "vipkdy@com.vipkdy:5.5.1.9",
+          "vipkdy@com.vipkdy:5.5.1.33",
+          "@ultimateshoppingsearch:1.1.6",
+          "vipkdy@com.vipkdy:5.5.1.20",
+          "@ultimateshoppingsearch:1.2.0",
+          "@ultimateshoppingsearch:1.1.9",
+          "vipkdy@com.vipkdy:5.5.1.28",
+          "vipkdy@com.vipkdy:5.5.1.36",
+          "vipkdy@com.vipkdy:5.5.1.3",
+          "@ultimateshoppingsearch:1.2.2",
+          "vipkdy@com.vipkdy:5.5.1.21",
+          "@ultimateshoppingsearch:1.2.1",
+          "@ultimateshoppingsearch:1.1.7"
+        ],
+        "unblocked": []
+      },
+      "schema": 1634206554527,
+      "key_format": "{guid}:{version}",
+      "stash_time": 1634236509443,
+      "id": "9737d55d-c647-485e-a801-c9ca425a5432",
+      "last_modified": 1634236664195
+    },
+    {
+      "stash": {
+        "blocked": [
           "jid1-4P0kohSJxU1qGg@jetpack:1.81.165",
           "jid1-4P0kohSJxU1qGg@jetpack:1.96.206",
           "jid1-4P0kohSJxU1qGg@jetpack:1.96.743",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/services/settings/dumps/security-state/intermediates.json firefox-trunk-95.0~a1~hg20211020r596404/services/settings/dumps/security-state/intermediates.json
--- firefox-trunk-95.0~a1~hg20211017r596111/services/settings/dumps/security-state/intermediates.json	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/services/settings/dumps/security-state/intermediates.json	2021-10-20 19:28:35.000000000 +0000
@@ -1,7 +1,313 @@
 {
   "data": [
     {
-      "schema": 1634131327830,
+      "schema": 1634309429571,
+      "derHash": "q97sUxSQmPigsH79lys0Wom+3o7eaXXmG+le4Cbafvo=",
+      "subject": "CN=Actalis Client Authentication CA G1,O=Actalis S.p.A./03358520967,L=Milano,ST=Milano,C=IT",
+      "subjectDN": "MIGCMQswCQYDVQQGEwJJVDEPMA0GA1UECAwGTWlsYW5vMQ8wDQYDVQQHDAZNaWxhbm8xIzAhBgNVBAoMGkFjdGFsaXMgUy5wLkEuLzAzMzU4NTIwOTY3MSwwKgYDVQQDDCNBY3RhbGlzIENsaWVudCBBdXRoZW50aWNhdGlvbiBDQSBHMQ==",
+      "whitelist": false,
+      "attachment": {
+        "hash": "737f0f0ce1590b65bb7efa52f0521e84ec1ac16313c8b4c6cd288064af2d127d",
+        "size": 2235,
+        "filename": "YsqG87ugr7iITRNFFaHeNX5oMmY80JlEVuqBCxAhZAM=.pem",
+        "location": "security-state-staging/intermediates/5df58a07-e383-4a1a-8af4-9471aa61c013.pem",
+        "mimetype": "application/x-pem-file"
+      },
+      "pubKeyHash": "YsqG87ugr7iITRNFFaHeNX5oMmY80JlEVuqBCxAhZAM=",
+      "crlite_enrolled": false,
+      "id": "621a2382-280e-48de-b859-5293ba5379b7",
+      "last_modified": 1634309862997
+    },
+    {
+      "schema": 1634309428400,
+      "derHash": "d4xRba7HAO5Ys1geQR5cDdR4ZjpRY6KYlTQVB9bpZN0=",
+      "subject": "CN=SHECA DV Server CA G5,O=UniTrust,C=CN",
+      "subjectDN": "MEAxCzAJBgNVBAYTAkNOMREwDwYDVQQKDAhVbmlUcnVzdDEeMBwGA1UEAwwVU0hFQ0EgRFYgU2VydmVyIENBIEc1",
+      "whitelist": false,
+      "attachment": {
+        "hash": "4153674bf85308618da92043981bdd2d2f7ca5a4ed109d39c822cdd2408d1775",
+        "size": 2008,
+        "filename": "LSv8B00n0rDwNaioIz0qIgnC9J7YkSK9NS35qVjVZK4=.pem",
+        "location": "security-state-staging/intermediates/9e707aa9-a13b-417d-ac93-377ab92b3136.pem",
+        "mimetype": "application/x-pem-file"
+      },
+      "pubKeyHash": "LSv8B00n0rDwNaioIz0qIgnC9J7YkSK9NS35qVjVZK4=",
+      "crlite_enrolled": false,
+      "id": "3884a378-6d9c-42ab-a578-6a20d7e609a8",
+      "last_modified": 1634309862974
+    },
+    {
+      "schema": 1634309626145,
+      "derHash": "d4xRba7HAO5Ys1geQR5cDdR4ZjpRY6KYlTQVB9bpZN0=",
+      "subject": "CN=SHECA DV Server CA G5,O=UniTrust,C=CN",
+      "subjectDN": "MEAxCzAJBgNVBAYTAkNOMREwDwYDVQQKDAhVbmlUcnVzdDEeMBwGA1UEAwwVU0hFQ0EgRFYgU2VydmVyIENBIEc1",
+      "whitelist": false,
+      "attachment": {
+        "hash": "4153674bf85308618da92043981bdd2d2f7ca5a4ed109d39c822cdd2408d1775",
+        "size": 2008,
+        "filename": "LSv8B00n0rDwNaioIz0qIgnC9J7YkSK9NS35qVjVZK4=.pem",
+        "location": "security-state-staging/intermediates/616b8c10-5e1d-4a6f-9d4b-0e50a8fd9dc5.pem",
+        "mimetype": "application/x-pem-file"
+      },
+      "pubKeyHash": "LSv8B00n0rDwNaioIz0qIgnC9J7YkSK9NS35qVjVZK4=",
+      "crlite_enrolled": false,
+      "id": "0b34f843-08b5-4719-befd-242cfb5b537c",
+      "last_modified": 1634309862951
+    },
+    {
+      "schema": 1634309425878,
+      "derHash": "/mtvnkS2cHl9UuXxbvG7ELSes61mJSL8Yys335pQRM0=",
+      "subject": "CN=Staclar TLS Issuing CA R1,O=Staclar\\, Inc.,L=Claymont,ST=Delaware,C=US",
+      "subjectDN": "MG8xCzAJBgNVBAYTAlVTMREwDwYDVQQIDAhEZWxhd2FyZTERMA8GA1UEBwwIQ2xheW1vbnQxFjAUBgNVBAoMDVN0YWNsYXIsIEluYy4xIjAgBgNVBAMMGVN0YWNsYXIgVExTIElzc3VpbmcgQ0EgUjE=",
+      "whitelist": false,
+      "attachment": {
+        "hash": "54038b6768167a2d4b10ab95d2f8e93b47ab7b8e6233e07343f621a977f51f34",
+        "size": 2495,
+        "filename": "2hrK22IRCeQc0huhCCGTSKY2R0LmyeFUaH4ArRR6YUc=.pem",
+        "location": "security-state-staging/intermediates/3efc8703-5c7e-45d9-b345-9857aec25425.pem",
+        "mimetype": "application/x-pem-file"
+      },
+      "pubKeyHash": "2hrK22IRCeQc0huhCCGTSKY2R0LmyeFUaH4ArRR6YUc=",
+      "crlite_enrolled": true,
+      "id": "b3bfb57e-84e5-459a-93ea-751a8c706623",
+      "last_modified": 1634309862928
+    },
+    {
+      "schema": 1634309427798,
+      "derHash": "/M986IpkKHTRwQf00QxqfdM0eXY5upgTBFRWLDA68XA=",
+      "subject": "CN=Quantum Basic TLS DV RSA R1,O=Quantum CA Limited,C=GB",
+      "subjectDN": "MFAxCzAJBgNVBAYTAkdCMRswGQYDVQQKDBJRdWFudHVtIENBIExpbWl0ZWQxJDAiBgNVBAMMG1F1YW50dW0gQmFzaWMgVExTIERWIFJTQSBSMQ==",
+      "whitelist": false,
+      "attachment": {
+        "hash": "9a5b9cf6da2c98fb4d3adb057a8cb4c74161b112407d57a29dd0fc9cb2d24904",
+        "size": 2381,
+        "filename": "OB3HSFDxykZYkZCziJA-6l6iHYbsqNrhFIrMg_L45mU=.pem",
+        "location": "security-state-staging/intermediates/0f12f590-b4c0-47a3-a66e-78070f6bfe7f.pem",
+        "mimetype": "application/x-pem-file"
+      },
+      "pubKeyHash": "OB3HSFDxykZYkZCziJA+6l6iHYbsqNrhFIrMg/L45mU=",
+      "crlite_enrolled": true,
+      "id": "10b10ba7-6c85-4583-9814-eda266ae2416",
+      "last_modified": 1634309862903
+    },
+    {
+      "schema": 1634309426524,
+      "derHash": "N/0pxwHWl3mY8gUVPqikwumWNU3wctSYTcXYsfdaK2E=",
+      "subject": "CN=SwissNS TLS Issuing RSA CA R1,O=swissns GmbH,L=Luzern,ST=Luzern,C=CH",
+      "subjectDN": "MG4xCzAJBgNVBAYTAkNIMQ8wDQYDVQQIDAZMdXplcm4xDzANBgNVBAcMBkx1emVybjEVMBMGA1UECgwMc3dpc3NucyBHbWJIMSYwJAYDVQQDDB1Td2lzc05TIFRMUyBJc3N1aW5nIFJTQSBDQSBSMQ==",
+      "whitelist": false,
+      "attachment": {
+        "hash": "712a44aa441a1572aa92968b2b418a8c979bfb72b6b17653fed5888d76210828",
+        "size": 2544,
+        "filename": "KAda-LJFeGtGthCqCejer2EUArFZNe-fmlkLdhkdcJc=.pem",
+        "location": "security-state-staging/intermediates/2b761dc1-930d-4dc0-ba17-650c271bfb95.pem",
+        "mimetype": "application/x-pem-file"
+      },
+      "pubKeyHash": "KAda+LJFeGtGthCqCejer2EUArFZNe+fmlkLdhkdcJc=",
+      "crlite_enrolled": true,
+      "id": "32fe68ce-7d4c-4d54-bab1-b2aab2d02223",
+      "last_modified": 1634309862879
+    },
+    {
+      "schema": 1634291406255,
+      "derHash": "NtGanN5gKdFNpNlRc1GQu0zG2yBtZD9kdNdzlHSRIpk=",
+      "subject": "CN=Quantum Secure Site OV Pro TLS CN RSA R1,O=Quantum CA Limited,C=GB",
+      "subjectDN": "MF0xCzAJBgNVBAYTAkdCMRswGQYDVQQKDBJRdWFudHVtIENBIExpbWl0ZWQxMTAvBgNVBAMMKFF1YW50dW0gU2VjdXJlIFNpdGUgT1YgUHJvIFRMUyBDTiBSU0EgUjE=",
+      "whitelist": false,
+      "attachment": {
+        "hash": "37e8e536a1b1e7f4996f53b272104ddf40c3497a8ed88f0be057d22bdedfb8ad",
+        "size": 2402,
+        "filename": "wmkhucJk0k_u-vh155sN1sgtdzW537s_eYqcbeYm4PU=.pem",
+        "location": "security-state-staging/intermediates/271cdd84-3255-4317-bf48-4451169b8dae.pem",
+        "mimetype": "application/x-pem-file"
+      },
+      "pubKeyHash": "wmkhucJk0k/u+vh155sN1sgtdzW537s/eYqcbeYm4PU=",
+      "crlite_enrolled": true,
+      "id": "0dbf6d16-da28-4b79-98b6-478b71d6b156",
+      "last_modified": 1634309862856
+    },
+    {
+      "schema": 1634309425224,
+      "derHash": "5Hft8R61T28u3VaYez2/ivprhVB655KsY81BzkGsE5c=",
+      "subject": "CN=Quantum Secure Site DV TLS CN RSA R1,O=Quantum CA Limited,C=GB",
+      "subjectDN": "MFkxCzAJBgNVBAYTAkdCMRswGQYDVQQKDBJRdWFudHVtIENBIExpbWl0ZWQxLTArBgNVBAMMJFF1YW50dW0gU2VjdXJlIFNpdGUgRFYgVExTIENOIFJTQSBSMQ==",
+      "whitelist": false,
+      "attachment": {
+        "hash": "4a8292642e07c7a31a3e646b5dee0077bb31ab11611979dd57528a38af3c0f4e",
+        "size": 2398,
+        "filename": "iZz0oapRjKvmsylcqDwbwcsBGfrjtSeUvrbqeWauFlo=.pem",
+        "location": "security-state-staging/intermediates/3884e68e-5ff3-4f81-8755-d774a966e23c.pem",
+        "mimetype": "application/x-pem-file"
+      },
+      "pubKeyHash": "iZz0oapRjKvmsylcqDwbwcsBGfrjtSeUvrbqeWauFlo=",
+      "crlite_enrolled": true,
+      "id": "5730e704-8d00-4b00-acc9-6c9fb8d6a310",
+      "last_modified": 1634309862829
+    },
+    {
+      "schema": 1634309427217,
+      "derHash": "VYRK03slu02z/+fc3DkCOkGzxIikepX60fz61Qi3AoU=",
+      "subject": "CN=Dodo Sign TLS ICA RSA R1,O=Dodo Sign Ltd,L=Ebene,ST=Plaines Wilhems,C=MU",
+      "subjectDN": "MHIxCzAJBgNVBAYTAk1VMRgwFgYDVQQIDA9QbGFpbmVzIFdpbGhlbXMxDjAMBgNVBAcMBUViZW5lMRYwFAYDVQQKDA1Eb2RvIFNpZ24gTHRkMSEwHwYDVQQDDBhEb2RvIFNpZ24gVExTIElDQSBSU0EgUjE=",
+      "whitelist": false,
+      "attachment": {
+        "hash": "9bbab79fdec346cdda828bc4486cedf2582bee9d80c23587c1c2f05407854b6e",
+        "size": 2438,
+        "filename": "QBni1na5RD10V0ehoagk-O8mlEaC8kPw1gH8_uoYYTY=.pem",
+        "location": "security-state-staging/intermediates/512c8ed9-74cb-4a34-a0b5-79f8a0f953b2.pem",
+        "mimetype": "application/x-pem-file"
+      },
+      "pubKeyHash": "QBni1na5RD10V0ehoagk+O8mlEaC8kPw1gH8/uoYYTY=",
+      "crlite_enrolled": true,
+      "id": "d63929e7-804a-4e7f-9657-ccb49438e6ad",
+      "last_modified": 1634309862789
+    },
+    {
+      "schema": 1634309424611,
+      "derHash": "lItxEa9C9UbVec/1ziveyCE03ZkUhCvdsMUocutgTjk=",
+      "subject": "CN=SSL.com SSL Intermediate CA ECC R2,O=SSL Corp,L=Houston,ST=Texas,C=US",
+      "subjectDN": "MG8xCzAJBgNVBAYTAlVTMQ4wDAYDVQQIDAVUZXhhczEQMA4GA1UEBwwHSG91c3RvbjERMA8GA1UECgwIU1NMIENvcnAxKzApBgNVBAMMIlNTTC5jb20gU1NMIEludGVybWVkaWF0ZSBDQSBFQ0MgUjI=",
+      "whitelist": false,
+      "attachment": {
+        "hash": "29138ba36283c37133babfb45ad6da91b908056c4bc777229a9b6114c29bb9d7",
+        "size": 1264,
+        "filename": "zGgA4OU4DjJdvpRYUqbi5Vh2g9W5Oc_PgKihy9mkLsE=.pem",
+        "location": "security-state-staging/intermediates/583bc538-020a-40af-92a9-40c3653a90e8.pem",
+        "mimetype": "application/x-pem-file"
+      },
+      "pubKeyHash": "zGgA4OU4DjJdvpRYUqbi5Vh2g9W5Oc/PgKihy9mkLsE=",
+      "crlite_enrolled": true,
+      "id": "a0acdb7c-e477-4e0c-8f54-b838e76497f5",
+      "last_modified": 1634309862765
+    },
+    {
+      "schema": 1634309428987,
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-        "mimetype": "application/x-pem-file"
-      },
-      "pubKeyHash": "KAda+LJFeGtGthCqCejer2EUArFZNe+fmlkLdhkdcJc=",
-      "crlite_enrolled": true,
-      "id": "32fe68ce-7d4c-4d54-bab1-b2aab2d02223",
-      "last_modified": 1620928649971
-    },
-    {
       "schema": 1620917551037,
       "derHash": "Qi+dTmgTTjYrdWnlKYoXPOxAx8cnSyJjqbyK2h0aI/o=",
       "subject": "CN=Data Management Intermediate CA2,O=Fresenius Kabi AG,C=US",
@@ -9307,24 +9469,6 @@
       "last_modified": 1618102648358
     },
     {
-      "schema": 1617770984230,
-      "derHash": "NtGanN5gKdFNpNlRc1GQu0zG2yBtZD9kdNdzlHSRIpk=",
-      "subject": "CN=Quantum Secure Site OV Pro TLS CN RSA R1,O=Quantum CA Limited,C=GB",
-      "subjectDN": "MF0xCzAJBgNVBAYTAkdCMRswGQYDVQQKDBJRdWFudHVtIENBIExpbWl0ZWQxMTAvBgNVBAMMKFF1YW50dW0gU2VjdXJlIFNpdGUgT1YgUHJvIFRMUyBDTiBSU0EgUjE=",
-      "whitelist": false,
-      "attachment": {
-        "hash": "37e8e536a1b1e7f4996f53b272104ddf40c3497a8ed88f0be057d22bdedfb8ad",
-        "size": 2402,
-        "filename": "wmkhucJk0k_u-vh155sN1sgtdzW537s_eYqcbeYm4PU=.pem",
-        "location": "security-state-staging/intermediates/271cdd84-3255-4317-bf48-4451169b8dae.pem",
-        "mimetype": "application/x-pem-file"
-      },
-      "pubKeyHash": "wmkhucJk0k/u+vh155sN1sgtdzW537s/eYqcbeYm4PU=",
-      "crlite_enrolled": true,
-      "id": "0dbf6d16-da28-4b79-98b6-478b71d6b156",
-      "last_modified": 1618102648339
-    },
-    {
       "schema": 1617256194859,
       "derHash": "KFBuM/VaYHIRXz4Eyb2/WvUxLKj8EyUIuXrJn+4FFug=",
       "subject": "CN=DigiCert High Assurance CA-3b,O=DigiCert Inc,C=US",
@@ -12547,24 +12691,6 @@
       "last_modified": 1614391116607
     },
     {
-      "schema": 1614390579264,
-      "derHash": "5Hft8R61T28u3VaYez2/ivprhVB655KsY81BzkGsE5c=",
-      "subject": "CN=Quantum Secure Site DV TLS CN RSA R1,O=Quantum CA Limited,C=GB",
-      "subjectDN": "MFkxCzAJBgNVBAYTAkdCMRswGQYDVQQKDBJRdWFudHVtIENBIExpbWl0ZWQxLTArBgNVBAMMJFF1YW50dW0gU2VjdXJlIFNpdGUgRFYgVExTIENOIFJTQSBSMQ==",
-      "whitelist": false,
-      "attachment": {
-        "hash": "4a8292642e07c7a31a3e646b5dee0077bb31ab11611979dd57528a38af3c0f4e",
-        "size": 2398,
-        "filename": "iZz0oapRjKvmsylcqDwbwcsBGfrjtSeUvrbqeWauFlo=.pem",
-        "location": "security-state-staging/intermediates/3884e68e-5ff3-4f81-8755-d774a966e23c.pem",
-        "mimetype": "application/x-pem-file"
-      },
-      "pubKeyHash": "iZz0oapRjKvmsylcqDwbwcsBGfrjtSeUvrbqeWauFlo=",
-      "crlite_enrolled": true,
-      "id": "5730e704-8d00-4b00-acc9-6c9fb8d6a310",
-      "last_modified": 1614391116588
-    },
-    {
       "schema": 1614347385669,
       "derHash": "53V7sMSUKtwQjQkqF7gSsQQ+BqCU3V4hSSAyVVb8aSQ=",
       "subject": "CN=GlobalSign Atlas ECCR5 DV ACME CA H1 2021,O=GlobalSign nv-sa,C=BE",
@@ -27577,24 +27703,6 @@
       "last_modified": 1591199861175
     },
     {
-      "schema": 1591167097545,
-      "derHash": "VYRK03slu02z/+fc3DkCOkGzxIikepX60fz61Qi3AoU=",
-      "subject": "CN=Dodo Sign TLS ICA RSA R1,O=Dodo Sign Ltd,L=Ebene,ST=Plaines Wilhems,C=MU",
-      "subjectDN": "MHIxCzAJBgNVBAYTAk1VMRgwFgYDVQQIDA9QbGFpbmVzIFdpbGhlbXMxDjAMBgNVBAcMBUViZW5lMRYwFAYDVQQKDA1Eb2RvIFNpZ24gTHRkMSEwHwYDVQQDDBhEb2RvIFNpZ24gVExTIElDQSBSU0EgUjE=",
-      "whitelist": false,
-      "attachment": {
-        "hash": "9bbab79fdec346cdda828bc4486cedf2582bee9d80c23587c1c2f05407854b6e",
-        "size": 2438,
-        "filename": "QBni1na5RD10V0ehoagk-O8mlEaC8kPw1gH8_uoYYTY=.pem",
-        "location": "security-state-staging/intermediates/512c8ed9-74cb-4a34-a0b5-79f8a0f953b2.pem",
-        "mimetype": "application/x-pem-file"
-      },
-      "pubKeyHash": "QBni1na5RD10V0ehoagk+O8mlEaC8kPw1gH8/uoYYTY=",
-      "crlite_enrolled": true,
-      "id": "d63929e7-804a-4e7f-9657-ccb49438e6ad",
-      "last_modified": 1591199861147
-    },
-    {
       "schema": 1591167131818,
       "derHash": "G/2HAtj5uzQPNTggMwwLun5SLGMWTJHylUFNrHl/CGM=",
       "subject": "CN=TI Trust Technologies OV CA,O=TI Trust Technologies S.R.L.,L=Pomezia,ST=Roma,C=IT",
@@ -34741,24 +34849,6 @@
       "last_modified": 1576536531856
     },
     {
-      "schema": 1576536094670,
-      "derHash": "NsfjKXUKQD2wuvBpyanzOWPlyYpmqKtXAW22+IzFYU0=",
-      "subject": "CN=MilleniumSign SSL Certificate CA RSA R2,O=MilleniumSign Limited,L=Ebene,ST=Plaines Wilhems,C=MU",
-      "subjectDN": "MIGJMQswCQYDVQQGEwJNVTEYMBYGA1UECAwPUGxhaW5lcyBXaWxoZW1zMQ4wDAYDVQQHDAVFYmVuZTEeMBwGA1UECgwVTWlsbGVuaXVtU2lnbiBMaW1pdGVkMTAwLgYDVQQDDCdNaWxsZW5pdW1TaWduIFNTTCBDZXJ0aWZpY2F0ZSBDQSBSU0EgUjI=",
-      "whitelist": false,
-      "attachment": {
-        "hash": "3c3182c3f974165726acb2e2b6c35f9306b120ba4684e22ac91eef26e5ef70a1",
-        "size": 2552,
-        "filename": "1jNByu9N5tc5kL0IfWW4-AIUQnp6ljVLB3ROX-cA6b4=.pem",
-        "location": "security-state-staging/intermediates/03421df1-3916-4c0a-87eb-0d83ea93a06f.pem",
-        "mimetype": "application/x-pem-file"
-      },
-      "pubKeyHash": "1jNByu9N5tc5kL0IfWW4+AIUQnp6ljVLB3ROX+cA6b4=",
-      "crlite_enrolled": true,
-      "id": "17e6f300-d0c1-4ef6-ae0f-36ecd026b133",
-      "last_modified": 1576536531841
-    },
-    {
       "schema": 1576536072963,
       "derHash": "pBaiukkMRU4juFvwh9t7E39PR9l0fmD4aS/0yN8OBis=",
       "subject": "CN=TrustOcean Certification Authority,O=QiaoKr Corporation Limited,C=CN",
@@ -39205,24 +39295,6 @@
       "last_modified": 1562025697178
     },
     {
-      "schema": 1562025694846,
-      "derHash": "q97sUxSQmPigsH79lys0Wom+3o7eaXXmG+le4Cbafvo=",
-      "subject": "CN=Actalis Client Authentication CA G1,O=Actalis S.p.A./03358520967,L=Milano,ST=Milano,C=IT",
-      "subjectDN": "MIGCMQswCQYDVQQGEwJJVDEPMA0GA1UECAwGTWlsYW5vMQ8wDQYDVQQHDAZNaWxhbm8xIzAhBgNVBAoMGkFjdGFsaXMgUy5wLkEuLzAzMzU4NTIwOTY3MSwwKgYDVQQDDCNBY3RhbGlzIENsaWVudCBBdXRoZW50aWNhdGlvbiBDQSBHMQ==",
-      "whitelist": false,
-      "attachment": {
-        "hash": "737f0f0ce1590b65bb7efa52f0521e84ec1ac16313c8b4c6cd288064af2d127d",
-        "size": 2235,
-        "filename": "YsqG87ugr7iITRNFFaHeNX5oMmY80JlEVuqBCxAhZAM=.pem",
-        "location": "security-state-staging/intermediates/5df58a07-e383-4a1a-8af4-9471aa61c013.pem",
-        "mimetype": "application/x-pem-file"
-      },
-      "pubKeyHash": "YsqG87ugr7iITRNFFaHeNX5oMmY80JlEVuqBCxAhZAM=",
-      "crlite_enrolled": true,
-      "id": "621a2382-280e-48de-b859-5293ba5379b7",
-      "last_modified": 1562025695624
-    },
-    {
       "schema": 1562025691799,
       "derHash": "Dc3Afsq7v+OKRga6ZjmHzbO9mBf8Z9HdDPCUrIyieH0=",
       "subject": "CN=RapidSSL CA - G2,O=GeoTrust Inc.,C=US",
@@ -41095,24 +41167,6 @@
       "last_modified": 1562025501666
     },
     {
-      "schema": 1562025500166,
-      "derHash": "6uWboswzKBpc3exQz7/Z3QylVl8872mMk2ahDOwIf5c=",
-      "subject": "CN=Domain The Net Technologies Ltd CA for SSL R2,O=Domain The Net Technologies Ltd,C=IL",
-      "subjectDN": "MG8xCzAJBgNVBAYTAklMMSgwJgYDVQQKDB9Eb21haW4gVGhlIE5ldCBUZWNobm9sb2dpZXMgTHRkMTYwNAYDVQQDDC1Eb21haW4gVGhlIE5ldCBUZWNobm9sb2dpZXMgTHRkIENBIGZvciBTU0wgUjI=",
-      "whitelist": false,
-      "attachment": {
-        "hash": "dc6270566751505a7936c7847e06bc81b9c0a9ca4b21fd6512fbeaa3d7d3bc7d",
-        "size": 2483,
-        "filename": "1FBqLyRsP8ibxXXsW64LYWGTeYMGSsUTMFEetUQakD8=.pem",
-        "location": "security-state-staging/intermediates/c052ede4-8c2e-4eed-97b4-5d3e127c78f8.pem",
-        "mimetype": "application/x-pem-file"
-      },
-      "pubKeyHash": "1FBqLyRsP8ibxXXsW64LYWGTeYMGSsUTMFEetUQakD8=",
-      "crlite_enrolled": true,
-      "id": "461724c9-5ae7-4021-be3d-b5c081e3b8d7",
-      "last_modified": 1562025500918
-    },
-    {
       "schema": 1562025497127,
       "derHash": "/CJFvlncZGHUEZw6Bu2+5NKIVWvYjEeeMO1fPoFhZGk=",
       "subject": "CN=MPG CA - G02,O=Max-Planck-Gesellschaft,L=Muenchen,ST=Bayern,C=DE",
@@ -42373,24 +42427,6 @@
       "last_modified": 1562025378352
     },
     {
-      "schema": 1562025376125,
-      "derHash": "lItxEa9C9UbVec/1ziveyCE03ZkUhCvdsMUocutgTjk=",
-      "subject": "CN=SSL.com SSL Intermediate CA ECC R2,O=SSL Corp,L=Houston,ST=Texas,C=US",
-      "subjectDN": "MG8xCzAJBgNVBAYTAlVTMQ4wDAYDVQQIDAVUZXhhczEQMA4GA1UEBwwHSG91c3RvbjERMA8GA1UECgwIU1NMIENvcnAxKzApBgNVBAMMIlNTTC5jb20gU1NMIEludGVybWVkaWF0ZSBDQSBFQ0MgUjI=",
-      "whitelist": false,
-      "attachment": {
-        "hash": "29138ba36283c37133babfb45ad6da91b908056c4bc777229a9b6114c29bb9d7",
-        "size": 1264,
-        "filename": "zGgA4OU4DjJdvpRYUqbi5Vh2g9W5Oc_PgKihy9mkLsE=.pem",
-        "location": "security-state-staging/intermediates/583bc538-020a-40af-92a9-40c3653a90e8.pem",
-        "mimetype": "application/x-pem-file"
-      },
-      "pubKeyHash": "zGgA4OU4DjJdvpRYUqbi5Vh2g9W5Oc/PgKihy9mkLsE=",
-      "crlite_enrolled": true,
-      "id": "a0acdb7c-e477-4e0c-8f54-b838e76497f5",
-      "last_modified": 1562025376857
-    },
-    {
       "schema": 1562025375368,
       "derHash": "O8UYVgQK1/9mg6qFoNNPnqaAzSPDfLigQjsPiaJEBbk=",
       "subject": "CN=ACCVCA-120,OU=PKIACCV,O=ACCV,C=ES",
@@ -48169,24 +48205,6 @@
       "last_modified": 1562024771677
     },
     {
-      "schema": 1562024767927,
-      "derHash": "UnpgsCq/OkpVGcT2L7vVYOMDQHTu7IuHmaqTaGk/420=",
-      "subject": "CN=SSL.com RSA SSL subCA,O=SSL Corporation,L=Houston,ST=Texas,C=US",
-      "subjectDN": "MGkxCzAJBgNVBAYTAlVTMQ4wDAYDVQQIDAVUZXhhczEQMA4GA1UEBwwHSG91c3RvbjEYMBYGA1UECgwPU1NMIENvcnBvcmF0aW9uMR4wHAYDVQQDDBVTU0wuY29tIFJTQSBTU0wgc3ViQ0E=",
-      "whitelist": false,
-      "attachment": {
-        "hash": "19883ec948ba65cabab87774d50633120945ef053a62f8362d2e09b43597fe1a",
-        "size": 2292,
-        "filename": "7LcB5Z8ATVz4rcQtIY5xJir8_-F3e_HPi8IDdCnjCaE=.pem",
-        "location": "security-state-staging/intermediates/23914bfd-6f12-4a9d-8c1a-a2c9e445a1bf.pem",
-        "mimetype": "application/x-pem-file"
-      },
-      "pubKeyHash": "7LcB5Z8ATVz4rcQtIY5xJir8/+F3e/HPi8IDdCnjCaE=",
-      "crlite_enrolled": true,
-      "id": "b976a3a6-3c96-4aca-9c5f-fc654e3c4f6c",
-      "last_modified": 1562024768658
-    },
-    {
       "schema": 1562024767188,
       "derHash": "cx09nPqgYUh6HXFEWkL2ffCvyipsLS+Y/3s84RKx9Wg=",
       "subject": "CN=Let's Encrypt Authority X3,O=Let's Encrypt,C=US",
@@ -50509,24 +50527,6 @@
       "last_modified": 1562023920713
     },
     {
-      "schema": 1562023919206,
-      "derHash": "zJ9yVE/2F8FM6+goMZSnDx6Jgc8WPVo/2NzP2EbV3Bo=",
-      "subject": "CN=NetLock OnlineSSL (Class Online) Tanúsítványkiadó,OU=Tanúsítványkiadók (Certification Services),O=NetLock Kft.,L=Budapest,C=HU",
-      "subjectDN": "MIGwMQswCQYDVQQGEwJIVTERMA8GA1UEBwwIQnVkYXBlc3QxFTATBgNVBAoMDE5ldExvY2sgS2Z0LjE3MDUGA1UECwwuVGFuw7pzw610dsOhbnlraWFkw7NrIChDZXJ0aWZpY2F0aW9uIFNlcnZpY2VzKTE+MDwGA1UEAww1TmV0TG9jayBPbmxpbmVTU0wgKENsYXNzIE9ubGluZSkgVGFuw7pzw610dsOhbnlraWFkw7M=",
-      "whitelist": false,
-      "attachment": {
-        "hash": "72ae8f0a0087c7b13f79d2f02193b9bca142172f3053cad4b927af716cd0534a",
-        "size": 2190,
-        "filename": "He6eOdoX1CHCLhtg75AtdDdI18-x-VfWOYW5_LCt5kk=.pem",
-        "location": "security-state-staging/intermediates/6bab6451-8f63-49f3-a556-455c6b868bd1.pem",
-        "mimetype": "application/x-pem-file"
-      },
-      "pubKeyHash": "He6eOdoX1CHCLhtg75AtdDdI18+x+VfWOYW5/LCt5kk=",
-      "crlite_enrolled": true,
-      "id": "ca8f61c9-fe67-45a0-8bc2-f0a8348e2cdb",
-      "last_modified": 1562023919950
-    },
-    {
       "schema": 1562023917707,
       "derHash": "2GoYtfdpUrc26Jots/D9+QcHEUYBFLagjWScpieTXJY=",
       "subject": "CN=COMODO SHA-256 Client Authentication and Secure Email CA 2,O=COMODO CA Limited,L=Salford,ST=Greater Manchester,C=GB",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/services/sync/modules/engines/bookmarks.js firefox-trunk-95.0~a1~hg20211020r596404/services/sync/modules/engines/bookmarks.js
--- firefox-trunk-95.0~a1~hg20211017r596111/services/sync/modules/engines/bookmarks.js	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/services/sync/modules/engines/bookmarks.js	2021-10-20 19:28:36.000000000 +0000
@@ -809,6 +809,7 @@
         "bookmark-added",
         "bookmark-removed",
         "bookmark-moved",
+        "bookmark-tags-changed",
         "bookmark-time-changed",
         "bookmark-title-changed",
         "bookmark-url-changed",
@@ -827,6 +828,7 @@
         "bookmark-added",
         "bookmark-removed",
         "bookmark-moved",
+        "bookmark-tags-changed",
         "bookmark-time-changed",
         "bookmark-title-changed",
         "bookmark-url-changed",
@@ -886,6 +888,7 @@
         case "bookmark-removed":
         case "bookmark-moved":
         case "bookmark-guid-changed":
+        case "bookmark-tags-changed":
         case "bookmark-time-changed":
         case "bookmark-title-changed":
         case "bookmark-url-changed":
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/servo/components/style/custom_properties.rs firefox-trunk-95.0~a1~hg20211020r596404/servo/components/style/custom_properties.rs
--- firefox-trunk-95.0~a1~hg20211017r596111/servo/components/style/custom_properties.rs	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/servo/components/style/custom_properties.rs	2021-10-20 19:28:36.000000000 +0000
@@ -71,10 +71,24 @@
     make_variable!(atom!("safe-area-inset-right"), get_safearea_inset_right),
 ];
 
+fn get_titlebar_radius(device: &Device) -> VariableValue {
+    VariableValue::pixel(device.titlebar_radius())
+}
+
+static CHROME_ENVIRONMENT_VARIABLES: [EnvironmentVariable; 1] = [
+    make_variable!(atom!("-moz-gtk-csd-titlebar-radius"), get_titlebar_radius),
+];
+
 impl CssEnvironment {
     #[inline]
     fn get(&self, name: &Atom, device: &Device) -> Option<VariableValue> {
-        let var = ENVIRONMENT_VARIABLES.iter().find(|var| var.name == *name)?;
+        if let Some(var) = ENVIRONMENT_VARIABLES.iter().find(|var| var.name == *name) {
+            return Some((var.evaluator)(device));
+        }
+        if !device.is_chrome_document() {
+            return None;
+        }
+        let var = CHROME_ENVIRONMENT_VARIABLES.iter().find(|var| var.name == *name)?;
         Some((var.evaluator)(device))
     }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/servo/components/style/gecko/media_features.rs firefox-trunk-95.0~a1~hg20211020r596404/servo/components/style/gecko/media_features.rs
--- firefox-trunk-95.0~a1~hg20211017r596111/servo/components/style/gecko/media_features.rs	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/servo/components/style/gecko/media_features.rs	2021-10-20 19:28:35.000000000 +0000
@@ -651,7 +651,7 @@
 /// to support new types in these entries and (2) ensuring that either
 /// nsPresContext::MediaFeatureValuesChanged is called when the value that
 /// would be returned by the evaluator function could change.
-pub static MEDIA_FEATURES: [MediaFeatureDescription; 60] = [
+pub static MEDIA_FEATURES: [MediaFeatureDescription; 59] = [
     feature!(
         atom!("width"),
         AllowsRanges::Yes,
@@ -891,7 +891,6 @@
     lnf_int_feature!(atom!("-moz-swipe-animation-enabled"), SwipeAnimationEnabled),
     lnf_int_feature!(atom!("-moz-gtk-csd-available"), GTKCSDAvailable),
     lnf_int_feature!(atom!("-moz-gtk-csd-hide-titlebar-by-default"), GTKCSDHideTitlebarByDefault),
-    lnf_int_feature!(atom!("-moz-gtk-csd-transparent-background"), GTKCSDTransparentBackground),
     lnf_int_feature!(atom!("-moz-gtk-csd-minimize-button"), GTKCSDMinimizeButton),
     lnf_int_feature!(atom!("-moz-gtk-csd-maximize-button"), GTKCSDMaximizeButton),
     lnf_int_feature!(atom!("-moz-gtk-csd-close-button"), GTKCSDCloseButton),
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/servo/components/style/gecko/media_queries.rs firefox-trunk-95.0~a1~hg20211020r596404/servo/components/style/gecko/media_queries.rs
--- firefox-trunk-95.0~a1~hg20211017r596111/servo/components/style/gecko/media_queries.rs	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/servo/components/style/gecko/media_queries.rs	2021-10-20 19:28:35.000000000 +0000
@@ -367,4 +367,17 @@
             bindings::Gecko_IsSupportedImageMimeType(mime_type.as_ptr(), mime_type.len() as u32)
         }
     }
+
+    /// Returns the gtk titlebar radius in CSS pixels.
+    pub fn titlebar_radius(&self) -> f32 {
+        unsafe {
+            bindings::Gecko_GetLookAndFeelFloat(bindings::LookAndFeel_FloatID::TitlebarRadius as i32)
+        }
+    }
+
+    /// Return whether the document is a chrome document.
+    #[inline]
+    pub fn is_chrome_document(&self) -> bool {
+        self.pref_sheet_prefs().mIsChrome
+    }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/SOURCE_CHANGESET firefox-trunk-95.0~a1~hg20211020r596404/SOURCE_CHANGESET
--- firefox-trunk-95.0~a1~hg20211017r596111/SOURCE_CHANGESET	2021-10-17 14:43:07.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/SOURCE_CHANGESET	2021-10-20 19:28:55.000000000 +0000
@@ -1 +1 @@
-650d84a601ba81d47e31d8fcb66a6d84642ae00d
\ No newline at end of file
+e45ba61007d1f8771179c0cc258166930acd75a5
\ No newline at end of file
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/config.yml firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/config.yml
--- firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/config.yml	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/config.yml	2021-10-20 19:28:36.000000000 +0000
@@ -65,6 +65,7 @@
         'M-f-spi-nw-1proc': 'Mochitest failures with networking on socket process without e10s'
         'M-f-swr': 'Mochitests failures with software webrender enabled'
         'M-f-swr-1proc': 'Mochitests failures with software webrender enabled without e10s'
+        'M-f-wayland': 'Mochitests failures with Wayland backend enabled'
         'MSI': 'Repack installers into MSIs'
         'MSIs': 'Signing of Repacked installers of MSIs'
         'MSIX': 'Repack into MSIX package'
@@ -587,7 +588,7 @@
             implementation: generic-worker
             os: windows
             worker-type: 'gecko-{alias}'
-        win10-64-2004(|-gpu):
+        win10-64-2004(|-gpu|-ssd):
             provisioner: 'gecko-t'
             implementation: generic-worker
             os: windows
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/packages/debian.yml firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/packages/debian.yml
--- firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/packages/debian.yml	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/packages/debian.yml	2021-10-20 19:28:35.000000000 +0000
@@ -55,9 +55,9 @@
     run:
         dist: buster
         tarball:
-            url: https://github.com/indygreg/python-zstandard/releases/download/0.15.2/zstandard-0.15.2.tar.gz
-            sha256: 52de08355fd5cfb3ef4533891092bb96229d43c2069703d4aff04fdbedf9c92f
-        pre-build-command: debchange -v 0.15.2-1.deb10moz --distribution buster "Mozilla backport for buster"
+            url: https://github.com/indygreg/python-zstandard/releases/download/0.16.0/zstandard-0.16.0.tar.gz
+            sha256: eaae2d3e8fdf8bfe269628385087e4b648beef85bb0c187644e7df4fb0fe9046
+        pre-build-command: debchange -v 0.16.0-1.deb10moz --distribution buster "Mozilla backport for buster"
         name: python-zstandard
 
 deb11-python-zstandard:
@@ -68,9 +68,9 @@
         using: debian-package
         dist: bullseye
         tarball:
-            url: https://github.com/indygreg/python-zstandard/releases/download/0.15.2/zstandard-0.15.2.tar.gz
-            sha256: 52de08355fd5cfb3ef4533891092bb96229d43c2069703d4aff04fdbedf9c92f
-        pre-build-command: debchange -v 0.15.2-1.deb11moz --distribution bullseye "Mozilla backport for buster"
+            url: https://github.com/indygreg/python-zstandard/releases/download/0.16.0/zstandard-0.16.0.tar.gz
+            sha256: eaae2d3e8fdf8bfe269628385087e4b648beef85bb0c187644e7df4fb0fe9046
+        pre-build-command: debchange -v 0.16.0-1.deb11moz --distribution bullseye "Mozilla backport for buster"
         name: python-zstandard
 
 deb8-gcc-7:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/packages/ubuntu.yml firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/packages/ubuntu.yml
--- firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/packages/ubuntu.yml	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/packages/ubuntu.yml	2021-10-20 19:28:36.000000000 +0000
@@ -34,10 +34,10 @@
         symbol: Ub18(python-zstandard)
     run:
         tarball:
-            url: https://github.com/indygreg/python-zstandard/releases/download/0.15.2/zstandard-0.15.2.tar.gz
-            sha256: 52de08355fd5cfb3ef4533891092bb96229d43c2069703d4aff04fdbedf9c92f
+            url: https://github.com/indygreg/python-zstandard/releases/download/0.16.0/zstandard-0.16.0.tar.gz
+            sha256: eaae2d3e8fdf8bfe269628385087e4b648beef85bb0c187644e7df4fb0fe9046
         name: python-zstandard
-        pre-build-command: debchange -v 0.15.2-1.ub18moz --distribution bionic "Mozilla backport for bionic"
+        pre-build-command: debchange -v 0.16.0-1.ub18moz --distribution bionic "Mozilla backport for bionic"
 
 ub18-mercurial:
     description: "Modern Mercurial for Ubuntu bionic"
@@ -59,11 +59,11 @@
         symbol: Ub20(python-zstandard)
     run:
         tarball:
-            url: https://github.com/indygreg/python-zstandard/releases/download/0.15.2/zstandard-0.15.2.tar.gz
-            sha256: 52de08355fd5cfb3ef4533891092bb96229d43c2069703d4aff04fdbedf9c92f
+            url: https://github.com/indygreg/python-zstandard/releases/download/0.16.0/zstandard-0.16.0.tar.gz
+            sha256: eaae2d3e8fdf8bfe269628385087e4b648beef85bb0c187644e7df4fb0fe9046
         name: python-zstandard
         dist: focal
-        pre-build-command: debchange -v 0.15.2-1.ub20moz --distribution bionic "Mozilla backport for focal"
+        pre-build-command: debchange -v 0.16.0-1.ub20moz --distribution bionic "Mozilla backport for focal"
 
 ub20-mercurial:
     description: "Modern Mercurial for Ubuntu focal"
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/test/mochitest.yml firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/test/mochitest.yml
--- firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/test/mochitest.yml	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/test/mochitest.yml	2021-10-20 19:28:36.000000000 +0000
@@ -10,12 +10,6 @@
             android-em-7.*: geckoview-androidTest.apk
             android-hw.*: geckoview-androidTest.apk
             default: null
-    variants:
-        by-test-platform:
-            linux.*64/debug: ['fission', 'wayland', 'socketprocess_networking']
-            linux.*64-qr/debug: ['webrender-sw', 'fission', 'wayland', 'socketprocess_networking']
-            android-em-7.0-x86_64-qr/debug: ['webrender-sw', 'fission']
-            default: ['fission']
     tier:
         by-variant:
             fission(-xorigin)?:
@@ -55,12 +49,12 @@
     schedules-component: mochitest-plain
     loopback-video: true
     virtualization: virtual
-
     variants:
-        by-test-platform:
-            linux1804-64-qr/debug: ['webrender-sw', 'fission', 'fission-xorigin', 'wayland', 'socketprocess_networking']
-            android-em-7.0-x86_64-qr/debug: ['webrender-sw', 'fission', 'fission-xorigin']
-            default: ['fission', 'fission-xorigin']
+        - fission
+        - fission-xorigin
+        - socketprocess_networking
+        - wayland
+        - webrender-sw
     run-on-projects:
         by-variant:
             fission:
@@ -76,6 +70,19 @@
                     (linux.*64|macosx.*64|windows10-64-2004)(-shippable)?-qr/(opt|debug): ['trunk']
                     linux.*64-ccov-qr/opt: ['mozilla-central']
                     default: []
+            socketprocess_networking:
+                by-test-platform:
+                    linux1804-64-qr/debug: built-projects
+                    default: []
+            wayland:
+                by-test-platform:
+                    linux1804-64-qr/debug: built-projects
+                    default: []
+            webrender-sw:
+                by-test-platform:
+                    android-em-7.0-x86_64-qr/debug: built-projects
+                    linux1804-64-qr/debug: built-projects
+                    default: []
             default:
                 by-test-platform:
                     .*-tsan-qr/opt: ['trunk']
@@ -118,10 +125,30 @@
     test-manifest-loader: default  # ensure we don't run with manifest-scheduling
     loopback-video: true
     e10s: false
+    variants:
+        - fission
+        - socketprocess_networking
+        - wayland
+        - webrender-sw
     run-on-projects:
-        by-test-platform:
-            .*-tsan-qr/opt: ['trunk']
-            default: built-projects
+        by-variant:
+            socketprocess_networking:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            wayland:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            webrender-sw:
+                by-test-platform:
+                    android-em-7.0-x86_64-qr/debug: built-projects
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            default:
+                by-test-platform:
+                    .*-tsan-qr/opt: ['trunk']
+                    default: built-projects
     mozharness:
         mochitest-flavor: a11y
 
@@ -133,12 +160,11 @@
     schedules-component: mochitest-browser-chrome
     loopback-video: true
     variants:
-        by-test-platform:
-            linux.*64(-shippable)?-qr/opt: ['webrender-sw', 'webrender-sw-fission', 'webrender-sw-a11y-checks', 'webrender-sw-wayland']
-            linux.*64(-asan|-ccov|-devedition|-tsan)-qr/opt: ['webrender-sw', 'webrender-sw-fission']
-            linux.*64-qr/debug: ['webrender-sw', 'webrender-sw-fission', 'webrender-sw-wayland', 'socketprocess_networking']
-            windows10-64-2004-qr/debug: ['webrender-sw', 'fission']
-            default: ['fission']
+        - fission
+        - webrender-sw
+        - webrender-sw-a11y-checks
+        - webrender-sw-fission
+        - webrender-sw-wayland
     run-on-projects:
         by-variant:
             fission:
@@ -150,13 +176,17 @@
                     linux.*64(-asan)?-qr/(opt|debug): ['all']
                     linux.*64-tsan-qr/opt: ['trunk']
                     linux.*64-shippable-qr/opt: ['release']
-                    linux.*64-ccov-qr/opt: []
-                    default: built-projects
+                    linux.*64(-shippable)?-qr/opt: built-projects
+                    linux.*64-devedition-qr/opt: built-projects
+                    windows10-64-2004-qr/debug: built-projects
+                    default: []
+            webrender-sw-a11y-checks: []  # run-on-projects defined in variant config
             webrender-sw-fission:
                 by-test-platform:
                     linux.*64(-asan|-shippable)?-qr/(opt|debug): ['trunk']
                     linux.*64-ccov-qr/opt: ['mozilla-central']
                     default: []
+            webrender-sw-wayland: []
             default:
                 by-test-platform:
                     linux.*-qr/.*: []
@@ -218,7 +248,27 @@
     chunks: 2
     max-run-time: 2700
     e10s: true
-    run-on-projects: ['mozilla-central']
+    variants:
+        - fission
+        - socketprocess_networking
+        - wayland
+        - webrender-sw
+    run-on-projects:
+        by-variant:
+            socketprocess_networking:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            wayland:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            webrender-sw:
+                by-test-platform:
+                    android-em-7.0-x86_64-qr/debug: built-projects
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            default: ['mozilla-central']
     mozharness:
         mochitest-flavor: browser
         chunked: true
@@ -244,6 +294,12 @@
     treeherder-symbol: M(ss)
     loopback-video: true
     test-manifest-loader: null  # don't load tests in the taskgraph
+    variants:
+        by-test-platform:
+            linux.*64/debug: ['fission', 'wayland', 'socketprocess_networking']
+            linux.*64-qr/debug: ['webrender-sw', 'fission', 'wayland', 'socketprocess_networking']
+            android-em-7.0-x86_64-qr/debug: ['webrender-sw', 'fission']
+            default: ['fission']
     run-on-projects:
         by-variant:
             fission: []
@@ -265,10 +321,30 @@
     treeherder-symbol: M(c)
     schedules-component: mochitest-chrome
     loopback-video: true
+    variants:
+        - fission
+        - socketprocess_networking
+        - wayland
+        - webrender-sw
     run-on-projects:
-        by-test-platform:
-            .*-tsan-qr/opt: ['trunk']
-            default: built-projects
+        by-variant:
+            socketprocess_networking:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            wayland:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            webrender-sw:
+                by-test-platform:
+                    android-em-7.0-x86_64-qr/debug: built-projects
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            default:
+                by-test-platform:
+                    .*-tsan-qr/opt: ['trunk']
+                    default: built-projects
     chunks:
         by-test-platform:
             .*(-ccov|-qr).*/.*: 3
@@ -295,18 +371,36 @@
     treeherder-symbol: M(dt)
     loopback-video: true
     variants:
-        by-test-platform:
-            linux.*64(-shippable)?-qr/opt: ['fission', 'a11y-checks', 'wayland']
-            linux.*64-qr/debug: ['webrender-sw', 'fission', 'wayland', 'socketprocess_networking']
-            default: ['fission']
+        - a11y-checks
+        - fission
+        - socketprocess_networking
+        - wayland
+        - webrender-sw
     run-on-projects:
         by-variant:
+            a11y-checks:
+                by-test-platform:
+                    linux.*64(-shippable)?-qr/opt: built-projects
+                    default: []
             fission:
                 by-test-platform:
                     linux.*64(-shippable)?-qr/(opt|debug): ['trunk']
                     windows10-64-2004(-shippable)?-qr/(opt|debug): ['trunk']
                     linux.*64-ccov-qr/opt: ["mozilla-central"]
                     default: []
+            socketprocess_networking:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            wayland:
+                by-test-platform:
+                    linux.*64-ccov-qr/opt: []
+                    linux.*64(-shippable)?-qr/(opt|debug): built-projects
+                    default: []
+            webrender-sw:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
             default:
                 by-test-platform:
                     .*-tsan-qr/opt: ['trunk']
@@ -352,6 +446,12 @@
     treeherder-symbol: M(gpu)
     schedules-component: mochitest-plain
     loopback-video: true
+    variants:
+        by-test-platform:
+            linux.*64/debug: ['fission', 'wayland', 'socketprocess_networking']
+            linux.*64-qr/debug: ['webrender-sw', 'fission', 'wayland', 'socketprocess_networking']
+            android-em-7.0-x86_64-qr/debug: ['webrender-sw', 'fission']
+            default: ['fission']
     run-on-projects:
         by-variant:
             fission: []
@@ -391,6 +491,12 @@
     loopback-video: true
     virtualization: virtual-with-gpu
     e10s: true
+    variants:
+        by-test-platform:
+            linux.*64/debug: ['fission', 'wayland', 'socketprocess_networking']
+            linux.*64-qr/debug: ['webrender-sw', 'fission', 'wayland', 'socketprocess_networking']
+            android-em-7.0-x86_64-qr/debug: ['webrender-sw', 'fission']
+            default: ['fission']
     run-on-projects:
         by-variant:
             fission: []
@@ -427,6 +533,13 @@
             macosx.*64-ccov.*/.*: 7200
             linux.*64-tsan-qr/opt: 7200
             default: 5400
+    variants:
+        - fission
+        - fission-webgl-ipc
+        - socketprocess
+        - wayland
+        - webgl-ipc
+        - webrender-sw
     run-on-projects:
         by-variant:
             fission:
@@ -446,21 +559,30 @@
                     default: []
             socketprocess:
                 by-test-platform:
-                    .*-tsan-qr/opt: ['trunk']
-                    windows10-64-2004-asan-qr/opt: ['trunk']
-                    android-hw-.*(?<!-shippable)(-qr)?/opt: ['autoland']
-                    android-hw-.*-arm7.*/(?:debug)?: ['trunk', 'mozilla-beta', 'mozilla-release']
-                    android-em-7.0-x86_64-qr/debug-isolated-process: []
-                    windows10-aarch64-qr/.*: ['mozilla-central', 'mozilla-beta', 'mozilla-release']
-                    (linux|windows10-64-2004|macos)(?!.*-qr).*: []
-                    default: built-projects
+                    android-em-7.0-x86_64-qr/debug: ['autoland', 'mozilla-central']
+                    android-hw-.*-aarch64-qr/debug: built-projects
+                    linux.*64(-asan|-devedition|-shippable)?-qr/(opt|debug): built-projects
+                    linux.*64-tsan-qr/opt: ['autoland', 'mozilla-central']
+                    macosx.*-64(-devedition|-shippable)?-qr/(opt|debug): built-projects
+                    windows10-(32|64)-2004(-devedition|-shippable)?-qr/(opt|debug): built-projects
+                    windows10-64-2004-asan-qr/opt: ['autoland', 'mozilla-central']
+                    default: []
+            wayland:
+                by-test-platform:
+                    linux.*64-qr/debug: ['autoland', 'mozilla-central']
+                    default: []
             webgl-ipc:
                 by-test-platform:
-                    .*-tsan-qr/opt: ['trunk']
-                    windows10-64-2004-asan-qr/opt: ['trunk']
-                    (linux.*64|windows10-64-2004)(-shippable)?-qr/(opt|debug): ['trunk']
-                    (linux|windows10-64-2004|macos)(?!.*-qr).*: []
-                    default: built-projects
+                    linux.*64(-shippable|-asan|-tsan)?-qr/opt: ['autoland', 'mozilla-central']
+                    macosx.*64(-shippable)?-qr/(opt|debug): ['autoland', 'mozilla-central']
+                    windows10-(32|64)-2004(-shippable)?-qr/(opt|debug): ['autoland', 'mozilla-central']
+                    windows10-64-2004-asan-qr/opt: ['autoland', 'mozilla-central']
+                    default: []
+            webrender-sw:
+                by-test-platform:
+                    android-em-7.0-x86_64-qr/debug: ['autoland', 'mozilla-central']
+                    linux1804-64-qr/debug: ['autoland', 'mozilla-central']
+                    default: []
             default:
                 by-test-platform:
                     android-hw-.*/opt: []
@@ -472,18 +594,6 @@
                     (android|linux|windows10-64-2004|macos)(?!.*-qr).*: []
                     windows10-aarch64-qr/.*: ['mozilla-central', 'mozilla-beta', 'mozilla-release']
                     default: built-projects
-    variants:
-        by-test-platform:
-            android-em-7.0-x86_64-qr/debug: ['webrender-sw', 'socketprocess', 'fission']
-            android-em.*-qr.*: ['fission', 'fission-webgl-ipc', 'webgl-ipc']
-            android-.*/opt: []
-            android.*: ['socketprocess']
-            .*-ccov-qr.*/.*: []
-            windows10-aarch64-qr/.*: []
-            (linux|windows10-64-2004|macos)(?!.*-qr).*: []
-            linux1804-64-qr/debug: ['webrender-sw', 'fission', 'fission-webgl-ipc', 'socketprocess', 'wayland']
-            (?!android-hw).*-qr.*: ['fission', 'fission-webgl-ipc', 'socketprocess', 'webgl-ipc']
-            default: ['fission', 'fission-webgl-ipc', 'socketprocess', 'webgl-ipc']
     loopback-video: true
     instance-size:
         by-test-platform:
@@ -532,6 +642,12 @@
         name: mochitest-media
     loopback-video: true
     allow-software-gl-layers: false
+    variants:
+        by-test-platform:
+            linux.*64/debug: ['fission', 'wayland', 'socketprocess_networking']
+            linux.*64-qr/debug: ['webrender-sw', 'fission', 'wayland', 'socketprocess_networking']
+            android-em-7.0-x86_64-qr/debug: ['webrender-sw', 'fission']
+            default: ['fission']
     run-on-projects: ['mozilla-central']
     tier: 3
     chunks:
@@ -571,6 +687,12 @@
     max-run-time: 5400
     allow-software-gl-layers: false
     tier: 2
+    variants:
+        by-test-platform:
+            linux.*64/debug: ['fission', 'wayland', 'socketprocess_networking']
+            linux.*64-qr/debug: ['webrender-sw', 'fission', 'wayland', 'socketprocess_networking']
+            android-em-7.0-x86_64-qr/debug: ['webrender-sw', 'fission']
+            default: ['fission']
     run-on-projects:
         by-variant:
             fission:
@@ -613,14 +735,6 @@
     treeherder-symbol: M(gl1c)
     schedules-component: mochitest-plain
     virtualization: virtual-with-gpu
-    variants:
-        by-test-platform:
-            .*-ccov.*/.*: []
-            android.*: []
-            linux.*64-qr/debug: ['fission', 'fission-webgl-ipc', 'webrender-sw', 'webgl-ipc', 'wayland']
-            (linux.*64|macosx.*64|windows10-64-2004)(-shippable)?-qr/(debug|opt): ['fission', 'fission-webgl-ipc', 'webgl-ipc']
-            linux.*64-asan-qr/opt: ['fission', 'fission-webgl-ipc', 'webgl-ipc']
-            default: ['webgl-ipc']
     e10s: true
     test-manifest-loader: null  # don't load tests in the taskgraph
     loopback-video: true
@@ -628,12 +742,45 @@
         by-test-platform:
             macosx.*64-ccov.*/.*: 7200
             default: 1800
+    variants:
+        - fission
+        - fission-webgl-ipc
+        - wayland
+        - webgl-ipc
+        - webrender-sw
     run-on-projects:
-        by-test-platform:
-            .*-tsan-qr/opt: ['trunk']
-            android-hw-.*(?<!-shippable)(-qr)?/opt: ['mozilla-central', 'mozilla-beta', 'mozilla-release']
-            android-hw.*aarch.*-shippable-qr/opt: ['mozilla-central']
-            default: built-projects
+        by-variant:
+            fission:
+                by-test-platform:
+                    linux.*64-asan-qr/opt: built-projects
+                    (linux.*64|macosx.*64|windows10-64-2004)(-shippable)?-qr/(debug|opt): built-projects
+                    default: []
+            fission-webgl-ipc:
+                by-test-platform:
+                    linux.*64-asan-qr/opt: built-projects
+                    (linux.*64|macosx.*64|windows10-64-2004)(-shippable)?-qr/(debug|opt): built-projects
+                    default: []
+            webgl-ipc:
+                by-test-platform:
+                    .*-ccov.*: []
+                    linux.*-64.*: ["trunk"]
+                    mac.*: ["trunk"]
+                    win.*: ["trunk"]
+                    default: []
+            wayland:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            webrender-sw:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            default:
+                by-test-platform:
+                    .*-tsan-qr/opt: ['trunk']
+                    android-hw-.*(?<!-shippable)(-qr)?/opt: ['mozilla-central', 'mozilla-beta', 'mozilla-release']
+                    android-hw.*aarch.*-shippable-qr/opt: ['mozilla-central']
+                    default: built-projects
     # Bug 1296733: llvmpipe with mesa 9.2.1 lacks thread safety
     allow-software-gl-layers: false
     mozharness:
@@ -646,16 +793,6 @@
     treeherder-symbol: M(gl1e)
     schedules-component: mochitest-plain
     virtualization: virtual-with-gpu
-    variants:
-        by-test-platform:
-            .*-ccov.*/.*: []
-            android.*: []
-            linux.*64-qr/debug: ['fission', 'fission-webgl-ipc', 'webrender-sw', 'webgl-ipc', 'wayland']
-            linux.*64(-shippable)?-qr/opt: ['fission', 'fission-webgl-ipc', 'webgl-ipc', 'wayland']
-            linux.*64-asan/opt: ['fission-webgl-ipc', 'webgl-ipc']
-            windows10-64-2004-shippable-qr/(opt|debug): ['fission', 'fission-webgl-ipc', 'webgl-ipc']
-            windows10-64-2004-qr/(opt|debug): ['fission', 'fission-webgl-ipc']
-            default: ['webgl-ipc']
     chunks:
         by-test-platform:
             android.*: 2
@@ -664,12 +801,46 @@
     test-manifest-loader: null  # don't load tests in the taskgraph
     loopback-video: true
     max-run-time: 2700
+    variants:
+        - fission
+        - fission-webgl-ipc
+        - wayland
+        - webgl-ipc
+        - webrender-sw
     run-on-projects:
-        by-test-platform:
-            .*-tsan-qr/opt: ['trunk']
-            android-hw-.*(?<!-shippable)(-qr)?/opt: ['mozilla-central', 'mozilla-beta', 'mozilla-release']
-            android-hw.*aarch.*-shippable-qr/opt: ['mozilla-central']
-            default: built-projects
+        by-variant:
+            fission:
+                by-test-platform:
+                    linux.*64(-shippable)?-qr/(opt|debug): built-projects
+                    windows10-64-2004(-shippable)?-qr/(opt|debug): built-projects
+                    default: []
+            fission-webgl-ipc:
+                by-test-platform:
+                    linux.*64(-shippable)?-qr/(opt|debug): built-projects
+                    windows10-64-2004(-shippable)?-qr/(opt|debug): built-projects
+                    default: []
+            wayland:
+                by-test-platform:
+                    linux.*64(-shippable)?-qr/(opt|debug): built-projects
+                    default: []
+            webgl-ipc:
+                by-test-platform:
+                    .*-ccov.*: []
+                    linux.*-64.*: ["trunk"]
+                    mac.*: ["trunk"]
+                    windows10-64-2004-qr/(opt|debug): []
+                    win.*: ["trunk"]
+                    default: []
+            webrender-sw:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            default:
+                by-test-platform:
+                    .*-tsan-qr/opt: ['trunk']
+                    android-hw-.*(?<!-shippable)(-qr)?/opt: ['mozilla-central', 'mozilla-beta', 'mozilla-release']
+                    android-hw.*aarch.*-shippable-qr/opt: ['mozilla-central']
+                    default: built-projects
     # Bug 1296733: llvmpipe with mesa 9.2.1 lacks thread safety
     allow-software-gl-layers: false
     mozharness:
@@ -683,14 +854,6 @@
     treeherder-symbol: M(gl2c)
     schedules-component: mochitest-plain
     virtualization: virtual-with-gpu
-    variants:
-        by-test-platform:
-            .*-ccov.*/.*: []
-            android.*: []
-            linux.*64-qr/debug: ['fission', 'fission-webgl-ipc', 'webrender-sw', 'webgl-ipc', 'wayland']
-            linux.*64(-shippable)?(-asan)?-qr/opt: ['fission', 'fission-webgl-ipc', 'webgl-ipc', 'wayland']
-            windows10-64-2004(-shippable)?-qr/(opt|debug): ['fission', 'fission-webgl-ipc', 'webgl-ipc']
-            default: ['webgl-ipc']
     chunks:
         by-test-platform:
             android.*: 2
@@ -699,12 +862,45 @@
     test-manifest-loader: null  # don't load tests in the taskgraph
     loopback-video: true
     max-run-time: 1800
+    variants:
+        - fission
+        - fission-webgl-ipc
+        - wayland
+        - webgl-ipc
+        - webrender-sw
     run-on-projects:
-        by-test-platform:
-            .*-tsan-qr/opt: ['trunk']
-            android-hw-.*(?<!-shippable)(-qr)?/opt: ['mozilla-central', 'mozilla-beta', 'mozilla-release']
-            android-hw.*aarch.*-shippable-qr/opt: ['mozilla-central']
-            default: built-projects
+        by-variant:
+            fission:
+                by-test-platform:
+                    linux.*64(-shippable|-asan)?-qr/(opt|debug): built-projects
+                    windows10-64-2004(-shippable)?-qr/(opt|debug): built-projects
+                    default: []
+            fission-webgl-ipc:
+                by-test-platform:
+                    linux.*64(-shippable|-asan)?-qr/(opt|debug): built-projects
+                    windows10-64-2004(-shippable)?-qr/(opt|debug): built-projects
+                    default: []
+            wayland:
+                by-test-platform:
+                    linux.*64(-shippable|-asan)?-qr/(opt|debug): built-projects
+                    default: []
+            webgl-ipc:
+                by-test-platform:
+                    .*-ccov.*/.*: []
+                    linux.*-64.*: ["trunk"]
+                    mac.*: ["trunk"]
+                    win.*: ["trunk"]
+                    default: []
+            webrender-sw:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            default:
+                by-test-platform:
+                    .*-tsan-qr/opt: ['trunk']
+                    android-hw-.*(?<!-shippable)(-qr)?/opt: ['mozilla-central', 'mozilla-beta', 'mozilla-release']
+                    android-hw.*aarch.*-shippable-qr/opt: ['mozilla-central']
+                    default: built-projects
     # Bug 1296733: llvmpipe with mesa 9.2.1 lacks thread safety
     allow-software-gl-layers: false
     mozharness:
@@ -717,13 +913,39 @@
     schedules-component: mochitest-plain
     virtualization: virtual-with-gpu
     variants:
-        by-test-platform:
-            .*-ccov.*/.*: []
-            android.*: []
-            linux.*64-qr/debug: ['fission', 'fission-webgl-ipc', 'webrender-sw', 'webgl-ipc', 'wayland']
-            linux.*64(-shippable)?-(qr|asan)?/opt: ['fission', 'fission-webgl-ipc', 'webgl-ipc', 'wayland']
-            windows10-64-2004(-shippable)?-qr/(opt|debug): ['fission', 'fission-webgl-ipc', 'webgl-ipc']
-            default: ['webgl-ipc']
+        - fission
+        - fission-webgl-ipc
+        - webgl-ipc
+        - webrender-sw
+        - wayland
+    run-on-projects:
+        by-variant:
+            fission:
+                by-test-platform:
+                    linux.*64(-shippable)?-qr/(opt|debug): built-projects
+                    windows10-64-2004(-shippable)?-qr/(opt|debug): built-projects
+                    default: []
+            fission-webgl-ipc:
+                by-test-platform:
+                    linux.*64(-shippable)?-qr/(opt|debug): built-projects
+                    windows10-64-2004(-shippable)?-qr/(opt|debug): built-projects
+                    default: []
+            wayland:
+                by-test-platform:
+                    linux.*64(-shippable|-asan)?-qr/(opt|debug): built-projects
+                    default: []
+            webgl-ipc:
+                by-test-platform:
+                    .*ccov.*/.*: []
+                    linux.*-64.*: ["trunk"]
+                    mac.*: ["trunk"]
+                    win.*: ["trunk"]
+                    default: []
+            webrender-sw:
+                by-test-platform:
+                    linux.*64-qr/debug: built-projects
+                    default: []
+            default: built-projects
     chunks: 4
     e10s: true
     test-manifest-loader: null  # don't load tests in the taskgraph
@@ -741,14 +963,12 @@
     description: "Mochitest webgl2-deqp run"
     treeherder-symbol: M(gl2d)
     schedules-component: mochitest-plain
-    run-on-projects: []  # Don't run this for now.
     virtualization: virtual-with-gpu
     variants:
-        by-test-platform:
-            .*-ccov.*/.*: []
-            android.*: []
-            linux.*64-qr/debug: ['webrender-sw', 'webgl-ipc', 'wayland']
-            default: ['webgl-ipc']
+        - wayland
+        - webgl-ipc
+        - webrender-sw
+    run-on-projects: []  # Don't run this for now.
     chunks: 4
     e10s: true
     loopback-video: true
@@ -768,6 +988,12 @@
     virtualization: virtual-with-gpu
     e10s: true
     loopback-video: true
+    variants:
+        by-test-platform:
+            linux.*64/debug: ['fission', 'wayland', 'socketprocess_networking']
+            linux.*64-qr/debug: ['webrender-sw', 'fission', 'wayland', 'socketprocess_networking']
+            android-em-7.0-x86_64-qr/debug: ['webrender-sw', 'fission']
+            default: ['fission']
     run-on-projects:
         by-variant:
             fission:
@@ -797,6 +1023,12 @@
         name: mochitest-remote
     treeherder-symbol: M(remote)
     loopback-video: true
+    variants:
+        by-test-platform:
+            linux.*64/debug: ['fission', 'wayland', 'socketprocess_networking']
+            linux.*64-qr/debug: ['webrender-sw', 'fission', 'wayland', 'socketprocess_networking']
+            android-em-7.0-x86_64-qr/debug: ['webrender-sw', 'fission']
+            default: ['fission']
     run-on-projects:
         by-variant:
             fission:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/test/talos.yml firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/test/talos.yml
--- firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/test/talos.yml	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/test/talos.yml	2021-10-20 19:28:36.000000000 +0000
@@ -559,12 +559,20 @@
             (linux1804-64|windows10-64|macosx1015-64).*-qr.*: [webgl-ipc, webrender-sw]
             default: []
     run-on-projects:
-        by-test-platform:
-            windows.*-32.*: []
-            macosx1014.*: []
-            (linux|windows10-64|macos)(?!.*shippable).*: []
-            (linux|windows10-64|macos)(?!.*-qr).*: []
-            default: [mozilla-beta, trunk]
+        by-variant:
+            webgl-ipc:
+                by-test-platform:
+                    linux.*-64.*: ["trunk"]
+                    mac.*: ["trunk"]
+                    win.*: ["trunk"]
+                    default: []
+            default:
+                by-test-platform:
+                    windows.*-32.*: []
+                    macosx1014.*: []
+                    (linux|windows10-64|macos)(?!.*shippable).*: []
+                    (linux|windows10-64|macos)(?!.*-qr).*: []
+                    default: [mozilla-beta, trunk]
     max-run-time: 2100
     mozharness:
         extra-options:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/test/test-sets.yml firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/test/test-sets.yml
--- firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/ci/test/test-sets.yml	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/ci/test/test-sets.yml	2021-10-20 19:28:36.000000000 +0000
@@ -258,8 +258,8 @@
     - web-platform-tests-reftest
     - web-platform-tests-print-reftest
     - web-platform-tests-wdspec
-    # - jittest  # Bug 1733505
-    # - xpcshell  # Bug 1733505
+    - jittest
+    - xpcshell
 
 windows10-64-2004-failure-tests:
     - mochitest-browser-chrome-failures
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/docker/debian10-test-iris/install_iris_deps.sh firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/docker/debian10-test-iris/install_iris_deps.sh
--- firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/docker/debian10-test-iris/install_iris_deps.sh	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/docker/debian10-test-iris/install_iris_deps.sh	2021-10-20 19:28:36.000000000 +0000
@@ -50,7 +50,7 @@
 mkdir -p /setup
 cd /setup
 
-wget http://www.leptonica.org/source/leptonica-1.76.0.tar.gz
+wget https://github.com/DanBloomberg/leptonica/releases/download/1.76.0/leptonica-1.76.0.tar.gz
 tar xopf leptonica-1.76.0.tar.gz
 cd leptonica-1.76.0
 ./configure && make && make install
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/gecko_taskgraph/transforms/tests.py firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/gecko_taskgraph/transforms/tests.py
--- firefox-trunk-95.0~a1~hg20211017r596111/taskcluster/gecko_taskgraph/transforms/tests.py	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/taskcluster/gecko_taskgraph/transforms/tests.py	2021-10-20 19:28:36.000000000 +0000
@@ -164,12 +164,12 @@
         "virtual-with-gpu": "win10-64-2004-gpu",
     },
     "windows10-64-2004-ccov": {
-        "virtual": "win10-64-2004",
-        "virtual-with-gpu": "win10-64-2004-gpu",
+        "virtual": "win10-64-2004-ssd",
+        "virtual-with-gpu": "win10-64-2004-ssd",
     },
     "windows10-64-2004-ccov-qr": {
-        "virtual": "win10-64-2004",
-        "virtual-with-gpu": "win10-64-2004-gpu",
+        "virtual": "win10-64-2004-ssd",
+        "virtual-with-gpu": "win10-64-2004-ssd",
     },
     "windows10-64-2004-devedition": {
         "virtual": "win10-64-2004",
@@ -430,16 +430,6 @@
         # TODO: After 2021-05-01, verify this variant is still needed.
         "description": "{description} with WebGL IPC process enabled",
         "suffix": "gli",
-        "replace": {
-            "run-on-projects": {
-                "by-test-platform": {
-                    "linux.*-64.*": ["trunk"],
-                    "mac.*": ["trunk"],
-                    "win.*": ["trunk"],
-                    "default": [],
-                },
-            },
-        },
         "merge": {
             "mozharness": {
                 "extra-options": [
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/geckodriver/CHANGES.md firefox-trunk-95.0~a1~hg20211020r596404/testing/geckodriver/CHANGES.md
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/geckodriver/CHANGES.md	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/geckodriver/CHANGES.md	2021-10-20 19:28:36.000000000 +0000
@@ -8,6 +8,10 @@
 
 ### Known problems
 
+- geckodriver restricts connections to local IP addresses. This can interfere
+  with deployments in which geckodriver is running on a different network node
+  to the tests e.g. some container or virtual-machine based setups.
+
 - _macOS 10.15 (Catalina) and later:_
 
   Due to the requirement from Apple that all programs must be
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/geckodriver/marionette/src/common.rs firefox-trunk-95.0~a1~hg20211020r596404/testing/geckodriver/marionette/src/common.rs
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/geckodriver/marionette/src/common.rs	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/geckodriver/marionette/src/common.rs	2021-10-20 19:28:36.000000000 +0000
@@ -135,7 +135,6 @@
 
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 pub struct Window {
-    pub name: String,
     pub handle: String,
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/geckodriver/src/marionette.rs firefox-trunk-95.0~a1~hg20211020r596404/testing/geckodriver/src/marionette.rs
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/geckodriver/src/marionette.rs	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/geckodriver/src/marionette.rs	2021-10-20 19:28:36.000000000 +0000
@@ -1469,7 +1469,6 @@
 impl ToMarionette<Window> for SwitchToWindowParameters {
     fn to_marionette(&self) -> WebDriverResult<Window> {
         Ok(Window {
-            name: self.handle.clone(),
             handle: self.handle.clone(),
         })
     }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/mochitest/dynamic/getMyDirectory.sjs firefox-trunk-95.0~a1~hg20211020r596404/testing/mochitest/dynamic/getMyDirectory.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/mochitest/dynamic/getMyDirectory.sjs	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/mochitest/dynamic/getMyDirectory.sjs	2021-10-20 19:28:36.000000000 +0000
@@ -1,8 +1,6 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var file;
-  getObjectState("SERVER_ROOT", function(serverRoot)
-  {
+  getObjectState("SERVER_ROOT", function(serverRoot) {
     var ref = request.getHeader("Referer").split("?")[0];
     // 8 is "https://".length which is the longest string before the host.
     var pathStart = ref.indexOf("/", 8) + 1;
@@ -11,5 +9,5 @@
   });
 
   response.setHeader("Content-Type", "text/plain", false);
-  response.write(file.path.substr(0, file.path.length-1));
+  response.write(file.path.substr(0, file.path.length - 1));
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/perfdocs/generated/raptor.rst firefox-trunk-95.0~a1~hg20211020r596404/testing/perfdocs/generated/raptor.rst
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/perfdocs/generated/raptor.rst	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/perfdocs/generated/raptor.rst	2021-10-20 19:28:35.000000000 +0000
@@ -1950,6 +1950,7 @@
    * **playback**: mitmproxy
    * **playback pageset manifest**: mitm6-linux-firefox-cnn.manifest
    * **playback version**: 6.0.2
+   * **preferences**: {"media.autoplay.default": 5, "media.autoplay.ask-permission": true, "media.autoplay.blocking_policy": 1, "media.autoplay.block-webaudio": true, "media.allowed-to-play.enabled": false, "media.block-autoplay-until-in-foreground": true}
    * **secondary url**: `<https://www.cnn.com/weather>`__
    * **test url**: `<https://www.cnn.com/2021/03/22/weather/climate-change-warm-waters-lake-michigan/index.html>`__
    * **type**: pageload
@@ -3311,9 +3312,10 @@
    * **page cycles**: 25
    * **page timeout**: 60000
    * **playback**: mitmproxy
-   * **playback pageset manifest**: mitm5-linux-firefox-live-office.manifest
-   * **playback version**: 5.1.1
-   * **test url**: `<https://office.live.com/start/Word.aspx?omkt=en-US>`__
+   * **playback pageset manifest**: mitm6-linux-firefox-live-office.manifest
+   * **playback version**: 6.0.2
+   * **secondary url**: `<https://www.office.com/>`__
+   * **test url**: `<https://www.office.com/launch/word>`__
    * **type**: pageload
    * **unit**: ms
    * **use live sites**: false
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/profiles/reftest/user.js firefox-trunk-95.0~a1~hg20211020r596404/testing/profiles/reftest/user.js
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/profiles/reftest/user.js	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/profiles/reftest/user.js	2021-10-20 19:28:36.000000000 +0000
@@ -98,3 +98,5 @@
 user_pref("toolkit.telemetry.initDelay", 99999999);
 // Setting this pref to true for usercss reftests, since it relies on userContent.css
 user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
+// Use a light color-scheme unless explicitly overriden.
+user_pref("layout.css.prefers-color-scheme.content-override", 1);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/profiles/web-platform/user.js firefox-trunk-95.0~a1~hg20211020r596404/testing/profiles/web-platform/user.js
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/profiles/web-platform/user.js	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/profiles/web-platform/user.js	2021-10-20 19:28:37.000000000 +0000
@@ -67,3 +67,5 @@
 // Enable blocking access to storage from tracking resources by default.
 // We don't want to run WPT using BEHAVIOR_REJECT_TRACKER_AND_PARTITION_FOREIGN (5 - aka Dynamic First Party Isolation) yet.
 user_pref("network.cookie.cookieBehavior", 4);
+// Force a light color scheme unless explicitly overriden by pref.
+user_pref("layout.css.prefers-color-scheme.content-override", 1);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/raptor/raptor/tests/tp6/desktop/browsertime-tp6.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/raptor/raptor/tests/tp6/desktop/browsertime-tp6.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/raptor/raptor/tests/tp6/desktop/browsertime-tp6.ini	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/raptor/raptor/tests/tp6/desktop/browsertime-tp6.ini	2021-10-20 19:28:35.000000000 +0000
@@ -47,6 +47,12 @@
 secondary_url = https://www.cnn.com/weather
 playback_version = 6.0.2
 playback_pageset_manifest = mitm6-linux-firefox-cnn.manifest
+preferences = {"media.autoplay.default": 5,
+              "media.autoplay.ask-permission": true,
+              "media.autoplay.blocking_policy": 1,
+              "media.autoplay.block-webaudio": true,
+              "media.allowed-to-play.enabled": false,
+              "media.block-autoplay-until-in-foreground": true}
 
 [ebay]
 test_url = https://www.ebay.com/
@@ -130,8 +136,10 @@
 playback_pageset_manifest = mitm6-linux-firefox-nytimes.manifest
 
 [office]
-test_url = https://office.live.com/start/Word.aspx?omkt=en-US
-playback_pageset_manifest = mitm5-linux-firefox-live-office.manifest
+test_url = https://www.office.com/launch/word
+secondary_url = https://www.office.com/
+playback_version = 6.0.2
+playback_pageset_manifest = mitm6-linux-firefox-live-office.manifest
 
 [outlook]
 test_url = https://outlook.live.com/mail/inbox
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/raptor/raptor/tooltool-manifests/playback/mitm5-linux-firefox-live-office.manifest firefox-trunk-95.0~a1~hg20211020r596404/testing/raptor/raptor/tooltool-manifests/playback/mitm5-linux-firefox-live-office.manifest
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/raptor/raptor/tooltool-manifests/playback/mitm5-linux-firefox-live-office.manifest	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/raptor/raptor/tooltool-manifests/playback/mitm5-linux-firefox-live-office.manifest	1970-01-01 00:00:00.000000000 +0000
@@ -1,9 +0,0 @@
-[
-  {
-    "algorithm": "sha512",
-    "digest": "36cd7c235b116a39a11082fe14b89434aace368cc7304654852e2f077ac9b024f7c663ff6f81c5012aca4fcf04d4b0f96e5abd1d5bb3f3a1f7ae0113ddf75c01",
-    "filename": "mitm5-linux-firefox-live-office.zip",
-    "size": 11077445,
-    "visibility": "public"
-  }
-]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/raptor/raptor/tooltool-manifests/playback/mitm6-linux-firefox-cnn.manifest firefox-trunk-95.0~a1~hg20211020r596404/testing/raptor/raptor/tooltool-manifests/playback/mitm6-linux-firefox-cnn.manifest
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/raptor/raptor/tooltool-manifests/playback/mitm6-linux-firefox-cnn.manifest	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/raptor/raptor/tooltool-manifests/playback/mitm6-linux-firefox-cnn.manifest	2021-10-20 19:28:35.000000000 +0000
@@ -1,9 +1,9 @@
 [
   {
-    "filename": "mitm6-linux-firefox-cnn.zip",
-    "size": 51994767,
+    "size": 52350354,
+    "visibility": "public",
+    "digest": "0992fb48eec8a53d4af213f5c5015af5de34dfbb057fecf223d7202f19599e1eb41a58257932f616493d100e6b75da2cdc7745eb673ed6b7579953ba3c4eb879",
     "algorithm": "sha512",
-    "digest": "0bfe6cbae34151fbfbf12185dedb15f9c00f7b026188e5797a94fb547c25b2cc5356367623368aac2442e956b8c131ee184b88a41365b34552737ee1ae6f980b",
-    "visibility": "public"
+    "filename": "mitm6-linux-firefox-cnn.zip"
   }
 ]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/raptor/raptor/tooltool-manifests/playback/mitm6-linux-firefox-live-office.manifest firefox-trunk-95.0~a1~hg20211020r596404/testing/raptor/raptor/tooltool-manifests/playback/mitm6-linux-firefox-live-office.manifest
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/raptor/raptor/tooltool-manifests/playback/mitm6-linux-firefox-live-office.manifest	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/raptor/raptor/tooltool-manifests/playback/mitm6-linux-firefox-live-office.manifest	2021-10-20 19:28:35.000000000 +0000
@@ -0,0 +1,9 @@
+[
+  {
+    "size": 12847002,
+    "visibility": "public",
+    "digest": "b73d097a1a8956ea22277d65565842e1a32f53a947f95ec09bf39cd80638bbeb66babdd8ff5a0f58a116c24b911e0f4e72472104a2eeafd42231515119d62a4f",
+    "algorithm": "sha512",
+    "filename": "mitm6-linux-firefox-office.zip"
+  }
+]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/specialpowers/content/SpecialPowersParent.jsm firefox-trunk-95.0~a1~hg20211020r596404/testing/specialpowers/content/SpecialPowersParent.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/specialpowers/content/SpecialPowersParent.jsm	2021-10-17 14:42:50.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/specialpowers/content/SpecialPowersParent.jsm	2021-10-20 19:28:37.000000000 +0000
@@ -412,6 +412,7 @@
     for (let pref of actions) {
       requiresRefresh =
         requiresRefresh ||
+        pref.name == "layout.css.prefers-color-scheme.content-override" ||
         pref.name.startsWith("ui.") ||
         pref.name.startsWith("browser.display.") ||
         pref.name.startsWith("font.");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-082.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-082.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-082.html.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-082.html.ini	2021-10-20 19:28:36.000000000 +0000
@@ -2,19 +2,23 @@
   [white-space:pre-wrap]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:pre-line]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:break-spaces]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:normal]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-126.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-126.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-126.html.ini	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-126.html.ini	2021-10-20 19:28:37.000000000 +0000
@@ -2,20 +2,24 @@
   [white-space:pre-wrap]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:pre-line]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:break-spaces]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:normal]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-127.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-127.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-127.html.ini	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-127.html.ini	2021-10-20 19:28:37.000000000 +0000
@@ -2,20 +2,24 @@
   [white-space:pre-wrap]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:pre-line]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:break-spaces]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:normal]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-128.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-128.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-128.html.ini	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/css/css-text/i18n/css3-text-line-break-baspglwj-128.html.ini	2021-10-20 19:28:37.000000000 +0000
@@ -2,20 +2,24 @@
   [white-space:pre-wrap]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:pre-line]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:break-spaces]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
   [white-space:normal]
     expected:
       if os == "android": PASS
+      if os == "win": PASS
       FAIL
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/css/css-text/word-break/word-break-normal-bo-000.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/css/css-text/word-break/word-break-normal-bo-000.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/css/css-text/word-break/word-break-normal-bo-000.html.ini	2021-10-17 14:42:51.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/css/css-text/word-break/word-break-normal-bo-000.html.ini	1970-01-01 00:00:00.000000000 +0000
@@ -1,3 +0,0 @@
-[word-break-normal-bo-000.html]
-  expected:
-    if (os == "win"): FAIL
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/mathml/relations/css-styling/color-001.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/mathml/relations/css-styling/color-001.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/mathml/relations/css-styling/color-001.html.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/mathml/relations/css-styling/color-001.html.ini	2021-10-20 19:28:37.000000000 +0000
@@ -1,4 +1,3 @@
 [color-001.html]
   expected:
     if webrender and not swgl and (os == "win") and (bits == 64) and not ccov: FAIL
-    if win10_2004 and ccov: FAIL  # Bug 1733368
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/mathml/relations/css-styling/color-002.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/mathml/relations/css-styling/color-002.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/mathml/relations/css-styling/color-002.html.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/mathml/relations/css-styling/color-002.html.ini	2021-10-20 19:28:36.000000000 +0000
@@ -1,4 +1,3 @@
 [color-002.html]
   expected:
     if webrender and not swgl and (os == "win") and (bits == 64) and not ccov: FAIL
-    if win10_2004 and ccov: FAIL   # Bug 1733368
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/mathml/relations/css-styling/color-003.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/mathml/relations/css-styling/color-003.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/mathml/relations/css-styling/color-003.html.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/mathml/relations/css-styling/color-003.html.ini	2021-10-20 19:28:37.000000000 +0000
@@ -1,4 +1,3 @@
 [color-003.html]
   expected:
     if webrender and not swgl and (os == "win") and (bits == 64) and not ccov: FAIL
-    if win10_2004 and ccov: FAIL
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/web-locks/mode-exclusive.tentative.https.any.js.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/web-locks/mode-exclusive.tentative.https.any.js.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/web-locks/mode-exclusive.tentative.https.any.js.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/web-locks/mode-exclusive.tentative.https.any.js.ini	1970-01-01 00:00:00.000000000 +0000
@@ -1,19 +0,0 @@
-[mode-exclusive.tentative.https.any.html]
-  [Requests for distinct resources can be granted]
-    expected: FAIL
-
-
-[mode-exclusive.tentative.https.any.worker.html]
-  [Requests for distinct resources can be granted]
-    expected: FAIL
-
-
-[mode-exclusive.tentative.https.any.serviceworker.html]
-  [Requests for distinct resources can be granted]
-    expected: FAIL
-
-
-[mode-exclusive.tentative.https.any.sharedworker.html]
-  [Requests for distinct resources can be granted]
-    expected: FAIL
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/web-locks/query-ordering.tentative.https.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/web-locks/query-ordering.tentative.https.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/web-locks/query-ordering.tentative.https.html.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/web-locks/query-ordering.tentative.https.html.ini	1970-01-01 00:00:00.000000000 +0000
@@ -1,4 +0,0 @@
-[query-ordering.tentative.https.html]
-  [Requests appear in state in order made.]
-    expected: FAIL
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/web-locks/query.tentative.https.any.js.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/web-locks/query.tentative.https.any.js.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/web-locks/query.tentative.https.any.js.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/web-locks/query.tentative.https.any.js.ini	1970-01-01 00:00:00.000000000 +0000
@@ -1,19 +0,0 @@
-[query.tentative.https.any.html]
-  expected:
-    if swgl and (os == "linux"): [OK, ERROR, CRASH]
-  [query() can observe a deadlock]
-    expected: FAIL
-
-  [query() reports different ids for held locks from different contexts]
-    expected: FAIL
-
-
-[query.tentative.https.any.worker.html]
-  expected:
-    if not swgl and debug and (os == "linux") and not fission: [OK, ERROR]
-    if swgl and (os == "linux"): [OK, CRASH]
-  [query() can observe a deadlock]
-    expected: FAIL
-
-  [query() reports different ids for held locks from different contexts]
-    expected: FAIL
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/web-locks/signal.tentative.https.any.js.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/web-locks/signal.tentative.https.any.js.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/web-locks/signal.tentative.https.any.js.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/web-locks/signal.tentative.https.any.js.ini	1970-01-01 00:00:00.000000000 +0000
@@ -1,83 +0,0 @@
-[signal.tentative.https.any.html]
-  expected: ERROR
-  [Abort after a timeout]
-    expected: FAIL
-
-  [Synchronously signaled abort]
-    expected: FAIL
-
-  [Abort signaled after lock released]
-    expected: NOTRUN
-
-  [Signal that is not aborted]
-    expected: FAIL
-
-  [Abort signaled after lock granted]
-    expected: TIMEOUT
-
-  [An aborted request results in AbortError]
-    expected: FAIL
-
-
-[signal.tentative.https.any.worker.html]
-  expected: TIMEOUT
-  [Abort after a timeout]
-    expected: FAIL
-
-  [Synchronously signaled abort]
-    expected: FAIL
-
-  [Abort signaled after lock released]
-    expected: NOTRUN
-
-  [Signal that is not aborted]
-    expected: FAIL
-
-  [Abort signaled after lock granted]
-    expected: TIMEOUT
-
-  [An aborted request results in AbortError]
-    expected: FAIL
-
-
-[signal.tentative.https.any.serviceworker.html]
-  expected: TIMEOUT
-  [Abort after a timeout]
-    expected: FAIL
-
-  [Synchronously signaled abort]
-    expected: FAIL
-
-  [Abort signaled after lock released]
-    expected: NOTRUN
-
-  [Signal that is not aborted]
-    expected: FAIL
-
-  [Abort signaled after lock granted]
-    expected: TIMEOUT
-
-  [An aborted request results in AbortError]
-    expected: FAIL
-
-
-[signal.tentative.https.any.sharedworker.html]
-  expected: TIMEOUT
-  [Abort after a timeout]
-    expected: FAIL
-
-  [Synchronously signaled abort]
-    expected: FAIL
-
-  [Abort signaled after lock released]
-    expected: NOTRUN
-
-  [Signal that is not aborted]
-    expected: FAIL
-
-  [Abort signaled after lock granted]
-    expected: TIMEOUT
-
-  [An aborted request results in AbortError]
-    expected: FAIL
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/web-locks/workers.tentative.https.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/web-locks/workers.tentative.https.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/web-locks/workers.tentative.https.html.ini	2021-10-17 14:42:53.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/web-locks/workers.tentative.https.html.ini	1970-01-01 00:00:00.000000000 +0000
@@ -1,3 +0,0 @@
-[workers.tentative.https.html]
-  expected:
-    if swgl and (os == "linux"): [OK, ERROR]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/webrtc/RTCRtpReceiver-getSynchronizationSources.https.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/webrtc/RTCRtpReceiver-getSynchronizationSources.https.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/webrtc/RTCRtpReceiver-getSynchronizationSources.https.html.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/webrtc/RTCRtpReceiver-getSynchronizationSources.https.html.ini	2021-10-20 19:28:36.000000000 +0000
@@ -1,58 +1,4 @@
 [RTCRtpReceiver-getSynchronizationSources.https.html]
   [[audio-only\] RTCRtpSynchronizationSource.voiceActivityFlag is a boolean]
     bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1525394
-    expected:
-      if (processor == "x86") and not debug: [FAIL, NOTRUN]
-      FAIL
-
-  [[audio\] getSynchronizationSources() eventually returns a non-empty list]
-    expected:
-      if (processor == "x86") and not debug: [PASS, TIMEOUT]
-
-  [[audio\] RTCRtpSynchronizationSource.timestamp is a number]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[audio\] RTCRtpSynchronizationSource.rtpTimestamp is a number [0, 2^32-1\]]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[audio\] getSynchronizationSources() does not contain SSRCs older than 10 seconds]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[audio\] RTCRtpSynchronizationSource.timestamp is comparable to performance.timeOrigin + performance.now()]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[audio\] RTCRtpSynchronizationSource.source is a number]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[video\] getSynchronizationSources() eventually returns a non-empty list]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[video\] RTCRtpSynchronizationSource.timestamp is a number]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[video\] RTCRtpSynchronizationSource.rtpTimestamp is a number [0, 2^32-1\]]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[video\] getSynchronizationSources() does not contain SSRCs older than 10 seconds]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[video\] RTCRtpSynchronizationSource.timestamp is comparable to performance.timeOrigin + performance.now()]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[video\] RTCRtpSynchronizationSource.source is a number]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
-
-  [[audio-only\] RTCRtpSynchronizationSource.audioLevel is a number [0, 1\]]
-    expected:
-      if (processor == "x86") and not debug: [PASS, NOTRUN]
+    expected: FAIL
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/webrtc/RTCRtpTransceiver-stop.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/webrtc/RTCRtpTransceiver-stop.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/webrtc/RTCRtpTransceiver-stop.html.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/webrtc/RTCRtpTransceiver-stop.html.ini	2021-10-20 19:28:37.000000000 +0000
@@ -1,7 +1,9 @@
 [RTCRtpTransceiver-stop.html]
   [If a transceiver is stopped, transceivers should end up in state stopped]
+    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1568296
     expected: FAIL
 
   [If a transceiver is stopped, transceivers, senders and receivers should disappear after offer/answer]
+    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1568296
     expected: FAIL
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/webrtc/simplecall.https.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/webrtc/simplecall.https.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/webrtc/simplecall.https.html.ini	2021-10-17 14:42:53.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/webrtc/simplecall.https.html.ini	1970-01-01 00:00:00.000000000 +0000
@@ -1,11 +0,0 @@
-[simplecall.https.html]
-  expected:
-    if (os == "linux") and not fission and not debug and (processor == "x86"): [OK, ERROR, TIMEOUT, CRASH]
-    if (os == "linux") and not fission and not debug and (processor == "x86_64"): [OK, TIMEOUT, ERROR, CRASH]
-    if (os == "linux") and fission: [OK, ERROR, CRASH]
-    if (os == "mac") and not debug: [OK, TIMEOUT]
-  [Can set up a basic WebRTC call.]
-    expected:
-      if (os == "linux") and not fission and not debug and (processor == "x86"): [PASS, TIMEOUT]
-      if (os == "linux") and not fission and not debug and (processor == "x86_64"): [PASS, TIMEOUT]
-      if (os == "mac") and not debug: [PASS, TIMEOUT]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/webrtc/simplecall-no-ssrcs.https.html.ini firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/webrtc/simplecall-no-ssrcs.https.html.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/meta/webrtc/simplecall-no-ssrcs.https.html.ini	2021-10-17 14:42:52.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/meta/webrtc/simplecall-no-ssrcs.https.html.ini	1970-01-01 00:00:00.000000000 +0000
@@ -1,4 +0,0 @@
-[simplecall-no-ssrcs.https.html]
-  expected:
-    if (os == "linux") and not debug and webrender and not fission: [OK, ERROR, CRASH]
-    if (os == "linux") and not debug and not webrender: [OK, ERROR, CRASH]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/tests/shadow-dom/focus/focus-method-delegatesFocus.html firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/tests/shadow-dom/focus/focus-method-delegatesFocus.html
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/tests/shadow-dom/focus/focus-method-delegatesFocus.html	2021-10-17 14:43:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/tests/shadow-dom/focus/focus-method-delegatesFocus.html	2021-10-20 19:28:45.000000000 +0000
@@ -283,5 +283,28 @@
   assert_equals(dom.outerShadow.activeElement, dom.innerHost);
   assert_equals(dom.innerShadow.activeElement, dom.innerShadowChild);
 }, 'focus() on host with delegatesFocus with another host with delegatesFocus and a focusable child');
+
+// Note that we use flat tree here however it might not be the behavior we end up
+// wanting, per https://github.com/whatwg/html/issues/7207
+test(() => {
+  // Structure:
+  // <div> host
+  //   #shadowRoot root delegatesFocus=true
+  //    <slot>
+  //      (slotted) <div>
+  //        <input #firstFocusable>
+  const host = document.createElement("div");
+  const slotted = document.createElement("div");
+  const firstFocusable = document.createElement("input");
+  slotted.appendChild(firstFocusable);
+  host.appendChild(slotted);
+
+  const root = host.attachShadow({mode: "open", delegatesFocus: true});
+  root.innerHTML = "<slot>";
+  document.body.appendChild(host);
+
+  host.focus();
+  assert_equals(document.activeElement, firstFocusable);
+}, "Focus() on host with delegatesFocus should focus the focusable child when it is a descendant of the slotted element");
 </script>
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/tests/web-locks/mode-mixed.tentative.https.any.js firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/tests/web-locks/mode-mixed.tentative.https.any.js
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/tests/web-locks/mode-mixed.tentative.https.any.js	2021-10-17 14:43:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/tests/web-locks/mode-mixed.tentative.https.any.js	2021-10-20 19:28:46.000000000 +0000
@@ -1,4 +1,5 @@
 // META: title=Web Locks API: Mixed Modes
+// META: script=resources/helpers.js
 // META: global=window,dedicatedworker,sharedworker,serviceworker
 
 'use strict';
@@ -43,3 +44,55 @@
     ['a-shared-1', 'a-shared-2', 'a-shared-3', 'b-exclusive', 'a-exclusive']);
 
 }, 'Lock requests are granted in order');
+
+promise_test(async t => {
+  const res = uniqueName(t);
+
+  let [promise, resolve] = makePromiseAndResolveFunc();
+
+  const exclusive = navigator.locks.request(res, () => promise);
+  for (let i = 0; i < 5; i++) {
+    requestLockAndHold(t, res, { mode: "shared" });
+  }
+
+  let answer = await navigator.locks.query();
+  assert_equals(answer.held.length, 1, "An exclusive lock is held");
+  assert_equals(answer.pending.length, 5, "Requests for shared locks are pending");
+  resolve();
+  await exclusive;
+
+  answer = await navigator.locks.query();
+  assert_equals(answer.held.length, 5, "Shared locks are held");
+  assert_true(answer.held.every(l => l.mode === "shared"), "All held locks are shared ones");
+}, 'Releasing exclusive lock grants multiple shared locks');
+
+promise_test(async t => {
+  const res = uniqueName(t);
+
+  let [sharedPromise, sharedResolve] = makePromiseAndResolveFunc();
+  let [exclusivePromise, exclusiveResolve] = makePromiseAndResolveFunc();
+
+  const sharedReleasedPromise = Promise.all(new Array(5).fill(0).map(
+    () => navigator.locks.request(res, { mode: "shared" }, () => sharedPromise))
+  );
+  const exclusiveReleasedPromise = navigator.locks.request(res, () => exclusivePromise);
+  for (let i = 0; i < 5; i++) {
+    requestLockAndHold(t, res, { mode: "shared" });
+  }
+
+  let answer = await navigator.locks.query();
+  assert_equals(answer.held.length, 5, "Shared locks are held");
+  assert_true(answer.held.every(l => l.mode === "shared"), "All held locks are shared ones");
+  sharedResolve();
+  await sharedReleasedPromise;
+
+  answer = await navigator.locks.query();
+  assert_equals(answer.held.length, 1, "An exclusive lock is held");
+  assert_equals(answer.held[0].mode, "exclusive");
+  exclusiveResolve();
+  await exclusiveReleasedPromise;
+
+  answer = await navigator.locks.query();
+  assert_equals(answer.held.length, 5, "The next shared locks are held");
+  assert_true(answer.held.every(l => l.mode === "shared"), "All held locks are shared ones");
+}, 'An exclusive lock between shared locks');
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/tests/web-locks/opaque-origin.tentative.https.html firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/tests/web-locks/opaque-origin.tentative.https.html
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/tests/web-locks/opaque-origin.tentative.https.html	2021-10-17 14:43:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/tests/web-locks/opaque-origin.tentative.https.html	2021-10-20 19:28:46.000000000 +0000
@@ -32,9 +32,19 @@
 const script = `
 <script>
   "use strict";
-  window.onmessage = async () => {
+  window.onmessage = async (ev) => {
     try {
-      await navigator.locks.request('name', lock => {});
+      switch (ev.data) {
+        case "request":
+          await navigator.locks.request('name', lock => {});
+          break;
+        case "query":
+          await navigator.locks.query();
+          break;
+        default:
+          window.parent.postMessage({result: "unexpected message"}, "*");
+          return;
+      }
       window.parent.postMessage({result: "no exception"}, "*");
     } catch (ex) {
       window.parent.postMessage({result: ex.name}, "*");
@@ -45,7 +55,7 @@
 
 promise_test(async t => {
   const iframe = await load_iframe(script);
-  iframe.contentWindow.postMessage({}, '*');
+  iframe.contentWindow.postMessage("request", '*');
   const message = await wait_for_message(iframe);
   assert_equals(message.result, 'no exception',
                 'navigator.locks.request() should not throw');
@@ -53,9 +63,25 @@
 
 promise_test(async t => {
   const iframe = await load_iframe(script, 'allow-scripts');
-  iframe.contentWindow.postMessage({}, '*');
+  iframe.contentWindow.postMessage("request", '*');
   const message = await wait_for_message(iframe);
   assert_equals(message.result, 'SecurityError',
                 'Exception should be SecurityError');
 }, 'navigator.locks.request() in sandboxed iframe should throw SecurityError');
+
+promise_test(async t => {
+  const iframe = await load_iframe(script);
+  iframe.contentWindow.postMessage("query", '*');
+  const message = await wait_for_message(iframe);
+  assert_equals(message.result, 'no exception',
+                'navigator.locks.request() should not throw');
+}, 'navigator.locks.query() in non-sandboxed iframe should not throw');
+
+promise_test(async t => {
+  const iframe = await load_iframe(script, 'allow-scripts');
+  iframe.contentWindow.postMessage("query", '*');
+  const message = await wait_for_message(iframe);
+  assert_equals(message.result, 'SecurityError',
+                'Exception should be SecurityError');
+}, 'navigator.locks.query() in sandboxed iframe should throw SecurityError');
 </script>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/tests/web-locks/resources/helpers.js firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/tests/web-locks/resources/helpers.js
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/tests/web-locks/resources/helpers.js	2021-10-17 14:43:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/tests/web-locks/resources/helpers.js	2021-10-20 19:28:46.000000000 +0000
@@ -57,4 +57,23 @@
     });
   };
 
+  /**
+   * Request a lock and hold it until the subtest ends.
+   * @param {*} t test runner object
+   * @param {string} name lock name
+   * @param {LockOptions=} options lock options
+   * @returns
+   */
+  self.requestLockAndHold = (t, name, options = {}) => {
+    return navigator.locks.request(name, options, () => {
+      return new Promise(resolve => t.add_cleanup(resolve));
+    });
+  };
+
+  self.makePromiseAndResolveFunc = () => {
+    let resolve;
+    const promise = new Promise(r => { resolve = r; });
+    return [promise, resolve];
+  };
+
 })();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/tests/web-locks/signal.tentative.https.any.js firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/tests/web-locks/signal.tentative.https.any.js
--- firefox-trunk-95.0~a1~hg20211017r596111/testing/web-platform/tests/web-locks/signal.tentative.https.any.js	2021-10-17 14:43:01.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/testing/web-platform/tests/web-locks/signal.tentative.https.any.js	2021-10-20 19:28:46.000000000 +0000
@@ -4,12 +4,6 @@
 
 'use strict';
 
-function makePromiseAndResolveFunc() {
-  let resolve;
-  const promise = new Promise(r => { resolve = r; });
-  return [promise, resolve];
-}
-
 promise_test(async t => {
   const res = uniqueName(t);
 
@@ -39,8 +33,7 @@
   const res = uniqueName(t);
 
   // Grab a lock and hold it until this subtest completes.
-  const never_settled = new Promise(resolve => t.add_cleanup(resolve));
-  navigator.locks.request(res, lock => never_settled);
+  requestLockAndHold(t, res);
 
   const controller = new AbortController();
 
@@ -68,8 +61,7 @@
   const res = uniqueName(t);
 
   // Grab a lock and hold it until this subtest completes.
-  const never_settled = new Promise(resolve => t.add_cleanup(resolve));
-  navigator.locks.request(res, lock => never_settled);
+  requestLockAndHold(t, res);
 
   const controller = new AbortController();
 
@@ -198,3 +190,19 @@
                 'Lock released promise should not reject');
 
 }, 'Abort signaled after lock released');
+
+promise_test(async t => {
+  const res = uniqueName(t);
+
+  const controller = new AbortController();
+  const first = requestLockAndHold(t, res, { signal: controller.signal });
+  const next = navigator.locks.request(res, () => "resolved");
+  controller.abort();
+
+  await promise_rejects_dom(t, "AbortError", first, "Request should abort");
+  assert_equals(
+    await next,
+    "resolved",
+    "The next request is processed after abort"
+  );
+}, "Abort should process the next pending lock request");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/alerts/test/image_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/alerts/test/image_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/alerts/test/image_server.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/alerts/test/image_server.sjs	2021-10-20 19:28:49.000000000 +0000
@@ -1,15 +1,20 @@
 const CC = Components.Constructor;
 
-Cu.import("resource://gre/modules/Timer.jsm");
+let { setTimeout } = ChromeUtils.import("resource://gre/modules/Timer.jsm");
 
-const LocalFile = CC("@mozilla.org/file/local;1", "nsIFile",
-                     "initWithPath");
+const LocalFile = CC("@mozilla.org/file/local;1", "nsIFile", "initWithPath");
 
-const FileInputStream = CC("@mozilla.org/network/file-input-stream;1",
-                           "nsIFileInputStream", "init");
-
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream", "setInputStream");
+const FileInputStream = CC(
+  "@mozilla.org/network/file-input-stream;1",
+  "nsIFileInputStream",
+  "init"
+);
+
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function handleRequest(request, response) {
   let params = parseQueryString(request.queryString);
@@ -21,9 +26,12 @@
   // loaded anonymously.
   if (params.has("c")) {
     let expectedValue = parseInt(params.get("c"), 10);
-    let actualValue = !request.hasHeader("Cookie") ? 0 :
-                      parseInt(request.getHeader("Cookie")
-                                      .replace(/^counter=(\d+)/, "$1"), 10);
+    let actualValue = !request.hasHeader("Cookie")
+      ? 0
+      : parseInt(
+          request.getHeader("Cookie").replace(/^counter=(\d+)/, "$1"),
+          10
+        );
     if (actualValue != expectedValue) {
       response.setStatusLine(request.httpVersion, 400, "Wrong counter value");
       return;
@@ -68,8 +76,8 @@
   file.append(name);
 
   let mimeType = Cc["@mozilla.org/uriloader/external-helper-app-service;1"]
-                   .getService(Ci.nsIMIMEService)
-                   .getTypeFromFile(file);
+    .getService(Ci.nsIMIMEService)
+    .getTypeFromFile(file);
 
   let fileStream = new FileInputStream(file, 1, 0, false);
   let binaryStream = new BinaryInputStream(fileStream);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/browser_staticPartition_CORS_preflight.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/browser_staticPartition_CORS_preflight.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/browser_staticPartition_CORS_preflight.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/browser_staticPartition_CORS_preflight.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-'use strict';
+"use strict";
 
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 
@@ -18,7 +18,8 @@
     response.setHeader(
       "Access-Control-Allow-Methods",
       request.getHeader("Access-Control-Request-Method"),
-      false);
+      false
+    );
     response.setHeader("Access-Control-Max-Age", "20", false);
 
     setState(token, token);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/browser_staticPartition_HSTS.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/browser_staticPartition_HSTS.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/browser_staticPartition_HSTS.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/browser_staticPartition_HSTS.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -4,14 +4,18 @@
 
 const IMG_BYTES = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAA" +
-  "DUlEQVQImWNgY2P7DwABOgESJhRQtgAAAABJRU5ErkJggg==");
+    "DUlEQVQImWNgY2P7DwABOgESJhRQtgAAAABJRU5ErkJggg=="
+);
 
 const PAGE = "<!DOCTYPE html><html><body><p>HSTS page</p></body></html>";
 
 function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, "200", "OK");
   if (request.queryString == "includeSub") {
-    response.setHeader("Strict-Transport-Security", "max-age=60; includeSubDomains");
+    response.setHeader(
+      "Strict-Transport-Security",
+      "max-age=60; includeSubDomains"
+    );
   } else {
     response.setHeader("Strict-Transport-Security", "max-age=60");
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/file_saveAsImage.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/file_saveAsImage.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/file_saveAsImage.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/file_saveAsImage.sjs	2021-10-20 19:28:49.000000000 +0000
@@ -1,7 +1,8 @@
 // small red image
 const IMAGE = atob(
   "iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12" +
-  "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==");
+    "P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+);
 
 function handleRequest(aRequest, aResponse) {
   aResponse.setStatusLine(aRequest.httpVersion, 200);
@@ -15,5 +16,5 @@
 
     aResponse.setHeader("Content-Type", "image/png", false);
     aResponse.write(IMAGE);
- }
+  }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/file_saveAsVideo.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/file_saveAsVideo.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/file_saveAsVideo.sjs	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/file_saveAsVideo.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,20 +1,21 @@
 const VIDEO = atob(
   "GkXfo49CgoR3ZWJtQoeBAkKFgQIYU4BnI0nOEU2bdKpNu" +
-  "4tTq4QVSalmU6yBL027i1OrhBZUrmtTrIGmTbuLU6uEHF" +
-  "O7a1OsgdEVSalm8k2ApWxpYmVibWwyIHYwLjkuNyArIGx" +
-  "pYm1hdHJvc2thMiB2MC45LjhXQZ5ta2NsZWFuIDAuMi41" +
-  "IGZyb20gTGF2ZjUyLjU3LjFzpJC/CoyJjSbckmOytS9Se" +
-  "y3cRImIQK9AAAAAAABEYYgEHiZDUAHwABZUrmumrqTXgQ" +
-  "FzxYEBnIEAIrWcg3VuZIaFVl9WUDiDgQHgh7CCAUC6gfA" +
-  "cU7trzbuMs4EAt4f3gQHxggEju42zggMgt4f3gQHxgrZd" +
-  "u46zggZAt4j3gQHxgwFba7uOs4IJYLeI94EB8YMCAR+7j" +
-  "rOCDIC3iPeBAfGDAqggH0O2dSBibueBAKNbiYEAAIDQdw" +
-  "CdASpAAfAAAAcIhYWIhYSIAIIb347n/c/Z0BPBfjv7f+I" +
-  "/6df275Wbh/XPuZ+qv9k58KrftA9tvkP+efiN/ovmd/if" +
-  "9L/ef2z+Xv+H/rv+39xD/N/zL+nfid71363e9X+pf6/+q" +
-  "+x7+W/0P/H/233Zf6n/Wv696APuDf0b+YdcL+2HsUfxr+" +
-  "gfP/91P+F/yH9K+H79Z/7j/Xvhj/VjVsvwHXt/n/qz9U/" +
-  "w749+c/g=");
+    "4tTq4QVSalmU6yBL027i1OrhBZUrmtTrIGmTbuLU6uEHF" +
+    "O7a1OsgdEVSalm8k2ApWxpYmVibWwyIHYwLjkuNyArIGx" +
+    "pYm1hdHJvc2thMiB2MC45LjhXQZ5ta2NsZWFuIDAuMi41" +
+    "IGZyb20gTGF2ZjUyLjU3LjFzpJC/CoyJjSbckmOytS9Se" +
+    "y3cRImIQK9AAAAAAABEYYgEHiZDUAHwABZUrmumrqTXgQ" +
+    "FzxYEBnIEAIrWcg3VuZIaFVl9WUDiDgQHgh7CCAUC6gfA" +
+    "cU7trzbuMs4EAt4f3gQHxggEju42zggMgt4f3gQHxgrZd" +
+    "u46zggZAt4j3gQHxgwFba7uOs4IJYLeI94EB8YMCAR+7j" +
+    "rOCDIC3iPeBAfGDAqggH0O2dSBibueBAKNbiYEAAIDQdw" +
+    "CdASpAAfAAAAcIhYWIhYSIAIIb347n/c/Z0BPBfjv7f+I" +
+    "/6df275Wbh/XPuZ+qv9k58KrftA9tvkP+efiN/ovmd/if" +
+    "9L/ef2z+Xv+H/rv+39xD/N/zL+nfid71363e9X+pf6/+q" +
+    "+x7+W/0P/H/233Zf6n/Wv696APuDf0b+YdcL+2HsUfxr+" +
+    "gfP/91P+F/yH9K+H79Z/7j/Xvhj/VjVsvwHXt/n/qz9U/" +
+    "w749+c/g="
+);
 
 function handleRequest(aRequest, aResponse) {
   aResponse.setStatusLine(aRequest.httpVersion, 200);
@@ -30,7 +31,8 @@
     aResponse.setHeader(
       "Cache-Control",
       "public, max-age=604800, immutable",
-      false);
+      false
+    );
     aResponse.write(VIDEO);
- }
+  }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/image.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/image.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/image.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/image.sjs	2021-10-20 19:28:49.000000000 +0000
@@ -1,7 +1,9 @@
 // A 1x1 PNG image.
 // Source: https://commons.wikimedia.org/wiki/File:1x1.png (Public Domain)
-const IMAGE = atob("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
-                   "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=");
+const IMAGE = atob(
+  "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
+    "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII="
+);
 
 function handleRequest(aRequest, aResponse) {
   aResponse.setStatusLine(aRequest.httpVersion, 200);
@@ -16,5 +18,5 @@
     aResponse.setHeader("Set-Cookie", "foopy=1");
     aResponse.setHeader("Content-Type", "image/png", false);
     aResponse.write(IMAGE);
- }
+  }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/redirect.sjs	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/redirect.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -2,7 +2,7 @@
   aResponse.setStatusLine(aRequest.httpVersion, 302);
 
   let query = aRequest.queryString;
-  let locations =  query.split("|");
+  let locations = query.split("|");
   let nextLocation = locations.shift();
   if (locations.length) {
     nextLocation += "?" + locations.join("|");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/referrer.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/referrer.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/referrer.sjs	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/referrer.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,20 +1,26 @@
 // A 1x1 PNG image.
 // Source: https://commons.wikimedia.org/wiki/File:1x1.png (Public Domain)
-const IMAGE = atob("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
-                   "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=");
-
-const IFRAME = "<!DOCTYPE html>\n" +
-               "<script>\n" +
-                 "onmessage = event => {\n" +
-                   "parent.postMessage(document.referrer, '*');\n" +
-                 "};\n" +
-               "</script>";
+const IMAGE = atob(
+  "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
+    "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII="
+);
+
+const IFRAME =
+  "<!DOCTYPE html>\n" +
+  "<script>\n" +
+  "onmessage = event => {\n" +
+  "parent.postMessage(document.referrer, '*');\n" +
+  "};\n" +
+  "</script>";
 
 function handleRequest(aRequest, aResponse) {
   aResponse.setStatusLine(aRequest.httpVersion, 200);
 
-  let key = aRequest.queryString.includes("what=script") ? "script" :
-            (aRequest.queryString.includes("what=image") ? "image" : "iframe");
+  let key = aRequest.queryString.includes("what=script")
+    ? "script"
+    : aRequest.queryString.includes("what=image")
+    ? "image"
+    : "iframe";
 
   if (aRequest.queryString.includes("result")) {
     aResponse.write(getState(key));
@@ -22,8 +28,8 @@
     return;
   }
 
-  if (aRequest.hasHeader('Referer')) {
-    let referrer = aRequest.getHeader('Referer');
+  if (aRequest.hasHeader("Referer")) {
+    let referrer = aRequest.getHeader("Referer");
     setState(key, referrer);
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/server.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/server.sjs	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/server.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,20 +1,20 @@
 function handleRequest(aRequest, aResponse) {
- if (aRequest.queryString.includes("redirect")) {
-   aResponse.setStatusLine(aRequest.httpVersion, 302);
-   if (aRequest.queryString.includes("redirect-checkonly")) {
-     aResponse.setHeader("Location", "server.sjs?checkonly");
-   } else {
-     aResponse.setHeader("Location", "server.sjs");
-   }
-   return;
- }
- aResponse.setStatusLine(aRequest.httpVersion, 200);
- if (aRequest.hasHeader('Cookie')) {
-   aResponse.write("cookie-present");
- } else {
-   if (!aRequest.queryString.includes("checkonly")) {
-     aResponse.setHeader("Set-Cookie", "foopy=1");
-   }
-   aResponse.write("cookie-not-present");
- }
+  if (aRequest.queryString.includes("redirect")) {
+    aResponse.setStatusLine(aRequest.httpVersion, 302);
+    if (aRequest.queryString.includes("redirect-checkonly")) {
+      aResponse.setHeader("Location", "server.sjs?checkonly");
+    } else {
+      aResponse.setHeader("Location", "server.sjs");
+    }
+    return;
+  }
+  aResponse.setStatusLine(aRequest.httpVersion, 200);
+  if (aRequest.hasHeader("Cookie")) {
+    aResponse.write("cookie-present");
+  } else {
+    if (!aRequest.queryString.includes("checkonly")) {
+      aResponse.setHeader("Set-Cookie", "foopy=1");
+    }
+    aResponse.write("cookie-not-present");
+  }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/subResources.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/subResources.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/antitracking/test/browser/subResources.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/antitracking/test/browser/subResources.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,7 +1,9 @@
 // A 1x1 PNG image.
 // Source: https://commons.wikimedia.org/wiki/File:1x1.png (Public Domain)
-const IMAGE = atob("iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
-                   "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=");
+const IMAGE = atob(
+  "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAA" +
+    "ACnej3aAAAAAXRSTlMAQObYZgAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII="
+);
 
 function handleRequest(aRequest, aResponse) {
   aResponse.setStatusLine(aRequest.httpVersion, 200);
@@ -14,7 +16,7 @@
     return;
   }
 
-  if (aRequest.hasHeader('Cookie')) {
+  if (aRequest.hasHeader("Cookie")) {
     let hints = parseInt(getState(key) || 0) + 1;
     setState(key, hints.toString());
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/backgroundhangmonitor/BackgroundHangMonitor.cpp firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/backgroundhangmonitor/BackgroundHangMonitor.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/backgroundhangmonitor/BackgroundHangMonitor.cpp	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/backgroundhangmonitor/BackgroundHangMonitor.cpp	2021-10-20 19:28:50.000000000 +0000
@@ -541,7 +541,7 @@
 
   // If the profiler is enabled, add a marker.
 #ifdef MOZ_GECKO_PROFILER
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled(mStackHelper.GetThreadId())) {
     struct HangMarker {
       static constexpr Span<const char> MarkerTypeName() {
         return MakeStringSpan("BHR-detected hang");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/browser/nsWebBrowser.cpp firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/browser/nsWebBrowser.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/browser/nsWebBrowser.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/browser/nsWebBrowser.cpp	2021-10-20 19:28:50.000000000 +0000
@@ -31,6 +31,7 @@
 #include "nsComponentManagerUtils.h"
 #include "nsDocShell.h"
 #include "nsServiceManagerUtils.h"
+#include "WindowRenderer.h"
 
 #include "mozilla/dom/Element.h"
 #include "mozilla/dom/BrowsingContext.h"
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/cleardata/tests/browser/file_cors_preflight.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/cleardata/tests/browser/file_cors_preflight.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/cleardata/tests/browser/file_cors_preflight.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/cleardata/tests/browser/file_cors_preflight.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -2,7 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-'use strict';
+"use strict";
 
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 
@@ -18,7 +18,8 @@
     response.setHeader(
       "Access-Control-Allow-Methods",
       request.getHeader("Access-Control-Request-Method"),
-      false);
+      false
+    );
     response.setHeader("Access-Control-Max-Age", "20", false);
 
     setState(token, token);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/extensions/ConduitsParent.jsm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/extensions/ConduitsParent.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/extensions/ConduitsParent.jsm	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/extensions/ConduitsParent.jsm	2021-10-20 19:28:50.000000000 +0000
@@ -184,7 +184,7 @@
     address.verified = this.verifyEnv(address);
     if (actor instanceof JSWindowActorParent) {
       address.frameId = WebNavigationFrames.getFrameId(actor.browsingContext);
-      address.url = actor.browsingContext.currentURI.spec;
+      address.url = actor.manager.documentURI?.spec;
     } else {
       // Background service worker contexts do not have an associated frame
       // and there is no browsingContext to retrieve the expected url from.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/extensions/test/mochitest/redirect_auto.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/extensions/test/mochitest/redirect_auto.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/extensions/test/mochitest/redirect_auto.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/extensions/test/mochitest/redirect_auto.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -14,7 +14,9 @@
     } else {
       response.setStatusLine(request.httpVersion, 302, "Moved Temporarily");
     }
-    let url = new URL(params.get("redirect_uri") || params.get("default_redirect"));
+    let url = new URL(
+      params.get("redirect_uri") || params.get("default_redirect")
+    );
     url.searchParams.set("access_token", "here ya go");
     response.setHeader("Location", url.href);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/extensions/test/mochitest/return_headers.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/extensions/test/mochitest/return_headers.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/extensions/test/mochitest/return_headers.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/extensions/test/mochitest/return_headers.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -17,4 +17,3 @@
 
   response.write(JSON.stringify(headers));
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/extensions/test/mochitest/slow_response.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/extensions/test/mochitest/slow_response.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/extensions/test/mochitest/slow_response.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/extensions/test/mochitest/slow_response.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -4,11 +4,17 @@
 
 /* eslint-disable no-unused-vars */
 
-Cu.import("resource://gre/modules/AppConstants.jsm");
+let { AppConstants } = ChromeUtils.import(
+  "resource://gre/modules/AppConstants.jsm"
+);
 
 const DELAY = AppConstants.DEBUG ? 4000 : 800;
 
-let nsTimer = Components.Constructor("@mozilla.org/timer;1", "nsITimer", "initWithCallback");
+let nsTimer = Components.Constructor(
+  "@mozilla.org/timer;1",
+  "nsITimer",
+  "initWithCallback"
+);
 
 let timer;
 function delay() {
@@ -52,4 +58,3 @@
 
   response.finish();
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/extensions/webidl-api/ExtensionEventListener.h firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/extensions/webidl-api/ExtensionEventListener.h
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/extensions/webidl-api/ExtensionEventListener.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/extensions/webidl-api/ExtensionEventListener.h	2021-10-20 19:28:50.000000000 +0000
@@ -155,7 +155,8 @@
 
  private:
   ~ExtensionListenerCallWorkerRunnable() {
-    NS_ReleaseOnMainThread(mPromiseResult.forget());
+    NS_ReleaseOnMainThread("~ExtensionListenerCallWorkerRunnable",
+                           mPromiseResult.forget());
     ReleaseArgsHolder();
     mListener = nullptr;
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/formautofill/FormAutofillHandler.jsm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/formautofill/FormAutofillHandler.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/formautofill/FormAutofillHandler.jsm	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/formautofill/FormAutofillHandler.jsm	2021-10-20 19:28:50.000000000 +0000
@@ -627,10 +627,7 @@
       data.flowId = this.flowId;
     }
     let condensedDetails = this.fieldDetails;
-    // This NIGHTLY_BUILD statement should be removed as part of Bug 1735562 once the feature is stable
-    if (AppConstants.NIGHTLY_BUILD) {
-      this._condenseMultipleCCNumberFields(condensedDetails);
-    }
+    this._condenseMultipleCCNumberFields(condensedDetails);
 
     condensedDetails.forEach(detail => {
       let element = detail.elementWeakRef.get();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/formautofill/FormAutofillHeuristics.jsm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/formautofill/FormAutofillHeuristics.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/formautofill/FormAutofillHeuristics.jsm	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/formautofill/FormAutofillHeuristics.jsm	2021-10-20 19:28:50.000000000 +0000
@@ -17,10 +17,7 @@
 const { FormAutofill } = ChromeUtils.import(
   "resource://autofill/FormAutofill.jsm"
 );
-// This AppConstants import can be removed as part of Bug 1735562
-const { AppConstants } = ChromeUtils.import(
-  "resource://gre/modules/AppConstants.jsm"
-);
+
 ChromeUtils.defineModuleGetter(
   this,
   "FormAutofillUtils",
@@ -226,9 +223,7 @@
       );
     }
     // This NIGHTLY_BUILD statement should be removed as part of Bug 1735562 once the feature is stable
-    if (AppConstants.NIGHTLY_BUILD) {
-      this._classifyMultipleCCNumberFields();
-    }
+    this._classifyMultipleCCNumberFields();
   }
 
   /**
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/httpsonlyerror/tests/browser/file_errorpage_timeout_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/httpsonlyerror/tests/browser/file_errorpage_timeout_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/httpsonlyerror/tests/browser/file_errorpage_timeout_server.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/httpsonlyerror/tests/browser/file_errorpage_timeout_server.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,7 +1,6 @@
 // Custom *.sjs file specifically for the needs of Bug 1657348
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   // avoid confusing cache behaviors
   response.setHeader("Cache-Control", "no-cache", false);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/nimbus/FeatureManifest.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/nimbus/FeatureManifest.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/nimbus/FeatureManifest.js	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/nimbus/FeatureManifest.js	2021-10-20 19:28:50.000000000 +0000
@@ -19,6 +19,11 @@
         description:
           "Used to activate only matching configurations that contain the value in `experiment`",
       },
+      extraParams: {
+        type: "json",
+        description:
+          "Query parameters values for search engine configurations.",
+      },
     },
   },
   urlbar: {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/normandy/test/unit/query_server.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/normandy/test/unit/query_server.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/normandy/test/unit/query_server.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/normandy/test/unit/query_server.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,5 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1", "nsIBinaryInputStream", "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 // Returns a JSON string containing the query string arguments and the
 // request body parsed as JSON.
@@ -20,7 +24,7 @@
   const body = String.fromCharCode.apply(null, bytes);
 
   // Write response body
-  const data = {queryString: {}, body: body ? JSON.parse(body) : {}};
+  const data = { queryString: {}, body: body ? JSON.parse(body) : {} };
   const params = request.queryString.split("&");
   for (const param of params) {
     const [key, value] = param.split("=");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/PasswordGenerator.jsm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/PasswordGenerator.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/PasswordGenerator.jsm	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/PasswordGenerator.jsm	2021-10-20 19:28:50.000000000 +0000
@@ -81,7 +81,13 @@
     for (const charClassString of requiredClasses) {
       password +=
         charClassString[this._randomUInt8Index(charClassString.length)];
-      allRequiredCharacters += charClassString;
+      if (Array.isArray(charClassString)) {
+        // Convert array into single string so that commas aren't
+        // concatenated with each character in the arbitrary character array.
+        allRequiredCharacters += charClassString.join("");
+      } else {
+        allRequiredCharacters += charClassString;
+      }
     }
 
     // Now fill the rest of the password with random characters.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/authenticate.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/authenticate.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/authenticate.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/authenticate.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   try {
     reallyHandleRequest(request, response);
   } catch (e) {
@@ -8,152 +7,200 @@
   }
 }
 
-
 function reallyHandleRequest(request, response) {
-  var match;
-  var requestAuth = true, requestProxyAuth = true;
+  let match;
+  let requestAuth = true,
+    requestProxyAuth = true;
 
   // Allow the caller to drive how authentication is processed via the query.
   // Eg, http://localhost:8888/authenticate.sjs?user=foo&realm=bar
   // The extra ? allows the user/pass/realm checks to succeed if the name is
   // at the beginning of the query string.
-  var query = "?" + request.queryString;
+  let query = "?" + request.queryString;
 
-  var expected_user = "", expected_pass = "", realm = "mochitest";
-  var proxy_expected_user = "", proxy_expected_pass = "", proxy_realm = "mochi-proxy";
-  var huge = false, plugin = false, anonymous = false, formauth = false;
-  var authHeaderCount = 1;
+  let expected_user = "",
+    expected_pass = "",
+    realm = "mochitest";
+  let proxy_expected_user = "",
+    proxy_expected_pass = "",
+    proxy_realm = "mochi-proxy";
+  let huge = false,
+    plugin = false,
+    anonymous = false,
+    formauth = false;
+  let authHeaderCount = 1;
   // user=xxx
   match = /[^_]user=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_user = match[1];
+  }
 
   // pass=xxx
   match = /[^_]pass=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_pass = match[1];
+  }
 
   // realm=xxx
   match = /[^_]realm=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     realm = match[1];
+  }
 
   // proxy_user=xxx
   match = /proxy_user=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_expected_user = match[1];
+  }
 
   // proxy_pass=xxx
   match = /proxy_pass=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_expected_pass = match[1];
+  }
 
   // proxy_realm=xxx
   match = /proxy_realm=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_realm = match[1];
+  }
 
   // huge=1
   match = /huge=1/.exec(query);
-  if (match)
+  if (match) {
     huge = true;
+  }
 
   // plugin=1
   match = /plugin=1/.exec(query);
-  if (match)
+  if (match) {
     plugin = true;
+  }
 
   // multiple=1
   match = /multiple=([^&]*)/.exec(query);
-  if (match)
-    authHeaderCount = match[1]+0;
+  if (match) {
+    authHeaderCount = match[1] + 0;
+  }
 
   // anonymous=1
   match = /anonymous=1/.exec(query);
-  if (match)
+  if (match) {
     anonymous = true;
+  }
 
   // formauth=1
   match = /formauth=1/.exec(query);
-  if (match)
+  if (match) {
     formauth = true;
+  }
 
   // Look for an authentication header, if any, in the request.
   //
   // EG: Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
-  // 
+  //
   // This test only supports Basic auth. The value sent by the client is
   // "username:password", obscured with base64 encoding.
 
-  var actual_user = "", actual_pass = "", authHeader, authPresent = false;
+  let actual_user = "",
+    actual_pass = "",
+    authHeader,
+    authPresent = false;
   if (request.hasHeader("Authorization")) {
     authPresent = true;
     authHeader = request.getHeader("Authorization");
     match = /Basic (.+)/.exec(authHeader);
-    if (match.length != 2)
-        throw new Error("Couldn't parse auth header: " + authHeader);
+    if (match.length != 2) {
+      throw new Error("Couldn't parse auth header: " + authHeader);
+    }
 
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
-    if (match.length != 3)
-        throw new Error("Couldn't decode auth header: " + userpass);
+    if (match.length != 3) {
+      throw new Error("Couldn't decode auth header: " + userpass);
+    }
     actual_user = match[1];
     actual_pass = match[2];
-  } 
+  }
 
-  var proxy_actual_user = "", proxy_actual_pass = "";
+  let proxy_actual_user = "",
+    proxy_actual_pass = "";
   if (request.hasHeader("Proxy-Authorization")) {
     authHeader = request.getHeader("Proxy-Authorization");
     match = /Basic (.+)/.exec(authHeader);
-    if (match.length != 2)
-        throw new Error("Couldn't parse auth header: " + authHeader);
+    if (match.length != 2) {
+      throw new Error("Couldn't parse auth header: " + authHeader);
+    }
 
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
-    if (match.length != 3)
-        throw new Error("Couldn't decode auth header: " + userpass);
+    if (match.length != 3) {
+      throw new Error("Couldn't decode auth header: " + userpass);
+    }
     proxy_actual_user = match[1];
     proxy_actual_pass = match[2];
   }
 
   // Don't request authentication if the credentials we got were what we
   // expected.
-  if (expected_user == actual_user &&
-    expected_pass == actual_pass) {
+  if (expected_user == actual_user && expected_pass == actual_pass) {
     requestAuth = false;
   }
-  if (proxy_expected_user == proxy_actual_user &&
-    proxy_expected_pass == proxy_actual_pass) {
+  if (
+    proxy_expected_user == proxy_actual_user &&
+    proxy_expected_pass == proxy_actual_pass
+  ) {
     requestProxyAuth = false;
   }
 
   if (anonymous) {
     if (authPresent) {
-      response.setStatusLine("1.0", 400, "Unexpected authorization header found");
+      response.setStatusLine(
+        "1.0",
+        400,
+        "Unexpected authorization header found"
+      );
     } else {
       response.setStatusLine("1.0", 200, "Authorization header not found");
     }
-  } else {
-    if (requestProxyAuth) {
-      response.setStatusLine("1.0", 407, "Proxy authentication required");
-      for (i = 0; i < authHeaderCount; ++i)
-        response.setHeader("Proxy-Authenticate", "basic realm=\"" + proxy_realm + "\"", true);
-    } else if (requestAuth) {
-      if (formauth && authPresent)
-        response.setStatusLine("1.0", 403, "Form authentication required");
-      else
-        response.setStatusLine("1.0", 401, "Authentication required");
-      for (i = 0; i < authHeaderCount; ++i)
-        response.setHeader("WWW-Authenticate", "basic realm=\"" + realm + "\"", true);
+  } else if (requestProxyAuth) {
+    response.setStatusLine("1.0", 407, "Proxy authentication required");
+    for (i = 0; i < authHeaderCount; ++i) {
+      response.setHeader(
+        "Proxy-Authenticate",
+        'basic realm="' + proxy_realm + '"',
+        true
+      );
+    }
+  } else if (requestAuth) {
+    if (formauth && authPresent) {
+      response.setStatusLine("1.0", 403, "Form authentication required");
     } else {
-      response.setStatusLine("1.0", 200, "OK");
+      response.setStatusLine("1.0", 401, "Authentication required");
+    }
+    for (i = 0; i < authHeaderCount; ++i) {
+      response.setHeader(
+        "WWW-Authenticate",
+        'basic realm="' + realm + '"',
+        true
+      );
     }
+  } else {
+    response.setStatusLine("1.0", 200, "OK");
   }
 
   response.setHeader("Content-Type", "application/xhtml+xml", false);
   response.write("<html xmlns='http://www.w3.org/1999/xhtml'>");
-  response.write("<p>Login: <span id='ok'>" + (requestAuth ? "FAIL" : "PASS") + "</span></p>\n");
-  response.write("<p>Proxy: <span id='proxy'>" + (requestProxyAuth ? "FAIL" : "PASS") + "</span></p>\n");
+  response.write(
+    "<p>Login: <span id='ok'>" +
+      (requestAuth ? "FAIL" : "PASS") +
+      "</span></p>\n"
+  );
+  response.write(
+    "<p>Proxy: <span id='proxy'>" +
+      (requestProxyAuth ? "FAIL" : "PASS") +
+      "</span></p>\n"
+  );
   response.write("<p>Auth: <span id='auth'>" + authHeader + "</span></p>\n");
   response.write("<p>User: <span id='user'>" + actual_user + "</span></p>\n");
   response.write("<p>Pass: <span id='pass'>" + actual_pass + "</span></p>\n");
@@ -164,23 +211,27 @@
       response.write("123456789\n");
     }
     response.write("</div>");
-    response.write("<span id='footnote'>This is a footnote after the huge content fill</span>");
+    response.write(
+      "<span id='footnote'>This is a footnote after the huge content fill</span>"
+    );
   }
 
   if (plugin) {
-    response.write("<embed id='embedtest' style='width: 400px; height: 100px;' " + 
-           "type='application/x-test'></embed>\n");
+    response.write(
+      "<embed id='embedtest' style='width: 400px; height: 100px;' " +
+        "type='application/x-test'></embed>\n"
+    );
   }
 
   response.write("</html>");
 }
 
-
 // base64 decoder
 //
 // Yoinked from extensions/xml-rpc/src/nsXmlRpcClient.js because btoa()
 // doesn't seem to exist. :-(
 /* Convert Base64 data to a string */
+/* eslint-disable prettier/prettier */
 const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
@@ -191,38 +242,43 @@
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
-const base64Pad = '=';
+
+/* eslint-enable prettier/prettier */
+const base64Pad = "=";
 
 function base64ToString(data) {
+  let result = "";
+  let leftbits = 0; // number of bits decoded, but yet to be appended
+  let leftdata = 0; // bits decoded, but yet to be appended
+
+  // Convert one by one.
+  for (let i = 0; i < data.length; i++) {
+    let c = toBinaryTable[data.charCodeAt(i) & 0x7f];
+    let padding = data[i] == base64Pad;
+    // Skip illegal characters and whitespace
+    if (c == -1) {
+      continue;
+    }
 
-    var result = '';
-    var leftbits = 0; // number of bits decoded, but yet to be appended
-    var leftdata = 0; // bits decoded, but yet to be appended
-
-    // Convert one by one.
-    for (var i = 0; i < data.length; i++) {
-        var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
-        var padding = (data[i] == base64Pad);
-        // Skip illegal characters and whitespace
-        if (c == -1) continue;
-        
-        // Collect data into leftdata, update bitcount
-        leftdata = (leftdata << 6) | c;
-        leftbits += 6;
-
-        // If we have 8 or more bits, append 8 bits to the result
-        if (leftbits >= 8) {
-            leftbits -= 8;
-            // Append if not padding.
-            if (!padding)
-                result += String.fromCharCode((leftdata >> leftbits) & 0xff);
-            leftdata &= (1 << leftbits) - 1;
-        }
-    }
-
-    // If there are any bits left, the base64 string was corrupted
-    if (leftbits)
-        throw Components.Exception('Corrupted base64 string');
+    // Collect data into leftdata, update bitcount
+    leftdata = (leftdata << 6) | c;
+    leftbits += 6;
+
+    // If we have 8 or more bits, append 8 bits to the result
+    if (leftbits >= 8) {
+      leftbits -= 8;
+      // Append if not padding.
+      if (!padding) {
+        result += String.fromCharCode((leftdata >> leftbits) & 0xff);
+      }
+      leftdata &= (1 << leftbits) - 1;
+    }
+  }
+
+  // If there are any bits left, the base64 string was corrupted
+  if (leftbits) {
+    throw Components.Exception("Corrupted base64 string");
+  }
 
-    return result;
+  return result;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/browser/authenticate.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/browser/authenticate.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/browser/authenticate.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/browser/authenticate.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var match;
   var requestAuth = true;
 
@@ -9,23 +8,27 @@
   // at the beginning of the query string.
   var query = "?" + request.queryString;
 
-  var expected_user = "test", expected_pass = "testpass", realm = "mochitest";
+  var expected_user = "test",
+    expected_pass = "testpass",
+    realm = "mochitest";
 
   // user=xxx
   match = /[^_]user=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_user = match[1];
+  }
 
   // pass=xxx
   match = /[^_]pass=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_pass = match[1];
+  }
 
   // realm=xxx
   match = /[^_]realm=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     realm = match[1];
-
+  }
 
   // Look for an authentication header, if any, in the request.
   //
@@ -34,51 +37,59 @@
   // This test only supports Basic auth. The value sent by the client is
   // "username:password", obscured with base64 encoding.
 
-  var actual_user = "", actual_pass = "", authHeader, authPresent = false;
+  var actual_user = "",
+    actual_pass = "",
+    authHeader,
+    authPresent = false;
   if (request.hasHeader("Authorization")) {
     authPresent = true;
     authHeader = request.getHeader("Authorization");
     match = /Basic (.+)/.exec(authHeader);
-    if (match.length != 2)
-        throw new Error("Couldn't parse auth header: " + authHeader);
+    if (match.length != 2) {
+      throw new Error("Couldn't parse auth header: " + authHeader);
+    }
 
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
-    if (match.length != 3)
-        throw new Error("Couldn't decode auth header: " + userpass);
+    if (match.length != 3) {
+      throw new Error("Couldn't decode auth header: " + userpass);
+    }
     actual_user = match[1];
     actual_pass = match[2];
   }
 
   // Don't request authentication if the credentials we got were what we
   // expected.
-  if (expected_user == actual_user &&
-    expected_pass == actual_pass) {
+  if (expected_user == actual_user && expected_pass == actual_pass) {
     requestAuth = false;
   }
 
   if (requestAuth) {
     response.setStatusLine("1.0", 401, "Authentication required");
-    response.setHeader("WWW-Authenticate", "basic realm=\"" + realm + "\"", true);
+    response.setHeader("WWW-Authenticate", 'basic realm="' + realm + '"', true);
   } else {
     response.setStatusLine("1.0", 200, "OK");
   }
 
   response.setHeader("Content-Type", "application/xhtml+xml", false);
   response.write("<html xmlns='http://www.w3.org/1999/xhtml'>");
-  response.write("<p>Login: <span id='ok'>" + (requestAuth ? "FAIL" : "PASS") + "</span></p>\n");
+  response.write(
+    "<p>Login: <span id='ok'>" +
+      (requestAuth ? "FAIL" : "PASS") +
+      "</span></p>\n"
+  );
   response.write("<p>Auth: <span id='auth'>" + authHeader + "</span></p>\n");
   response.write("<p>User: <span id='user'>" + actual_user + "</span></p>\n");
   response.write("<p>Pass: <span id='pass'>" + actual_pass + "</span></p>\n");
   response.write("</html>");
 }
 
-
 // base64 decoder
 //
 // Yoinked from extensions/xml-rpc/src/nsXmlRpcClient.js because btoa()
 // doesn't seem to exist. :-(
 /* Convert Base64 data to a string */
+/* eslint-disable prettier/prettier */
 const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
@@ -89,38 +100,42 @@
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
-const base64Pad = '=';
+/* eslint-enable prettier/prettier */
+const base64Pad = "=";
 
 function base64ToString(data) {
+  var result = "";
+  var leftbits = 0; // number of bits decoded, but yet to be appended
+  var leftdata = 0; // bits decoded, but yet to be appended
+
+  // Convert one by one.
+  for (var i = 0; i < data.length; i++) {
+    var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
+    var padding = data[i] == base64Pad;
+    // Skip illegal characters and whitespace
+    if (c == -1) {
+      continue;
+    }
 
-    var result = '';
-    var leftbits = 0; // number of bits decoded, but yet to be appended
-    var leftdata = 0; // bits decoded, but yet to be appended
-
-    // Convert one by one.
-    for (var i = 0; i < data.length; i++) {
-        var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
-        var padding = (data[i] == base64Pad);
-        // Skip illegal characters and whitespace
-        if (c == -1) continue;
-
-        // Collect data into leftdata, update bitcount
-        leftdata = (leftdata << 6) | c;
-        leftbits += 6;
-
-        // If we have 8 or more bits, append 8 bits to the result
-        if (leftbits >= 8) {
-            leftbits -= 8;
-            // Append if not padding.
-            if (!padding)
-                result += String.fromCharCode((leftdata >> leftbits) & 0xff);
-            leftdata &= (1 << leftbits) - 1;
-        }
+    // Collect data into leftdata, update bitcount
+    leftdata = (leftdata << 6) | c;
+    leftbits += 6;
+
+    // If we have 8 or more bits, append 8 bits to the result
+    if (leftbits >= 8) {
+      leftbits -= 8;
+      // Append if not padding.
+      if (!padding) {
+        result += String.fromCharCode((leftdata >> leftbits) & 0xff);
+      }
+      leftdata &= (1 << leftbits) - 1;
     }
+  }
 
-    // If there are any bits left, the base64 string was corrupted
-    if (leftbits)
-        throw Components.Exception('Corrupted base64 string');
+  // If there are any bits left, the base64 string was corrupted
+  if (leftbits) {
+    throw Components.Exception("Corrupted base64 string");
+  }
 
-    return result;
+  return result;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/browser/file_focus_before_DOMContentLoaded.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/browser/file_focus_before_DOMContentLoaded.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/browser/file_focus_before_DOMContentLoaded.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/browser/file_focus_before_DOMContentLoaded.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -7,7 +7,7 @@
 const DELAY = 2 * 1000; // Delay two seconds before completing the request.
 
 /* eslint-disable-next-line mozilla/use-chromeutils-import */
-let {setTimeout} = Cu.import("resource://gre/modules/Timer.jsm", {});
+let { setTimeout } = Cu.import("resource://gre/modules/Timer.jsm", {});
 
 function handleRequest(request, response) {
   response.processAsync();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/formsubmit.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/formsubmit.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/formsubmit.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/formsubmit.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   try {
     reallyHandleRequest(request, response);
   } catch (e) {
@@ -8,24 +7,26 @@
   }
 }
 
-
 function reallyHandleRequest(request, response) {
-  var match;
-  var requestAuth = true;
+  let match;
+  let requestAuth = true;
 
   // XXX I bet this doesn't work for POST requests.
-  var query = request.queryString;
+  let query = request.queryString;
 
-  var user = null, pass = null;
+  let user = null,
+    pass = null;
   // user=xxx
   match = /user(?:name)?=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     user = match[1];
+  }
 
   // pass=xxx
   match = /pass(?:word)?=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     pass = match[1];
+  }
 
   response.setStatusLine("1.0", 200, "OK");
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/mochitest/auth2/authenticate.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/mochitest/auth2/authenticate.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/mochitest/auth2/authenticate.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/mochitest/auth2/authenticate.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   try {
     reallyHandleRequest(request, response);
   } catch (e) {
@@ -8,10 +7,10 @@
   }
 }
 
-
 function reallyHandleRequest(request, response) {
   var match;
-  var requestAuth = true, requestProxyAuth = true;
+  var requestAuth = true,
+    requestProxyAuth = true;
 
   // Allow the caller to drive how authentication is processed via the query.
   // Eg, http://localhost:8888/authenticate.sjs?user=foo&realm=bar
@@ -19,133 +18,178 @@
   // at the beginning of the query string.
   var query = "?" + request.queryString;
 
-  var expected_user = "", expected_pass = "", realm = "mochitest";
-  var proxy_expected_user = "", proxy_expected_pass = "", proxy_realm = "mochi-proxy";
-  var huge = false, plugin = false, anonymous = false;
+  var expected_user = "",
+    expected_pass = "",
+    realm = "mochitest";
+  var proxy_expected_user = "",
+    proxy_expected_pass = "",
+    proxy_realm = "mochi-proxy";
+  var huge = false,
+    plugin = false,
+    anonymous = false;
   var authHeaderCount = 1;
   // user=xxx
   match = /[^_]user=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_user = match[1];
+  }
 
   // pass=xxx
   match = /[^_]pass=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_pass = match[1];
+  }
 
   // realm=xxx
   match = /[^_]realm=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     realm = match[1];
+  }
 
   // proxy_user=xxx
   match = /proxy_user=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_expected_user = match[1];
+  }
 
   // proxy_pass=xxx
   match = /proxy_pass=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_expected_pass = match[1];
+  }
 
   // proxy_realm=xxx
   match = /proxy_realm=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_realm = match[1];
+  }
 
   // huge=1
   match = /huge=1/.exec(query);
-  if (match)
+  if (match) {
     huge = true;
+  }
 
   // plugin=1
   match = /plugin=1/.exec(query);
-  if (match)
+  if (match) {
     plugin = true;
+  }
 
   // multiple=1
   match = /multiple=([^&]*)/.exec(query);
-  if (match)
-    authHeaderCount = match[1]+0;
+  if (match) {
+    authHeaderCount = match[1] + 0;
+  }
 
   // anonymous=1
   match = /anonymous=1/.exec(query);
-  if (match)
+  if (match) {
     anonymous = true;
+  }
 
   // Look for an authentication header, if any, in the request.
   //
   // EG: Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
-  // 
+  //
   // This test only supports Basic auth. The value sent by the client is
   // "username:password", obscured with base64 encoding.
 
-  var actual_user = "", actual_pass = "", authHeader, authPresent = false;
+  var actual_user = "",
+    actual_pass = "",
+    authHeader,
+    authPresent = false;
   if (request.hasHeader("Authorization")) {
     authPresent = true;
     authHeader = request.getHeader("Authorization");
     match = /Basic (.+)/.exec(authHeader);
-    if (match.length != 2)
-        throw new Error("Couldn't parse auth header: " + authHeader);
+    if (match.length != 2) {
+      throw new Error("Couldn't parse auth header: " + authHeader);
+    }
 
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
-    if (match.length != 3)
-        throw new Error("Couldn't decode auth header: " + userpass);
+    if (match.length != 3) {
+      throw new Error("Couldn't decode auth header: " + userpass);
+    }
     actual_user = match[1];
     actual_pass = match[2];
-  } 
+  }
 
-  var proxy_actual_user = "", proxy_actual_pass = "";
+  var proxy_actual_user = "",
+    proxy_actual_pass = "";
   if (request.hasHeader("Proxy-Authorization")) {
     authHeader = request.getHeader("Proxy-Authorization");
     match = /Basic (.+)/.exec(authHeader);
-    if (match.length != 2)
-        throw new Error("Couldn't parse auth header: " + authHeader);
+    if (match.length != 2) {
+      throw new Error("Couldn't parse auth header: " + authHeader);
+    }
 
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
-    if (match.length != 3)
-        throw new Error("Couldn't decode auth header: " + userpass);
+    if (match.length != 3) {
+      throw new Error("Couldn't decode auth header: " + userpass);
+    }
     proxy_actual_user = match[1];
     proxy_actual_pass = match[2];
   }
 
   // Don't request authentication if the credentials we got were what we
   // expected.
-  if (expected_user == actual_user &&
-    expected_pass == actual_pass) {
+  if (expected_user == actual_user && expected_pass == actual_pass) {
     requestAuth = false;
   }
-  if (proxy_expected_user == proxy_actual_user &&
-    proxy_expected_pass == proxy_actual_pass) {
+  if (
+    proxy_expected_user == proxy_actual_user &&
+    proxy_expected_pass == proxy_actual_pass
+  ) {
     requestProxyAuth = false;
   }
 
   if (anonymous) {
     if (authPresent) {
-      response.setStatusLine("1.0", 400, "Unexpected authorization header found");
+      response.setStatusLine(
+        "1.0",
+        400,
+        "Unexpected authorization header found"
+      );
     } else {
       response.setStatusLine("1.0", 200, "Authorization header not found");
     }
-  } else {
-    if (requestProxyAuth) {
-      response.setStatusLine("1.0", 407, "Proxy authentication required");
-      for (i = 0; i < authHeaderCount; ++i)
-        response.setHeader("Proxy-Authenticate", "basic realm=\"" + proxy_realm + "\"", true);
-    } else if (requestAuth) {
-      response.setStatusLine("1.0", 401, "Authentication required");
-      for (i = 0; i < authHeaderCount; ++i)
-        response.setHeader("WWW-Authenticate", "basic realm=\"" + realm + "\"", true);
-    } else {
-      response.setStatusLine("1.0", 200, "OK");
+  } else if (requestProxyAuth) {
+    response.setStatusLine("1.0", 407, "Proxy authentication required");
+    for (i = 0; i < authHeaderCount; ++i) {
+      response.setHeader(
+        "Proxy-Authenticate",
+        'basic realm="' + proxy_realm + '"',
+        true
+      );
+    }
+  } else if (requestAuth) {
+    response.setStatusLine("1.0", 401, "Authentication required");
+    for (i = 0; i < authHeaderCount; ++i) {
+      response.setHeader(
+        "WWW-Authenticate",
+        'basic realm="' + realm + '"',
+        true
+      );
     }
+  } else {
+    response.setStatusLine("1.0", 200, "OK");
   }
 
   response.setHeader("Content-Type", "application/xhtml+xml", false);
   response.write("<html xmlns='http://www.w3.org/1999/xhtml'>");
-  response.write("<p>Login: <span id='ok'>" + (requestAuth ? "FAIL" : "PASS") + "</span></p>\n");
-  response.write("<p>Proxy: <span id='proxy'>" + (requestProxyAuth ? "FAIL" : "PASS") + "</span></p>\n");
+  response.write(
+    "<p>Login: <span id='ok'>" +
+      (requestAuth ? "FAIL" : "PASS") +
+      "</span></p>\n"
+  );
+  response.write(
+    "<p>Proxy: <span id='proxy'>" +
+      (requestProxyAuth ? "FAIL" : "PASS") +
+      "</span></p>\n"
+  );
   response.write("<p>Auth: <span id='auth'>" + authHeader + "</span></p>\n");
   response.write("<p>User: <span id='user'>" + actual_user + "</span></p>\n");
   response.write("<p>Pass: <span id='pass'>" + actual_pass + "</span></p>\n");
@@ -156,23 +200,27 @@
       response.write("123456789\n");
     }
     response.write("</div>");
-    response.write("<span id='footnote'>This is a footnote after the huge content fill</span>");
+    response.write(
+      "<span id='footnote'>This is a footnote after the huge content fill</span>"
+    );
   }
 
   if (plugin) {
-    response.write("<embed id='embedtest' style='width: 400px; height: 100px;' " + 
-           "type='application/x-test'></embed>\n");
+    response.write(
+      "<embed id='embedtest' style='width: 400px; height: 100px;' " +
+        "type='application/x-test'></embed>\n"
+    );
   }
 
   response.write("</html>");
 }
 
-
 // base64 decoder
 //
 // Yoinked from extensions/xml-rpc/src/nsXmlRpcClient.js because btoa()
 // doesn't seem to exist. :-(
 /* Convert Base64 data to a string */
+/* eslint-disable prettier/prettier */
 const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
@@ -183,38 +231,42 @@
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
-const base64Pad = '=';
+/* eslint-enable prettier/prettier */
+const base64Pad = "=";
 
 function base64ToString(data) {
+  var result = "";
+  var leftbits = 0; // number of bits decoded, but yet to be appended
+  var leftdata = 0; // bits decoded, but yet to be appended
+
+  // Convert one by one.
+  for (var i = 0; i < data.length; i++) {
+    var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
+    var padding = data[i] == base64Pad;
+    // Skip illegal characters and whitespace
+    if (c == -1) {
+      continue;
+    }
+
+    // Collect data into leftdata, update bitcount
+    leftdata = (leftdata << 6) | c;
+    leftbits += 6;
+
+    // If we have 8 or more bits, append 8 bits to the result
+    if (leftbits >= 8) {
+      leftbits -= 8;
+      // Append if not padding.
+      if (!padding) {
+        result += String.fromCharCode((leftdata >> leftbits) & 0xff);
+      }
+      leftdata &= (1 << leftbits) - 1;
+    }
+  }
 
-    var result = '';
-    var leftbits = 0; // number of bits decoded, but yet to be appended
-    var leftdata = 0; // bits decoded, but yet to be appended
-
-    // Convert one by one.
-    for (var i = 0; i < data.length; i++) {
-        var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
-        var padding = (data[i] == base64Pad);
-        // Skip illegal characters and whitespace
-        if (c == -1) continue;
-        
-        // Collect data into leftdata, update bitcount
-        leftdata = (leftdata << 6) | c;
-        leftbits += 6;
-
-        // If we have 8 or more bits, append 8 bits to the result
-        if (leftbits >= 8) {
-            leftbits -= 8;
-            // Append if not padding.
-            if (!padding)
-                result += String.fromCharCode((leftdata >> leftbits) & 0xff);
-            leftdata &= (1 << leftbits) - 1;
-        }
-    }
-
-    // If there are any bits left, the base64 string was corrupted
-    if (leftbits)
-        throw Components.Exception('Corrupted base64 string');
+  // If there are any bits left, the base64 string was corrupted
+  if (leftbits) {
+    throw Components.Exception("Corrupted base64 string");
+  }
 
-    return result;
+  return result;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/unit/test_PasswordRulesManager_generatePassword.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/unit/test_PasswordRulesManager_generatePassword.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/passwordmgr/test/unit/test_PasswordRulesManager_generatePassword.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/passwordmgr/test/unit/test_PasswordRulesManager_generatePassword.js	2021-10-20 19:28:49.000000000 +0000
@@ -225,6 +225,71 @@
   verifyPassword(TEST_RULES, generatedPassword);
 });
 
+add_task(
+  async function test_generatePassword_with_arbitrary_required_characters() {
+    // Force password generation to be enabled.
+    Services.prefs.setBoolPref("signon.generation.available", true);
+    Services.prefs.setBoolPref("signon.generation.enabled", true);
+    Services.prefs.setBoolPref("signon.improvedPasswordRules.enabled", true);
+    // TEST_ORIGIN emulates the browsingContext.currentWindowGlobal.documentURI variable in LoginManagerParent
+    // and so it should always be a correctly formed URI when working with
+    // the PasswordRulesParser and PasswordRulesManager modules
+    const TEST_ORIGIN = Services.io.newURI("https://example.com");
+
+    // TEST_BASE_ORIGIN is how each domain is stored in RemoteSettings, and so
+    // we need this in order to parse out the particular password rules we're verifying
+    const TEST_BASE_ORIGIN = "example.com";
+    const REQUIRED_ARBITRARY_CHARACTERS = "!#$@*()_+=";
+    // We use an extremely long password to ensure there are no invalid characters generated in the password.
+    // This ensures we exhaust all of "allRequiredCharacters" in PasswordGenerator.jsm.
+    // Otherwise, there's a small chance a "," may have been added to "allRequiredCharacters"
+    // which will generate an invalid password in this case.
+    const TEST_RULES = `required: [${REQUIRED_ARBITRARY_CHARACTERS}], upper, lower; maxlength: 255; minlength: 255;`;
+    await LoginTestUtils.remoteSettings.setupImprovedPasswordRules(
+      TEST_BASE_ORIGIN,
+      TEST_RULES
+    );
+    const records = await RemoteSettings(IMPROVED_RULES_COLLECTION).get();
+
+    let rules = getRulesForRecord(records, TEST_BASE_ORIGIN);
+
+    rules = PasswordRulesParser.parsePasswordRules(rules);
+    ok(rules.length, "Rules should exist after parsing");
+
+    let PRMP = new PasswordRulesManagerParent();
+    ok(PRMP.generatePassword, "PRMP.generatePassword exists");
+
+    let generatedPassword = await PRMP.generatePassword(TEST_ORIGIN);
+    generatedPassword = await PRMP.generatePassword(TEST_ORIGIN);
+    ok(generatedPassword, "A password was generated");
+
+    verifyPassword(TEST_RULES, generatedPassword);
+
+    let specialCharacters = PasswordGenerator._getSpecialCharacters();
+    let digits = PasswordGenerator._getDigits();
+    // Additional verification for this password case since
+    // we want to ensure no extra special characters and no digits are generated.
+    let disallowedSpecialCharacters = "";
+    for (let char of specialCharacters) {
+      if (!REQUIRED_ARBITRARY_CHARACTERS.includes(char)) {
+        disallowedSpecialCharacters += char;
+      }
+    }
+    for (let char of disallowedSpecialCharacters) {
+      ok(
+        !generatedPassword.includes(char),
+        "Password must not contain any disallowed special characters: " + char
+      );
+    }
+    for (let char of digits) {
+      ok(
+        !generatedPassword.includes(char),
+        "Password must not contain any digits: " + char
+      );
+    }
+  }
+);
+
 // Checks the "www4.prepaid.bankofamerica.com" case to ensure the rules are found
 add_task(async function test_generatePassword_subdomain_rule() {
   const testCases = [
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/Bookmarks.jsm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/Bookmarks.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/Bookmarks.jsm	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/Bookmarks.jsm	2021-10-20 19:28:50.000000000 +0000
@@ -320,43 +320,47 @@
         url = item.url.href;
       }
 
-      let notification = new PlacesBookmarkAddition({
-        id: itemId,
-        url,
-        itemType: item.type,
-        parentId: parent._id,
-        index: item.index,
-        title: item.title,
-        dateAdded: item.dateAdded,
-        guid: item.guid,
-        parentGuid: item.parentGuid,
-        source: item.source,
-        isTagging: isTagging || isTagsFolder,
-      });
-      PlacesObservers.notifyListeners([notification]);
+      const notifications = [
+        new PlacesBookmarkAddition({
+          id: itemId,
+          url,
+          itemType: item.type,
+          parentId: parent._id,
+          index: item.index,
+          title: item.title,
+          dateAdded: item.dateAdded,
+          guid: item.guid,
+          parentGuid: item.parentGuid,
+          source: item.source,
+          isTagging: isTagging || isTagsFolder,
+        }),
+      ];
 
-      // If it's a tag, notify OnItemChanged to all bookmarks for this URL.
+      // If it's a tag, notify bookmark-tags-changed event to all bookmarks for this URL.
       if (isTagging) {
-        let observers = PlacesUtils.bookmarks.getObservers();
+        const tags = PlacesUtils.tagging.getTagsForURI(NetUtil.newURI(url));
+
         for (let entry of await fetchBookmarksByURL(item, {
           concurrent: true,
         })) {
-          notify(observers, "onItemChanged", [
-            entry._id,
-            "tags",
-            false,
-            "",
-            PlacesUtils.toPRTime(entry.lastModified),
-            entry.type,
-            entry._parentId,
-            entry.guid,
-            entry.parentGuid,
-            "",
-            item.source,
-          ]);
+          notifications.push(
+            new PlacesBookmarkTags({
+              id: entry._id,
+              itemType: entry.type,
+              url,
+              guid: entry.guid,
+              parentGuid: entry.parentGuid,
+              tags,
+              lastModified: entry.lastModified,
+              source: item.source,
+              isTagging: false,
+            })
+          );
         }
       }
 
+      PlacesObservers.notifyListeners(notifications);
+
       // Remove non-enumerable properties.
       delete item.source;
       return Object.assign({}, item);
@@ -852,9 +856,6 @@
 
           const notifications = [];
 
-          // Notify onItemChanged to listeners.
-          let observers = PlacesUtils.bookmarks.getObservers();
-
           // For lastModified, we only care about the original input, since we
           // should not notify implicit lastModified changes.
           if (
@@ -918,19 +919,22 @@
                 { tags: [updatedItem.title] },
                 { concurrent: true }
               )) {
-                notify(observers, "onItemChanged", [
-                  entry._id,
-                  "tags",
-                  false,
-                  "",
-                  PlacesUtils.toPRTime(entry.lastModified),
-                  entry.type,
-                  entry._parentId,
-                  entry.guid,
-                  entry.parentGuid,
-                  "",
-                  updatedItem.source,
-                ]);
+                const tags = PlacesUtils.tagging.getTagsForURI(
+                  NetUtil.newURI(entry.url)
+                );
+                notifications.push(
+                  new PlacesBookmarkTags({
+                    id: entry._id,
+                    itemType: entry.type,
+                    url: entry.url,
+                    guid: entry.guid,
+                    parentGuid: entry.parentGuid,
+                    tags,
+                    lastModified: entry.lastModified,
+                    source: updatedItem.source,
+                    isTagging: false,
+                  })
+                );
               }
             }
           }
@@ -1313,7 +1317,6 @@
       let notifications = [];
 
       for (let item of removeItems) {
-        let observers = PlacesUtils.bookmarks.getObservers();
         let isUntagging = item._grandParentId == PlacesUtils.tagsFolderId;
         let url = "";
         if (item.type == Bookmarks.TYPE_BOOKMARK) {
@@ -1336,22 +1339,23 @@
         );
 
         if (isUntagging) {
+          const tags = PlacesUtils.tagging.getTagsForURI(NetUtil.newURI(url));
           for (let entry of await fetchBookmarksByURL(item, {
             concurrent: true,
           })) {
-            notify(observers, "onItemChanged", [
-              entry._id,
-              "tags",
-              false,
-              "",
-              PlacesUtils.toPRTime(entry.lastModified),
-              entry.type,
-              entry._parentId,
-              entry.guid,
-              entry.parentGuid,
-              "",
-              options.source,
-            ]);
+            notifications.push(
+              new PlacesBookmarkTags({
+                id: entry._id,
+                itemType: entry.type,
+                url,
+                guid: entry.guid,
+                parentGuid: entry.parentGuid,
+                tags,
+                lastModified: entry.lastModified,
+                source: options.source,
+                isTagging: false,
+              })
+            );
           }
         }
       }
@@ -1855,38 +1859,6 @@
 
 // Globals.
 
-/**
- * Sends a bookmarks notification through the given observers.
- *
- * @param {Array} observers
- *        array of nsINavBookmarkObserver objects.
- * @param {String} notification
- *        the notification name.
- * @param {Array} [args]
- *        array of arguments to pass to the notification.
- * @param {Object} [information]
- *        Information about the notification, so we can filter based
- *        based on the observer's preferences.
- */
-function notify(observers, notification, args = [], information = {}) {
-  for (let observer of observers) {
-    if (information.isTagging && observer.skipTags) {
-      continue;
-    }
-
-    if (
-      information.isDescendantRemoval &&
-      !PlacesUtils.bookmarks.userContentRoots.includes(information.parentGuid)
-    ) {
-      continue;
-    }
-
-    try {
-      observer[notification](...args);
-    } catch (ex) {}
-  }
-}
-
 // Update implementation.
 
 /**
@@ -3288,7 +3260,6 @@
 
   // Notify listeners in reverse order to serve children before parents.
   let { source = Bookmarks.SOURCES.DEFAULT } = options;
-  let observers = PlacesUtils.bookmarks.getObservers();
   let notifications = [];
   for (let item of itemsRemoved.reverse()) {
     let isUntagging = item._grandParentId == PlacesUtils.tagsFolderId;
@@ -3314,20 +3285,21 @@
     );
 
     if (isUntagging) {
+      const tags = PlacesUtils.tagging.getTagsForURI(NetUtil.newURI(url));
       for (let entry of await fetchBookmarksByURL(item, true)) {
-        notify(observers, "onItemChanged", [
-          entry._id,
-          "tags",
-          false,
-          "",
-          PlacesUtils.toPRTime(entry.lastModified),
-          entry.type,
-          entry._parentId,
-          entry.guid,
-          entry.parentGuid,
-          "",
-          source,
-        ]);
+        notifications.push(
+          new PlacesBookmarkTags({
+            id: entry._id,
+            itemType: entry.type,
+            url,
+            guid: entry.guid,
+            parentGuid: entry.parentGuid,
+            tags,
+            lastModified: entry.lastModified,
+            source,
+            isTagging: false,
+          })
+        );
       }
     }
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/nsNavBookmarks.cpp firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/nsNavBookmarks.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/nsNavBookmarks.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/nsNavBookmarks.cpp	2021-10-20 19:28:49.000000000 +0000
@@ -10,6 +10,7 @@
 #include "Helpers.h"
 
 #include "nsAppDirectoryServiceDefs.h"
+#include "nsITaggingService.h"
 #include "nsNetUtil.h"
 #include "nsUnicharUtils.h"
 #include "nsPrintfCString.h"
@@ -19,6 +20,7 @@
 #include "mozilla/storage.h"
 #include "mozilla/dom/PlacesBookmarkAddition.h"
 #include "mozilla/dom/PlacesBookmarkRemoved.h"
+#include "mozilla/dom/PlacesBookmarkTags.h"
 #include "mozilla/dom/PlacesBookmarkTime.h"
 #include "mozilla/dom/PlacesBookmarkTitle.h"
 #include "mozilla/dom/PlacesObservers.h"
@@ -74,6 +76,18 @@
   return aBookmark.syncStatus == nsINavBookmarksService::SYNC_STATUS_NORMAL;
 }
 
+inline nsresult GetTags(nsIURI* aURI, nsTArray<nsString>& aResult) {
+  nsresult rv;
+  nsCOMPtr<nsITaggingService> taggingService =
+      do_GetService("@mozilla.org/browser/tagging-service;1", &rv);
+
+  if (NS_FAILED(rv)) {
+    return rv;
+  }
+
+  return taggingService->GetTagsForURI(aURI, aResult);
+}
+
 }  // namespace
 
 nsNavBookmarks::nsNavBookmarks() : mCanNotify(false) {
@@ -421,28 +435,28 @@
   rv = transaction.Commit();
   NS_ENSURE_SUCCESS(rv, rv);
 
-  if (mCanNotify) {
-    Sequence<OwningNonNull<PlacesEvent>> events;
-    nsAutoCString utf8spec;
-    aURI->GetSpec(utf8spec);
+  if (!mCanNotify) {
+    return NS_OK;
+  }
 
-    RefPtr<PlacesBookmarkAddition> bookmark = new PlacesBookmarkAddition();
-    bookmark->mItemType = TYPE_BOOKMARK;
-    bookmark->mId = *aNewBookmarkId;
-    bookmark->mParentId = aFolder;
-    bookmark->mIndex = index;
-    bookmark->mUrl.Assign(NS_ConvertUTF8toUTF16(utf8spec));
-    bookmark->mTitle.Assign(NS_ConvertUTF8toUTF16(title));
-    bookmark->mDateAdded = dateAdded / 1000;
-    bookmark->mGuid.Assign(guid);
-    bookmark->mParentGuid.Assign(folderGuid);
-    bookmark->mSource = aSource;
-    bookmark->mIsTagging = grandParentId == mDB->GetTagsFolderId();
-    bool success = !!events.AppendElement(bookmark.forget(), fallible);
-    MOZ_RELEASE_ASSERT(success);
+  Sequence<OwningNonNull<PlacesEvent>> notifications;
+  nsAutoCString utf8spec;
+  aURI->GetSpec(utf8spec);
 
-    PlacesObservers::NotifyListeners(events);
-  }
+  RefPtr<PlacesBookmarkAddition> bookmark = new PlacesBookmarkAddition();
+  bookmark->mItemType = TYPE_BOOKMARK;
+  bookmark->mId = *aNewBookmarkId;
+  bookmark->mParentId = aFolder;
+  bookmark->mIndex = index;
+  bookmark->mUrl.Assign(NS_ConvertUTF8toUTF16(utf8spec));
+  bookmark->mTitle.Assign(NS_ConvertUTF8toUTF16(title));
+  bookmark->mDateAdded = dateAdded / 1000;
+  bookmark->mGuid.Assign(guid);
+  bookmark->mParentGuid.Assign(folderGuid);
+  bookmark->mSource = aSource;
+  bookmark->mIsTagging = grandParentId == mDB->GetTagsFolderId();
+  bool success = !!notifications.AppendElement(bookmark.forget(), fallible);
+  MOZ_RELEASE_ASSERT(success);
 
   // If the bookmark has been added to a tag container, notify all
   // bookmark-folder result nodes which contain a bookmark for the new
@@ -453,19 +467,30 @@
     rv = GetBookmarksForURI(aURI, bookmarks);
     NS_ENSURE_SUCCESS(rv, rv);
 
+    nsTArray<nsString> tags;
+    rv = GetTags(aURI, tags);
+    NS_ENSURE_SUCCESS(rv, rv);
+
     for (uint32_t i = 0; i < bookmarks.Length(); ++i) {
       // Check that bookmarks doesn't include the current tag itemId.
       MOZ_ASSERT(bookmarks[i].id != *aNewBookmarkId);
-
-      NOTIFY_BOOKMARKS_OBSERVERS(
-          mCanNotify, mObservers,
-          OnItemChanged(bookmarks[i].id, "tags"_ns, false, ""_ns,
-                        bookmarks[i].lastModified, TYPE_BOOKMARK,
-                        bookmarks[i].parentId, bookmarks[i].guid,
-                        bookmarks[i].parentGuid, ""_ns, aSource));
+      RefPtr<PlacesBookmarkTags> tagsChanged = new PlacesBookmarkTags();
+      tagsChanged->mId = bookmarks[i].id;
+      tagsChanged->mItemType = TYPE_BOOKMARK;
+      tagsChanged->mUrl.Assign(NS_ConvertUTF8toUTF16(utf8spec));
+      tagsChanged->mGuid = bookmarks[i].guid;
+      tagsChanged->mParentGuid = bookmarks[i].parentGuid;
+      tagsChanged->mTags.Assign(tags);
+      tagsChanged->mLastModified = bookmarks[i].lastModified / 1000;
+      tagsChanged->mSource = aSource;
+      tagsChanged->mIsTagging = false;
+      success = !!notifications.AppendElement(tagsChanged.forget(), fallible);
+      MOZ_RELEASE_ASSERT(success);
     }
   }
 
+  PlacesObservers::NotifyListeners(notifications);
+
   return NS_OK;
 }
 
@@ -550,27 +575,28 @@
     NS_WARNING_ASSERTION(uri, "Invalid URI in RemoveItem");
   }
 
-  if (mCanNotify) {
-    Sequence<OwningNonNull<PlacesEvent>> events;
-    RefPtr<PlacesBookmarkRemoved> bookmarkRef = new PlacesBookmarkRemoved();
-    bookmarkRef->mItemType = bookmark.type;
-    bookmarkRef->mId = bookmark.id;
-    bookmarkRef->mParentId = bookmark.parentId;
-    bookmarkRef->mIndex = bookmark.position;
-    if (bookmark.type == TYPE_BOOKMARK) {
-      bookmarkRef->mUrl.Assign(NS_ConvertUTF8toUTF16(bookmark.url));
-    }
-    bookmarkRef->mGuid.Assign(bookmark.guid);
-    bookmarkRef->mParentGuid.Assign(bookmark.parentGuid);
-    bookmarkRef->mSource = aSource;
-    bookmarkRef->mIsTagging =
-        bookmark.parentId == tagsRootId || bookmark.grandParentId == tagsRootId;
-    bookmarkRef->mIsDescendantRemoval = false;
-    bool success = !!events.AppendElement(bookmarkRef.forget(), fallible);
-    MOZ_RELEASE_ASSERT(success);
+  if (!mCanNotify) {
+    return NS_OK;
+  }
 
-    PlacesObservers::NotifyListeners(events);
+  Sequence<OwningNonNull<PlacesEvent>> notifications;
+  RefPtr<PlacesBookmarkRemoved> bookmarkRef = new PlacesBookmarkRemoved();
+  bookmarkRef->mItemType = bookmark.type;
+  bookmarkRef->mId = bookmark.id;
+  bookmarkRef->mParentId = bookmark.parentId;
+  bookmarkRef->mIndex = bookmark.position;
+  if (bookmark.type == TYPE_BOOKMARK) {
+    bookmarkRef->mUrl.Assign(NS_ConvertUTF8toUTF16(bookmark.url));
   }
+  bookmarkRef->mGuid.Assign(bookmark.guid);
+  bookmarkRef->mParentGuid.Assign(bookmark.parentGuid);
+  bookmarkRef->mSource = aSource;
+  bookmarkRef->mIsTagging =
+      bookmark.parentId == tagsRootId || bookmark.grandParentId == tagsRootId;
+  bookmarkRef->mIsDescendantRemoval = false;
+  bool success = !!notifications.AppendElement(bookmarkRef.forget(), fallible);
+  MOZ_RELEASE_ASSERT(success);
+
   if (bookmark.type == TYPE_BOOKMARK && bookmark.grandParentId == tagsRootId &&
       uri) {
     // If the removed bookmark was child of a tag container, notify a tags
@@ -579,16 +605,31 @@
     rv = GetBookmarksForURI(uri, bookmarks);
     NS_ENSURE_SUCCESS(rv, rv);
 
+    nsAutoCString utf8spec;
+    uri->GetSpec(utf8spec);
+
+    nsTArray<nsString> tags;
+    rv = GetTags(uri, tags);
+    NS_ENSURE_SUCCESS(rv, rv);
+
     for (uint32_t i = 0; i < bookmarks.Length(); ++i) {
-      NOTIFY_BOOKMARKS_OBSERVERS(
-          mCanNotify, mObservers,
-          OnItemChanged(bookmarks[i].id, "tags"_ns, false, ""_ns,
-                        bookmarks[i].lastModified, TYPE_BOOKMARK,
-                        bookmarks[i].parentId, bookmarks[i].guid,
-                        bookmarks[i].parentGuid, ""_ns, aSource));
+      RefPtr<PlacesBookmarkTags> tagsChanged = new PlacesBookmarkTags();
+      tagsChanged->mId = bookmarks[i].id;
+      tagsChanged->mItemType = TYPE_BOOKMARK;
+      tagsChanged->mUrl.Assign(NS_ConvertUTF8toUTF16(utf8spec));
+      tagsChanged->mGuid = bookmarks[i].guid;
+      tagsChanged->mParentGuid = bookmarks[i].parentGuid;
+      tagsChanged->mTags.Assign(tags);
+      tagsChanged->mLastModified = bookmarks[i].lastModified / 1000;
+      tagsChanged->mSource = aSource;
+      tagsChanged->mIsTagging = false;
+      success = !!notifications.AppendElement(tagsChanged.forget(), fallible);
+      MOZ_RELEASE_ASSERT(success);
     }
   }
 
+  PlacesObservers::NotifyListeners(notifications);
+
   return NS_OK;
 }
 
@@ -856,21 +897,24 @@
       NS_WARNING_ASSERTION(uri, "Invalid URI in RemoveFolderChildren");
     }
 
-    if (mCanNotify) {
-      RefPtr<PlacesBookmarkRemoved> bookmark = new PlacesBookmarkRemoved();
-      bookmark->mItemType = TYPE_BOOKMARK;
-      bookmark->mId = child.id;
-      bookmark->mParentId = child.parentId;
-      bookmark->mIndex = child.position;
-      bookmark->mUrl.Assign(NS_ConvertUTF8toUTF16(child.url));
-      bookmark->mGuid.Assign(child.guid);
-      bookmark->mParentGuid.Assign(child.parentGuid);
-      bookmark->mSource = aSource;
-      bookmark->mIsTagging = (child.grandParentId == tagsRootId);
-      bookmark->mIsDescendantRemoval = (child.grandParentId != tagsRootId);
-      bool success = !!notifications.AppendElement(bookmark.forget(), fallible);
-      MOZ_RELEASE_ASSERT(success);
+    if (!mCanNotify) {
+      return NS_OK;
     }
+
+    RefPtr<PlacesBookmarkRemoved> bookmark = new PlacesBookmarkRemoved();
+    bookmark->mItemType = TYPE_BOOKMARK;
+    bookmark->mId = child.id;
+    bookmark->mParentId = child.parentId;
+    bookmark->mIndex = child.position;
+    bookmark->mUrl.Assign(NS_ConvertUTF8toUTF16(child.url));
+    bookmark->mGuid.Assign(child.guid);
+    bookmark->mParentGuid.Assign(child.parentGuid);
+    bookmark->mSource = aSource;
+    bookmark->mIsTagging = (child.grandParentId == tagsRootId);
+    bookmark->mIsDescendantRemoval = (child.grandParentId != tagsRootId);
+    bool success = !!notifications.AppendElement(bookmark.forget(), fallible);
+    MOZ_RELEASE_ASSERT(success);
+
     if (child.type == TYPE_BOOKMARK && child.grandParentId == tagsRootId &&
         uri) {
       // If the removed bookmark was a child of a tag container, notify all
@@ -880,18 +924,31 @@
       rv = GetBookmarksForURI(uri, bookmarks);
       NS_ENSURE_SUCCESS(rv, rv);
 
+      nsAutoCString utf8spec;
+      uri->GetSpec(utf8spec);
+
+      nsTArray<nsString> tags;
+      rv = GetTags(uri, tags);
+      NS_ENSURE_SUCCESS(rv, rv);
+
       for (uint32_t i = 0; i < bookmarks.Length(); ++i) {
-        NOTIFY_BOOKMARKS_OBSERVERS(
-            mCanNotify, mObservers,
-            OnItemChanged(bookmarks[i].id, "tags"_ns, false, ""_ns,
-                          bookmarks[i].lastModified, TYPE_BOOKMARK,
-                          bookmarks[i].parentId, bookmarks[i].guid,
-                          bookmarks[i].parentGuid, ""_ns, aSource));
+        RefPtr<PlacesBookmarkTags> tagsChanged = new PlacesBookmarkTags();
+        tagsChanged->mId = bookmarks[i].id;
+        tagsChanged->mItemType = TYPE_BOOKMARK;
+        tagsChanged->mUrl.Assign(NS_ConvertUTF8toUTF16(utf8spec));
+        tagsChanged->mGuid = bookmarks[i].guid;
+        tagsChanged->mParentGuid = bookmarks[i].parentGuid;
+        tagsChanged->mTags.Assign(tags);
+        tagsChanged->mLastModified = bookmarks[i].lastModified / 1000;
+        tagsChanged->mSource = aSource;
+        tagsChanged->mIsTagging = false;
+        success = !!notifications.AppendElement(tagsChanged.forget(), fallible);
+        MOZ_RELEASE_ASSERT(success);
       }
     }
   }
 
-  if (notifications.Length() > 0) {
+  if (notifications.Length()) {
     PlacesObservers::NotifyListeners(notifications);
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/nsNavHistoryResult.cpp firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/nsNavHistoryResult.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/nsNavHistoryResult.cpp	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/nsNavHistoryResult.cpp	2021-10-20 19:28:50.000000000 +0000
@@ -22,6 +22,7 @@
 #include "mozilla/dom/PlacesVisitRemoved.h"
 #include "mozilla/dom/PlacesVisitTitle.h"
 #include "mozilla/dom/PlacesBookmarkMoved.h"
+#include "mozilla/dom/PlacesBookmarkTags.h"
 #include "mozilla/dom/PlacesBookmarkTime.h"
 #include "mozilla/dom/PlacesBookmarkTitle.h"
 #include "mozilla/dom/PlacesBookmarkUrl.h"
@@ -2483,25 +2484,6 @@
     return Refresh();
   }
 
-  // Some node could observe both bookmarks and history.  But a node observing
-  // only history should never get a bookmark notification.
-  NS_WARNING_ASSERTION(
-      mResult && mResult->mIsBookmarksObserver,
-      "history observers should not get OnItemChanged, but should get the "
-      "corresponding history notifications instead");
-
-  // Tags in history queries are a special case since tags are per uri and
-  // we filter tags based on searchterms.
-  if (aItemType == nsINavBookmarksService::TYPE_BOOKMARK &&
-      aProperty.EqualsLiteral("tags")) {
-    nsNavBookmarks* bookmarks = nsNavBookmarks::GetBookmarksService();
-    NS_ENSURE_TRUE(bookmarks, NS_ERROR_OUT_OF_MEMORY);
-    nsCOMPtr<nsIURI> uri;
-    nsresult rv = bookmarks->GetBookmarkURI(aItemId, getter_AddRefs(uri));
-    NS_ENSURE_SUCCESS(rv, rv);
-    rv = NotifyIfTagsChanged(uri);
-    NS_ENSURE_SUCCESS(rv, rv);
-  }
   return NS_OK;
 }
 
@@ -2522,6 +2504,19 @@
   return NS_OK;
 }
 
+nsresult nsNavHistoryQueryResultNode::OnItemTagsChanged(int64_t aItemId,
+                                                        const nsAString& aURL) {
+  nsresult rv = nsNavHistoryResultNode::OnItemTagsChanged(aItemId, aURL);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIURI> uri;
+  rv = NS_NewURI(getter_AddRefs(uri), aURL);
+  NS_ENSURE_SUCCESS(rv, rv);
+  rv = NotifyIfTagsChanged(uri);
+  NS_ENSURE_SUCCESS(rv, rv);
+  return NS_OK;
+}
+
 nsresult nsNavHistoryQueryResultNode::OnItemUrlChanged(int64_t aItemId,
                                                        const nsACString& aGUID,
                                                        const nsACString& aURL,
@@ -3193,6 +3188,24 @@
   return RemoveChildAt(index);
 }
 
+nsresult nsNavHistoryResultNode::OnItemTagsChanged(int64_t aItemId,
+                                                   const nsAString& aURL) {
+  if (aItemId != mItemId) {
+    return NS_OK;
+  }
+
+  mTags.SetIsVoid(true);
+
+  bool shouldNotify = !mParent || mParent->AreChildrenVisible();
+  if (shouldNotify) {
+    nsNavHistoryResult* result = GetResult();
+    NS_ENSURE_STATE(result);
+    NOTIFY_RESULT_OBSERVERS(result, NodeTagsChanged(this));
+  }
+
+  return NS_OK;
+}
+
 nsresult nsNavHistoryResultNode::OnItemTimeChanged(int64_t aItemId,
                                                    const nsACString& aGUID,
                                                    PRTime aDateAdded,
@@ -3305,9 +3318,6 @@
       NOTIFY_RESULT_OBSERVERS(
           result, NodeHistoryDetailsChanged(this, oldTime, mAccessCount));
     }
-  } else if (aProperty.EqualsLiteral("tags")) {
-    mTags.SetIsVoid(true);
-    if (shouldNotify) NOTIFY_RESULT_OBSERVERS(result, NodeTagsChanged(this));
   } else if (aProperty.EqualsLiteral("keyword")) {
     if (shouldNotify)
       NOTIFY_RESULT_OBSERVERS(result, NodeKeywordChanged(this, aNewValue));
@@ -3583,7 +3593,7 @@
 }
 
 void nsNavHistoryResult::StopObserving() {
-  AutoTArray<PlacesEventType, 10> events;
+  AutoTArray<PlacesEventType, 11> events;
   events.AppendElement(PlacesEventType::Favicon_changed);
   if (mIsBookmarksObserver) {
     nsNavBookmarks* bookmarks = nsNavBookmarks::GetBookmarksService();
@@ -3594,6 +3604,7 @@
     events.AppendElement(PlacesEventType::Bookmark_added);
     events.AppendElement(PlacesEventType::Bookmark_removed);
     events.AppendElement(PlacesEventType::Bookmark_moved);
+    events.AppendElement(PlacesEventType::Bookmark_tags_changed);
     events.AppendElement(PlacesEventType::Bookmark_time_changed);
     events.AppendElement(PlacesEventType::Bookmark_title_changed);
     events.AppendElement(PlacesEventType::Bookmark_url_changed);
@@ -3717,10 +3728,11 @@
     return;
   }
   bookmarks->AddObserver(this, true);
-  AutoTArray<PlacesEventType, 7> events;
+  AutoTArray<PlacesEventType, 8> events;
   events.AppendElement(PlacesEventType::Bookmark_added);
   events.AppendElement(PlacesEventType::Bookmark_removed);
   events.AppendElement(PlacesEventType::Bookmark_moved);
+  events.AppendElement(PlacesEventType::Bookmark_tags_changed);
   events.AppendElement(PlacesEventType::Bookmark_time_changed);
   events.AppendElement(PlacesEventType::Bookmark_title_changed);
   events.AppendElement(PlacesEventType::Bookmark_url_changed);
@@ -4291,6 +4303,18 @@
                         item->mParentGuid, item->mSource, url));
         break;
       }
+      case PlacesEventType::Bookmark_tags_changed: {
+        const dom::PlacesBookmarkTags* tagsEvent =
+            event->AsPlacesBookmarkTags();
+        if (NS_WARN_IF(!tagsEvent)) {
+          continue;
+        }
+
+        ENUMERATE_BOOKMARK_CHANGED_OBSERVERS(
+            tagsEvent->mParentGuid, tagsEvent->mId,
+            OnItemTagsChanged(tagsEvent->mId, tagsEvent->mUrl));
+        break;
+      }
       case PlacesEventType::Bookmark_time_changed: {
         const dom::PlacesBookmarkTime* timeEvent =
             event->AsPlacesBookmarkTime();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/nsNavHistoryResult.h firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/nsNavHistoryResult.h
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/nsNavHistoryResult.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/nsNavHistoryResult.h	2021-10-20 19:28:50.000000000 +0000
@@ -314,6 +314,7 @@
 
   virtual void OnRemoving();
 
+  nsresult OnItemTagsChanged(int64_t aItemId, const nsAString& aURL);
   nsresult OnItemTimeChanged(int64_t aItemId, const nsACString& aGUID,
                              PRTime aDateAdded, PRTime aLastModified);
   nsresult OnItemTitleChanged(int64_t aItemId, const nsACString& aGUID,
@@ -700,6 +701,7 @@
                        const nsACString& aOldParentGUID,
                        const nsACString& aNewParentGUID, uint16_t aSource,
                        const nsACString& aURI);
+  nsresult OnItemTagsChanged(int64_t aItemId, const nsAString& aURL);
   nsresult OnItemUrlChanged(int64_t aItemId, const nsACString& aGUID,
                             const nsACString& aURL, PRTime aLastModified);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/bookmarks/head_bookmarks.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/bookmarks/head_bookmarks.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/bookmarks/head_bookmarks.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/bookmarks/head_bookmarks.js	2021-10-20 19:28:49.000000000 +0000
@@ -123,6 +123,20 @@
             isTagging: event.isTagging,
           });
           break;
+        case "bookmark-tags-changed":
+          notifications.push({
+            type: event.type,
+            id: event.id,
+            itemType: event.itemType,
+            url: event.url,
+            guid: event.guid,
+            parentGuid: event.parentGuid,
+            tags: event.tags,
+            lastModified: new Date(event.lastModified),
+            source: event.source,
+            isTagging: event.isTagging,
+          });
+          break;
         case "bookmark-time-changed":
           notifications.push({
             type: event.type,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/bookmarks/test_bookmarks_notifications.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/bookmarks/test_bookmarks_notifications.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/bookmarks/test_bookmarks_notifications.js	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/bookmarks/test_bookmarks_notifications.js	2021-10-20 19:28:51.000000000 +0000
@@ -150,15 +150,16 @@
     url: new URL("http://tag.example.com/"),
   });
   let itemId = await PlacesUtils.promiseItemId(bm.guid);
-  let parentId = await PlacesUtils.promiseItemId(bm.parentGuid);
 
   let tagFolder = await PlacesUtils.bookmarks.insert({
     type: PlacesUtils.bookmarks.TYPE_FOLDER,
     parentGuid: PlacesUtils.bookmarks.tagsGuid,
     title: "tag",
   });
-  let placesObserver = expectPlacesObserverNotifications(["bookmark-added"]);
-  let bookmarksObserver = expectNotifications();
+  const observer = expectPlacesObserverNotifications([
+    "bookmark-added",
+    "bookmark-tags-changed",
+  ]);
   let tag = await PlacesUtils.bookmarks.insert({
     type: PlacesUtils.bookmarks.TYPE_BOOKMARK,
     parentGuid: tagFolder.guid,
@@ -167,7 +168,7 @@
   let tagId = await PlacesUtils.promiseItemId(tag.guid);
   let tagParentId = await PlacesUtils.promiseItemId(tag.parentGuid);
 
-  placesObserver.check([
+  observer.check([
     {
       type: "bookmark-added",
       id: tagId,
@@ -182,24 +183,17 @@
       source: Ci.nsINavBookmarksService.SOURCE_DEFAULT,
       isTagging: true,
     },
-  ]);
-
-  bookmarksObserver.check([
     {
-      name: "onItemChanged",
-      arguments: [
-        itemId,
-        "tags",
-        false,
-        "",
-        PlacesUtils.toPRTime(bm.lastModified),
-        bm.type,
-        parentId,
-        bm.guid,
-        bm.parentGuid,
-        "",
-        Ci.nsINavBookmarksService.SOURCE_DEFAULT,
-      ],
+      type: "bookmark-tags-changed",
+      id: itemId,
+      itemType: bm.type,
+      url: bm.url,
+      guid: bm.guid,
+      parentGuid: bm.parentGuid,
+      tags: ["tag"],
+      lastModified: bm.lastModified,
+      source: Ci.nsINavBookmarksService.SOURCE_DEFAULT,
+      isTagging: false,
     },
   ]);
 });
@@ -545,7 +539,6 @@
     url: new URL("http://untag.example.com/"),
   });
   let itemId = await PlacesUtils.promiseItemId(bm.guid);
-  let parentId = await PlacesUtils.promiseItemId(bm.parentGuid);
 
   let tagFolder = await PlacesUtils.bookmarks.insert({
     type: PlacesUtils.bookmarks.TYPE_FOLDER,
@@ -560,11 +553,13 @@
   let tagId = await PlacesUtils.promiseItemId(tag.guid);
   let tagParentId = await PlacesUtils.promiseItemId(tag.parentGuid);
 
-  let placesObserver = expectPlacesObserverNotifications(["bookmark-removed"]);
-  let observer = expectNotifications();
+  const observer = expectPlacesObserverNotifications([
+    "bookmark-removed",
+    "bookmark-tags-changed",
+  ]);
   await PlacesUtils.bookmarks.remove(tag.guid);
 
-  placesObserver.check([
+  observer.check([
     {
       type: "bookmark-removed",
       id: tagId,
@@ -577,23 +572,17 @@
       itemType: PlacesUtils.bookmarks.TYPE_BOOKMARK,
       isTagging: true,
     },
-  ]);
-  observer.check([
     {
-      name: "onItemChanged",
-      arguments: [
-        itemId,
-        "tags",
-        false,
-        "",
-        PlacesUtils.toPRTime(bm.lastModified),
-        bm.type,
-        parentId,
-        bm.guid,
-        bm.parentGuid,
-        "",
-        Ci.nsINavBookmarksService.SOURCE_DEFAULT,
-      ],
+      type: "bookmark-tags-changed",
+      id: itemId,
+      itemType: bm.type,
+      url: bm.url,
+      guid: bm.guid,
+      parentGuid: bm.parentGuid,
+      tags: [],
+      lastModified: bm.lastModified,
+      source: Ci.nsINavBookmarksService.SOURCE_DEFAULT,
+      isTagging: false,
     },
   ]);
 });
@@ -681,6 +670,94 @@
   ]);
 });
 
+add_task(async function multiple_tags() {
+  const BOOKMARK_URL = "http://multipletags.example.com/";
+  const TAG_NAMES = ["tag1", "tag2", "tag3", "tag4", "tag5", "tag6"];
+
+  const bm = await PlacesUtils.bookmarks.insert({
+    type: PlacesUtils.bookmarks.TYPE_BOOKMARK,
+    parentGuid: PlacesUtils.bookmarks.unfiledGuid,
+    url: new URL(BOOKMARK_URL),
+  });
+  const itemId = await PlacesUtils.promiseItemId(bm.guid);
+
+  info("Register all tags");
+  const tagFolders = await Promise.all(
+    TAG_NAMES.map(tagName =>
+      PlacesUtils.bookmarks.insert({
+        type: PlacesUtils.bookmarks.TYPE_FOLDER,
+        parentGuid: PlacesUtils.bookmarks.tagsGuid,
+        title: tagName,
+      })
+    )
+  );
+
+  info("Test adding tags to bookmark");
+  for (let i = 0; i < tagFolders.length; i++) {
+    const tagFolder = tagFolders[i];
+    const expectedTagNames = TAG_NAMES.slice(0, i + 1);
+
+    const observer = expectPlacesObserverNotifications([
+      "bookmark-tags-changed",
+    ]);
+
+    await PlacesUtils.bookmarks.insert({
+      type: PlacesUtils.bookmarks.TYPE_BOOKMARK,
+      parentGuid: tagFolder.guid,
+      url: new URL(BOOKMARK_URL),
+    });
+
+    observer.check([
+      {
+        type: "bookmark-tags-changed",
+        id: itemId,
+        itemType: bm.type,
+        url: bm.url,
+        guid: bm.guid,
+        parentGuid: bm.parentGuid,
+        tags: expectedTagNames,
+        lastModified: bm.lastModified,
+        source: Ci.nsINavBookmarksService.SOURCE_DEFAULT,
+        isTagging: false,
+      },
+    ]);
+  }
+
+  info("Test removing tags from bookmark");
+  for (const removedLength of [1, 2, 3]) {
+    const removedTags = tagFolders.splice(0, removedLength);
+
+    const observer = expectPlacesObserverNotifications([
+      "bookmark-tags-changed",
+    ]);
+
+    // We can remove multiple tags at one time.
+    await PlacesUtils.bookmarks.remove(removedTags);
+
+    const expectedResults = [];
+
+    for (let i = 0; i < removedLength; i++) {
+      TAG_NAMES.splice(0, 1);
+      const expectedTagNames = [...TAG_NAMES];
+
+      expectedResults.push({
+        type: "bookmark-tags-changed",
+        id: itemId,
+        itemType: bm.type,
+        url: bm.url,
+        guid: bm.guid,
+        parentGuid: bm.parentGuid,
+        tags: expectedTagNames,
+        lastModified: bm.lastModified,
+        source: Ci.nsINavBookmarksService.SOURCE_DEFAULT,
+        isTagging: false,
+      });
+    }
+
+    observer.check(expectedResults);
+  }
+});
+
 add_task(async function eraseEverything_notification() {
   // Let's start from a clean situation.
   await PlacesUtils.bookmarks.eraseEverything();
@@ -993,35 +1070,3 @@
     },
   ]);
 });
-
-function expectNotifications() {
-  let notifications = [];
-  let observer = new Proxy(NavBookmarkObserver, {
-    get(target, name) {
-      if (name == "check") {
-        PlacesUtils.bookmarks.removeObserver(observer);
-        return expectedNotifications =>
-          Assert.deepEqual(notifications, expectedNotifications);
-      }
-
-      if (name.startsWith("onItem")) {
-        return (...origArgs) => {
-          let args = Array.from(origArgs, arg => {
-            if (arg && arg instanceof Ci.nsIURI) {
-              return new URL(arg.spec);
-            }
-            return arg;
-          });
-          notifications.push({ name, arguments: args });
-        };
-      }
-
-      if (name in target) {
-        return target[name];
-      }
-      return undefined;
-    },
-  });
-  PlacesUtils.bookmarks.addObserver(observer);
-  return observer;
-}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/bookmarks/test_nsINavBookmarkObserver.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/bookmarks/test_nsINavBookmarkObserver.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/bookmarks/test_nsINavBookmarkObserver.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/bookmarks/test_nsINavBookmarkObserver.js	2021-10-20 19:28:50.000000000 +0000
@@ -1,7 +1,7 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
-// Tests that each nsINavBookmarksObserver method gets the correct input.
+// Tests that each bookmark event gets the correct input.
 
 var gUnfiledFolderId;
 
@@ -35,34 +35,9 @@
     }
   },
 
-  validate(aMethodName, aArguments) {
-    Assert.equal(this.expected[0].name, aMethodName);
-
-    let args = this.expected.shift().args;
-    Assert.equal(aArguments.length, args.length);
-    for (let i = 0; i < aArguments.length; i++) {
-      Assert.ok(
-        args[i].check(aArguments[i]),
-        aMethodName + "(args[" + i + "]: " + args[i].name + ")"
-      );
-    }
-
-    if (this.expected.length === 0) {
-      this.deferred.resolve();
-    }
-  },
-
   handlePlacesEvents(events) {
     this.validateEvents(events);
   },
-
-  // nsINavBookmarkObserver
-  onItemChanged() {
-    return this.validate("onItemChanged", arguments);
-  },
-
-  // nsISupports
-  QueryInterface: ChromeUtils.generateQI(["nsINavBookmarkObserver"]),
 };
 
 var gBookmarkSkipObserver = {
@@ -88,29 +63,12 @@
     }
   },
 
-  validate(aMethodName) {
-    Assert.equal(this.expected.shift(), aMethodName);
-    if (this.expected.length === 0) {
-      this.deferred.resolve();
-    }
-  },
-
   handlePlacesEvents(events) {
     this.validateEvents(events);
   },
-
-  // nsINavBookmarkObserver
-  onItemChanged() {
-    return this.validate("onItemChanged", arguments);
-  },
-
-  // nsISupports
-  QueryInterface: ChromeUtils.generateQI(["nsINavBookmarkObserver"]),
 };
 
 add_task(async function setup() {
-  PlacesUtils.bookmarks.addObserver(gBookmarksObserver);
-  PlacesUtils.bookmarks.addObserver(gBookmarkSkipObserver);
   gUnfiledFolderId = await PlacesUtils.promiseItemId(
     PlacesUtils.bookmarks.unfiledGuid
   );
@@ -125,6 +83,7 @@
       "bookmark-added",
       "bookmark-removed",
       "bookmark-moved",
+      "bookmark-tags-changed",
       "bookmark-title-changed",
     ],
     gBookmarksObserver.handlePlacesEvents
@@ -134,6 +93,7 @@
       "bookmark-added",
       "bookmark-removed",
       "bookmark-moved",
+      "bookmark-tags-changed",
       "bookmark-title-changed",
     ],
     gBookmarkSkipObserver.handlePlacesEvents
@@ -268,7 +228,7 @@
   await promise;
 });
 
-add_task(async function onItemChanged_title_bookmark() {
+add_task(async function bookmarkTitleChanged() {
   let bm = await PlacesUtils.bookmarks.fetch({
     parentGuid: PlacesUtils.bookmarks.unfiledGuid,
     index: 0,
@@ -304,7 +264,7 @@
   await promise;
 });
 
-add_task(async function onItemChanged_tags_bookmark() {
+add_task(async function bookmarkTagsChanged() {
   let bm = await PlacesUtils.bookmarks.fetch({
     parentGuid: PlacesUtils.bookmarks.unfiledGuid,
     index: 0,
@@ -312,7 +272,10 @@
   let uri = Services.io.newURI(bm.url.href);
   const TAG = "tag";
   let promise = Promise.all([
-    gBookmarkSkipObserver.setup(["onItemChanged", "onItemChanged"]),
+    gBookmarkSkipObserver.setup([
+      "bookmark-tags-changed",
+      "bookmark-tags-changed",
+    ]),
     gBookmarksObserver.setup([
       {
         eventType: "bookmark-added", // This is the tag folder.
@@ -371,18 +334,13 @@
         ],
       },
       {
-        name: "onItemChanged",
+        eventType: "bookmark-tags-changed",
         args: [
-          { name: "itemId", check: v => typeof v == "number" && v > 0 },
-          { name: "property", check: v => v === "tags" },
-          { name: "isAnno", check: v => v === false },
-          { name: "newValue", check: v => v === "" },
-          { name: "lastModified", check: v => typeof v == "number" && v > 0 },
+          { name: "id", check: v => typeof v == "number" && v > 0 },
           {
             name: "itemType",
             check: v => v === PlacesUtils.bookmarks.TYPE_BOOKMARK,
           },
-          { name: "parentId", check: v => v === gUnfiledFolderId },
           {
             name: "guid",
             check: v => typeof v == "string" && PlacesUtils.isValidGuid(v),
@@ -391,12 +349,16 @@
             name: "parentGuid",
             check: v => typeof v == "string" && PlacesUtils.isValidGuid(v),
           },
-          { name: "oldValue", check: v => typeof v == "string" },
+          { name: "lastModified", check: v => typeof v == "number" && v > 0 },
           {
             name: "source",
             check: v =>
               Object.values(PlacesUtils.bookmarks.SOURCES).includes(v),
           },
+          {
+            name: "isTagging",
+            check: v => v === false,
+          },
         ],
       },
       {
@@ -425,20 +387,14 @@
           },
         ],
       },
-
       {
-        name: "onItemChanged",
+        eventType: "bookmark-tags-changed",
         args: [
-          { name: "itemId", check: v => typeof v == "number" && v > 0 },
-          { name: "property", check: v => v === "tags" },
-          { name: "isAnno", check: v => v === false },
-          { name: "newValue", check: v => v === "" },
-          { name: "lastModified", check: v => typeof v == "number" && v > 0 },
+          { name: "id", check: v => typeof v == "number" && v > 0 },
           {
             name: "itemType",
             check: v => v === PlacesUtils.bookmarks.TYPE_BOOKMARK,
           },
-          { name: "parentId", check: v => v === gUnfiledFolderId },
           {
             name: "guid",
             check: v => typeof v == "string" && PlacesUtils.isValidGuid(v),
@@ -447,12 +403,16 @@
             name: "parentGuid",
             check: v => typeof v == "string" && PlacesUtils.isValidGuid(v),
           },
-          { name: "oldValue", check: v => typeof v == "string" },
+          { name: "lastModified", check: v => typeof v == "number" && v > 0 },
           {
             name: "source",
             check: v =>
               Object.values(PlacesUtils.bookmarks.SOURCES).includes(v),
           },
+          {
+            name: "isTagging",
+            check: v => v === false,
+          },
         ],
       },
       {
@@ -952,14 +912,24 @@
 });
 
 add_task(function cleanup() {
-  PlacesUtils.bookmarks.removeObserver(gBookmarksObserver);
-  PlacesUtils.bookmarks.removeObserver(gBookmarkSkipObserver);
   PlacesUtils.observers.removeListener(
-    ["bookmark-added"],
+    [
+      "bookmark-added",
+      "bookmark-removed",
+      "bookmark-moved",
+      "bookmark-tags-changed",
+      "bookmark-title-changed",
+    ],
     gBookmarksObserver.handlePlacesEvents
   );
   PlacesUtils.observers.removeListener(
-    ["bookmark-added"],
+    [
+      "bookmark-added",
+      "bookmark-removed",
+      "bookmark-moved",
+      "bookmark-tags-changed",
+      "bookmark-title-changed",
+    ],
     gBookmarkSkipObserver.handlePlacesEvents
   );
 });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/browser/history_post.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/browser/history_post.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/browser/history_post.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/browser/history_post.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine("1.0", 200, "OK");
   response.setHeader("Content-Type", "text/plain; charset=utf-8", false);
   response.write("Ciao");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/browser/redirect_once.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/browser/redirect_once.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/browser/redirect_once.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/browser/redirect_once.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -5,5 +5,9 @@
 
 function handleRequest(request, response) {
   response.setStatusLine("1.1", 301, "Found");
-  response.setHeader("Location", "http://test1.example.com/tests/toolkit/components/places/tests/browser/final.html", false);
+  response.setHeader(
+    "Location",
+    "http://test1.example.com/tests/toolkit/components/places/tests/browser/final.html",
+    false
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/browser/redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/browser/redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/browser/redirect.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/browser/redirect.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -2,8 +2,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   let page = "<!DOCTYPE html><html><body><p>Redirecting...</p></body></html>";
 
   response.setStatusLine(request.httpVersion, "301", "Moved Permanently");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/chrome/head.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/chrome/head.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/chrome/head.js	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/chrome/head.js	2021-10-20 19:28:50.000000000 +0000
@@ -2,18 +2,8 @@
   "resource://gre/modules/XPCOMUtils.jsm"
 );
 
-ChromeUtils.defineModuleGetter(
-  this,
-  "PlacesTestUtils",
-  "resource://testing-common/PlacesTestUtils.jsm"
-);
-ChromeUtils.defineModuleGetter(
-  this,
-  "PlacesUtils",
-  "resource://gre/modules/PlacesUtils.jsm"
-);
-ChromeUtils.defineModuleGetter(
-  this,
-  "NetUtil",
-  "resource://gre/modules/NetUtil.jsm"
-);
+XPCOMUtils.defineLazyModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.jsm",
+  PlacesUtils: "resource://gre/modules/PlacesUtils.jsm",
+  Services: "resource://gre/modules/Services.jsm",
+});
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/chrome/test_371798.xhtml firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/chrome/test_371798.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/chrome/test_371798.xhtml	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/chrome/test_371798.xhtml	2021-10-20 19:28:51.000000000 +0000
@@ -5,22 +5,17 @@
 <window title="Bug 371798"
   xmlns:html="http://www.w3.org/1999/xhtml"
   xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
-  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
+<script type="application/javascript" src="head.js" />
 
-  <body xmlns="http://www.w3.org/1999/xhtml" />
+<body xmlns="http://www.w3.org/1999/xhtml" />
 
 <script type="application/javascript">
 <![CDATA[
 // Test the asynchronous live-updating of bookmarks query results
 SimpleTest.waitForExplicitFinish();
 
-ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
-const {NetUtil} = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
-
-const {PlacesUtils} = ChromeUtils.import("resource://gre/modules/PlacesUtils.jsm");
-const {PlacesTestUtils} = ChromeUtils.import("resource://testing-common/PlacesTestUtils.jsm");
-
-const TEST_URI = NetUtil.newURI("http://foo.com");
+const TEST_URI = Services.io.newURI("http://foo.com");
 
 (async function() {
   // add 2 bookmarks to the toolbar, same URI, different titles (set later)
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/chrome/test_favicon_annotations.xhtml firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/chrome/test_favicon_annotations.xhtml
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/chrome/test_favicon_annotations.xhtml	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/chrome/test_favicon_annotations.xhtml	2021-10-20 19:28:50.000000000 +0000
@@ -107,14 +107,14 @@
     var systemPrincipal = Cc["@mozilla.org/systemprincipal;1"]
                             .createInstance(Ci.nsIPrincipal);
     PlacesUtils.favicons.replaceFaviconDataFromDataURL(
-      NetUtil.newURI(tests[1].url),
+      Services.io.newURI(tests[1].url),
       tests[1].expectedIcon,
       (Date.now() + 86400) * 1000,
       systemPrincipal);
     info("Set favicon data");
     PlacesUtils.favicons.setAndFetchFaviconForPage(
-      NetUtil.newURI("http://example.com/favicon_annotations"),
-      NetUtil.newURI(tests[1].url),
+      Services.io.newURI("http://example.com/favicon_annotations"),
+      Services.io.newURI(tests[1].url),
       true, PlacesUtils.favicons.FAVICON_LOAD_NON_PRIVATE, null,
       systemPrincipal);
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/unit/test_bookmark-tags-changed_frequency.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/unit/test_bookmark-tags-changed_frequency.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/unit/test_bookmark-tags-changed_frequency.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/unit/test_bookmark-tags-changed_frequency.js	2021-10-20 19:28:50.000000000 +0000
@@ -0,0 +1,57 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// This test checks that changing a tag for a bookmark with multiple tags
+// notifies bookmark-tags-changed event only once, and not once per tag.
+
+add_task(async function run_test() {
+  let tags = ["a", "b", "c"];
+  let uri = Services.io.newURI("http://1.moz.org/");
+
+  let bookmark = await PlacesUtils.bookmarks.insert({
+    parentGuid: PlacesUtils.bookmarks.unfiledGuid,
+    url: uri,
+    title: "Bookmark 1",
+  });
+  PlacesUtils.tagging.tagURI(uri, tags);
+
+  let promise = PromiseUtils.defer();
+
+  let bookmarksObserver = {
+    _changedCount: 0,
+    handlePlacesEvents(events) {
+      for (let event of events) {
+        switch (event.type) {
+          case "bookmark-removed":
+            if (event.guid == bookmark.guid) {
+              PlacesUtils.observers.removeListener(
+                ["bookmark-removed"],
+                this.handlePlacesEvents
+              );
+              Assert.equal(this._changedCount, 2);
+              promise.resolve();
+            }
+            break;
+          case "bookmark-tags-changed":
+            Assert.equal(event.guid, bookmark.guid);
+            this._changedCount++;
+            break;
+        }
+      }
+    },
+  };
+  bookmarksObserver.handlePlacesEvents = bookmarksObserver.handlePlacesEvents.bind(
+    bookmarksObserver
+  );
+  PlacesUtils.observers.addListener(
+    ["bookmark-removed", "bookmark-tags-changed"],
+    bookmarksObserver.handlePlacesEvents
+  );
+
+  PlacesUtils.tagging.tagURI(uri, ["d"]);
+  PlacesUtils.tagging.tagURI(uri, ["e"]);
+
+  await promise;
+
+  await PlacesUtils.bookmarks.remove(bookmark.guid);
+});
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/unit/test_onItemChanged_tags.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/unit/test_onItemChanged_tags.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/unit/test_onItemChanged_tags.js	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/unit/test_onItemChanged_tags.js	1970-01-01 00:00:00.000000000 +0000
@@ -1,70 +0,0 @@
-/* Any copyright is dedicated to the Public Domain.
-   http://creativecommons.org/publicdomain/zero/1.0/ */
-
-// This test checks that changing a tag for a bookmark with multiple tags
-// notifies OnItemChanged("tags") only once, and not once per tag.
-
-add_task(async function run_test() {
-  let tags = ["a", "b", "c"];
-  let uri = Services.io.newURI("http://1.moz.org/");
-
-  let bookmark = await PlacesUtils.bookmarks.insert({
-    parentGuid: PlacesUtils.bookmarks.unfiledGuid,
-    url: uri,
-    title: "Bookmark 1",
-  });
-  PlacesUtils.tagging.tagURI(uri, tags);
-
-  let promise = PromiseUtils.defer();
-
-  let bookmarksObserver = {
-    QueryInterface: ChromeUtils.generateQI(["nsINavBookmarkObserver"]),
-
-    _changedCount: 0,
-    onItemChanged(
-      aItemId,
-      aProperty,
-      aIsAnnotationProperty,
-      aValue,
-      aLastModified,
-      aItemType,
-      aParentId,
-      aGuid
-    ) {
-      if (aProperty == "tags") {
-        Assert.equal(aGuid, bookmark.guid);
-        this._changedCount++;
-      }
-    },
-    handlePlacesEvents(events) {
-      for (let event of events) {
-        switch (event.type) {
-          case "bookmark-removed":
-            if (event.guid == bookmark.guid) {
-              PlacesUtils.observers.removeListener(
-                ["bookmark-removed"],
-                this.handlePlacesEvents
-              );
-              Assert.equal(this._changedCount, 2);
-              promise.resolve();
-            }
-        }
-      }
-    },
-  };
-  PlacesUtils.bookmarks.addObserver(bookmarksObserver);
-  bookmarksObserver.handlePlacesEvents = bookmarksObserver.handlePlacesEvents.bind(
-    bookmarksObserver
-  );
-  PlacesUtils.observers.addListener(
-    ["bookmark-removed"],
-    bookmarksObserver.handlePlacesEvents
-  );
-
-  PlacesUtils.tagging.tagURI(uri, ["d"]);
-  PlacesUtils.tagging.tagURI(uri, ["e"]);
-
-  await promise;
-
-  await PlacesUtils.bookmarks.remove(bookmark.guid);
-});
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/unit/xpcshell.ini firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/unit/xpcshell.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/places/tests/unit/xpcshell.ini	2021-10-17 14:43:03.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/places/tests/unit/xpcshell.ini	2021-10-20 19:28:50.000000000 +0000
@@ -39,6 +39,7 @@
 [test_1606731.js]
 [test_asyncExecuteLegacyQueries.js]
 [test_async_transactions.js]
+[test_bookmark-tags-changed_frequency.js]
 [test_bookmarks_json.js]
 [test_bookmarks_json_corrupt.js]
 [test_bookmarks_html.js]
@@ -75,7 +76,6 @@
 [test_multi_word_tags.js]
 [test_nsINavHistoryViewer.js]
 [test_null_interfaces.js]
-[test_onItemChanged_tags.js]
 [test_origins.js]
 [test_origins_parsing.js]
 [test_pageGuid_bookmarkGuid.js]
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/reader/AboutReader.jsm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/reader/AboutReader.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/reader/AboutReader.jsm	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/reader/AboutReader.jsm	2021-10-20 19:28:50.000000000 +0000
@@ -1309,6 +1309,7 @@
   _enableRecShowHide() {
     let elPocketRecs = this._doc.querySelector(`.pocket-recs`);
     let elCollapseRecs = this._doc.querySelector(`.pocket-collapse-recs`);
+    let elSignUp = this._doc.querySelector(`div.pocket-sign-up-wrapper`);
 
     let toggleRecsVisibility = () => {
       let isClosed = elPocketRecs.classList.contains(`closed`);
@@ -1318,6 +1319,7 @@
       if (isClosed) {
         elPocketRecs.classList.add(`closed`);
         elCollapseRecs.classList.add(`closed`);
+        elSignUp.setAttribute(`hidden`, true);
 
         Services.telemetry.recordEvent(
           "readermode",
@@ -1329,6 +1331,7 @@
       } else {
         elPocketRecs.classList.remove(`closed`);
         elCollapseRecs.classList.remove(`closed`);
+        elSignUp.removeAttribute(`hidden`);
       }
     };
 
@@ -1373,6 +1376,9 @@
 
     elThumb.classList.add(`pocket-rec-thumb`);
     elThumb.setAttribute(`loading`, `lazy`);
+    elThumb.addEventListener(`load`, () => {
+      elThumb.classList.add(`pocket-rec-thumb-loaded`);
+    });
     elThumb.setAttribute(
       `src`,
       `https://img-getpocket.cdn.mozilla.net/132x132/filters:format(jpeg):quality(60):no_upscale():strip_exif()/${thumb}`
@@ -1468,6 +1474,9 @@
 
       elPocketCTAWrapper.hidden = false;
       elPocketCTAWrapper.classList.add(`pocket-cta-container-${ctaVersion}`);
+      elPocketCTAWrapper.classList.add(
+        `pocket-cta-container-${isLoggedInUser ? `logged-in` : `logged-out`}`
+      );
 
       // Set up tracking for sign up buttons
       this._doc.querySelectorAll(`.pocket-sign-up`).forEach(el => {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/reader/content/aboutReader.html firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/reader/content/aboutReader.html
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/reader/content/aboutReader.html	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/reader/content/aboutReader.html	2021-10-20 19:28:50.000000000 +0000
@@ -78,6 +78,7 @@
         <header class="pocket-cta-header">Save anything from across the web in Pocket, your personal library.</header>
         <p class="pocket-cta-subhead">As part of the Firefox family, Pocket provides a quiet, calm space that’s perfect for reading. It strips away all the distractions of the internet so you can really focus.</p>
         <a href="https://getpocket.com/signup?utm_source=firefox_reader&utm_medium=variant_cta_only" class="pocket-btn pocket-sign-up"><strong>Sign up</strong> - it’s free</a>
+        <a href="https://getpocket.com/explore?utm_source=firefox_reader&utm_medium=variant_cta_only" class="pocket-btn pocket-discover-more"><strong>Discover more</strong></a>
       </div>
       <button class="pocket-dismiss-cta"></button>
     </div>
@@ -95,8 +96,8 @@
 
       <div class="pocket-recs"></div>
 
-      <div class="pocket-sign-up">
-        <a href="https://getpocket.com/signup?utm_source=firefox_reader&utm_medium=variant_cta_plus_recs" class="pocket-btn pocket-sign-up"><strong>Sign up</strong> - it’s free</a>
+      <div class="pocket-sign-up-wrapper">
+        <a href="https://getpocket.com/explore?utm_source=firefox_reader&utm_medium=variant_cta_plus_recs" class="pocket-btn pocket-sign-up"><strong>Discover more</strong></a>
       </div>
     </div>
   </div>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/reader/test/getCookies.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/reader/test/getCookies.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/reader/test/getCookies.sjs	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/reader/test/getCookies.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,5 +1,7 @@
 function handleRequest(request, response) {
-  const cookies = request.hasHeader("Cookie") ? request.getHeader("Cookie") : "";
+  const cookies = request.hasHeader("Cookie")
+    ? request.getHeader("Cookie")
+    : "";
   response.write(`
     <!DOCTYPE html>
     <html>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/reader/test/readerModeRandom.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/reader/test/readerModeRandom.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/reader/test/readerModeRandom.sjs	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/reader/test/readerModeRandom.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -17,6 +17,7 @@
 function handleRequest(aRequest, aResponse) {
   aResponse.setStatusLine(aRequest.httpVersion, 200);
   aResponse.setHeader("Content-Type", "text/html", false);
-  aResponse.write(readerModeText + "<p id='rnd'>" + Date.now() + "," + Math.random() + "</p>");
+  aResponse.write(
+    readerModeText + "<p id='rnd'>" + Date.now() + "," + Math.random() + "</p>"
+  );
 }
- 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/remotebrowserutils/tests/browser/307redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/remotebrowserutils/tests/browser/307redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/remotebrowserutils/tests/browser/307redirect.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/remotebrowserutils/tests/browser/307redirect.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 307, "Temporary Redirect");
   let location = request.queryString;
   response.setHeader("Location", location, false);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/remotebrowserutils/tests/browser/coop_header.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/remotebrowserutils/tests/browser/coop_header.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/remotebrowserutils/tests/browser/coop_header.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/remotebrowserutils/tests/browser/coop_header.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   Components.utils.importGlobalProperties(["URLSearchParams"]);
   let query = new URLSearchParams(request.queryString);
 
@@ -20,21 +19,28 @@
       isDownloadPage = true;
     } else if (name === "downloadFile") {
       isDownloadFile = true;
-    } else if (name ==  "coop") {
+    } else if (name == "coop") {
       response.setHeader("Cross-Origin-Opener-Policy", unescape(value), false);
     } else if (name == "coep") {
-      response.setHeader("Cross-Origin-Embedder-Policy", unescape(value), false);
+      response.setHeader(
+        "Cross-Origin-Embedder-Policy",
+        unescape(value),
+        false
+      );
     }
   });
 
   let downloadHTML = "";
   if (isDownloadPage) {
-    [
-     "no-coop", "same-origin", "same-origin-allow-popups",
-    ].forEach(coop => {
+    ["no-coop", "same-origin", "same-origin-allow-popups"].forEach(coop => {
       downloadHTML +=
         '<a href="https://example.com/browser/toolkit/components/remotebrowserutils/tests/browser/coop_header.sjs?downloadFile&' +
-        (coop === "no-coop" ? "" : coop) + '" id="' + coop + '" download>' + unescape(coop) +  '</a> <br>';
+        (coop === "no-coop" ? "" : coop) +
+        '" id="' +
+        coop +
+        '" download>' +
+        unescape(coop) +
+        "</a> <br>";
     });
   }
 
@@ -43,6 +49,10 @@
     response.write("BINARY_DATA");
   } else {
     response.setHeader("Content-Type", "text/html; charset=utf-8", false);
-    response.write("<!DOCTYPE html><html><body><p>Hello world</p> " + downloadHTML + "</body></html>");
+    response.write(
+      "<!DOCTYPE html><html><body><p>Hello world</p> " +
+        downloadHTML +
+        "</body></html>"
+    );
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/remotebrowserutils/tests/browser/print_postdata.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/remotebrowserutils/tests/browser/print_postdata.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/remotebrowserutils/tests/browser/print_postdata.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/remotebrowserutils/tests/browser/print_postdata.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,7 +1,9 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
 function handleRequest(request, response) {
   response.setHeader("Content-Type", "text/plain", false);
@@ -13,8 +15,9 @@
     var avail;
     var bytes = [];
 
-    while ((avail = body.available()) > 0)
+    while ((avail = body.available()) > 0) {
       Array.prototype.push.apply(bytes, body.readByteArray(avail));
+    }
 
     var data = String.fromCharCode.apply(null, bytes);
     if (request.queryString) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/search/SearchEngine.jsm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/search/SearchEngine.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/search/SearchEngine.jsm	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/search/SearchEngine.jsm	2021-10-20 19:28:51.000000000 +0000
@@ -14,6 +14,7 @@
   Region: "resource://gre/modules/Region.jsm",
   SearchUtils: "resource://gre/modules/SearchUtils.jsm",
   Services: "resource://gre/modules/Services.jsm",
+  NimbusFeatures: "resource://nimbus/ExperimentAPI.jsm",
 });
 
 const BinaryInputStream = Components.Constructor(
@@ -126,21 +127,36 @@
       SearchUtils.BROWSER_SEARCH_PREF + "param."
     );
     this.cache = new Map();
+    this.nimbusCache = new Map();
     for (let prefName of this.branch.getChildList("")) {
       this.cache.set(prefName, this.branch.getCharPref(prefName, null));
     }
     this.branch.addObserver("", this, true);
+
+    this.onNimbusUpdate = this.onNimbusUpdate.bind(this);
+    this.onNimbusUpdate();
+    NimbusFeatures.search.onUpdate(this.onNimbusUpdate);
+    NimbusFeatures.search.ready().then(this.onNimbusUpdate);
   },
 
   observe(subject, topic, data) {
     this.cache.set(data, this.branch.getCharPref(data, null));
   },
 
+  onNimbusUpdate() {
+    let extraParams = NimbusFeatures.search.getVariable("extraParams") || [];
+    for (const { key, value } of extraParams) {
+      this.nimbusCache.set(key, value);
+    }
+  },
+
   getPref(prefName) {
     if (!this.cache) {
       this.initCache();
     }
-    return this.cache.get(prefName);
+    return this.nimbusCache.has(prefName)
+      ? this.nimbusCache.get(prefName)
+      : this.cache.get(prefName);
   },
 };
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/search/SearchService.jsm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/search/SearchService.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/search/SearchService.jsm	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/search/SearchService.jsm	2021-10-20 19:28:50.000000000 +0000
@@ -521,7 +521,7 @@
 
     // Something unexpected as happened. In order to recover the original
     // default engine, use the first visible engine which is the best we can do.
-    return this._getSortedEngines(false)[0];
+    return this._sortedVisibleEngines[0];
   },
 
   /**
@@ -1090,7 +1090,7 @@
     // use the user's order information stored in settings.
     this._settings.setAttribute("useSavedOrder", true);
 
-    var engines = this._getSortedEngines(true);
+    var engines = this._sortedEngines;
 
     for (var i = 0; i < engines.length; ++i) {
       engines[i].setAttr("order", i + 1);
@@ -1223,21 +1223,15 @@
   },
 
   /**
-   * Get a sorted array of engines.
-   *
-   * @param {boolean} withHidden
-   *   True if hidden plugins should be included in the result.
+   * Get a sorted array of the visible engines.
    * @returns {Array<SearchEngine>}
-   *   The sorted array.
    */
-  _getSortedEngines(withHidden) {
-    if (withHidden) {
-      return this._sortedEngines;
-    }
 
-    return this._sortedEngines.filter(function(engine) {
-      return !engine.hidden;
-    });
+  get _sortedVisibleEngines() {
+    this.__sortedVisibleEngines = this._sortedEngines.filter(
+      engine => !engine.hidden
+    );
+    return this.__sortedVisibleEngines;
   },
 
   // nsISearchService
@@ -1422,13 +1416,13 @@
   async getEngines() {
     await this.init();
     logConsole.debug("getEngines: getting all engines");
-    return this._getSortedEngines(true);
+    return this._sortedEngines;
   },
 
   async getVisibleEngines() {
     await this.init(true);
     logConsole.debug("getVisibleEngines: getting all visible engines");
-    return this._getSortedEngines(false);
+    return this._sortedVisibleEngines;
   },
 
   async getAppProvidedEngines() {
@@ -1446,7 +1440,7 @@
 
   _getEnginesByExtensionID(extensionID) {
     logConsole.debug("getEngines: getting all engines for", extensionID);
-    var engines = this._getSortedEngines(true).filter(function(engine) {
+    var engines = this._sortedEngines.filter(function(engine) {
       return engine._extensionID == extensionID;
     });
     return engines;
@@ -1999,7 +1993,7 @@
     //
     // This could be further simplified by having our caller pass in
     // newIndexEngine directly instead of newIndex.
-    var newIndexEngine = this._getSortedEngines(false)[newIndex];
+    var newIndexEngine = this._sortedVisibleEngines[newIndex];
     if (!newIndexEngine) {
       throw Components.Exception(
         "moveEngine: Can't find engine to replace!",
@@ -2079,7 +2073,7 @@
       newDefault.hidden ||
       newDefault.name == excludeEngineName
     ) {
-      let sortedEngines = this._getSortedEngines(false);
+      let sortedEngines = this._sortedVisibleEngines;
       let generalSearchEngines = sortedEngines.filter(
         e => e.isGeneralPurposeEngine
       );
@@ -2103,7 +2097,7 @@
       // even if the name is the same as the excluded one (should never happen).
       if (!newDefault) {
         if (!firstVisible) {
-          sortedEngines = this._getSortedEngines(true);
+          sortedEngines = this._sortedEngines;
           firstVisible = sortedEngines.find(e => e.isGeneralPurposeEngine);
           if (!firstVisible) {
             firstVisible = sortedEngines[0];
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/search/tests/xpcshell/data/engineMaker.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/search/tests/xpcshell/data/engineMaker.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/search/tests/xpcshell/data/engineMaker.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/search/tests/xpcshell/data/engineMaker.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -16,7 +16,8 @@
   }
 
   engineData.name = engineData.name || "Generated test engine";
-  engineData.description = engineData.description || "Generated test engine description";
+  engineData.description =
+    engineData.description || "Generated test engine description";
   engineData.method = engineData.method || "GET";
 
   response.setStatusLine(request.httpVersion, 200, "OK");
@@ -27,7 +28,8 @@
  * Create an OpenSearch engine for the given base URL.
  */
 function createOpenSearchEngine(response, engineData) {
-  let params = "", queryString = "";
+  let params = "",
+    queryString = "";
   if (engineData.method == "POST") {
     params = "<Param name='q' value='{searchTerms}'/>";
   } else {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/search/tests/xpcshell/data/searchSuggestions.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/search/tests/xpcshell/data/searchSuggestions.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/search/tests/xpcshell/data/searchSuggestions.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/search/tests/xpcshell/data/searchSuggestions.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,8 +1,8 @@
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
-Cu.import("resource://gre/modules/Timer.jsm");
-Cu.import("resource://gre/modules/NetUtil.jsm");
+let { setTimeout } = ChromeUtils.import("resource://gre/modules/Timer.jsm");
+let { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
 
 Cu.importGlobalProperties(["TextEncoder"]);
 
@@ -130,7 +130,11 @@
     ]);
   } else if (q && q.startsWith("letter ")) {
     let letters = [];
-    for (let charCode = "A".charCodeAt(); charCode <= "Z".charCodeAt(); charCode++) {
+    for (
+      let charCode = "A".charCodeAt();
+      charCode <= "Z".charCodeAt();
+      charCode++
+    ) {
       letters.push("letter " + String.fromCharCode(charCode));
     }
     writeSuggestions(q, letters);
@@ -150,8 +154,10 @@
     setTimeout(() => response.finish(), 10000);
   } else if (request.method == "POST") {
     // This includes headers, not just the body
-    let requestText = NetUtil.readInputStreamToString(request.bodyInputStream,
-                                                      request.bodyInputStream.available());
+    let requestText = NetUtil.readInputStreamToString(
+      request.bodyInputStream,
+      request.bodyInputStream.available()
+    );
     // Only use the last line which contains the encoded params
     let requestLines = requestText.split("\n");
     let postParams = parseQueryString(requestLines[requestLines.length - 1]);
@@ -163,8 +169,8 @@
 
 function parseQueryString(queryString) {
   let query = {};
-  queryString.split('&').forEach(function (val) {
-    let [name, value] = val.split('=');
+  queryString.split("&").forEach(function(val) {
+    let [name, value] = val.split("=");
     query[name] = decodeURIComponent(value).replace(/[+]/g, " ");
   });
   return query;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/search/tests/xpcshell/searchconfigs/test_google.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/search/tests/xpcshell/searchconfigs/test_google.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/search/tests/xpcshell/searchconfigs/test_google.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/search/tests/xpcshell/searchconfigs/test_google.js	2021-10-20 19:28:50.000000000 +0000
@@ -3,6 +3,10 @@
 
 "use strict";
 
+XPCOMUtils.defineLazyModuleGetters(this, {
+  NimbusFeatures: "resource://nimbus/ExperimentAPI.jsm",
+});
+
 const test = new SearchConfigTest({
   identifier: "google",
   aliases: ["@google"],
@@ -64,6 +68,8 @@
 });
 
 add_task(async function setup() {
+  sinon.spy(NimbusFeatures.search, "onUpdate");
+  sinon.stub(NimbusFeatures.search, "ready").resolves();
   await test.setup();
 });
 
@@ -111,4 +117,65 @@
       "Should be including the correct MozParam parameter for the engine"
     );
   }
+
+  // Reset the pref values for next tests
+  for (const testData of TEST_DATA) {
+    defaultBranch.setCharPref("param." + testData.pref, "");
+  }
+});
+
+add_task(async function test_searchConfig_google_with_nimbus() {
+  let sandbox = sinon.createSandbox();
+  // Test a couple of configurations with a MozParam set up.
+  const TEST_DATA = [
+    {
+      locale: "en-US",
+      region: "US",
+      expected: "nimbus_us_param",
+    },
+    {
+      locale: "en-US",
+      region: "GB",
+      expected: "nimbus_row_param",
+    },
+  ];
+
+  Assert.ok(
+    NimbusFeatures.search.onUpdate.called,
+    "Should register an update listener for Nimbus experiments"
+  );
+  // Stub getVariable to populate the cache with our expected data
+  sandbox.stub(NimbusFeatures.search, "getVariable").returns([
+    { key: "google_channel_us", value: "nimbus_us_param" },
+    { key: "google_channel_row", value: "nimbus_row_param" },
+  ]);
+  // Set the pref cache with Nimbus values
+  NimbusFeatures.search.onUpdate.firstCall.args[0]();
+
+  for (const testData of TEST_DATA) {
+    info(`Checking region ${testData.region}, locale ${testData.locale}`);
+    const engines = await test._getEngines(testData.region, testData.locale);
+
+    Assert.ok(
+      engines[0].identifier.startsWith("google"),
+      "Should have the correct engine"
+    );
+    console.log(engines[0]);
+
+    const submission = engines[0].getSubmission("test", URLTYPE_SEARCH_HTML);
+    Assert.ok(
+      NimbusFeatures.search.ready.called,
+      "Should wait for Nimbus to get ready"
+    );
+    Assert.ok(
+      NimbusFeatures.search.getVariable,
+      "Should call NimbusFeatures.search.getVariable to populate the cache"
+    );
+    Assert.ok(
+      submission.uri.query.split("&").includes("channel=" + testData.expected),
+      "Should be including the correct MozParam parameter for the engine"
+    );
+  }
+
+  sandbox.restore();
 });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/telemetry/core/Stopwatch.cpp firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/telemetry/core/Stopwatch.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/telemetry/core/Stopwatch.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/telemetry/core/Stopwatch.cpp	2021-10-20 19:28:50.000000000 +0000
@@ -383,7 +383,7 @@
   } else {
     rv = TelemetryHistogram::Accumulate(histogram.get(), delta);
   }
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsCString markerText = histogram;
     if (!aKey.IsVoid()) {
       markerText.AppendLiteral(":");
@@ -531,7 +531,7 @@
     return false;
   }
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled()) {
     nsAutoCString markerText(timer->GetBHRAnnotationValue());
     if (aAdditionalText.WasPassed()) {
       markerText.Append(",");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/telemetry/Histograms.json firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/telemetry/Histograms.json
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/telemetry/Histograms.json	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/telemetry/Histograms.json	2021-10-20 19:28:51.000000000 +0000
@@ -15886,6 +15886,7 @@
       "Unload_Req_MSE",
       "SPD_Unload_Req_Peer",
       "Remote_Subframes",
+      "Beforeunload",
       "Other"
     ],
     "description": "The common combinations of BFCacheStatus when we determine whether the page can be BFCached or not; If it's BFCached, we record BFCache_Success; Success_Not_Toplevel represents the number of not the only top level document in BrowsingContextGroup's documents that are BFCached, and BFCache_Success includes Success_Not_Toplevel; If it's not and it falls under common failure reasons combinations, we record the corresponding combination; Otherwise, we record Other to indicate this is not a common failure"
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/telemetry/Scalars.yaml firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/telemetry/Scalars.yaml
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/telemetry/Scalars.yaml	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/telemetry/Scalars.yaml	2021-10-20 19:28:49.000000000 +0000
@@ -1233,6 +1233,21 @@
       - 'firefox'
     record_in_processes:
       - 'main'
+  global_privacy_control_enabled:
+    bug_numbers:
+      - 1734185
+    description: >
+      Measures user retention of the Global Privacy Control.
+      0 = never enabled, 1 = enabled, 2 = disabled (but was enabled)
+    expires: never
+    kind: uint
+    notification_emails:
+      - seceng-telemetry@mozilla.com
+    release_channel_collection: opt-out
+    products:
+      - 'firefox'
+    record_in_processes:
+      - 'main'
 
 pwmgr:
   potentially_breached_passwords:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/telemetry/tests/unit/test_PingSender.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/telemetry/tests/unit/test_PingSender.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/telemetry/tests/unit/test_PingSender.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/telemetry/tests/unit/test_PingSender.js	2021-10-20 19:28:50.000000000 +0000
@@ -222,15 +222,23 @@
   // Try to send them using the pingsender.
   testSendingPings(pingPaths);
 
-  // Check the pings
-  for (const d of data) {
+  // Check the pings. We don't have an ordering guarantee, so we move the
+  // elements to a new array when we find them.
+  let data2 = [];
+  while (data.length) {
     let req = await PingServer.promiseNextRequest();
     let ping = decodeRequestPayload(req);
-    Assert.equal(ping.id, d.id, "Should have received the correct ping id.");
+    let idx = data.findIndex(d => d.id == ping.id);
+    Assert.ok(
+      idx >= 0,
+      `Should have received the correct ping id: ${data[idx].id}`
+    );
+    data2.push(data[idx]);
+    data.splice(idx, 1);
   }
 
   // Check that the PingSender removed the pending pings.
-  for (const d of data) {
+  for (const d of data2) {
     await waitForPingDeletion(d.id);
   }
 });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/thumbnails/test/authenticate.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/thumbnails/test/authenticate.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/thumbnails/test/authenticate.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/thumbnails/test/authenticate.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -1,5 +1,4 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   try {
     reallyHandleRequest(request, response);
   } catch (e) {
@@ -8,10 +7,10 @@
   }
 }
 
-
 function reallyHandleRequest(request, response) {
   var match;
-  var requestAuth = true, requestProxyAuth = true;
+  var requestAuth = true,
+    requestProxyAuth = true;
 
   // Allow the caller to drive how authentication is processed via the query.
   // Eg, http://localhost:8888/authenticate.sjs?user=foo&realm=bar
@@ -19,133 +18,178 @@
   // at the beginning of the query string.
   var query = "?" + request.queryString;
 
-  var expected_user = "", expected_pass = "", realm = "mochitest";
-  var proxy_expected_user = "", proxy_expected_pass = "", proxy_realm = "mochi-proxy";
-  var huge = false, plugin = false, anonymous = false;
+  var expected_user = "",
+    expected_pass = "",
+    realm = "mochitest";
+  var proxy_expected_user = "",
+    proxy_expected_pass = "",
+    proxy_realm = "mochi-proxy";
+  var huge = false,
+    plugin = false,
+    anonymous = false;
   var authHeaderCount = 1;
   // user=xxx
   match = /[^_]user=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_user = match[1];
+  }
 
   // pass=xxx
   match = /[^_]pass=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     expected_pass = match[1];
+  }
 
   // realm=xxx
   match = /[^_]realm=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     realm = match[1];
+  }
 
   // proxy_user=xxx
   match = /proxy_user=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_expected_user = match[1];
+  }
 
   // proxy_pass=xxx
   match = /proxy_pass=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_expected_pass = match[1];
+  }
 
   // proxy_realm=xxx
   match = /proxy_realm=([^&]*)/.exec(query);
-  if (match)
+  if (match) {
     proxy_realm = match[1];
+  }
 
   // huge=1
   match = /huge=1/.exec(query);
-  if (match)
+  if (match) {
     huge = true;
+  }
 
   // plugin=1
   match = /plugin=1/.exec(query);
-  if (match)
+  if (match) {
     plugin = true;
+  }
 
   // multiple=1
   match = /multiple=([^&]*)/.exec(query);
-  if (match)
-    authHeaderCount = match[1]+0;
+  if (match) {
+    authHeaderCount = match[1] + 0;
+  }
 
   // anonymous=1
   match = /anonymous=1/.exec(query);
-  if (match)
+  if (match) {
     anonymous = true;
+  }
 
   // Look for an authentication header, if any, in the request.
   //
   // EG: Authorization: Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==
-  // 
+  //
   // This test only supports Basic auth. The value sent by the client is
   // "username:password", obscured with base64 encoding.
 
-  var actual_user = "", actual_pass = "", authHeader, authPresent = false;
+  var actual_user = "",
+    actual_pass = "",
+    authHeader,
+    authPresent = false;
   if (request.hasHeader("Authorization")) {
     authPresent = true;
     authHeader = request.getHeader("Authorization");
     match = /Basic (.+)/.exec(authHeader);
-    if (match.length != 2)
-        throw "Couldn't parse auth header: " + authHeader;
+    if (match.length != 2) {
+      throw "Couldn't parse auth header: " + authHeader;
+    }
 
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
-    if (match.length != 3)
-        throw "Couldn't decode auth header: " + userpass;
+    if (match.length != 3) {
+      throw "Couldn't decode auth header: " + userpass;
+    }
     actual_user = match[1];
     actual_pass = match[2];
-  } 
+  }
 
-  var proxy_actual_user = "", proxy_actual_pass = "";
+  var proxy_actual_user = "",
+    proxy_actual_pass = "";
   if (request.hasHeader("Proxy-Authorization")) {
     authHeader = request.getHeader("Proxy-Authorization");
     match = /Basic (.+)/.exec(authHeader);
-    if (match.length != 2)
-        throw "Couldn't parse auth header: " + authHeader;
+    if (match.length != 2) {
+      throw "Couldn't parse auth header: " + authHeader;
+    }
 
     var userpass = base64ToString(match[1]); // no atob() :-(
     match = /(.*):(.*)/.exec(userpass);
-    if (match.length != 3)
-        throw "Couldn't decode auth header: " + userpass;
+    if (match.length != 3) {
+      throw "Couldn't decode auth header: " + userpass;
+    }
     proxy_actual_user = match[1];
     proxy_actual_pass = match[2];
   }
 
   // Don't request authentication if the credentials we got were what we
   // expected.
-  if (expected_user == actual_user &&
-    expected_pass == actual_pass) {
+  if (expected_user == actual_user && expected_pass == actual_pass) {
     requestAuth = false;
   }
-  if (proxy_expected_user == proxy_actual_user &&
-    proxy_expected_pass == proxy_actual_pass) {
+  if (
+    proxy_expected_user == proxy_actual_user &&
+    proxy_expected_pass == proxy_actual_pass
+  ) {
     requestProxyAuth = false;
   }
 
   if (anonymous) {
     if (authPresent) {
-      response.setStatusLine("1.0", 400, "Unexpected authorization header found");
+      response.setStatusLine(
+        "1.0",
+        400,
+        "Unexpected authorization header found"
+      );
     } else {
       response.setStatusLine("1.0", 200, "Authorization header not found");
     }
-  } else {
-    if (requestProxyAuth) {
-      response.setStatusLine("1.0", 407, "Proxy authentication required");
-      for (i = 0; i < authHeaderCount; ++i)
-        response.setHeader("Proxy-Authenticate", "basic realm=\"" + proxy_realm + "\"", true);
-    } else if (requestAuth) {
-      response.setStatusLine("1.0", 401, "Authentication required");
-      for (i = 0; i < authHeaderCount; ++i)
-        response.setHeader("WWW-Authenticate", "basic realm=\"" + realm + "\"", true);
-    } else {
-      response.setStatusLine("1.0", 200, "OK");
+  } else if (requestProxyAuth) {
+    response.setStatusLine("1.0", 407, "Proxy authentication required");
+    for (i = 0; i < authHeaderCount; ++i) {
+      response.setHeader(
+        "Proxy-Authenticate",
+        'basic realm="' + proxy_realm + '"',
+        true
+      );
+    }
+  } else if (requestAuth) {
+    response.setStatusLine("1.0", 401, "Authentication required");
+    for (i = 0; i < authHeaderCount; ++i) {
+      response.setHeader(
+        "WWW-Authenticate",
+        'basic realm="' + realm + '"',
+        true
+      );
     }
+  } else {
+    response.setStatusLine("1.0", 200, "OK");
   }
 
   response.setHeader("Content-Type", "application/xhtml+xml", false);
   response.write("<html xmlns='http://www.w3.org/1999/xhtml'>");
-  response.write("<p>Login: <span id='ok'>" + (requestAuth ? "FAIL" : "PASS") + "</span></p>\n");
-  response.write("<p>Proxy: <span id='proxy'>" + (requestProxyAuth ? "FAIL" : "PASS") + "</span></p>\n");
+  response.write(
+    "<p>Login: <span id='ok'>" +
+      (requestAuth ? "FAIL" : "PASS") +
+      "</span></p>\n"
+  );
+  response.write(
+    "<p>Proxy: <span id='proxy'>" +
+      (requestProxyAuth ? "FAIL" : "PASS") +
+      "</span></p>\n"
+  );
   response.write("<p>Auth: <span id='auth'>" + authHeader + "</span></p>\n");
   response.write("<p>User: <span id='user'>" + actual_user + "</span></p>\n");
   response.write("<p>Pass: <span id='pass'>" + actual_pass + "</span></p>\n");
@@ -156,23 +200,27 @@
       response.write("123456789\n");
     }
     response.write("</div>");
-    response.write("<span id='footnote'>This is a footnote after the huge content fill</span>");
+    response.write(
+      "<span id='footnote'>This is a footnote after the huge content fill</span>"
+    );
   }
 
   if (plugin) {
-    response.write("<embed id='embedtest' style='width: 400px; height: 100px;' " + 
-           "type='application/x-test'></embed>\n");
+    response.write(
+      "<embed id='embedtest' style='width: 400px; height: 100px;' " +
+        "type='application/x-test'></embed>\n"
+    );
   }
 
   response.write("</html>");
 }
 
-
 // base64 decoder
 //
 // Yoinked from extensions/xml-rpc/src/nsXmlRpcClient.js because btoa()
 // doesn't seem to exist. :-(
 /* Convert Base64 data to a string */
+/* eslint-disable prettier/prettier */
 const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
@@ -183,38 +231,42 @@
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
-const base64Pad = '=';
+/* eslint-enable prettier/prettier */
+const base64Pad = "=";
 
 function base64ToString(data) {
+  var result = "";
+  var leftbits = 0; // number of bits decoded, but yet to be appended
+  var leftdata = 0; // bits decoded, but yet to be appended
+
+  // Convert one by one.
+  for (var i = 0; i < data.length; i++) {
+    var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
+    var padding = data[i] == base64Pad;
+    // Skip illegal characters and whitespace
+    if (c == -1) {
+      continue;
+    }
+
+    // Collect data into leftdata, update bitcount
+    leftdata = (leftdata << 6) | c;
+    leftbits += 6;
+
+    // If we have 8 or more bits, append 8 bits to the result
+    if (leftbits >= 8) {
+      leftbits -= 8;
+      // Append if not padding.
+      if (!padding) {
+        result += String.fromCharCode((leftdata >> leftbits) & 0xff);
+      }
+      leftdata &= (1 << leftbits) - 1;
+    }
+  }
 
-    var result = '';
-    var leftbits = 0; // number of bits decoded, but yet to be appended
-    var leftdata = 0; // bits decoded, but yet to be appended
-
-    // Convert one by one.
-    for (var i = 0; i < data.length; i++) {
-        var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
-        var padding = (data[i] == base64Pad);
-        // Skip illegal characters and whitespace
-        if (c == -1) continue;
-        
-        // Collect data into leftdata, update bitcount
-        leftdata = (leftdata << 6) | c;
-        leftbits += 6;
-
-        // If we have 8 or more bits, append 8 bits to the result
-        if (leftbits >= 8) {
-            leftbits -= 8;
-            // Append if not padding.
-            if (!padding)
-                result += String.fromCharCode((leftdata >> leftbits) & 0xff);
-            leftdata &= (1 << leftbits) - 1;
-        }
-    }
-
-    // If there are any bits left, the base64 string was corrupted
-    if (leftbits)
-        throw Components.Exception('Corrupted base64 string');
+  // If there are any bits left, the base64 string was corrupted
+  if (leftbits) {
+    throw Components.Exception("Corrupted base64 string");
+  }
 
-    return result;
+  return result;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/thumbnails/test/background_red_redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/thumbnails/test/background_red_redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/thumbnails/test/background_red_redirect.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/thumbnails/test/background_red_redirect.sjs	2021-10-20 19:28:49.000000000 +0000
@@ -2,9 +2,12 @@
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
 function handleRequest(aRequest, aResponse) {
- // Set HTTP Status.
- aResponse.setStatusLine(aRequest.httpVersion, 301, "Moved Permanently");
+  // Set HTTP Status.
+  aResponse.setStatusLine(aRequest.httpVersion, 301, "Moved Permanently");
 
- // Set redirect URI.
- aResponse.setHeader("Location", "http://mochi.test:8888/browser/toolkit/components/thumbnails/test/background_red.html");
+  // Set redirect URI.
+  aResponse.setHeader(
+    "Location",
+    "http://mochi.test:8888/browser/toolkit/components/thumbnails/test/background_red.html"
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/thumbnails/test/privacy_cache_control.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/thumbnails/test/privacy_cache_control.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/thumbnails/test/privacy_cache_control.sjs	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/thumbnails/test/privacy_cache_control.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -8,8 +8,9 @@
 
   // Set Cache-Control header.
   let value = aRequest.queryString;
-  if (value)
+  if (value) {
     aResponse.setHeader("Cache-Control", value);
+  }
 
   // Set the response body.
   aResponse.write("<!DOCTYPE html><html><body></body></html>");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/thumbnails/test/thumbnails_background.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/thumbnails/test/thumbnails_background.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/thumbnails/test/thumbnails_background.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/thumbnails/test/thumbnails_background.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -14,8 +14,7 @@
   let opts = {};
   try {
     opts = JSON.parse(decodeURIComponent(req.queryString));
-  }
-  catch (err) {}
+  } catch (err) {}
 
   let setCookieScript = "";
   if (opts.setRedCookie) {
@@ -42,16 +41,30 @@
     `;
   }
 
-  if (req.hasHeader("Cookie") &&
-      req.getHeader("Cookie").split(";").indexOf("red") >= 0) {
-    resp.write('<html style="background: #f00;">' + setCookieScript + '</html>');
+  if (
+    req.hasHeader("Cookie") &&
+    req
+      .getHeader("Cookie")
+      .split(";")
+      .indexOf("red") >= 0
+  ) {
+    resp.write(
+      '<html style="background: #f00;">' + setCookieScript + "</html>"
+    );
     resp.finish();
     return;
   }
 
-  if (req.hasHeader("Cookie") &&
-      req.getHeader("Cookie").split(";").indexOf("green") >= 0) {
-    resp.write('<html style="background: #0f0;">' + setCookieScript + '</html>');
+  if (
+    req.hasHeader("Cookie") &&
+    req
+      .getHeader("Cookie")
+      .split(";")
+      .indexOf("green") >= 0
+  ) {
+    resp.write(
+      '<html style="background: #0f0;">' + setCookieScript + "</html>"
+    );
     resp.finish();
     return;
   }
@@ -65,15 +78,22 @@
 
   if (opts.wait) {
     resp.write("Waiting " + opts.wait + " ms... ");
-    timer = Components.classes["@mozilla.org/timer;1"].
-            createInstance(Components.interfaces.nsITimer);
-    timer.init(function ding() {
-      resp.write("OK!");
-      resp.finish();
-    }, opts.wait, Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+    timer = Components.classes["@mozilla.org/timer;1"].createInstance(
+      Components.interfaces.nsITimer
+    );
+    timer.init(
+      function ding() {
+        resp.write("OK!");
+        resp.finish();
+      },
+      opts.wait,
+      Components.interfaces.nsITimer.TYPE_ONE_SHOT
+    );
     return;
   }
 
-  resp.write("<pre>" + JSON.stringify(opts, undefined, 2) + "</pre>" + setCookieScript);
+  resp.write(
+    "<pre>" + JSON.stringify(opts, undefined, 2) + "</pre>" + setCookieScript
+  );
   resp.finish();
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/thumbnails/test/thumbnails_update.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/thumbnails/test/thumbnails_update.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/thumbnails/test/thumbnails_update.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/thumbnails/test/thumbnails_update.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -1,56 +1,57 @@
-/* Any copyright is dedicated to the Public Domain.
-   http://creativecommons.org/publicdomain/zero/1.0/ */
-
-// This server-side script is used for browser_thumbnails_update.  One of the
-// main things it must do in all cases is ensure a Cache-Control: no-store
-// header, so the foreground capture doesn't interfere with the testing.
-
-// If the querystring is "simple", then all it does it return some content -
-// it doesn't really matter what that content is.
-
-// Otherwise, its main role is that it must return different *content* for the
-// second request than it did for the first.
-// Also, it should be able to return an error response when requested for the
-// second response.
-// So the basic tests will be to grab the thumbnail, then request it to be
-// grabbed again:
-// * If the second request succeeded, the new thumbnail should exist.
-// * If the second request is an error, the new thumbnail should be ignored.
-
-function handleRequest(aRequest, aResponse) {
-  aResponse.setHeader("Content-Type", "text/html;charset=utf-8", false);
-  // we want to disable gBrowserThumbnails on-load capture for these responses,
-  // so set as a "no-store" response.
-  aResponse.setHeader("Cache-Control", "no-store");
-
-  // for the simple test - just return some content.
-  if (aRequest.queryString == "simple") {
-    aResponse.write("<html><body></body></html>");
-    aResponse.setStatusLine(aRequest.httpVersion, 200, "Its simply OK");
-    return;
-  }
-
-  // it's one of the more complex tests where the first request for the given
-  // URL must return different content than the second, and possibly an error
-  // response for the second
-  let doneError = getState(aRequest.queryString);
-  if (!doneError) {
-    // first request - return a response with a green body and 200 response.
-    aResponse.setStatusLine(aRequest.httpVersion, 200, "OK - It's green");
-    aResponse.write("<html><body bgcolor=00ff00></body></html>");
-    // set the  state so the next request does the "second request" thing below.
-    setState(aRequest.queryString, "yep");
-  } else {
-    // second request - this will be done by the b/g service.
-    // We always return a red background, but depending on the query string we
-    // return either a 200 or 401 response.
-    if (aRequest.queryString == "fail")
-      aResponse.setStatusLine(aRequest.httpVersion, 401, "Oh no you don't");
-    else
-      aResponse.setStatusLine(aRequest.httpVersion, 200, "OK - It's red");
-    aResponse.write("<html><body bgcolor=ff0000></body></html>");
-    // reset the error state incase this ends up being reused for the
-    // same url and querystring.
-    setState(aRequest.queryString, "");
-  }
-}
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// This server-side script is used for browser_thumbnails_update.  One of the
+// main things it must do in all cases is ensure a Cache-Control: no-store
+// header, so the foreground capture doesn't interfere with the testing.
+
+// If the querystring is "simple", then all it does it return some content -
+// it doesn't really matter what that content is.
+
+// Otherwise, its main role is that it must return different *content* for the
+// second request than it did for the first.
+// Also, it should be able to return an error response when requested for the
+// second response.
+// So the basic tests will be to grab the thumbnail, then request it to be
+// grabbed again:
+// * If the second request succeeded, the new thumbnail should exist.
+// * If the second request is an error, the new thumbnail should be ignored.
+
+function handleRequest(aRequest, aResponse) {
+  aResponse.setHeader("Content-Type", "text/html;charset=utf-8", false);
+  // we want to disable gBrowserThumbnails on-load capture for these responses,
+  // so set as a "no-store" response.
+  aResponse.setHeader("Cache-Control", "no-store");
+
+  // for the simple test - just return some content.
+  if (aRequest.queryString == "simple") {
+    aResponse.write("<html><body></body></html>");
+    aResponse.setStatusLine(aRequest.httpVersion, 200, "Its simply OK");
+    return;
+  }
+
+  // it's one of the more complex tests where the first request for the given
+  // URL must return different content than the second, and possibly an error
+  // response for the second
+  let doneError = getState(aRequest.queryString);
+  if (!doneError) {
+    // first request - return a response with a green body and 200 response.
+    aResponse.setStatusLine(aRequest.httpVersion, 200, "OK - It's green");
+    aResponse.write("<html><body bgcolor=00ff00></body></html>");
+    // set the  state so the next request does the "second request" thing below.
+    setState(aRequest.queryString, "yep");
+  } else {
+    // second request - this will be done by the b/g service.
+    // We always return a red background, but depending on the query string we
+    // return either a 200 or 401 response.
+    if (aRequest.queryString == "fail") {
+      aResponse.setStatusLine(aRequest.httpVersion, 401, "Oh no you don't");
+    } else {
+      aResponse.setStatusLine(aRequest.httpVersion, 200, "OK - It's red");
+    }
+    aResponse.write("<html><body bgcolor=ff0000></body></html>");
+    // reset the error state incase this ends up being reused for the
+    // same url and querystring.
+    setState(aRequest.queryString, "");
+  }
+}
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/cache.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/cache.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/cache.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/cache.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -3,15 +3,16 @@
  */
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var idx = val.indexOf('=');
+  request.queryString.split("&").forEach(function(val) {
+    var idx = val.indexOf("=");
     query[val.slice(0, idx)] = unescape(val.slice(idx + 1));
   });
 
@@ -23,10 +24,10 @@
     // 1. All the full hashes for a given list
     // 2. All the lists we have right now
     // data is separate by '\n'
-    let list = query["list"];
+    let list = query.list;
     let hashes = getState(list);
 
-    let hash = base64ToString(query["fullhash"]);
+    let hash = base64ToString(query.fullhash);
     hashes += hash + "\n";
     setState(list, hashes);
 
@@ -37,8 +38,8 @@
     }
 
     return;
-  // gethash count return how many gethash request received.
-  // This is used by client to know if a gethash request is triggered by gecko
+    // gethash count return how many gethash request received.
+    // This is used by client to know if a gethash request is triggered by gecko
   } else if ("gethashcount" == request.queryString) {
     var counter = getState("counter");
     responseBody = counter == "" ? "0" : counter;
@@ -60,34 +61,36 @@
 
   response.setHeader("Content-Type", "text/plain", false);
   response.write(responseBody);
-
 }
 
 function parseV2Request(bytes) {
   var request = String.fromCharCode.apply(this, bytes);
   var [HEADER, PREFIXES] = request.split("\n");
   var [PREFIXSIZE, LENGTH] = HEADER.split(":").map(val => {
-      return parseInt(val);
-    });
+    return parseInt(val);
+  });
 
   var ret = "";
-  for(var start = 0; start < LENGTH; start += PREFIXSIZE) {
-    getState("lists").split("\n").forEach(function(list) {
-      var completions = getState(list).split("\n");
-
-      for (var completion of completions) {
-        if (completion.indexOf(PREFIXES.substr(start, PREFIXSIZE)) == 0) {
-          ret += list + ":" + "1" + ":" + "32" + "\n";
-          ret += completion;
+  for (var start = 0; start < LENGTH; start += PREFIXSIZE) {
+    getState("lists")
+      .split("\n")
+      .forEach(function(list) {
+        var completions = getState(list).split("\n");
+
+        for (var completion of completions) {
+          if (completion.indexOf(PREFIXES.substr(start, PREFIXSIZE)) == 0) {
+            ret += list + ":" + "1" + ":" + "32" + "\n";
+            ret += completion;
+          }
         }
-      }
-    });
+      });
   }
 
   return ret;
 }
 
 /* Convert Base64 data to a string */
+/* eslint-disable prettier/prettier */
 const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
@@ -98,37 +101,42 @@
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
-const base64Pad = '=';
+/* eslint-enable prettier/prettier */
+const base64Pad = "=";
 
 function base64ToString(data) {
-    var result = '';
-    var leftbits = 0; // number of bits decoded, but yet to be appended
-    var leftdata = 0; // bits decoded, but yet to be appended
-
-    // Convert one by one.
-    for (var i = 0; i < data.length; i++) {
-        var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
-        var padding = (data[i] == base64Pad);
-        // Skip illegal characters and whitespace
-        if (c == -1) continue;
-
-        // Collect data into leftdata, update bitcount
-        leftdata = (leftdata << 6) | c;
-        leftbits += 6;
-
-        // If we have 8 or more bits, append 8 bits to the result
-        if (leftbits >= 8) {
-            leftbits -= 8;
-            // Append if not padding.
-            if (!padding)
-                result += String.fromCharCode((leftdata >> leftbits) & 0xff);
-            leftdata &= (1 << leftbits) - 1;
-        }
+  var result = "";
+  var leftbits = 0; // number of bits decoded, but yet to be appended
+  var leftdata = 0; // bits decoded, but yet to be appended
+
+  // Convert one by one.
+  for (var i = 0; i < data.length; i++) {
+    var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
+    var padding = data[i] == base64Pad;
+    // Skip illegal characters and whitespace
+    if (c == -1) {
+      continue;
     }
 
-    // If there are any bits left, the base64 string was corrupted
-    if (leftbits)
-        throw Components.Exception('Corrupted base64 string');
+    // Collect data into leftdata, update bitcount
+    leftdata = (leftdata << 6) | c;
+    leftbits += 6;
+
+    // If we have 8 or more bits, append 8 bits to the result
+    if (leftbits >= 8) {
+      leftbits -= 8;
+      // Append if not padding.
+      if (!padding) {
+        result += String.fromCharCode((leftdata >> leftbits) & 0xff);
+      }
+      leftdata &= (1 << leftbits) - 1;
+    }
+  }
+
+  // If there are any bits left, the base64 string was corrupted
+  if (leftbits) {
+    throw Components.Exception("Corrupted base64 string");
+  }
 
-    return result;
+  return result;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/gethash.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/gethash.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/gethash.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/gethash.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -1,13 +1,14 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var idx = val.indexOf('=');
+  request.queryString.split("&").forEach(function(val) {
+    var idx = val.indexOf("=");
     query[val.slice(0, idx)] = unescape(val.slice(idx + 1));
   });
 
@@ -19,10 +20,10 @@
     // 1. All the full hashes for a given list
     // 2. All the lists we have right now
     // data is separate by '\n'
-    let list = query["list"];
+    let list = query.list;
     let hashes = getState(list);
 
-    let hash = base64ToString(query["fullhash"]);
+    let hash = base64ToString(query.fullhash);
     hashes += hash + "\n";
     setState(list, hashes);
 
@@ -33,8 +34,8 @@
     }
 
     return;
-  // gethash count return how many gethash request received.
-  // This is used by client to know if a gethash request is triggered by gecko
+    // gethash count return how many gethash request received.
+    // This is used by client to know if a gethash request is triggered by gecko
   } else if ("gethashcount" == request.queryString) {
     var counter = getState("counter");
     responseBody = counter == "" ? "0" : counter;
@@ -56,34 +57,36 @@
 
   response.setHeader("Content-Type", "text/plain", false);
   response.write(responseBody);
-
 }
 
 function parseV2Request(bytes) {
   var request = String.fromCharCode.apply(this, bytes);
   var [HEADER, PREFIXES] = request.split("\n");
   var [PREFIXSIZE, LENGTH] = HEADER.split(":").map(val => {
-      return parseInt(val);
-    });
+    return parseInt(val);
+  });
 
   var ret = "";
-  for(var start = 0; start < LENGTH; start += PREFIXSIZE) {
-    getState("lists").split("\n").forEach(function(list) {
-      var completions = getState(list).split("\n");
-
-      for (var completion of completions) {
-        if (completion.indexOf(PREFIXES.substr(start, PREFIXSIZE)) == 0) {
-          ret += list + ":" + "1" + ":" + "32" + "\n";
-          ret += completion;
+  for (var start = 0; start < LENGTH; start += PREFIXSIZE) {
+    getState("lists")
+      .split("\n")
+      .forEach(function(list) {
+        var completions = getState(list).split("\n");
+
+        for (var completion of completions) {
+          if (completion.indexOf(PREFIXES.substr(start, PREFIXSIZE)) == 0) {
+            ret += list + ":" + "1" + ":" + "32" + "\n";
+            ret += completion;
+          }
         }
-      }
-    });
+      });
   }
 
   return ret;
 }
 
 /* Convert Base64 data to a string */
+/* eslint-disable prettier/prettier */
 const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
@@ -94,37 +97,42 @@
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
-const base64Pad = '=';
+/* eslint-enable prettier/prettier */
+const base64Pad = "=";
 
 function base64ToString(data) {
-    var result = '';
-    var leftbits = 0; // number of bits decoded, but yet to be appended
-    var leftdata = 0; // bits decoded, but yet to be appended
-
-    // Convert one by one.
-    for (var i = 0; i < data.length; i++) {
-        var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
-        var padding = (data[i] == base64Pad);
-        // Skip illegal characters and whitespace
-        if (c == -1) continue;
-
-        // Collect data into leftdata, update bitcount
-        leftdata = (leftdata << 6) | c;
-        leftbits += 6;
-
-        // If we have 8 or more bits, append 8 bits to the result
-        if (leftbits >= 8) {
-            leftbits -= 8;
-            // Append if not padding.
-            if (!padding)
-                result += String.fromCharCode((leftdata >> leftbits) & 0xff);
-            leftdata &= (1 << leftbits) - 1;
-        }
+  var result = "";
+  var leftbits = 0; // number of bits decoded, but yet to be appended
+  var leftdata = 0; // bits decoded, but yet to be appended
+
+  // Convert one by one.
+  for (var i = 0; i < data.length; i++) {
+    var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
+    var padding = data[i] == base64Pad;
+    // Skip illegal characters and whitespace
+    if (c == -1) {
+      continue;
     }
 
-    // If there are any bits left, the base64 string was corrupted
-    if (leftbits)
-        throw Components.Exception('Corrupted base64 string');
+    // Collect data into leftdata, update bitcount
+    leftdata = (leftdata << 6) | c;
+    leftbits += 6;
+
+    // If we have 8 or more bits, append 8 bits to the result
+    if (leftbits >= 8) {
+      leftbits -= 8;
+      // Append if not padding.
+      if (!padding) {
+        result += String.fromCharCode((leftdata >> leftbits) & 0xff);
+      }
+      leftdata &= (1 << leftbits) - 1;
+    }
+  }
+
+  // If there are any bits left, the base64 string was corrupted
+  if (leftbits) {
+    throw Components.Exception("Corrupted base64 string");
+  }
 
-    return result;
+  return result;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/ping.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/ping.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/ping.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/ping.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,15 +1,14 @@
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var [name, value] = val.split('=');
+  request.queryString.split("&").forEach(function(val) {
+    var [name, value] = val.split("=");
     query[name] = unescape(value);
   });
 
   if (request.method == "POST") {
-    setState(query["id"], "ping");
+    setState(query.id, "ping");
   } else {
-    var value = getState(query["id"]);
+    var value = getState(query.id);
     response.setHeader("Content-Type", "text/plain", false);
     response.write(value);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/report.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/report.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/report.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/report.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -2,7 +2,9 @@
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 const SJS = "report.sjs?";
-const REDIRECT = "mochi.test:8888/chrome/toolkit/components/url-classifier/tests/mochitest/" + SJS;
+const REDIRECT =
+  "mochi.test:8888/chrome/toolkit/components/url-classifier/tests/mochitest/" +
+  SJS;
 
 Components.utils.importGlobalProperties(["URLSearchParams"]);
 
@@ -30,28 +32,27 @@
           </html>`;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var params = new URLSearchParams(request.queryString);
   var action = params.get("action");
 
   if (action === "create-blocked-iframe") {
-    response.setHeader('Cache-Control', 'no-cache', false);
-    response.setHeader('Content-Type', 'text/html; charset=utf-8', false);
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setHeader("Content-Type", "text/html; charset=utf-8", false);
     response.write(createBlockedIframePage());
     return;
   }
 
   if (action === "redirect") {
-    response.setHeader('Cache-Control', 'no-cache', false);
-    response.setHeader('Content-Type', 'text/html; charset=utf-8', false);
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setHeader("Content-Type", "text/html; charset=utf-8", false);
     response.write(createPage());
     return;
   }
 
   if (action === "reporturl") {
-    response.setHeader('Cache-Control', 'no-cache', false);
-    response.setHeader('Content-Type', 'text/html; charset=utf-8', false);
+    response.setHeader("Cache-Control", "no-cache", false);
+    response.setHeader("Content-Type", "text/html; charset=utf-8", false);
     response.write(createPage());
     return;
   }
@@ -60,10 +61,13 @@
     params.delete("action");
     params.append("action", "redirect");
     response.setStatusLine("1.1", 302, "found");
-    response.setHeader("Location",  "https://" + REDIRECT + params.toString(), false);
+    response.setHeader(
+      "Location",
+      "https://" + REDIRECT + params.toString(),
+      false
+    );
     return;
   }
 
   response.write("I don't know action " + action);
-  return;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/threathit.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/threathit.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/threathit.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/threathit.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -2,12 +2,13 @@
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   Components.utils.importGlobalProperties(["URLSearchParams"]);
   let params = new URLSearchParams(request.queryString);
   var action = params.get("action");
@@ -21,17 +22,22 @@
     let state = params.get("list") + params.get("type");
     let dataStr = params.get("data");
     setState(state, dataStr);
-    return;
   } else if (action == "get") {
     let state = params.get("list") + params.get("type");
     responseBody = base64ToString(getState(state));
     response.setStatusLine(request.httpVersion, 200, "OK");
-    response.bodyOutputStream.write(responseBody,
-                                    responseBody.length);
+    response.bodyOutputStream.write(responseBody, responseBody.length);
   } else if (action == "report") {
     let state = params.get("list") + "report";
-    let requestUrl = request.scheme + "://" + request.host + ":" +
-      request.port + request.path + "?" + request.queryString;
+    let requestUrl =
+      request.scheme +
+      "://" +
+      request.host +
+      ":" +
+      request.port +
+      request.path +
+      "?" +
+      request.queryString;
     setState(state, requestUrl);
   } else if (action == "getreport") {
     let state = params.get("list") + "report";
@@ -41,9 +47,10 @@
   }
 }
 
-var base64Pad = '=';
+var base64Pad = "=";
 /* Convert Base64 data to a string */
-var toBinaryTable = [
+/* eslint-disable prettier/prettier */
+const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,62, -1,-1,-1,63,
@@ -53,35 +60,40 @@
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
+/* eslint-enable prettier/prettier */
 
 function base64ToString(data) {
-    var result = '';
-    var leftbits = 0; // number of bits decoded, but yet to be appended
-    var leftdata = 0; // bits decoded, but yet to be appended
-
-    // Convert one by one.
-    for (var i = 0; i < data.length; i++) {
-        var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
-        var padding = (data[i] == base64Pad);
-        // Skip illegal characters and whitespace
-        if (c == -1) continue;
-        // Collect data into leftdata, update bitcount
-        leftdata = (leftdata << 6) | c;
-        leftbits += 6;
-
-        // If we have 8 or more bits, append 8 bits to the result
-        if (leftbits >= 8) {
-            leftbits -= 8;
-            // Append if not padding.
-            if (!padding)
-                result += String.fromCharCode((leftdata >> leftbits) & 0xff);
-            leftdata &= (1 << leftbits) - 1;
-        }
+  var result = "";
+  var leftbits = 0; // number of bits decoded, but yet to be appended
+  var leftdata = 0; // bits decoded, but yet to be appended
+
+  // Convert one by one.
+  for (var i = 0; i < data.length; i++) {
+    var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
+    var padding = data[i] == base64Pad;
+    // Skip illegal characters and whitespace
+    if (c == -1) {
+      continue;
     }
+    // Collect data into leftdata, update bitcount
+    leftdata = (leftdata << 6) | c;
+    leftbits += 6;
+
+    // If we have 8 or more bits, append 8 bits to the result
+    if (leftbits >= 8) {
+      leftbits -= 8;
+      // Append if not padding.
+      if (!padding) {
+        result += String.fromCharCode((leftdata >> leftbits) & 0xff);
+      }
+      leftdata &= (1 << leftbits) - 1;
+    }
+  }
 
-    // If there are any bits left, the base64 string was corrupted
-    if (leftbits)
-        throw Components.Exception('Corrupted base64 string');
+  // If there are any bits left, the base64 string was corrupted
+  if (leftbits) {
+    throw Components.Exception("Corrupted base64 string");
+  }
 
-    return result;
+  return result;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/trackerFrame.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/trackerFrame.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/trackerFrame.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/trackerFrame.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -11,8 +11,7 @@
 const stateReceivedTrackers = "received-trackers";
 const stateResponseType = "response-tracker-with-cookie";
 
-function reset()
-{
+function reset() {
   setState(stateCallback, "");
   setState(stateTrackersWithCookie, "");
   setState(stateTrackersWithoutCookie, "");
@@ -20,8 +19,7 @@
   setState(stateResponseType, "");
 }
 
-function handleRequest(aRequest, aResponse)
-{
+function handleRequest(aRequest, aResponse) {
   let params = new URLSearchParams(aRequest.queryString);
 
   // init the server and tell the server the total number requests to process
@@ -34,16 +32,24 @@
 
     // Prepare the cookie
     aResponse.setHeader("Set-Cookie", "cookie=1234");
-    aResponse.setHeader("Access-Control-Allow-Origin", aRequest.getHeader("Origin"), false);
-    aResponse.setHeader("Access-Control-Allow-Credentials","true", false);
+    aResponse.setHeader(
+      "Access-Control-Allow-Origin",
+      aRequest.getHeader("Origin"),
+      false
+    );
+    aResponse.setHeader("Access-Control-Allow-Credentials", "true", false);
     aResponse.write("begin-test");
-  // register the callback response, the response will be fired after receiving
-  // all the request
+    // register the callback response, the response will be fired after receiving
+    // all the request
   } else if (params.has("callback")) {
     aResponse.processAsync();
     aResponse.setHeader("Content-Type", "text/plain", false);
-    aResponse.setHeader("Access-Control-Allow-Origin", aRequest.getHeader("Origin"), false);
-    aResponse.setHeader("Access-Control-Allow-Credentials","true", false);
+    aResponse.setHeader(
+      "Access-Control-Allow-Origin",
+      aRequest.getHeader("Origin"),
+      false
+    );
+    aResponse.setHeader("Access-Control-Allow-Credentials", "true", false);
 
     setState(stateResponseType, params.get("callback"));
     setObjectState(stateCallback, aResponse);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/update.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/update.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/components/url-classifier/tests/mochitest/update.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/components/url-classifier/tests/mochitest/update.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -1,13 +1,14 @@
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   var query = {};
-  request.queryString.split('&').forEach(function (val) {
-    var idx = val.indexOf('=');
+  request.queryString.split("&").forEach(function(val) {
+    var idx = val.indexOf("=");
     query[val.slice(0, idx)] = unescape(val.slice(idx + 1));
   });
 
@@ -17,10 +18,10 @@
     // 1. All the full hashes for a given list
     // 2. All the lists we have right now
     // data is separate by '\n'
-    let list = query["list"];
+    let list = query.list;
     let hashes = getState(list);
 
-    let hash = base64ToString(query["fullhash"]);
+    let hash = base64ToString(query.fullhash);
     hashes += hash + "\n";
     setState(list, hashes);
 
@@ -48,26 +49,29 @@
 }
 
 function parseV2Request(bytes) {
-  var table = String.fromCharCode.apply(this, bytes).slice(0,-2);
+  var table = String.fromCharCode.apply(this, bytes).slice(0, -2);
 
   var ret = "";
-  getState("lists").split("\n").forEach(function(list) {
-    if (list == table) {
-      var completions = getState(list).split("\n");
-      ret += "n:1000\n"
-      ret += "i:" + list + "\n";
-      ret += "a:1:32:" + 32*(completions.length - 1) + "\n";
+  getState("lists")
+    .split("\n")
+    .forEach(function(list) {
+      if (list == table) {
+        var completions = getState(list).split("\n");
+        ret += "n:1000\n";
+        ret += "i:" + list + "\n";
+        ret += "a:1:32:" + 32 * (completions.length - 1) + "\n";
 
-      for (var completion of completions) {
-        ret += completion;
+        for (var completion of completions) {
+          ret += completion;
+        }
       }
-    }
-  });
+    });
 
   return ret;
 }
 
 /* Convert Base64 data to a string */
+/* eslint-disable prettier/prettier */
 const toBinaryTable = [
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
     -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
@@ -78,37 +82,42 @@
     -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
     41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
 ];
-const base64Pad = '=';
+/* eslint-enable prettier/prettier */
+const base64Pad = "=";
 
 function base64ToString(data) {
-    var result = '';
-    var leftbits = 0; // number of bits decoded, but yet to be appended
-    var leftdata = 0; // bits decoded, but yet to be appended
-
-    // Convert one by one.
-    for (var i = 0; i < data.length; i++) {
-        var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
-        var padding = (data[i] == base64Pad);
-        // Skip illegal characters and whitespace
-        if (c == -1) continue;
-
-        // Collect data into leftdata, update bitcount
-        leftdata = (leftdata << 6) | c;
-        leftbits += 6;
-
-        // If we have 8 or more bits, append 8 bits to the result
-        if (leftbits >= 8) {
-            leftbits -= 8;
-            // Append if not padding.
-            if (!padding)
-                result += String.fromCharCode((leftdata >> leftbits) & 0xff);
-            leftdata &= (1 << leftbits) - 1;
-        }
+  var result = "";
+  var leftbits = 0; // number of bits decoded, but yet to be appended
+  var leftdata = 0; // bits decoded, but yet to be appended
+
+  // Convert one by one.
+  for (var i = 0; i < data.length; i++) {
+    var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
+    var padding = data[i] == base64Pad;
+    // Skip illegal characters and whitespace
+    if (c == -1) {
+      continue;
     }
 
-    // If there are any bits left, the base64 string was corrupted
-    if (leftbits)
-        throw Components.Exception('Corrupted base64 string');
+    // Collect data into leftdata, update bitcount
+    leftdata = (leftdata << 6) | c;
+    leftbits += 6;
+
+    // If we have 8 or more bits, append 8 bits to the result
+    if (leftbits >= 8) {
+      leftbits -= 8;
+      // Append if not padding.
+      if (!padding) {
+        result += String.fromCharCode((leftdata >> leftbits) & 0xff);
+      }
+      leftdata &= (1 << leftbits) - 1;
+    }
+  }
+
+  // If there are any bits left, the base64 string was corrupted
+  if (leftbits) {
+    throw Components.Exception("Corrupted base64 string");
+  }
 
-    return result;
+  return result;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/content/aboutSupport.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/content/aboutSupport.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/content/aboutSupport.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/content/aboutSupport.js	2021-10-20 19:28:51.000000000 +0000
@@ -685,7 +685,6 @@
       ["direct2DEnabled", "#Direct2D"],
       ["windowProtocol", "graphics-window-protocol"],
       ["desktopEnvironment", "graphics-desktop-environment"],
-      "usesTiling",
       "targetFrameRate",
     ];
     for (let feature of featureKeys) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/content/tests/browser/data/post_form_inner.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/content/tests/browser/data/post_form_inner.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/content/tests/browser/data/post_form_inner.sjs	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/content/tests/browser/data/post_form_inner.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -3,21 +3,23 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
-  var body =
-   '<html>\
+function handleRequest(request, response) {
+  var body = "<html>\
     <body>\
-    Inner POST data: ';
+    Inner POST data: ";
 
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
-  var bytes = [], avail = 0;
-  while ((avail = bodyStream.available()) > 0)
-   body += String.fromCharCode.apply(String, bodyStream.readByteArray(avail));
+  var bytes = [],
+    avail = 0;
+  while ((avail = bodyStream.available()) > 0) {
+    body += String.fromCharCode.apply(String, bodyStream.readByteArray(avail));
+  }
 
   body +=
     '<form id="postForm" action="post_form_inner.sjs" method="post">\
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/content/tests/browser/data/post_form_outer.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/content/tests/browser/data/post_form_outer.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/content/tests/browser/data/post_form_outer.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/content/tests/browser/data/post_form_outer.sjs	2021-10-20 19:28:49.000000000 +0000
@@ -3,21 +3,23 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 const CC = Components.Constructor;
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                             "nsIBinaryInputStream",
-                             "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function handleRequest(request, response)
-{
-  var body =
-   '<html>\
+function handleRequest(request, response) {
+  var body = "<html>\
     <body>\
-    Outer POST data: ';
+    Outer POST data: ";
 
   var bodyStream = new BinaryInputStream(request.bodyInputStream);
-  var bytes = [], avail = 0;
-  while ((avail = bodyStream.available()) > 0)
-   body += String.fromCharCode.apply(String, bodyStream.readByteArray(avail));
+  var bytes = [],
+    avail = 0;
+  while ((avail = bodyStream.available()) > 0) {
+    body += String.fromCharCode.apply(String, bodyStream.readByteArray(avail));
+  }
 
   body +=
     '<form id="postForm" action="post_form_outer.sjs" method="post">\
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/content/widgets/browser-custom-element.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/content/widgets/browser-custom-element.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/content/widgets/browser-custom-element.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/content/widgets/browser-custom-element.js	2021-10-20 19:28:50.000000000 +0000
@@ -1803,25 +1803,6 @@
       return origins;
     }
 
-    get processSwitchBehavior() {
-      // If a `remotenessChangeHandler` is attached to this browser, it supports
-      // having its toplevel process switched dynamically in response to
-      // navigations.
-      if (this.hasAttribute("maychangeremoteness")) {
-        return Ci.nsIBrowser.PROCESS_BEHAVIOR_STANDARD;
-      }
-
-      // For backwards compatibility, we need to mark remote, but
-      // non-`allowremote`, frames as `PROCESS_BEHAVIOR_SUBFRAME_ONLY`, as some
-      // tests rely on it.
-      // FIXME: Remove this?
-      if (this.isRemoteBrowser) {
-        return Ci.nsIBrowser.PROCESS_BEHAVIOR_SUBFRAME_ONLY;
-      }
-      // Otherwise, don't allow gecko-initiated toplevel process switches.
-      return Ci.nsIBrowser.PROCESS_BEHAVIOR_DISABLED;
-    }
-
     // This method is replaced by frontend code in order to delay performing the
     // process switch until some async operatin is completed.
     //
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/crashreporter/test/browser/crashreport.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/crashreporter/test/browser/crashreport.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/crashreporter/test/browser/crashreport.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/crashreporter/test/browser/crashreport.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -1,11 +1,12 @@
 const CC = Components.Constructor;
 
-const BinaryInputStream = CC("@mozilla.org/binaryinputstream;1",
-                              "nsIBinaryInputStream",
-                              "setInputStream");
+const BinaryInputStream = CC(
+  "@mozilla.org/binaryinputstream;1",
+  "nsIBinaryInputStream",
+  "setInputStream"
+);
 
-function parseHeaders(data, start)
-{
+function parseHeaders(data, start) {
   let headers = {};
 
   while (true) {
@@ -17,20 +18,20 @@
     }
     let line = data.substring(start, end);
     start = end + 2;
-    if (line == "")
+    if (line == "") {
       // empty line, we're done
       break;
+    }
 
     //XXX: this doesn't handle multi-line headers. do we care?
-    let [name, value] = line.split(':');
+    let [name, value] = line.split(":");
     //XXX: not normalized, should probably use nsHttpHeaders or something
     headers[name] = value.trimLeft();
   }
   return [headers, start];
 }
 
-function parseMultipartForm(request)
-{
+function parseMultipartForm(request) {
   let boundary = null;
   // See if this is a multipart/form-data request, and if so, find the
   // boundary string
@@ -48,8 +49,9 @@
       }
     }
   }
-  if (boundary == null)
+  if (boundary == null) {
     return null;
+  }
 
   let body = new BinaryInputStream(request.bodyInputStream);
   let avail;
@@ -103,16 +105,18 @@
     start = end + 2;
 
     if ("Content-Disposition" in headers) {
-      let bits = headers["Content-Disposition"].split(';');
-      if (bits[0] == 'form-data') {
+      let bits = headers["Content-Disposition"].split(";");
+      if (bits[0] == "form-data") {
         for (let i = 0; i < bits.length; i++) {
           let b = bits[i].trimLeft();
-          if (b.indexOf('name=') == 0) {
+          if (b.indexOf("name=") == 0) {
             //TODO: handle non-ascii here?
             let name = b.substring(6, b.length - 1);
             //TODO: handle multiple-value properties?
-            if (("Content-Type" in headers) &&
-                (headers["Content-Type"] == "application/json")) {
+            if (
+              "Content-Type" in headers &&
+              headers["Content-Type"] == "application/json"
+            ) {
               formData = Object.assign(formData, JSON.parse(part));
             } else {
               formData[name] = part;
@@ -127,56 +131,52 @@
   return formData;
 }
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   if (request.method == "GET") {
     let id = null;
-    for (let p of request.queryString.split('&')) {
-      let [key, value] = p.split('=');
-      if (key == 'id')
+    for (let p of request.queryString.split("&")) {
+      let [key, value] = p.split("=");
+      if (key == "id") {
         id = value;
+      }
     }
     if (id == null) {
       response.setStatusLine(request.httpVersion, 400, "Bad Request");
       response.write("Missing id parameter");
-    }
-    else {
+    } else {
       let data = getState(id);
       if (data == "") {
         response.setStatusLine(request.httpVersion, 404, "Not Found");
         response.write("Not Found");
-      }
-      else {
+      } else {
         response.setHeader("Content-Type", "text/plain", false);
         response.write(data);
       }
     }
-  }
-  else if (request.method == "POST") {
+  } else if (request.method == "POST") {
     let formData = parseMultipartForm(request);
 
-    if (formData && 'upload_file_minidump' in formData) {
+    if (formData && "upload_file_minidump" in formData) {
       response.setHeader("Content-Type", "text/plain", false);
 
-      let uuidGenerator = Cc["@mozilla.org/uuid-generator;1"]
-        .getService(Ci.nsIUUIDGenerator);
+      let uuidGenerator = Cc["@mozilla.org/uuid-generator;1"].getService(
+        Ci.nsIUUIDGenerator
+      );
       let uuid = uuidGenerator.generateUUID().toString();
       // ditch the {}, add bp- prefix
-      uuid = 'bp-' + uuid.substring(1,uuid.length-1);
+      uuid = "bp-" + uuid.substring(1, uuid.length - 1);
 
       let d = JSON.stringify(formData);
       //dump('saving crash report ' + uuid + ': ' + d + '\n');
       setState(uuid, d);
 
       response.write("CrashID=" + uuid + "\n");
-    }
-    else {
-      dump('*** crashreport.sjs: Malformed request?\n');
+    } else {
+      dump("*** crashreport.sjs: Malformed request?\n");
       response.setStatusLine(request.httpVersion, 400, "Bad Request");
       response.write("Missing minidump file");
     }
-  }
-  else {
+  } else {
     response.setStatusLine(request.httpVersion, 405, "Method not allowed");
     response.write("Can't handle HTTP method " + request.method);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/modules/AppConstants.jsm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/modules/AppConstants.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/modules/AppConstants.jsm	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/modules/AppConstants.jsm	2021-10-20 19:28:51.000000000 +0000
@@ -431,4 +431,12 @@
 #else
     false,
 #endif
+  
+  MOZ_JXL:
+#ifdef MOZ_JXL
+    true,
+#else
+    false,
+#endif
+
 });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/modules/tests/browser/browser_Troubleshoot.js firefox-trunk-95.0~a1~hg20211020r596404/toolkit/modules/tests/browser/browser_Troubleshoot.js
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/modules/tests/browser/browser_Troubleshoot.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/modules/tests/browser/browser_Troubleshoot.js	2021-10-20 19:28:50.000000000 +0000
@@ -617,9 +617,6 @@
         directWriteVersion: {
           type: "string",
         },
-        usesTiling: {
-          type: "boolean",
-        },
         clearTypeParameters: {
           type: "string",
         },
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/modules/Troubleshoot.jsm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/modules/Troubleshoot.jsm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/modules/Troubleshoot.jsm	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/modules/Troubleshoot.jsm	2021-10-20 19:28:50.000000000 +0000
@@ -607,7 +607,6 @@
       DWriteEnabled: "directWriteEnabled",
       DWriteVersion: "directWriteVersion",
       cleartypeParameters: "clearTypeParameters",
-      UsesTiling: "usesTiling",
       TargetFrameRate: "targetFrameRate",
       windowProtocol: null,
       desktopEnvironment: null,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/extensions/test/xpinstall/authRedirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/extensions/test/xpinstall/authRedirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/extensions/test/xpinstall/authRedirect.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/extensions/test/xpinstall/authRedirect.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -3,19 +3,19 @@
 
 function handleRequest(request, response) {
   if (request.hasHeader("Authorization")) {
-    if (request.getHeader("Authorization") == "Basic dGVzdHVzZXI6dGVzdHBhc3M=") {
+    if (
+      request.getHeader("Authorization") == "Basic dGVzdHVzZXI6dGVzdHBhc3M="
+    ) {
       response.setStatusLine(request.httpVersion, 302, "Found");
       response.setHeader("Location", request.queryString);
       response.write("See " + request.queryString);
-    }
-    else {
+    } else {
       response.setStatusLine(request.httpVersion, 403, "Forbidden");
       response.write("Invalid credentials");
     }
-  }
-  else {
+  } else {
     response.setStatusLine(request.httpVersion, 401, "Authentication required");
-    response.setHeader("WWW-Authenticate", "basic realm=\"XPInstall\"", false);
+    response.setHeader("WWW-Authenticate", 'basic realm="XPInstall"', false);
     response.write("Unauthenticated request");
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/extensions/test/xpinstall/cookieRedirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/extensions/test/xpinstall/cookieRedirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/extensions/test/xpinstall/cookieRedirect.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/extensions/test/xpinstall/cookieRedirect.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -1,14 +1,14 @@
 // Simple script redirects to the query part of the uri if the cookie "xpinstall"
 // has the value "true", otherwise gives a 500 error.
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   let cookie = null;
   if (request.hasHeader("Cookie")) {
     let cookies = request.getHeader("Cookie").split(";");
     for (let i = 0; i < cookies.length; i++) {
-      if (cookies[i].substring(0, 10) == "xpinstall=")
+      if (cookies[i].substring(0, 10) == "xpinstall=") {
         cookie = cookies[i].substring(10);
+      }
     }
   }
 
@@ -16,8 +16,7 @@
     response.setStatusLine(request.httpVersion, 302, "Found");
     response.setHeader("Location", request.queryString);
     response.write("See " + request.queryString);
-  }
-  else {
+  } else {
     response.setStatusLine(request.httpVersion, 500, "Internal Server Error");
     response.write("Invalid request");
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/extensions/test/xpinstall/hashRedirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/extensions/test/xpinstall/hashRedirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/extensions/test/xpinstall/hashRedirect.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/extensions/test/xpinstall/hashRedirect.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -2,8 +2,7 @@
 // the | character. Anything before is included as the X-Target-Digest header
 // the latter part is used as the url to redirect to
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   let pos = request.queryString.indexOf("|");
   let header = request.queryString.substring(0, pos);
   let url = request.queryString.substring(pos + 1);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/extensions/test/xpinstall/redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/extensions/test/xpinstall/redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/extensions/test/xpinstall/redirect.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/extensions/test/xpinstall/redirect.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -2,36 +2,30 @@
 // parameters from the query string configure the redirection. If the mode is
 // "redirect" then a redirect is returned
 
-function handleRequest(request, response)
-{
+function handleRequest(request, response) {
   let parts = request.queryString.split("&");
   let settings = {};
 
   parts.forEach(function(aString) {
     let [k, v] = aString.split("=");
     settings[k] = decodeURIComponent(v);
-  })
+  });
 
   if (settings.mode == "setup") {
     delete settings.mode;
 
     // Object states must be an nsISupports
     var state = {
-      settings: settings,
-      QueryInterface: function(aIid) {
-        if (aIid.equals(Components.interfaces.nsISupports))
-          return settings;
-        throw Components.results.NS_ERROR_NO_INTERFACE;
-      }
-    }
+      settings,
+      QueryInterface: ChromeUtils.generateQI([]),
+    };
     state.wrappedJSObject = state;
 
     setObjectState("xpinstall-redirect-settings", state);
     response.setStatusLine(request.httpVersion, 200, "Ok");
     response.setHeader("Content-Type", "text/plain");
     response.write("Setup complete");
-  }
-  else if (settings.mode == "redirect") {
+  } else if (settings.mode == "redirect") {
     getObjectState("xpinstall-redirect-settings", function(aObject) {
       settings = aObject.wrappedJSObject.settings;
     });
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/extensions/test/xpinstall/slowinstall.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/extensions/test/xpinstall/slowinstall.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/extensions/test/xpinstall/slowinstall.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/extensions/test/xpinstall/slowinstall.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -1,8 +1,8 @@
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/osfile.jsm");
-Cu.import("resource://gre/modules/NetUtil.jsm");
+let { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+let { OS } = ChromeUtils.import("resource://gre/modules/osfile.jsm");
+let { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
 
-const RELATIVE_PATH = "browser/toolkit/mozapps/extensions/test/xpinstall"
+const RELATIVE_PATH = "browser/toolkit/mozapps/extensions/test/xpinstall";
 const NOTIFICATION_TOPIC = "slowinstall-complete";
 
 /**
@@ -20,8 +20,9 @@
   var params = {};
   for (var i = 0, sz = paramArray.length; i < sz; i++) {
     var match = regex.exec(paramArray[i]);
-    if (!match)
+    if (!match) {
       throw "Bad parameter in queryString!  '" + paramArray[i] + "'";
+    }
     params[decodeURIComponent(match[1])] = decodeURIComponent(match[2]);
   }
 
@@ -38,9 +39,10 @@
 
   aResponse.setStatusLine(aRequest.httpVersion, 200, "OK");
 
-  var params = { };
-  if (aRequest.queryString)
+  var params = {};
+  if (aRequest.queryString) {
     params = parseQueryString(aRequest.queryString);
+  }
 
   if (params.file) {
     let xpiFile = "";
@@ -54,16 +56,16 @@
         // nsIOutputStream so here we are.
         let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
         file.initWithPath(xpiFile);
-        let stream = Cc["@mozilla.org/network/file-input-stream;1"].
-                     createInstance(Ci.nsIFileInputStream);
+        let stream = Cc[
+          "@mozilla.org/network/file-input-stream;1"
+        ].createInstance(Ci.nsIFileInputStream);
         stream.init(file, -1, -1, stream.DEFER_OPEN + stream.CLOSE_ON_EOF);
 
         NetUtil.asyncCopy(stream, aResponse.bodyOutputStream, () => {
           LOG("Download complete");
           aResponse.finish();
         });
-      }
-      catch (e) {
+      } catch (e) {
         LOG("Exception " + e);
       }
     }
@@ -74,7 +76,7 @@
         resolve();
       }
 
-      Services.obs.addObserver(complete, NOTIFICATION_TOPIC, false);
+      Services.obs.addObserver(complete, NOTIFICATION_TOPIC);
     });
 
     aResponse.processAsync();
@@ -91,9 +93,10 @@
         waitForComplete.then(complete_download);
       });
     });
-  }
-  else if (params.continue) {
-    dump("slowinstall.sjs: Received signal to complete all current downloads.\n");
-    Services.obs.notifyObservers(null, NOTIFICATION_TOPIC, null);
+  } else if (params.continue) {
+    dump(
+      "slowinstall.sjs: Received signal to complete all current downloads.\n"
+    );
+    Services.obs.notifyObservers(null, NOTIFICATION_TOPIC);
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/update/tests/data/app_update.sjs firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/update/tests/data/app_update.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/mozapps/update/tests/data/app_update.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/mozapps/update/tests/data/app_update.sjs	2021-10-20 19:28:50.000000000 +0000
@@ -55,7 +55,7 @@
 var gSlowCheckTimer;
 
 function handleRequest(aRequest, aResponse) {
-  let params = { };
+  let params = {};
   if (aRequest.queryString) {
     params = parseQueryString(aRequest.queryString);
   }
@@ -83,33 +83,39 @@
 
     let retries = 0;
     gSlowDownloadTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-    gSlowDownloadTimer.initWithCallback(function(aTimer) {
-      let continueFile = getTestDataFile(CONTINUE_DOWNLOAD);
-      retries++;
-      if (continueFile.exists() || retries == MAX_SLOW_RESPONSE_RETRIES) {
-        try {
-          // If the continue file is in use try again the next time the timer
-          // fires unless the retries has reached the value defined by
-          // MAX_SLOW_RESPONSE_RETRIES in which case let the test remove the
-          // continue file.
-          if (retries < MAX_SLOW_RESPONSE_RETRIES) {
-            continueFile.remove(false);
-          }
-          gSlowDownloadTimer.cancel();
-          aResponse.write(readFileBytes(getTestDataFile(FILE_SIMPLE_MAR)));
-          aResponse.finish();
-        } catch (e) {
+    gSlowDownloadTimer.initWithCallback(
+      function(aTimer) {
+        let continueFile = getTestDataFile(CONTINUE_DOWNLOAD);
+        retries++;
+        if (continueFile.exists() || retries == MAX_SLOW_RESPONSE_RETRIES) {
+          try {
+            // If the continue file is in use try again the next time the timer
+            // fires unless the retries has reached the value defined by
+            // MAX_SLOW_RESPONSE_RETRIES in which case let the test remove the
+            // continue file.
+            if (retries < MAX_SLOW_RESPONSE_RETRIES) {
+              continueFile.remove(false);
+            }
+            gSlowDownloadTimer.cancel();
+            aResponse.write(readFileBytes(getTestDataFile(FILE_SIMPLE_MAR)));
+            aResponse.finish();
+          } catch (e) {}
         }
-      }
-    }, SLOW_RESPONSE_INTERVAL, Ci.nsITimer.TYPE_REPEATING_SLACK);
+      },
+      SLOW_RESPONSE_INTERVAL,
+      Ci.nsITimer.TYPE_REPEATING_SLACK
+    );
     return;
   }
 
   if (params.uiURL) {
-    aResponse.write("<html><head><meta http-equiv=\"content-type\" content=" +
-                    "\"text/html; charset=utf-8\"></head><body>" +
-                    params.uiURL + "<br><br>this is a test mar that will not " +
-                    "affect your build.</body></html>");
+    aResponse.write(
+      '<html><head><meta http-equiv="content-type" content=' +
+        '"text/html; charset=utf-8"></head><body>' +
+        params.uiURL +
+        "<br><br>this is a test mar that will not " +
+        "affect your build.</body></html>"
+    );
     return;
   }
 
@@ -125,10 +131,13 @@
 
   if (params.unsupported) {
     let detailsURL = params.detailsURL ? params.detailsURL : URL_HOST;
-    let unsupportedXML = getRemoteUpdatesXMLString("  <update type=\"major\" " +
-                                                   "unsupported=\"true\" " +
-                                                   "detailsURL=\"" + detailsURL +
-                                                   "\"></update>\n");
+    let unsupportedXML = getRemoteUpdatesXMLString(
+      '  <update type="major" ' +
+        'unsupported="true" ' +
+        'detailsURL="' +
+        detailsURL +
+        '"></update>\n'
+    );
     respond(aResponse, params, unsupportedXML);
     return;
   }
@@ -143,17 +152,13 @@
   }
   if (!params.partialPatchOnly) {
     size = SIZE_SIMPLE_MAR + (params.invalidCompleteSize ? "1" : "");
-    let patchProps = {type: "complete",
-                      url,
-                      size};
+    let patchProps = { type: "complete", url, size };
     patches += getRemotePatchString(patchProps);
   }
 
   if (!params.completePatchOnly) {
     size = SIZE_SIMPLE_MAR + (params.invalidPartialSize ? "1" : "");
-    let patchProps = {type: "partial",
-                      url,
-                      size};
+    let patchProps = { type: "partial", url, size };
     patches += getRemotePatchString(patchProps);
   }
 
@@ -196,25 +201,28 @@
     let retries = 0;
     aResponse.processAsync();
     gSlowCheckTimer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-    gSlowCheckTimer.initWithCallback(function(aTimer) {
-      retries++;
-      let continueFile = getTestDataFile(CONTINUE_CHECK);
-      if (continueFile.exists() || retries == MAX_SLOW_RESPONSE_RETRIES) {
-        try {
-          // If the continue file is in use try again the next time the timer
-          // fires unless the retries has reached the value defined by
-          // MAX_SLOW_RESPONSE_RETRIES in which case let the test remove the
-          // continue file.
-          if (retries < MAX_SLOW_RESPONSE_RETRIES) {
-            continueFile.remove(false);
-          }
-          gSlowCheckTimer.cancel();
-          aResponse.write(aResponseString);
-          aResponse.finish();
-        } catch (e) {
+    gSlowCheckTimer.initWithCallback(
+      function(aTimer) {
+        retries++;
+        let continueFile = getTestDataFile(CONTINUE_CHECK);
+        if (continueFile.exists() || retries == MAX_SLOW_RESPONSE_RETRIES) {
+          try {
+            // If the continue file is in use try again the next time the timer
+            // fires unless the retries has reached the value defined by
+            // MAX_SLOW_RESPONSE_RETRIES in which case let the test remove the
+            // continue file.
+            if (retries < MAX_SLOW_RESPONSE_RETRIES) {
+              continueFile.remove(false);
+            }
+            gSlowCheckTimer.cancel();
+            aResponse.write(aResponseString);
+            aResponse.finish();
+          } catch (e) {}
         }
-      }
-    }, SLOW_RESPONSE_INTERVAL, Ci.nsITimer.TYPE_REPEATING_SLACK);
+      },
+      SLOW_RESPONSE_INTERVAL,
+      Ci.nsITimer.TYPE_REPEATING_SLACK
+    );
   } else {
     aResponse.write(aResponseString);
   }
@@ -238,7 +246,8 @@
     if (!match) {
       throw Components.Exception(
         "Bad parameter in queryString! '" + paramArray[i] + "'",
-        Cr.NS_ERROR_ILLEGAL_VALUE);
+        Cr.NS_ERROR_ILLEGAL_VALUE
+      );
     }
     params[decodeURIComponent(match[1])] = decodeURIComponent(match[2]);
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/themes/osx/global/button.css firefox-trunk-95.0~a1~hg20211020r596404/toolkit/themes/osx/global/button.css
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/themes/osx/global/button.css	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/themes/osx/global/button.css	2021-10-20 19:28:51.000000000 +0000
@@ -23,12 +23,6 @@
   color: -moz-mac-defaultbuttontext;
 }
 
-/* Likewise, when active (mousedown) but not hovering, the default button
- * background isn't drawn, override the previous selector for that case: */
-button:where([default="true"]:active:not(:hover)) {
-  color: ButtonText;
-}
-
 .button-text {
   margin-block: 1px;
   margin-inline: 3px 2px;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/themes/shared/aboutReaderPocket.css firefox-trunk-95.0~a1~hg20211020r596404/toolkit/themes/shared/aboutReaderPocket.css
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/themes/shared/aboutReaderPocket.css	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/themes/shared/aboutReaderPocket.css	2021-10-20 19:28:51.000000000 +0000
@@ -37,10 +37,13 @@
 
 .pocket-cta-header {
   font-weight: 900;
+  font-size: 20px;
+  line-height: 1.2;
 }
 
 .pocket-cta-subhead {
   margin: 4px 0 24px;
+  line-height: 1.5;
 }
 
 .pocket-btn {
@@ -51,6 +54,7 @@
   font-size: 16px;
   padding: 12px 24px;
   text-decoration: none;
+  text-align: center;
 }
 
 .pocket-btn:hover,
@@ -72,7 +76,8 @@
 }
 
 .pocket-btn-add {
-  background: no-repeat left center url("chrome://global/skin/icons/pocket-outline.svg");
+  background: no-repeat left center url("chrome://browser/skin/pocket-outline.svg");
+  fill: #5B5B66;
   background-size: 16px;
   border: 0;
   padding-inline-start: 20px;
@@ -81,7 +86,18 @@
   cursor: pointer;
 }
 
-.pocket-btn-add.saved {
+body.dark .pocket-btn-add {
+  fill: #eee;
+  color: #eee;
+}
+
+.pocket-btn-add:hover,
+body.dark .pocket-btn-add:hover {
+  fill: #EF4056;
+}
+
+.pocket-btn-add.saved,
+body.dark .pocket-btn-add.saved {
   background-image: url("chrome://global/skin/icons/pocket.svg");
 }
 
@@ -104,12 +120,13 @@
 }
 
 .pocket-recs-top .col:nth-child(2) {
-  padding-inline-start: 68px;
+  padding-inline-start: 8px;
 }
 
 .pocket-recs {
   display: flex;
   justify-content: space-between;
+  margin-bottom: 14px;
 }
 
 .pocket-recs.closed {
@@ -121,7 +138,7 @@
 }
 
 .pocket-rec {
-  padding: 30px 0;
+  padding: 16px 0;
   width: 31%;
 }
 
@@ -130,7 +147,7 @@
   text-decoration: none;
 }
 
-.pocket-sign-up {
+.pocket-sign-up-wrapper {
   text-align: center;
 }
 
@@ -139,7 +156,7 @@
   font-weight: bold;
   font-size: 16px;
   line-height: 24px;
-  color: #000000;
+  color: var(--main-foreground);
 }
 
 .pocket-rec .pocket-rec-thumb {
@@ -148,6 +165,11 @@
   filter: drop-shadow(0px 2px 6px rgba(58, 57, 68, 0.2));
   border-radius: 4px;
   margin-inline-start: 16px;
+  visibility: hidden;
+}
+
+.pocket-rec .pocket-rec-thumb.pocket-rec-thumb-loaded {
+  visibility: visible;
 }
 
 .pocket-rec .pocket-rec-meta {
@@ -158,6 +180,15 @@
   color: #5B5B66;
 }
 
+body.dark .pocket-rec .pocket-rec-meta {
+  color: #eee;
+}
+
+.pocket-cta-container-logged-in #pocket-cta-only .pocket-sign-up,
+.pocket-cta-container-logged-out #pocket-cta-only .pocket-discover-more {
+  display: none;
+}
+
 /* Medium breakpoint */
 @media (max-width: 1128px) {
   .pocket-cta-inner {
@@ -172,7 +203,7 @@
     width: 48%;
   }
 
-  .pocket-rec:nth-child(2) {
+  .pocket-rec:nth-child(3) {
     display: none;
   }
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/themes/shared/desktop-jar.inc.mn firefox-trunk-95.0~a1~hg20211020r596404/toolkit/themes/shared/desktop-jar.inc.mn
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/themes/shared/desktop-jar.inc.mn	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/themes/shared/desktop-jar.inc.mn	2021-10-20 19:28:50.000000000 +0000
@@ -63,7 +63,6 @@
   skin/classic/global/icons/plugin-blocked.svg             (../../shared/icons/plugin-blocked.svg)
   skin/classic/global/icons/plus.svg                       (../../shared/icons/plus.svg)
   skin/classic/global/icons/pocket.svg                     (../../shared/icons/pocket.svg)
-  skin/classic/global/icons/pocket-outline.svg             (../../shared/icons/pocket-outline.svg)
   skin/classic/global/icons/print.svg                      (../../shared/icons/print.svg)
   skin/classic/global/icons/undo.svg                       (../../shared/icons/undo.svg)
   skin/classic/global/icons/radio.svg                      (../../shared/icons/radio.svg)
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/themes/shared/icons/pocket-outline.svg firefox-trunk-95.0~a1~hg20211020r596404/toolkit/themes/shared/icons/pocket-outline.svg
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/themes/shared/icons/pocket-outline.svg	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/themes/shared/icons/pocket-outline.svg	1970-01-01 00:00:00.000000000 +0000
@@ -1,7 +0,0 @@
-<!-- This Source Code Form is subject to the terms of the Mozilla Public
-   - License, v. 2.0. If a copy of the MPL was not distributed with this
-   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<svg width="34" height="30" viewBox="0 0 34 30" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path fill-rule="evenodd" clip-rule="evenodd" d="M0.333252 3.33333C0.333252 1.49238 1.82564 0 3.66659 0H30.3333C32.1742 0 33.6666 1.49238 33.6666 3.33333H30.3333H3.66659H0.333252ZM3.66659 3.33333H0.333252V13.3333C0.333252 22.5381 7.79517 30 16.9999 30C26.2047 30 33.6666 22.5381 33.6666 13.3333V3.33333H30.3333V13.3333C30.3333 20.6971 24.3637 26.6667 16.9999 26.6667C9.63612 26.6667 3.66659 20.6971 3.66659 13.3333V3.33333Z" fill="#0C0C0D"/>
-<path fill-rule="evenodd" clip-rule="evenodd" d="M9.15474 10.4882C9.80561 9.83728 10.8609 9.83728 11.5118 10.4882L16.9999 15.9763L22.4881 10.4882C23.1389 9.83728 24.1942 9.83728 24.8451 10.4882C25.496 11.139 25.496 12.1943 24.8451 12.8452L18.1784 19.5118C17.5276 20.1627 16.4723 20.1627 15.8214 19.5118L9.15474 12.8452C8.50387 12.1943 8.50387 11.139 9.15474 10.4882Z" fill="#0c0c0d"/>
-</svg>
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/toolkit/xre/MacRunFromDmgUtils.mm firefox-trunk-95.0~a1~hg20211020r596404/toolkit/xre/MacRunFromDmgUtils.mm
--- firefox-trunk-95.0~a1~hg20211017r596111/toolkit/xre/MacRunFromDmgUtils.mm	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/toolkit/xre/MacRunFromDmgUtils.mm	2021-10-20 19:28:51.000000000 +0000
@@ -425,7 +425,7 @@
     return false;
   }
   const char* imageClass =
-      nsCocoaFeatures::macOSVersionMajor() >= 12 ? "AppleDiskImageDevice" : "IOHDIXHDDrive";
+      nsCocoaFeatures::OnMontereyOrLater() ? "AppleDiskImageDevice" : "IOHDIXHDDrive";
   for (imageDrive = media; imageDrive; imageDrive = IOIteratorNext(iter)) {
     if (IOObjectConformsTo(imageDrive, imageClass)) {
       break;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/codespell.yml firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/codespell.yml
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/codespell.yml	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/codespell.yml	2021-10-20 19:28:51.000000000 +0000
@@ -60,6 +60,7 @@
         - devtools/docs/tools/storage/
         - tools/lint/cpp/mingw-headers.txt
         - tools/lint/test/test_codespell.py
+        - "**/package-lock.json"
     # List of extensions coming from:
     # tools/lint/{flake8,eslint}.yml
     # tools/mach_commands.py (clang-format)
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/lib/environments/privileged.js firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/lib/environments/privileged.js
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/lib/environments/privileged.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/lib/environments/privileged.js	2021-10-20 19:28:51.000000000 +0000
@@ -432,6 +432,7 @@
     PlacesBookmarkGuid: false,
     PlacesBookmarkMoved: false,
     PlacesBookmarkRemoved: false,
+    PlacesBookmarkTags: false,
     PlacesBookmarkTime: false,
     PlacesBookmarkTitle: false,
     PlacesBookmarkUrl: false,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/lib/helpers.js firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/lib/helpers.js
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/lib/helpers.js	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/lib/helpers.js	2021-10-20 19:28:51.000000000 +0000
@@ -706,6 +706,15 @@
     return !!this.getTestType(scope);
   },
 
+  /*
+   * Check if this is an .sjs file.
+   */
+  getIsSjs(scope) {
+    let filepath = this.cleanUpPath(scope.getFilename());
+
+    return path.extname(filepath) == ".sjs";
+  },
+
   /**
    * Gets the type of test or null if this isn't a test.
    *
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/mark-test-function-used.js firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/mark-test-function-used.js
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/mark-test-function-used.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/mark-test-function-used.js	2021-10-20 19:28:51.000000000 +0000
@@ -32,6 +32,10 @@
       if (testType == "xpcshell") {
         context.markVariableAsUsed("run_test");
       }
+
+      if (helpers.getIsSjs(context)) {
+        context.markVariableAsUsed("handleRequest");
+      }
     },
   };
 };
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-arbitrary-setTimeout.js firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-arbitrary-setTimeout.js
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-arbitrary-setTimeout.js	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/lib/rules/no-arbitrary-setTimeout.js	2021-10-20 19:28:51.000000000 +0000
@@ -29,16 +29,16 @@
   //  --------------------------------------------------------------------------
 
   create(context) {
+    // We don't want to run this on mochitest plain as it already
+    // prevents flaky setTimeout at runtime. This check is built-in
+    // to the rule itself as sometimes other tests can live alongside
+    // plain mochitests and so it can't be configured via eslintrc.
+    if (!testTypes.has(helpers.getTestType(context))) {
+      return {};
+    }
+
     return {
       CallExpression(node) {
-        // We don't want to run this on mochitest plain as it already
-        // prevents flaky setTimeout at runtime. This check is built-in
-        // to the rule itself as sometimes other tests can live alongside
-        // plain mochitests and so it can't be configured via eslintrc.
-        if (!testTypes.has(helpers.getTestType(context))) {
-          return;
-        }
-
         let callee = node.callee;
         if (callee.type === "MemberExpression") {
           if (
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/package.json firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/package.json
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/package.json	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/package.json	2021-10-20 19:28:51.000000000 +0000
@@ -1,6 +1,6 @@
 {
   "name": "eslint-plugin-mozilla",
-  "version": "2.11.1",
+  "version": "2.11.2",
   "description": "A collection of rules that help enforce JavaScript coding standard in the Mozilla project.",
   "keywords": [
     "eslint",
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/package-lock.json firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/package-lock.json
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/eslint/eslint-plugin-mozilla/package-lock.json	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/eslint/eslint-plugin-mozilla/package-lock.json	2021-10-20 19:28:51.000000000 +0000
@@ -1,6 +1,6 @@
 {
   "name": "eslint-plugin-mozilla",
-  "version": "2.11.1",
+  "version": "2.11.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/spell/__init__.py firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/spell/__init__.py
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/lint/spell/__init__.py	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/lint/spell/__init__.py	2021-10-20 19:28:51.000000000 +0000
@@ -55,13 +55,14 @@
                 print("Unable to match regex against output: {}".format(line))
             return
 
+        if CodespellProcess._fix:
+            CodespellProcess.fixed += 1
+
         # Ignore false positive like aParent (which would be fixed to apparent)
         # See https://github.com/lucasdemarchi/codespell/issues/314
         m = re.match(r"^[a-z][A-Z][a-z]*", typo)
         if m:
             return
-        if CodespellProcess._fix:
-            CodespellProcess.fixed += 1
         res = {
             "path": abspath,
             "message": typo.strip() + " ==> " + correct,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/core/memory_hooks.cpp firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/core/memory_hooks.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/core/memory_hooks.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/core/memory_hooks.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -71,7 +71,7 @@
 // or not.
 static bool profiler_add_native_allocation_marker(int64_t aSize,
                                                   uintptr_t aMemoryAddress) {
-  if (!profiler_can_accept_markers()) {
+  if (!profiler_thread_is_being_profiled(profiler_main_thread_id())) {
     return false;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/core/ProfilerThreadRegistrationData.cpp firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/core/ProfilerThreadRegistrationData.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/core/ProfilerThreadRegistrationData.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/core/ProfilerThreadRegistrationData.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -49,7 +49,7 @@
 }
 
 static void profiler_add_js_allocation_marker(JS::RecordAllocationInfo&& info) {
-  if (!profiler_can_accept_markers()) {
+  if (!profiler_thread_is_being_profiled()) {
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/gecko/ProfilerIOInterposeObserver.cpp firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/gecko/ProfilerIOInterposeObserver.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/gecko/ProfilerIOInterposeObserver.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/gecko/ProfilerIOInterposeObserver.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -75,7 +75,8 @@
   }
   uint32_t features = *maybeFeatures;
 
-  if (!profiler_can_accept_markers()) {
+  if (!profiler_thread_is_being_profiled(profiler_main_thread_id()) &&
+      !profiler_thread_is_being_profiled()) {
     return;
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/public/ProfilerMarkers.h firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/public/ProfilerMarkers.h
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/public/ProfilerMarkers.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/public/ProfilerMarkers.h	2021-10-20 19:28:51.000000000 +0000
@@ -136,7 +136,7 @@
 #ifndef MOZ_GECKO_PROFILER
   return {};
 #else
-  if (!profiler_can_accept_markers()) {
+  if (!profiler_thread_is_being_profiled(aOptions.ThreadId().ThreadId())) {
     return {};
   }
   return ::AddMarkerToBuffer(profiler_markers_detail::CachedCoreBuffer(), aName,
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/public/ProfilerState.h firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/public/ProfilerState.h
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/public/ProfilerState.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/public/ProfilerState.h	2021-10-20 19:28:51.000000000 +0000
@@ -163,7 +163,7 @@
 #ifndef MOZ_GECKO_PROFILER
 
 [[nodiscard]] inline bool profiler_is_active() { return false; }
-[[nodiscard]] inline bool profiler_can_accept_markers() { return false; }
+[[nodiscard]] inline bool profiler_is_active_and_unpaused() { return false; }
 [[nodiscard]] inline bool profiler_feature_active(uint32_t aFeature) {
   return false;
 }
@@ -301,15 +301,8 @@
   return mozilla::profiler::detail::RacyFeatures::IsActive();
 }
 
-// Same as profiler_is_active(), but with the same extra checks that determine
-// if the profiler would currently store markers. So this should be used before
-// doing some potentially-expensive work that's used in a marker. E.g.:
-//
-//   if (profiler_can_accept_markers()) {
-//     ExpensiveMarkerPayload expensivePayload = CreateExpensivePayload();
-//     BASE_PROFILER_ADD_MARKER_WITH_PAYLOAD(name, OTHER, expensivePayload);
-//   }
-[[nodiscard]] inline bool profiler_can_accept_markers() {
+// Same as profiler_is_active(), but also checks if the profiler is not paused.
+[[nodiscard]] inline bool profiler_is_active_and_unpaused() {
   return mozilla::profiler::detail::RacyFeatures::IsActiveAndUnpaused();
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/public/ProfilerThreadRegistry.h firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/public/ProfilerThreadRegistry.h
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/public/ProfilerThreadRegistry.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/public/ProfilerThreadRegistry.h	2021-10-20 19:28:51.000000000 +0000
@@ -244,6 +244,19 @@
     }
   }
 
+  template <typename F, typename FallbackReturn>
+  [[nodiscard]] static auto WithOffThreadRefOr(ProfilerThreadId aThreadId,
+                                               F&& aF,
+                                               FallbackReturn&& aFallbackReturn)
+      -> decltype(std::forward<F>(aF)(std::declval<OffThreadRef>())) {
+    for (OffThreadRef thread : LockedRegistry{}) {
+      if (thread.UnlockedConstReaderCRef().Info().ThreadId() == aThreadId) {
+        return std::forward<F>(aF)(thread);
+      }
+    }
+    return std::forward<FallbackReturn>(aFallbackReturn);
+  }
+
   static size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) {
     LockedRegistry lockedRegistry;
     // "Ex" because we don't count static objects, but we count whatever they
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/public/ProfilerThreadState.h firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/public/ProfilerThreadState.h
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/public/ProfilerThreadState.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/public/ProfilerThreadState.h	2021-10-20 19:28:50.000000000 +0000
@@ -22,17 +22,45 @@
          mozilla::profiler::ThreadRegistration::IsRegistered();
 }
 
-// Is the profiler active, and is the current thread being profiled?
-// (Same caveats and recommented usage as profiler_is_active().)
+// Is the profiler active and unpaused, and is the current thread being
+// profiled? (Same caveats and recommented usage as profiler_is_active().)
 [[nodiscard]] inline bool profiler_thread_is_being_profiled() {
-  return profiler_is_active() &&
+  return profiler_is_active_and_unpaused() &&
          mozilla::profiler::ThreadRegistration::WithOnThreadRefOr(
              [](mozilla::profiler::ThreadRegistration::OnThreadRef aTR) {
                return aTR.UnlockedConstReaderAndAtomicRWCRef()
                    .IsBeingProfiled();
              },
              false);
-  ;
+}
+
+// Is the profiler active and unpaused, and is the given thread being profiled?
+// (Same caveats and recommented usage as profiler_is_active().)
+// Safe to use with the current thread id, or unspecified ProfilerThreadId (same
+// as current thread id).
+[[nodiscard]] inline bool profiler_thread_is_being_profiled(
+    const ProfilerThreadId& aThreadId) {
+  if (!profiler_is_active_and_unpaused()) {
+    return false;
+  }
+
+  if (!aThreadId.IsSpecified() || aThreadId == profiler_current_thread_id()) {
+    // For the current thread id, use the ThreadRegistration directly, it is
+    // more efficient.
+    return mozilla::profiler::ThreadRegistration::WithOnThreadRefOr(
+        [](mozilla::profiler::ThreadRegistration::OnThreadRef aTR) {
+          return aTR.UnlockedConstReaderAndAtomicRWCRef().IsBeingProfiled();
+        },
+        false);
+  }
+
+  // For other threads, go through the ThreadRegistry.
+  return mozilla::profiler::ThreadRegistry::WithOffThreadRefOr(
+      aThreadId,
+      [](mozilla::profiler::ThreadRegistry::OffThreadRef aTR) {
+        return aTR.UnlockedConstReaderAndAtomicRWCRef().IsBeingProfiled();
+      },
+      false);
 }
 
 // Is the current thread registered and sleeping?
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/tests/browser/redirect.sjs firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/tests/browser/redirect.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/tests/browser/redirect.sjs	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/tests/browser/redirect.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -1,4 +1,8 @@
 function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 301, "Moved Permanently");
-  response.setHeader("Location", decodeURIComponent(request.queryString), false);
+  response.setHeader(
+    "Location",
+    decodeURIComponent(request.queryString),
+    false
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/tests/gtest/GeckoProfiler.cpp firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/tests/gtest/GeckoProfiler.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/tests/gtest/GeckoProfiler.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/tests/gtest/GeckoProfiler.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -929,6 +929,14 @@
       });
       EXPECT_EQ(ranTest, 1);
 
+      EXPECT_TRUE(TRy::WithOffThreadRefOr(
+          testThreadId,
+          [&](TRy::OffThreadRef aOffThreadRef) {
+            TestOffThreadRef(aOffThreadRef);
+            return true;
+          },
+          false));
+
       ranTest = 0;
       EXPECT_FALSE(TRy::IsRegistryMutexLockedOnCurrentThread());
       for (TRy::OffThreadRef offThreadRef : TRy::LockedRegistry{}) {
@@ -966,6 +974,22 @@
     std::thread otherThread([&]() {
       ASSERT_NE(profiler_current_thread_id(), testThreadId);
       testThroughRegistry();
+
+      // Test that this unregistered thread is really not registered.
+      int ranTest = 0;
+      TRy::WithOffThreadRef(
+          profiler_current_thread_id(),
+          [&](TRy::OffThreadRef aOffThreadRef) { ++ranTest; });
+      EXPECT_EQ(ranTest, 0);
+
+      EXPECT_FALSE(TRy::WithOffThreadRefOr(
+          profiler_current_thread_id(),
+          [&](TRy::OffThreadRef aOffThreadRef) {
+            ++ranTest;
+            return true;
+          },
+          false));
+      EXPECT_EQ(ranTest, 0);
     });
     otherThread.join();
   });
@@ -1730,17 +1754,85 @@
 
 TEST(GeckoProfiler, Pause)
 {
+  profiler_init_main_thread_id();
+  ASSERT_TRUE(profiler_is_main_thread())
+  << "This test must run on the main thread";
+
   uint32_t features = ProfilerFeature::StackWalk;
-  const char* filters[] = {"GeckoMain"};
+  const char* filters[] = {"GeckoMain", "Profiled GeckoProfiler.Pause"};
 
   ASSERT_TRUE(!profiler_is_paused());
-  ASSERT_TRUE(!profiler_can_accept_markers());
+  ASSERT_TRUE(!profiler_thread_is_being_profiled());
+  ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+  ASSERT_TRUE(!profiler_thread_is_being_profiled(profiler_current_thread_id()));
+  ASSERT_TRUE(!profiler_thread_is_being_profiled(profiler_main_thread_id()));
+
+  std::thread{[&]() {
+    {
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+    {
+      AUTO_PROFILER_REGISTER_THREAD(
+          "Ignored GeckoProfiler.Pause - before start");
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+    {
+      AUTO_PROFILER_REGISTER_THREAD(
+          "Profiled GeckoProfiler.Pause - before start");
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+  }}.join();
 
   profiler_start(PROFILER_DEFAULT_ENTRIES, PROFILER_DEFAULT_INTERVAL, features,
                  filters, MOZ_ARRAY_LENGTH(filters), 0);
 
   ASSERT_TRUE(!profiler_is_paused());
-  ASSERT_TRUE(profiler_can_accept_markers());
+  ASSERT_TRUE(profiler_thread_is_being_profiled());
+  ASSERT_TRUE(profiler_thread_is_being_profiled(ProfilerThreadId{}));
+  ASSERT_TRUE(profiler_thread_is_being_profiled(profiler_current_thread_id()));
+
+  std::thread{[&]() {
+    {
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+    {
+      AUTO_PROFILER_REGISTER_THREAD(
+          "Ignored GeckoProfiler.Pause - after start");
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+    {
+      AUTO_PROFILER_REGISTER_THREAD(
+          "Profiled GeckoProfiler.Pause - after start");
+      ASSERT_TRUE(profiler_thread_is_being_profiled());
+      ASSERT_TRUE(profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+  }}.join();
 
   // Check that we are writing samples while not paused.
   Maybe<ProfilerBufferInfo> info1 = profiler_get_buffer_info();
@@ -1757,7 +1849,40 @@
   profiler_pause();
 
   ASSERT_TRUE(profiler_is_paused());
-  ASSERT_TRUE(!profiler_can_accept_markers());
+  ASSERT_TRUE(!profiler_thread_is_being_profiled());
+  ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+  ASSERT_TRUE(!profiler_thread_is_being_profiled(profiler_current_thread_id()));
+
+  std::thread{[&]() {
+    {
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+    {
+      AUTO_PROFILER_REGISTER_THREAD(
+          "Ignored GeckoProfiler.Pause - after pause");
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+    {
+      AUTO_PROFILER_REGISTER_THREAD(
+          "Profiled GeckoProfiler.Pause - after pause");
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+  }}.join();
 
   // Check that we are not writing samples while paused.
   info1 = profiler_get_buffer_info();
@@ -1777,12 +1902,74 @@
   profiler_resume();
 
   ASSERT_TRUE(!profiler_is_paused());
-  ASSERT_TRUE(profiler_can_accept_markers());
+  ASSERT_TRUE(profiler_thread_is_being_profiled());
+  ASSERT_TRUE(profiler_thread_is_being_profiled(ProfilerThreadId{}));
+  ASSERT_TRUE(profiler_thread_is_being_profiled(profiler_current_thread_id()));
+
+  std::thread{[&]() {
+    {
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+    {
+      AUTO_PROFILER_REGISTER_THREAD(
+          "Ignored GeckoProfiler.Pause - after resume");
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+    {
+      AUTO_PROFILER_REGISTER_THREAD(
+          "Profiled GeckoProfiler.Pause - after resume");
+      ASSERT_TRUE(profiler_thread_is_being_profiled());
+      ASSERT_TRUE(profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+  }}.join();
 
   profiler_stop();
 
   ASSERT_TRUE(!profiler_is_paused());
-  ASSERT_TRUE(!profiler_can_accept_markers());
+  ASSERT_TRUE(!profiler_thread_is_being_profiled());
+  ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+  ASSERT_TRUE(!profiler_thread_is_being_profiled(profiler_current_thread_id()));
+
+  std::thread{[&]() {
+    {
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+    {
+      AUTO_PROFILER_REGISTER_THREAD("Ignored GeckoProfiler.Pause - after stop");
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+    {
+      AUTO_PROFILER_REGISTER_THREAD(
+          "Profiled GeckoProfiler.Pause - after stop");
+      ASSERT_TRUE(!profiler_thread_is_being_profiled());
+      ASSERT_TRUE(!profiler_thread_is_being_profiled(ProfilerThreadId{}));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_current_thread_id()));
+      ASSERT_TRUE(
+          !profiler_thread_is_being_profiled(profiler_main_thread_id()));
+    }
+  }}.join();
 }
 
 TEST(GeckoProfiler, Markers)
@@ -2130,7 +2317,7 @@
   std::thread registeredThread([]() {
     AUTO_PROFILER_REGISTER_THREAD("Marker test sub-thread");
     // Marker in non-profiled thread won't be stored.
-    EXPECT_TRUE(profiler_add_marker(
+    EXPECT_FALSE(profiler_add_marker(
         "Text in registered thread with stack", geckoprofiler::category::OTHER,
         MarkerStack::Capture(), geckoprofiler::markers::TextMarker{}, ""));
     // Marker will be stored in main thread, with stack from registered thread.
@@ -2144,10 +2331,10 @@
 
   std::thread unregisteredThread([]() {
     // Marker in unregistered thread won't be stored.
-    EXPECT_TRUE(profiler_add_marker("Text in unregistered thread with stack",
-                                    geckoprofiler::category::OTHER,
-                                    MarkerStack::Capture(),
-                                    geckoprofiler::markers::TextMarker{}, ""));
+    EXPECT_FALSE(profiler_add_marker("Text in unregistered thread with stack",
+                                     geckoprofiler::category::OTHER,
+                                     MarkerStack::Capture(),
+                                     geckoprofiler::markers::TextMarker{}, ""));
     // Marker will be stored in main thread, but stack cannot be captured in an
     // unregistered thread.
     EXPECT_TRUE(profiler_add_marker(
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/tests/xpcshell/test_feature_fileioall.js firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/tests/xpcshell/test_feature_fileioall.js
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/profiler/tests/xpcshell/test_feature_fileioall.js	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/profiler/tests/xpcshell/test_feature_fileioall.js	2021-10-20 19:28:51.000000000 +0000
@@ -14,7 +14,7 @@
   const filename = "test_marker_fileio";
   const profile = await startProfilerAndTriggerFileIO({
     features: ["fileioall"],
-    threadsFilter: ["GeckoMain", "BackgroundThreadPool"],
+    threadsFilter: ["GeckoMain", "BgIOThreadPool"],
     filename,
   });
 
@@ -25,7 +25,7 @@
   let backgroundThreadFileIO;
   for (const thread of threads) {
     // Check for FileIO in any of the background threads.
-    if (thread.name.startsWith("BackgroundThreadPool")) {
+    if (thread.name.startsWith("BgIOThreadPool")) {
       const markers = getInflatedFileIOMarkers(thread, filename);
       if (markers.length > 0) {
         backgroundThread = thread;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/update-verify/README.md firefox-trunk-95.0~a1~hg20211020r596404/tools/update-verify/README.md
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/update-verify/README.md	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/update-verify/README.md	2021-10-20 19:28:51.000000000 +0000
@@ -0,0 +1,119 @@
+Mozilla Build Verification Scripts
+==================================
+
+Contents
+--------
+
+updates -> AUS and update verification
+
+l10n -> l10n vs. en-US verification
+
+common -> useful utility scripts
+
+Update Verification
+-------------------
+
+`verify.sh`
+
+>  Does a low-level check of all advertised MAR files. Expects to have a
+>  file named all-locales, but does not (yet) handle platform exceptions, so 
+>  these should be removed from the locales file.
+>
+>  Prints errors on both STDOUT and STDIN, the intention is to run the
+>  script with STDOUT redirected to an output log. If there is not output
+>  on the console and an exit code of 0 then all tests pass; otherwise one
+>  or more tests failed.
+>
+>  Does the following:
+>
+>  1) download update.xml from AUS for a particular release
+>  2) download the partial and full mar advertised
+>  3) check that the partial and full match the advertised size and sha1sum
+>  4) downloads the latest release, and an older release
+>  5) applies MAR to the older release, and compares the two releases.
+>  
+>  Step 5 is repeated for both the complete and partial MAR.
+>
+>  Expects to have an updates.cfg file, describing all releases to try updating 
+>  from.
+
+Valid Platforms for AUS
+-----------------------
+- Linux_x86-gcc3
+- Darwin_Universal-gcc3
+- Linux_x86-gcc3
+- WINNT_x86-msvc
+- Darwin_ppc-gcc3
+
+---
+Running it locally
+==================
+
+Requirements:
+-------------
+
+- [Docker](https://docs.docker.com/get-docker/)
+- [optional | Mac] zstd (`brew install zst`)
+
+Docker Image
+------------
+
+1. [Ship-it](https://shipit.mozilla-releng.net/recent) holds the latest builds.
+1. Clicking on "Ship task" of latest build will open the task group in
+Taskcluster.
+1. On the "Name contains" lookup box, search for `release-update-verify-firefox`
+and open a `update-verify` task
+1. Make note of the `CHANNEL` under Payload. ie: `beta-localtest`
+1. Click "See more" under Task Details and open the `docker-image-update-verify`
+task.
+
+Download the image artifact from *docker-image-update-verify* task and load it
+manually
+```
+zstd -d image.tar.zst
+docker image load -i image.tar
+```
+
+**OR**
+
+Load docker image using mach and a task
+```
+# Replace TASK-ID with the ID of a docker-image-update-verify task
+./mach taskcluster-load-image --task-id=<TASK-ID>
+```
+
+Update Verify Config
+--------------------
+
+1. Open Taskcluster Task Group
+1. Search for `update-verify-config` and open the task
+1. Under Artifacts, download `update-verify.cfg` file
+
+Run Docker
+----------
+
+To run the container interactively:
+> Replace `<MOZ DIRECTORY>` with gecko repository path on local host <br />
+> Replace `<UVC PATH>` with path to `update-verify.cfg` file on local host.
+ie.: `~/Downloads/update-verify.cfg`
+> Replace `<CHANNEL>` with value from `update-verify` task (Docker steps)
+
+```
+docker run \
+  -it \
+  --rm \
+  -e CHANNEL=beta-localtest \
+  -e MOZ_FETCHES_DIR=/builds/worker/fetches \
+  -e MOZBUILD_STATE_PATH=/builds/worker/.mozbuild \
+  -v <UVC PATH>:/builds/worker/fetches/update-verify.cfg
+  -v <MOZ DIRECTORY>:/builds/worker/checkouts/gecko \
+  -w /builds/worker/checkouts/gecko \
+  update-verify
+```
+> Note that `MOZ_FETCHES_DIR` here is different from what is used in production.
+
+`total-chunks` and `this-chunk` refer to the number of lines in `update-verify.cfg`
+```
+./mach create-mach-environment
+./tools/update-verify/scripts/chunked-verify.sh --total-chunks=228 --this-chunk=4
+```
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/tools/update-verify/release/README.txt firefox-trunk-95.0~a1~hg20211020r596404/tools/update-verify/release/README.txt
--- firefox-trunk-95.0~a1~hg20211017r596111/tools/update-verify/release/README.txt	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/tools/update-verify/release/README.txt	1970-01-01 00:00:00.000000000 +0000
@@ -1,46 +0,0 @@
-Mozilla Build Verification Scripts
----
-
---
-Contents
---
-
-updates -> AUS and update verification
-l10n    -> l10n vs. en-US verification
-common  -> useful utility scripts
-
---
-Update verification
---
-
-verify.sh
-  does a low-level check of all advertised MAR files. Expects to have a
-  file named all-locales, but does not (yet) handle platform exceptions, so 
-  these should be removed from the locales file.
-
-  prints errors on both STDOUT and STDIN, the intention is to run the
-  script with STDOUT redirected to an output log. If there is not output
-  on the console and an exit code of 0 then all tests pass; otherwise one
-  or more tests failed.
-
-  Does the following:
-
-  1) download update.xml from AUS for a particular release
-  2) download the partial and full mar advertised
-  3) check that the partial and full match the advertised size and sha1sum
-  4) downloads the latest release, and an older release
-  5) applies MAR to the older release, and compares the two releases.
-  
-  Step 5 is repeated for both the complete and partial MAR.
-
-  Expects to have an updates.cfg file, describing all releases to try updating 
-  from.
-
--
-Valid Platforms for AUS
--
-Linux_x86-gcc3
-Darwin_Universal-gcc3
-Linux_x86-gcc3
-WINNT_x86-msvc
-Darwin_ppc-gcc3
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/nsExternalHelperAppService.cpp firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/nsExternalHelperAppService.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/nsExternalHelperAppService.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/nsExternalHelperAppService.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -994,6 +994,25 @@
 static const char kExternalProtocolDefaultPref[] =
     "network.protocol-handler.external-default";
 
+// static
+nsresult nsExternalHelperAppService::EscapeURI(nsIURI* aURI, nsIURI** aResult) {
+  MOZ_ASSERT(aURI);
+  MOZ_ASSERT(aResult);
+
+  nsAutoCString spec;
+  aURI->GetSpec(spec);
+
+  if (spec.Find("%00") != -1) return NS_ERROR_MALFORMED_URI;
+
+  nsAutoCString escapedSpec;
+  nsresult rv = NS_EscapeURL(spec, esc_AlwaysCopy | esc_ExtHandler, escapedSpec,
+                             fallible);
+  NS_ENSURE_SUCCESS(rv, rv);
+
+  nsCOMPtr<nsIIOService> ios(do_GetIOService());
+  return ios->NewURI(escapedSpec, nullptr, nullptr, aResult);
+}
+
 NS_IMETHODIMP
 nsExternalHelperAppService::LoadURI(nsIURI* aURI,
                                     nsIPrincipal* aTriggeringPrincipal,
@@ -1007,21 +1026,12 @@
     return NS_OK;
   }
 
-  nsAutoCString spec;
-  aURI->GetSpec(spec);
-
-  if (spec.Find("%00") != -1) return NS_ERROR_MALFORMED_URI;
-
-  spec.ReplaceSubstring("\"", "%22");
-  spec.ReplaceSubstring("`", "%60");
-
-  nsCOMPtr<nsIIOService> ios(do_GetIOService());
-  nsCOMPtr<nsIURI> uri;
-  nsresult rv = ios->NewURI(spec, nullptr, nullptr, getter_AddRefs(uri));
+  nsCOMPtr<nsIURI> escapedURI;
+  nsresult rv = EscapeURI(aURI, getter_AddRefs(escapedURI));
   NS_ENSURE_SUCCESS(rv, rv);
 
   nsAutoCString scheme;
-  uri->GetScheme(scheme);
+  escapedURI->GetScheme(scheme);
   if (scheme.IsEmpty()) return NS_OK;  // must have a scheme
 
   // Deny load if the prefs say to do so
@@ -1104,7 +1114,7 @@
       do_CreateInstance("@mozilla.org/content-dispatch-chooser;1", &rv);
   NS_ENSURE_SUCCESS(rv, rv);
 
-  return chooser->HandleURI(handler, uri, aTriggeringPrincipal,
+  return chooser->HandleURI(handler, escapedURI, aTriggeringPrincipal,
                             aBrowsingContext, aTriggeredExternally);
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/nsExternalHelperAppService.h firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/nsExternalHelperAppService.h
--- firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/nsExternalHelperAppService.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/nsExternalHelperAppService.h	2021-10-20 19:28:50.000000000 +0000
@@ -83,6 +83,7 @@
                                bool* aResult) override;
   NS_IMETHOD GetProtocolHandlerInfo(const nsACString& aScheme,
                                     nsIHandlerInfo** aHandlerInfo) override;
+
   NS_IMETHOD LoadURI(nsIURI* aURI, nsIPrincipal* aTriggeringPrincipal,
                      mozilla::dom::BrowsingContext* aBrowsingContext,
                      bool aWasTriggeredExternally) override;
@@ -119,6 +120,9 @@
 
   static already_AddRefed<nsExternalHelperAppService> GetSingleton();
 
+  // Internal method. Only called directly from tests.
+  static nsresult EscapeURI(nsIURI* aURI, nsIURI** aResult);
+
  protected:
   virtual ~nsExternalHelperAppService();
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/browser_auto_close_window.js firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/browser_auto_close_window.js
--- firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/browser_auto_close_window.js	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/browser_auto_close_window.js	2021-10-20 19:28:51.000000000 +0000
@@ -53,6 +53,23 @@
     HELPERAPP_DIALOG_CONTRACT_ID,
     mockHelperAppService
   );
+
+  // Ensure we always prompt for these downloads.
+  const HandlerService = Cc[
+    "@mozilla.org/uriloader/handler-service;1"
+  ].getService(Ci.nsIHandlerService);
+
+  const MIMEService = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
+  const mimeInfo = MIMEService.getFromTypeAndExtension(
+    "application/octet-stream",
+    "bin"
+  );
+  mimeInfo.alwaysAskBeforeHandling = true;
+  HandlerService.store(mimeInfo);
+
+  registerCleanupFunction(() => {
+    HandlerService.remove(mimeInfo);
+  });
 });
 
 add_task(async function simple_navigation() {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/browser_auto_close_window_nodialog.js firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/browser_auto_close_window_nodialog.js
--- firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/browser_auto_close_window_nodialog.js	1970-01-01 00:00:00.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/browser_auto_close_window_nodialog.js	2021-10-20 19:28:51.000000000 +0000
@@ -0,0 +1,295 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const { ComponentUtils } = ChromeUtils.import(
+  "resource://gre/modules/ComponentUtils.jsm"
+);
+
+const ROOT = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  "https://example.com"
+);
+const PAGE_URL = ROOT + "download_page.html";
+const SJS_URL = ROOT + "download.sjs";
+
+const HELPERAPP_DIALOG_CONTRACT_ID = "@mozilla.org/helperapplauncherdialog;1";
+const HELPERAPP_DIALOG_CID = Components.ID(
+  Cc[HELPERAPP_DIALOG_CONTRACT_ID].number
+);
+const MOCK_HELPERAPP_DIALOG_CID = Components.ID(
+  "{2f372b6f-56c9-46d5-af0d-9f09bb69860c}"
+);
+
+let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+let curSaveResolve = null;
+
+function HelperAppLauncherDialog() {}
+
+HelperAppLauncherDialog.prototype = {
+  show(aLauncher, aWindowContext, aReason) {
+    ok(false, "Shouldn't be showing the helper app dialog");
+    executeSoon(() => {
+      aLauncher.cancel(Cr.NS_ERROR_ABORT);
+    });
+  },
+  promptForSaveToFileAsync(aLauncher, aWindowContext, aReason) {
+    ok(true, "Shouldn't be showing the helper app dialog");
+    curSaveResolve(aWindowContext);
+    executeSoon(() => {
+      aLauncher.cancel(Cr.NS_ERROR_ABORT);
+    });
+  },
+  QueryInterface: ChromeUtils.generateQI(["nsIHelperAppLauncherDialog"]),
+};
+
+function promiseSave() {
+  return new Promise(resolve => {
+    curSaveResolve = resolve;
+  });
+}
+
+let mockHelperAppService;
+
+add_task(async function setup() {
+  // Replace the real helper app dialog with our own.
+  mockHelperAppService = ComponentUtils._getFactory(HelperAppLauncherDialog);
+  registrar.registerFactory(
+    MOCK_HELPERAPP_DIALOG_CID,
+    "",
+    HELPERAPP_DIALOG_CONTRACT_ID,
+    mockHelperAppService
+  );
+
+  // Ensure we always prompt for these downloads.
+  const HandlerService = Cc[
+    "@mozilla.org/uriloader/handler-service;1"
+  ].getService(Ci.nsIHandlerService);
+
+  const MIMEService = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
+  const mimeInfo = MIMEService.getFromTypeAndExtension(
+    "application/octet-stream",
+    "bin"
+  );
+  mimeInfo.alwaysAskBeforeHandling = false;
+  mimeInfo.preferredAction = Ci.nsIHandlerInfo.saveToDisk;
+  HandlerService.store(mimeInfo);
+
+  registerCleanupFunction(() => {
+    HandlerService.remove(mimeInfo);
+  });
+});
+
+add_task(async function simple_navigation() {
+  // Tests that simple navigation gives us the right windowContext (that is,
+  // the window that we're using).
+  await BrowserTestUtils.withNewTab({ gBrowser, url: PAGE_URL }, async function(
+    browser
+  ) {
+    let saveHappened = promiseSave();
+    await BrowserTestUtils.synthesizeMouseAtCenter(
+      "#regular_load",
+      {},
+      browser
+    );
+    let windowContext = await saveHappened;
+
+    is(windowContext, browser.ownerGlobal, "got the right windowContext");
+  });
+});
+
+// Given a browser pointing to download_page.html, clicks on the link that
+// opens with target="_blank" (i.e. a new tab) and ensures that we
+// automatically open and close that tab.
+async function testNewTab(browser) {
+  let saveHappened = promiseSave();
+  let tabOpened = BrowserTestUtils.waitForEvent(
+    gBrowser.tabContainer,
+    "TabOpen"
+  ).then(event => {
+    return [event.target, BrowserTestUtils.waitForTabClosing(event.target)];
+  });
+
+  await BrowserTestUtils.synthesizeMouseAtCenter("#target_blank", {}, browser);
+
+  let windowContext = await saveHappened;
+  is(windowContext, browser.ownerGlobal, "got the right windowContext");
+  let [tab, closingPromise] = await tabOpened;
+  await closingPromise;
+  is(tab.linkedBrowser, null, "tab was opened and closed");
+}
+
+add_task(async function target_blank() {
+  // Tests that a link with target=_blank opens a new tab and closes it,
+  // returning the window that we're using for navigation.
+  await BrowserTestUtils.withNewTab({ gBrowser, url: PAGE_URL }, async function(
+    browser
+  ) {
+    await testNewTab(browser);
+  });
+});
+
+add_task(async function target_blank_no_opener() {
+  // Tests that a link with target=_blank and no opener opens a new tab
+  // and closes it, returning the window that we're using for navigation.
+  await BrowserTestUtils.withNewTab({ gBrowser, url: PAGE_URL }, async function(
+    browser
+  ) {
+    let saveHappened = promiseSave();
+    let tabOpened = BrowserTestUtils.waitForEvent(
+      gBrowser.tabContainer,
+      "TabOpen"
+    ).then(event => {
+      return [event.target, BrowserTestUtils.waitForTabClosing(event.target)];
+    });
+
+    await BrowserTestUtils.synthesizeMouseAtCenter(
+      "#target_blank_no_opener",
+      {},
+      browser
+    );
+
+    let windowContext = await saveHappened;
+    is(windowContext, browser.ownerGlobal, "got the right windowContext");
+    let [tab, closingPromise] = await tabOpened;
+    await closingPromise;
+    is(tab.linkedBrowser, null, "tab was opened and closed");
+  });
+});
+
+add_task(async function open_in_new_tab_no_opener() {
+  // Tests that a link with target=_blank and no opener opens a new tab
+  // and closes it, returning the window that we're using for navigation.
+  await BrowserTestUtils.withNewTab({ gBrowser, url: PAGE_URL }, async function(
+    browser
+  ) {
+    let saveHappened = promiseSave();
+    let tabOpened = BrowserTestUtils.waitForEvent(
+      gBrowser.tabContainer,
+      "TabOpen"
+    ).then(event => {
+      return [event.target, BrowserTestUtils.waitForTabClosing(event.target)];
+    });
+
+    await BrowserTestUtils.synthesizeMouseAtCenter(
+      "#open_in_new_tab_no_opener",
+      {},
+      browser
+    );
+
+    let windowContext = await saveHappened;
+    is(windowContext, browser.ownerGlobal, "got the right windowContext");
+    let [tab, closingPromise] = await tabOpened;
+    await closingPromise;
+    is(tab.linkedBrowser, null, "tab was opened and closed");
+  });
+});
+
+add_task(async function new_window() {
+  // Tests that a link that forces us to open a new window (by specifying a
+  // width and a height in window.open) opens a new window for the load,
+  // realizes that we need to close that window and returns the *original*
+  // window as the window context.
+  await BrowserTestUtils.withNewTab({ gBrowser, url: PAGE_URL }, async function(
+    browser
+  ) {
+    let saveHappened = promiseSave();
+    let windowOpened = BrowserTestUtils.waitForNewWindow();
+
+    await BrowserTestUtils.synthesizeMouseAtCenter("#new_window", {}, browser);
+    let win = await windowOpened;
+    // Now allow request to complete:
+    fetch(SJS_URL + "?finish");
+
+    let windowContext = await saveHappened;
+    is(windowContext, browser.ownerGlobal, "got the right windowContext");
+
+    // The window should close on its own. If not, this test will time out.
+    await BrowserTestUtils.domWindowClosed(win);
+    ok(win.closed, "window was opened and closed");
+
+    is(
+      await fetch(SJS_URL + "?reset").then(r => r.text()),
+      "OK",
+      "Test reseted"
+    );
+  });
+});
+
+add_task(async function new_window_no_opener() {
+  // Tests that a link that forces us to open a new window (by specifying a
+  // width and a height in window.open) opens a new window for the load,
+  // realizes that we need to close that window and returns the *original*
+  // window as the window context.
+  await BrowserTestUtils.withNewTab({ gBrowser, url: PAGE_URL }, async function(
+    browser
+  ) {
+    let saveHappened = promiseSave();
+    let windowOpened = BrowserTestUtils.waitForNewWindow();
+
+    await BrowserTestUtils.synthesizeMouseAtCenter(
+      "#new_window_no_opener",
+      {},
+      browser
+    );
+    let win = await windowOpened;
+    // Now allow request to complete:
+    fetch(SJS_URL + "?finish");
+
+    await saveHappened;
+
+    // The window should close on its own. If not, this test will time out.
+    await BrowserTestUtils.domWindowClosed(win);
+    ok(win.closed, "window was opened and closed");
+
+    is(
+      await fetch(SJS_URL + "?reset").then(r => r.text()),
+      "OK",
+      "Test reseted"
+    );
+  });
+});
+
+add_task(async function nested_window_opens() {
+  // Tests that the window auto-closing feature works if the download is
+  // initiated by a window that, itself, has an opener (see bug 1373109).
+  await BrowserTestUtils.withNewTab({ gBrowser, url: PAGE_URL }, async function(
+    outerBrowser
+  ) {
+    let secondTabPromise = BrowserTestUtils.waitForNewTab(
+      gBrowser,
+      `${PAGE_URL}?newwin`,
+      true
+    );
+    BrowserTestUtils.synthesizeMouseAtCenter(
+      "#open_in_new_tab",
+      {},
+      outerBrowser
+    );
+    let secondTab = await secondTabPromise;
+    let nestedBrowser = secondTab.linkedBrowser;
+
+    await SpecialPowers.spawn(nestedBrowser, [], function() {
+      ok(content.opener, "this window has an opener");
+    });
+
+    await testNewTab(nestedBrowser);
+
+    isnot(
+      secondTab.linkedBrowser,
+      null,
+      "the page that triggered the download is still open"
+    );
+    BrowserTestUtils.removeTab(secondTab);
+  });
+});
+
+add_task(async function cleanup() {
+  // Unregister our factory from XPCOM and restore the original CID.
+  registrar.unregisterFactory(MOCK_HELPERAPP_DIALOG_CID, mockHelperAppService);
+  registrar.registerFactory(
+    HELPERAPP_DIALOG_CID,
+    "",
+    HELPERAPP_DIALOG_CONTRACT_ID,
+    null
+  );
+});
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/browser_extension_correction.js firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/browser_extension_correction.js
--- firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/browser_extension_correction.js	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/browser_extension_correction.js	2021-10-20 19:28:51.000000000 +0000
@@ -44,53 +44,72 @@
   task,
   { type, shouldHaveExtension, expectedName = null }
 ) {
-  let winPromise = BrowserTestUtils.domWindowOpenedAndLoaded();
+  const shouldExpectDialog = !SpecialPowers.Services.prefs.getBoolPref(
+    "browser.download.improvements_to_download_panel",
+    false
+  );
+
+  let winPromise;
+  if (shouldExpectDialog) {
+    winPromise = BrowserTestUtils.domWindowOpenedAndLoaded();
+  }
 
   await task();
 
-  info("Waiting for dialog.");
-  let win = await winPromise;
-
-  let actualName = win.document.getElementById("location").value;
-  if (shouldHaveExtension) {
-    expectedName ??= "somefile." + getMIMEInfoForType(type).primaryExtension;
-    is(actualName, expectedName, `${type} should get an extension`);
-  } else {
-    expectedName ??= "somefile";
-    is(actualName, expectedName, `${type} should not get an extension`);
+  let win;
+  if (shouldExpectDialog) {
+    info("Waiting for dialog.");
+    win = await winPromise;
   }
 
-  let closedPromise = BrowserTestUtils.windowClosed(win);
+  expectedName ??= shouldHaveExtension
+    ? "somefile." + getMIMEInfoForType(type).primaryExtension
+    : "somefile";
+
+  let closedPromise = true;
+  if (shouldExpectDialog) {
+    let actualName = win.document.getElementById("location").value;
+    closedPromise = BrowserTestUtils.windowClosed(win);
+
+    if (shouldHaveExtension) {
+      is(actualName, expectedName, `${type} should get an extension`);
+    } else {
+      is(actualName, expectedName, `${type} should not get an extension`);
+    }
+  }
 
   if (shouldHaveExtension) {
     // Wait for the download.
     let publicList = await Downloads.getList(Downloads.PUBLIC);
     let downloadFinishedPromise = promiseDownloadFinished(publicList);
 
-    // Then pick "save" in the dialog.
-    let dialog = win.document.getElementById("unknownContentType");
-    win.document.getElementById("save").click();
-    let button = dialog.getButton("accept");
-    button.disabled = false;
-    dialog.acceptDialog();
+    // Then pick "save" in the dialog, if we have a dialog.
+    if (shouldExpectDialog) {
+      let dialog = win.document.getElementById("unknownContentType");
+      win.document.getElementById("save").click();
+      let button = dialog.getButton("accept");
+      button.disabled = false;
+      dialog.acceptDialog();
+    }
 
     // Wait for the download to finish and check the extension is correct.
     let download = await downloadFinishedPromise;
     is(
       PathUtils.filename(download.target.path),
       expectedName,
-      `Downloaded file should also match ${expectedName}`
+      `Downloaded file should match ${expectedName}`
     );
     gPathsToRemove.push(download.target.path);
     let pathToRemove = download.target.path;
     // Avoid one file interfering with subsequent files.
     await publicList.removeFinished();
     await IOUtils.remove(pathToRemove);
-  } else {
+  } else if (win) {
     // We just cancel out for files that would end up without a path, as we'd
     // prompt for a filename.
     win.close();
   }
+
   return closedPromise;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/browser.ini firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/browser.ini
--- firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/browser.ini	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/browser.ini	2021-10-20 19:28:51.000000000 +0000
@@ -5,7 +5,11 @@
 skip-if = win10_2004 && ccov # Bug 1727943
 
 [browser_auto_close_window.js]
-run-if = e10s # test relies on e10s behavior
+support-files =
+  download_page.html
+  download.bin
+  download.sjs
+[browser_auto_close_window_nodialog.js]
 support-files =
   download_page.html
   download.bin
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/download.sjs firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/download.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/download.sjs	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/download.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -1,7 +1,5 @@
 "use strict";
 
-Cu.import("resource://gre/modules/Timer.jsm");
-
 function actuallyHandleRequest(req, res) {
   res.setHeader("Content-Type", "application/octet-stream", false);
   res.write("abc123");
@@ -9,10 +7,12 @@
 }
 
 function handleRequest(req, res) {
-  if (req.queryString.includes('finish')) {
+  if (req.queryString.includes("finish")) {
     res.write("OK");
     let downloadReq = null;
-    getObjectState("downloadReq", o => { downloadReq = o });
+    getObjectState("downloadReq", o => {
+      downloadReq = o;
+    });
     // Two possibilities: either the download request has already reached us, or not.
     if (downloadReq) {
       downloadReq.wrappedJSObject.callback();
@@ -20,7 +20,7 @@
       // Set a variable to allow the request to complete immediately:
       setState("finishReq", "true");
     }
-  } else if (req.queryString.includes('reset')) {
+  } else if (req.queryString.includes("reset")) {
     res.write("OK");
     setObjectState("downloadReq", null);
     setState("finishReq", "false");
@@ -29,7 +29,11 @@
     if (getState("finishReq") === "true") {
       actuallyHandleRequest(req, res);
     } else {
-      let o = {callback() { actuallyHandleRequest(req, res) }};
+      let o = {
+        callback() {
+          actuallyHandleRequest(req, res);
+        },
+      };
       o.wrappedJSObject = o;
       o.QueryInterface = () => o;
       setObjectState("downloadReq", o);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/invalidCharFileExtension.sjs firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/invalidCharFileExtension.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/invalidCharFileExtension.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/invalidCharFileExtension.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -5,10 +5,14 @@
 function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 200, "OK");
 
-  if (!request.queryString.match(/^name=/))
+  if (!request.queryString.match(/^name=/)) {
     return;
+  }
   var name = decodeURIComponent(request.queryString.substring(5));
 
-  response.setHeader("Content-Type", "image/png; name=\"" + name + "\"");
-  response.setHeader("Content-Disposition", "attachment; filename=\"" + name + "\"");
+  response.setHeader("Content-Type", 'image/png; name="' + name + '"');
+  response.setHeader(
+    "Content-Disposition",
+    'attachment; filename="' + name + '"'
+  );
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/redirect_helper.sjs firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/redirect_helper.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/redirect_helper.sjs	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/redirect_helper.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -7,6 +7,8 @@
 
 function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 302, "Moved Temporarily");
-  response.setHeader("Location", new URLSearchParams(request.queryString).get("uri"));
+  response.setHeader(
+    "Location",
+    new URLSearchParams(request.queryString).get("uri")
+  );
 }
-
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/unsafeBidiFileName.sjs firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/unsafeBidiFileName.sjs
--- firefox-trunk-95.0~a1~hg20211017r596111/uriloader/exthandler/tests/mochitest/unsafeBidiFileName.sjs	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/uriloader/exthandler/tests/mochitest/unsafeBidiFileName.sjs	2021-10-20 19:28:51.000000000 +0000
@@ -5,10 +5,14 @@
 function handleRequest(request, response) {
   response.setStatusLine(request.httpVersion, 200, "OK");
 
-  if (!request.queryString.match(/^name=/))
+  if (!request.queryString.match(/^name=/)) {
     return;
+  }
   var name = decodeURIComponent(request.queryString.substring(5));
 
-  response.setHeader("Content-Type", "application/octet-stream; name=\"" + name + "\"");
-  response.setHeader("Content-Disposition", "inline; filename=\"" + name + "\"");
+  response.setHeader(
+    "Content-Type",
+    'application/octet-stream; name="' + name + '"'
+  );
+  response.setHeader("Content-Disposition", 'inline; filename="' + name + '"');
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/view/nsView.cpp firefox-trunk-95.0~a1~hg20211020r596404/view/nsView.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/view/nsView.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/view/nsView.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -529,12 +529,7 @@
       "Use CreateWidgetForPopup");
 
   DefaultWidgetInitData defaultInitData;
-  bool initDataPassedIn = !!aWidgetInitData;
   aWidgetInitData = aWidgetInitData ? aWidgetInitData : &defaultInitData;
-  defaultInitData.mListenForResizes =
-      (!initDataPassedIn && GetParent() &&
-       GetParent()->GetViewManager() != mViewManager);
-
   LayoutDeviceIntRect trect = CalcWidgetBounds(aWidgetInitData->mWindowType);
 
   nsIWidget* parentWidget =
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/view/nsViewManager.cpp firefox-trunk-95.0~a1~hg20211020r596404/view/nsViewManager.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/view/nsViewManager.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/view/nsViewManager.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -24,6 +24,7 @@
 #include "nsLayoutUtils.h"
 #include "Layers.h"
 #include "gfxPlatform.h"
+#include "WindowRenderer.h"
 
 /**
    XXX TODO XXX
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/android/nsWindow.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/android/nsWindow.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/android/nsWindow.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/android/nsWindow.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -75,6 +75,7 @@
 #include "GLContext.h"
 #include "GLContextProvider.h"
 #include "Layers.h"
+#include "WindowRenderer.h"
 #include "ScopedGLHelpers.h"
 #include "mozilla/layers/APZEventState.h"
 #include "mozilla/layers/APZInputBridge.h"
@@ -1818,17 +1819,6 @@
 #endif
 }
 
-nsresult nsWindow::ConfigureChildren(
-    const nsTArray<nsIWidget::Configuration>& config) {
-  for (uint32_t i = 0; i < config.Length(); ++i) {
-    nsWindow* childWin = (nsWindow*)config[i].mChild.get();
-    childWin->Resize(config[i].mBounds.x, config[i].mBounds.y,
-                     config[i].mBounds.width, config[i].mBounds.height, false);
-  }
-
-  return NS_OK;
-}
-
 mozilla::widget::EventDispatcher* nsWindow::GetEventDispatcher() const {
   if (mAndroidView) {
     return mAndroidView->mEventDispatcher;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/android/nsWindow.h firefox-trunk-95.0~a1~hg20211020r596404/widget/android/nsWindow.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/android/nsWindow.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/android/nsWindow.h	2021-10-20 19:28:51.000000000 +0000
@@ -139,8 +139,6 @@
                                         const LayoutDeviceIntRect& aRect,
                                         nsWidgetInitData* aInitData) override;
   virtual void Destroy() override;
-  virtual nsresult ConfigureChildren(
-      const nsTArray<nsIWidget::Configuration>&) override;
   virtual void SetParent(nsIWidget* aNewParent) override;
   virtual nsIWidget* GetParent(void) override;
   virtual float GetDPI() override;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsAppShell.mm firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsAppShell.mm
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsAppShell.mm	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsAppShell.mm	2021-10-20 19:28:51.000000000 +0000
@@ -335,6 +335,11 @@
   // NSApplicationMain() is running).
   NSAutoreleasePool* localPool = [[NSAutoreleasePool alloc] init];
 
+  char* mozAppNoDock = PR_GetEnv("MOZ_APP_NO_DOCK");
+  if (mozAppNoDock && strcmp(mozAppNoDock, "") != 0) {
+    [NSApp setActivationPolicy:NSApplicationActivationPolicyAccessory];
+  }
+
   // mAutoreleasePools is used as a stack of NSAutoreleasePool objects created
   // by |this|.  CFArray is used instead of NSArray because NSArray wants to
   // retain each object you add to it, and you can't retain an
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsChildView.h firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsChildView.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsChildView.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsChildView.h	2021-10-20 19:28:51.000000000 +0000
@@ -344,7 +344,6 @@
   void EnsureContentLayerForMainThreadPainting();
 
   virtual void* GetNativeData(uint32_t aDataType) override;
-  virtual nsresult ConfigureChildren(const nsTArray<Configuration>& aConfigurations) override;
   virtual LayoutDeviceIntPoint WidgetToScreenOffset() override;
   virtual bool ShowsResizeIndicator(LayoutDeviceIntRect* aResizerRect) override { return false; }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsChildView.mm firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsChildView.mm
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsChildView.mm	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsChildView.mm	2021-10-20 19:28:51.000000000 +0000
@@ -1250,10 +1250,6 @@
 
 #pragma mark -
 
-nsresult nsChildView::ConfigureChildren(const nsTArray<Configuration>& aConfigurations) {
-  return NS_OK;
-}
-
 // Invokes callback and ProcessEvent methods on Event Listener object
 nsresult nsChildView::DispatchEvent(WidgetGUIEvent* event, nsEventStatus& aStatus) {
   RefPtr<nsChildView> kungFuDeathGrip(this);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsCocoaFeatures.h firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsCocoaFeatures.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsCocoaFeatures.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsCocoaFeatures.h	2021-10-20 19:28:51.000000000 +0000
@@ -23,6 +23,7 @@
   static bool OnMojaveOrLater();
   static bool OnCatalinaOrLater();
   static bool OnBigSurOrLater();
+  static bool OnMontereyOrLater();
 
   static bool IsAtLeastVersion(int32_t aMajor, int32_t aMinor,
                                int32_t aBugFix = 0);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsCocoaFeatures.mm firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsCocoaFeatures.mm
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsCocoaFeatures.mm	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsCocoaFeatures.mm	2021-10-20 19:28:51.000000000 +0000
@@ -24,6 +24,7 @@
 #define MACOS_VERSION_10_15_HEX 0x000A0F00
 #define MACOS_VERSION_10_16_HEX 0x000A1000
 #define MACOS_VERSION_11_0_HEX 0x000B0000
+#define MACOS_VERSION_12_0_HEX 0x000C0000
 
 #include "nsCocoaFeatures.h"
 #include "nsCocoaUtils.h"
@@ -165,12 +166,29 @@
 }
 
 /* static */ bool nsCocoaFeatures::OnBigSurOrLater() {
-  // Account for the version being 10.16 (which occurs when the
-  // application is linked with an older SDK) or 11.0 on Big Sur.
+  // Account for the version being 10.16 or 11.0 on Big Sur.
+  // The version is reported as 10.16 if SYSTEM_VERSION_COMPAT is set to 1,
+  // or if SYSTEM_VERSION_COMPAT is not set and the application is linked
+  // with a pre-Big Sur SDK.
+  // Firefox sets SYSTEM_VERSION_COMPAT to 0 in its Info.plist, so it'll
+  // usually see the correct 11.* version, despite being linked against an
+  // old SDK. However, it still sees the 10.16 compatibility version when
+  // launched from the command line, see bug 1727624. (This only applies to
+  // the Intel build - the arm64 build is linked against a Big Sur SDK and
+  // always sees the correct version.)
   return ((macOSVersion() >= MACOS_VERSION_10_16_HEX) ||
           (macOSVersion() >= MACOS_VERSION_11_0_HEX));
 }
 
+/* static */ bool nsCocoaFeatures::OnMontereyOrLater() {
+  // This check only works if SYSTEM_VERSION_COMPAT is off, otherwise
+  // Monterey pretends to be 10.16 and is indistinguishable from Big Sur.
+  // In practice, this means that an Intel Firefox build can return false
+  // from this function if it's launched from the command line, see bug 1727624.
+  // This will not be an issue anymore once we link against the Big Sur SDK.
+  return (macOSVersion() >= MACOS_VERSION_12_0_HEX);
+}
+
 /* static */ bool nsCocoaFeatures::IsAtLeastVersion(int32_t aMajor, int32_t aMinor,
                                                     int32_t aBugFix) {
   return macOSVersion() >= GetVersion(aMajor, aMinor, aBugFix);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsCocoaWindow.h firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsCocoaWindow.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsCocoaWindow.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsCocoaWindow.h	2021-10-20 19:28:51.000000000 +0000
@@ -295,7 +295,6 @@
   virtual nsresult SetTitle(const nsAString& aTitle) override;
 
   virtual void Invalidate(const LayoutDeviceIntRect& aRect) override;
-  virtual nsresult ConfigureChildren(const nsTArray<Configuration>& aConfigurations) override;
   virtual WindowRenderer* GetWindowRenderer() override;
   virtual nsresult DispatchEvent(mozilla::WidgetGUIEvent* aEvent, nsEventStatus& aStatus) override;
   virtual void CaptureRollupEvents(nsIRollupListener* aListener, bool aDoCapture) override;
@@ -307,7 +306,7 @@
   virtual void SetWindowOpacity(float aOpacity) override;
   virtual void SetWindowTransform(const mozilla::gfx::Matrix& aTransform) override;
   virtual void SetWindowMouseTransparent(bool aIsTransparent) override;
-  virtual void SetColorScheme(mozilla::ColorScheme) override;
+  virtual void SetColorScheme(const mozilla::Maybe<mozilla::ColorScheme>&) override;
   virtual void SetShowsToolbarButton(bool aShow) override;
   virtual void SetSupportsNativeFullscreen(bool aShow) override;
   virtual void SetWindowAnimationType(WindowAnimationType aType) override;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsCocoaWindow.mm firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsCocoaWindow.mm
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsCocoaWindow.mm	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsCocoaWindow.mm	2021-10-20 19:28:51.000000000 +0000
@@ -399,7 +399,6 @@
   switch (mWindowType) {
     case eWindowType_invisible:
     case eWindowType_child:
-    case eWindowType_plugin:
       break;
     case eWindowType_popup:
       if (aBorderStyle != eBorderStyle_default && mBorderStyle & eBorderStyle_title) {
@@ -798,6 +797,14 @@
       (parentWidget) ? (NSWindow*)parentWidget->GetNativeData(NS_NATIVE_WINDOW) : nil;
 
   if (bState && !mBounds.IsEmpty()) {
+    // If we had set the activationPolicy to accessory, then right now we won't
+    // have a dock icon. Make sure that we undo that and show a dock icon now that
+    // we're going to show a window.
+    if ([NSApp activationPolicy] != NSApplicationActivationPolicyRegular) {
+      [NSApp setActivationPolicy:NSApplicationActivationPolicyRegular];
+      PR_SetEnv("MOZ_APP_NO_DOCK=");
+    }
+
     // Don't try to show a popup when the parent isn't visible or is minimized.
     if (mWindowType == eWindowType_popup && nativeParentWindow) {
       if (![nativeParentWindow isVisible] || [nativeParentWindow isMiniaturized]) {
@@ -1028,13 +1035,6 @@
   return (mWindowType == eWindowType_popup) && mWasShown && ([[NSScreen screens] count] > 1);
 }
 
-nsresult nsCocoaWindow::ConfigureChildren(const nsTArray<Configuration>& aConfigurations) {
-  if (mPopupContentView) {
-    mPopupContentView->ConfigureChildren(aConfigurations);
-  }
-  return NS_OK;
-}
-
 WindowRenderer* nsCocoaWindow::GetWindowRenderer() {
   if (mPopupContentView) {
     return mPopupContentView->GetWindowRenderer();
@@ -2315,14 +2315,14 @@
   NS_OBJC_END_TRY_IGNORE_BLOCK;
 }
 
-void nsCocoaWindow::SetColorScheme(ColorScheme aScheme) {
+void nsCocoaWindow::SetColorScheme(const Maybe<ColorScheme>& aScheme) {
   NS_OBJC_BEGIN_TRY_IGNORE_BLOCK;
 
   if (!mWindow) {
     return;
   }
 
-  mWindow.appearance = NSAppearanceForColorScheme(aScheme);
+  mWindow.appearance = aScheme ? NSAppearanceForColorScheme(*aScheme) : nil;
 
   NS_OBJC_END_TRY_IGNORE_BLOCK;
 }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsLookAndFeel.mm firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsLookAndFeel.mm
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsLookAndFeel.mm	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsLookAndFeel.mm	2021-10-20 19:28:51.000000000 +0000
@@ -201,7 +201,6 @@
       // Thanks to mpt26@student.canterbury.ac.nz for the hardcoded values that form the defaults
       //  if querying the Appearance Manager fails ;)
       //
-    case ColorID::MozButtonactivetext:
     case ColorID::MozMacDefaultbuttontext:
       color = NS_RGB(0xFF, 0xFF, 0xFF);
       break;
@@ -209,6 +208,13 @@
     case ColorID::MozButtonhovertext:
       color = GetColorFromNSColor(NSColor.controlTextColor);
       break;
+    case ColorID::MozButtonactivetext:
+      // Pre-macOS 12, pressed buttons were filled with the highlight color and the text was white.
+      // Starting with macOS 12, pressed (non-default) buttons are filled with medium gray and the
+      // text color is the same as in the non-pressed state.
+      color = nsCocoaFeatures::OnMontereyOrLater() ? GetColorFromNSColor(NSColor.controlTextColor)
+                                                   : NS_RGB(0xFF, 0xFF, 0xFF);
+      break;
     case ColorID::Captiontext:
     case ColorID::Menutext:
     case ColorID::Infotext:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsNativeThemeCocoa.mm firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsNativeThemeCocoa.mm
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/cocoa/nsNativeThemeCocoa.mm	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/cocoa/nsNativeThemeCocoa.mm	2021-10-20 19:28:51.000000000 +0000
@@ -2307,13 +2307,9 @@
         // text, and default buttons in inactive windows have white background
         // and black text.)
         EventStates docState = aFrame->GetContent()->OwnerDoc()->GetDocumentState();
-        bool isInActiveWindow = !docState.HasState(NS_DOCUMENT_STATE_WINDOW_INACTIVE);
-        bool hasDefaultButtonLook = isInActiveWindow && !eventState.HasState(NS_EVENT_STATE_ACTIVE);
-        ButtonType buttonType =
-            hasDefaultButtonLook ? ButtonType::eDefaultPushButton : ButtonType::eRegularPushButton;
         ControlParams params = ComputeControlParams(aFrame, eventState);
-        params.insideActiveWindow = isInActiveWindow;
-        return Some(WidgetInfo::Button(ButtonParams{params, buttonType}));
+        params.insideActiveWindow = !docState.HasState(NS_DOCUMENT_STATE_WINDOW_INACTIVE);
+        return Some(WidgetInfo::Button(ButtonParams{params, ButtonType::eDefaultPushButton}));
       }
       if (IsButtonTypeMenu(aFrame)) {
         ControlParams controlParams = ComputeControlParams(aFrame, eventState);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/GfxInfoBase.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/GfxInfoBase.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/GfxInfoBase.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/GfxInfoBase.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -1796,12 +1796,6 @@
 }
 
 NS_IMETHODIMP
-GfxInfoBase::GetUsesTiling(bool* aUsesTiling) {
-  *aUsesTiling = gfxPlatform::GetPlatform()->UsesTiling();
-  return NS_OK;
-}
-
-NS_IMETHODIMP
 GfxInfoBase::GetTargetFrameRate(uint32_t* aTargetFrameRate) {
   *aTargetFrameRate = gfxPlatform::TargetFrameRate();
   return NS_OK;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/GfxInfoBase.h firefox-trunk-95.0~a1~hg20211020r596404/widget/GfxInfoBase.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/GfxInfoBase.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/GfxInfoBase.h	2021-10-20 19:28:51.000000000 +0000
@@ -71,7 +71,6 @@
   NS_IMETHOD GetUsingGPUProcess(bool* aOutValue) override;
   NS_IMETHOD GetWebRenderEnabled(bool* aWebRenderEnabled) override;
   NS_IMETHOD GetIsHeadless(bool* aIsHeadless) override;
-  NS_IMETHOD GetUsesTiling(bool* aUsesTiling) override;
   NS_IMETHOD GetTargetFrameRate(uint32_t* aTargetFrameRate) override;
 
   // Non-XPCOM method to get IPC data:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/MozContainer.h firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/MozContainer.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/MozContainer.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/MozContainer.h	2021-10-20 19:28:51.000000000 +0000
@@ -61,10 +61,6 @@
 #define MOZ_CONTAINER_GET_CLASS(obj) \
   (G_TYPE_INSTANCE_GET_CLASS((obj), MOZ_CONTAINER_TYPE, MozContainerClass))
 
-// We need to shape only a few pixels of the titlebar as we care about
-// the corners only
-#define TITLEBAR_SHAPE_MASK_HEIGHT 10
-
 typedef struct _MozContainer MozContainer;
 typedef struct _MozContainerClass MozContainerClass;
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/MozContainerWayland.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/MozContainerWayland.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/MozContainerWayland.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/MozContainerWayland.cpp	2021-10-20 19:28:50.000000000 +0000
@@ -56,6 +56,7 @@
 #include <wayland-egl.h>
 
 #include "mozilla/gfx/gfxVars.h"
+#include "mozilla/StaticPrefs_widget.h"
 #include "nsGtkUtils.h"
 #include "nsWaylandDisplay.h"
 #include "base/task.h"
@@ -170,7 +171,7 @@
   container->viewport = nullptr;
   container->ready_to_draw = false;
   container->opaque_region_needs_updates = false;
-  container->opaque_region_subtract_corners = false;
+  container->opaque_region_corner_radius = 0;
   container->opaque_region_used = false;
   container->subsurface_dx = 0;
   container->subsurface_dy = 0;
@@ -392,15 +393,14 @@
 }
 
 static wl_region* moz_container_wayland_create_opaque_region(
-    int aX, int aY, int aWidth, int aHeight, bool aSubtractCorners) {
+    int aX, int aY, int aWidth, int aHeight, int aCornerRadius) {
   struct wl_compositor* compositor = WaylandDisplayGet()->GetCompositor();
   wl_region* region = wl_compositor_create_region(compositor);
   wl_region_add(region, aX, aY, aWidth, aHeight);
-  if (aSubtractCorners) {
-    wl_region_subtract(region, aX, aY, TITLEBAR_SHAPE_MASK_HEIGHT,
-                       TITLEBAR_SHAPE_MASK_HEIGHT);
-    wl_region_subtract(region, aX + aWidth - TITLEBAR_SHAPE_MASK_HEIGHT, aY,
-                       TITLEBAR_SHAPE_MASK_HEIGHT, TITLEBAR_SHAPE_MASK_HEIGHT);
+  if (aCornerRadius) {
+    wl_region_subtract(region, aX, aY, aCornerRadius, aCornerRadius);
+    wl_region_subtract(region, aX + aWidth - aCornerRadius, aY, aCornerRadius,
+                       aCornerRadius);
   }
   return region;
 }
@@ -423,7 +423,7 @@
 
   wl_region* region = moz_container_wayland_create_opaque_region(
       0, 0, allocation.width, allocation.height,
-      wl_container->opaque_region_subtract_corners);
+      wl_container->opaque_region_corner_radius);
   wl_surface_set_opaque_region(wl_container->surface, region);
   wl_region_destroy(region);
   wl_container->opaque_region_needs_updates = false;
@@ -627,10 +627,10 @@
 }
 
 void moz_container_wayland_update_opaque_region(MozContainer* container,
-                                                bool aSubtractCorners) {
+                                                int corner_radius) {
   MozContainerWayland* wl_container = &container->wl_container;
   wl_container->opaque_region_needs_updates = true;
-  wl_container->opaque_region_subtract_corners = aSubtractCorners;
+  wl_container->opaque_region_corner_radius = corner_radius;
 
   // When GL compositor / WebRender is used,
   // moz_container_wayland_get_egl_window() is called only once when window
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/MozContainerWayland.h firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/MozContainerWayland.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/MozContainerWayland.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/MozContainerWayland.h	2021-10-20 19:28:51.000000000 +0000
@@ -40,7 +40,7 @@
   struct wl_callback* frame_callback_handler;
   struct wp_viewport* viewport;
   gboolean opaque_region_needs_updates;
-  gboolean opaque_region_subtract_corners;
+  int opaque_region_corner_radius;
   gboolean opaque_region_used;
   gboolean ready_to_draw;
   gboolean commit_to_parent;
@@ -82,7 +82,7 @@
     MozContainer* container, const std::function<void(void)>& initial_draw_cb);
 wl_surface* moz_gtk_widget_get_wl_surface(GtkWidget* aWidget);
 void moz_container_wayland_update_opaque_region(MozContainer* container,
-                                                bool aSubtractCorners);
+                                                int corner_radius);
 gboolean moz_container_wayland_can_draw(MozContainer* container);
 double moz_container_wayland_get_scale(MozContainer* container);
 void moz_container_wayland_set_commit_to_parent(MozContainer* container);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/nsLookAndFeel.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/nsLookAndFeel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/nsLookAndFeel.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/nsLookAndFeel.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -386,8 +386,8 @@
     case ColorID::WindowBackground:
     case ColorID::WidgetBackground:
     case ColorID::TextBackground:
-    case ColorID::Appworkspace:   // MDI background color
-    case ColorID::Background:     // desktop background
+    case ColorID::Appworkspace:  // MDI background color
+    case ColorID::Background:    // desktop background
     case ColorID::Window:
     case ColorID::Windowframe:
     case ColorID::MozDialog:
@@ -486,7 +486,7 @@
       // inactive window border
       aColor = mMozWindowInactiveBorder;
       break;
-    case ColorID::Graytext:             // disabled text in windows, menus, etc.
+    case ColorID::Graytext:  // disabled text in windows, menus, etc.
       aColor = mMenuTextInactive;
       break;
     case ColorID::Activecaption:
@@ -805,15 +805,6 @@
       EnsureInit();
       aResult = mCSDCloseButton;
       break;
-    case IntID::GTKCSDTransparentBackground: {
-      // Enable transparent titlebar corners for titlebar mode.
-      GdkScreen* screen = gdk_screen_get_default();
-      aResult = gdk_screen_is_composited(screen)
-                    ? (nsWindow::GtkWindowDecoration() !=
-                       nsWindow::GTK_DECORATION_NONE)
-                    : false;
-      break;
-    }
     case IntID::GTKCSDReversedPlacement:
       EnsureInit();
       aResult = mCSDReversedPlacement;
@@ -881,6 +872,10 @@
       EnsureInit();
       aResult = mSystemTheme.mCaretRatio;
       break;
+    case FloatID::TitlebarRadius:
+      EnsureInit();
+      aResult = EffectiveTheme().mTitlebarRadius;
+      break;
     case FloatID::TextScaleFactor:
       aResult = gfxPlatformGtk::GetFontScaleFactor();
       break;
@@ -1529,6 +1524,36 @@
     mTitlebarInactiveText = GDK_RGBA_TO_NS_RGBA(color);
     mTitlebarInactiveBackground =
         GetBackgroundColor(style, mTitlebarText, GTK_STATE_FLAG_BACKDROP);
+
+    GValue value = G_VALUE_INIT;
+    // NOTE(emilio): In an ideal world, we'd query the two longhands
+    // (border-top-left-radius and border-top-right-radius) separately. However,
+    // that doesn't work (GTK rejects the query with:
+    //
+    //   Style property "border-top-left-radius" is not gettable
+    //
+    // However! Getting border-radius does work, and it does return the
+    // border-top-left-radius as a gint:
+    //
+    //   https://docs.gtk.org/gtk3/const.STYLE_PROPERTY_BORDER_RADIUS.html
+    //   https://gitlab.gnome.org/GNOME/gtk/-/blob/gtk-3-20/gtk/gtkcssshorthandpropertyimpl.c#L961-977
+    //
+    // So we abuse this fact, and make the assumption here that the
+    // border-top-{left,right}-radius are the same, and roll with it.
+    gtk_style_context_get_property(style, "border-radius",
+                                   GTK_STATE_FLAG_NORMAL, &value);
+
+    mTitlebarRadius = [&]() -> float {
+      auto type = G_VALUE_TYPE(&value);
+      if (type == G_TYPE_INT) {
+        return float(g_value_get_int(&value));
+      }
+      NS_WARNING(
+          nsPrintfCString("Unknown value type %lu for titlebar radius", type)
+              .get());
+      return 0.0f;
+    }();
+    g_value_unset(&value);
   }
 
   style = GetStyleContext(MOZ_GTK_MENUPOPUP);
@@ -1790,6 +1815,7 @@
              GetColorPrefName(id), NS_SUCCEEDED(rv),
              NS_SUCCEEDED(rv) ? color : 0);
     }
+    LOGLNF(" * titlebar-radius: %f\n", mTitlebarRadius);
   }
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/nsLookAndFeel.h firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/nsLookAndFeel.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/nsLookAndFeel.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/nsLookAndFeel.h	2021-10-20 19:28:51.000000000 +0000
@@ -123,6 +123,7 @@
     nscolor mThemedScrollbarThumbInactive = kBlack;
 
     float mCaretRatio = 0.0f;
+    float mTitlebarRadius = 0.0f;
     char16_t mInvisibleCharacter = 0;
     bool mMenuSupportsDrag = false;
 
@@ -147,6 +148,10 @@
     return mSystemTheme.mIsDark ? mSystemTheme : mAltTheme;
   }
 
+  const PerThemeData& EffectiveTheme() const {
+    return mSystemThemeOverridden ? mAltTheme : mSystemTheme;
+  }
+
   int32_t mCaretBlinkTime = 0;
   int32_t mCaretBlinkCount = -1;
   bool mCSDAvailable = false;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/nsWindow.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/nsWindow.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/nsWindow.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/nsWindow.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -185,9 +185,6 @@
 static GtkWidget* get_gtk_widget_for_gdk_window(GdkWindow* window);
 static GdkCursor* get_gtk_cursor(nsCursor aCursor);
 
-static GdkWindow* get_inner_gdk_window(GdkWindow* aWindow, gint x, gint y,
-                                       gint* retx, gint* rety);
-
 static int is_parent_ungrab_enter(GdkEventCrossing* aEvent);
 static int is_parent_grab_leave(GdkEventCrossing* aEvent);
 
@@ -344,8 +341,6 @@
 // cursor cache
 static GdkCursor* gCursorCache[eCursorCount];
 
-static GtkWidget* gInvisibleContainer = nullptr;
-
 // Sometimes this actually also includes the state of the modifier keys, but
 // only the button state bits are used.
 static guint gButtonState;
@@ -416,9 +411,7 @@
 }
 
 nsWindow::nsWindow()
-    : mIsTopLevel(false),
-      mIsDestroyed(false),
-      mListenForResizes(false),
+    : mIsDestroyed(false),
       mNeedsDispatchResized(false),
       mIsShown(false),
       mNeedsShow(false),
@@ -537,12 +530,6 @@
   }
 }
 
-void nsWindow::CommonCreate(nsIWidget* aParent, bool aListenForResizes) {
-  mParent = aParent;
-  mListenForResizes = aListenForResizes;
-  mCreated = true;
-}
-
 void nsWindow::DispatchActivateEvent(void) {
   NS_ASSERTION(mContainer || mIsDestroyed,
                "DispatchActivateEvent only intended for container windows");
@@ -621,81 +608,6 @@
   return mBounds.width > 0 && mBounds.height > 0;
 }
 
-static GtkWidget* EnsureInvisibleContainer() {
-  if (!gInvisibleContainer) {
-    // GtkWidgets need to be anchored to a GtkWindow to be realized (to
-    // have a window).  Using GTK_WINDOW_POPUP rather than
-    // GTK_WINDOW_TOPLEVEL in the hope that POPUP results in less
-    // initialization and window manager interaction.
-    GtkWidget* window = gtk_window_new(GTK_WINDOW_POPUP);
-    gInvisibleContainer = moz_container_new();
-    gtk_container_add(GTK_CONTAINER(window), gInvisibleContainer);
-    gtk_widget_realize(gInvisibleContainer);
-  }
-  return gInvisibleContainer;
-}
-
-static void CheckDestroyInvisibleContainer() {
-  MOZ_ASSERT(gInvisibleContainer, "oh, no");
-  if (!gdk_window_peek_children(gtk_widget_get_window(gInvisibleContainer))) {
-    // No children, so not in use.
-    // Make sure to destroy the GtkWindow also.
-    gtk_widget_destroy(gtk_widget_get_parent(gInvisibleContainer));
-    gInvisibleContainer = nullptr;
-  }
-}
-
-// Change the containing GtkWidget on a sub-hierarchy of GdkWindows belonging
-// to aOldWidget and rooted at aWindow, and reparent any child GtkWidgets of
-// the GdkWindow hierarchy to aNewWidget.
-static void SetWidgetForHierarchy(GdkWindow* aWindow, GtkWidget* aOldWidget,
-                                  GtkWidget* aNewWidget) {
-  gpointer data;
-  gdk_window_get_user_data(aWindow, &data);
-
-  if (data != aOldWidget) {
-    if (!GTK_IS_WIDGET(data)) return;
-
-    auto* widget = static_cast<GtkWidget*>(data);
-    if (gtk_widget_get_parent(widget) != aOldWidget) return;
-
-    // This window belongs to a child widget, which will no longer be a
-    // child of aOldWidget.
-    gtk_widget_reparent(widget, aNewWidget);
-
-    return;
-  }
-
-  GList* children = gdk_window_get_children(aWindow);
-  for (GList* list = children; list; list = list->next) {
-    SetWidgetForHierarchy(GDK_WINDOW(list->data), aOldWidget, aNewWidget);
-  }
-  g_list_free(children);
-
-  gdk_window_set_user_data(aWindow, aNewWidget);
-}
-
-// Walk the list of child windows and call destroy on them.
-void nsWindow::DestroyChildWindows() {
-  if (!mGdkWindow) return;
-
-  while (GList* children = gdk_window_peek_children(mGdkWindow)) {
-    GdkWindow* child = GDK_WINDOW(children->data);
-    nsWindow* kid = get_window_for_gdk_window(child);
-    if (kid) {
-      kid->Destroy();
-    } else {
-      // This child is not an nsWindow.
-      // Destroy the child GtkWidget.
-      gpointer data;
-      gdk_window_get_user_data(child, &data);
-      if (GTK_IS_WIDGET(data)) {
-        gtk_widget_destroy(static_cast<GtkWidget*>(data));
-      }
-    }
-  }
-}
-
 void nsWindow::Destroy() {
   if (mIsDestroyed || !mCreated) return;
 
@@ -761,33 +673,12 @@
     gFocusWindow = nullptr;
   }
 
-  GtkWidget* owningWidget = GetMozContainerWidget();
   if (mShell) {
     gtk_widget_destroy(mShell);
     mShell = nullptr;
     mContainer = nullptr;
     MOZ_ASSERT(!mGdkWindow,
                "mGdkWindow should be NULL when mContainer is destroyed");
-  } else if (mContainer) {
-    gtk_widget_destroy(GTK_WIDGET(mContainer));
-    mContainer = nullptr;
-    MOZ_ASSERT(!mGdkWindow,
-               "mGdkWindow should be NULL when mContainer is destroyed");
-  } else if (mGdkWindow) {
-    // Destroy child windows to ensure that their mThebesSurfaces are
-    // released and to remove references from GdkWindows back to their
-    // container widget.  (OnContainerUnrealize() does this when the
-    // MozContainer widget is destroyed.)
-    DestroyChildWindows();
-
-    gdk_window_set_user_data(mGdkWindow, nullptr);
-    g_object_set_data(G_OBJECT(mGdkWindow), "nsWindow", nullptr);
-    gdk_window_destroy(mGdkWindow);
-    mGdkWindow = nullptr;
-  }
-
-  if (gInvisibleContainer && owningWidget == gInvisibleContainer) {
-    CheckDestroyInvisibleContainer();
   }
 
 #ifdef ACCESSIBILITY
@@ -854,79 +745,11 @@
   return nsBaseWidget::GetDesktopToDeviceScale();
 }
 
-void nsWindow::SetParent(nsIWidget* aNewParent) {
-  LOG("nsWindow::SetParent [%p] parent %p\n", (void*)this, aNewParent);
-
-  if (!mGdkWindow) {
-    MOZ_ASSERT_UNREACHABLE("The native window has already been destroyed");
-    return;
-  }
-
-  if (mContainer) {
-    // FIXME bug 1469183
-    NS_ERROR("nsWindow should not have a container here");
-    return;
-  }
-
-  nsCOMPtr<nsIWidget> kungFuDeathGrip = this;
-  if (mParent) {
-    mParent->RemoveChild(this);
-  }
-  mParent = aNewParent;
-
-  GtkWidget* oldContainer = GetMozContainerWidget();
-  if (!oldContainer) {
-    // The GdkWindows have been destroyed so there is nothing else to
-    // reparent.
-    MOZ_ASSERT(gdk_window_is_destroyed(mGdkWindow),
-               "live GdkWindow with no widget");
-    return;
-  }
-
-  nsWindow* newParent = static_cast<nsWindow*>(aNewParent);
-  GdkWindow* newParentWindow = nullptr;
-  GtkWidget* newContainer = nullptr;
-  if (aNewParent) {
-    aNewParent->AddChild(this);
-    newParentWindow = newParent->mGdkWindow;
-    newContainer = newParent->GetMozContainerWidget();
-  } else {
-    // aNewParent is nullptr, but reparent to a hidden window to avoid
-    // destroying the GdkWindow and its descendants.
-    // An invisible container widget is needed to hold descendant
-    // GtkWidgets.
-    newContainer = EnsureInvisibleContainer();
-    newParentWindow = gtk_widget_get_window(newContainer);
-  }
-
-  if (!newContainer) {
-    // The new parent GdkWindow has been destroyed.
-    MOZ_ASSERT(!newParentWindow || gdk_window_is_destroyed(newParentWindow),
-               "live GdkWindow with no widget");
-    Destroy();
-  } else {
-    if (newContainer != oldContainer) {
-      MOZ_ASSERT(!gdk_window_is_destroyed(newParentWindow),
-                 "destroyed GdkWindow with widget");
-      SetWidgetForHierarchy(mGdkWindow, oldContainer, newContainer);
-
-      if (oldContainer == gInvisibleContainer) {
-        CheckDestroyInvisibleContainer();
-      }
-    }
-
-    gdk_window_reparent(mGdkWindow, newParentWindow,
-                        DevicePixelsToGdkCoordRoundDown(mBounds.x),
-                        DevicePixelsToGdkCoordRoundDown(mBounds.y));
-  }
-
-  bool parentHasMappedToplevel = newParent && newParent->mHasMappedToplevel;
-  if (mHasMappedToplevel != parentHasMappedToplevel) {
-    SetHasMappedToplevel(parentHasMappedToplevel);
+bool nsWindow::WidgetTypeSupportsAcceleration() {
+  if (mWindowType == eWindowType_invisible) {
+    return false;
   }
-}
 
-bool nsWindow::WidgetTypeSupportsAcceleration() {
   if (IsSmallPopup()) {
     return false;
   }
@@ -936,39 +759,13 @@
   if (mWindowType == eWindowType_popup) {
     return HasRemoteContent() && mCompositedScreen;
   }
-  // Workaround for Bug 1730822
-  if (mWindowType == eWindowType_child && GdkIsX11Display() &&
-      gfxVars::UseEGL()) {
-    return false;
-  }
 
   return true;
 }
 
-void nsWindow::ReparentNativeWidget(nsIWidget* aNewParent) {
-  MOZ_ASSERT(aNewParent, "null widget");
-  MOZ_ASSERT(!mIsDestroyed, "");
-  MOZ_ASSERT(!static_cast<nsWindow*>(aNewParent)->mIsDestroyed, "");
-  MOZ_ASSERT(!gdk_window_is_destroyed(mGdkWindow),
-             "destroyed GdkWindow with widget");
-
-  MOZ_ASSERT(
-      !mParent,
-      "nsWindow::ReparentNativeWidget() works on toplevel windows only.");
-
-  auto* newParent = static_cast<nsWindow*>(aNewParent);
-  GtkWindow* newParentWidget = GTK_WINDOW(newParent->GetGtkWidget());
-  GtkWindow* shell = GTK_WINDOW(mShell);
-
-  if (shell && gtk_window_get_transient_for(shell)) {
-    gtk_window_set_transient_for(shell, newParentWidget);
-  }
-}
-
 void nsWindow::SetModal(bool aModal) {
   LOG("nsWindow::SetModal [%p] %d\n", (void*)this, aModal);
   if (mIsDestroyed) return;
-  if (!mIsTopLevel || !mShell) return;
   gtk_window_set_modal(GTK_WINDOW(mShell), aModal ? TRUE : FALSE);
 }
 
@@ -981,7 +778,7 @@
 }
 
 void nsWindow::ConstrainPosition(bool aAllowSlop, int32_t* aX, int32_t* aY) {
-  if (!mIsTopLevel || !mShell || GdkIsWaylandDisplay()) {
+  if (!mShell || GdkIsWaylandDisplay()) {
     return;
   }
 
@@ -1052,7 +849,7 @@
 void nsWindow::AddCSDDecorationSize(int* aWidth, int* aHeight) {
   if (mSizeState == nsSizeMode_Normal &&
       mGtkWindowDecoration == GTK_DECORATION_CLIENT && mDrawInTitlebar) {
-    GtkBorder decorationSize = GetCSDDecorationSize(!mIsTopLevel);
+    GtkBorder decorationSize = GetCSDDecorationSize(IsPopup());
     *aWidth += decorationSize.left + decorationSize.right;
     *aHeight += decorationSize.top + decorationSize.bottom;
   }
@@ -1062,7 +859,7 @@
 bool nsWindow::GetCSDDecorationOffset(int* aDx, int* aDy) {
   if (mSizeState == nsSizeMode_Normal &&
       mGtkWindowDecoration == GTK_DECORATION_CLIENT && mDrawInTitlebar) {
-    GtkBorder decorationSize = GetCSDDecorationSize(!mIsTopLevel);
+    GtkBorder decorationSize = GetCSDDecorationSize(IsPopup());
     *aDx = decorationSize.left;
     *aDy = decorationSize.top;
     return true;
@@ -1187,10 +984,7 @@
   NativeMoveResize(aMove, true);
   NotifyRollupGeometryChange();
 
-  // send a resize notification if this is a toplevel
-  if (mIsTopLevel || mListenForResizes) {
-    DispatchResized();
-  }
+  DispatchResized();
 }
 
 void nsWindow::Resize(double aWidth, double aHeight, bool aRepaint) {
@@ -1271,9 +1065,7 @@
   }
 }
 
-bool nsWindow::IsPopup() {
-  return mIsTopLevel && mWindowType == eWindowType_popup;
-}
+bool nsWindow::IsPopup() { return mWindowType == eWindowType_popup; }
 
 bool nsWindow::IsWaylandPopup() { return GdkIsWaylandDisplay() && IsPopup(); }
 
@@ -2982,7 +2774,7 @@
 
 LayoutDeviceIntRect nsWindow::GetScreenBounds() {
   LayoutDeviceIntRect rect;
-  if (mIsTopLevel && mContainer) {
+  if (mContainer) {
     // use the point including window decorations
     gint x, y;
     gdk_window_get_root_origin(gtk_widget_get_window(GTK_WIDGET(mContainer)),
@@ -3025,7 +2817,7 @@
     return;
   }
 
-  if (!mIsTopLevel || !mShell ||
+  if (!mShell ||
       gtk_window_get_window_type(GTK_WINDOW(mShell)) == GTK_WINDOW_POPUP) {
     mClientOffset = nsIntPoint(0, 0);
     return;
@@ -3636,24 +3428,6 @@
     }
   }
 
-  if (!shaped) {
-    GList* children = gdk_window_peek_children(mGdkWindow);
-    while (children) {
-      GdkWindow* gdkWin = GDK_WINDOW(children->data);
-      nsWindow* kid = get_window_for_gdk_window(gdkWin);
-      if (kid && gdk_window_is_visible(gdkWin)) {
-        AutoTArray<LayoutDeviceIntRect, 1> clipRects;
-        kid->GetWindowClipRegion(&clipRects);
-        LayoutDeviceIntRect bounds = kid->GetBounds();
-        for (uint32_t i = 0; i < clipRects.Length(); ++i) {
-          LayoutDeviceIntRect r = clipRects[i] + bounds.TopLeft();
-          region.Sub(region, r);
-        }
-      }
-      children = children->next;
-    }
-  }
-
   if (region.IsEmpty()) {
     return TRUE;
   }
@@ -3919,8 +3693,6 @@
   // hierarchy is still available.
 
   if (mGdkWindow) {
-    DestroyChildWindows();
-
     g_object_set_data(G_OBJECT(mGdkWindow), "nsWindow", nullptr);
     mGdkWindow = nullptr;
   }
@@ -5239,16 +5011,9 @@
   // initialize all the common bits of this class
   BaseCreate(baseParent, aInitData);
 
-  // Do we need to listen for resizes?
-  bool listenForResizes = false;
-
-  if (aNativeParent || (aInitData && aInitData->mListenForResizes)) {
-    listenForResizes = true;
-  }
-
   // and do our common creation
-  CommonCreate(aParent, listenForResizes);
-
+  mParent = aParent;
+  mCreated = true;
   // save our bounds
   mBounds = aRect;
   LOG("  mBounds: x:%d y:%d w:%d h:%d\n", mBounds.x, mBounds.y, mBounds.width,
@@ -5307,8 +5072,6 @@
     case eWindowType_popup:
     case eWindowType_toplevel:
     case eWindowType_invisible: {
-      mIsTopLevel = true;
-
       // Popups that are not noautohide are only temporary. The are used
       // for menus and the like and disappear when another window is used.
       // For most popups, use the standard GtkWindowType GTK_WINDOW_POPUP,
@@ -5604,16 +5367,9 @@
         SetWindowMouseTransparent(aInitData->mMouseTransparent);
       }
     } break;
-
-    case eWindowType_plugin:
-    case eWindowType_plugin_ipc_chrome:
-    case eWindowType_plugin_ipc_content:
-      MOZ_ASSERT_UNREACHABLE("Unexpected eWindowType_plugin*");
-      return NS_ERROR_FAILURE;
     default:
       MOZ_ASSERT_UNREACHABLE("Unexpected eWindowType");
       return NS_ERROR_FAILURE;
-      break;
   }
 
   // label the drawing window with this object so we can find our way home
@@ -5752,22 +5508,8 @@
 
   LOG("nsWindow [%p] type %d %s\n", (void*)this, mWindowType,
       mIsPIPWindow ? "PIP window" : "");
-  if (mShell) {
-    LOG("\tmShell %p mContainer %p mGdkWindow %p XID 0x%lx\n", mShell,
-        mContainer, mGdkWindow,
-        GdkIsX11Display() ? gdk_x11_window_get_xid(mGdkWindow) : 0);
-  } else if (mContainer) {
-    LOG("\tmContainer %p mGdkWindow %p\n", mContainer, mGdkWindow);
-  } else if (mGdkWindow) {
-    LOG("\tmGdkWindow %p parent %p\n", mGdkWindow,
-        gdk_window_get_parent(mGdkWindow));
-  }
-
-  // resize so that everything is set to the right dimensions
-  if (!mIsTopLevel) {
-    ResizeInt(mBounds.x, mBounds.y, mBounds.width, mBounds.height,
-              /* aMove */ false, /* aRepaint */ false);
-  }
+  LOG("\tmShell %p mContainer %p mGdkWindow %p XID 0x%lx\n", mShell, mContainer,
+      mGdkWindow, GdkIsX11Display() ? gdk_x11_window_get_xid(mGdkWindow) : 0);
 
 #ifdef MOZ_X11
   if (GdkIsX11Display() && mGdkWindow) {
@@ -5780,14 +5522,13 @@
 
     mSurfaceProvider.Initialize(mXWindow, mXVisual, mXDepth, shaped);
 
-    if (mIsTopLevel) {
-      // Set window manager hint to keep fullscreen windows composited.
-      //
-      // If the window were to get unredirected, there could be visible
-      // tearing because Gecko does not align its framebuffer updates with
-      // vblank.
-      SetCompositorHint(GTK_WIDGET_COMPOSIDED_ENABLED);
-    }
+    // Set window manager hint to keep fullscreen windows composited.
+    //
+    // If the window were to get unredirected, there could be visible
+    // tearing because Gecko does not align its framebuffer updates with
+    // vblank.
+    SetCompositorHint(GTK_WIDGET_COMPOSIDED_ENABLED);
+
     // Dummy call to a function in mozgtk to prevent the linker from removing
     // the dependency with --as-needed.
     XShmQueryExtension(DefaultXDisplay());
@@ -5910,24 +5651,12 @@
   if (IsWaylandPopup()) {
     NativeMoveResizeWaylandPopup(aMoved, aResized);
   } else {
-    if (mIsTopLevel) {
-      // x and y give the position of the window manager frame top-left.
-      if (aMoved) {
-        gtk_window_move(GTK_WINDOW(mShell), topLeft.x, topLeft.y);
-      }
-      if (aResized) {
-        gtk_window_resize(GTK_WINDOW(mShell), size.width, size.height);
-      }
-    } else if (mContainer) {
-      GtkAllocation allocation;
-      allocation.x = topLeft.x;
-      allocation.y = topLeft.y;
-      allocation.width = size.width;
-      allocation.height = size.height;
-      gtk_widget_size_allocate(GTK_WIDGET(mContainer), &allocation);
-    } else if (mGdkWindow) {
-      gdk_window_move_resize(mGdkWindow, topLeft.x, topLeft.y, size.width,
-                             size.height);
+    // x and y give the position of the window manager frame top-left.
+    if (aMoved) {
+      gtk_window_move(GTK_WINDOW(mShell), topLeft.x, topLeft.y);
+    }
+    if (aResized) {
+      gtk_window_resize(GTK_WINDOW(mShell), size.width, size.height);
     }
   }
 
@@ -6134,37 +5863,29 @@
 
     LOG("nsWindow::NativeShow show [%p]\n", this);
 
-    if (mIsTopLevel) {
-      if (IsWaylandPopup()) {
-        mPopupClosed = false;
-        if (WaylandPopupNeedsTrackInHierarchy()) {
-          AddWindowToPopupHierarchy();
-          UpdateWaylandPopupHierarchy();
-          if (mPopupClosed) {
-            return;
-          }
+    if (IsWaylandPopup()) {
+      mPopupClosed = false;
+      if (WaylandPopupNeedsTrackInHierarchy()) {
+        AddWindowToPopupHierarchy();
+        UpdateWaylandPopupHierarchy();
+        if (mPopupClosed) {
+          return;
         }
       }
-      // Set up usertime/startupID metadata for the created window.
-      if (mWindowType != eWindowType_invisible) {
-        SetUserTimeAndStartupIDForActivatedWindow(mShell);
-      }
-      if (GdkIsWaylandDisplay()) {
-        ShowWaylandWindow();
-        WaylandStartVsync();
-      } else {
-        LOG("  calling gtk_widget_show(mShell) [%p]\n", this);
-        gtk_widget_show(mShell);
-      }
-    } else if (mContainer) {
-      LOG("  calling gtk_widget_show(mContainer)\n");
-      gtk_widget_show(GTK_WIDGET(mContainer));
-    } else if (mGdkWindow) {
-      LOG("  calling gdk_window_show_unraised\n");
-      gdk_window_show_unraised(mGdkWindow);
+    }
+    // Set up usertime/startupID metadata for the created window.
+    if (mWindowType != eWindowType_invisible) {
+      SetUserTimeAndStartupIDForActivatedWindow(mShell);
+    }
+    if (GdkIsWaylandDisplay()) {
+      ShowWaylandWindow();
+      WaylandStartVsync();
+    } else {
+      LOG("  calling gtk_widget_show(mShell) [%p]\n", this);
+      gtk_widget_show(mShell);
     }
 
-    if (mHiddenPopupPositioned && IsPopup() && mIsTopLevel) {
+    if (mHiddenPopupPositioned && IsPopup()) {
       gtk_window_move(GTK_WINDOW(mShell), mPopupPosition.x, mPopupPosition.y);
       mHiddenPopupPositioned = false;
     }
@@ -6191,7 +5912,7 @@
       } else {
         HideWaylandToplevelWindow();
       }
-    } else if (mIsTopLevel) {
+    } else {
       // Workaround window freezes on GTK versions before 3.21.2 by
       // ensuring that configure events get dispatched to windows before
       // they are unmapped. See bug 1225044.
@@ -6218,10 +5939,6 @@
       gtk_widget_hide(mShell);
 
       ClearTransparencyBitmap();  // Release some resources
-    } else if (mContainer) {
-      gtk_widget_hide(GTK_WIDGET(mContainer));
-    } else if (mGdkWindow) {
-      gdk_window_hide(mGdkWindow);
     }
   }
 }
@@ -6247,16 +5964,6 @@
     // viewable.
     EnsureGrabs();
   }
-
-  for (GList* children = gdk_window_peek_children(mGdkWindow); children;
-       children = children->next) {
-    GdkWindow* gdkWin = GDK_WINDOW(children->data);
-    nsWindow* child = get_window_for_gdk_window(gdkWin);
-
-    if (child && child->mHasMappedToplevel != aState) {
-      child->SetHasMappedToplevel(aState);
-    }
-  }
 }
 
 LayoutDeviceIntSize nsWindow::GetSafeWindowSize(LayoutDeviceIntSize aSize) {
@@ -6292,14 +5999,6 @@
   }
 
   DestroyCompositor();
-
-  GList* children = gdk_window_peek_children(mGdkWindow);
-  for (GList* list = children; list; list = list->next) {
-    nsWindow* window = get_window_for_gdk_window(GDK_WINDOW(list->data));
-    if (window) {
-      window->CleanLayerManagerRecursive();
-    }
-  }
 }
 
 void nsWindow::SetTransparencyMode(nsTransparencyMode aMode) {
@@ -6400,20 +6099,28 @@
   }
 }
 
+LayoutDeviceIntCoord nsWindow::GetTitlebarRadius() {
+  int32_t cssCoord =
+      std::ceil(LookAndFeel::GetFloat(LookAndFeel::FloatID::TitlebarRadius));
+  return GdkCoordToDevicePixels(cssCoord);
+}
+
 // See subtract_corners_from_region() at gtk/gtkwindow.c
 // We need to subtract corners from toplevel window opaque region
 // to draw transparent corners of default Gtk titlebar.
 // Both implementations (cairo_region_t and wl_region) needs to be synced.
 static void SubtractTitlebarCorners(cairo_region_t* aRegion, int aX, int aY,
-                                    int aWindowWidth) {
-  cairo_rectangle_int_t rect = {aX, aY, TITLEBAR_SHAPE_MASK_HEIGHT,
-                                TITLEBAR_SHAPE_MASK_HEIGHT};
+                                    int aWindowWidth, int aTitlebarRadius) {
+  if (!aTitlebarRadius) {
+    return;
+  }
+  cairo_rectangle_int_t rect = {aX, aY, aTitlebarRadius, aTitlebarRadius};
   cairo_region_subtract_rectangle(aRegion, &rect);
   rect = {
-      aX + aWindowWidth - TITLEBAR_SHAPE_MASK_HEIGHT,
+      aX + aWindowWidth - aTitlebarRadius,
       aY,
-      TITLEBAR_SHAPE_MASK_HEIGHT,
-      TITLEBAR_SHAPE_MASK_HEIGHT,
+      aTitlebarRadius,
+      aTitlebarRadius,
   };
   cairo_region_subtract_rectangle(aRegion, &rect);
 }
@@ -6444,10 +6151,8 @@
   cairo_rectangle_int_t rect = {x, y, width, height};
   cairo_region_union_rectangle(region, &rect);
 
-  bool subtractCorners = DoDrawTilebarCorners();
-  if (subtractCorners) {
-    SubtractTitlebarCorners(region, x, y, width);
-  }
+  int radius = DoDrawTilebarCorners() ? int(GetTitlebarRadius()) : 0;
+  SubtractTitlebarCorners(region, x, y, width, radius);
 
   gdk_window_set_opaque_region(window, region);
 
@@ -6455,7 +6160,7 @@
 
 #ifdef MOZ_WAYLAND
   if (GdkIsWaylandDisplay()) {
-    moz_container_wayland_update_opaque_region(mContainer, subtractCorners);
+    moz_container_wayland_update_opaque_region(mContainer, radius);
   }
 #endif
 }
@@ -6470,77 +6175,6 @@
          !mIsTiled;
 }
 
-nsresult nsWindow::ConfigureChildren(
-    const nsTArray<Configuration>& aConfigurations) {
-  // If this is a remotely updated widget we receive clipping, position, and
-  // size information from a source other than our owner. Don't let our parent
-  // update this information.
-  if (mWindowType == eWindowType_plugin_ipc_chrome) {
-    return NS_OK;
-  }
-
-  for (uint32_t i = 0; i < aConfigurations.Length(); ++i) {
-    const Configuration& configuration = aConfigurations[i];
-    auto* w = static_cast<nsWindow*>(configuration.mChild.get());
-    NS_ASSERTION(w->GetParent() == this, "Configured widget is not a child");
-    w->SetWindowClipRegion(configuration.mClipRegion, true);
-    if (w->mBounds.Size() != configuration.mBounds.Size()) {
-      w->Resize(configuration.mBounds.x, configuration.mBounds.y,
-                configuration.mBounds.width, configuration.mBounds.height,
-                true);
-    } else if (w->mBounds.TopLeft() != configuration.mBounds.TopLeft()) {
-      w->Move(configuration.mBounds.x, configuration.mBounds.y);
-    }
-    w->SetWindowClipRegion(configuration.mClipRegion, false);
-  }
-  return NS_OK;
-}
-
-nsresult nsWindow::SetWindowClipRegion(
-    const nsTArray<LayoutDeviceIntRect>& aRects, bool aIntersectWithExisting) {
-  const nsTArray<LayoutDeviceIntRect>* newRects = &aRects;
-
-  AutoTArray<LayoutDeviceIntRect, 1> intersectRects;
-  if (aIntersectWithExisting) {
-    AutoTArray<LayoutDeviceIntRect, 1> existingRects;
-    GetWindowClipRegion(&existingRects);
-
-    LayoutDeviceIntRegion existingRegion = RegionFromArray(existingRects);
-    LayoutDeviceIntRegion newRegion = RegionFromArray(aRects);
-    LayoutDeviceIntRegion intersectRegion;
-    intersectRegion.And(newRegion, existingRegion);
-
-    // If mClipRects is null we haven't set a clip rect yet, so we
-    // need to set the clip even if it is equal.
-    if (mClipRects && intersectRegion.IsEqual(existingRegion)) {
-      return NS_OK;
-    }
-
-    if (!intersectRegion.IsEqual(newRegion)) {
-      ArrayFromRegion(intersectRegion, intersectRects);
-      newRects = &intersectRects;
-    }
-  }
-
-  if (IsWindowClipRegionEqual(*newRects)) return NS_OK;
-
-  StoreWindowClipRegion(*newRects);
-
-  if (!mGdkWindow) return NS_OK;
-
-  cairo_region_t* region = cairo_region_create();
-  for (uint32_t i = 0; i < newRects->Length(); ++i) {
-    const LayoutDeviceIntRect& r = newRects->ElementAt(i);
-    cairo_rectangle_int_t rect = {r.x, r.y, r.width, r.height};
-    cairo_region_union_rectangle(region, &rect);
-  }
-
-  gdk_window_shape_combine_region(mGdkWindow, region, 0, 0);
-  cairo_region_destroy(region);
-
-  return NS_OK;
-}
-
 void nsWindow::ResizeTransparencyBitmap() {
   if (!mTransparencyBitmap) return;
 
@@ -6723,7 +6357,7 @@
     return LayoutDeviceIntRect();
   }
 
-  return LayoutDeviceIntRect(0, 0, mBounds.width, TITLEBAR_SHAPE_MASK_HEIGHT);
+  return LayoutDeviceIntRect(0, 0, mBounds.width, GetTitlebarRadius());
 }
 
 void nsWindow::UpdateTitlebarTransparencyBitmap() {
@@ -6742,9 +6376,10 @@
   bool maskUpdate =
       !mTransparencyBitmap || mBounds.width != mTransparencyBitmapWidth;
 
+  LayoutDeviceIntCoord radius = GetTitlebarRadius();
   if (maskCreate) {
     delete[] mTransparencyBitmap;
-    int32_t size = GetBitmapStride(mBounds.width) * TITLEBAR_SHAPE_MASK_HEIGHT;
+    int32_t size = GetBitmapStride(mBounds.width) * radius;
     mTransparencyBitmap = new gchar[size];
     mTransparencyBitmapWidth = mBounds.width;
   } else {
@@ -6754,15 +6389,14 @@
 
   if (maskUpdate) {
     cairo_surface_t* surface = cairo_image_surface_create(
-        CAIRO_FORMAT_A8, mTransparencyBitmapWidth, TITLEBAR_SHAPE_MASK_HEIGHT);
+        CAIRO_FORMAT_A8, mTransparencyBitmapWidth, radius);
     if (!surface) return;
 
     cairo_t* cr = cairo_create(surface);
 
     GtkWidgetState state;
     memset((void*)&state, 0, sizeof(state));
-    GdkRectangle rect = {0, 0, mTransparencyBitmapWidth,
-                         TITLEBAR_SHAPE_MASK_HEIGHT};
+    GdkRectangle rect = {0, 0, mTransparencyBitmapWidth, radius};
 
     moz_gtk_widget_paint(MOZ_GTK_HEADER_BAR, cr, &rect, &state, 0,
                          GTK_TEXT_DIR_NONE);
@@ -6771,13 +6405,11 @@
     cairo_surface_mark_dirty(surface);
     cairo_surface_flush(surface);
 
-    UpdateMaskBits(
-        mTransparencyBitmap, mTransparencyBitmapWidth,
-        TITLEBAR_SHAPE_MASK_HEIGHT,
-        nsIntRect(0, 0, mTransparencyBitmapWidth, TITLEBAR_SHAPE_MASK_HEIGHT),
-        cairo_image_surface_get_data(surface),
-        cairo_format_stride_for_width(CAIRO_FORMAT_A8,
-                                      mTransparencyBitmapWidth));
+    UpdateMaskBits(mTransparencyBitmap, mTransparencyBitmapWidth, radius,
+                   nsIntRect(0, 0, mTransparencyBitmapWidth, radius),
+                   cairo_image_surface_get_data(surface),
+                   cairo_format_stride_for_width(CAIRO_FORMAT_A8,
+                                                 mTransparencyBitmapWidth));
 
     cairo_surface_destroy(surface);
   }
@@ -6786,20 +6418,18 @@
     Display* xDisplay = GDK_WINDOW_XDISPLAY(mGdkWindow);
     Window xDrawable = GDK_WINDOW_XID(mGdkWindow);
 
-    Pixmap maskPixmap = XCreateBitmapFromData(
-        xDisplay, xDrawable, mTransparencyBitmap, mTransparencyBitmapWidth,
-        TITLEBAR_SHAPE_MASK_HEIGHT);
+    Pixmap maskPixmap =
+        XCreateBitmapFromData(xDisplay, xDrawable, mTransparencyBitmap,
+                              mTransparencyBitmapWidth, radius);
 
     XShapeCombineMask(xDisplay, xDrawable, ShapeBounding, 0, 0, maskPixmap,
                       ShapeSet);
 
-    if (mTransparencyBitmapHeight > TITLEBAR_SHAPE_MASK_HEIGHT) {
+    if (mTransparencyBitmapHeight > radius) {
       XRectangle rect = {0, 0, (unsigned short)mTransparencyBitmapWidth,
-                         (unsigned short)(mTransparencyBitmapHeight -
-                                          TITLEBAR_SHAPE_MASK_HEIGHT)};
-      XShapeCombineRectangles(xDisplay, xDrawable, ShapeBounding, 0,
-                              TITLEBAR_SHAPE_MASK_HEIGHT, &rect, 1, ShapeUnion,
-                              0);
+                         (unsigned short)(mTransparencyBitmapHeight - radius)};
+      XShapeCombineRectangles(xDisplay, xDrawable, ShapeBounding, 0, radius,
+                              &rect, 1, ShapeUnion, 0);
     }
 
     XFreePixmap(xDisplay, maskPixmap);
@@ -7064,10 +6694,6 @@
   // GetScreenBounds() is slow for the GTK port so we override and use
   // mBounds directly.
   LayoutDeviceIntRect bounds = mBounds;
-  if (!mIsTopLevel) {
-    bounds.MoveTo(WidgetToScreenOffset());
-  }
-
   DesktopIntRect deskBounds = RoundedToInt(bounds / GetDesktopToDeviceScale());
   nsCOMPtr<nsIScreen> screen;
   screenManager->ScreenForRect(deskBounds.x, deskBounds.y, deskBounds.width,
@@ -7605,19 +7231,6 @@
       cairo_restore(cr);
     }
   }
-
-  GList* children = gdk_window_get_children(aWindow);
-  GList* child = children;
-  while (child) {
-    GdkWindow* window = GDK_WINDOW(child->data);
-    gpointer windowWidget;
-    gdk_window_get_user_data(window, &windowWidget);
-    if (windowWidget == widget) {
-      draw_window_of_widget(widget, window, cr);
-    }
-    child = g_list_next(child);
-  }
-  g_list_free(children);
 }
 
 /* static */
@@ -8080,21 +7693,13 @@
   nscoord retx = 0;
   nscoord rety = 0;
 
-  GdkWindow* innerWindow = get_inner_gdk_window(gtk_widget_get_window(aWidget),
-                                                aX, aY, &retx, &rety);
-  RefPtr<nsWindow> innerMostWindow = get_window_for_gdk_window(innerWindow);
-
-  if (!innerMostWindow) {
-    innerMostWindow = window;
-  }
-
-  LOGDRAG("WindowDragMotionHandler nsWindow %p\n", (void*)innerMostWindow);
+  LOGDRAG("WindowDragMotionHandler nsWindow %p\n", (void*)window);
 
   LayoutDeviceIntPoint point = window->GdkPointToDevicePixels({retx, rety});
 
   RefPtr<nsDragService> dragService = nsDragService::GetInstance();
-  if (!dragService->ScheduleMotionEvent(innerMostWindow, aDragContext,
-                                        aDataOffer, point, aTime)) {
+  if (!dragService->ScheduleMotionEvent(window, aDragContext, aDataOffer, point,
+                                        aTime)) {
     return FALSE;
   }
   // We need to reply to drag_motion event on Wayland immediately,
@@ -8161,21 +7766,13 @@
   nscoord retx = 0;
   nscoord rety = 0;
 
-  GdkWindow* innerWindow = get_inner_gdk_window(gtk_widget_get_window(aWidget),
-                                                aX, aY, &retx, &rety);
-  RefPtr<nsWindow> innerMostWindow = get_window_for_gdk_window(innerWindow);
-
-  if (!innerMostWindow) {
-    innerMostWindow = window;
-  }
-
-  LOGDRAG("WindowDragDropHandler nsWindow %p\n", (void*)innerMostWindow);
+  LOGDRAG("WindowDragDropHandler nsWindow %p\n", (void*)window);
 
   LayoutDeviceIntPoint point = window->GdkPointToDevicePixels({retx, rety});
 
   RefPtr<nsDragService> dragService = nsDragService::GetInstance();
-  return dragService->ScheduleDropEvent(innerMostWindow, aDragContext,
-                                        aDataOffer, point, aTime);
+  return dragService->ScheduleDropEvent(window, aDragContext, aDataOffer, point,
+                                        aTime);
 }
 
 static gboolean drag_drop_event_cb(GtkWidget* aWidget,
@@ -8212,26 +7809,6 @@
   return NS_OK;
 }
 
-static GdkWindow* get_inner_gdk_window(GdkWindow* aWindow, gint x, gint y,
-                                       gint* retx, gint* rety) {
-  gint cx, cy, cw, ch;
-  GList* children = gdk_window_peek_children(aWindow);
-  for (GList* child = g_list_last(children); child;
-       child = g_list_previous(child)) {
-    auto* childWindow = (GdkWindow*)child->data;
-    if (get_window_for_gdk_window(childWindow)) {
-      gdk_window_get_geometry(childWindow, &cx, &cy, &cw, &ch);
-      if ((cx < x) && (x < (cx + cw)) && (cy < y) && (y < (cy + ch)) &&
-          gdk_window_is_visible(childWindow)) {
-        return get_inner_gdk_window(childWindow, x - cx, y - cy, retx, rety);
-      }
-    }
-  }
-  *retx = x;
-  *rety = y;
-  return aWindow;
-}
-
 static int is_parent_ungrab_enter(GdkEventCrossing* aEvent) {
   return (GDK_CROSSING_UNGRAB == aEvent->mode) &&
          ((GDK_NOTIFY_ANCESTOR == aEvent->detail) ||
@@ -8246,7 +7823,7 @@
 
 #ifdef ACCESSIBILITY
 void nsWindow::CreateRootAccessible() {
-  if (mIsTopLevel && !mRootAccessible) {
+  if (!mRootAccessible) {
     LOG("nsWindow:: Create Toplevel Accessibility\n");
     mRootAccessible = GetRootAccessible();
   }
@@ -9081,7 +8658,7 @@
       return false;
     }
 
-    // We can'y use shape masks on Mutter/X.org as we can't resize Firefox
+    // We can't use shape masks on Mutter/X.org as we can't resize Firefox
     // window there (Bug 1530252).
     const char* currentDesktop = getenv("XDG_CURRENT_DESKTOP");
     if (currentDesktop) {
@@ -9353,21 +8930,6 @@
   if (!window) {
     return false;
   }
-
-  // Get our toplevel nsWindow.
-  if (!window->mIsTopLevel) {
-    GtkWidget* widget = window->GetMozContainerWidget();
-    if (!widget) {
-      return false;
-    }
-
-    GtkWidget* toplevelWidget = gtk_widget_get_toplevel(widget);
-    window = get_window_for_gtk_widget(toplevelWidget);
-    if (!window) {
-      return false;
-    }
-  }
-
   return !window->mTitlebarBackdropState;
 }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/nsWindow.h firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/nsWindow.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/gtk/nsWindow.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/gtk/nsWindow.h	2021-10-20 19:28:51.000000000 +0000
@@ -112,8 +112,6 @@
 
   NS_INLINE_DECL_REFCOUNTING_INHERITED(nsWindow, nsBaseWidget)
 
-  void CommonCreate(nsIWidget* aParent, bool aListenForResizes);
-
   virtual nsresult DispatchEvent(mozilla::WidgetGUIEvent* aEvent,
                                  nsEventStatus& aStatus) override;
 
@@ -136,7 +134,6 @@
   mozilla::DesktopToLayoutDeviceScale GetDesktopToDeviceScale() override;
   mozilla::DesktopToLayoutDeviceScale GetDesktopToDeviceScaleByScreen()
       override;
-  virtual void SetParent(nsIWidget* aNewParent) override;
   virtual void SetModal(bool aModal) override;
   virtual bool IsVisible() const override;
   virtual void ConstrainPosition(bool aAllowSlop, int32_t* aX,
@@ -171,9 +168,6 @@
   virtual void CaptureRollupEvents(nsIRollupListener* aListener,
                                    bool aDoCapture) override;
   [[nodiscard]] virtual nsresult GetAttention(int32_t aCycleCount) override;
-  virtual nsresult SetWindowClipRegion(
-      const nsTArray<LayoutDeviceIntRect>& aRects,
-      bool aIntersectWithExisting) override;
   virtual bool HasPendingInputEvent() override;
 
   virtual bool PrepareForFullscreenTransition(nsISupports** aData) override;
@@ -295,15 +289,11 @@
   virtual void SetTransparencyMode(nsTransparencyMode aMode) override;
   virtual nsTransparencyMode GetTransparencyMode() override;
   virtual void SetWindowMouseTransparent(bool aIsTransparent) override;
-  virtual nsresult ConfigureChildren(
-      const nsTArray<Configuration>& aConfigurations) override;
   nsresult UpdateTranslucentWindowAlphaInternal(const nsIntRect& aRect,
                                                 uint8_t* aAlphas,
                                                 int32_t aStride);
   void UpdateTitlebarTransparencyBitmap();
 
-  virtual void ReparentNativeWidget(nsIWidget* aNewParent) override;
-
   virtual nsresult SynthesizeNativeMouseEvent(
       LayoutDeviceIntPoint aPoint, NativeMouseMessage aNativeMessage,
       mozilla::MouseButton aButton, nsIWidget::Modifiers aModifierFlags,
@@ -338,6 +328,7 @@
   virtual nsresult SetNonClientMargins(
       LayoutDeviceIntMargin& aMargins) override;
   void SetDrawsInTitlebar(bool aState) override;
+  mozilla::LayoutDeviceIntCoord GetTitlebarRadius();
   LayoutDeviceIntRect GetTitlebarRect();
   virtual void UpdateWindowDraggingRegion(
       const LayoutDeviceIntRegion& aRegion) override;
@@ -445,13 +436,8 @@
 #endif
   }
   nsCOMPtr<nsIWidget> mParent;
-  // Is this a toplevel window?
-  bool mIsTopLevel;
   // Has this widget been destroyed yet?
   bool mIsDestroyed;
-
-  // Should we send resize events on all resizes?
-  bool mListenForResizes;
   // Does WindowResized need to be called on listeners?
   bool mNeedsDispatchResized;
   // This flag tracks if we're hidden or shown.
@@ -495,7 +481,6 @@
 
   void WaylandStartVsync();
   void WaylandStopVsync();
-  void DestroyChildWindows();
   GtkWidget* GetToplevelWidget();
   nsWindow* GetContainerWindow();
   void SetUrgencyHint(GtkWidget* top_window, bool state);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/headless/HeadlessLookAndFeelGTK.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/headless/HeadlessLookAndFeelGTK.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/headless/HeadlessLookAndFeelGTK.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/headless/HeadlessLookAndFeelGTK.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -257,7 +257,6 @@
       break;
     case IntID::GTKCSDAvailable:
     case IntID::GTKCSDHideTitlebarByDefault:
-    case IntID::GTKCSDTransparentBackground:
       aResult = 0;
       break;
     case IntID::GTKCSDMinimizeButton:
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/headless/HeadlessWidget.h firefox-trunk-95.0~a1~hg20211020r596404/widget/headless/HeadlessWidget.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/headless/HeadlessWidget.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/headless/HeadlessWidget.h	2021-10-20 19:28:51.000000000 +0000
@@ -75,12 +75,6 @@
   virtual void Enable(bool aState) override;
   virtual bool IsEnabled() const override;
   virtual void SetFocus(Raise, mozilla::dom::CallerType aCallerType) override;
-  virtual nsresult ConfigureChildren(
-      const nsTArray<Configuration>& aConfigurations) override {
-    MOZ_ASSERT_UNREACHABLE(
-        "Headless widgets do not support configuring children.");
-    return NS_ERROR_FAILURE;
-  }
   virtual void Invalidate(const LayoutDeviceIntRect& aRect) override {
     // TODO: see if we need to do anything here.
   }
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/LookAndFeel.h firefox-trunk-95.0~a1~hg20211020r596404/widget/LookAndFeel.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/LookAndFeel.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/LookAndFeel.h	2021-10-20 19:28:50.000000000 +0000
@@ -254,12 +254,6 @@
 
     /*
      * A boolean value indicating whether client-side decorations should
-     * have transparent background.
-     */
-    GTKCSDTransparentBackground,
-
-    /*
-     * A boolean value indicating whether client-side decorations should
      * contain a minimize button.
      */
     GTKCSDMinimizeButton,
@@ -403,6 +397,9 @@
     // GTK text scale factor.
     TextScaleFactor,
 
+    // GTK titlebar radius.
+    TitlebarRadius,
+
     // Not an ID; used to define the range of valid IDs.  Must be last.
     End,
   };
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/nsBaseWidget.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/nsBaseWidget.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/nsBaseWidget.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/nsBaseWidget.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -97,10 +97,6 @@
 #  include "nsCocoaFeatures.h"
 #endif
 
-#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
-static nsRefPtrHashtable<nsVoidPtrHashKey, nsIWidget>* sPluginWidgetList;
-#endif
-
 nsIRollupListener* nsBaseWidget::gRollupListener = nullptr;
 
 using namespace mozilla::dom;
@@ -154,7 +150,6 @@
       mBorderStyle(eBorderStyle_none),
       mBounds(0, 0, 0, 0),
       mOriginalBounds(nullptr),
-      mClipRectCount(0),
       mSizeMode(nsSizeMode_Normal),
       mIsTiled(false),
       mPopupLevel(ePopupLevelTop),
@@ -175,11 +170,6 @@
   debug_RegisterPrefCallbacks();
 #endif
 
-#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
-  if (!sPluginWidgetList) {
-    sPluginWidgetList = new nsRefPtrHashtable<nsVoidPtrHashKey, nsIWidget>();
-  }
-#endif
   mShutdownObserver = new WidgetShutdownObserver(this);
 }
 
@@ -330,12 +320,6 @@
   DestroyCompositor();
   FreeLocalesChangedObserver();
   FreeShutdownObserver();
-#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK)
-  if (sPluginWidgetList) {
-    delete sPluginWidgetList;
-    sPluginWidgetList = nullptr;
-  }
-#endif
 }
 
 void nsBaseWidget::QuitIME() {
@@ -548,11 +532,6 @@
   if (parent) {
     parent->RemoveChild(this);
   }
-
-#if defined(XP_WIN)
-  // Allow our scroll capture container to be cleaned up, if we have one.
-  mScrollCaptureContainer = nullptr;
-#endif
 }
 
 //-------------------------------------------------------------------------
@@ -750,72 +729,6 @@
   return eTransparencyOpaque;
 }
 
-bool nsBaseWidget::IsWindowClipRegionEqual(
-    const nsTArray<LayoutDeviceIntRect>& aRects) {
-  return mClipRects && mClipRectCount == aRects.Length() &&
-         memcmp(mClipRects.get(), aRects.Elements(),
-                sizeof(LayoutDeviceIntRect) * mClipRectCount) == 0;
-}
-
-void nsBaseWidget::StoreWindowClipRegion(
-    const nsTArray<LayoutDeviceIntRect>& aRects) {
-  mClipRectCount = aRects.Length();
-  mClipRects = MakeUnique<LayoutDeviceIntRect[]>(mClipRectCount);
-  if (mClipRects) {
-    memcpy(mClipRects.get(), aRects.Elements(),
-           sizeof(LayoutDeviceIntRect) * mClipRectCount);
-  }
-}
-
-void nsBaseWidget::GetWindowClipRegion(nsTArray<LayoutDeviceIntRect>* aRects) {
-  if (mClipRects) {
-    aRects->AppendElements(mClipRects.get(), mClipRectCount);
-  } else {
-    aRects->AppendElement(
-        LayoutDeviceIntRect(0, 0, mBounds.Width(), mBounds.Height()));
-  }
-}
-
-const LayoutDeviceIntRegion nsBaseWidget::RegionFromArray(
-    const nsTArray<LayoutDeviceIntRect>& aRects) {
-  LayoutDeviceIntRegion region;
-  for (uint32_t i = 0; i < aRects.Length(); ++i) {
-    region.Or(region, aRects[i]);
-  }
-  return region;
-}
-
-void nsBaseWidget::ArrayFromRegion(const LayoutDeviceIntRegion& aRegion,
-                                   nsTArray<LayoutDeviceIntRect>& aRects) {
-  for (auto iter = aRegion.RectIter(); !iter.Done(); iter.Next()) {
-    aRects.AppendElement(iter.Get());
-  }
-}
-
-nsresult nsBaseWidget::SetWindowClipRegion(
-    const nsTArray<LayoutDeviceIntRect>& aRects, bool aIntersectWithExisting) {
-  if (!aIntersectWithExisting) {
-    StoreWindowClipRegion(aRects);
-  } else {
-    // get current rects
-    nsTArray<LayoutDeviceIntRect> currentRects;
-    GetWindowClipRegion(&currentRects);
-    // create region from them
-    LayoutDeviceIntRegion currentRegion = RegionFromArray(currentRects);
-    // create region from new rects
-    LayoutDeviceIntRegion newRegion = RegionFromArray(aRects);
-    // intersect regions
-    LayoutDeviceIntRegion intersection;
-    intersection.And(currentRegion, newRegion);
-    // create int rect array from intersection
-    nsTArray<LayoutDeviceIntRect> rects;
-    ArrayFromRegion(intersection, rects);
-    // store
-    StoreWindowClipRegion(rects);
-  }
-  return NS_OK;
-}
-
 /* virtual */
 void nsBaseWidget::PerformFullscreenTransition(FullscreenTransitionStage aStage,
                                                uint16_t aDuration,
@@ -2136,42 +2049,6 @@
   }
 }
 
-void nsBaseWidget::RegisterPluginWindowForRemoteUpdates() {
-#if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
-  MOZ_ASSERT_UNREACHABLE(
-      "nsBaseWidget::RegisterPluginWindowForRemoteUpdates "
-      "not implemented!");
-  return;
-#else
-  MOZ_ASSERT(NS_IsMainThread());
-  void* id = GetNativeData(NS_NATIVE_PLUGIN_ID);
-  if (!id) {
-    NS_WARNING("This is not a valid native widget!");
-    return;
-  }
-  MOZ_ASSERT(sPluginWidgetList);
-  sPluginWidgetList->InsertOrUpdate(id, RefPtr{this});
-#endif
-}
-
-void nsBaseWidget::UnregisterPluginWindowForRemoteUpdates() {
-#if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
-  MOZ_ASSERT_UNREACHABLE(
-      "nsBaseWidget::UnregisterPluginWindowForRemoteUpdates "
-      "not implemented!");
-  return;
-#else
-  MOZ_ASSERT(NS_IsMainThread());
-  void* id = GetNativeData(NS_NATIVE_PLUGIN_ID);
-  if (!id) {
-    NS_WARNING("This is not a valid native widget!");
-    return;
-  }
-  MOZ_ASSERT(sPluginWidgetList);
-  sPluginWidgetList->Remove(id);
-#endif
-}
-
 nsresult nsBaseWidget::AsyncEnableDragDrop(bool aEnable) {
   RefPtr<nsBaseWidget> kungFuDeathGrip = this;
   return NS_DispatchToCurrentThreadQueue(
@@ -2181,118 +2058,6 @@
       kAsyncDragDropTimeout, EventQueuePriority::Idle);
 }
 
-// static
-nsIWidget* nsIWidget::LookupRegisteredPluginWindow(uintptr_t aWindowID) {
-#if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
-  MOZ_ASSERT_UNREACHABLE(
-      "nsBaseWidget::LookupRegisteredPluginWindow "
-      "not implemented!");
-  return nullptr;
-#else
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(sPluginWidgetList);
-  return sPluginWidgetList->GetWeak((void*)aWindowID);
-#endif
-}
-
-// static
-void nsIWidget::UpdateRegisteredPluginWindowVisibility(
-    uintptr_t aOwnerWidget, nsTArray<uintptr_t>& aPluginIds) {
-#if !defined(XP_WIN) && !defined(MOZ_WIDGET_GTK)
-  MOZ_ASSERT_UNREACHABLE(
-      "nsBaseWidget::UpdateRegisteredPluginWindowVisibility"
-      " not implemented!");
-  return;
-#else
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(sPluginWidgetList);
-
-  // Our visible list is associated with a compositor which is associated with
-  // a specific top level window. We use the parent widget during iteration
-  // to skip the plugin widgets owned by other top level windows.
-  for (const auto& entry : *sPluginWidgetList) {
-    const void* windowId = entry.GetKey();
-    nsIWidget* widget = entry.GetWeak();
-
-    MOZ_ASSERT(windowId);
-    MOZ_ASSERT(widget);
-
-    if (!widget->Destroyed()) {
-      if ((uintptr_t)widget->GetParent() == aOwnerWidget) {
-        widget->Show(aPluginIds.Contains((uintptr_t)windowId));
-      }
-    }
-  }
-#endif
-}
-
-#if defined(XP_WIN)
-// static
-void nsIWidget::CaptureRegisteredPlugins(uintptr_t aOwnerWidget) {
-  MOZ_ASSERT(NS_IsMainThread());
-  MOZ_ASSERT(sPluginWidgetList);
-
-  // Our visible list is associated with a compositor which is associated with
-  // a specific top level window. We use the parent widget during iteration
-  // to skip the plugin widgets owned by other top level windows.
-  for (const auto& entry : *sPluginWidgetList) {
-    DebugOnly<const void*> windowId = entry.GetKey();
-    nsIWidget* widget = entry.GetWeak();
-
-    MOZ_ASSERT(windowId);
-    MOZ_ASSERT(widget);
-
-    if (!widget->Destroyed() && widget->IsVisible()) {
-      if ((uintptr_t)widget->GetParent() == aOwnerWidget) {
-        widget->UpdateScrollCapture();
-      }
-    }
-  }
-}
-
-uint64_t nsBaseWidget::CreateScrollCaptureContainer() {
-  mScrollCaptureContainer =
-      MakeAndAddRef<ImageContainer>(ImageContainer::ASYNCHRONOUS);
-  if (!mScrollCaptureContainer) {
-    NS_WARNING("Failed to create ImageContainer for widget image capture.");
-    return ImageContainer::sInvalidAsyncContainerId;
-  }
-
-  return mScrollCaptureContainer->GetAsyncContainerHandle().Value();
-}
-
-void nsBaseWidget::UpdateScrollCapture() {
-  // Don't capture if no container or no size.
-  if (!mScrollCaptureContainer || mBounds.IsEmpty()) {
-    return;
-  }
-
-  // If the derived class cannot take a snapshot, for example due to clipping,
-  // then it is responsible for creating a fallback. If null is returned, this
-  // means that we want to keep the existing snapshot.
-  RefPtr<gfx::SourceSurface> snapshot = CreateScrollSnapshot();
-  if (!snapshot) {
-    return;
-  }
-
-  ImageContainer::NonOwningImage holder(new SourceSurfaceImage(snapshot));
-
-  AutoTArray<ImageContainer::NonOwningImage, 1> imageList;
-  imageList.AppendElement(holder);
-
-  mScrollCaptureContainer->SetCurrentImages(imageList);
-}
-
-void nsBaseWidget::DefaultFillScrollCapture(DrawTarget* aSnapshotDrawTarget) {
-  gfx::IntSize dtSize = aSnapshotDrawTarget->GetSize();
-  aSnapshotDrawTarget->FillRect(
-      gfx::Rect(0, 0, dtSize.width, dtSize.height),
-      gfx::ColorPattern(gfx::ToDeviceColor(kScrollCaptureFillColor)),
-      gfx::DrawOptions(1.f, gfx::CompositionOp::OP_SOURCE));
-  aSnapshotDrawTarget->Flush();
-}
-#endif
-
 const IMENotificationRequests& nsIWidget::IMENotificationRequestsRef() {
   TextEventDispatcher* dispatcher = GetTextEventDispatcher();
   return dispatcher->IMENotificationRequestsRef();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/nsBaseWidget.h firefox-trunk-95.0~a1~hg20211020r596404/widget/nsBaseWidget.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/nsBaseWidget.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/nsBaseWidget.h	2021-10-20 19:28:51.000000000 +0000
@@ -31,13 +31,6 @@
 
 #include <algorithm>
 
-#if defined(XP_WIN)
-// Scroll capture constants
-const uint32_t kScrollCaptureFillColor = 0xFFa0a0a0;  // gray
-const mozilla::gfx::SurfaceFormat kScrollCaptureFormat =
-    mozilla::gfx::SurfaceFormat::X8R8G8B8_UINT32;
-#endif
-
 class nsIContent;
 class gfxContext;
 
@@ -201,7 +194,6 @@
   }
   void SetTransparencyMode(nsTransparencyMode aMode) override;
   nsTransparencyMode GetTransparencyMode() override;
-  void GetWindowClipRegion(nsTArray<LayoutDeviceIntRect>* aRects) override;
   void SetWindowShadowStyle(mozilla::StyleWindowShadow aStyle) override {}
   void SetShowsToolbarButton(bool aShow) override {}
   void SetSupportsNativeFullscreen(bool aSupportsNativeFullscreen) override {}
@@ -242,8 +234,6 @@
   void SetModal(bool aModal) override {}
   uint32_t GetMaxTouchPoints() const override;
   void SetWindowClass(const nsAString& xulWinType) override {}
-  nsresult SetWindowClipRegion(const nsTArray<LayoutDeviceIntRect>& aRects,
-                               bool aIntersectWithExisting) override;
   // Return whether this widget interprets parameters to Move and Resize APIs
   // as "desktop pixels" rather than "device pixels", and therefore
   // applies its GetDefaultScale() value to them before using them as mBounds
@@ -338,10 +328,6 @@
   void NotifySizeMoveDone();
   void NotifyWindowMoved(int32_t aX, int32_t aY);
 
-  // Register plugin windows for remote updates from the compositor
-  void RegisterPluginWindowForRemoteUpdates() override;
-  void UnregisterPluginWindowForRemoteUpdates() override;
-
   void SetNativeData(uint32_t aDataType, uintptr_t aVal) override {}
 
   // Should be called by derived implementations to notify on system color and
@@ -416,10 +402,6 @@
 
   void QuitIME();
 
-#if defined(XP_WIN)
-  uint64_t CreateScrollCaptureContainer() override;
-#endif
-
   // These functions should be called at the start and end of a "live" widget
   // resize (i.e. when the window contents are repainting during the resize,
   // such as when the user drags a window border). It will suppress the
@@ -484,11 +466,6 @@
       mozilla::WidgetInputEvent* aEvent,
       const mozilla::layers::APZEventResult& aApzResult);
 
-  const LayoutDeviceIntRegion RegionFromArray(
-      const nsTArray<LayoutDeviceIntRect>& aRects);
-  void ArrayFromRegion(const LayoutDeviceIntRegion& aRegion,
-                       nsTArray<LayoutDeviceIntRect>& aRects);
-
   nsresult SynthesizeNativeKeyEvent(int32_t aNativeKeyboardLayout,
                                     int32_t aNativeKeyCode,
                                     uint32_t aModifierFlags,
@@ -577,13 +554,6 @@
   void* GetPseudoIMEContext();
 
  protected:
-  // Utility to check if an array of clip rects is equal to our
-  // internally stored clip rect array mClipRects.
-  bool IsWindowClipRegionEqual(const nsTArray<LayoutDeviceIntRect>& aRects);
-
-  // Stores the clip rectangles in aRects into mClipRects.
-  void StoreWindowClipRegion(const nsTArray<LayoutDeviceIntRect>& aRects);
-
   virtual already_AddRefed<nsIWidget> AllocateChildPopupWidget() {
     return nsIWidget::CreateChildWindow();
   }
@@ -669,27 +639,6 @@
   void DispatchPanGestureInput(mozilla::PanGestureInput& aInput);
   void DispatchPinchGestureInput(mozilla::PinchGestureInput& aInput);
 
-#if defined(XP_WIN)
-  void UpdateScrollCapture() override;
-
-  /**
-   * To be overridden by derived classes to return a snapshot that can be used
-   * during scrolling. Returning null means we won't update the container.
-   * @return an already AddRefed SourceSurface containing the snapshot
-   */
-  virtual already_AddRefed<SourceSurface> CreateScrollSnapshot() {
-    return nullptr;
-  };
-
-  /**
-   * Used by derived classes to create a fallback scroll image.
-   * @param aSnapshotDrawTarget DrawTarget to fill with fallback image.
-   */
-  void DefaultFillScrollCapture(DrawTarget* aSnapshotDrawTarget);
-
-  RefPtr<ImageContainer> mScrollCaptureContainer;
-#endif
-
  protected:
   // Returns whether compositing should use an external surface size.
   virtual bool UseExternalCompositingSurface() const { return false; }
@@ -732,9 +681,6 @@
   nsBorderStyle mBorderStyle;
   LayoutDeviceIntRect mBounds;
   LayoutDeviceIntRect* mOriginalBounds;
-  // When this pointer is null, the widget is not clipped
-  mozilla::UniquePtr<LayoutDeviceIntRect[]> mClipRects;
-  uint32_t mClipRectCount;
   nsSizeMode mSizeMode;
   bool mIsTiled;
   nsPopupLevel mPopupLevel;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/nsIGfxInfo.idl firefox-trunk-95.0~a1~hg20211020r596404/widget/nsIGfxInfo.idl
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/nsIGfxInfo.idl	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/nsIGfxInfo.idl	2021-10-20 19:28:51.000000000 +0000
@@ -36,7 +36,6 @@
   readonly attribute AString ContentBackend;
   readonly attribute boolean WebRenderEnabled;
   readonly attribute boolean isHeadless;
-  readonly attribute boolean UsesTiling;
   readonly attribute unsigned long TargetFrameRate;
 
   // XXX: Switch to a list of devices, rather than explicitly numbering them.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/nsIWidget.h firefox-trunk-95.0~a1~hg20211020r596404/widget/nsIWidget.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/nsIWidget.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/nsIWidget.h	2021-10-20 19:28:51.000000000 +0000
@@ -127,13 +127,10 @@
 #define NS_NATIVE_REGION 5
 #define NS_NATIVE_OFFSETX 6
 #define NS_NATIVE_OFFSETY 7
-#define NS_NATIVE_PLUGIN_PORT 8
 #define NS_NATIVE_SCREEN 9
 // The toplevel GtkWidget containing this nsIWidget:
 #define NS_NATIVE_SHELLWIDGET 10
 #define NS_NATIVE_OPENGL_CONTEXT 12
-// See RegisterPluginWindowForRemoteUpdates
-#define NS_NATIVE_PLUGIN_ID 13
 // This is available only with GetNativeData() in parent process.  Anybody
 // shouldn't access this pointer as a valid pointer since the result may be
 // special value like NS_ONLY_ONE_NATIVE_IME_CONTEXT.  So, the result is just
@@ -142,10 +139,6 @@
 // XP code should use nsIWidget::GetNativeIMEContext() instead of using this.
 #define NS_RAW_NATIVE_IME_CONTEXT 14
 #define NS_NATIVE_WINDOW_WEBRTC_DEVICE_ID 15
-#ifdef XP_MACOSX
-#  define NS_NATIVE_PLUGIN_PORT_QD 100
-#  define NS_NATIVE_PLUGIN_PORT_CG 101
-#endif
 #ifdef XP_WIN
 #  define NS_NATIVE_TSF_THREAD_MGR 100
 #  define NS_NATIVE_TSF_CATEGORY_MGR 101
@@ -153,8 +146,6 @@
 #  define NS_NATIVE_ICOREWINDOW 103  // winrt specific
 #endif
 #if defined(MOZ_WIDGET_GTK)
-// set/get nsPluginNativeWindowGtk, e10s specific
-#  define NS_NATIVE_PLUGIN_OBJECT_PTR 104
 #  define NS_NATIVE_EGL_WINDOW 106
 #endif
 #ifdef MOZ_WIDGET_ANDROID
@@ -1026,15 +1017,6 @@
   nsWindowType WindowType() { return mWindowType; }
 
   /**
-   * Determines if this widget is one of the three types of plugin widgets.
-   */
-  bool IsPlugin() {
-    return mWindowType == eWindowType_plugin ||
-           mWindowType == eWindowType_plugin_ipc_chrome ||
-           mWindowType == eWindowType_plugin_ipc_content;
-  }
-
-  /**
    * Set the transparency mode of the top-level window containing this widget.
    * So, e.g., if you call this on the widget for an IFRAME, the top level
    * browser window containing the IFRAME actually gets set. Be careful.
@@ -1060,94 +1042,6 @@
   virtual nsTransparencyMode GetTransparencyMode() = 0;
 
   /**
-   * This represents a command to set the bounds and clip region of
-   * a child widget.
-   */
-  struct Configuration {
-    nsCOMPtr<nsIWidget> mChild;
-    uintptr_t mWindowID;  // e10s specific, the unique plugin port id
-    bool mVisible;        // e10s specific, widget visibility
-    LayoutDeviceIntRect mBounds;
-    CopyableTArray<LayoutDeviceIntRect> mClipRegion;
-  };
-
-  /**
-   * Sets the clip region of each mChild (which must actually be a child
-   * of this widget) to the union of the pixel rects given in
-   * mClipRegion, all relative to the top-left of the child
-   * widget. Clip regions are not implemented on all platforms and only
-   * need to actually work for children that are plugins.
-   *
-   * Also sets the bounds of each child to mBounds.
-   *
-   * This will invalidate areas of the children that have changed, but
-   * does not need to invalidate any part of this widget.
-   *
-   * Children should be moved in the order given; the array is
-   * sorted so to minimize unnecessary invalidation if children are
-   * moved in that order.
-   */
-  virtual nsresult ConfigureChildren(
-      const nsTArray<Configuration>& aConfigurations) = 0;
-  virtual nsresult SetWindowClipRegion(
-      const nsTArray<LayoutDeviceIntRect>& aRects,
-      bool aIntersectWithExisting) = 0;
-
-  /**
-   * Appends to aRects the rectangles constituting this widget's clip
-   * region. If this widget is not clipped, appends a single rectangle
-   * (0, 0, bounds.width, bounds.height).
-   */
-  virtual void GetWindowClipRegion(nsTArray<LayoutDeviceIntRect>* aRects) = 0;
-
-  /**
-   * Register or unregister native plugin widgets which receive Configuration
-   * data from the content process via the compositor.
-   *
-   * Lookups are used by the main thread via the compositor to lookup widgets
-   * based on a unique window id. On Windows and Linux this is the
-   * NS_NATIVE_PLUGIN_PORT (hwnd/XID). This tracking maintains a reference to
-   * widgets held. Consumers are responsible for removing widgets from this
-   * list.
-   */
-  virtual void RegisterPluginWindowForRemoteUpdates() = 0;
-  virtual void UnregisterPluginWindowForRemoteUpdates() = 0;
-  static nsIWidget* LookupRegisteredPluginWindow(uintptr_t aWindowID);
-
-  /**
-   * Iterates across the list of registered plugin widgets and updates thier
-   * visibility based on which plugins are included in the 'visible' list.
-   *
-   * The compositor knows little about tabs, but it does know which plugin
-   * widgets are currently included in the visible layer tree. It calls this
-   * helper to hide widgets it knows nothing about.
-   */
-  static void UpdateRegisteredPluginWindowVisibility(
-      uintptr_t aOwnerWidget, nsTArray<uintptr_t>& aPluginIds);
-
-#if defined(XP_WIN)
-  /**
-   * Iterates over the list of registered plugins and for any that are owned
-   * by aOwnerWidget and visible it takes a snapshot.
-   *
-   * @param aOwnerWidget only captures visible widgets owned by this
-   */
-  static void CaptureRegisteredPlugins(uintptr_t aOwnerWidget);
-
-  /**
-   * Take a scroll capture for this widget if possible.
-   */
-  virtual void UpdateScrollCapture() = 0;
-
-  /**
-   * Creates an async ImageContainer to hold scroll capture images that can be
-   * used if the plugin is hidden during scroll.
-   * @return the async container ID of the created ImageContainer.
-   */
-  virtual uint64_t CreateScrollCaptureContainer() = 0;
-#endif
-
-  /**
    * Set the shadow style of the window.
    *
    * Ignored on child widgets and on non-Mac platforms.
@@ -1174,7 +1068,7 @@
    * Set the preferred color-scheme for the widget.
    * Ignored on non-Mac platforms.
    */
-  virtual void SetColorScheme(mozilla::ColorScheme) {}
+  virtual void SetColorScheme(const mozilla::Maybe<mozilla::ColorScheme>&) {}
 
   /**
    * Set whether the window should ignore mouse events or not.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/nsWidgetInitData.h firefox-trunk-95.0~a1~hg20211020r596404/widget/nsWidgetInitData.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/nsWidgetInitData.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/nsWidgetInitData.h	2021-10-20 19:28:51.000000000 +0000
@@ -21,11 +21,6 @@
   eWindowType_child,      // child windows (contained inside a window on the
                           // desktop (has no border))
   eWindowType_invisible,  // windows that are invisible or offscreen
-  eWindowType_plugin,     // plugin window
-  eWindowType_plugin_ipc_chrome,   // chrome side native widget for plugins
-                                   // (e10s)
-  eWindowType_plugin_ipc_content,  // content side puppet widget for plugins
-                                   // (e10s)
 };
 
 /**
@@ -102,7 +97,6 @@
         clipChildren(false),
         clipSiblings(false),
         mDropShadow(false),
-        mListenForResizes(false),
         mRTL(false),
         mNoAutoHide(false),
         mIsDragPopup(false),
@@ -125,7 +119,6 @@
   uint32_t mScreenId;
   // when painting exclude area occupied by child windows and sibling windows
   bool clipChildren, clipSiblings, mDropShadow;
-  bool mListenForResizes;
   bool mRTL;
   bool mNoAutoHide;   // true for noautohide panels
   bool mIsDragPopup;  // true for drag feedback panels
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/nsXPLookAndFeel.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/nsXPLookAndFeel.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/nsXPLookAndFeel.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/nsXPLookAndFeel.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -161,7 +161,6 @@
     "ui.contextMenuOffsetHorizontal",
     "ui.GtkCSDAvailable",
     "ui.GtkCSDHideTitlebarByDefault",
-    "ui.GtkCSDTransparentBackground",
     "ui.GtkCSDMinimizeButton",
     "ui.GtkCSDMaximizeButton",
     "ui.GtkCSDCloseButton",
@@ -183,12 +182,15 @@
 
 // This array MUST be kept in the same order as the float id list in
 // LookAndFeel.h
+// clang-format off
 static const char sFloatPrefs[][37] = {
     "ui.IMEUnderlineRelativeSize",
     "ui.SpellCheckerUnderlineRelativeSize",
     "ui.caretAspectRatio",
     "ui.textScaleFactor",
+    "ui.titlebarRadius",
 };
+// clang-format on
 
 static_assert(ArrayLength(sFloatPrefs) == size_t(LookAndFeel::FloatID::End),
               "Should have a pref for each float value");
@@ -430,6 +432,7 @@
     {"browser.display.windows.native_menus"_ns},
     {"browser.proton.enabled"_ns},
     {"browser.proton.places-tooltip.enabled"_ns},
+    {"layout.css.prefers-color-scheme.content-override"_ns},
     // This affects not only the media query, but also the native theme, so we
     // need to re-layout.
     {"browser.theme.toolbar-theme"_ns, widget::ThemeChangeKind::AllBits},
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/PuppetWidget.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/PuppetWidget.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/PuppetWidget.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/PuppetWidget.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -228,26 +228,6 @@
   }
 }
 
-nsresult PuppetWidget::ConfigureChildren(
-    const nsTArray<Configuration>& aConfigurations) {
-  for (uint32_t i = 0; i < aConfigurations.Length(); ++i) {
-    const Configuration& configuration = aConfigurations[i];
-    PuppetWidget* w = static_cast<PuppetWidget*>(configuration.mChild.get());
-    NS_ASSERTION(w->GetParent() == this, "Configured widget is not a child");
-    w->SetWindowClipRegion(configuration.mClipRegion, true);
-    LayoutDeviceIntRect bounds = w->GetBounds();
-    if (bounds.Size() != configuration.mBounds.Size()) {
-      w->Resize(configuration.mBounds.X(), configuration.mBounds.Y(),
-                configuration.mBounds.Width(), configuration.mBounds.Height(),
-                true);
-    } else if (bounds.TopLeft() != configuration.mBounds.TopLeft()) {
-      w->Move(configuration.mBounds.X(), configuration.mBounds.Y());
-    }
-    w->SetWindowClipRegion(configuration.mClipRegion, false);
-  }
-  return NS_OK;
-}
-
 void PuppetWidget::SetFocus(Raise aRaise, CallerType aCallerType) {
   if (aRaise == Raise::Yes && mBrowserChild) {
     mBrowserChild->SendRequestFocus(true, aCallerType);
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/PuppetWidget.h firefox-trunk-95.0~a1~hg20211020r596404/widget/PuppetWidget.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/PuppetWidget.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/PuppetWidget.h	2021-10-20 19:28:51.000000000 +0000
@@ -117,9 +117,6 @@
 
   virtual void SetFocus(Raise, mozilla::dom::CallerType aCallerType) override;
 
-  virtual nsresult ConfigureChildren(
-      const nsTArray<Configuration>& aConfigurations) override;
-
   virtual void Invalidate(const LayoutDeviceIntRect& aRect) override;
 
   // PuppetWidgets don't have native data, as they're purely nonnative.
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/tests/gtest/MockWinWidget.h firefox-trunk-95.0~a1~hg20211020r596404/widget/tests/gtest/MockWinWidget.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/tests/gtest/MockWinWidget.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/tests/gtest/MockWinWidget.h	2021-10-20 19:28:51.000000000 +0000
@@ -53,10 +53,6 @@
   virtual void Enable(bool aState) override {}
   virtual bool IsEnabled() const override { return true; }
   virtual void SetFocus(Raise, mozilla::dom::CallerType aCallerType) override {}
-  virtual nsresult ConfigureChildren(
-      const nsTArray<Configuration>& aConfigurations) override {
-    return NS_OK;
-  }
   virtual void Invalidate(const LayoutDeviceIntRect& aRect) override {}
   virtual nsresult SetTitle(const nsAString& title) override { return NS_OK; }
   virtual LayoutDeviceIntPoint WidgetToScreenOffset() override {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/uikit/nsWindow.h firefox-trunk-95.0~a1~hg20211020r596404/widget/uikit/nsWindow.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/uikit/nsWindow.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/uikit/nsWindow.h	2021-10-20 19:28:51.000000000 +0000
@@ -63,7 +63,6 @@
   virtual nsresult SetTitle(const nsAString& aTitle) override { return NS_OK; }
 
   virtual void Invalidate(const LayoutDeviceIntRect& aRect) override;
-  virtual nsresult ConfigureChildren(const nsTArray<Configuration>& aConfigurations) override;
   virtual nsresult DispatchEvent(mozilla::WidgetGUIEvent* aEvent, nsEventStatus& aStatus) override;
 
   void WillPaintWindow();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/uikit/nsWindow.mm firefox-trunk-95.0~a1~hg20211020r596404/widget/uikit/nsWindow.mm
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/uikit/nsWindow.mm	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/uikit/nsWindow.mm	2021-10-20 19:28:51.000000000 +0000
@@ -491,16 +491,6 @@
   return NS_OK;
 }
 
-nsresult nsWindow::ConfigureChildren(const nsTArray<nsIWidget::Configuration>& config) {
-  for (uint32_t i = 0; i < config.Length(); ++i) {
-    nsWindow* childWin = (nsWindow*)config[i].mChild.get();
-    childWin->Resize(config[i].mBounds.x, config[i].mBounds.y, config[i].mBounds.width,
-                     config[i].mBounds.height, false);
-  }
-
-  return NS_OK;
-}
-
 void nsWindow::Show(bool aState) {
   if (aState != mVisible) {
     mNativeView.hidden = aState ? NO : YES;
@@ -711,10 +701,6 @@
       retVal = 0;
       break;
 
-    case NS_NATIVE_PLUGIN_PORT:
-      // not implemented
-      break;
-
     case NS_RAW_NATIVE_IME_CONTEXT:
       retVal = GetPseudoIMEContext();
       if (retVal) {
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/windows/nsWindow.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/windows/nsWindow.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/windows/nsWindow.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/windows/nsWindow.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -942,14 +942,6 @@
   } else {
     className = GetWindowClass();
   }
-  // Plugins are created in the disabled state so that they can't
-  // steal focus away from our main window.  This is especially
-  // important if the plugin has loaded in a background tab.
-  if (aInitData->mWindowType == eWindowType_plugin ||
-      aInitData->mWindowType == eWindowType_plugin_ipc_chrome ||
-      aInitData->mWindowType == eWindowType_plugin_ipc_content) {
-    style |= WS_DISABLED;
-  }
 
   if (aInitData->mWindowType == eWindowType_toplevel && !aParent &&
       !sFirstTopLevelWindowCreated) {
@@ -1036,7 +1028,7 @@
                    SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
   }
 
-  if (!IsPlugin() && mWindowType != eWindowType_invisible &&
+  if (mWindowType != eWindowType_invisible &&
       MouseScrollHandler::Device::IsFakeScrollableWindowNeeded()) {
     // Ugly Thinkpad Driver Hack (Bugs 507222 and 594977)
     //
@@ -1249,9 +1241,6 @@
   DWORD style;
 
   switch (mWindowType) {
-    case eWindowType_plugin:
-    case eWindowType_plugin_ipc_chrome:
-    case eWindowType_plugin_ipc_content:
     case eWindowType_child:
       style = WS_OVERLAPPED;
       break;
@@ -1342,9 +1331,6 @@
 // Return nsWindow extended styles
 DWORD nsWindow::WindowExStyle() {
   switch (mWindowType) {
-    case eWindowType_plugin:
-    case eWindowType_plugin_ipc_chrome:
-    case eWindowType_plugin_ipc_content:
     case eWindowType_child:
       return 0;
 
@@ -1547,103 +1533,6 @@
   return windows;
 }
 
-static already_AddRefed<SourceSurface> CreateSourceSurfaceForGfxSurface(
-    gfxASurface* aSurface) {
-  MOZ_ASSERT(aSurface);
-  return Factory::CreateSourceSurfaceForCairoSurface(
-      aSurface->CairoSurface(), aSurface->GetSize(),
-      aSurface->GetSurfaceFormat());
-}
-
-nsWindow::ScrollSnapshot* nsWindow::EnsureSnapshotSurface(
-    ScrollSnapshot& aSnapshotData, const mozilla::gfx::IntSize& aSize) {
-  // If the surface doesn't exist or is the wrong size then create new one.
-  if (!aSnapshotData.surface || aSnapshotData.surface->GetSize() != aSize) {
-    aSnapshotData.surface = new gfxWindowsSurface(aSize, kScrollCaptureFormat);
-    aSnapshotData.surfaceHasSnapshot = false;
-  }
-
-  return &aSnapshotData;
-}
-
-already_AddRefed<SourceSurface> nsWindow::CreateScrollSnapshot() {
-  RECT clip = {0};
-  int rgnType = ::GetWindowRgnBox(mWnd, &clip);
-  if (rgnType == RGN_ERROR) {
-    // We failed to get the clip assume that we need a full fallback.
-    clip.left = 0;
-    clip.top = 0;
-    clip.right = mBounds.Width();
-    clip.bottom = mBounds.Height();
-    return GetFallbackScrollSnapshot(clip);
-  }
-
-  // Check that the window is in a position to snapshot. We don't check for
-  // clipped width as that doesn't currently matter for APZ scrolling.
-  if (clip.top || clip.bottom != mBounds.Height()) {
-    return GetFallbackScrollSnapshot(clip);
-  }
-
-  HDC windowDC = ::GetDC(mWnd);
-  if (!windowDC) {
-    return GetFallbackScrollSnapshot(clip);
-  }
-  auto releaseDC = MakeScopeExit([&] { ::ReleaseDC(mWnd, windowDC); });
-
-  gfx::IntSize snapshotSize(mBounds.Width(), mBounds.Height());
-  ScrollSnapshot* snapshot;
-  if (clip.left || clip.right != mBounds.Width()) {
-    // Can't do a full snapshot, so use the partial snapshot.
-    snapshot = EnsureSnapshotSurface(mPartialSnapshot, snapshotSize);
-  } else {
-    snapshot = EnsureSnapshotSurface(mFullSnapshot, snapshotSize);
-  }
-
-  // Note that we know that the clip is full height.
-  if (!::BitBlt(snapshot->surface->GetDC(), clip.left, 0,
-                clip.right - clip.left, clip.bottom, windowDC, clip.left, 0,
-                SRCCOPY)) {
-    return GetFallbackScrollSnapshot(clip);
-  }
-  ::GdiFlush();
-  snapshot->surface->Flush();
-  snapshot->surfaceHasSnapshot = true;
-  snapshot->clip = clip;
-  mCurrentSnapshot = snapshot;
-
-  return CreateSourceSurfaceForGfxSurface(mCurrentSnapshot->surface);
-}
-
-already_AddRefed<SourceSurface> nsWindow::GetFallbackScrollSnapshot(
-    const RECT& aRequiredClip) {
-  gfx::IntSize snapshotSize(mBounds.Width(), mBounds.Height());
-
-  // If the current snapshot is the correct size and covers the required clip,
-  // just keep that by returning null.
-  // Note: we know the clip is always full height.
-  if (mCurrentSnapshot &&
-      mCurrentSnapshot->surface->GetSize() == snapshotSize &&
-      mCurrentSnapshot->clip.left <= aRequiredClip.left &&
-      mCurrentSnapshot->clip.right >= aRequiredClip.right) {
-    return nullptr;
-  }
-
-  // Otherwise we'll use the full snapshot, making sure it is big enough first.
-  mCurrentSnapshot = EnsureSnapshotSurface(mFullSnapshot, snapshotSize);
-
-  // If there is no snapshot, create a default.
-  if (!mCurrentSnapshot->surfaceHasSnapshot) {
-    gfx::SurfaceFormat format = mCurrentSnapshot->surface->GetSurfaceFormat();
-    RefPtr<DrawTarget> dt = Factory::CreateDrawTargetForCairoSurface(
-        mCurrentSnapshot->surface->CairoSurface(),
-        mCurrentSnapshot->surface->GetSize(), &format);
-
-    DefaultFillScrollCapture(dt);
-  }
-
-  return CreateSourceSurfaceForGfxSurface(mCurrentSnapshot->surface);
-}
-
 /**************************************************************
  *
  * SECTION: nsIWidget::Show
@@ -2075,15 +1964,6 @@
       ClearThemeRegion();
 
       UINT flags = SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOSIZE;
-      // Workaround SetWindowPos bug with D3D9. If our window has a clip
-      // region, some drivers or OSes may incorrectly copy into the clipped-out
-      // area.
-      if (IsPlugin() && !mWindowRenderer && mClipRects &&
-          (mClipRectCount != 1 ||
-           !mClipRects[0].IsEqualInterior(
-               LayoutDeviceIntRect(0, 0, mBounds.Width(), mBounds.Height())))) {
-        flags |= SWP_NOCOPYBITS;
-      }
       double oldScale = mDefaultScale;
       mResizeState = IN_SIZEMOVE;
       VERIFY(::SetWindowPos(mWnd, nullptr, x, y, 0, 0, flags));
@@ -3334,22 +3214,9 @@
   // all values must be set to -1 to get a full sheet of glass.
   MARGINS margins = {-1, -1, -1, -1};
   if (!aOpaqueRegion.IsEmpty()) {
-    LayoutDeviceIntRect pluginBounds;
-    for (nsIWidget* child = GetFirstChild(); child;
-         child = child->GetNextSibling()) {
-      if (child->IsPlugin()) {
-        // Collect the bounds of all plugins for GetLargestRectangle.
-        LayoutDeviceIntRect childBounds = child->GetBounds();
-        pluginBounds.UnionRect(pluginBounds, childBounds);
-      }
-    }
-
     LayoutDeviceIntRect clientBounds = GetClientBounds();
-
-    // Find the largest rectangle and use that to calculate the inset. Our top
-    // priority is to include the bounds of all plugins.
-    LayoutDeviceIntRect largest =
-        aOpaqueRegion.GetLargestRectangle(pluginBounds);
+    // Find the largest rectangle and use that to calculate the inset.
+    LayoutDeviceIntRect largest = aOpaqueRegion.GetLargestRectangle();
     margins.cxLeftWidth = largest.X();
     margins.cxRightWidth = clientBounds.Width() - largest.XMost();
     margins.cyBottomHeight = clientBounds.Height() - largest.YMost();
@@ -3773,8 +3640,6 @@
           mIsRTL ? WS_EX_LAYOUTRTL : 0, GetWindowClass(), L"", WS_CHILD,
           CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, mWnd,
           nullptr, nsToolkit::mDllInstance, nullptr);
-    case NS_NATIVE_PLUGIN_ID:
-    case NS_NATIVE_PLUGIN_PORT:
     case NS_NATIVE_WIDGET:
     case NS_NATIVE_WINDOW:
     case NS_NATIVE_WINDOW_WEBRTC_DEVICE_ID:
@@ -3811,7 +3676,6 @@
     case NS_NATIVE_GRAPHIC:
     case NS_NATIVE_WIDGET:
     case NS_NATIVE_WINDOW:
-    case NS_NATIVE_PLUGIN_PORT:
       break;
     default:
       break;
@@ -4487,7 +4351,8 @@
 bool nsWindow::DispatchMouseEvent(EventMessage aEventMessage, WPARAM wParam,
                                   LPARAM lParam, bool aIsContextMenuKey,
                                   int16_t aButton, uint16_t aInputSource,
-                                  WinPointerInfo* aPointerInfo) {
+                                  WinPointerInfo* aPointerInfo,
+                                  bool aIgnoreAPZ) {
   bool result = false;
 
   UserActivity();
@@ -4511,7 +4376,7 @@
     sLastMouseMovePoint.y = mpScreen.y;
   }
 
-  if (WinUtils::GetIsMouseFromTouch(aEventMessage)) {
+  if (!aIgnoreAPZ && WinUtils::GetIsMouseFromTouch(aEventMessage)) {
     if (mTouchWindow) {
       // If mTouchWindow is true, then we must have APZ enabled and be
       // feeding it raw touch events. In that case we only want to
@@ -5950,7 +5815,7 @@
       if (IsWindowButton(wParam) && mCustomNonClient && !mWindowButtonsRect) {
         DispatchMouseEvent(eMouseDown, wParamFromGlobalMouseState(),
                            lParamToClient(lParam), false, MouseButton::ePrimary,
-                           MOUSE_INPUT_SOURCE());
+                           MOUSE_INPUT_SOURCE(), nullptr, true);
         DispatchPendingEvents();
         result = true;
       }
@@ -6193,7 +6058,7 @@
       break;
 
     case WM_GESTURENOTIFY: {
-      if (mWindowType != eWindowType_invisible && !IsPlugin()) {
+      if (mWindowType != eWindowType_invisible) {
         // A GestureNotify event is dispatched to decide which single-finger
         // panning direction should be active (including none) and if pan
         // feedback should be displayed. Java and plugin windows can make their
@@ -7317,113 +7182,6 @@
   return true;  // Handled
 }
 
-nsresult nsWindow::ConfigureChildren(
-    const nsTArray<Configuration>& aConfigurations) {
-  // If this is a remotely updated widget we receive clipping, position, and
-  // size information from a source other than our owner. Don't let our parent
-  // update this information.
-  if (mWindowType == eWindowType_plugin_ipc_chrome) {
-    return NS_OK;
-  }
-
-  // XXXroc we could use BeginDeferWindowPos/DeferWindowPos/EndDeferWindowPos
-  // here, if that helps in some situations. So far I haven't seen a
-  // need.
-  for (uint32_t i = 0; i < aConfigurations.Length(); ++i) {
-    const Configuration& configuration = aConfigurations[i];
-    nsWindow* w = static_cast<nsWindow*>(configuration.mChild.get());
-    NS_ASSERTION(w->GetParent() == this, "Configured widget is not a child");
-    nsresult rv = w->SetWindowClipRegion(configuration.mClipRegion, true);
-    NS_ENSURE_SUCCESS(rv, rv);
-    LayoutDeviceIntRect bounds = w->GetBounds();
-    if (bounds.Size() != configuration.mBounds.Size()) {
-      w->Resize(configuration.mBounds.X(), configuration.mBounds.Y(),
-                configuration.mBounds.Width(), configuration.mBounds.Height(),
-                true);
-    } else if (bounds.TopLeft() != configuration.mBounds.TopLeft()) {
-      w->Move(configuration.mBounds.X(), configuration.mBounds.Y());
-
-      if (gfxWindowsPlatform::GetPlatform()->IsDirect2DBackend() ||
-          GetWindowRenderer()->GetBackendType() !=
-              LayersBackend::LAYERS_BASIC) {
-        // XXX - Workaround for Bug 587508. This will invalidate the part of the
-        // plugin window that might be touched by moving content somehow. The
-        // underlying problem should be found and fixed!
-        LayoutDeviceIntRegion r;
-        r.Sub(bounds, configuration.mBounds);
-        r.MoveBy(-bounds.X(), -bounds.Y());
-        LayoutDeviceIntRect toInvalidate = r.GetBounds();
-
-        WinUtils::InvalidatePluginAsWorkaround(w, toInvalidate);
-      }
-    }
-    rv = w->SetWindowClipRegion(configuration.mClipRegion, false);
-    NS_ENSURE_SUCCESS(rv, rv);
-  }
-  return NS_OK;
-}
-
-static HRGN CreateHRGNFromArray(const nsTArray<LayoutDeviceIntRect>& aRects) {
-  int32_t size = sizeof(RGNDATAHEADER) + sizeof(RECT) * aRects.Length();
-  AutoTArray<uint8_t, 100> buf;
-  buf.SetLength(size);
-  RGNDATA* data = reinterpret_cast<RGNDATA*>(buf.Elements());
-  RECT* rects = reinterpret_cast<RECT*>(data->Buffer);
-  data->rdh.dwSize = sizeof(data->rdh);
-  data->rdh.iType = RDH_RECTANGLES;
-  data->rdh.nCount = aRects.Length();
-  LayoutDeviceIntRect bounds;
-  for (uint32_t i = 0; i < aRects.Length(); ++i) {
-    const LayoutDeviceIntRect& r = aRects[i];
-    bounds.UnionRect(bounds, r);
-    ::SetRect(&rects[i], r.X(), r.Y(), r.XMost(), r.YMost());
-  }
-  ::SetRect(&data->rdh.rcBound, bounds.X(), bounds.Y(), bounds.XMost(),
-            bounds.YMost());
-  return ::ExtCreateRegion(nullptr, buf.Length(), data);
-}
-
-nsresult nsWindow::SetWindowClipRegion(
-    const nsTArray<LayoutDeviceIntRect>& aRects, bool aIntersectWithExisting) {
-  if (IsWindowClipRegionEqual(aRects)) {
-    return NS_OK;
-  }
-
-  nsBaseWidget::SetWindowClipRegion(aRects, aIntersectWithExisting);
-
-  HRGN dest = CreateHRGNFromArray(aRects);
-  if (!dest) return NS_ERROR_OUT_OF_MEMORY;
-
-  if (aIntersectWithExisting) {
-    HRGN current = ::CreateRectRgn(0, 0, 0, 0);
-    if (current) {
-      if (::GetWindowRgn(mWnd, current) != 0 /*ERROR*/) {
-        ::CombineRgn(dest, dest, current, RGN_AND);
-      }
-      ::DeleteObject(current);
-    }
-  }
-
-  // If a plugin is not visible, especially if it is in a background tab,
-  // it should not be able to steal keyboard focus.  This code checks whether
-  // the region that the plugin is being clipped to is NULLREGION.  If it is,
-  // the plugin window gets disabled.
-  if (IsPlugin()) {
-    if (NULLREGION == ::CombineRgn(dest, dest, dest, RGN_OR)) {
-      ::ShowWindow(mWnd, SW_HIDE);
-      ::EnableWindow(mWnd, FALSE);
-    } else {
-      ::EnableWindow(mWnd, TRUE);
-      ::ShowWindow(mWnd, SW_SHOW);
-    }
-  }
-  if (!::SetWindowRgn(mWnd, dest, TRUE)) {
-    ::DeleteObject(dest);
-    return NS_ERROR_FAILURE;
-  }
-  return NS_OK;
-}
-
 // WM_DESTROY event handler
 void nsWindow::OnDestroy() {
   mOnDestroyCalled = true;
@@ -7905,12 +7663,7 @@
       case WM_MOUSEHWHEEL: {
         MOUSEHOOKSTRUCT* ms = (MOUSEHOOKSTRUCT*)lParam;
         nsIWidget* mozWin = WinUtils::GetNSWindowPtr(ms->hwnd);
-        if (mozWin) {
-          // If this window is windowed plugin window, the mouse events are not
-          // sent to us.
-          if (static_cast<nsWindow*>(mozWin)->IsPlugin())
-            ScheduleHookTimer(ms->hwnd, (UINT)wParam);
-        } else {
+        if (!mozWin) {
           ScheduleHookTimer(ms->hwnd, (UINT)wParam);
         }
         break;
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/windows/nsWindow.h firefox-trunk-95.0~a1~hg20211020r596404/widget/windows/nsWindow.h
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/windows/nsWindow.h	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/windows/nsWindow.h	2021-10-20 19:28:52.000000000 +0000
@@ -182,8 +182,6 @@
   virtual LayoutDeviceIntPoint GetClientOffset() override;
   void SetBackgroundColor(const nscolor& aColor) override;
   virtual void SetCursor(const Cursor&) override;
-  virtual nsresult ConfigureChildren(
-      const nsTArray<Configuration>& aConfigurations) override;
   virtual bool PrepareForFullscreenTransition(nsISupports** aData) override;
   virtual void PerformFullscreenTransition(FullscreenTransitionStage aStage,
                                            uint16_t aDuration,
@@ -272,7 +270,8 @@
                                   WPARAM wParam, LPARAM lParam,
                                   bool aIsContextMenuKey, int16_t aButton,
                                   uint16_t aInputSource,
-                                  WinPointerInfo* aPointerInfo = nullptr);
+                                  WinPointerInfo* aPointerInfo = nullptr,
+                                  bool aIgnoreAPZ = false);
   virtual bool DispatchWindowEvent(mozilla::WidgetGUIEvent* aEvent,
                                    nsEventStatus& aStatus);
   void DispatchPendingEvents();
@@ -549,9 +548,6 @@
   void StopFlashing();
   static HWND WindowAtMouse();
   static bool IsTopLevelMouseExit(HWND aWnd);
-  virtual nsresult SetWindowClipRegion(
-      const nsTArray<LayoutDeviceIntRect>& aRects,
-      bool aIntersectWithExisting) override;
   LayoutDeviceIntRegion GetRegionToPaint(bool aForceFullRepaint, PAINTSTRUCT ps,
                                          HDC aDC);
   nsIWidgetListener* GetPaintListener();
@@ -561,24 +557,6 @@
       mozilla::wr::DisplayListBuilder& aBuilder,
       mozilla::wr::IpcResourceUpdateQueue& aResourceUpdates) override;
 
-  already_AddRefed<SourceSurface> CreateScrollSnapshot() override;
-
-  struct ScrollSnapshot {
-    RefPtr<gfxWindowsSurface> surface;
-    bool surfaceHasSnapshot = false;
-    RECT clip;
-  };
-
-  ScrollSnapshot* EnsureSnapshotSurface(ScrollSnapshot& aSnapshotData,
-                                        const mozilla::gfx::IntSize& aSize);
-
-  ScrollSnapshot mFullSnapshot;
-  ScrollSnapshot mPartialSnapshot;
-  ScrollSnapshot* mCurrentSnapshot = nullptr;
-
-  already_AddRefed<SourceSurface> GetFallbackScrollSnapshot(
-      const RECT& aRequiredClip);
-
   void CreateCompositor() override;
   void DestroyCompositor() override;
   void RequestFxrOutput();
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/widget/windows/WinMouseScrollHandler.cpp firefox-trunk-95.0~a1~hg20211020r596404/widget/windows/WinMouseScrollHandler.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/widget/windows/WinMouseScrollHandler.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/widget/windows/WinMouseScrollHandler.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -441,21 +441,6 @@
       ::SetForegroundWindow(destWindow->GetWindowHandle());
     }
 
-    // If the found window is our plugin window, it means that the message
-    // has been handled by the plugin but not consumed.  We should handle the
-    // message on its parent window.  However, note that the DOM event may
-    // cause accessing the plugin.  Therefore, we should unlock the plugin
-    // process by using PostMessage().
-    if (destWindow->IsPlugin()) {
-      destWindow = destWindow->GetParentWindowBase(false);
-      if (!destWindow) {
-        MOZ_LOG(
-            gMouseScrollLog, LogLevel::Info,
-            ("MouseScroll::ProcessNativeMouseWheelMessage: "
-             "Our window which is a parent of a plugin window is not found"));
-        return;
-      }
-    }
     MOZ_LOG(gMouseScrollLog, LogLevel::Info,
             ("MouseScroll::ProcessNativeMouseWheelMessage: Succeeded, "
              "Posting internal message to an nsWindow (%p)...",
@@ -481,33 +466,6 @@
     return;
   }
 
-  // If we're a plugin window (MozillaWindowClass) and cursor in this window,
-  // the message shouldn't go to plugin's wndproc again.  So, we should handle
-  // it on parent window.  However, note that the DOM event may cause accessing
-  // the plugin.  Therefore, we should unlock the plugin process by using
-  // PostMessage().
-  if (aWidget->IsPlugin() && aWidget->GetWindowHandle() == pluginWnd) {
-    nsWindowBase* destWindow = aWidget->GetParentWindowBase(false);
-    if (!destWindow) {
-      MOZ_LOG(gMouseScrollLog, LogLevel::Info,
-              ("MouseScroll::ProcessNativeMouseWheelMessage: Our normal window "
-               "which "
-               "is a parent of this plugin window is not found"));
-      return;
-    }
-    MOZ_LOG(
-        gMouseScrollLog, LogLevel::Info,
-        ("MouseScroll::ProcessNativeMouseWheelMessage: Succeeded, "
-         "Posting internal message to an nsWindow (%p) which is parent of this "
-         "plugin window...",
-         destWindow));
-    mIsWaitingInternalMessage = true;
-    UINT internalMessage = WinUtils::GetInternalMessage(aMessage);
-    ::PostMessage(destWindow->GetWindowHandle(), internalMessage, aWParam,
-                  aLParam);
-    return;
-  }
-
   // If the window is a part of plugin, we should post the message to it.
   MOZ_LOG(
       gMouseScrollLog, LogLevel::Info,
@@ -1634,11 +1592,6 @@
     if (aWidget && aWidget->GetWindowHandle() == mWnd) {
       return;
     }
-    // If the target window is not ours and received window is our plugin
-    // window, it comes from child window of the plugin.
-    if (aWidget && aWidget->IsPlugin() && !WinUtils::GetNSWindowBasePtr(mWnd)) {
-      return;
-    }
     // Otherwise, the message may not be sent by us.
   }
 
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/xpcom/base/Logging.cpp firefox-trunk-95.0~a1~hg20211020r596404/xpcom/base/Logging.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/xpcom/base/Logging.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/xpcom/base/Logging.cpp	2021-10-20 19:28:50.000000000 +0000
@@ -599,7 +599,7 @@
       charsWritten = strlen(buffToWrite);
     }
 
-    if (mAddProfilerMarker && profiler_can_accept_markers()) {
+    if (mAddProfilerMarker && profiler_thread_is_being_profiled()) {
       struct LogMarker {
         static constexpr Span<const char> MarkerTypeName() {
           return MakeStringSpan("Log");
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/xpcom/ds/nsHashKeys.h firefox-trunk-95.0~a1~hg20211020r596404/xpcom/ds/nsHashKeys.h
--- firefox-trunk-95.0~a1~hg20211017r596111/xpcom/ds/nsHashKeys.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/xpcom/ds/nsHashKeys.h	2021-10-20 19:28:51.000000000 +0000
@@ -103,37 +103,72 @@
 
 #ifdef MOZILLA_INTERNAL_API
 
+namespace mozilla::detail {
+
+template <class CharT, bool Unicode = true>
+struct comparatorTraits {};
+
+template <>
+struct comparatorTraits<char, false> {
+  static int caseInsensitiveCompare(const char* aLhs, const char* aRhs,
+                                    uint32_t aLhsLength, uint32_t aRhsLength) {
+    return nsCaseInsensitiveCStringComparator(aLhs, aRhs, aLhsLength,
+                                              aRhsLength);
+  };
+};
+
+template <>
+struct comparatorTraits<char, true> {
+  static int caseInsensitiveCompare(const char* aLhs, const char* aRhs,
+                                    uint32_t aLhsLength, uint32_t aRhsLength) {
+    return nsCaseInsensitiveUTF8StringComparator(aLhs, aRhs, aLhsLength,
+                                                 aRhsLength);
+  };
+};
+
+template <>
+struct comparatorTraits<char16_t, true> {
+  static int caseInsensitiveCompare(const char16_t* aLhs, const char16_t* aRhs,
+                                    uint32_t aLhsLength, uint32_t aRhsLength) {
+    return nsCaseInsensitiveStringComparator(aLhs, aRhs, aLhsLength,
+                                             aRhsLength);
+  };
+};
+
+}  // namespace mozilla::detail
+
 /**
- * hashkey wrapper using nsAString KeyType
- *
- * This is internal-API only because nsCaseInsensitiveStringComparator is
+ * This is internal-API only because nsCaseInsensitive{C}StringComparator is
  * internal-only.
  *
  * @see nsTHashtable::EntryType for specification
  */
-class nsStringCaseInsensitiveHashKey : public PLDHashEntryHdr {
+
+template <typename T, bool Unicode>
+class nsTStringCaseInsensitiveHashKey : public PLDHashEntryHdr {
  public:
-  typedef const nsAString& KeyType;
-  typedef const nsAString* KeyTypePointer;
+  typedef const nsTSubstring<T>& KeyType;
+  typedef const nsTSubstring<T>* KeyTypePointer;
 
-  explicit nsStringCaseInsensitiveHashKey(KeyTypePointer aStr) : mStr(*aStr) {
+  explicit nsTStringCaseInsensitiveHashKey(KeyTypePointer aStr) : mStr(*aStr) {
     // take it easy just deal HashKey
   }
 
-  nsStringCaseInsensitiveHashKey(const nsStringCaseInsensitiveHashKey&) =
+  nsTStringCaseInsensitiveHashKey(const nsTStringCaseInsensitiveHashKey&) =
       delete;
-  nsStringCaseInsensitiveHashKey(nsStringCaseInsensitiveHashKey&& aToMove)
+  nsTStringCaseInsensitiveHashKey(nsTStringCaseInsensitiveHashKey&& aToMove)
       : PLDHashEntryHdr(std::move(aToMove)), mStr(std::move(aToMove.mStr)) {}
-  ~nsStringCaseInsensitiveHashKey() = default;
+  ~nsTStringCaseInsensitiveHashKey() = default;
 
   KeyType GetKey() const { return mStr; }
   bool KeyEquals(const KeyTypePointer aKey) const {
-    return mStr.Equals(*aKey, nsCaseInsensitiveStringComparator);
+    using comparator = typename mozilla::detail::comparatorTraits<T, Unicode>;
+    return mStr.Equals(*aKey, comparator::caseInsensitiveCompare);
   }
 
   static KeyTypePointer KeyToPointer(KeyType aKey) { return &aKey; }
   static PLDHashNumber HashKey(const KeyTypePointer aKey) {
-    nsAutoString tmKey(*aKey);
+    nsTAutoString<T> tmKey(*aKey);
     ToLowerCase(tmKey);
     return mozilla::HashString(tmKey);
   }
@@ -145,10 +180,17 @@
   }
 
  private:
-  const nsString mStr;
+  const nsTString<T> mStr;
 };
 
-#endif
+using nsStringCaseInsensitiveHashKey =
+    nsTStringCaseInsensitiveHashKey<char16_t, true>;
+using nsCStringASCIICaseInsensitiveHashKey =
+    nsTStringCaseInsensitiveHashKey<char, false>;
+using nsCStringUTF8CaseInsensitiveHashKey =
+    nsTStringCaseInsensitiveHashKey<char, true>;
+
+#endif  // MOZILLA_INTERNAL_API
 
 /**
  * hashkey wrapper using nsACString KeyType
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/xpcom/ds/StaticAtoms.py firefox-trunk-95.0~a1~hg20211020r596404/xpcom/ds/StaticAtoms.py
--- firefox-trunk-95.0~a1~hg20211017r596111/xpcom/ds/StaticAtoms.py	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/xpcom/ds/StaticAtoms.py	2021-10-20 19:28:52.000000000 +0000
@@ -2226,7 +2226,7 @@
     Atom("_moz_swipe_animation_enabled", "-moz-swipe-animation-enabled"),
     Atom("_moz_gtk_csd_available", "-moz-gtk-csd-available"),
     Atom("_moz_gtk_csd_hide_titlebar_by_default", "-moz-gtk-csd-hide-titlebar-by-default"),
-    Atom("_moz_gtk_csd_transparent_background", "-moz-gtk-csd-transparent-background"),
+    Atom("_moz_gtk_csd_titlebar_radius", "-moz-gtk-csd-titlebar-radius"),
     Atom("_moz_gtk_csd_minimize_button", "-moz-gtk-csd-minimize-button"),
     Atom("_moz_gtk_csd_maximize_button", "-moz-gtk-csd-maximize-button"),
     Atom("_moz_gtk_csd_close_button", "-moz-gtk-csd-close-button"),
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/xpcom/io/nsEscape.cpp firefox-trunk-95.0~a1~hg20211020r596404/xpcom/io/nsEscape.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/xpcom/io/nsEscape.cpp	2021-10-17 14:43:04.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/xpcom/io/nsEscape.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -245,40 +245,41 @@
 // parts of an URL.  The bits are the "url components" in the enum EscapeMask,
 // see nsEscape.h.
 //
-// esc_Scheme        =     1
-// esc_Username      =     2
-// esc_Password      =     4
-// esc_Host          =     8
-// esc_Directory     =    16
-// esc_FileBaseName  =    32
-// esc_FileExtension =    64
-// esc_Param         =   128
-// esc_Query         =   256
-// esc_Ref           =   512
+// esc_Scheme        =      1
+// esc_Username      =      2
+// esc_Password      =      4
+// esc_Host          =      8
+// esc_Directory     =     16
+// esc_FileBaseName  =     32
+// esc_FileExtension =     64
+// esc_Param         =    128
+// esc_Query         =    256
+// esc_Ref           =    512
+// esc_ExtHandler    = 131072
 
 static const uint32_t EscapeChars[256] =
     // clang-format off
-//   0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F
+//     0      1      2      3      4      5      6      7      8      9      A      B      C      D      E      F
 {
-     0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,  // 0x
-     0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,  // 1x
-     0,1023,   0, 512,1023,   0,1023, 624,1023,1023,1023,1023,1023,1023, 953, 784,  // 2x   !"#$%&'()*+,-./
-  1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1008,1008,   0,1008,   0, 768,  // 3x  0123456789:;<=>?
-  1008,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,  // 4x  @ABCDEFGHIJKLMNO
-  1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1008, 896,1008, 896,1023,  // 5x  PQRSTUVWXYZ[\]^_
-   384,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,  // 6x  `abcdefghijklmno
-  1023,1023,1023,1023,1023,1023,1023,1023,1023,1023,1023, 896,1012, 896,1023,   0,  // 7x  pqrstuvwxyz{|}~ DEL
-     0                                                                              // 80 to FF are zero
+       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,  // 0x
+       0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,     0,  // 1x
+       0,132095,     0,131584,132095,     0,132095,131696,132095,132095,132095,132095,132095,132095,132025,131856,  // 2x   !"#$%&'()*+,-./
+  132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132080,132080,     0,132080,     0,131840,  // 3x  0123456789:;<=>?
+  132080,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,  // 4x  @ABCDEFGHIJKLMNO
+  132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132080,   896,132080,   896,132095,  // 5x  PQRSTUVWXYZ[\]^_
+     384,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,  // 6x  `abcdefghijklmno
+  132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,132095,   896,  1012,   896,132095,     0,  // 7x  pqrstuvwxyz{|}~ DEL
+       0                                                                                                            // 80 to FF are zero
 };
 // clang-format on
 
-static uint16_t dontNeedEscape(unsigned char aChar, uint32_t aFlags) {
+static bool dontNeedEscape(unsigned char aChar, uint32_t aFlags) {
   return EscapeChars[(uint32_t)aChar] & aFlags;
 }
-static uint16_t dontNeedEscape(uint16_t aChar, uint32_t aFlags) {
+static bool dontNeedEscape(uint16_t aChar, uint32_t aFlags) {
   return aChar < mozilla::ArrayLength(EscapeChars)
              ? (EscapeChars[(uint32_t)aChar] & aFlags)
-             : 0;
+             : false;
 }
 
 //----------------------------------------------------------------------------------------
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/xpcom/io/nsEscape.h firefox-trunk-95.0~a1~hg20211020r596404/xpcom/io/nsEscape.h
--- firefox-trunk-95.0~a1~hg20211017r596111/xpcom/io/nsEscape.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/xpcom/io/nsEscape.h	2021-10-20 19:28:51.000000000 +0000
@@ -104,7 +104,10 @@
       1u << 13, /* copy input to result buf even if escaping is unnecessary */
   esc_Colon = 1u << 14,       /* forces escape of colon */
   esc_SkipControl = 1u << 15, /* skips C0 and DEL from unescaping */
-  esc_Spaces = 1u << 16       /* forces escape of spaces */
+  esc_Spaces = 1u << 16,      /* forces escape of spaces */
+  esc_ExtHandler = 1u << 17   /* For escaping external protocol handler urls.
+                               * Escapes everything except:
+                               * a-z, 0-9 and !#$&'()*+,-./:;=?@[]_~ */
 };
 
 /**
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/xpcom/threads/nsProxyRelease.h firefox-trunk-95.0~a1~hg20211020r596404/xpcom/threads/nsProxyRelease.h
--- firefox-trunk-95.0~a1~hg20211017r596111/xpcom/threads/nsProxyRelease.h	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/xpcom/threads/nsProxyRelease.h	2021-10-20 19:28:51.000000000 +0000
@@ -185,13 +185,6 @@
   NS_ProxyRelease(aName, target, doomed.forget(), aAlwaysProxy);
 }
 
-template <class T>
-inline NS_HIDDEN_(void) NS_ReleaseOnMainThread(already_AddRefed<T> aDoomed,
-                                               bool aAlwaysProxy = false) {
-  NS_ReleaseOnMainThread("NS_ReleaseOnMainThread", std::move(aDoomed),
-                         aAlwaysProxy);
-}
-
 /**
  * Class to safely handle main-thread-only pointers off the main thread.
  *
diff -Nru firefox-trunk-95.0~a1~hg20211017r596111/xpcom/threads/TimerThread.cpp firefox-trunk-95.0~a1~hg20211020r596404/xpcom/threads/TimerThread.cpp
--- firefox-trunk-95.0~a1~hg20211017r596111/xpcom/threads/TimerThread.cpp	2021-10-17 14:43:05.000000000 +0000
+++ firefox-trunk-95.0~a1~hg20211020r596404/xpcom/threads/TimerThread.cpp	2021-10-20 19:28:51.000000000 +0000
@@ -139,7 +139,7 @@
     sAllocatorUsers++;
 
     if (MOZ_LOG_TEST(GetTimerLog(), LogLevel::Debug) ||
-        profiler_can_accept_markers()) {
+        profiler_thread_is_being_profiled(mTimerThreadId)) {
       mInitTime = TimeStamp::Now();
     }
   }
@@ -250,7 +250,7 @@
              (now - mInitTime).ToMilliseconds()));
   }
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled(mTimerThreadId)) {
     nsAutoCString name;
     mTimer->GetName(name);
     PROFILER_MARKER_TEXT(
@@ -524,7 +524,7 @@
     mMonitor.Notify();
   }
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled(mProfilerThreadId)) {
     struct TimerMarker {
       static constexpr Span<const char> MarkerTypeName() {
         return MakeStringSpan("Timer");
@@ -590,7 +590,7 @@
     mMonitor.Notify();
   }
 
-  if (profiler_can_accept_markers()) {
+  if (profiler_thread_is_being_profiled(mProfilerThreadId)) {
     nsAutoCString name;
     aTimer->GetName(name, aProofOfLock);