diff -Nru firefox-lp-improvements-0.99.89/content/user_scripts/lp_karma_suffix.user.js firefox-lp-improvements-0.99.90/content/user_scripts/lp_karma_suffix.user.js
--- firefox-lp-improvements-0.99.89/content/user_scripts/lp_karma_suffix.user.js	2011-02-14 23:06:10.000000000 +0000
+++ firefox-lp-improvements-0.99.90/content/user_scripts/lp_karma_suffix.user.js	2012-03-12 16:56:53.000000000 +0000
@@ -120,8 +120,9 @@
         if (karmaNode) {
             // Bug Trail Link
             var karmaLink = document.createElement("a");
+            //alert(people_cache[person]['person_name'].replace(/\(.*\)/, ''));
             karmaLink.href = "http://search.gmane.org/?query=&author="
-                + people_cache [person]['person_name'].replace (/[ -]/g, "+")
+                + people_cache[person]['person_name'].replace(/\(.*\)/, '')
                 + "&group=gmane.linux.ubuntu.bugs.general&sort=date&DEFAULTOP=and";
             karmaLink.title = "Follow bug trail of this user";
             karmaLink.innerHTML = karmaNode;
@@ -223,6 +224,12 @@
 
     var person  = link.substr(link.lastIndexOf("~")+1);
 
+    // Don't get confused by links that look like people but really are PPA files
+    var re = new RegExp(".*\\+files.*");
+    if (re.test(link)) {
+        return;
+    }
+
     // Detect and drop sub directory matches
     var slash = person.indexOf("/");
     if (slash != -1) {
diff -Nru firefox-lp-improvements-0.99.89/debian/changelog firefox-lp-improvements-0.99.90/debian/changelog
--- firefox-lp-improvements-0.99.89/debian/changelog	2012-02-15 22:48:39.000000000 +0000
+++ firefox-lp-improvements-0.99.90/debian/changelog	2012-03-12 17:01:42.000000000 +0000
@@ -1,3 +1,10 @@
+firefox-lp-improvements (0.99.90-0ubuntu1~ppa1) precise; urgency=low
+
+  * lp_karma_suffix.user.js: don't add in lp username into the follow bug
+    trail link (LP: #911390)
+
+ -- Brian Murray <brian@ubuntu.com>  Mon, 12 Mar 2012 09:57:22 -0700
+
 firefox-lp-improvements (0.99.89-0ubuntu1~ppa1) precise; urgency=low
 
   * lp_work_item_editor.user.js: update to deal with Launchpad javascript
diff -Nru firefox-lp-improvements-0.99.89/install.rdf firefox-lp-improvements-0.99.90/install.rdf
--- firefox-lp-improvements-0.99.89/install.rdf	2012-02-15 22:48:27.000000000 +0000
+++ firefox-lp-improvements-0.99.90/install.rdf	2012-03-12 17:31:10.000000000 +0000
@@ -6,7 +6,7 @@
   <RDF:Description RDF:about="urn:mozilla:install-manifest"
                    em:name="Launchpad Improvements"
                    em:id="{ec8030f7-c20a-464f-9b0e-13a3a9e97384}"
-                   em:version="0.99.89"
+                   em:version="0.99.90"
                    em:description="Enhances Launchpad with a compilation of useful features written by Ubuntu developers."
                    em:creator="Brian Murray (All user scripts copyright their original authors)"
                    em:optionsURL="chrome://launchpadimprovements/content/options.xul"