Comment 12 for bug 1058209

Ok, so this is what I did:
Firstly, I removed Adblock plus. After a restart firefox asked me again if I want to install all of my extensions including ABP (although I removed it).
I removed it again and started to remove each add-on with a reboot after this. Sometimes it took me two reboots to reproduce the bug. I removed all of them except "Easy youtube video downloader".
It seems that it stopped after I removed "Https everywhere". After few restarts it didn't happen again.
I reinstalled "Https everywhere" to see if it would came back, but it wouldn't.

This are the logs from the error console:
#This one is before removing anything:

"Timestamp: 09/30/2012 12:18:07 PM
Warning: Unknown property '-moz-border-radius'. Declaration dropped.
Source File: about:startpage
Line: 56

While creating services from category 'profile-after-change', service for entry 'uGlobalMenuLoader', contract ID '@canonical.com/globalmenu-loader;1' does not implement nsIObserver.

While creating services from category 'profile-after-change', service for entry 'UpdateNotifier', contract ID '@ubuntu.com/update-notifier;1' does not implement nsIObserver.

Could not read chrome manifest 'file:///usr/lib/firefox/extensions/%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D/chrome.manifest'.

Could not read chrome manifest 'jar:file:///<email address hidden>!/chrome/he.manifest'.

Could not read chrome manifest 'jar:file:///<email address hidden>!/chrome/en-GB.manifest'.

Could not read chrome manifest 'jar:file:///<email address hidden>!/chrome/en-ZA.manifest'.

Timestamp: 09/30/2012 12:18:06 PM
Warning: Error in parsing value for 'overflow'. Declaration dropped.
Source File: chrome://unity/skin/browser.css
Line: 11

Timestamp: 09/30/2012 12:18:06 PM
Warning: Bootstrapped manifest not allowed to use 'style' directive.
Source File: file:///usr/share/mozilla/extensions/%7Bec8030f7-c20a-464f-9b0e-13a3a9e97384%<email address hidden>/chrome.manifest
Line: 3

Timestamp: 09/30/2012 12:18:06 PM
Warning: WARN addons.xpi: Add-on <email address hidden> is missing bootstrap method install

Timestamp: 09/30/2012 12:18:06 PM
Warning: WARN addons.xpi: Add-on <email address hidden> is missing bootstrap method uninstall"

#And the secong one is taken after ABP got back although I removed it:

"Timestamp: 09/30/2012 03:52:55 PM
Warning: Bootstrapped manifest not allowed to use 'style' directive.
Source File: file:///usr/share/mozilla/extensions/%7Bec8030f7-c20a-464f-9b0e-13a3a9e97384%<email address hidden>/chrome.manifest
Line: 3

Timestamp: 09/30/2012 03:52:55 PM
Warning: Bootstrapped manifest not allowed to use 'style' directive.
Source File: file:///usr/share/mozilla/extensions/%7Bec8030f7-c20a-464f-9b0e-13a3a9e97384%<email address hidden>/chrome.manifest
Line: 3

Timestamp: 09/30/2012 03:52:55 PM
Warning: Error in parsing value for 'overflow'. Declaration dropped.
Source File: chrome://unity/skin/browser.css
Line: 11

Could not read chrome manifest 'jar:file:///<email address hidden>!/chrome/en-ZA.manifest'.

Could not read chrome manifest 'jar:file:///<email address hidden>!/chrome/en-GB.manifest'.

Could not read chrome manifest 'jar:file:///<email address hidden>!/chrome/he.manifest'.

Could not read chrome manifest 'file:///usr/lib/firefox/extensions/%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D/chrome.manifest'.

Timestamp: 09/30/2012 03:52:55 PM
Error: no element found
Source File: moz-nullprincipal:{7ea8946e-fc78-42b5-b064-b4f8fc73ab79}
Line: 18

While creating services from category 'profile-after-change', service for entry 'UpdateNotifier', contract ID '@ubuntu.com/update-notifier;1' does not implement nsIObserver.

While creating services from category 'profile-after-change', service for entry 'uGlobalMenuLoader', contract ID '@canonical.com/globalmenu-loader;1' does not implement nsIObserver.

DNTP: Sun Sep 30 2012 15:52:58 GMT+0200 (IST)
New version of rules fetched -- processing, version: 29

Timestamp: 09/30/2012 03:52:59 PM
Warning: Unknown property '-moz-border-radius'. Declaration dropped.
Source File: about:startpage
Line: 56

Timestamp: 09/30/2012 03:53:27 PM
Error: Failed to decode base64 string!
Source File: resource:///components/nsUrlClassifierLib.js
Line: 1161"