Here are few quick tips on getting to see what could be wrong with firefox.
Config entries – about:config
Support Information – about:support
Details on config entries – http://kb.mozillazine.org/About:config_entries
Reset firefox profile – https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems
- 2013/02/03 Taking screenshot in firefox.
- 2010/09/27 Change the firefox theme without restarting.
- 2011/09/13 Manually remove all the duplicate bookmarks in Firefox
- 2011/07/02 Install the fastest Mozilla browser on your N900