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| Strange Firefox behaviour: fixing add-on corruption. Posted: 15 Sep 2010 11:49 PM PDT I had Firefox suddenly start to behave strangely: I would see strange looking tabs, and many blank pages, instead of websites… and the occasional “page not found” message. Yet IE8 was working fine. I disabled all the plugins, and FF would then start working normally again. After a bit of triel and error, I eventually found that the problem was with the tab kit plus add-on. But the add-on was working fine on another similar PC… So I thought: maybe tab kit plus has some corrupt data, so I’ll uninstall it, restart FF, then re-install tab kit plus. Well, it didn’t seem to have any effect. After some research, I found that this can sometimes happen to Firefox, and the only way out, is to create a new profile. Since creating a new profile, means you will lose all the bookmarks, plugins, etc from the old profile, I made a backup of the bookmarks: bookmarks -> organise bookmarks -> import and backup -> backup -> select where to save the backup (and its name). I then shutdown firefox (restart your PC if you want to be sure). I then Exit, and start firefox normally, and I get an “out of the box” firefox. I then inport the favorites, and re-install the plugins, and the problem is gone. An interesting side effect of this is: With the new profile, Firefox seems much faster (even with all the add-ons and bookmarks back to normal!)… I wonder if Firefox needs a “cleanup” function / add-on, to maintain its performance? Then from a command prompt (cmd), I enter: firefox -ProfileManager The window that pops up allows you to create a new profile (create profile button), and I also delete the old corrupt profile (delete profile button). Related posts:
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