New
#11
Let me ask you this. When you uninstalled and reinstalled FF, did you have to reinstall your extensions and bookmarks and so on or where they already there?
Give a shot. Rename the profile folder. Start up FF and see what happens. Worse that can happen is that you have same problem and the only thing you lost was a bit of time. You can trash the new profile folder and rename yours back to normal.
I might be new to the forums here but I've been using this method since FF v1.x.