Okay, just updated to version 1.5.0.2 a couple days ago. Everything was working fine until I restarted tonight. None of my engines are installed, all of my bookmarks are gone, and Firefox will not retain any settings after closing and restarting the program. I can't install any extentions whatsoever, and when I go to bookmark a page I have to click the "Create in" dropdown menu to select a duplicate Bookmarks folder in order to save my bookmarks, otherwise nothing happens by just pressing "enter." This same thing happened when I updated to version 1.5. Everything just seems broken, and no settings will be remembered. Very frustrating. Tried uninstalling Firefox and reinstalling but no luck. Any help would be greatly appreciated.