Each time I open Fire Fox, it acts as if it is the first time I'm opening the program. The 'Welcome to Fire Fox' first-run page always shows up when I open the program. None of my preferences, like the custom themes, save - however my bookmarks, which I chose to have transferred over from my previous Fire Fox, seem to be saving. I have version 5.01 Also, I tried all of the steps from this help page: http://support.mozilla.com/en-US/kb/Preferences%20are%20not%20saved?s=settings+don%27t+save+after+firefox+is+closed&as=s However, I am unable to delete or make changes (such as renaming) the ''Prefs'' file because it keeps telling me that the file is open. However, when ever I go to my task manager there is nothing under the name or description of Fire Fox running. So I can't figure out how to close this file that is supposedly still open.