re: not working for me
@Josuemental: I'm not sure why it would revert back. Two reasons that I can think of: 1. your directory is read-only (or you don't have permissions to write there). When you add bookmarks, do they stay? 2. Your firefox install is corrupted. Try reinstalling it, but before you do, move/rename your profile. Your profiles should be in: %APPDATA%\Mozilla\Firefox\Profiles
This is a comment on "Firefox 4 doesn't save tabs (Firefox 5 - now)"