I have the same problem, here, as the Original Poster, but have a different problem.
The user that I'm trying to get the files from was corrupted by Windows! Most/All of the files in the User folder seem to be fine, but I am unable to locate where the folder with History might be.
Is there a specific place where FireFox stores its history?
I'm looking to recover the history/bookmarks (history would be most useful, as I usually type things in the address bar anyway, and it'll auto-complete the sites that I type in) from a User that I can NO LONGER log in as!
Any help is appreciated, thank you!