Been using Firefox for around 6 months, no problem.
When I logged on today, and tried to open Firefox like I always do, a box popped up and said I needed to create a profile.
Hmm, never done that before. I tried clicking the box away, but it persisted. Could not open firefox. Finally I gave up and created some kind of "default" profile.
It then opened me up to a Google homepage. All my bookmarks are erased. Cookies seem gone, too, as I have to reenter passwords on all my sites.
What's going on?!?
(and is there any way I can get my bookmarks back?!? I had a ton of them that would be hard for me to find again.

)