...all 600 of 'em.
I was getting a weird error after installing Google Accelerator (although I don't think this was the problem) so I uninstalled Firefox and nuked my profile.
Big mistake, I lost every bookmark I'd kept for about 2 years, my password file, plus cookies which means that I now have to do the usual "forgot your password?"
thing every time I visit one of my websites.
This sucks.
BACK UP YOUR PROFILE PEOPLE!