Everything used to work fine since this morning when I experienced a FF freezing (Application not responding). I forced it to quit to relaunch it. Since, FF6 starts well and I can do web browsing during 2 minutes but then, it freezes again '''systematically''' (during more than 10 minutes, I didn't wait longer). I noticed that the freezing '''always occurs 2 minutes''' after FF is launched, even if I do no web browsing at all (I hide it once it has started and check the context menu from the MacOSX Dock). I get the same behaviour when I start FF in '''safe mode'''.