I've been having the same problem with firefox 3... I usually refresh the page and then my login details appear
I stopped using Firefox after I realized Safari is just better. It's much lighter and doesn't snag as much as firefox did for me.
yea im having problems too, but only with these forums. When I login i just get logged out without. weird.
Safari is nice, but it is missing a lot of plugins for Alexa, PR etc. I really like it over all though. Nice, fast and clean.