Facebook Bans Firefox 3

Because I dared to try and access facebook with firefox 3, and all the cookies disabled, it won't let me back on there with firefox ever again, even though all the cookies have been enabled again!!

Everything is still working fine with the release candidate of IE 8 though.

What kind of people are we dealing with here? Or indeed, what kind of coding? or maybe it's all down to eratic electronic behaviour, and no one is responsible.

bit more here