I think I got it. After first opening the program when I hit the log in button it kept taking me back to the un-logged-in forum page. I quit the program, still wouldn't let me log in, saw the register button tried that. It took me an access denied page, on the top left was the my account button hit that and it worked.
i had the problem when i first installed it. I tried clearing the private data cache and history then I saw it would log in. The problem just went away on its own.
I love ff3 it is a great browser. It is so much faster than ie. I find that ie lags too much when switching tabs, but that is not the case with ff. Anyway, I had no problems logging in to cb with it. Worked like a charm.
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