I really prefer firefox as well. With the IE 8.0, some games just screw up for me and will not even play correctly. Firefox works fine and has tons of cool features.
Google chrome in my opinion is only good for anything java. For me I couldn't even load google with it... which is kind of ironic. And I'm on a new computer that runs everything else at hyper speed, after that haven't tried it again. Firefox is the best in my opinion, except the updates every 2 seconds :/