Well Mozilla is back again with their delays. Now Firefox 4 Beta 9 has been delayed and we may expect it now between January 14 to 18. Mozilla has planned to ship final Firefox 4.0 by February end.
Mozilla is planning to ship release candidate(RC) of Firefox 4.0 by early February and final version by end of February. And its confirmed that we will see Beta 10 soon.
A few days after Google Chrome 7 stable was released and Google Chrome 8 beta will be released week. Google already started Chrome 9 build today!