Firefox 4 beta 7 Fast, but Chrome and Opera are faster http://www.zdnet.com/blog/hardware/firefox-4-beta-7-fast-but-chrome-and-opera-are-faster/10325 Here are the raw results if you’re into such things: Chrome 7.0.517.44 IE8 (8.0.6001.18975) Chrome 8.0.552.200 beta Firefox 3.6.12 Firefox 4.0 beta 7 Opera 10.63 Opera 11 Alpha IE9 beta (9.0.7930.16406) Mozilla have managed to up the horsepower of the new Firefox 4 beta 7 JavaScript engine, but it still has a way to go before it can catch up with Chrome and Opera