http://www.computerworld.com/s/article/9196258/Firefox_4_regains_speed_mojoWith the release of Firefox 4 Beta 7, Mozilla returned to near the top spot in browser performance rankings.
According to tests run by Computerworld, the new browser is about three times faster than the current production version of Firefox in rendering JavaScript, and lags behind only Opera among the top five browser makers.
On Wednesday, Mozilla launched Firefox 4 Beta 7, a preview that includes all the features slated to make it into the final, polished version next year.
Beta 7 was the first to include Mozilla's new JavaScript JIT (Just In Time) compiler, dubbed "JagerMonkey," which shot the browser's performance into the No. 2 slot behind the alpha of Opera 11.
In two of the three tests, Firefox 4 Beta 7 proved three times faster than Firefox 3.6.12, the current production build.
That much of a speed increase is pretty impressive. Glad to see they addressed the poor JavaScript performance.
