Thanks to a new JavaScript engine (named TraceMonkey) it looks as if Firefox 3.1 is going to be getting a major boost in performance.
Here are the benchmarks thus far:

Be sure to check out Brendan’s Roadmap Updates for more.  Also here are a few handy links from John Resig on the testing:

SunSpider, 1.83x faster (released by the WebKit team)
SunSpider ubench, 22.5x faster (released by the WebKit team for testing Squirrelfish)
Image Manipulation Demo, 6.46x faster (Change the contrast and brightness of images [...]

For a while now since December 18th the world was graced with Firefox 3.0 beta 2 release – the possible final release before a Release Candidate (features locked down, stability updates issued) is launched according to the Mozilla Firefox 3.0 schedule.
Beta 2 addresses over 900 memory issues as well as various stability issues within the Gecko core itself with Mozilla migrating over to the 1.9 platform for Firefox 3.0 and the new Mozilla 2.0 platform for Firefox 4.0 and other [...]

This has been a pretty good year for your favorite browser, hasn’t it? The Firefox Extension Guru has summed the entire year up for the folks at Mozilla in one great post that I think you should all check out.
Relive some of the memories you’ve had and think ahead at what 2007 has yet to bring us. Were you as excited about you Christmas presents as you were Firefox 2 coming out? Yeah – I [...]