Mozilla will port Fennec to S60, Nokia’s Symbian-based mobile platform, and the most popular overall, currently commanding about half the total installed base, effectively quadrupling the number of potential users for Mozilla’s mobile web browser.
Together with the other supported platforms, Windows Mobile and Maemo (Linux for Nokia Internet Tablets), Mozilla will reach about 65% of the mobile market.

On Tuesday, Mozilla released Firefox 3.1 beta 2 and Google released Chrome 0.4.154.33, so it's time for the latest installment of JavaScript performance testing.
Here's the highlight: Though Firefox remains the leader on the SunSpider test, with a score of 2,110, Chrome edged very close with 2,140. A lower score is better; because of some variation in results, the numbers I quoted are an average of several runs.

Normally you’d use canvas for 2D graphics only, but with the recent releases of next-gen javascript engines (Tracemonkey, V8 and Squirrelfish) overall speed got an immense boost, so we’ve been putting some more effort in a canvas based 3D engine.
An early demo of the engine didn’t do any texturing or real user interaction yet, but both of these things have since been added (albeit preliminary), and can now be seen in action in this new flickr-enabled mashup demo. Click any panel to assign a random photo to it.

The Xiph.org Foundation announced the release of Theora 1.0, the open source, royalty free, lossy video encoding format.
As a free video format, Mozilla and Opera have both announced that next releases of Firefox and Opera will support it out of the box. Firefox 3.1 beta 1, released a few weeks ago already include a Theora decoder and can be used to watch video in a handful of sites including Wikipedia and TinyVid.tv.

The Camino team has announced the availability of Camino 2 Alpha 1, the native Mac OS X Gecko-based based browser.
Among its major improvements is the update to the most recent Gecko 1.9 rendering engine (the same used in Firefox 3) with all the performance enhancements.
A new tab overview feature (accessible from the Window menu) displays a thumbnail of all currently opened tabs, similar to some Firefox extensions and a tab preview feature in the works for Firefox 3.1.