Firefox 18 Released with Numerous Performance Enhancements

Firefox 18 is expected to be officially released anytime now. However, as always, it has been uploaded to the FTP servers well in advance. If you wish to grab the stable release of Firefox 18 ahead of its announcement, scroll down and head over to Mozilla’s servers.


Changelog for the final version is also yet to be revealed. However, we can get a pretty good idea about what’s new by looking at the changelog for the beta. Firefox 18 ships with the new IonMonkey JavaScript engine, which promises up to 26% improvement in speed compared to Firefox 17. Mozilla has fixed several bugs related to Firefox’s proxy handling, and users surfing behind a proxy should be able to enjoy a much faster browsing experience. Mozilla is also promising improved startup times through smart handling of signed extension certificates, in addition to performance improvements surrounding tab switching. Beginning with Firefox 18, Persona backgrounds will no longer support animated images, in order to improve performance.

There are quite a few goodies for developers also in Firefox 18, including preliminary support for WebRTC and CSS Flexible boxes. Both of these features are disabled by default, and must be enabled from about:config. Other enhancements include support for W3C touch events, better image scaling algorithm, and support for retina displays.

[ Download Firefox 18 for Windows, Mac, and Linux ]