Firefox 18 Enters Beta Channel With IonMonkey JavaScript JIT Compiler

Pulkit Chandna

A new Firefox beta for Windows, Mac, and Linux is now available for download, Mozilla announced on Monday. Scheduled to hit the stable release channel in the week of January 6, 2013 as Firefox 18 , this beta includes, among a host of other things, a brand new JavaScript JIT compiler.

Under development for over an year now, the IonMonkey JavaScript JIT compiler is claimed to be significantly more efficient and faster than both JagerMonkey and TraceMonkey . As a result, Mozilla expects this version of Firefox to fare better while handling Web apps, games and other pages rich in JavaScript.

This beta also packs support for W3C touch events, preliminary WebRTC support, and the ability to disable insecure content on HTTPS websites. On the Mac front, Mozilla has added Retina Display support (OSX 10.7 and up). For a complete list of changes, see the release notes .

With the Mozilla development team set to take a much-deserved two-week hiatus in December, this latest beta build will take seven weeks, instead of the usual six, to go gold, as will Firefox 19 and 20.

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