Firefox 22 hits the web with faster JavaScript

Posted on Wednesday, Jun 26 2013 @ 13:05 CEST by Thomas De Maesschalck
Firefox logo
Mozilla has published Firefox 22, you can download it over here or wait for the automatic update if you already have Firefox. New in this release is asm.js, a feature that compiles JavaScript to assembly code to significantly speed up JavaScript performance. Especially 3D games like the Epic Citadel demo should benefit greatly from this. Other than that, Firefox 22 also enables WebRTC support by default (for video calls) and introduces a social services manager in the Add-ons menu.

Here's the full overview of what's new:
  • NEW: WebRTC is now enabled by default!
  • NEW: Windows: Firefox now follows display scaling options to render text larger on high-res displays
  • NEW: Mac OS X: Download progress in Dock application icon
  • NEW: HTML5 audio/video playback rate can now be changed
  • NEW: Social services management implemented in Add-ons Manager
  • NEW: asm.js optimizations (OdinMonkey) enabled for major performance improvements
  • CHANGED: Improved WebGL rendering performance through asynchronous canvas updates
  • CHANGED: Plain text files displayed within Firefox will now word-wrap
  • CHANGED: For user security, the |Components| object is no longer accessible from web content
  • CHANGED: Pointer Lock API can now be used outside of fullscreen
  • DEVELOPER: CSS3 Flexbox implemented and enabled by default
  • DEVELOPER: New Web Notifications API implemented
  • DEVELOPER: Added clipboardData API for JavaScript access to a user's clipboard
  • DEVELOPER: New built-in font inspector
  • HTML5: New HTML5 and
  • FIXED: Various security fixes
  • FIXED: Scrolling using some high-resolution-scroll aware touchpads feels slow (829952)


  • About the Author

    Thomas De Maesschalck

    Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.



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