Today, Mozilla released the latest version of popular browser Firefox 22. The new Firefox 22 you can either download it or wait for the automatic update. The new feature in this is asm.js, a feature that compiles JavaScript to assembly code to significantly speed up JavaScript performance. 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.

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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 elements
  • FIXED: Various security fixes
  • FIXED: Scrolling using some high-resolution-scroll aware touchpads feels slow (829952)


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