View notes for:

Firefox Beta Desktop Notes (First offered to Beta channel users on November 26, 2012)

Check out "What’s New" and "Known Issues" for this version of Firefox below. As always, you’re encouraged to tell us what you think, or file a bug in Bugzilla.

What’s New

  • NEW
    Support for Retina Display on OS X 10.7 and up
  • NEW
    Preliminary support for WebRTC
  • CHANGED
    Experience better image quality with our new HTML scaling algorithm
  • CHANGED
    Performance improvements around tab switching
  • DEVELOPER
    CSS3 Flexbox implemented
  • DEVELOPER
    Support for new DOM property window.devicePixelRatio
  • DEVELOPER
    Support for @supports added
  • DEVELOPER
    Improvement in startup time through smart handling of signed extension certificates
  • HTML5
    Support for W3C touch events impemented, taking the place of MozTouch events
  • FIXED
    Disable insecure content loading on HTTPS pages (62178)
  • FIXED
    Improved responsiveness for users on proxies (769764)

Known Issues

  • Unresolved
    If you try to start Firefox using a locked profile, it will crash (see 573369)
  • Unresolved
    For some users, scrolling in the main GMail window will be slower than usual (see 579260)
  • Unresolved
    Windows: The use of Microsoft's System Restore functionality shortly after updating Firefox may prevent future updates (see 730285)
  • Unresolved
    Starting Firefox with -private flag incorrectly claims you are not in Private Browsing mode (see 802274)
    Unresolved on v18 Resolved in v19