See what’s new in Firefox!

Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the complete list of changes in this release.

36.0

Firefox Release

February 24, 2015

Version 36.0, first offered to Release channel users on February 24, 2015

We'd also like to extend a special thank you to all of the new Mozillians who contributed to this release of Firefox!

New

  • Pinned tiles on the new tab page can be synced

  • Support for the full HTTP/2 protocol. HTTP/2 enables a faster, more scalable, and more responsive web.

  • Locale added: Uzbek (uz)

Fixed

Changed

Developer

  • Inspector: More paste options in markup view

  • DOM Promises inspection

  • Eval sources now appear in the Debugger
    Debug JavaScript code that is evaluated dynamically, either as a string passed to eval() or as a string passed to the Function constructor

Developer Information

HTML5

  • Changed JavaScript 'const' semantics to conform better to the ES6 specification.
    The const declaration is now block-scoped and requires an initializer. It also can not be redeclared anymore.

  • Improved ES6 generators for better performance

  • CSS3 will-change property implemented.
    Hints the browser of elements that will be modified. The browser will perform some performance optimization for these

  • isolation CSS property implemented.
    Create a new stacking context to isolate groups of boxes to control which blend together

  • object-fit and object-position implemented.
    Defines how and where the content of a replaced element is displayed

  • CSSOM-View scroll behavior implemented allowing smooth scrolling of content without custom libraries

  • unicode-range CSS descriptor implemented

  • Support for the ECMAScript 6 Symbol data type added

unresolved

  • Style Editor: Extra white space appearing above the editor for a sourcemapped scss file (1128747)

  • For users who removed the Share & Hello buttons, this new version brings them back unexpectedly (1136300)

  • Firefox Hello does not work for link generators if there is no camera installed (1106941)