Firefox 36.0

What's new in this version:

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)
- New preferences implementation enabled for the first half of the beta cycle

CHANGED:
- The Flash protected-mode sandbox is disabled on Windows, to evaluate the stability impact of protected mode
-  -remote option removed
- No longer accept insecure RC4 ciphers whenever possible
- Phasing out Certificates with 1024-bit RSA Keys
- Shut down hangs will now show the crash reporter before exiting the program
- Add-on Compatibility

HTML5:
- Implemented a subset of the Media Source Extensions (MSE) API to allow native HTML5 playback on YouTube.
- Support for the ECMAScript 6 Symbol data type added
- unicode-range CSS descriptor implemented
- CSSOM-View scroll behavior implemented allowing smooth scrolling of content without custom libraries object-fit and object-position implemented.
- Defines how and where the content of a replaced element is displayed isolation CSS property implemented.
- Create a new stacking context to isolate groups of boxes to control which blend together
- CSS3 will-change property implemented.
- Hints the browser of elements that will be modified. The browser will perform some performance optimization for these
- 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.
- implemented for more privacy. Allows to control the content of the HTTP referer header.
- Improved ES6 generators for better performance

DEVELOPER:
- 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
- DOM Promises inspection
- Inspector: More paste options in markup view

FIXED:
- CSS gradients work on premultiplied colors
- Fix some unexpected logout from Facebook or Google after restart