Firefox Beta
Release Notes

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 system requirements of this release.

34.0beta
Firefox Beta

October 16, 2014

Version 34.0beta, first offered to Beta channel users on October 16, 2014

New

  • Firefox Hello real-time communication client

  • Easily switch themes/personas directly in the Customizing mode

  • Wikipedia search now uses HTTPS for secure searching (en-US only)

  • Implementation of HTTP/2 (draft14) and ALPN

  • Recover from a locked Firefox process in the "Firefox is already running" dialog on Windows

Fixed

  • CSS transitions start correctly when started at the same time as changes to display, position, overflow, and similar properties

Developer

  • Developer Information
  • WebIDE: Create, edit, and test a new Web application from your browser

  • Highlight all nodes that match a given selector in the Style Editor and the Inspector's Rules panel

  • Improved User Interface of the Profiler

  • console.table function added to web console

Web Platform

  • Support for the ECMAScript 6 Symbol data type added

  • ECMAScript 6 WeakSet Implemented

  • JavaScript Template Strings Implemented

  • CSS3 Font variants and features control (e.g. kerning) implemented

  • WebCrypto: RSA-OAEP, PBKDF2 and AES-KW support

  • WebCrypto: wrapKey and unwrapKey implemented

  • WebCrypto: Import/export of JWK-formatted keys

  • matches() DOM API implemented (formerly mozMatchesSelector())

  • Performance.now() for workers implemented

  • WebCrypto: ECDH support

unresolved

  • Windows: On some combination of hardware and drivers, the main window could be black. In this case, update your graphics drivers (1083071)

All Firefox Beta downloads