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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.

30.0beta

Firefox Beta

May 1, 2014

Version 30.0beta, first offered to Beta channel users on May 1, 2014

New

  • Mac OS X command-E sets find term to selected text

Fixed

  • TypedArrays don't support new named properties (see 695438)

  • Ignore autocomplete="off" when offering to save passwords via the password manager (see 956906)

Changed

  • With the exception of those bundled inside an extension or ones that are whitelisted, plugins will no longer be activated by default (see blog post)

  • Disallow calling WebIDL constructors as functions on the web

Developer

  • Support for GStreamer 1.0 (see 806917 for build configuration)

  • Support for alpha option in canvas context options (feature description)

  • Error stack now contains column number

  • ES6 array and generator comprehensions implemented (read docs for more details)

  • Use of line-height allowed for <input type="reset|button|submit">

  • background-blend-mode enabled by default

  • Mute and volume available per window when using WebAudio

  • Fixes to box-shadow and other visual overflow (see bug 480888)

Developer Information

unresolved

  • Without affecting security, after restoring your session, Extended Validation Certificates might not display (See 995801)

  • Text Rendering Issues on Windows 7 with Platform Update KB2670838 (MSIE 10 Prerequisite) or on Windows 8.1 has a workaround (see 812695)

  • Exit is not always completed when "clear history when Firefox closes" is enabled (1005487)

  • Mac OS X: cmd-L no longer opens a new window when no window is available (1008793)

  • Slow shut downs lead to 'Firefox is already running' warning (see 966469 and 985655)