Firefox Beta Notes

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

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. If interested, please see the complete list of changes in this release.

What’s New

  • New

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

  • Changed

    Disallow calling WebIDL constructors as functions on the web

  • 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)

  • Developer

    Support for GStreamer 1.0 (see 806917 for build configuration)

  • Developer

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

  • Developer

    Mute and volume available per window when using WebAudio

  • Developer

    background-blend-mode enabled by default

  • Developer

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

  • Developer

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

  • Developer

    Error stack now contains column number

  • Developer

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

  • Fixed

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

  • Fixed

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

Known Issues

  • unresolved

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

    Resolved in v32.0a2

  • unresolved

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

    Resolved in v31.0

  • unresolved

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

    Resolved in v31.0a2

  • unresolved

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

  • unresolved

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