Firefox Release

April 29, 2014

Version 29.0, first offered to Release channel users on April 29, 2014

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


  • Significant new customization mode makes it easy to personalize your Web experience to access the features you use the most (learn more)

  • A new, easy to access menu sits in the right hand corner of Firefox and includes popular browser controls

  • Sleek new tabs provide an overall smoother look and fade into the background when not active

  • An interactive onboarding tour to guide users through the new Firefox changes

  • The ability to set up Firefox Sync by creating a Firefox account (learn more)

  • Gamepad API finalized and enabled

  • HTTPS used for Yahoo Searches performed in en-US locale

  • Malay [ma] locale added



  • Clicking on a W3C Web Notification will switch to the originating tab


  • Developer Information
  • 'box-sizing' (dropping the -moz- prefix) implemented (learn more)

  • Console object available in Web Workers (learn more)

  • Promises enabled by default (learn more)

  • SharedWorker enabled by default

  • <input type="number"> implemented and enabled

  • <input type="color"> implemented and enabled

  • Enabled ECMAScript Internationalization API

  • Add-on bar has been removed, content moved to navigation bar

  • Implemented URLSearchParams from the URL specification (see MDN for details )


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

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

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

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

  • Local (file://) links don't work (995943)

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

All Firefox downloads