See what’s new in Firefox!

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.


Firefox for Android Aurora

July 22, 2014

Version 33.0a2, first offered to Aurora channel users on July 22, 2014


  • Option added to clear data when quitting

  • Enhanced tab management:

    • Undo a closed tab
    • List recently closed tabs
    • Close all tabs at once
    • Quick switch-to-tab option when opening a new or private tab
  • Slimmer and faster JavaScript strings

  • New CSP (Content Security Policy) backend


Developer Information



  • Fix incomplete downloads being marked as complete by detecting broken HTTP1.1 transfers (237623)