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 complete list of changes in 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)