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 Release

September 20, 2016

Version 49.0, first offered to Release channel users on September 20, 2016

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


  • Updated Firefox Login Manager to allow HTTPS pages to use saved HTTP logins. It’s one more way Firefox is supporting Let’s Encrypt and helping users transition to a more secure web.

  • Updated tab appearance and behavior

    • Outdated tabs are now hidden when restore tabs setting is set to "Always restore"
    • Remember scroll position and zoom level for open tabs
    • Updated media controls to avoid playing sounds from multiple tabs at once
    • Visual improvements in favicon display
  • Added tour of indispensable features like Reader View and Sync to First Run page

  • Locales added: Spanish from Chile (es-CL) and Norwegian (Nynorsk) (nn-NO)


  • Default search engine changed to Yahoo for Chinese (Traditional) locale.


Developer Information