Firefox for Android
Release Notes

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

August 8, 2017

Version 55.0, first offered to Release channel users on August 8, 2017

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


  • Added actions to manage tabs

    • You can now set your homepage as your new tab
    • You can now reorder tabs by tapping and holding a tab in the tabs tray (or in the tab strip on tablets)
  • Added Greek (el) and Lao (lo) locales



  • Added option to accessibility settings to respect the system's set font size when displaying web pages

  • Video that is not visible will stop rendering to conserve power (audio will still continue)

  • Note: Firefox 55 is the last version that supports devices running Android 4.0


  • Developer Information
  • Sites that don’t use SSL can no longer access Geolocation APIs to determine a user’s physical location

Get the most recent version

All Firefox for Android downloads