Firefox 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 Release

August 25, 2017

Version 55.0.3, first offered to Release channel users on August 25, 2017


  • Fix an issue with addons when using a path containing non-ascii characters (bug 1389160)

  • Fix file uploads to some websites, including YouTube (bug 1383518)

All Firefox downloads