Firefox Nightly
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 Nightly

June 12, 2017

Version 56.0a1, first offered to Nightly channel users on June 12, 2017

Firefox Nightly gets a new version every day and as a consequence, the release notes for the Nightly channel are updated continuously to reflect features that have reached sufficient maturity to benefit from community feedback and bug reports. Features listed here may or may not make a final release of Firefox.


  • Search within the Options/Preferences panel to find relevant options across categories

    Bug 1353954


  • The application menu was restructured as part of the Photon redesign for Firefox 57. Nightly users are encouraged to flle bugs for any regression they may find.

    Bug 1372309
All Firefox Nightly downloads