Download Firefox

Firefox is no longer supported on Windows 8.1 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Download Firefox ESR 64-bit

Download Firefox ESR 32-bit

Download a different build

Firefox is no longer supported on macOS 10.14 and below.

Please download Firefox ESR (Extended Support Release) to use Firefox.

Download Firefox ESR
Firefox Privacy Notice
Get Mozilla VPN

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.

76.0a1 Firefox Nightly

March 10, 2020

Version 76.0a1, first offered to Nightly channel users on March 10, 2020

Firefox Nightly gets updated 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.

Warning: Features listed here may or may not make a final release of Firefox.

In addition to these release notes, you can follow ongoing development on our @FirefoxNightly Twitter account as well as read our Nightly Blog.

New

  • Picture-in-Picture now supports keyboard controls, on most websites, for Play / Pause, Volume and Seeking (see Bug 1602841 for the list of keyboard controls)

    Bug 1602841

  • Double-clicking on the Picture-in-Picture player window now puts it in fullscreen mode.

    Bug 1607882

Changed

  • Accessing saved passwords in about:logins on Windows and macOS now requires the user to authenticate with their operating system if no master password is set.

    Bug 1194529

Developer

Web Platform

Get the most recent version

All Firefox Nightly downloads