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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.

112.0a1 Firefox Nightly

February 13, 2023

Version 112.0a1, first offered to Nightly channel users on February 13, 2023

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.

You can interact with other Firefox Nightly users and give your feedback to Mozilla staff in the Nightly Matrix room on


  • Say hello to enhanced Picture-in-Picture! Rewind, check video duration, and effortlessly switch to full-screen mode on the web's most popular video websites.

    Bug 1778801
  • The Awesomebar result menu is now enabled in Firefox Nightly, allowing you to remove history results and dismiss sponsored Firefox Suggest results.

    Bug 1789661
  • Right-clicking on password fields now shows an option to reveal the password.

    Bug 1816988
  • Ubuntu Linux users can now import their browser data from the Chromium Snap package. Currently, this will only work if Firefox is not also installed as a Snap package, but work is underway to address this!

    Bug 1467094
  • Do you use the tab list panel in the tab bar? If so, you can now close tabs by middle-clicking items in that list.

    Bug 953217
  • You've always been able to un-close a tab by using (Cmd/Ctrl)-Shift-T. Now, that same shortcut will restore the previous session if there are no more closed tabs from the same session to re-open.

    Bug 1423125
  • Starting with Firefox 112, Nightly users on macOS and Linux can now use FIDO2 / WebAuthn authenticators over USB. Some advanced features, such as fully passwordless logins, require a PIN to be set on the authenticator. It is expected to ship to all users in a future release.

    Bug 1814487
  • For all ETP Strict users, we extended the list of known tracking parameters that are removed from URLs to further protect our users from cross-site tracking.

    Bug 1773983


  • The deprecated U2F Javascript API is now disabled by default. The U2F protocol remains usable through the WebAuthn API. The U2F API can be re-enabled using the security.webauth.u2f preference.

    Bug 1809333

Web Platform

  • “Clear” button, newly added to the date picker panel, allows users to quickly clear the input with type “date“ or “datetime-local” and provides familiar experience across browsers.

    Bug 1811187

Get the most recent version

All Firefox Nightly downloads