Firefox Nightly
Release Notes

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

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.

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

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!

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.

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.

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.

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.

“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.