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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.

114.0a1 Firefox Nightly

April 10, 2023

Version 114.0a1, first offered to Nightly channel users on April 10, 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, our Mastodon 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


  • 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
  • Added UI to manage the DNS over HTTPS exception list.

    Bug 1596847
  • Bookmarks can now be searched from the Bookmarks menu. The Bookmarks menu is accessible by adding the Bookmarks menu button to the toolbar.

    Bug 1736937
  • Restrict searches to your local browsing history by selecting Search history from the History, Library or Application menu buttons.

    Bug 1736939
  • Mac users can now capture video from their cameras in all supported native resolutions. This enables resolutions higher than 1280x720.

    Bug 1806604
  • It is now possible to reorder the extensions listed in the extensions panel.

    Bug 1805924


  • DNS over HTTPS settings are now part of the Privacy & Security section of the Settings page and allow the user to choose from all the supported modes.

    Bug 1610741

Web Platform

  • Starting with Firefox 113, Nightly and early beta builds now behave similar to the other browsers when splitting a node (e.g., typing Enter to split a paragraph) and joining two nodes (e.g., typing Backspace at start of a paragraph to join the paragraph and the previous one) when using the built-in editor. When a node is split, the built-in editor creates new node after the original one, i.e., creates the right node. Similarly, when two nodes are joined, the built-in editor deletes the latter node and moves its children to end of the preceding node.

    This new behavior can also be enabled by web apps themselves for all channels with a call of document.execCommand("enableCompatibleJoinSplitDirection", false, "false") (introduced in bug 1810663). This command is available only when designMode is set to "on" or there is at least one editable element which has contenteditable attribute, and the built-in editor has not handled the insertParagraph, delete, or forwardDelete command.

    Bug 1820116
  • Starting with Firefox 113, the WebTransport API is now enabled in the Nightly channel, including RFC 9297 support. It's expected to ship to release in the near future. WebTransport is expected to see widespread use for media delivery and other applications. WebTransport is built on top of QUIC/HTTP3 and provides reliable streams and reliable and unreliable datagrams.

    Bug 1818754
  • DOM: Added support for ES Modules on DedicatedWorker and SharedWorker

    Bug 1812591

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