Firefox Beta and Developer Edition
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.

131.0beta Firefox Beta

September 3, 2024

Version 131.0beta, first offered to Beta channel users on September 3, 2024

Firefox Beta gets updated 3 times a week and as a consequence, the release notes for the Beta 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 via our @FirefoxBeta X account.

New

  • When suggesting a default translation language, Firefox will now take into consideration languages you have previously used for translations.

  • Firefox will now temporarily remember when users grant permissions to sites (e.g. geolocation). Temporary permissions will be removed either after one hour or when the tab is closed.

  • Hovering the mouse over an unfocused tab will now display a visual preview of its contents.

  • You can now enable protection against suspected fingerprinters on Firefox for Android using custom and strict enhanced tracking protection options.

    Mobile ETP option

  • Bookmarks in Firefox for Android are now saved in the folder where you last added a bookmark, instead of defaulting to the top-level bookmarks folder.

  • We’ve re-introduced the ability to navigate to the search engine home page by clicking on the search bar icons with a SHIFT key modifier.

Developer

  • As part of the ongoing updates to SVG 2, SVGGraphicsElement.nearestViewportElement and SVGGraphicsElement.farthestViewportElement have been officially removed. Please note that these properties have had deprecation warnings since February.

  • Firefox now supports text fragments, which allows users to link directly to a specific portion of text in a web document via a special URL fragment. (Learn more)

Web Platform

  • Support for Cookies Having Independent Partitioned State (CHIPS) was now added, allowing developers to opt a cookie into storage partitioned per top-level site. (Learn more)

  • SameSite=None cookies will now be rejected when there is no Secure attribute included.

Get the most recent version

All Firefox Beta downloads