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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.

118.0beta Firefox Beta

August 29, 2023

Version 118.0beta, first offered to Beta channel users on August 29, 2023

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 Twitter account.


  • Automated translation of web content is now available to Firefox users! Unlike cloud-based alternatives, translation is done locally in Firefox, so that the text being translated does not leave your machine.

  • On Firefox for Android, printing page content from the browser or share menu is now available.

  • On Firefox for Android, pinned user shortcuts now open in an existing tab if it already has the same URL.

  • Web Audio in Firefox now uses the FDLIBM math library on all systems to improve anonymity with Fingerprint Protection.

  • The visibility of fonts to websites has been restricted to system fonts and language pack fonts to mitigate font fingerprinting in Private Browsing windows.


  • On Firefox for Android, the clearing of site data was moved from "Browsing history and site data" to the "Cookies and site data" menu item.


Web Platform

  • 10 new CSS math functions are now supported: round, mod, rem, pow, sqrt, hypot, log, exp, abs, sign.

  • OpaqueResponseBlocking is now enabled by default.

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