Firefox 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.

72.0 Firefox Release

January 7, 2020

Version 72.0, first offered to Release channel users on January 7, 2020

We'd like to extend a special thank you to all of the new Mozillians who contributed to this release of Firefox.

New

  • Firefox’s Enhanced Tracking Protection marks a major new milestone in our battle against cross-site tracking: we now block fingerprinting scripts by default for all users, taking a new bold step in the fight for our users’ privacy.

  • Firefox replaces annoying notification request pop-ups with a more delightful experience, by default for all users. The pop-ups no longer interrupt your browsing, in its place, a speech bubble will appear in the address bar when you interact with the site.

  • Picture-in-picture video is now also available in Firefox for Mac and Linux: Select the blue icon from the right edge of a video to pop open a floating window so you can keep watching while working in other tabs or apps. Learn how the feature works.

Fixed

Changed

  • Support for blocking images from individual domains has been removed from Firefox, because of low usage and poor user experience.

Enterprise

  • Experimental support for using client certificates from the OS certificate store can be enabled by setting the preference security.osclientcerts.autoload to true (Windows only).

Developer

  • Developer Information

  • Debugger Watchpoints let developers observe object property access and writes for easier to track data flow through an application.

  • Firefox now supports simulation of meta viewport in Responsive Design Mode.

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