Firefox Beta
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.

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71.0beta
Firefox Beta

October 21, 2019

Version 71.0beta, first offered to Beta channel users on October 21, 2019

New

  • Firefox has a new command line parameter, --kiosk, that opens Firefox in fullscreen mode

  • Windows users now have the ability to pop out videos on the web into an always-on-top video player using the Picture-in-Picture feature! For most videos, this can be accomplished by hovering the video with the mouse, and clicking on the Picture-in-Picture toggle.

  • Locales added: Catalan (Valencian) (ca-valencia), Tagalog (tl), Triqui (trs)

Changed

  • Redesigned internal configuration page (about:config)

  • A new Certificate Viewer that is easier to use, with more features and more detailed information.

Developer

Web Platform

  • Subgrid greatly enhances the utility and flexibility of grid layouts by allowing the grid of a child to use the tracks defined on the parent. In addition, the DevTools grid inspector has been improved to support subgrid.

Get the most recent version

Your system may not meet the requirements for Firefox, but you can try one of these versions:

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Your system doesn't meet the requirements to run Firefox.

Please follow these instructions to install Firefox.

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All Firefox Beta downloads