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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74.0beta
Firefox Beta

February 11, 2020

Version 74.0beta, first offered to Beta channel users on February 11, 2020

New

  • Firefox users can now import profile data from Edgium on Windows and Mac

  • A New Container Tab menu can now be opened with right click on the new tab button. In addition, an option to require a container tab to be selected when the new tab button is clicked is available.

Changed

  • On Windows, Ctrl+I can now be used to open the Page Info window instead of opening the Bookmarks sidebar. Ctrl+B still opens the Bookmarks sidebar.

  • DNS over HTTPS (with Cloudflare as the DNS resolver) will begin to roll out for users, turning the option on by default for users in the United States. For an alternate DNS service, users can select NextDNS via the Network Settings dialog in Preferences.

  • Disabled TLS 1.0 and TLS 1.1. Sites that don't support TLS version 1.2 will show an error page.

Developer

  • Developer Information
  • Service Workers and Web App Manifests are easier to inspect in the Developer Tools new Application panel, which also integrates into the newly landed Service Worker debugging capabilities.

Get the most recent version

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

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

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