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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.

67.0beta Firefox Beta

March 18, 2019

Version 67.0beta, first offered to Beta channel users on March 18, 2019


  • Enable FIDO U2F API, and permit registrations for Google Accounts

  • Intent to ship: WebRender was enabled by default in Betas since Firefox 64 for Desktop NVIDIA GPUs on Windows 10 and should be released with Firefox 67 in May

  • Firefox 67 willl be able to run different Firefox installs side by side by default.

  • Tabs can now be pinned from the Page Actions menu in the address bar

  • Users can block known cryptominers and fingerprinters in the Custom settings or their Content Blocking preferences

  • The Import Data from Another Browser feature is now also available from the File menu

  • Firefox will now protect you against running older versions of Firefox which can lead to data corruption and stability issues.

  • Easier access to your list of saved logins from the main menu and login autocomplete.

  • We’ve added a toolbar menu for your Firefox Account to provide more transparency for when you are synced, sharing data across devices and with Firefox. Personalize the appearance of the menu with your own avatar.

  • Enabled AV1 support on Linux



  • Firefox no longer supports handling webcal: links with

  • Change to extensions in Private Windows: Any new extensions you add to the browser won’t work in Private Windows unless you allow this in the settings.

  • Included Twemoji Mozilla font updated to support Emoji 11.0 🥳


  • The DevTools Changes panel now supports copying modified CSS. You can either copy the full changes or individual changed rules.

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All Firefox Beta downloads