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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.

96.0 Firefox Release

January 11, 2022

Version 96.0, first offered to Release channel users on January 11, 2022


  • We’ve made significant improvements in noise-suppression and auto-gain-control as well as slight improvements in echo-cancellation to provide you with a better overall experience.

  • We’ve also significantly reduced main-thread load.

  • When printing, you can now choose to print only the odd/even pages.


  • On macOS, command-clicking links in Gmail now opens them in a new tab as expected.

  • Our newest release fixes an issue where video intermittently drops SSRC.

  • It also fixes an issue where WebRTC downgrades screen sharing resolution to provide you with a clearer browsing experience.

  • Plus, we’ve fixed video quality degradation issues on certain sites.

  • Detached video in fullscreen on macOS has been temporarily disabled to avoid some issues with corruption, brightness changes, missing subtitles and high cpu usage.

  • Various security fixes


  • Various bug fixes and new policies have been implemented in the latest version of Firefox. You can find more information in the Firefox for Enterprise 96 Release Notes.


  • Firefox for Linux changes the shortcut key for "Select All" from Alt-A to Ctrl-A for solving web-compatibility and avoiding conflict with access keys. If you want to keep using Emacs like key bindings, e.g., you configured your GTK settings to use Ctrl-A as a shortcut key for moving caret to beginning of a line, you must change ui.key.textcontrol.prefer_native_key_bindings_over_builtin_shortcut_key_definitions and ui.key.use_select_all_in_single_line_editor from about:config. Currently, these are disabled by default but will be enabled by default in a future release.

Web Platform

  • The Web Locks API landed. This allows scripts running in different service workers or tabs to coordinate with each other.

  • WebRTC library updated, bringing improved audio and video features for web conferencing applications.

  • Added CSS color-scheme support to allow web pages to indicate which color schemes they can be rendered with (for example, operating system dark mode).

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