Firefox 122 is out: here is what is new

Martin Brinkmann
Jan 23, 2024
Updated • Jan 23, 2024
Added information and a link to the security report.

Mozilla Firefox 122.0 is the latest Stable version of the open source web browser. The new browser version fixes several security issues and makes a few changes to the browser's functionality and core.

The official Firefox 122.0 and Firefox 115.7 ESR release date is January 23, 2024.  Development editions of Firefox receive updates to new versions at the same time.

Firefox Beta and Developer editions move to version 123.0 and Firefox Nightly to version 124. The Android version follows the same schedule as the stable version; it is also updated to version 122.0.

Executive Summary

  • Firefox 122.0 and Firefox 115.7 ESR address several security issues in the web browser.
  • Firefox supports the creation and using of passkeys on macOS, but only in iCloud Keychain. The browser will also suggest passkeys in form autofill dialogs on all platforms.
  • A new .deb package is now available for Ubuntu, Debian and Linux Mint users.
  • Firefox on older AMD CPU machines may cause thumbnails to render incorrectly. There is a suggested fix.

Firefox 122.0 download and update

Firefox 122.0 and Firefox 115.7 ESR are pushed to user devices using the built-in updating functionality of the browser.

Note: our review of the update is published before the official release. The updates will become later on the day of publication.

Once Mozilla gives the official go for the release, Firefox users may check for updates manually to install the update right away. This is done in the following way

Just select Menu > Help > About Firefox to run a check for updates. Updates found may be installed directly from the page.

Here are the official download locations:

Firefox 122.0 major changes

Address bar suggestions changes

Firefox may now show images and text descriptions of search results. The feature needs to be supported by the selected search engine.

The second suggest related change returns MDN Web Docs article suggestions when users of the browser search for web development related information.

Other changes and fixes

  • Firefox taints filters that "use currentColor as an input" to improve user privacy. Use of the filter blocks reading the filter output from canvas.
  • Firefox Translations received a fix that deals with issues that could make the content of a page disappear when translated, or break interactive widgets.
  • The macOS version of Firefox supports passkeys now, provided that iCloud Keychain is used. It supports the creation and using of passkeys.
  • Web browser compatibility in regards to line breaking is improved, as it now matches the Unicode Standard. East Asian and South East Asian users of Firefox benefit from improved word selections when double-clicking on words.

Developer changes

  • <hr> elements are now allowed as children of <select> elements. This improves the "readability of select lists with many options" according to Mozilla.
  • The CSS offset-position property is now supported by default. Several methods to define a CSS offset-path are now supported by default.
  • The CSS ray() function is now supported by default.
  • Ownership of memory may now be transferred from one ArrayBuffer to another using ArrayBuffer.prototype.transfer() and ArrayBuffer.prototype.transferToFixedLength().
  • Support for data: URLs was removed in SVG <use> elements and via SVGUseElement interface to prevent XSS attacks.
  • Firefox supports the LargestContentfulPaint API now.
  • The HTMLSelectElement.showPicker() method is now supported.
  • The fallback URL parser for unknown schemes was changed to DefaultURI.
  • Added support for the Screen Wake Lock API. This API may be used to prevent devices from dimming or locking the screen.
  • Scripts can now store cacheAPI data in Private Browsing mode. This helps the user experience in private browsing mode according to Mozilla.
  • Uneven Level Protection Forward Error Correction (ULPFEC) is enabled by default. WebRTC services may use it to improve video quality.

Firefox 122 ships with several experimental features, all disabled by default. These are:

  • Declarative shadow DOM (dom.webcomponents.shadowdom.declarative.enabled)
  • Popover API (dom.element.popover.enabled)
  • Clipboard read and write ( and
  • Intl.Segmenter (unknown)

The features need to be enabled using about:config.

Enterprise changes

Firefox 122 includes just two Enterprise changes:

  • The FirefoxHome policy was updated as the Snippets option is deprecated.
  • The Preferences policy was updated to allow setting alerts.* preferences.

Security updates / fixes

Mozilla fixed 15 unique security issues in the Firefox web browser. The aggregate severity rating is high.


Firefox 123 and Firefox ESR 115.8 will be released on February 20, 2024.

Firefox extension reviews and news

  • Streaming Enhanced promises to skip advertisement on popular streaming platforms automatically. It supports Netflix, Disney+, Prime Video and some other services already.

Recent Firefox news and tips

Additional information / resources

Closing Words

Firefox 122 is the first major release of 2024. It is a smaller release, at least in regards when it comes to major feature additions. Some users will like the new suggest feature that adds more information to search engine suggestions.

Now You: have you tried Firefox recently?

Firefox 122 is out: here is what is new
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Firefox 122 is out: here is what is new
Firefox 122 Stable is the latest version of the open source web browser. It fixes security issues and introduces several improvements.
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  1. Allwynd said on January 28, 2024 at 9:01 am

    Such an outdated, inefficient browser. I’m surprised it still exists and there are people using it. It hasn’t been good since 2007. Back then it was the most innovative and powerful browser, the leader, now it just copies everything Chrome does and even does a horrible job at that.

    1. Panda said on January 31, 2024 at 12:36 pm

      Why outdated? I’ve been using Firefox for over 10 years and it works great.

    2. ShintoPlasm said on January 30, 2024 at 9:21 pm

      One word for you: extensions.

    3. bruh said on January 30, 2024 at 1:45 pm

      I use chrome 8hrs a day at work and firefox 8hrs a day at home – you’re being ridiculous.

  2. Andreas Schamanek said on January 24, 2024 at 10:09 pm

    I wish the new repo would include ESR versions. So far there are only firefox, firefox-nightly, firefox-beta, and firefox-devedition.

  3. G said on January 24, 2024 at 10:29 am

    Bring back about:config?

    1. John G. said on January 25, 2024 at 4:49 pm

      There is no “about:config” in Firefox for Android.

    2. Anonymous said on January 24, 2024 at 6:37 pm

      It never gone?

  4. slingblade said on January 24, 2024 at 4:08 am

    “A new .deb package is now available for Ubuntu, Debian and Linux Mint users.”

    Suddenly my nipples became hard. YAY MOZILLA!

    And to hell with Ubuntu “SNAPS!”

    1. Anonymous said on January 24, 2024 at 11:15 am

      Ubuntu = Wayland + Stale (crypto mining) Proprietary Snaps – Source Code + App Armor Permissions = Android – Better Support = Major Fail. Just use Android. Arch? Mind you, F(L)ATPAK) isn’t much better – GIMP 352.76 MiB installed, 122.24 MiB download. WTF? More like BLIMP!

      1. ShintoPlasm said on January 24, 2024 at 1:28 pm


  5. ShintoPlasm said on January 23, 2024 at 5:08 pm

    Are Mozilla for real, prioritising macOS over Windows for passkey support… smh

  6. Anonymous said on January 23, 2024 at 4:13 pm

    Nice to see Firefox still going strong this year. Improvements are looking good.

    Hopefully we will get DoH support on Firefox Release on Android, with a UI to support it just like the desktop version. Or they could bring back the about:config functionality. It’s hard to rely on forks like Fennec/Mull/Iceraven when we want a stable release with the full experience. Of course Beta/Nightly are available, but they aren’t as stable.

    1. John G. said on January 24, 2024 at 10:39 am

      DoH support on Android is still a dream, despite it’s necessary as water in the desert.

  7. m3city said on January 23, 2024 at 2:10 pm

    Those last paragraphs are a nice addition I must say. At least I did not notice these sections in the previous articles in the series.

    “Recent Firefox news and tips”
    “Firefox extension reviews and news”

  8. John G. said on January 23, 2024 at 1:29 pm

    The ESR branch is the only and the best reference to keep stability and productivity on your system. It’s stronger than the normal branch one, perfect to use with online banking/shopping. :]

    1. Tom Hawack said on January 23, 2024 at 3:01 pm

      And the ESR branch 115 is the last as well to accept Windows 7 :)
      October 2024 (nine months from now) is it, that 115 ESR will provide no security updates, EOL … what then for obsessional Windows 7 users? That is the question shaking up my thoughts :)

      1. balmers rejected balls said on January 26, 2024 at 4:04 am

        I moved onto Linux (mint on old pc and fedora on new pc). Mint cinnamon actually runs better than windows 7 on my older pc. When I was using windows 7 it essentially became a grave yard/frozen in time. all apps never got updated expect for firefox. The lack of security updates made me paranoid, and installing anything new is just questioning if it’s safe. It’s time to move on.

      2. Kalmly said on January 24, 2024 at 6:25 pm

        Always enjoy your posts, Mr. Hawack. I seldom feel intimidated by threats of losing security updates for software or an Os, in this case my lovely Win7 that has provided me many years of happy computing. I know that it will become more and more troublesome to access online content and email accounts. I have purchased an ugly WIN 10 computer for certain – not all – online activity. Everything else, all my hard work and research stays with my beautiful Win 7.

      3. Jody Thornton said on January 24, 2024 at 8:11 am

        Probably Supermium. At least it’s an up to date Chromium build for Windows 7 and 8x.

      4. Andy Prough said on January 23, 2024 at 6:10 pm

        >”October 2024 (nine months from now) is it, that 115 ESR will provide no security updates, EOL … what then for obsessional Windows 7 users? That is the question shaking up my thoughts :)”

        Pale Moon should support Windows 7 for a few more years. If you want an updated browser with regular security updates and that works with nearly all websites, Pale Moon is one to look at.

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