[Changelog] What’s New in Mozilla Firefox 100 and Later Versions

In this exclusive changelog article, we are providing information about all versions of Mozilla Firefox web browser released after version 100.0 to public. You’ll find the release date and what’s new in each version of Mozilla Firefox browser.

Mozilla Firefox is a popular web browser available for Windows, Linux and Mac operating systems. You can download the latest version of Mozilla Firefox from following article:

Download Mozilla Firefox Latest Version

For your convenience, in this version history article, we’ll list all changes, fixes, improvements and new features found in all versions of Mozilla Firefox browser (version 100 and later).

Read changelog of older versions: [Changelog] What’s New in Mozilla Firefox 90 and Later Versions

What’s New in Mozilla Firefox 100.0?

Mozilla Firefox 100.0 version was released on May 03, 2022. It came with following new features, changes, fixes and improvements:

• The Firefox installer for Windows is now signed with a SHA-256 digest, rather than previous SHA-1. If you are planning to use Firefox setup installer on a Windows 7 computer, you’ll need to install KB4474419 update. (How-to Guide)
• Scrollbars on Linux and Windows 11 won’t take space by default i.e. will remain invisible. On Linux, users can change this in Settings. On Windows 10 and 11, you’ll need to enable scrollbars using “Settings app -> Accessibility -> Visual Effects -> Always show scrollbars” option as mentioned here.
• New users can now set Firefox as the default PDF handler when setting Firefox as their default browser.
• Firefox has a new focus indicator for links which replaces the old dotted outline with a solid blue outline. This change unifies the focus indicators across form fields and links, which makes it easier to identify the focused link, especially for users with low vision. (How-to Restore Dotted Outline)
• Users can now choose preferred color schemes for websites. Theme authors can now make better decisions about which color scheme Firefox uses for menus. Web content appearance can now be changed in Settings. (How-to Guide)
• Firefox spell checking now checks spelling in multiple languages. To enable additional languages, select them in the text field’s context menu.
• Firefox now supports captions/subtitles display on YouTube, Prime Video, and Netflix videos you watch in Picture-in-Picture. Just turn on the subtitles on the in-page video player, and they will appear in PiP.
• Picture-in-Picture now also supports video captions on websites that use WebVTT (Web Video Text Track) format.
• On the first run after install, Firefox detects when its language does not match the operating system language and offers the user a choice between the two languages.
• HDR video is now supported in Firefox on Mac – starting with YouTube! Firefox users on macOS 11+ (with HDR-compatible screens) can enjoy higher-fidelity video content. No need to manually flip any preferences to turn HDR video support on – just make sure battery preferences are NOT set to “optimize video streaming while on battery”.
• Hardware accelerated AV1 video decoding is enabled on Windows with supported GPUs (Intel Gen 11+, AMD RDNA 2 Excluding Navi 24, GeForce 30). Installing the AV1 Video Extension from the Microsoft Store may also be required.
• Video overlay is enabled on Windows for Intel GPUs, reducing power usage during video playback.
• Improved fairness between painting and handling other events. This noticeably improves the performance of the volume slider on Twitch.
• Firefox now supports credit card autofill and capture in the United Kingdom.
• Firefox now ignores less restricted referrer policies – including unsafe-url, no-referrer-when-downgrade, and origin-when-cross-origin – for cross-site subresource/iframe requests to prevent privacy leaks from the referrer.
• In macOS 11+ Firefox now only rasterizes the fonts once per window. This means that opening a new tab is fast, and switching tabs in the same window is also fast. (There’s still work to do to share fonts across windows, or to reduce the time it takes to initialize these fonts.)
• The performance of deeply-nested display: grid elements is greatly improved.
• Support for profiling multiple java threads has been added.
• Soft-reloading a web page will no longer cause revalidation for all resources.
• Non-vsync tasks are given more time to run, which improves behavior on Google docs and Twitch.
• Geckoview APIs have been added to control the start/stop time of capturing a profile.
• Some websites might not work correctly in Firefox version 100 due to Firefox’s new three-digit number. (How-to Fix Guide)
• Security fixes
• Various bug fixes and improvements
• New group policies implemented
• Developer improvements

What’s New in Mozilla Firefox 101.0?

Mozilla Firefox 101.0 version was released on May 31, 2022. It came with following new features, changes, fixes and improvements:

• New preference/flag available to restore classic system print preview dialog box again (How-to Guide)
• Reading is now easier with the prefers-contrast media query, which allows sites to detect if the user has requested that web content is presented with a higher (or lower) contrast.
• All non-configured MIME types can now be assigned a custom action upon download completion.
• Firefox now allows users to use as many microphones as you want, at the same time, during video conferencing. The benefit is that you can easily switch your microphones at any time (if your conferencing service provider enables this flexibility).
• Security fixes
• Various bug fixes and improvements
• New group policies implemented
• Developer improvements

What’s New in Mozilla Firefox 102.0?

Mozilla Firefox 102.0 version was released on June 28, 2022. It came with following new features, changes, fixes and improvements:

• Now you can force Firefox to start downloads in TEMP folder again like previous versions. (How-to Guide)
• Now you can disable automatic opening of the Download Panel by right-clicking on the Downloads icon in toolbar and unchecking “Show Panel When Download Begins” option.
• Firefox now mitigates query parameter tracking when navigating sites in ETP (Enhanced Tracking Protection) strict mode.
• Improved security by moving audio decoding into a separate process with stricter sandboxing, thus improving process isolation.
• Security fixes
• Various bug fixes and improvements
• New group policies implemented
• Developer improvements

What’s New in Mozilla Firefox 103.0?

Mozilla Firefox 103.0 version was released on July 26, 2022. It came with following new features, changes, fixes and improvements:

• Buttons in the Tabs toolbar can now be reached with Tab, Shift+Tab, and Arrow keys. (How-to Restore Guide)
• The “Make text bigger” accessibility setting in Windows now affects all the UI and content pages, rather than only applying to system font sizes. (How-to Fix Guide)
• You can now change subtitles font size directly from the PiP (Picture-in-Picture) window.
• You can now conveniently access Firefox, which will now be pinned to the Windows taskbar during installation on Windows 10 and Windows 11.
• Required fields are now highlighted in PDF forms.
• Improved responsiveness on macOS during periods of high CPU load by switching to a modern lock API.
• Improved performance on high-refresh rate monitors (120Hz+).
• Removed a configuration option to allow SHA-1 signatures in certificates are now not supported.
• Security fixes
• Various bug fixes and improvements
• New group policies implemented
• Developer improvements

What’s New in Mozilla Firefox 104.0?

Mozilla Firefox 104.0 version was released on August 23, 2022. It came with following new features, changes, fixes and improvements:

• New dedicated Extensions menu button can be added to the toolbar (How-to Enable guide)
• Subtitles are now available for Disney+ in Picture-in-Picture.
• Firefox now supports both the scroll-snap-stop property as well as re-snapping. You can use the scroll-snap-stop property’s always and normal values to specify whether or not to pass the snap points, even when scrolling fast. Re-snapping tries to keep the last snap position after any content/layout changes.
• The Firefox profiler can analyze power usage of a website (Apple M1 and Windows 11 only).
• The Firefox UI itself will now be throttled for performance and battery usage when minimized or occluded, in the same way background tabs are.
• Highlight color is now preserved correctly after typing Enter in the mail composer of Yahoo Mail and Outlook.
• After bypassing the https only error page navigating back would take you to the error page that was previously dismissed. Back now takes you to the previous site that was visited.
• Paste unformatted shortcut (shift+ctrl/cmd+v) now works in plain text contexts, such as input and text area.
• Security fixes
• Various bug fixes and improvements
• New group policies implemented
• Developer improvements

What’s New in Mozilla Firefox 105.0?

Mozilla Firefox 105.0 version was released on September 20, 2022. It came with following new features, changes, fixes and improvements:

• Added an option to print only the current page from the print preview dialog.
• Firefox now supports partitioned service workers in third-party contexts. You can register service workers in a third-party iframe and it will be partitioned under the top-level domain.
• Swipe to navigate (two fingers on a touchpad swiped left or right to perform history back or forward) on Windows is now enabled.
• Firefox is now compliant with the User Timing L3 specification, which adds additional optional arguments to the performance.mark and performance.measure methods to provide custom start times, end times, duration, and attached details.
• Searching in large lists for individual items is now 2x faster. This performance enhancement replaces array.includes and array.indexOf with an optimized SIMD version.
• Stability on Windows is significantly improved as Firefox handles low-memory situations much better.
• Touchpad scrolling on macOS was made more accessible by reducing unintended diagonal scrolling opposite of the intended scroll axis.
• Firefox is less likely to run out of memory on Linux and performs more efficiently for the rest of the system when memory runs low.
• Security fixes
• Various bug fixes and improvements
• New group policies implemented
• Developer improvements

What’s New in Mozilla Firefox 106.0?

Mozilla Firefox 106.0 version was released on October 18, 2022. It came with following new features, changes, fixes and improvements:

• Firefox View: A pinned tab allows you to find and open recently closed tabs on your current device, access tabs from other devices and change the look of the browser (with Colorways). (How-to Remove Guide)
• The tabs search (drop-down arrow button) is now always visible in Firefox title bar (How-to Remove Guide)
• Private browsing windows have been redesigned to increase the feeling of privacy. Dark mode is enabled by default. (How-to Restore Classic UI)
• Now private browsing windows use separate Taskbar icon and you can pin private windows to Taskbar in Windows 10 and Windows 11. (How-to Disable Guide)
• You can now edit PDFs: including writing text, drawing, and adding signatures.
• Setting Firefox as your default browser now also makes it the default PDF application on Windows systems.
• Swipe-to-navigate (two fingers on a touchpad swiped left or right to perform history back or forward) now works for Linux users on Wayland.
• Text Recognition in images allows users on macOS 10.15 and higher to copy or extract text from the selected image (such as a meme or screenshot). Extracted text is copied to the clipboard in order to share, store, or search without needing to manually retype everything. This feature is compatible with “VoiceOver,” the built-in macOS screen reader. (How-to Disable Guide)
• With the launch of the “Independent Voices” collection, Firefox is introducing 18 new “Colorways” themes. You can now access a “Colorways” modal experience via “Firefox View”. The collection will be available through Jan 16. (How-to Remove Guide)
• Security fixes
• Various bug fixes and improvements
• New group policies implemented
• Developer improvements

What’s New in Mozilla Firefox 107.0?

Mozilla Firefox 107.0 version was released on November 15, 2022. It came with following new features, changes, fixes and improvements:

• Improved the performance of the instance when Microsoft’s IME and Defender retrieve the URL of a focused document in Windows 11 version 22H2.
• Power profiling – visualizing performance data recorded from web browsers – is now also supported on Linux and Mac with Intel CPUs, in addition to Windows 11 and Apple Silicon.
• Security fixes
• Various bug fixes and improvements
• New group policies implemented
• Developer improvements

What’s New in Mozilla Firefox 108.0?

Mozilla Firefox 108.0 version was released on December 13, 2022. It came with following new features, changes, fixes and improvements:

• Processes used for background tabs now use efficiency mode on Windows 11 to limit resource use.
• The Shift+Esc keyboard shortcut now opens the Process Manager, offering a way to quickly identify processes that are using too many resources.
• Import maps, which allow web pages to control the behavior of JavaScript imports, are now enabled by default.
• Improved frame scheduling when under load; this substantially improves Firefox’s MotionMark scores.
• Security fixes
• Various bug fixes and improvements
• New group policies implemented
• Developer improvements

What’s New in Mozilla Firefox 109.0?

Mozilla Firefox 109.0 version was released on January 17, 2023. It came with following new features, changes, fixes and improvements:

• New “Extensions” button added to toolbar to manage installed extensions. (How-to Remove Guide)
• On macOS, Ctrl or Cmd + trackpad or mouse wheel now scrolls the page instead of zooming. (How-to Restore Guide)
• The Recently Closed section of Firefox View now equips users with the ability to manually close/remove url links from the list.
• Manifest Version 3 (MV3) extension support is now enabled by default. MV2 extensions will remain enabled and supported.
• Effective on January 16, Colorways themes will no longer be in Firefox. Users will still be able to access saved and active Colorways from the Add-ons and themes menu option.
• The Arbitrary Code Guard exploit protection has been enabled in media playback utility processes, improving security for Windows users.
• The native HTML date picker for date and datetime inputs can now be used with a keyboard alone, improving its accessibility for screen reader users.
• Users with limited mobility can also now use common keyboard shortcuts to navigate the calendar grid and month selection spinners.
• Firefox builds in the Spanish from Spain (es-ES) and Spanish from Argentina (es-AR) locales now come with a built-in dictionary for the Firefox spellchecker.
• The empty state messages and graphic components surfaced in Firefox View for the Tab Pickup and Recently Closed sections have been updated for an improved user experience.
• Security fixes
• Various bug fixes and improvements
• New group policies implemented
• Developer improvements

Read changelog of newer versions of Mozilla Firefox web browser:

[Changelog] What’s New in Mozilla Firefox 110 and Later Versions

[Changelog] What’s New in Mozilla Firefox 120 and Later Versions

Also Check:

Download Mozilla Firefox Offline Installer

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