Mozilla Firefox 102 was released today with a new **privacy feature that strips parameters from URLs that are used to track you around the web.**
Numerous companies, including Facebook, Marketo, Olytics, and HubSpot, utilize custom URL query parameters to track clicks on links.
With the release of Firefox 102, Mozilla has added the new **'Query Parameter Stripping'** feature that automatically strips various query parameters used for tracking from URLs when you open them, whether that be by clicking on a link or simply pasting the URL into the address bar.
* Tired of too many windows crowding your screen? You can now disable automatic opening of the download panel every time a new download starts. [Read more](https://support.mozilla.org/en-US/kb/manage-downloads-preferences-using-downloads-menu#w_downloads-panel-automatically-opens).
* Firefox now mitigates query parameter tracking when navigating sites in ETP strict mode.
* Subtitles and captions for Picture-in-Picture (PiP) are now available at HBO Max, Funimation, Dailymotion, Tubi, Disney+ Hotstar, and SonyLIV. This allows you to view video in a small window pinned to a corner of the screen while navigating between apps or browsing content on the main screen.
* When using a screen reader on Windows, pressing enter to activate an element no longer fails or clicks the wrong element and/or another application window. For those blind or with very limited vision, this technology reads out loud what is on the screen, and users can adapt them to their needs (now, on our platform, without errors).
* Various [security](https://www.mozilla.org/security/advisories/mfsa2022-24/) fixes.
* Improved security by moving audio decoding into a [separate process with stricter sandboxing](https://bugzilla.mozilla.org/show_bug.cgi?id=1722051), thus improving process isolation.
* 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 102 Release Notes](https://support.mozilla.org/kb/firefox-enterprise-102-release-notes).
* Firefox 102 is the new Extended Support Release (ESR). Firefox 91 ESR goes out of support on September 20, 2022. (See the [102 ESR release notes](https://www.mozilla.org/en-US/firefox/102.0esr/releasenotes/) for more information)
You can now filter style sheets in the Style Editor tab of our developer tools
* TransformStream and ReadableStream.pipeThrough have landed, allowing you to pipe from a ReadableStream to a WritableStream, executing a transformation on each chunk.
* ReadableStream, TransformStream, and WritableStream are all transferable now.
* Firefox now supports Content-Security-Policy (CSP) integration with WebAssembly. A document with a CSP that restricts scripts will no longer execute WebAssembly unless the policy uses 'unsafe-eval' or the new 'wasm-unsafe-eval' keyword.
> What's new in Firefox for Android
Welcome to a new version of Firefox for Android (version 102). In this release, you will find the following updates:
Sponsored shortcuts on your Android homepage
We're working on new ways to financially support our mission, including new sponsored shortcuts on the homepage. > >
> Today’s release of Total Cookie Protection is the result of experimentation and feature testing, first in ETP Strict Mode and Private Browsing windows, then in Firefox Focus earlier this year. We’re now making it a default feature for all Firefox desktop users worldwide.
**Version 100.0, first offered to Release channel users on May 3, 2022**
Thank you to everyone who got us here: To every employee past and present who played a role in delivering Firefox—thank you for your grit and hard work. To every contributor who championed open source, thank you for turning a browser into a movement!
Finally, thanks to every user of Firefox—thank you most of all. We didn’t get here—17 years and 100 versions later—without your support. Your choice to use Firefox contributes directly to a better web, keeping it open and accessible to all. It is with a profound sense of gratitude and appreciation that we will continue fighting for this global public resource, putting people over profits.
* We now support 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](https://support.mozilla.org/en-US/kb/about-picture-picture-firefox) now also supports video captions on websites that use WebVTT (Web Video Text Track) format, like Coursera.org, Canadian Broadcasting Corporation, and many more.
* 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.
* [Firefox spell checking](https://support.mozilla.org/en-US/kb/how-do-i-use-firefox-spell-checker) now checks spelling in multiple languages. To enable additional languages, select them in the text field’s context menu.
* 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](https://www.microsoft.com/en-us/p/av1-video-extension/9mvzqvxjbq9v?activetab=pivot:overviewtab) 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](https://jrmuizel.github.io/twitch/volume.htmlhttps://jrmuizel.github.io/twitch/volume.html).
* Scrollbars on Linux and Windows 11 won't take space by default. On Linux, users can change this in Settings. On Windows, Firefox follows the system setting (System Settings > Accessibility > Visual Effects > Always show scrollbars).
* Firefox now supports [credit card autofill](https://support.mozilla.org/en-US/kb/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.
* 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.
* Beginning in this release, the Firefox installer for Windows is signed with a SHA-256 digest, rather than SHA-1. Update KB4474419 is required for successful installation on a computer running Microsoft Windows 7. For more details about this update, visit the [Microsoft Technical Support website](https://support.microsoft.com/en-us/help/4474419/sha-2-code-signing-support-update).
* In macOS 11+ we now only rasterize 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.
* Various [security](https://www.mozilla.org/security/advisories/mfsa2022-16/) fixes.
* 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.
* New users can now set Firefox as the default PDF handler when setting Firefox as their default browser.
* Some websites might not work correctly in Firefox version 100 due to Firefox's new three-digit number. You can read about it in our blog post [here](https://hacks.mozilla.org/2022/02/version-100-in-chrome-and-firefox/)!
See the Mozilla Support [article](https://support.mozilla.org/kb/difficulties-opening-or-using-website-firefox-100) Difficulties opening or using a website in Firefox 100 for possible workarounds you can use. There, you will also find instructions for reporting a broken website so that Mozilla can help fix the problem.
Mozilla Support articles for Desktop and Android:
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 100 Release Notes](https://support.mozilla.org/kb/firefox-enterprise-100-release-notes).
* Support for the WritableStream API has landed. WritableStreams provide an interface for writing streaming data to a sink object.
* Additionally, ReadableStream gained support for the “pipeTo” method, which allows you to connect a ReadableStream to a WritableStream. For example, this would allow you to process data retrieved using “fetch” with the WritableStream Sink object.
> Beginning in this release, the Firefox installer for Windows is signed with a SHA-256 digest, rather than SHA-1. Update KB4474419 is required for successful installation on a computer running the Microsoft Windows 7 operating system. For more details about this update, visit the Microsoft Technical Support website.