Firefox 102: new ESR base and improved safety

Firefox 102 and Firefox 102 ESR will likely be launched later at the moment. The brand new model of Mozilla’s Firefox internet browser improves safety, picture-in-picture mode, and is the brand new base for the Prolonged Help Launch channel.

All Firefox growth channels obtain updates on the identical day. Firefox Beta and Firefox Developer editions transfer to model 103 and Firefox Nightly strikes to model 104. Firefox for Android follows the model of the secure channel, which implies that it’s moved to model 102 as properly.

Govt Abstract

  • Firefox 102 ESR is the brand new base. Firefox 91.x ESR will stay accessible for the following couple of releases earlier than it’s retired on September 20, 2022.
  • Audio decoding is moved to its personal course of with stricter sandboxing.
  • Firefox mitigates URL question parameters used for monitoring in strict Monitoring Safety mode.

Firefox 102 obtain and replace

Firefox 102 and all different variations launched at the moment are delivered by way of the browser’s automated replace characteristic to most gadgets. The replace might not but be accessible, if you’re studying this on the day of launch.

Direct downloads are additionally accessible, observe the hyperlinks beneath to Mozilla’s obtain web site, to obtain the brand new model of the browser.

Firefox 102.0 new options and enhancements

Question Parameter Stripping

firefox strict tracking protection

Firefox removes parameters from URLs routinely when these could also be used to establish and observe customers. The elimination shouldn’t influence the loading of the goal deal with.

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Beginning in Firefox 102, a blocklist is used to strip recognized monitoring parameters from top-level URLs.

The characteristic is enabled within the browser’s personal searching mode and when Firefox’s Enhanced Monitoring Safety characteristic is about to strict.

Do the next to allow strict Monitoring Safety:

  1. Load about:preferences#privateness within the Firefox deal with bar.
  2. Change Enhanced Monitoring Safety from Customary to Strict.

Cover the obtain panel

firefox hide download panel

Firefox shows the obtain panel at any time when a brand new obtain begins. Some might dislike this, and these customers might now disable the automated opening of the obtain panel.

To try this, right-click on the obtain icon and choose “Present Panel when Obtain Begins” to toggle the performance. In case you see no checkmark in entrance of it, Firefox will not show the obtain panel.

Different adjustments

  • Audio decoding occurs in its personal course of now, which improves safety via stricter sandboxing.
  • Image-in-Image mode helps subtitles and captions on HBO Max, Funimation, Dailymotion, Tubi, Disney+ Hotstar, and SonyLIV.
  • Urgent Enter whereas utilizing a Display Reader on Home windows now not prompts the improper aspect and/or one other window.


  • The replace media characteristic is now enabled by default.
  • The property Window.sidebar is managed by a choice, as it will likely be eliminated in a future model.
  • The interfaces IDBMutableFile, IDBFileHandle, IDBFileRequest and the strategy IDBDatabase.createMutableFile() have been disabled by default in preparation for elimination in a future model.
  • Rework streams are supported by Firefox.
  • Readable byte streams are supported.
  • Add-on builders might use the scripting API, “which gives options to execute script, insert and take away CSS, and handle the registration of content material scripts”, in Manifest V2 extensions.
  • Manifest V3 extensions have to specify the wasm-unsafe-eval to make use of WebAssembly.  Firefox helps Content material-Safety-Coverage integration with WebAssembly.
  • The nonPersistentCookie choice of the privateness.web sites cookieConfig property is deprecated.

Enterprise adjustments

Two new insurance policies added:

  • UseSystemPrintDialog instructions Firefox to make use of the system’s print dialog. It has the identical impact as setting the choice print.prefer_system_dialog to true.
  • ExemptDomainFileTypePairsFromFileTypeDownloadWarnings defines file varieties for which warnings are eliminated when they’re downloaded.

Mozilla mounted a problem that prompted a bug in Misleading Content material and Harmful Software program Safety insurance policies. Locking the insurance policies didn’t disable the about:preferences person interface.

Recognized Points

none listed.

Safety updates / fixes

Safety updates are revealed after the official launch of the online browser. You discover the data printed right here after launch.


Firefox 103 will likely be launched on July 26, 2022.

Firefox extension opinions and information

Latest Firefox information and suggestions

Extra info / sources


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