Mozilla Firefox 98.0: here’s what’s new


Mozilla released Firefox 98.0 Stable and Firefox 91.7.0 ESR on March 8, 2022. Firefox 98 gets the new download experience among other changes.

All Firefox channels are updated around the same time. Firefox Beta and Developer are moved to version 99.0, Firefox Nightly is upgraded to version 100.0, and Firefox for Android is also moved to version 98.0.


  • Firefox 98.0 and Firefox 91.7 ESR address security issues.
  • The new download behavior is enabled in the release. Note: “Always ask” download actions will be reset.
  • Some Firefox users may have their selected default search engine removed from the browser.

Firefox 98.0 download and update

Firefox 98.0

The release date for Firefox 98.0 is March 8, 2022. Mozilla is rolling out the update to all systems on that day. Firefox’s built-in update system should automatically pick up the new version once it’s released (which may happen sometime after this release guide is published).

Firefox users can check the current version and run a manual check for updates on all desktop systems by selecting Menu > Help > About Firefox. Updates found during the check will be downloaded and installed on the local system.

Here are the links to the official download repositories.

New features and improvements in Firefox 98.0

New download stream

firefox download behavior

The main new feature of Firefox 98 is the new browser download stream. The main difference between the old download behavior and the new is that Firefox no longer prompts users when downloads begin. Firefox will start downloading immediately, similar to how Chromium-based browsers handle it. You can check out our guide on restoring download prompts in Firefox.

Here are the main changes:

  • The downloads panel appears automatically in Firefox 98 by default.
  • Downloads can be opened while they are downloading. They are started immediately after the download is complete.
  • File downloads are no longer placed in the system temporary folder.
  • The downloads menu displays the following options: always open similar files, view in folder, go to downloads page, copy download link, delete, delete from history, and clear preview panel.

Some Firefox users may prefer to display download prompts, and Firefox offers two options for this. The first enables prompts for specific file types.

  1. Load about:preferences in the Firefox address bar.
  2. Scroll down to the application group.
  3. Use the filter at the top to find a file type.
  4. Double-click its action field to toggle the action to “always ask”.

Firefox will display a prompt each time a file of the selected file type is downloaded.

The second option is on the same page. Locate the Downloads section on the page and change the Downloads option from “save files to” to “always ask you where to save files”.

Other Changes

  • Firefox may remove default search engines from some user systems; this is only the case if Mozilla has not received formal permission from search engine operators to include their search engine in Firefox.

Developer Changes

  • The HTML element is now enabled by default.
  • navigator.registerProtocolHandler() supports registering protocol handlers for FTP, SFTP, and FTPS.
  • HTMLElement.outerText is supported.
  • The WebVR API is disabled by default as it is deprecated.
  • Extensions that use webReqest are no longer launched earlier when starting Firefox, unless they use blocking calls.
  • userScripts.register supports cookieStoreId. Extensions can use it to register container-specific user scripts.

Company changes

  • PKG for macOS reported that it does not support M1. This is fixed in Firefox 98 and will soon be fixed in Firefox ESR as well.
  • Some Outlook Web Access configuration fields were not working correctly. This is fixed in Firefox 98, ESR coming soon.
  • PDFjs policy can now be used to disable PDF permissions.
  • The WebsiteFilter policy was not correctly blocking web pages displayed after a 301 or 302 redirect.
  • UserMessaging policy now supports removing “more from Mozilla” in preferences.

Known issues

None listed.

Security updates/patches

Security updates are revealed after the official release of the web browser. You find the information published here after release.


Mozilla Firefox 99 and Mozilla Firefox 91.8.0 ESR will be released on April 5, 2022. This is the last stable version of Firefox before version 100 is reached.

Recently reviewed Firefox extensions

Recent Firefox news and tips

Additional information/sources


Mozilla Firefox 98.0: here's what's new

Article name

Mozilla Firefox 98.0: here’s what’s new

The description

Mozilla released Firefox 98.0 Stable and Firefox 91.7.0 ESR on March 8, 2022. Firefox 98 gets the new download experience among other changes.


Martin Brinkman


Ghacks Technology News




Comments are closed.