Third party Facebook scripts are blocked to prevent you from being tracked, but are now automatically loaded 'just in time' if you decide to 'Log in with Facebook' on any website. Version 2 of Firefox's SmartBlock feature further improves private browsing.Firefox for Windows now offers a new page about:third-party to help identify compatibility issues caused by third-party applications.On Windows, updates can now be applied in the background while Firefox is not running.

Firefox now supports logging into Microsoft, work, and school accounts using Windows single sign-on.

For more information, see the Firefox 89 release notes.

Firefox 91 ESR includes all of the enhancements since Firefox 78 along with many new features to make your enterprise deployments easier and even more flexible.

Get rapid releases to make sure you get the latest features faster, or go extended to ensure a super stable experience. With install packages and a wide expansion of group policies and features, deployment is faster and more flexible than ever - and a breeze in Windows and macOS environments. The Firefox browser is open source, provides Enhanced Tracking Protection and soon will support DNS over HTTPS - all part of our longstanding commitment to data protection. Get the Firefox Extended Support Release or Rapid Release browser for comprehensive data security and data protection.

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