Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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Firefox ESR release cycle

Firefox ESR release cycle

Firefox offers an Extended Support Release (ESR) based on a regular release of Firefox for desktop for use by organizations. Learn more.

Customize Firefox using Group Policy (Windows)

Customize Firefox using Group Policy (Windows)

Firefox supports setting policies via Active Directory as well as using Local Group Policy.

Legacy browser support extension for Windows

Legacy browser support extension for Windows

Add-ons and older versions of Firefox ESR may enable your users to run legacy add-ons and view websites that require Internet Explorer.

Deploy Firefox on macOS using PKG and Jamf

Deploy Firefox on macOS using PKG and Jamf

Learn how to deploy Firefox on macOS using pkg and Jamf