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

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What Windows 10 end of support means for Firefox users

What Windows 10 end of support means for Firefox users

Learn how Firefox will continue supporting Windows 10 after Microsoft ends its updates, and discover the steps Mozilla recommends to keep your browsing experience secure.

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Server Not Found - Troubleshoot connection problems

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Make Firefox your default browser on Windows

Make Firefox your default browser on Windows

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Firefox Terms of Use FAQ

Firefox Terms of Use FAQ

Frequently asked questions about Firefox Terms of Use.

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