Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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About Add-on Badges

About Add-on Badges

You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.

Make Firefox your default browser on Windows

Make Firefox your default browser on Windows

Learn how to make Firefox your default Web browser on Windows 10 and Windows 11.

Troubleshoot time-related errors on secure websites

Troubleshoot time-related errors on secure websites

Learn why you might see time-related errors on HTTPS websites and how you can troubleshoot these errors by correcting your system clock.

Fix error “Website will not allow Firefox to display the page.”

Fix error “Website will not allow Firefox to display the page.”

Learn why Firefox may block a page embedded by another site, and what you can do to open it.

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