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

Captive portal detection

Captive portal detection

Description of how Firefox detects captive portal networks.

Insecure connection password warning in Firefox

Insecure connection password warning in Firefox

Firefox will show you a "connection is not secure" warning message when a website login page is insecure and information could be stolen.

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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