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

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Captive portal detection

Captive portal detection

Description of how Firefox detects captive portal networks.

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.

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.

Manage local site storage settings

Manage local site storage settings

Learn about local storage, how to access storage settings, remove site data or set exceptions for websites to store data in Firefox.

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