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

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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.

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.

Captive portal detection

Captive portal detection

Description of how Firefox detects captive portal networks.

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.

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