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Featured Articles

Captive portal detection

Captive portal detection

Page that describes how Firefox detects captive portal networks.

Firefox can't load websites but other browsers can

Firefox can't load websites but other browsers can

We'll explain errors such as "Server not found" or "Unable to connect" and how to fix problems where Firefox can't access websites but other browsers can.

Secure connection failed and Firefox did not connect

Secure connection failed and Firefox did not connect

If a website requires a secure connection that cannot be established, Firefox will not connect and will show you an error page. Learn more.

How to change your default browser in Windows

How to change your default browser in Windows

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

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