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How to change your default browser in Windows
Learn how to make Firefox your default Web browser on Windows 10 and Windows 11.
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.
Update Firefox to the latest release
Firefox automatically updates itself by default but you can always do a manual update. Learn how to update Firefox on Windows, Mac or Linux.
Captive portal detection
Page that describes how Firefox detects captive portal networks.
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