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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.

Firefox options, preferences and settings

Firefox options, preferences and settings

Settings panels give you access to Firefox settings. This article describes what types of settings are available in each panel.

Website will not allow Firefox to display the page if another site has embedded it

Website will not allow Firefox to display the page if another site has embedded it

This page explains the error: "Website will not allow Firefox to display the page if another site has embedded it"

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.