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Featured Articles

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 10

How to change your default browser in Windows 10

Learn how to make Firefox your default browser in Windows 10.

Add-on Badges

Add-on Badges

You’ll know if an extension is being regularly reviewed if it has one of the badges listed in this article.

Customize Firefox controls, buttons and toolbars

Customize Firefox controls, buttons and toolbars

You can customize Firefox in many ways. This article explains how to customize Firefox controls, buttons and toolbars.

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