Firefox Support

Topics

Explore the knowledge base.

Still need help?

We’re here for you. Post a question to our support forums and get answers from our community of experts.

Ask the Community

Featured Articles

Install Firefox on Linux

Install Firefox on Linux

This article describes how to download and install Firefox on Linux.

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.

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.

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.

Illustration of community

Join Our Community

Grow and share your expertise with others. Answer questions and improve our knowledge base.

Learn More