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
Page that describes how Firefox detects captive portal networks.
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.
If a website requires a secure connection that cannot be established, Firefox will not connect and will show you an error page. Learn more.
Learn how to make Firefox your default Web browser on Windows 10 and Windows 11.