Check the address for typing errors such as
   ww.example.com instead of
   www.example.com
 If you are unable to load any pages, check your computer's network
   connection.
 If your computer or network is protected by a firewall or proxy, make sure
   that Firefox is permitted to access the Web.

This morning, when I clicked on a new tab, I got the message at the bottom. I never received this message before, but now it keeps coming up. I can type a URL and it goes to the site without any problems. What happened? What can I do to stop this message from appearing? Firefox can't find the server at home.brandthunder.com. Check the address for typing errors such as ww.example.com instead of www.example.com If you are unable to load any pages, check your computer's network connection. If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.