I have just installed Kali Linux 2.0 2006.1. I am using the preloaded Metasploit framework in kali 2016.1. After starting the metasploit, i am unable to connect to the web. This is the error that I got;

Iceweasel can't establish a connection to the server at https//localhost:3790.

The site could be temporarily unavailable or too busy. Try again in a few moments.
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 Iceweasel is permitted to access the Web.

Please i need your help and suggestion. I have been on this for more than a week now