Metasploit and IP's/Port Forwarding

I forwarded my port to be able to start a metasploit meterpreter session with a computer at a friend's house. I checked this with a site and it confirmed that my port was forwarded. When I type my IP and port in the URL it automatically starts a download but nothing else happens.(only a white screen). Does anyone know if this is still enough to start such a meterpreter session as said before or do I need to be able to acces my computer with my IP and port.