Firewall program control not working

Google chrome will not connect to internet, unless I turn off smart firewall

I go to settings/firewall/programs and the program tab is grayed out

Last time I went through this exercise I had to uninstall Norton 360, use the removal tool, and reinstall.

Why do I have to do this again?

Is there a way to fix Norton without the aggravation of removing it?

thanks

BTW, I have to turn off firewall to connect to "gotomeeting"