Some of what you have written I cannot understand what you are meaning to say but, sorry, I can't make sense of it. I am not a big fan of Webroot, @ all, but, that's neither here nor there, right now. To answer your query, use the OS Firewall and, no, don't add anything to it although, again, I am not sure what you mean by that. One must only use ONE software firewall @ a time in a machine; unless one is behind a router, that is acceptable, in addition to the OS firewall.
Cheers,
Drew View attachment 25881