Comodo V4 Firewall shows a hundred of TCP connections of Firefox

It looks so strange that even when I open one webpage, it shows a lot (~100) of TCP outbound connections of Firefox, most of them only have different source TCP ports and have very little traffic rate (64B).

I feel very surprise of the large amount of connection number, have you ever met similar issue? It may be an implementation issue of Firefox, or the connection calculation issue (old connections?) of Comodo.

CIS tends to list already closed connections as well in Active Connections. I believe it’s not ‘refreshed’ in real-time just like the Traffic.