Norton 360 computer 192.168.X.X is attempting to access google chrome on your comptuer

Norton 360 pop up states,' the computer 192.168.X.X is trying to access google chrome. do you want to allow this connection?' I blocked the connection using "always for this connection". I didn't see the message again but I don't understand what that message was and why I saw it in the first place. Does this message mean a threat on my device? I'm a mac user.