I suggest you open a thread with that problem to see if someone using Comodo says something to you, I haven't had that problem. Only when I use the sanbox does not allow copy and paste into wordpad.
This setup may cause performance issues, system instability or conflicts between programs, and can hinder the effectiveness of all installed antivirus products.
You can set Chrome to block all third party cookies. Some say, it breaks some sites for them but that's highly unlikely. I personally never had to enable third party cookies for any site. Alternately you can install the Privacy Badger extension. It's not based on any filter list. It learns as you browse the web and block any cookies that tracks you.i still get 3 tracking cookies daily.