I denied access to Quicktime. How can I change it to allow access?

:THNK I denied access to Apple Quicktime in my firewall. How can I change it so that I can now allow access? Please make the answer in simple easy steps.
Thanks,
iamvera

What firewall are you using?

I am using Comodo Firewall. (:NRD)

Well there are 2 places to look under. Open up the main program(GUI) by simply clicking on the Comodo desktop shortcut. Then go to Firewall\Advanced\Network Security Policy and see what you blocked. Also go to D+\Advanced\Computer Security Policy and see what you blocked. Right click on Quicktime and make it trusted.