ESS 4.0.417.0 blocking Chatzilla

[x64]

Noticed that 4.0.417 is blocking Chatzilla (IRC app) despite the fact that this application is a part of Firefox witch is set as Allowed in firewall settings. Is there a way to fix this?

[tomi]

Hello,

Chatzilla is a Firefox plugin, but it communicates through port 6667. So if you have this port blocked in Firewall, please allow it.

[x64]

Well it is not blocked. I have set the firewall to allow firefox to use every port or IP address

The firewall log says Detected DNS cache poisoning attack when I open Chatzilla???