Double-click the McAfee icon.

Click the McAfee Personal Firewall icon on the left side of the SecurityCenter window.

Click View the Internet Applications List.

Select the application you wish to grant access to.
The Application Details box lists the information about the application and its current access permissions

You may now select one of the following access permissions under Change permission to..:

Allow Full Access
This allows the application full unrestricted access to the Internet.

Outbound Access Only
This allows the application to only send information. It will not be able to receive any incoming data.

Block This Application
This will restrict any and all access to the Internet for this application.