Here are the ports used by Firefall.
In-game Auth/Login: 80/tcp
Game data: 25000-25099/udp, and 32000-65535/udp
If using the information on Firefall Ports for QOS priority by ports, I recommend setting the game data ports to highest priority. How you prioritize the in-game auth and chat is up to you. For more information about using these ports to improve Firefall’s network performance, please see this article.