If you don't feel like checking the server info, and can't be bothered to remember which number goes with what (I forget if 0 or 1 means it's disabled?), here is a simple solution: before joining a team, ask in allchat if ff is on or off. Usually, you'll get a crapload of answers that indicate if it is.
Under no circumstances start shooting/pouncing your teammates wildly with no regard for what's currently happening in the battle around you, then type in caps "OMFG im so sry dude, i didnt kno ff was on1" (Trust me, I've learned this from experience! Admins apparently don't appreciate it.)