When I googled this it said that the cause was the firewall, so I checked my windows firewall , then tried relogging and I still couldn't get in so I went to webroot and allowed ALL processes to connect which I really don't like. THEN I was able to get in. I TRIED looking for the file to put it in to allow FF to play, but I could NOT find any file, couldn't even find anything that said square enix, and I KNOW they're on my PC. I looked under programs, downloads in windows. I'm lost, I'm NOT a computer nerd, I do good just being able to download stuff. IF I know what to look for or where I can usually find it, but I'm stumped!