I was changing the screen saver and clicked block in McAfee instead of allow this program. Now only a white screen appear which would not let me connect to firefox. It says, "Cannot find server" everytime I try to connect.
I Clicked in Configuring McAfee Internet Security, but it was not helpful because my McAfee interface is completely different. I really can't find Program Permissions in my McAfee Security Center. I'm sending a print, it's version 11.0 compilance 11.0.586 portuguese.