Hi! I've been trying to block the Facebook app on mobile phones and allow Facebook Messenger by using Layer 7 and Content filtering rules but unfortunately the Facebook app still goes through however, it is already blocked on the web browser. Facebook Messenger app is also blocked but I want it to be allowed through. I've already tried to put some of the known URLs of Facebook on the black list and Facebook Messenger on the white list but nothing works.   Anybody who has been successful in doing this setup?   Thanks a lot! ... View more