Allow messenger but bock facebook

Question

Hi All 
 I just need some help regarding allowing Messenger chat and call but block facebook website or app. 
 I've seen threads from couple of years ago but the images regarding application rules were inaccessible 
 Hope you can help me on this. 
 
 Thanks

Erick Jan · Answer

Hi Eugene, 
 Kindly create an application control policy to block Facebook applications and also create a web filter. 
 Create an allow policy for Messenger and another one for blocking Facebook, and attach it to the firewall rule allow and block. 
 Check the log viewer to adjust the exceptions. 
 See the links below for reference. 
 
 Block applications using the application filter 
 Sophos Firewall: Allow/block websites using custom categories and/or URL groups 
 How can I block Facebook Messenger? 
 How to block Facebook and allow only Messenger?