Using Filter Chrome to block Facebook:
Block or Limit the Facebook App from using Filter Chrome:
- Tap on Block a domain and enter facebook.com to be blocked
- Tap on Installed Apps, then set Facebook to be Blocked or add a Daily Limit
Note: If Prevent Removal is enabled, then then if Facebook is blocked, it can't be unblocked until a Token is requested - Learn about Filter Chrome's Unique Token System.