How To Block Facebook Messenger from Accessing Your Contacts
By tomsguideUS See all their Tutorials
When you first install the Facebook app on your Android phone, it asks you to synchronize the app with your contacts.
Although enabling synchronization is a good idea in order to become available to all of your friends, you might want to un-sync your contacts and phonebook from your Facebook account when you plan to deactivate or completely delete your account, of if you are heading towards creating a new Facebook profile for your business or personal use.
Regardless of the reason, here’s how you can un-sync your Facebook app from contacts and phonebook on your Android phone: