Hide Facebook Messenger notification previews from the Lock screen for more privacy
In this tutorial, we'll be showing you how to stop notification previews for Facebook Messenger on your iOS devices' lock screens.
Jan 21, 2016 ... In this tutorial, we'll be showing you how to stop notification previews for ... a passcode or not, to see who might be messaging you on Facebook and a ... This way, someone who ends up with your device won't know what was ...