Following what the company describes as a successful trial in Europe, the world's largest social network is going to confine the ability to message Facebook friends solely to the dedicated Facebook Messenger app.
Over the coming days users of both the Android and iPhone versions of Facebook's mobile app will discover that when they receive a message from a friend — be it a straight text, a selfie or a video — rather than being able to read it within the app, they will get a notification that a message has arrived and that in order to view it they will have to install Facebook Messenger.
