You can easily unblock someone on Facebook Messenger in the "People" preferences section of the app. Here's how to do it.

I walk through how I use Facebook Messenger on my iPhone to chat with friends, send photos, and manage settings. I show how ...

Facebook has its benefits. You can run into people you haven’t seen in a long time and share favorite throwback photos. But Facebook has a dark side too, with privacy concerns and a preference for ...