How to Keep People From Knowing You Read Their Message on ...
Facebook is the most popular social network on the internet, and as a result, its messaging service is a very common way for people to privately communicate with one another. However, Facebook also tells you when your recipient has read your message—something not everyone enjoys.
12 May 2017 ... However, Facebook also tells you when your recipient has read your message— something ... Chrome and Firefox: Use the “Unseen” Extension.