Let's get real: The "seen" feature on Facebook messages is ruining your life.
When someone messages you, they can see if you read their message. And you can see if they've read yours! This is fun for no one.
Here's how you can stop the madness:
3. Check as many of these options as you'd like in the Preferences > Extensions panel. (You can block them on chat as well.)
It really works! This means that message recipients won't be able to tell if you've read their messages or not.