Messenger "chat heads active" notification

[SpyrosFgs]

 Hello there,

When someone sends me something on messenger I get the notification with what he said. I like that. What I don't like is that below that notification there is an other notification that says "chat heads active". How can I get rid of that without closing the pop up chat? 

[RockyJ32]

Open messenger, click on your profile pic icon in the top left corner. About the 4th item down, click "notifications & sound." At the bottom of that, click "manage notifications." Scroll down again, almost to the bottom, and turn off the "chat heads active" indicator.