Blue dot on notification bar

That sometimes appears on people who have Facebook Messenger installed and have chatheads active. So far apart from that info, not much is known about it as far as I have seen.
 
This issue has come up every now and then. There's a few threads about it on the S7 Edge forum.

It could be related to FB Messenger, I have no idea.

There's a couple ways to make it go away. The easiest is just to close all apps. You can also reboot the phone.
 
check your FB messager. if you have pop up heads. when ever I go to select text and back out it gives me the blue dot
 

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