Quote from Alex Smith on February 22, 2023, 7:05 am

As we all are aware with the facebook messenger but there are many users who wants to know that what does the green dot mean on facebook. So, this is the way to tell you that how many your friends are active on that time. This feature was introduced in 2017. This is very helpful feature to check who is your friend is active on that time or not.

 

 

read also: https://ityug247.com/how-to-hide-your-likes-on-facebook/