Does the green dot on facebook mean they are chatting?

It means they are signed in to Facebook, and have Chat activated. They may be on another browser tab, or are away from their device, but they are still viewed as"Active" by Facebook. read more

Chat & Messages a friend of mine looked at his 'friend' list and there is a green dot by my name. read more

The green dot means that the person is online and active on Facebook at that moment. It does not necessarily mean that the person is chatting. He may be chatting or not. read more

It means they are signed in to Facebook, and have Chat activated. They may be on another browser tab, or are away from their device, but they are still viewed as "Active" by Facebook. read more

Facebook says: Friends with a green dot next to their names are on chat or Messenger. Friends with a (phone icon) next to their name have downloaded one of the Facebook apps (ex: Facebook for iPhone and Android). These friends can see your chat messages on their phones. Friends with no icon next to their names are off chat. read more