DigitalFacebook Message Notifications Now Alert Users When Their Friends Are OnlineFacebook already alerts users when their friends are online in its chat sidebar, and it now appears to have extended that feature to its notifications section for messages.By David Cohen|January 23, 2014 ShareBy David Cohen|January 23, 2014 ShareFacebook already alerts users when their friends are online in its chat sidebar, and it now appears to have extended that feature to its notifications section for messages.Reader Or Fialkov of Fialkov Digital shared the screenshot above, in which green dots appear next to the names of friends who are currently online.Readers: Are you seeing the same thing in your message notifications? Adweek Adweek