― Logged in to Facebook and found the Facebook Chat Sidebar or window missing? Logged out and logged in again, still not showing chat? Restarted the Browser, logged in to Facebook once again, still no signs of Facebook chat? ∙ Well, the above situations are actually common these days, and you can find many Facebook users complaining about it. But the disappearance of chat is not a facebook fault, rather it is mainly caused due to the following reasons - ∙ 1. Slow Internet Connection [...].