I have problem with Facebook chat box notification.?

[Abd Al-Rahman]

normally when someone send you a message a red bubble appears on his chat box to notify you that you had a new message from him.
I don't get any notification in the box so when i'm chatting with more than a friend i must check all boxes to know who sent me new message.
note: i still can hear the beep when someone send me message.

[Ronnie]

I too faced the same problem. Facebook is changing the features frequently. So i think they have changed it.

[DK]

nothing to worry about that, some times it happens, due to some technical problems. i too had experienced it but now working fine,
once delete all saved data from your browser and try again

[Daniel]

If its Not Showing up thats Probably a Error With Facebook Please Contact Facebook at the Help Center and Report the Problem to them