message notifications icon false positives

[Former user]

Using Windows 7 and Mozilla Firefox 33.1, the messages notification icon on the top right is showing itself as if there were new messages unread while in fact I've read them all. I haven't discovered any regularity in the behaviour but it happend several times. With less certainty in my satatement I'd say that this happens with Google Chrome as well.

[Nikola Milikic]

This issue is obsolete due to the new design.