Voip : when stopping screen sharing in Firefox, screenshare is frozen but not stopped

[estellecomment]

When screensharing from firefox, you get a little floating bar like this :

When you click "Stop sharing", the screenshare freezes in tchap call but is not stopped. Then when you click "Stop screenshare" in tchap, the screenshare really stops.

It's a ugly and annoying, but not a privacy concern since the screen is not seen by the other person any more.