Version: (using KDE 4.3.2) Installed from: Ubuntu Packages Sometimes a single Window shows up twice in the taskbar, as if it were two separate application windows. Right now this is happening with Firefox-3.6, but I've also seen it with emacs and Freeciv.
Created attachment 37972 [details] Part of screenshot showing two entries for the same Firefox window
If you close the real window, does one of this taskbar entries dissapear (as expected), but the other one is still in the taskbar, and clicking on it will not do anything ? If that is your case then this is bug 202199. Thanks
*** This bug has been marked as a duplicate of bug 202199 ***