suryadi / Fix duplicate icons for manually created gnome launcher items

23 Oct 2017 at 15:16

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  • Launch the application
  • Fire up a terminal and run xprop WM_CLASS. Click the application window.
  • You'll get some output like WM_CLASS(STRING) = "Navigator", "Firefox". Choose one of the classes, eg Firefox in this example
  • Add the class as the value of StartupWMClass in the .desktop file. For example, StartupWMClass=Firefox
  • Save the .desktop file, close the application and re-open it. There should now only be 1 icon in the launcher
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