Package: firefox Version: 51.0.1-1 Severity: minor Hi,
A change in 51.0.1-1 introduced a mismatch between the "StartupWMClass" property in the desktop file and the real WM_CLASS property in X, which messes up some applications (like Plank for example). To fix that, instead of @browser@ (which results in the application name, without the capital F in Firefox), the source for desktop file should hard-code StartupWMClass as one of the values from the real WM_CLASS property of each application, e.g. "Firefox" for Firefox and "Firefox-esr" for Firefox ESR. I think this should be sufficient for Gnome to differentiate both applications from each other (although I couldn't test it since I don't have Gnome installed), and still not have other applications which rely on these properties behaving badly. Regards, -- Raphaël Halimi
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