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WMClass for Nightly is firefox-nightly (self.firefox)

submitted 1 year ago by DiabloD3 to c/[email protected]

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I've seen this not documented anywhere, so I'm just writing this down here. You'll need to know this so your .desktop file can set your wm/taskbar icon correctly.

The .desktop file that Nightly installs (when it asks you if you want it to become your default browser) isn't aware of Nightly, and incorrectly sets StartupWMClass to firefox, thus Nightly will get a generic icon.

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[–] DiabloD3 1 points 1 year ago

It will install one if you say "yes" when it asks if you want to make it your default browser. xprop cannot query apps that use Wayland natively.