Comment 50 for bug 1951491

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mtu (mtu) wrote :

I see the same as Stephen in c46: snap-Firefox fails to start locally, _sometimes_ – the error is not readily reproducable.

When it happens, the following errors appear in ~/.xsession-errors:

/user.slice/user-1000.slice/user@1000.service/app.slice/app-firefox_firefox-0403ae5e70f94aa6ace2ebfdfb404e54.scope is not a snap cgroup
qt.qpa.xcb: QXcbConnection: XCB error: 3 (BadWindow), sequence: 2201, resource id: 104858919, major code: 18 (ChangeProperty), minor code: 0
file:///usr/share/plasma/plasmoids/org.kde.plasma.taskmanager/contents/ui/Task.qml:366: Unable to assign [undefined] to QString

Usually, launching firefox from a terminal still works as expected.