Application: plasmashell (5.27.8)

Qt Version: 5.15.10
Frameworks Version: 5.110.0
Operating System: Linux 6.5.5-200.fc38.x86_64 x86_64
Windowing System: Wayland
Distribution: Fedora Linux 38 (KDE Plasma)
DrKonqi: 5.27.8 [KCrashBackend]

-- Information about the crash:
After the latest Frameworks update, simply using Super+1 to start Firefox, and Firefox only, crashes Plasma. When running from a terminal, plasmashell complains about "missing arguments" for firefox before crashing:

QString::arg: 2 argument(s) missing in firefox
dbus[3232]: arguments to dbus_message_new_method_call() were incorrect, assertion "destination == NULL || _dbus_check_is_valid_bus_name (destination)" failed infile ../../dbus/dbus-message.c line 1375.
This is normally a bug in some application using the D-Bus library.

Always reproducible. Just start a session, hit Super+1 and Plasma restarts without launching Firefox.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted

[KCrash Handler]
#4  0x00007f23e8cad884 in __pthread_kill_implementation () at /lib64/libc.so.6
#5  0x00007f23e8c5cafe in raise () at /lib64/libc.so.6
#6  0x00007f23e8c4587f in abort () at /lib64/libc.so.6
#7  0x00007f23e8140cf2 in  () at /lib64/libdbus-1.so.3
#8  0x00007f23e8169102 in  () at /lib64/libdbus-1.so.3
#9  0x00007f23e8157ab1 in dbus_message_new_method_call () at /lib64/libdbus-1.so.3
#10 0x00007f23eaee61fc in QDBusMessagePrivate::toDBusMessage(QDBusMessage const&, QFlags<QDBusConnection::ConnectionCapability>, QDBusError*) () at /lib64/libQt5DBus.so.5
#11 0x00007f23eaedf635 in QDBusConnectionPrivate::sendWithReplyAsync(QDBusMessage const&, QObject*, char const*, char const*, int) () at /lib64/libQt5DBus.so.5
#12 0x00007f23eaecbea1 in QDBusConnection::asyncCall(QDBusMessage const&, int) const () at /lib64/libQt5DBus.so.5
#13 0x00007f23e91e0620 in DBusActivationRunner::startProcess() () at /lib64/libKF5KIOGui.so.5
#14 0x00007f23e94e8481 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt5Core.so.5
#15 0x00007f23e91dab14 in QtPrivate::QFunctorSlotObject<KProcessRunner::init(QExplicitlySharedDataPointer<KService> const&, QString const&, QString const&, QString const&, QByteArray const&)::{lambda(int, QString const&)#1}, 2, QtPrivate::List<int, QString const&>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) [clone .lto_priv.0] () at /lib64/libKF5KIOGui.so.5
#16 0x00007f23e94e8481 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt5Core.so.5
#17 0x00007f23eb69c0c7 in KWindowSystem::xdgActivationTokenArrived(int, QString const&) () at /lib64/libKF5WindowSystem.so.5
#18 0x00007f23e94e8481 in void doActivate<false>(QObject*, int, void**) () at /lib64/libQt5Core.so.5
#19 0x00007f23d41c8ab0 in non-virtual thunk to WaylandXdgActivationTokenV1::xdg_activation_token_v1_done(QString const&) () at /usr/lib64/qt5/plugins/kf5/kwindowsystem/KF5WindowSystemKWaylandPlugin.so
#20 0x00007f23d41d2a29 in QtWayland::xdg_activation_token_v1::handle_done(void*, xdg_activation_token_v1*, char const*) () at /usr/lib64/qt5/plugins/kf5/kwindowsystem/KF5WindowSystemKWaylandPlugin.so
#21 0x00007f23ea756be6 in ffi_call_unix64 () at /lib64/libffi.so.8
#22 0x00007f23ea7534bf in ffi_call_int.lto_priv () at /lib64/libffi.so.8
#23 0x00007f23ea75618e in ffi_call () at /lib64/libffi.so.8
#24 0x00007f23ebb3ef0e in wl_closure_invoke.constprop () at /lib64/libwayland-client.so.0
#25 0x00007f23ebb3f793 in dispatch_event.isra () at /lib64/libwayland-client.so.0
#26 0x00007f23ebb3fa3c in wl_display_dispatch_queue_pending () at /lib64/libwayland-client.so.0
#27 0x00007f23ea926b4d in QtWaylandClient::QWaylandDisplay::flushRequests() () at /lib64/libQt5WaylandClient.so.5
#28 0x00007f23e94ded2b in QObject::event(QEvent*) () at /lib64/libQt5Core.so.5
#29 0x00007f23ea1aeb75 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib64/libQt5Widgets.so.5
#30 0x00007f23e94b41a8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib64/libQt5Core.so.5
#31 0x00007f23e94b7655 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /lib64/libQt5Core.so.5
#32 0x00007f23e9506c5f in postEventSourceDispatch(_GSource*, int (*)(void*), void*) () at /lib64/libQt5Core.so.5
#33 0x00007f23e82334fc in g_main_context_dispatch () at /lib64/libglib-2.0.so.0
#34 0x00007f23e82916b8 in g_main_context_iterate.isra () at /lib64/libglib-2.0.so.0
#35 0x00007f23e8230b83 in g_main_context_iteration () at /lib64/libglib-2.0.so.0
#36 0x00007f23e9506749 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#37 0x00007f23e94b2b6b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib64/libQt5Core.so.5
#38 0x00007f23e94badfb in QCoreApplication::exec() () at /lib64/libQt5Core.so.5
#39 0x000055c4feccc62a in main ()
[Inferior 1 (process 3232) detached]

Reported using DrKonqi