Bug 475323

SUMMARY

Plasmashell crashed when opening Firefox, which is pinned to the panel. This now has happened several times recently.
Below is the journalctl output. There's no stacktrace for plasmashell though. Works fine if FF is started from kickoff.

```
15:37:17 plasmashell[13505]: QString::arg: 2 argument(s) missing in firefox
15:37:17 plasmashell[13505]: dbus[13505]: arguments to dbus_message_new_method_call() were incorrect, assertion "destination == NULL || _dbus_check_is_valid_bus_name (des>
15:37:17 plasmashell[13505]: This is normally a bug in some application using the D-Bus library.
15:37:17 plasmashell[13505]:   D-Bus not built with -rdynamic so unable to print a backtrace
15:37:17 plasmashell[13505]: KCrash: Application 'plasmashell' crashing...
15:37:17 plasmashell[13505]: KCrash: Attempting to start /usr/libexec/drkonqi
15:37:17 systemd[2185]: plasma-ksystemstats.service: Consumed 5.086s CPU time.
15:37:18 systemd[2185]: plasma-plasmashell.service: Main process exited, code=exited, status=253/n/a
15:37:18 systemd[2185]: plasma-plasmashell.service: Failed with result 'exit-code'.
15:37:18 systemd[2185]: plasma-plasmashell.service: Consumed 45.039s CPU time.
15:37:18 systemd[2185]: plasma-plasmashell.service: Scheduled restart job, restart counter is at 2.
15:37:18 systemd[2185]: Stopped plasma-plasmashell.service - KDE Plasma Workspace.
15:37:18 systemd[2185]: plasma-plasmashell.service: Consumed 45.039s CPU time.
15:37:18 systemd[2185]: Starting plasma-plasmashell.service - KDE Plasma Workspace...
15:37:19 systemd[2185]: Started plasma-plasmashell.service - KDE Plasma Workspace.
15:37:19 plasmashell[15126]: kf.plasma.quick: Applet preload policy set to 1
```

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 38
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.10
Kernel Version: 6.5.5-200.fc38.x86_64 (64-bit)
Graphics Platform: Wayland