Bug 438762

Summary:	Firefox icon does not appear in icons-only task manager in Wayland
Product:	[Plasma] plasmashell	Reporter:	Matthew Cohen <cohen>
Component:	Task Manager and Icons-Only Task Manager widgets	Assignee:	Eike Hein <hein>
Status:	RESOLVED NOT A BUG
Severity:	normal	CC:	nate, plasma-bugs
Priority:	NOR	Keywords:	wayland-only
Version:	5.22.1
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Matthew Cohen 2021-06-16 18:11:12 UTC

SUMMARY

When running 5.22.1 in Wayland, starting Firefox (with MOZ_ENABLE_WAYLAND=1 environmental variable) leads to the Firefox icon appearing in the task manager, then disappearing. The window is still open, but the icon is not visible in the task manager. I have not had this problem with other programs, and under X11, I get the intended behavior of the icon in the task manager.
 

STEPS TO REPRODUCE
1. Start a Plasma Wayland session
2. Enable Firefox to use Wayland
3. 

OBSERVED RESULT

The Firefox icon disappears from the task manager.

EXPECTED RESULT

The Firefox icon remains, along with icons of other programs.

SOFTWARE/OS VERSIONS

KDE Plasma Version: 5.22.1 
KDE Frameworks Version: 5.83.0
Qt Version: 5.15.2

Comment 1 Nate Graham 2021-06-17 18:39:48 UTC

Weird, works for me with Firefox's wayland support.

Comment 2 Matthew Cohen 2021-06-17 20:25:01 UTC

Thanks for commenting! I deleted my entire Firefox profile and the icon appears in the task manager as intended. Not sure what happened, but it's not a bug with Plasma.