Bug 505671

Summary:	Firefox is not restored in Plasma Wayland session
Product:	[Plasma] plasmashell	Reporter:	Piotr Mierzwinski <piotr.mierzwinski>
Component:	Session Management	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kde, kde, kdedev, natalie_clarius, nate, piotr.mierzwinski
Priority:	NOR	Keywords:	qt6, regression, wayland-only
Version First Reported In:	6.4.80
Target Milestone:	1.0
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Piotr Mierzwinski 2025-06-16 23:12:17 UTC

SUMMARY
I think for couple weeks  Firefox is not restored in Plasma Wayland session

STEPS TO REPRODUCE
1. System Settings -> Session -> Desktop Session -> Session Restore: On last logout  [checked]
2. Start couple applications, I start: konsole, Dolphin, Kate and Firefox (3 windows)
3. Logout and login or restrat your PC

OBSERVED RESULT
konsole, Dolphin, Kate are restored, but Firefox not

EXPECTED RESULT
Should be restored all application like it happened couple weeks ago

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: YES
KDE Plasma Version: 6.4.80
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.0

ADDITIONAL INFORMATION

Comment 1 TraceyC 2025-06-17 17:08:37 UTC

I can reproduce this on Neon Testing using the same testing steps

Comment 2 David Redondo 2025-09-23 06:59:41 UTC

Works for me on Neon unstable with firefox 143

Comment 3 Nate Graham 2025-09-26 17:00:22 UTC

Works for me on KDE Linux with those steps too.

Comment 4 TraceyC 2025-09-26 19:17:01 UTC

I can still reproduce this in a Neon Testing VM as well as Fedora 42

Comment 5 Piotr Mierzwinski 2025-10-14 20:46:22 UTC

Today Firefox has been restored - yesterday I was opened 5 windows and today all of them have been restored. Now I'm not sure if this was distro problem or issue was fixed by accident. I don't close this bug report yet, let see what will happen tomorrow.

Comment 6 David Edmundson 2025-10-14 21:57:46 UTC

There was a relevant change in ksmserver, it's not just gone away by accident.