Bug 455885

Summary: Firefox & Thunderbird start up with an empty window containing just a title bar and the plasma splash screen
Product: [Plasma] kwin Reporter: Richard Ullger <rullger>
Component: compositingAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED UPSTREAM    
Severity: normal CC: imaginator, nate, xaver.hugl
Priority: NOR    
Version First Reported In: 5.25.1   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Firefox window showing plasma splash screen
Firefox window containing wallpaper

Description Richard Ullger 2022-06-24 12:33:13 UTC
Created attachment 150116 [details]
Firefox window showing plasma splash screen

SUMMARY
Firefox is set to autostart on login and randomly starts up with an empty window containing just the title bar and initially showing the plasma splash screen. When minimised and then maximised, the wallpaper is displayed instead. The only way to fix this is to close firefox and restart it. Screenshots attached

STEPS TO REPRODUCE
1. Add firefox to autostart

OBSERVED RESULT
Next time you log into plasma, firefox sometimes starts up showing the kde splash screen in the firefox window and other times showing the firefox home screen.

EXPECTED RESULT
Firefox should always start up showing the firefox home screen

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.25.1
KDE Frameworks Version: 5.95.0
Qt Version: 5.15.5
Kernel Version: 5.18.6-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 12 × Intel® Core™ i7-8700 CPU @ 3.20GHz
Memory: 31.3 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 1080/PCIe/SSE2
Manufacturer: Notebook
Product Name: P7xxTM1
System Version: Not Applicable

ADDITIONAL INFORMATION
Seems to only happen during autostart.
Comment 1 Richard Ullger 2022-06-24 12:37:49 UTC
Created attachment 150117 [details]
Firefox window containing wallpaper
Comment 2 Nate Graham 2022-06-24 13:54:25 UTC
Both cases are caused by the background showing through. In the first screenshot, it's the splash screen, and in the second, it's the wallpaper.
Comment 3 Richard Ullger 2022-09-03 16:59:06 UTC
This is happening with both Firefox and Thunderbird without fail at every startup from autostart.
Comment 4 imaginator 2022-11-16 11:31:10 UTC
(In reply to Richard Ullger from comment #3)
> This is happening with both Firefox and Thunderbird without fail at every
> startup from autostart.

Can confirm this for FF-102esr and Plasma-(In reply to Richard Ullger from comment #3)
> This is happening with both Firefox and Thunderbird without fail at every
> startup from autostart.

Can confirm this for FF-102esr and Plasma-5.24.7. I'm not seeing this with xfce or with FF-91esr.

As a workaround: exclude FF/TB from session-restore. When I start FF-102esr manually after login, everything's fine. I'm not using TB-102.
Comment 5 Zamundaaa 2024-06-09 16:33:06 UTC
Sounds like an application issue; if you can still reproduce this issue, please report it to Mozilla