Bug 509726 - Firefox wayland pop-up player doesn't stay above all the windows?
Summary: Firefox wayland pop-up player doesn't stay above all the windows?
Status: RESOLVED NOT A BUG
Alias: None
Product: kwin
Classification: Plasma
Component: compositing (other bugs)
Version First Reported In: 6.4.90
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-09-20 19:22 UTC by pollux/ned
Modified: 2025-09-22 12:31 UTC (History)
1 user (show)

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Description pollux/ned 2025-09-20 19:22:30 UTC 
SUMMARY
Since the protocol is available in plasma 6.5 now and in firefox (i used nightly version just in case) i tried doing a youtube video in firefox, enable pip, opened a fullscreen game in xwayland and wine wayland just in case, pip window couldnt stay above the game, is this on purpose or is something missing?

STEPS TO REPRODUCE
1. use plasma 6.5 beta
2. play a youtube video in firefox
3. launch a video game like dirt rally 2.0 is what i used

OBSERVED RESULT
the pip window does not stay above any of the windows or fullscreen game

EXPECTED RESULT
it should stay above on every window

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Cachyos
KDE Plasma Version: 6.4.90/Plasma 6.5 beta
KDE Frameworks Version: 6.18.0
Qt Version: 6.10.0

ADDITIONAL INFORMATION
Comment 1 David Redondo 2025-09-22 09:07:43 UTC 
pip support is not enabled by default in kwin since it's a in development protocol
Comment 2 pollux/ned 2025-09-22 12:15:16 UTC 
(In reply to David Redondo from comment #1)
> pip support is not enabled by default in kwin since it's a in development
> protocol

oh i see, how would i enable it so i can test it out?
Comment 3 David Redondo 2025-09-22 12:31:49 UTC 
env var KWIN_WAYLAND_SUPPORT_XX_PIP_V1=1