https://bugs.kde.org/show_bug.cgi?id=525149

            Bug ID: 525149
           Summary: Firefox webapp Task Manager wrong preview
    Classification: Plasma
           Product: plasmashell
      Version First 6.7.4
       Reported In:
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Task Manager and Icons-Only Task Manager widgets
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]
  Target Milestone: 1.0

Created attachment 195716
  --> https://bugs.kde.org/attachment.cgi?id=195716&action=edit
example

DESCRIPTION
When using Firefox to create a webapp (enabling the feature through Firefox's
about:config -> browser.taskbarTabs.enabled -> true and then clicking the 'Add
tab to taskbar' button), a separate icon of Firefox appears in the Task Manager
and can be used to access and manage the specific webapp.

The pinned app has the correct icon of the webapp, however it pulls media
information from a different tab, specifically one that is playing audio and/or
video, so it shows the 'speaker' icon as if audio is being played, and when
hovered, it shows a screenshot or image of the last played video from another
Firefox tab.

In my case, the webapp is TheLounge IRC web app, it doesn't play video nor
audio, but the icon has the speaker and the hover shows a thumbnail of a
YouTube video (attached).

STEPS TO REPRODUCE
1. Create a Firefox pinned-to-Task-Manager webapp
2. Play a video or audio in any other Firefox window

OBSERVED RESULT
Incorrect hover and audio icon

EXPECTED RESULT
Preview the webapp on hover

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 44
KDE Plasma Version: 6.7.4
KDE Frameworks Version: 6.29.0
Qt Version: 6.11.2

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