[plasma-browser-integration] [Bug 524384] New: Download notification for Firefox-based browsers packaged with Flatpak shows a garbed path

https://bugs.kde.org/show_bug.cgi?id=524384

            Bug ID: 524384
           Summary: Download notification for Firefox-based browsers
                    packaged with Flatpak shows a garbed path
    Classification: Plasma
           Product: plasma-browser-integration
      Version First unspecified
       Reported In:
          Platform: KDE Linux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: Firefox
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

I'm unsure if this is a PBI issue or a notification issue, so I thought I'd
start here with PBI.


STEPS TO REPRODUCE
1. Launch a sandboxed Flatpak instance of LibreWolf or Firefox, with the
plasma-browser integration's add-on installed.
2. Visit https://github.com/caelestia-dots/shell.
2. Scroll down to the video > right-click > download > select desktop > OK.
3. After it downloads, a system notification from Plasma Browser Integration
appears.


OBSERVED RESULT
The notification says it was downloaded to
"/run/user/1000/doc/bWu6HL6WsGZiNKgaBXwMGg" (or some similar nonsense).
Clicking on the link opens that weird path instead of "/home/nate/desktop".


EXPECTED RESULT
The notification says it was downloaded to "/home/nate/Desktop" and clicking on
the link takes me there.


ADDITIONAL INFORMATION
The browser's own download popups display the location correctly as
"/home/nate/Desktop", and their "show in folder" actions take me there.

This issue only affects LibreWolf and Firefox; Chromium is unaffected.


SOFTWARE/OS VERSIONS
Operating System: KDE Linux 2026-08-13
KDE Plasma Version: 6.7.80
KDE Frameworks Version: 6.30.0
Qt Version: 6.11.1
Kernel Version: 7.1.8-arch1-3 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7840U w/ Radeon™ 780M Graphics
Memory: 17 GB of RAM (16.0 GB usable)
Graphics Processor: AMD Radeon 780M Graphics

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