SUMMARY When creating an appstarter for Firefox with "command-to-open -P Profilename", and using a custom icon for that, all Firefox windows will have this icon. STEPS TO REPRODUCE 1. Install Firefox 2. Create an appstarter using the same opening command, but add a parameter like "-p Profilename" to it, assign a new icon 3. Open the custom firefox 4. Open the normal firefox 5. Close both and open normal Firefox again OBSERVED RESULT The new appstarters icon is used for both firefox windows. EXPECTED RESULT Firefox should use its own Icon, only the custom launched appstarter should use it. SOFTWARE/OS VERSIONS Operating System: Fedora Linux 37 KDE Plasma Version: 5.27.2 KDE Frameworks Version: 5.103.0 Qt Version: 5.15.8 Kernel Version: 6.1.14-200.fc37.x86_64 (64-bit) Graphics Platform: Wayland ADDITIONAL INFORMATION the command used is: /usr/bin/flatpak run --branch=stable --arch=x86_64 --command=firefox --file-forwarding org.mozilla.firefox @@u %u @@ -p Profilename it works launching the custom Profile