SUMMARY STEPS TO REPRODUCE 1. Install KDE NEON 2. Start Firefox from Panels Icon 3. Close Firefox 4. Restart the system OBSERVED RESULT The Firefox Icon is now empty in the Panel and in the Favourits list EXPECTED RESULT Firefox Icon should not disappear and should not stay empty Linux/KDE Plasma: KDE NEON KDE Plasma Version: 6.4.0 KDE Frameworks Version: 6.15.0 Qt Version: 6.9.0
IIRC this is a Neon-specific issue; moving the bug report there.