Created attachment 147455 [details] xprop data with generic icon SUMMARY I have an icon for Firefox pinned in the Icons-Only Task Manager. Since the release of Plasma 5.24, after some time after startup Firefox is no longer associated with its icon on the task manager and instead uses a generic KDE icon. STEPS TO REPRODUCE 1. Pin Firefox to the task bar. 2. Use it for some time, play multimedia etc. OBSERVED RESULT Firefox becomes associated with a generic KDE icon outside of the "pin area" of the task bar. Restarting Firefox fixes the problem. EXPECTED RESULT Firefox is always connected to its icon. SOFTWARE/OS VERSIONS Linux/KDE Plasma: KDE neon KDE Plasma Version: 5.24.3 KDE Frameworks Version: 5.91.0 Qt Version: 5.15.3
Created attachment 147456 [details] xprop data with proper icon
Created attachment 147457 [details] Pinned Firefox icon (left), running Firefox instance with generic icon
It seems that this happens when a Plasma dialog window is opened within Firefox (eg. the file selection dialog).