Created attachment 122890 [details] Screenshot STEPS TO REPRODUCE 1. Click a file of type application (javascript, json) OBSERVED RESULT The file is opened with kate not with katepart. EXPECTED RESULT The file is opened/embedded with kdepart/konqueror. SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: 5.16.5 KDE Frameworks Version: 5.62.0 Qt Version: 5.12.5 ADDITIONAL INFORMATION I assume something has changed in frameworks, it was fine with 5.61. Opening in a terminal: $ konqueror /home/test.json I get a popup window with the message: "Do you really want to execute 'file:///home/test.json'?"