In System Settings -> File Associations -> inode -> directory, Dolphin is listed at the top. However, using any "Open folder" function in a QT app (for example, Clementine) opens that folder in GwenView (which is listed second), NOT Dolphin. Removing GwenView from the list completely solves the problem. Clementine uses Utilities::OpenInFileBrowser, which calls https://doc.qt.io/qt-5/qdesktopservices.html#openUrl STEPS TO REPRODUCE 1. Install Clementine 2. Add some files to the playlist 3. Right-click on the file and choose "Show in File Manager" OBSERVED RESULT Folder is opened in Gwenview EXPECTED RESULT Folder is opened in Dolphin SOFTWARE/OS VERSIONS KDE Plasma Version: 5.18.5 KDE Frameworks Version: 5.69.0 Qt Version: 5.14.2
*** This bug has been marked as a duplicate of bug 397953 ***