SUMMARY

Dolphin does not remember the default application selected for any file type. Even after choosing an app (e.g., VLC for video/mp4) and selecting “Remember the application for all files of this type”, Dolphin asks again every time a file is opened.

STEPS TO REPRODUCE

Open a file (e.g., a .mp4 video) in Dolphin.

When prompted, select an application (e.g., VLC) and enable “Remember the application for all files of type video/mp4”.

Open another file of the same type—or even the same file again.

OBSERVED RESULT

Dolphin prompts again asking which application to use.
The chosen application is not remembered.
This occurs for all file types, not just video files.

EXPECTED RESULT

Dolphin should remember the selected default application for the file type, and open all files of that type using that application without prompting again.

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Arch Linux
KDE Plasma Version: 6.5.3
KDE Frameworks Version: 6.20.0
Qt Version: 6.10.1
Kernel Version: 6.17.9-arch1-1 (64-bit)
Graphics Platform: Wayland
CPU: 16 × Intel® Core™ i5-14450HX
Memory: 16 GiB
Graphics:
• Intel® Integrated Graphics (Mesa)
• NVIDIA GeForce RTX 3050 6GB Laptop GPU (PCIe/SSE2)

ADDITIONAL INFORMATION

Issue affects all file types. Default applications are not saved despite selecting the option to remember the choice.