Strange behavior between dolphin and default file selector

[Golfy]

I would to see folders before any files : it’s ok in Dolphin, but not with others applications (using default file selector).
Dolphin :

Saving file in FireFox :

Is there a configuration file or settings where to change that?
Thanks

[Aragorn]

Try clicking the Type header in the third column. Right now it is set to sorting on the name.

[cfinnberg]

You can also set widget.use-xdg-desktop-portal.file-picker to 1 in Firefox’s about:config to get KDE’s file-picker.

Edit:
Yo need to install xdg-desktop-portal-kde and enable the service:

systemctl --user enable --now plasma-xdg-desktop-portal-kde.service

[Golfy]

I’ve found a simple solution, but it needs to (1) right-click on an empty space: then (2) just check the good option (not as intuitive as it should, but works perfectly).

[Golfy]

Your message helped me to found the correct solution, thanks