I switched to Wayland on Plasma 5.27 Manjaro Stable and Firefox can’t use Plasma “open file” or “save as”. Instead it uses gtk dialogues. In about:config I have
widget.use-xdg-desktop-portal.file-picker set to 2
widget.use-xdg-desktop-portal.mime-handler set to 2
When I set them to 1 dialogues don’t pop-up at all.
I have xdg-desktop-portal, xdg-desktop-portal-gtk, xdg-desktop-portal-kde packages installed.
systemctl --user status plasma-xdg-desktop-portal-kde
● plasma-xdg-desktop-portal-kde.service - Xdg Desktop Portal For KDE
Loaded: loaded (/usr/lib/systemd/user/plasma-xdg-desktop-portal-kde.service; static)
Active: active (running) since Tue 2024-04-16 17:27:03 CEST; 5min ago
Main PID: 863 (xdg-desktop-por)
Tasks: 6 (limit: 9403)
Memory: 23.8M (peak: 24.4M)
CPU: 304ms
CGroup: /user.slice/user-1000.slice/user@1000.service/session.slice/plasma-xdg-desktop-portal-kde.service
└─863 /usr/lib/xdg-desktop-portal-kde
kwi 16 17:27:02 user systemd[677]: Starting Xdg Desktop Portal For KDE...
kwi 16 17:27:03 user systemd[677]: Started Xdg Desktop Portal For KDE.