I think GNOME's filechooser is the GTK one (never used it so I'm not sure), mine looks like this:
*removed externally hosted image*
It's entirely possible that Firefox changed and now uses XDG portals by default, I configured it like this a long time ago.
As for how to configure it, I honestly don't know.
It was a combination of messing with widget.use-xdg-desktop-portal on about:config, and changing XDG envvars and dotfiles; both by following several conflicting Reddit and bbs.archlinux.org posts.
I think GNOME's filechooser is the GTK one (never used it so I'm not sure), mine looks like this:
*removed externally hosted image*
It's entirely possible that Firefox changed and now uses XDG portals by default, I configured it like this a long time ago.
As for how to configure it, I honestly don't know.
It was a combination of messing with
widget.use-xdg-desktop-portalon about:config, and changing XDG envvars and dotfiles; both by following several conflicting Reddit and bbs.archlinux.org posts.widget.use-xdg-desktop-portal.file-picker=1 in about:config should be the only thing you need. @projectmoon@lemm.ee
Seems to be the only necessary thing in my case! Thanks.
Yeah I definitely have the default GTK chooser. Guess I have some config playing to do later.
Instructions for changing it here
https://wiki.archlinux.org/title/Firefox#XDG_Desktop_Portal_integration