So I’ve been using KDE Neon (User Edition) for about a month now, and this issue has been persistent across most, if not all programs. I’m having this issue where if I try to select a file or save a file, but change the directory I want to save it in, the application crashes. This happens in Firefox, which is becoming more and more of an issue. I figured this was a common thing at first and just assumed it would be ironed out in the updates, but no such thing has happened so I’m guessing it’s to do with either my hardware or my install. I’m learning that this is not a common issue as I can’t seem to find any results about this anywhere.
Is this a sandboxed browser, e.g. as Flatpak or Snap?
I have a similar issue with Signal-Desktop when I try to save but it is just the dialog crashing (xdg-desktop-portal-kde) not Signal itself.
In Firefox you could additionally check this:
go to “about:config” and look for a setting called `widget.use-xdg-desktop-portal.file-picker"
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It’s the debian package that comes preinstalled on Neon. I checked widget.use-xdg-desktop-portal.file-picker and it was set to 2. Seems setting it to 1 helped for firefox.
I think I need to force this for programs that are using other portals.
Interesting.
Essentially I have the same setup but had changed the value to 1 a couple of weeks back because 2 would always show the built-in dialog instead of KDE’s.
I just tried with reverting to 2 and it switched back to the other dialog but still worked.
I don’t know if this will help or if it’s even related, but I find some Flatpak apps are installed with permissions that are too restrictive. The one that I remember most is a music tag editor, Puddletag. It would always crash when saving tags to files, every single time, it was basically unusable. I had to relax its permissions to give it read access to system files and read/write access to all my files. It worked then without a glitch.
I use Fedora 41 KDE so it has a utility for that built in. Otherwise, you can use Flatseal: