Are you sure it is installed? If it's installed, it should say it's installed like it does on my system:
xdg-desktop-portal-gnome/jammy,now 42.0.1-1ubuntu2 amd64 [installed,automatic] Please run this command to fix your issue: sudo apt install xdg-desktop-portal-gnome ** Tags added: snap -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970424 Title: firefox snap can not open any file dialogs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970424/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs