$ firewall-cmd --zone=home --list-all Error: org.fedoraproject.slip.dbus.service.PolKit.NotAuthorizedException.org.fedoraproject.FirewallD1.config:
using XFCE if that matters
I could see the same issue when running without X environment: firewall-cmd --reload Error: org.fedoraproject.slip.dbus.service.PolKit.NotAuthorizedException.org.fedoraproject.FirewallD1.config: it asks for a root password in KDE environment then it shows output.
firewalld is using D-BUS for the communication. If you are not root, you need to authenticate using polkit.
Thanks, starting the /usr/libexec/polkit-gnome-authentication-agent-1 with XFCE makes the problem disappear. closing as NOTABUG
Petr, a workaround from non-X environment is to use sudo... just FYI