What architectures does gnome kiosk support?

The sample application uses firefox, but firefox does not support 32-bit systems. Does Gnome kiosk not support them either? If not, then maybe he should use a different browser? For example, midori. Or install a sample application only with a special flag.

Please, someone from the developers, answer!

gnome-kiosk should work on 32 bit architectures as well.