Playing krpano tours on HTC Vive Pro

Hi,
Any recommendation, what' s the best for playing krpano tours on vive pro at the moment?
No internet, thus should be offline...

Firefox Reality? Or?
Thanks in advance!

Thanks Klaus,
i just managed it to work. Client want W10 kiosk with VR system and virtual tour, i´m new to HTC Vive vr glasses and was confused by steam VR Viveport all the apps etc. I found it´s very simple. Just to run krpano testing server, open my tour in firefox, allow firefox for VR devices and in my krpano tour just enter VR. Now, after some tests, i must say that everpano 3D made tour is really fantastic Thanks!