I'm trying to use Sketchfab VR with Oculus in Firefox 57 on Windows. It works but the FOV is off. Instead of being present it's like I'm looking through a fish-eye lens. It seems like the FOV settings are just plain wrong.
Trying A-Frame Painter (aframe.io/a-painter/) it works just fine with the correct fov which suggests the issue is with Sketchfab, not Firefox or the Oculus.
Any idea how to fix?