I've managed to use several versions of Firefox during the last year for WebVR: Sketchfab, A-Frame, 360cities. But this time something is definitively broken as none of these sites work with VR anymore: After a couple of minutes, everything freezes, showing tunnel vision with a giant hourglass turning in front of my visor. I reported this problem to Oculus, as to what logs or info would be available to troubleshoot my problem (no response so far), I'd like to know from the Firefox side if any problems are reported and how they would probe logs and settings to see if there is any issue for either side. Regards.