MozillaVR
If you want to get an overview of all things VR related at Mozilla you came to the right place.
WebVR information
https://mozvr.com/ Mozilla VR team site
https://blog.mozvr.com/ Mozilla VR Blog
https://webvr.rocks/ WebVR implementation status
https://aframe.io A-Frame content creation framework for WebVR
Specification
https://w3c.github.io/webvr/ W3C Editor's Draft
WebVR in Firefox Release via Test Pilot
Firefox Platform issues
All WebVR-related platform issues are filed on Bugzilla with [webvr] noted as part of the bug description or tagged with [webvr] whiteboard.
https://bugzilla.mozilla.org/buglist.cgi?quicksearch=%5Bwebvr%5D