From the Mozilla Blog:
Today, Mozilla is sharing an early preview of an experiment we are calling “Hubs by Mozilla”. Hubs is an immersive social experience that is delivered through the browser. You simply click on a web link to begin interacting with others inside virtual reality.
When we announced Firefox Reality earlier this month, we reinforced our stance that the web provides the best future for virtual and augmented reality (or “Mixed Reality”). This technology is at tipping point. If we want to continue to bring immersive experiences into the mainstream, we need to be laser focused on removing friction for the user. The technology needs to step out of the way, and the experiences need to take center stage.
With Hubs, you can create a room with a single click. You can then share and access that room with a URL. No app store. No gatekeepers. No installation process. Just click and you are there.