How do I get Web VR?

Could you please elaborate on the process of acquiring Web VR? Is there a specific browser or software that I need to install? Do I need to download any additional files or plugins? Additionally, are there any compatibility issues that I should be aware of, such as certain devices or operating systems that may not support Web VR? It would be greatly appreciated if you could provide a step-by-step guide or direct me to a reliable resource that outlines the process of obtaining and using Web VR.