The browser maker says it's working on specifications, browser implementations and services to give users open VR and AR web experiences. Mozilla proposes a new WebXR API, this set of tools expands WebVR with augmented reality capabilities:
We have created a draft WebXR API proposal for providing access to both augmented and virtual reality devices. The WebXR API formalizes the different ways these technologies expose views of reality around the user, and it exposes concepts common in AR platforms such as the Anchors found in Hololens, ARKit, and ARCore.Furthermore, Mozilla is adding broader 3D support to Firefox, including support for the Meta AR headset. Full details at the Mozilla blog.
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WebXR is designed to make it easy for web developers to create web applications that adapt to the capabilities of each platform. These examples run in WebVR- and AR-enabled browsers, including desktop Firefox and experimental browsers such as one supporting ARCore on Android (although each small example is targeted at AR or VR for simplicity).