The following WebGL does not work on android, since GeckoSurfaceTexture could bind to only one GL context at once. https://developer.mozilla.org/en-US/docs/Web/API/WebGL_API/Tutorial/Animating_textures_in_WebGL
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The following WebGL does not work on android, since GeckoSurfaceTexture could bind to only one GL context at once. With WebRender, GeckoSurfaceTexture is soon bounded to sharedGL. It prevent from usage by WebGL. https://developer.mozilla.org/en-US/docs/Web/API/WebGL_API/Tutorial/Animating_textures_in_WebGL