> For example, WebGL reports the video card that you use. Who needs that? Well, maybe there is a tiny percentage of sites that use this information to detect bu

> For example, WebGL reports the video card that you use. Who needs that? Well, maybe there is a tiny percentage of sites that use this information to detect bugs but main use of this feature is a reliable unforgeable signal for fingerprinting a device. Most of sites do not need WebGL at all. WEBGL_debug_renderer_info is an optional extension to webgl specifically so it can be denied to the page at the browser's discretion. And Firefox's privacy.resistFingerprinting (the subject of this article) disables it: https://developer.mozilla.org/en-US/docs/Web/API/WEBGL_debug_renderer_info#sect1 https://developer.mozilla.org/en-US/docs/Web/API/WEBGL_debug...