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I have found this extension helpful for helping mitigate WebGL fingerprinting on Firefox — https://addons.mozilla.org/en-US/firefox/addon/webgl-fingerprint-defe

• gruez 6y ago
  > I have found this extension helpful for helping mitigate WebGL fingerprinting on Firefox — https://addons.mozilla.org/en-US/firefox/addon/webgl-fingerp https://addons.mozilla.org/en-US/firefox/addon/webgl-fingerp... It might work for simple fingerprinting scripts, but not for anti-anti-fingerprinting scripts. See: https://palant.info/2020/12/10/how-anti-fingerprinting-extensions-tend-to-make-fingerprinting-easier/ https://palant.info/2020/12/10/how-anti-fingerprinting-exten.... Since you're already on firefox, you're probably better off enabling resistfingerprinting instead.
  • kristofferR 6y ago
    That blog post doesn't seem valid, that extension randomizes the fingerprint each time.
    • gruez 6y ago
      It fails the first section ("Barking the wrong tree"). If I install the addon and then run gl.getParameter.toString() I get "function () { window.top.postMessage(\"webgl-fingerprint-defender-alert\", '*'); // if (arguments[0] === 3415) return 0; else if (arguments[0] === 3414) return 24; else if (arguments[0] === 36348) return 30; else if (arguments[0] === 7936) return \"WebKit\"; else if (arguments[0] === 37445) return \"Google Inc.\"; else if (arguments[0] === 7937) return \"WebKit WebGL\"; else if (arguments[0] === 3379) return config.random.number([14, 15]); else if (arguments[0] === 36347) return config.random.number([12, 13]); else if (arguments[0] === 34076) return config.random.number([14, 15]); else if (arguments[0] === 34024) return config.random.number([14, 15]); else if (arguments[0] === 3386) return config.random.int([13, 14, 15]); else if (arguments[0] === 3413) return config.random.number([1, 2, 3, 4]); else if (arguments[0] === 3412) return config.random.number([1, 2, 3, 4]); else if (arguments[0] === 3411) return config.random.number([1, 2, 3, 4]); else if (arguments[0] === 3410) return config.random.number([1, 2, 3, 4]); else if (arguments[0] === 34047) return config.random.number([1, 2, 3, 4]); else if (arguments[0] === 34930) return config.random.number([1, 2, 3, 4]); else if (arguments[0] === 34921) return config.random.number([1, 2, 3, 4]); else if (arguments[0] === 35660) return config.random.number([1, 2, 3, 4]); else if (arguments[0] === 35661) return config.random.number([4, 5, 6, 7, 8]); else if (arguments[0] === 36349) return config.random.number([10, 11, 12, 13]); else if (arguments[0] === 33902) return config.random.float([0, 10, 11, 12, 13]); else if (arguments[0] === 33901) return config.random.float([0, 10, 11, 12, 13]); else if (arguments[0] === 37446) return config.random.item([\"Graphics\", \"HD Graphics\", \"Intel(R) HD Graphics\"]); else if (arguments[0] === 7938) return config.random.item([\"WebGL 1.0\", \"WebGL 1.0 (OpenGL)\", \"WebGL 1.0 (OpenGL Chromium)\"]); else if (arguments[0] === 35724) return config.random.item([\"WebGL\", \"WebGL GLSL\", \"WebGL GLSL ES\", \"WebGL GLSL ES (OpenGL Chromium\"]); // return getParameter.apply(this, arguments); }" without the addon I get "function getParameter() { [native code] }"
      • deleted 6y ago
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    • iudqnolq 6y ago
      Getting a random value each time is trivially detectable. That's a better signal that what you're blocking if more people share your video card model than install the extension.