The Web Audio API has the ability to extract frequency, waveform, and other data from an audio source, that source is generated at runtime on your device. A fir

The Web Audio API has the ability to extract frequency, waveform, and other data from an audio source, that source is generated at runtime on your device. A firefox developer did a further dive into what the WebAudio based fingerprinting can actually return in firefox. https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNode https://developer.mozilla.org/en-US/docs/Web/API/AnalyserNod...