this post was submitted on 18 Feb 2025
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Digital Fingerprinting: Google launched a new era of tracking worse than cookie banners | Tuta (tuta.com)
submitted 4 days ago by misk@sopuli.xyz to c/technology@lemmy.world
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[–] RecallMadness@lemmy.nz 2 points 3 days ago (1 children)

Iirc, Websites can’t query addons unless those addons manipulate the DOM in a way that exposes themselves.

They can query extensions.

Addons are things installed inside the browser. Like uBlock, HTTPS Everywhere, Firefox Containerr, etc.

Extensions are installed outside the browser. Such as Flashplayer, the Gnome extensions installer, etc.

[–] RecallMadness@lemmy.nz 1 points 3 days ago

Further: the Canvas API doesn’t have any requirements on rendering accuracy.

By deferring to the GPU, font library, etc, tracking code can generate an image that is in most cases unique to your machine.

So blocking the Canvas API would return a 0. Which is less unique than what it would be normally.