How are supercookies prevented?

[mklcp]

While I appreciate MullVad's browser efforts to prevent many common privacy leaks like WebRTC, totally preventing fingerprinting seems pretty hard given that users can always be identified by storing locally their fingerprints, whether it's in localStorage or even favicons.

Like this demo shows: https://supercookie.me/

[ruihildt]

Totally preventing fingerprinting is an impossible goal and not one we're trying to achieve.

To better understand our approach I recommend the articles we have written about the approach from the browser page on our website.

Regarding this website, have you tried the demo in Mullvad Browser?
When I run it, I receive an ID, if I restart the browser and run it again, I get another ID.