[suggestion] prevent tracking via zoom level

[ghost]

Set browser.zoom.siteSpecific to false to make zoom levels preserved on a tab-by-tab basis, to prevent this specific fingerprinting vector.

Details & code: https://github.com/0xSobky/HackVault/wiki/z00mtrack:-User-Tracking-via-The-Browser-Zoom-Levels

Edit: please don't forget the relaxed branch, that's the one I'm using :)

[pyllyukko]

The PoC is not working correctly for me. I'm not getting the "Looks like you have visited this site before! Your id was #${signatureId}.". Need to experiment more with it.