To disable:
user_pref("dom.private-attribution.submission.enabled", false);
This is a most excellent place for technology news and articles.
To disable:
user_pref("dom.private-attribution.submission.enabled", false);
Done. Thanks!
Alternatively you can do the same through Settings -> Privacy & Security -> Website Advertising Preferences and uncheck "Allow websites to perform privacy-preserving ad measurement"
So all browsers except some forks of Firefox are cooked now/soon?