How can I disable PPA?
Firefox provides an easy simple option to disable the privacy-preserving attribution feature if users prefer not to participate. Websites will not know if you choose to opt out in this way.
To opt out, do the following:
Click the menu button Fx89menuButton and select Settings.
In the Privacy & Security panel, find the Website Advertising Preferences section.
Uncheck the box labeled Allow websites to perform privacy-preserving ad measurement.

