Mozilla is facing criticism in Europe for enabling a privacy feature called Privacy Preserving Attribution (PPA) without user consent.Austria-based digital rights group Noyb has filed a complaint, arguing that PPA may infringe upon user rights under GDPR.Mozilla admits it should have done more to engage outside voices and is willing to address the confusion surrounding the default rollout of PPA.Noyb is calling for Mozilla to inform users, switch to an opt-in system, and delete unlawfully processed data of affected European users.