Consent-O-Matic is a Firefox add-on designed to streamline the process of managing cookie consent pop-ups. This tool automatically responds to consent requests based on user-defined preferences, effectively preventing manipulation by confusing pop-ups. Users can set their preferences just once, and the add-on will handle the rest, ensuring a smooth browsing experience without constant interruptions from cookie consent notifications.

Developed by privacy researchers at Aarhus University, Consent-O-Matic aims to enhance user privacy in compliance with the EU's General Data Protection Regulation (GDPR). The add-on categorizes data processing purposes into five distinct options that users can toggle on or off. In cases where the categories do not align perfectly with those on a website, the add-on opts for the more privacy-preserving choice, thereby prioritizing user protection.