POOP constipates the companies that track and traffic in your online life. It blocks a widespread and previously unaddressed tracking vector -- Cross-Origin Resource Sharing. CORS is supposed to keep you safe, but websites & their data-tracking partners have weaponized it against you. POOP stops the abuse without sacrificing the security benefit of CORS when it's used for its legitimate purpose. You should install this extension if you care enough about your privacy to block third-party cookies and use Firefox's anti-tracking preference. POOP fills a hole in your privacy wall. Thank you, claustromaniac.