CookieViz is a free browser extension designed for Firefox that focuses on enhancing user privacy by visualizing the impact of cookies and trackers during web browsing. This tool enables users to better understand how their online activities are being monitored, providing real-time insights into the cookies that are being used on various websites. With CookieViz, users can see which cookies are active, how long they last, and what data they collect, making it easier to manage privacy settings effectively.

Since its inception in 2013, CookieViz has been continually updated to improve its functionality and user experience. This extension not only helps users identify potential tracking threats but also educates them about the privacy implications of their cookie usage. With its straightforward interface and practical features, CookieViz serves as a valuable resource for anyone looking to enhance their online security and protect their personal information.