Do Not Track is a free Chrome extension developed by Jonathan Mayer that adds the Do Not Track header (DNT: 1) to all requests. This extension is designed to protect users' privacy online by allowing them to opt out of tracking by websites they do not visit. It works by sending a signal to analytics services, advertising networks, and social platforms, indicating that the user does not want to be tracked.

With the increasing concern about online privacy, Do Not Track offers a simple and effective solution. It provides users with a single, persistent choice to opt out of third-party web tracking. This technology and policy proposal aims to make tracking opt-out more reliable and user-friendly.

Please note that this extension requires Chrome 17 or later. If you are running the default Release build of Chrome, the extension will not successfully install until late January 2012.

For those who value their privacy and want to have more control over their online activities, Do Not Track is a must-have extension. It empowers users to protect their personal information and browse the web with peace of mind.