The Tor Browser (version 9.0.6) is a web browser that allows users to browse the internet with anonymity and privacy. It uses the Tor network to encrypt internet traffic and mask the user's IP address, making it difficult to track their online activity. The browser also includes built-in security features such as NoScript, HTTPS Everywhere, and a security slider to customize the level of protection. Additionally, it has a user-friendly interface and is available for multiple operating systems.