The Tor Browser Bundle is a free Firefox-based web browser that integrates the Tor network's enhanced privacy and security features. Developed by The Tor Project, it implements second-generation Onion Routing technology to provide users with a secure online browsing experience. The software includes the Vidalia network connection utility and simplifies the process of connecting to the Tor network.

The Tor Browser Bundle offers a seamless experience by automatically configuring connections and opening the browser to a Tor start page. It comes equipped with Tor-specific features, such as NoScript for script management and the Torbutton for accessing Tor's settings and preferences.