The Tor Browser is a free and open-source web browser that allows users to browse the internet anonymously. It is built on the Mozilla Firefox framework and routes web traffic through the Tor network, which encrypts and randomly reroutes traffic through a global network of nodes. This makes it difficult to trace internet activity back to the user's location. While using Tor Browser, users can access websites, services, and information on the internet without revealing their IP address or geographical location.