The Tor Browser is a privacy-focused web browser built to provide users with anonymity and security while browsing the internet. It is based on Mozilla Firefox but uses the Tor network to route traffic through multiple volunteer-operated servers, or "nodes," across the globe. This routing system is often referred to as "The Onion Router" (Tor), due to the layers of encryption that are applied to users' data as it passes through each node, much like the layers of an onion. This process helps to obscure users' IP addresses, making it difficult for anyone to track or monitor their online activity.
Tor Browser allows users to access both the regular internet and the "dark web," a part of the internet that requires special software to access and is often associated with anonymous, encrypted communication. It is widely used by individuals who prioritize privacy, such as journalists, activists, and those in regions with internet censorship. While the Tor Browser provides a high level of anonymity and security, it can be slower than traditional browsers due to the multiple layers of encryption and the distance data must travel through the Tor network.