Tor Browser

Free and extensible browser for use with the Tor anonymity network

Tor Browser is a Web browser derived from Firefox with strong measures to preserve privacy. Unlike typical browsers, Tor Browser makes all network connections through the anonymity-preserving Tor network, through which you have access to both standard websites and special “Onion” sites that are only available through Tor.

Each version of Tor Browser is built from the latest long-term support (LTS) version of Firefox.

Using Tor

Because Tor Browser connects to a special network, your network traffic can be attributed to usage of Tor by your local network administrator and Internet service provider (ISP). Although these third parties can’t see what you’re doing, they can see that you are using a tool that affords strong anonymity. You could potentially face retaliation for connecting to the Tor network from a network operated under a party who is hostile to freedom of information, such as an oppressive government, or who is simply fearful or overly cautious of technology they don’t understand, such as a university or workplace.

Where Tor is inaccessible because of a block or you otherwise need to conceal your usage of Tor, Tor Browser offers some circumvention measures in the form of Tor Bridges, which let you connect to the network through an alternative route that is more resistant to censorship.

It is strongly recommended that you start by consulting the following resources, so that you can maintain good digital hygiene while using Tor Browser to achieve your goals in accordance with your threat model:

Browser Extensions

Installing extensions in Tor Browser beyond those already included in its standard configuration is inadvisable, since they can weaken the browser’s fingerprinting resistance.

Tor Browser comes with a few extensions installed, including the script-blocker NoScript.

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