Accessing the Tor network safely requires more than simply downloading Tor Browser. This updated 2025 guide covers the full setup process, from download verification to security configuration, ensuring that new and experienced users can connect to onion services with maximum safety.
The first step is always downloading Tor Browser from the official Tor Project website (torproject.org). Verify the GPG signature of the downloaded installer before running it. The Tor Project publishes the expected signature hash alongside each release. Using a version obtained from any other source — including mirrors, alternative websites, or software repositories — introduces the risk of a trojanized install.
After installation, configure the security level. Click the Shield icon in Tor Browser's toolbar and select Advanced Security Settings. Set the security level to Safest. This disables JavaScript on non-HTTPS sites, preventing a major category of browser fingerprinting and exploitation attacks. Note that this will cause some clearnet sites to function incorrectly, but this tradeoff is acceptable given the privacy benefits.
If your ISP or network blocks Tor connections, you will need to configure bridges — unlisted Tor relays that are harder to block. In the Connection settings, select Use a Bridge. The Tor Project offers built-in bridges or allows you to request custom bridges via bridges.torproject.org. Obfs4 bridges provide the strongest obfuscation against deep packet inspection.
For the highest level of security, access the marketplace from Tails OS running on a USB drive. Tails routes all traffic through Tor automatically and leaves no data on the host machine after shutdown. See our OPSEC guide for detailed Tails setup instructions.