Tor Deep Web Search Engine How to Download & use Tor Onion Browser Sites Safely (2018 Edition) Tor is a free, open-source browser that functions using the onion routing process. It provides secure, anonymous browsing by creating an encrypted environment from where no one can access the users data or even see it. Tor works on all kinds of internet protocols- HTTP, HTTPS, FTP, Gopher etc. It secures you from malware as well. The FBI can search or seize any computer simply because of Tor usage.”]