Download Tor Browser
The only way to reach .onion addresses is through the Tor network. Chrome, Firefox, Safari, and Edge cannot resolve them. There is one legitimate source for Tor Browser: torproject.org. Download from there and nowhere else.
Windows, macOS, Linux, and Android are all supported. iOS users get Onion Browser, which the Tor Project recommends. Skip the App Store look-alikes and unofficial mirrors — bundled-malware Tor installers are a documented attack vector specifically targeting privacy network market users.
Once installed, Tor Browser looks almost identical to Firefox — because it is a hardened Firefox ESR build. Differences that matter: no WebRTC (which leaks real IPs behind Tor), no browser fingerprinting APIs, Tor integrated at the network level. Everything you need. Nothing extra.