Optimal Tor Browser Security Settings for 2026

Tor Browser provides a strong foundation for anonymous browsing, but default settings may not offer maximum protection. This guide covers essential configuration changes for enhanced security.

Security Level Settings

Tor Browser offers three security levels: Standard, Safer, and Safest. For darknet browsing, we recommend at minimum the Safer level, which disables JavaScript on non-HTTPS sites and blocks certain fonts and media. The Safest level disables JavaScript entirely, which prevents many attacks but may break some sites.

JavaScript Considerations

JavaScript is the primary attack vector for browser-based deanonymization. While disabling it completely is safest, many modern onion services require it. Consider enabling JavaScript only for trusted sites and keeping it disabled by default using the NoScript extension built into Tor Browser.

Browser Window Fingerprinting

Never resize the Tor Browser window. It uses a standard window size to prevent fingerprinting. Resizing creates a unique identifier that can be used to track you across sessions. Always keep the default window size and don't maximize.

Additional Recommendations

Don't install additional extensions. Keep the browser updated to the latest version. Never open downloaded files while online. Use Tails or Whonix for maximum security. Don't use Tor Browser alongside your regular browser simultaneously.