Guide · 5 min read
How to block browser fingerprinting
You can't fully stop websites from reading your browser's details, but you can make your fingerprint far less unique. The goal is to look like millions of other visitors, not to disappear.
See what your browser reveals
Our free scanner shows every signal your browser exposes and how unique your fingerprint is. No account, nothing stored.
Scan my browser free1. Use a browser with fingerprinting protection
Tor Browser makes every user look identical — the strongest option. Brave randomizes canvas, audio and WebGL readings on each site. Firefox blocks known fingerprinting scripts in Strict tracking protection, and privacy.resistFingerprinting adds stronger standardization.
2. Keep default settings
Every custom setting — unusual zoom level, rare language list, custom fonts — makes you stand out. Defaults put you in the largest crowd.
3. Be careful with extensions
Each extension can change what pages see. Ironically, many "anti-fingerprint" extensions make you more unique because few people use them. Prefer built-in browser protection and keep extensions to a minimum.
4. Use a common window size
A maximized window on a popular screen size is common. A hand-resized window of 1143×871 pixels is nearly unique. Tor's "letterboxing" handles this automatically.
5. Hide your IP address
Your IP isn't part of the device fingerprint, but it's combined with it for tracking and reveals your approximate location. A reputable VPN or Tor hides it.
6. Limit what scripts can read
Blocking JavaScript on untrusted sites stops most fingerprinting, at the cost of breaking many pages. Content blockers like uBlock Origin stop known tracking scripts from loading at all.
7. Test before and after
Run our free scanner before and after each change. Watch the "1 in N" rarity estimate drop as you blend in. Wondering about private windows? Read whether incognito mode stops fingerprinting.