Anti-Tracking Guide

Does a VPN stop browser fingerprinting?

A VPN changes the IP address websites see and hides traffic from your network, but the EFF says it does not stop fingerprinting. What each tool covers.

Official source: EFF Surveillance Self-Defense, Choosing the VPN That's Right for You. Verified on

2 min read · Review scheduled for 2027-01-24

Contents

Short answer

No. The EFF lists fingerprinting among the tracking methods a VPN does not prevent, next to cookies, tracking pixels and GPS (EFF). A VPN and an anti-fingerprinting browser solve different problems, and many people need both.

What a VPN does change

According to the EFF (EFF):

  • It masks your IP address. Sites see the VPN server's address instead of yours.
  • It moves your apparent location to wherever that server is.
  • It hides your traffic from your internet provider and from whoever owns the local network, such as a café or hotel.

What it does not change

  • Your browser's details. Screen size, time zone, fonts, canvas and the other signals in fingerprinting techniques come from your device, not your connection. A VPN passes them through untouched.
  • Accounts you are logged into. The EFF notes that your history can still be obtained if you are signed in (EFF).
  • Who sees your traffic. It moves from your provider to the VPN company. The EFF says your browsing is visible to the VPN provider, so you are choosing whom to trust.

One mismatch to watch

If your VPN puts you in another country but your browser still reports your home time zone and languages, those details do not match your new IP address. The browser check shows the time zone and languages your browser reports, so you can see what a site would compare. We do not claim any site uses this mismatch; it is simply information that stays visible.

Which tool covers what

Threat VPN Anti-fingerprinting browser Global Privacy Control
Your real IP address Hidden (EFF) Not hidden Not hidden
Network owner seeing sites Hidden Not hidden Not hidden
Fingerprint of your browser Not stopped (EFF) Reduced (Mozilla) Not stopped
Sale or sharing of your data No effect No effect Asked to stop, where law backs it (Mozilla)

A sensible order

  1. Browser first: pick one with fingerprinting defences (browsers compared).
  2. Signal second: turn on Global Privacy Control.
  3. VPN if your worry is the network or your IP: public Wi-Fi, an internet provider you do not trust, or hiding your location from sites. The EFF's guide explains how to judge a provider (EFF).

Outside this page: We do not rank or recommend VPN services. Tor Browser, which both changes the address and standardises the fingerprint, is on its own page.