Fingerprinting Privacy: Brave vs Firefox

Brave(Full disclosure: that is a referrer link that will tell Brave I sent you) and Firefox both bill themselves as privacy-championing browsers for consumers. I have a deep appreciation for both projects: Mozillahas been a champion of the open Internet for two decades, and Brave is attempting to overthrow the incumbent revenue model of the Internet.

In this post, I quickly compare the fingerprinting capability of these two browsers by browsing to three fingerprinting demonstration sites:

I open each of these sites in a regular session and a private session for each browser, then I reboot the browser and re-open each site in a regular and private session for both browsers. Here’s what I found:

The desired outcome is for the browser hash to be unique on each visit to the page. A unique value on each page view means the tracking technology isn’t able to trace back multiple sessions to one user.

Firefox Canvas Fingerprint Audio Fingerprint FPJS Fingerprint
Normal Session Unique - ✅ Shared - 🚫 Shared - 🚫
Private Session Unique - ✅ Shared - 🚫 Unique - ✅
Normal Session Reloaded Unique - ✅ Shared - 🚫 Shared - 🚫
Private Session Reloaded Unique - ✅ Shared - 🚫 Unique - ✅
Brave Canvas Fingerprint Audio Fingerprint FPJS Fingerprint
Normal Session Unique - ✅ Unique - ✅ Shared - 🚫
Private Session Unique - ✅ Unique - ✅ Unique - ✅
Normal Session Reloaded Unique - ✅ Unique - ✅ Shared - 🚫
Private Session Reloaded Unique - ✅ Unique - ✅ Unique - ✅
Chris Lockard
Chris Lockard
Security Geek

I want to empower you to live a free life

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