PrivacyTests.org Adds 24 Fingerprinting Tests; No Browser Has Perfect Defenses

gnukeith · x · 2026-11-12

PrivacyTests.org has rolled out two dozen new fingerprinting-resistance tests offering an objective head-to-head comparison of desktop browsers.

• New tests are organized into two sections: Device tests (AudioContext fingerprint, Canvas2D geometry, logical CPU cores, etc.) and Settings tests (time zone, keyboard layout, screen dimensions, user-installed fonts, etc.).
• Key finding: no browser has perfect fingerprinting defenses — every browser has room for improvement.
• Strongest protection: LibreWolf, Mullvad Browser, and Tor Browser lead the pack. Brave passes several device tests (AudioContext, Canvas2D) but fails most settings tests (time zone, screen parameters). Chrome, Edge, and Firefox at default settings leak a wide range of fingerprintable attributes.

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