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Mozilla Firefox gets new anti-fingerprinting defenses

ID: 2322509e-fd8a-584b-97fb-1729added266

STIX ID: report--2322509e-fd8a-584b-97fb-1729added266

Feed Name: Bleeping Computer

Date Published: 2025-11-10

Date Updated: 2026-07-17

Author: Bill Toulas

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Mozilla released Phase 2 anti-fingerprinting protections in Firefox 145 (initially in Private Browsing and ETP Strict) that block access to local fonts and hardware details, add noise to certain image readings, normalize touch support, screen resolution, and CPU core reporting, reducing user fingerprintability from roughly 35% to about 20%.

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