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What our analysis found
Font Fingerprint Defender, used by 1,590 people, is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites. It comes from a publisher with 22 extensions and was last updated in May 2026.
Font Fingerprint Defender Firefox extension security report
ID: font-fingerprint-defender
Extension Info & Metadata
Publisher Contextual Analysis
- Author
- ilGur
- MX records exist
- Yes
- Domain exists
- Yes
- Is disposable
- No
- Is role-based
- No
- Mailbox exists
- Yes
- Website
- Visit
Screenshots & videos
Install growth
1 indicator
Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.
About this extension
Defending against Font fingerprinting by reporting a fake value.
Read the publisher’s full description
<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/f0dcbaf5a86b1fda85b97ff46472f92fbb53a95844a716a0a1b0a5fa3d69d80a/https%3A//mybrowseraddon.com/font-defender.html" rel="nofollow">Font Fingerprint Defender</a> is a lite addon that let you easily hide your real font fingerprint by reporting a random fake value and protect your privacy. This addon does NOT block the fingerprint, instead, it simply adds a small noise to the actual fingerprint and "renews" it every time you visit a website or reload a page. It is important to note that, this addon does not have any settings or options to adjust. Simply add it to your browser and start surfacing the internet. If you want to test this addon, please visit a website that show your fingerprint (i.e. <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/3c6492daea9546ddf9227a706a8f5c7b6b37347d45ad63b7e8b9481e46f11ab6/http%3A//webbrowsertools.com/font-fingerprint/" rel="nofollow">webbrowsertools.com/font-fingerprint/</a>). Every time you reload the page, you will see a new fake fingerprint. Note 1: depending on your browser and platform, you may need to (Shift+Refresh) a web page to renew Font fingerprint. Note 2: If you also want to protect your browser against other types of fingerprints, please see my other addons: Canvas, AudioContext and WebGL Fingerprint Defenders. Note 3: To report bugs, please visit addon's <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/f0dcbaf5a86b1fda85b97ff46472f92fbb53a95844a716a0a1b0a5fa3d69d80a/https%3A//mybrowseraddon.com/font-defender.html" rel="nofollow">homepage</a> and fill the bug report form.
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