extension ExtPose

Font Fingerprint Defender

CRX id


Description from extension meta

Defending against Font fingerprinting by reporting a fake value.

Image from store Font Fingerprint Defender
Description from store Font Fingerprint Defender is a lite extension that let you easily hide your real font fingerprint by reporting a random fake value and protect your privacy. This add-on 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 add-on 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 add-on, please visit a website that show your fingerprint (i.e. webbrowsertools.com/font-fingerprint/). Every time you reload the page, you will see a new fake fingerprint. This extension is made in collaboration with the author of "Canvas Fingerprint Defender": https://chrome.google.com/webstore/detail/canvas-fingerprint-defend/lanfdkkpgfjfdikkncbnojekcppdebfp Note 1: depending on your browser and platform, you may need to (Shift+Refresh) a web page to renew Font fingerprint. Note 2: To report bugs, please visit addon's homepage (https://mybrowseraddon.com/font-defender.html) and fill the bug report form.

Latest reviews

  • (2021-03-31) Stanton McCandlish: Does exactly what it should do and claims it does. Tested at https://browserleaks.com/fonts and it spoofed both forms of font fingerprinting. I like that this is a one-exploit fix [well, TECHNICALLY it's two in this case] instead of a plugin claiming to spoof all forms of user fingerprinting, since new methods of that come up all the time. It's better to be certain that you have a particular weakness patched up because you have an extension that corresponds to it exactly, than to go without preventing a leak because you assumed it was included in some catchall extension but it wasn't. PS: Anyone who cannot figure out that they can click on the extension's icon and pick "Show|Hide desktop notifications" simply doesn't DESERVE to use this extension. Heh. Really, the developer should just turn this option off by default in this entire series of fingerprint defender extensions, since it's obviously the only thing causing unhappy feedback about any of them.
  • (2020-10-31) Sergey Tverye: Your Font Fingerprint Defender extension breaks loading of sites Lenta.ru and rambler.ru Can you fix it?
  • (2020-03-23) Need Source Code thanks


9,112 history
0.0 (0 votes)
Last update / version
2020-12-29 / 0.1.3
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