Merlin
Canvas Fingerprint Defender

Canvas Fingerprint Defender

Defending against canvas fingerprinting by reporting a fake value.

  • Canvas Fingerprint Defender
  • Canvas Fingerprint Defender
What is Canvas Fingerprint Defender?
"Canvas Fingerprint Defender" is a Firefox add-on that offers a unique layer of privacy protection. By reporting a random and fake canvas fingerprint, it makes your online presence harder to track across various sites. This add-on refreshes your fake fingerprint with each new visit or page reload, providing ongoing privacy without any adjustments or settings.
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Merlin
Stats
This add-on was removed from Firefox Browser Add-ons on 2024-04-11
By: ilGur
Users: 4,098
Rating: 4.00 (62)
Version: 0.2.0 (Last updated: 2022-11-02)
Creation date: 2018-02-04
Weekly download count: 353
Firefox on Android: Yes
Risk impact: Moderate risk impact
Risk likelihood: High risk likelihood
Manifest version: 2
Permissions:
  • storage
  • contextMenus
  • notifications
Size: 43.85K
URLs: Website
Stats date:

Other platforms

Canvas Fingerprint Defender
Canvas Fingerprint Defender (v0.2.1)
3.93 (61) 40,000
Not available on Edge
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Summary
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Canvas Fingerprint Defender is a lite addon that let you easily hide your real canvas fingerprint by reporting a random fake value.

According to many tech blogs, completely blocking canvas fingerprint is not a good idea, therefore reporting a "fake" fingerprint could be the best solution to better protect your privacy.

This addon 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, it 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. browserleaks). 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 Canvas fingerprint.

Note 2: If you also want to protect your browser against other types of fingerprints, please see my other addons: AudioContext Fingerprint Defender, WebGL Fingerprint Defender.

Note 3: In order to report bugs, please visit addon's homepage and fill the bug report form.

User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Provides different canvas fingerprint ID each time a page is loaded
  • Works well alongside other defender extensions by ilGur
  • Useful for protecting against online fingerprinting
  • Good for online security and privacy
Cons
  • Does not provide a prompt when visiting a site that attempts fingerprinting
  • Does not provide an option to whitelist trusted sites
  • Some users reported that the fingerprint remains the same regardless of VPN or private mode
Most mentioned
  • Provides different canvas fingerprint ID each time a page is loaded
  • Works well
  • Needs improvements for better user control and customization
  • Useful for online security and privacy
Recent reviews
by Eternal_Sully, 2024-03-29
by Eternal_Sully, 2024-03-29
Tested on https://browserleaks.com/ and works fine, I get a different canvas fingerprint ID each time I load a page :) Tested on https://webbrowsertools.com/canvas-fingerprint/ and same result, a different canvas fingerprint ID each time. However, this last website does detect that the canvas fingerprint is being spoofed. Detection can cause the website to ignore canvas fingerprint and use other methods to identify you instead. Therefore this extension is best used alongside protection against other types of fingerprinting. ilGur's other extensions work fine too (WebGL Fingerprint Defender, Font Fingerprint Defender, and AudioContext Fingerprint Defender) so I would recommend installing them as well.
by Quaesitrix, 2024-01-01
View all user reviews
Safety
Risk impact

Canvas Fingerprint Defender may not be safe to use and it requires some risky permissions. Exercise caution when installing this add-on. Review carefully before installing.

Risk likelihood

Canvas Fingerprint Defender may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

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