extension ExtPose

Canvas Blocker (Fingerprint protect)

Description from extension meta

Prevent HTML canvas element from generating a unique identification key to protect user's privacy

Image from store Canvas Blocker (Fingerprint protect)
Description from store a simple option-less extension to prevent the canvas element from being used by malicious scripts for fingerprinting a user. This extension adds a slight noise to the data generated by canvas element when certain methods are being called. This way the canvas element cannot be used for fingerprinting purposes. Compared to other similar extensions, this one is lighter and uses a more effective method to block fingerprinting from all frame elements (top and subframes). Notes: 1. There is no on and off button as the extension is not meant to be disabled. If there is a use case of the on and off button please report on the FAQs page (review section) 2. This extension does not block canvas element entirely. It only modifies two methods to prevent JS engine from generating a unique identification key from this element.

Latest reviews

  • (2020-04-13) Ростислав HP: Полезно
  • (2020-02-03) Clemens Ratte-Polle: fine :) But what about an option for disabling Canvas Blocker (Fingerprint Protect) on some sites?
  • (2020-01-30) ​ポール: Confirmed to work and has a whitelist - perfect! Also very light weight.
  • (2019-09-20) Cunninghams Law: The notifications are driving me nuts. How to disable?
  • (2019-08-31) A B: This should have a one click button to turn off notifications
  • (2019-03-10) Amardeep Verma: This Fingerprint canvas blocker does not block most of the websites. For example in Firefox there is a CanvasBlocker extension which blocks canvas fingerprinting on many sites which this extension misses. Further there is no visual indicator when a website is blocked from carrying out Fingerprint blocking.
  • (2019-03-07) johnnie faire: Is it possible to disable the notifications just for this plugin? I don't want to disable notifications all out for chrome - I just don't want to see them for this
  • (2019-02-03) Mihail Kolishev: Unfortunately it breaks some websites that use the distilnetworks.com services because it blocks the getImageData javascript function. Here's my console log when trying to log into my greenmangaming.com account. https://i.imgur.com/0VMdMfg.png
  • (2019-01-28) John Quers: Works Great! I have been using it for a few months now and no problems. Nice and fast, keep providing future updates to this extension.
  • (2018-06-22) Grégory LE MESTRE: perfect. No popup option, that's great.
  • (2018-06-20) Всё работает! Оху... Отлично! Спасибо! ***** ! Это пять!
  • (2018-05-17) Joe Shmoe: To disable notifications, right-click on one of the notifications, and select "Disable notifications for [...]"


9,096 history
4.5714 (14 votes)
Last update / version
2020-05-27 / 0.1.4
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