Canvas Blocker - Fingerprint Protect chrome extension

What is Canvas Blocker - Fingerprint Protect?

Canvas Blocker - Fingerprint Protect is a canvas extension for chrome. also, it is browser fingerprinting extension and canvas blocker extension and fingerprint extension. it's a free extension and is featured in Developer Tools, it has 20,000+ active users since released its first version, it earns an average rating of 3.97 from 30 rated user, last update is 1207 days ago.

What’s new in version 0.1.5?

                This extension protects user privacy by prevents the HTML canvas element from being used by malicious scripts for fingerprinting the user. This extension adds a slight noise to the data generated by the 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). The extension supports three modes of operation:

  1. Random noise
  2. Random noise (per session) (to have a fixed identity for current page session)
  3. Fixed noise (to have a fixed but unique identity all the time)

Features:
  1. Fingerprint defender with as minimum footprint as possible
  2. Block or disable fingerprint on certain hostnames
  3. Notify when the canvas fingerprint is detected
  4. Disable notification for a few hostnames or for all hostnames.
  5. Works on cross-origin (CORS) and sandboxed iframes (like Disqus and Hangouts)

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 the canvas element entirely. It only modifies two methods to prevent the JavaScript engine from generating a unique identification key from this element.

What is Canvas Fingerprinting:
Canvas fingerprinting is one of a number of browser fingerprinting techniques for tracking online users that allow websites to identify and track visitors using the HTML5 canvas element instead of browser cookies or other similar means. Canvas fingerprinting works by exploiting the HTML5 canvas element. When a user visits a page, the fingerprinting script first draws text with the font and size of its choice and adds background colors. Next, the script calls Canvas API?s ToDataURL method to get the canvas pixel data in dataURL format, which is basically a Base64 encoded representation of the binary pixel data. Finally, the script takes the hash of the text-encoded pixel data, which serves as the fingerprint.            

How to install Canvas Blocker - Fingerprint Protect?

You could download the latest version crx file or older version files and install it.

Preview of Canvas Blocker - Fingerprint Protect

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Reviews of canvas blocker - fingerprint protect:

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Tom Landi September 5th, 2022

Fixed Fingerprint - This option isn't useful at all. You do NOT get randomnized Fixed Fingerprint by enabling this option. Your Fingerprint is same for ALL chrome based browser run within the same computer. You can test it using Comodo Dragon (chrome based) or portable version of Chrome.

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Van Tung Tran August 1st, 2021

First of all, Thanks for making a great tool! But, but if you have multi profiles of Chrome and install this extension to these profiles and using "Fixed Fingerprint" mode in setting of extension, the Fingerprint code is the same on all profiles. Finally, The "Fixed Fingerprint" feature work wrong on multi profiles. Please fix this.

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R. Y June 9th, 2021

It's an awesome extension, just please, let us be able to disable notifcations, they get really annoying.

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