Canvas Blocker - Fingerprint Protect
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Canvas Blocker - Fingerprint Protect

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3.9(

34 ratings

)
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Overview

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

This browser extension safeguards user privacy by preventing malicious scripts from using the HTML canvas element for user fingerprinting. It introduces slight changes to the data generated by the canvas element when specific methods are invoked, rendering it unusable for fingerprinting. In comparison to similar extensions, this one is lighter and employs a more efficient method to obstruct fingerprinting across all frame elements (top and subframes). The extension operates in three modes: 1. Random noise 2. Random noise (per page) to maintain a consistent identity within the current page session 3. Fixed noise to sustain a constant yet unique identity continuously Key Features: 1. Minimal footprint fingerprint defender 2. Ability to block or disable fingerprinting on specific hostnames 3. Notification when canvas fingerprinting is detected 4. Option to disable notification for select or all hostnames 5. Compatibility with cross-origin (CORS) and sandboxed iframes (such as Disqus and Hangouts) Notes: This extension doesn't entirely block the canvas element. Instead, it modifies two methods to prevent the JavaScript engine from creating a unique identification key from this element. What is Canvas Fingerprinting: Canvas fingerprinting is a method among several browser fingerprinting techniques used for tracking online users. It enables websites to identify and monitor visitors by leveraging the HTML5 canvas element rather than browser cookies or similar means. This technique functions by exploiting the HTML5 canvas element. When a user visits a webpage, the fingerprinting script initially writes text using the preferred font and size and adds background colors. Subsequently, the script calls the Canvas API's ToDataURL method to retrieve canvas pixel data in dataURL format, essentially a Base64 encoded representation of binary pixel data. Lastly, the script hashes the text-encoded pixel data, creating a unique fingerprint.

3.9 out of 534 ratings

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Review's profile picture

GJMar 19, 2024

Activating the extension (setting "Random fingerprint") does seem to change the fingerprint on every reload on this site "https://browserleaks.com/canvas". However, on this site "https://fingerprint.com/" it keeps recognizing me. Even in Incognito/Private mode, after closing the browser or tab (and changing public IP-address using VPN). Although I do get the popup from this extension stating that the fingerprint is blocked. So, not sure if this extension is adequate if it only changes the ha... Show more

1 out of 2 found this helpful
Review's profile picture

Tom LandiSep 5, 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.

14 out of 18 found this helpful
Review's profile picture

Crunch BerryJun 22, 2022

Doesn't work. Still have a unique fingerprint.

5 out of 7 found this helpful

Details

  • Version
    0.2.0
  • Updated
    November 2, 2023
  • Offered by
    joue.quroi
  • Size
    59.76KiB
  • Languages
    English
  • Developer
    Email
    joue.quroi@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, visit the developer's support site

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