Canvas Blocker - Fingerprint Protect Chrome Extension
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Extension summary
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:
- Random noise
- Random noise (per page) to maintain a consistent identity within the current page session
- Fixed noise to sustain a constant yet unique identity continuously
Key Features:
- Minimal footprint fingerprint defender
- Ability to block or disable fingerprinting on specific hostnames
- Notification when canvas fingerprinting is detected
- Option to disable notification for select or all hostnames
- 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.
See moreUser reviews
- Changes the signature on every page reload
- Generates a new signature at every detection
- It can work effectively in some cases
- Users appreciate the functionality and effectiveness of the extension
- Good for preventing tracking through canvas fingerprinting
- Does not consistently prevent unique fingerprints across all websites
- The 'Fixed Fingerprint' option does not randomize fingerprints in multi profiles
- Does not pass certain fingerprint spoofing tests consistently
- Users experience notifications that cannot be disabled
- Many users report that it does not work against some fingerprinting techniques
- Doesn't work against canvas fingerprinting on some sites
- Fixed Fingerprint feature doesn't work properly across multi profiles
- Users question the effectiveness when needing proof that it works
- Some users report conflicting experiences when testing the extension
- Appreciation for the tool but requests for improvements
User reviews
Extension safety
Risk impact
Canvas Blocker - Fingerprint Protect requires a few sensitive permissions. Exercise caution before installing.
Risk likelihood
Canvas Blocker - Fingerprint Protect has earned a good reputation and can be trusted.
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