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 canvas fingerprint on every page reload.
- One of the few extensions that genuinely works.
- Best fingerprint blocker for Chrome.
- Works well in private/incognito mode for some users.
- Doesn't always effectively change the fingerprint across all sites.
- Fixed Fingerprint mode is not randomized between profiles.
- Still leaves a recognizable fingerprint for some users.
- Notifications can be annoying and are not user-configurable.
- Doesn't work against certain fingerprint detection sites.
- Fixed Fingerprint mode is not effective across multiple profiles.
- Users notice persistent unique fingerprints despite using the extension.
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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