WebGL Fingerprint Defender

Defending against WebGL fingerprinting by reporting a fake value.

Users100K

Rating3.5

Reviews32

Manifest versionV3

7-day growth0

7-day growth rate0%

Preview

WebGL Fingerprint Defender Media preview

2 assets

Trend

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User Growth Over Time

Rating trend

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30-day rating change

Start

3.47

Latest

3.47

30-day rating change

0.00

2026年5月30日2026年6月5日

Growth overview

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1-day growthFlat

00%

7-day growthFlat

00%

30-day growthGrowing

+80K+400%

Technical snapshot

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Version0.1.8

ManifestV3

Size44.23KiB

Languages1English

Published--

Store updated--

Last crawled--

Overview

Product summary

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WebGL Fingerprint Defender is a browser extension that let you easily hide your real WebGL fingerprint by reporting a random fake value.

According to many tech blogs, completely blocking WebGL API is not a good idea, therefore reporting a fake fingerprint could be the best solution to better protect your privacy. This add-on simply adds a small noise to the actual fingerprint and renews it every time you visit a website or reload a page.

With the browser's WebGL API, in general, two types of fingerprints can be generated. One with WebGL constants and the other with an image that is rendered with the WebGL API. This add-on can spoof both values at the same time.

To disable this add-on, please visit the extensions page in your browser and then click on the disable button. Please note that this add-on does not have any toolbar icon/button.

This extension is made in collaboration with the author of "Canvas Fingerprint Defender":

https://chrome.google.com/webstore/detail/canvas-fingerprint-defend/lanfdkkpgfjfdikkncbnojekcppdebfp

Reviews

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The Chrome Web Store shows 32 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★

4★

3★

2★

1★

Similar and related extensions

Review related products from the Chrome Web Store detail page.

AudioContext Fingerprint Defender

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Canvas Fingerprint Defender

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Defending against Canvas fingerprinting by reporting a fake value.

Font Fingerprint Defender

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Defending against Font fingerprinting by reporting a fake value.

WebRTC Control

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Have control over WebRTC (disable | enable) and protect your IP address.

Canvas Blocker - Fingerprint Protect

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

CthulhuJs (Anti-Fingerprint)

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Your browser, your rules — your digital fingerprint, in your control.

AI product read

WebGL fingerprint spoofing — intercepts and replaces real WebGL API responses with randomized fake values to prevent browser fingerprinting

Protects user privacy by preventing websites from tracking users through WebGL-based browser fingerprinting, without completely blocking WebGL (which would break web functionality)

Extension installs and immediately activates. Content scripts (page_context/inject.js) run at document_start in MAIN world on all pages, proxying WebGL API methods to return fake values. When fingerprinting is detected, the isolated content script (inject.js) relays a notification to the background script, which optionally shows a desktop notification. User can toggle notifications and test fingerprint via the popup UI. No configuration or login required.

Target users: Privacy-conscious browser users who want to prevent WebGL-based tracking / Users who prefer spoofing over blocking WebGL entirely

Extension has no toolbar icon by design (stated in store description), so the popup is only accessible via chrome://extensions — this is unusual but intentional
The explore/ section in popup loads extensions from the same author but this is promotional, not a core feature

Monetization

No paid features detected

No paid features detected. All 'pro' keyword matches are false positives from JavaScript prototype/property references (e.g., 'e.stopPropagation()', 'target.prototype', 'properties.index'). The popup has a voluntary 'donation' button (popup.html line 50) that opens the homepage with ?reason=support, but this is not a gated paid feature. No payment processing, subscription logic, premium feature gating, or billing APIs exist in the codebase.

Confidence: 95
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension operates entirely locally in the browser with no authentication flow. It uses chrome.storage.local for local preferences only (notification toggle, last update timestamp). No account creation, login forms, or external service authentication is needed to use the core functionality. The 'session' keyword hit in lib/chrome.js line 111 is a generic app.session.load() call for internal state management, not a login session.

Permission risk

Medium-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：storage

Publisher

Keller

Independent publisher

Email: [email protected]
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