AudioContext Fingerprint Defender

Defending against AudioContext fingerprinting by reporting a fake value.

Users10K

Rating3.8

Reviews18

Manifest versionV3

7-day growth0

7-day growth rate0%

Preview

AudioContext Fingerprint Defender Media preview

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30-day rating change

Start

3.78

Latest

3.78

30-day rating change

0.00

2026年5月29日2026年6月4日

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Technical snapshot

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Version0.1.9

ManifestV3

Size41.04KiB

Languages1English

Published--

Store updated--

Last crawled--

Overview

Product summary

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AudioContext Fingerprint Defender is an extension that let you easily hide your real audiocontext fingerprint by reporting a random fake value and protecting your privacy.

This addon does NOT block AudioContext or any other web audio API methods, instead, it simply adds a small noise to the actual fingerprint and "renews" it every time you visit a website or reload a page. It is important to note that, this addon does not have any settings or options to adjust. Simply add it to your browser and start surfacing the internet. If you want to test this addon, please visit a website that shows your fingerprint (i.e. audiofingerprint.openwpm). Every time you reload the page, you will see a new fake fingerprint.

Note: depending on your browser and platform, you may need to (Shift+Refresh) a web page to renew the AudioContext fingerprint.

To report bugs, please visit the addon's homepage (https://mybrowseraddon.com/audiocontext-defender.html) and fill out the bug report form.

Reviews

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The Chrome Web Store shows 18 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

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AI product read

Defends against AudioContext browser fingerprinting by adding random noise to Web Audio API output values, reporting a fake fingerprint to tracking scripts.

Websites use AudioContext API to generate a unique audio fingerprint for browser tracking and user identification. This extension prevents that by corrupting the fingerprint data with small random perturbations, making each page load produce a different (fake) fingerprint.

Extension installs and activates automatically. Content scripts inject at document_start into every page, monkey-patching AudioContext/AudioBuffer prototypes with Proxy objects that add random noise. When a website attempts audio fingerprinting, the returned values are subtly corrupted. Users can optionally enable desktop notifications to be alerted when fingerprinting is detected. A popup and context menu provide a link to test fingerprint uniqueness.

Target users: Privacy-conscious users who want to prevent browser fingerprinting / Users concerned about online tracking via audio-based fingerprinting techniques

The explore.json lists related extensions by the same developer (e.g., Canvas Fingerprint Defender, WebGL Fingerprint Defender) as cross-promotion in the popup, but these are separate free extensions, not paid features of this extension.

Monetization

No paid features detected

No payment, subscription, billing, or premium feature gating code exists in the extension. The 'pro' keyword hits are all JavaScript .prototype and .__proto__ property accesses (e.g., 'e.prototype.__proto__.createAnalyser'), which is standard JavaScript prototype chain syntax, not 'pro' tier features. A 'donation' button in popup.html (line 51) simply opens the homepage with ?reason=support — this is a voluntary external donation link, not a paid feature within the extension.

Confidence: 97
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension works entirely locally within the browser. It intercepts Web Audio API methods (AudioBuffer.getChannelData, AudioContext.createAnalyser, OfflineAudioContext) and injects noise into fingerprint values. No authentication UI, no OAuth flows, no account creation, and no external service requiring login are present. The 'session' keyword hit in lib/chrome.js:111 refers to app.session.load(), a local session storage pattern, not user authentication.

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

Yubi

Independent publisher

Email: [email protected]
Phone: --
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