Privacy Policy

Short version: Anti-Fingerprinting Shield does not collect, transmit, or sell any personal data. It has no servers, no accounts, and no analytics. Everything it does happens locally in your browser.

What this extension does

Anti-Fingerprinting Shield reduces browser fingerprinting by presenting websites with a consistent, realistic but fake device profile instead of your real one. All of this processing happens on your device, inside your browser.

Data we collect

None. The extension does not collect or transmit personally identifiable information, browsing history, location, credentials, communications, or website content. No data is ever sent to us or to any third party, because the extension has no back-end server and makes no network requests of its own.

Data stored on your device

The extension saves your own configuration locally using the browser's extension storage (chrome.storage.local). This never leaves your device and includes only:

• Whether protection is on or off, and your per-category protection toggles;
• A randomly generated number (a "seed") used to decide which cover identity each site sees;
• Your lists of trusted sites and per-site profile choices;
• Any custom profiles you create;
• A single aggregate counter of how many page loads have been protected. This is just a number — the specific sites you visit are never recorded or stored.

You can export, import, or clear this data at any time from the extension's settings.

Permissions

The extension requests only the permissions it needs to work, and uses them solely for protection — never to gather data:

• storage — to save your settings locally, as described above.
• scripting and host access — to run its own bundled protection code on the pages you visit so it can override fingerprinting APIs. Page content is not read, stored, or transmitted.
• tabs — to show which site the popup is protecting and to reload the current tab when you change a setting. Only the active tab's address is used, and it is not stored or sent anywhere.
• privacy — used only to optionally block WebRTC from leaking your IP address, by changing a single browser setting. No other settings are touched, and the change is reverted when you turn the feature or the extension off.

Sharing and selling

We do not sell or transfer any user data to third parties. We do not use or transfer data for any purpose unrelated to the extension's single purpose, and never for determining creditworthiness or for lending. There is no data to share in the first place.

Third-party services

The extension itself contacts no external services. Its optional Preview page offers links to independent fingerprint-testing websites (such as browserleaks.com and the EFF's Cover Your Tracks); if you choose to open one, that is a normal visit to that third-party site, governed by their own policies.

Changes to this policy

If this policy changes, the updated version will be posted on this page with a new "last updated" date.

Contact

Questions about this policy can be directed to 365DevNet via 365devnet.eu.