ClientRects Fingerprint Defender is a Chrome browser extension designed to combat ClientRects fingerprinting by providing a fake value. This extension allows users to obscure their actual ClientRects fingerprint by consistently reporting a randomized fake value, enhancing online privacy and security.

The extension works by introducing slight variations to the real fingerprint, ensuring that each visit to a website or page reload generates a new fake value. By disrupting the accuracy of the fingerprint generated through the getClientRects() method in JavaScript, users can protect their online anonymity effectively. Notably, to deactivate the add-on, users can easily access the extensions page in their browser and disable it with a simple click, as the add-on does not feature an options page.