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Is YouTube Windowed FullScreen safe?

This security report analyses whether YouTube Windowed FullScreen is safe to install on your browser. We check YouTube Windowed FullScreen for malicious behaviour, data exfiltration, suspicious permissions, and known vulnerabilities so you can decide if YouTube Windowed FullScreen is safe for your personal or enterprise fleet.

Low risk

YouTube Windowed FullScreen is a browser extension that provides fullscreen video viewing within the browser window on YouTube. The extension inclu...

0Risk

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Updated 10 April 2026gkkmiofalnjagdcjheckamobghglpdpm

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