Is PDF Viewer safe?

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

Clean risk

PDF Viewer v4.6.129 is the official Mozilla PDF.js extension, an open-source PDF renderer that replaces the browser's built-in PDF viewer with the same PDF.js engine used in Firefox.

v4.6.129Chrome Web Store

0Risk

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

Publishers can request a review.