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Is LiberSign safe?

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

Clean risk

Legitimate French digital signature extension using native messaging. Content script exposes native host to all web pages via a postMessage handler that does not validate event.origin (content.js line 45), allowing any script on any page to send arbitrary commands to the native signer process.

0Risk

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

Publishers can request a review.

Updated 10 April 2026jligpldajocilccnnokfnghlamfhnppc

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