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Is Five9 Softphone Extension safe?

This security report analyses whether Five9 Softphone Extension is safe to install on your browser. We check Five9 Softphone Extension for malicious behaviour, data exfiltration, suspicious permissions, and known vulnerabilities so you can decide if Five9 Softphone Extension is safe for your personal or enterprise fleet.

Low risk

Enterprise VoIP extension with a postMessage handler that implements validation checks but could use stricter origin verification. Limited to Five9 domains with localhost-only WebSocket communication.

v11.5.1Chrome Web Store
0Risk

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

Publishers can request a review.

Updated 10 April 2026ngfbofmmhadhjnlodckfafckdhmlcpeh

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