Custom Message Composer extension

Security at a glance

Low riskSafety score 93/1004 findings

Automated estimate from our latest scan (malware, permissions, obfuscation) — not a security audit. Higher safety score is better.

See the full security report

Firefox listing ID: custom-message-composer

Permissions (1)

  • View open tabs

Frequently asked questions

Is Custom Message Composer safe to use?

Our latest automated scan rates the Firefox listing of Custom Message Composer at 93/100 (low risk) — malware, permission and obfuscation checks combined. The full report lists every finding behind the number.

What permissions does Custom Message Composer require?

Custom Message Composer requests 1 permission. The most significant: View open tabs. See the full breakdown in the security report.

Who develops Custom Message Composer?

Custom Message Composer is published by Knowles. Impersonators copy popular extension names, so always verify the developer line and listing id on the store page before installing.