Firebox System Manager Download New! May 2026

1. What is Firebox System Manager? Firebox System Manager (FSM) is a legacy, lightweight, Windows-based management utility for WatchGuard Firebox devices (XTM, X Core, and older models). Unlike the modern WatchGuard System Manager (WSM) , FSM focuses solely on real-time monitoring, log viewing, and basic device interaction without the full policy management suite.