About Comodo Firewall

Comodo Firewall is a powerful and free firewall solution designed to provide advanced protection beyond what Windows’ built-in firewall offers. Developed by Comodo Security, it brings a multilayered defense system using both local tools and cloud intelligence to protect against modern threats such as viruses, Trojans, zero-day exploits, and hacking attempts.

Its lightweight design and user-friendly interface make it accessible to both beginners and experienced users. Comodo Firewall is bundled with helpful extras like SecureDNS for safe browsing and the Chromium-based Comodo Dragon browser, offering enhanced speed and privacy.

What Comodo Firewall Does

  • Real-Time Network Monitoring
    Comodo continuously monitors incoming and outgoing network traffic, blocking suspicious or unauthorized connections and ensuring only safe data passes through.

  • Zero-Day Threat Prevention
    Thanks to its cloud-based behavior analysis, Comodo can detect and stop unknown threats before they cause harm — especially helpful in defending against zero-day attacks.

  • Smart Auto-Sandboxing
    Untrusted applications are automatically run in a secure, isolated environment, preventing potential malware from affecting your system.

  • Defense+ Technology
    This feature restricts system-level modifications by unauthorized applications, adding a deeper layer of security.

  • SecureDNS Integration
    Comodo’s DNS service blocks access to known malicious websites and offers a safer browsing experience without needing to manually change your network settings.

  • Custom Security Profiles
    Users can choose network profiles like Home, Work, or Public, each with appropriate default rules to match the environment.

  • Comodo Dragon Browser
    This browser offers a Chrome-like experience with added security and privacy features — ideal for users who want secure browsing out of the box.

Comodo Firewall is one of the best free firewall solutions available today. It offers enterprise-level features like real-time threat analysis, automatic sandboxing, and deep customization-all in a free package. It’s easy to set up, unobtrusive during daily use, and provides strong out-of-the-box protection.

If you’re looking for a firewall that goes beyond basic security without adding complexity, Comodo Firewall is an excellent choice.