Why Comodo Firewall Pro?

  • Includes A-VSMART prevention technology (Anti Virus, Spyware, Malware, Rootkit and Trojan) that prevents harmful applications from getting installed on your system
  • White list of trusted applications recognizes nearly one million applications
  • Doesn't need configuring!
  • Cannot be shut down by Trojans or viruses!
  • Recognized by Windows XP SP2

Comodo Firewall Pro is constantly evolving. Each new release sees the addition of more sophisticated features designed to improve your security and user experience

What's new in Comodo's Firewall:

New in version 3.0

New!! Clean PC Mode

This is PATENT-PENDING feature takes a profile of a new PC and all the applications in it and registers them as safe. Then, any new application trying to gain access to a computer will be denied access to the PC unless the user expressly permits it since it is assumed to be potentially unsafe. This feature prevents most types of malware and rootkits from getting installed and keeps a new PC virus and malware free.

New!! Defense+ Host Intrusion Prevention System

Defense+ is one of the most advanced Host Intrusion Prevention Systems available in any desktop security program. This new addition helps to secure desktops and servers against rootkits, inter-process memory injections, key-loggers and more. Leveraging Comodo's safe-list database of nearly 1,000,000 trusted executable files, Defense+ can block malware and viruses before they ever get a chance to install on your system.

Improved!! Advanced Network Firewall Engine

Comodo Firewall Pro has always offered the highest levels of perimeter security against inbound and outbound threats - meaning you get the strongest possible protection against hackers, malware and identity thieves. Now we've improved it again by adding new features such as Stealth Mode to make your PC completely invisible to opportunistic port scans; Wizard based auto-detection of trusted zones; Password protection of firewall settings; Diagnostics to analyze your system for potential conflicts with the firewall and much more.

Improved!! Security rules interface

Version 3.0 gives offers more control over security settings than ever before. Users can quickly set granular internet access rights and privileges on a global or per application basis using the flexible and easy to understand GUI. This version also sees the introduction of pre-set security policies which allow you to deploy a sophisticated hierarchy of firewall rules with a couple of mouse clicks.

Improved!! Graphical User Interface

We've completely redesigned the look and feel of Comodo Firewall to make it even easier for you to do what you need to do. The default summary screen gives you an immediate heads-up on all vital security settings and provides a central point of navigation to every part of the application. We've also built in context sensitive help throughout the program so you'll never be far from advice if you run into difficulties.

Improved!! Pop-Up Alerts

Whenever the firewall detects a potential threat, you are immediately informed with a pop-up alert. Each alert includes a Security Considerations section which provides clear advice on whether you should allow or block a process.

New!! Training Mode

Comodo Firewall Pro version 3.0 won't needlessly stop your workflow with alerts for applications you obviously want to trust. By selecting 'Train with Safe Mode', the firewall will learn how your trusted applications work and silently create rules for them.

New!! Application Recognition Database

Comodo Firewall Pro now includes a proprietary and continually updated white list of nearly 1,000,000 safe executables. The integrity of every executable is checked against this database to determine whether or not it is genuine before it allows it installation rights. Firewall Pro will alert users of potentially damaging applications before they are installed. In many cases, this proactive approach averts damage from viruses or root-kits that are not known to anti-virus software.

Improved!! Event logging

Version 3.0 features a vastly improved log management module - allowing users to export records of firewall activity according to several user-defined filters. Beginners and advanced users alike will greatly benefit from this essential troubleshooting feature.

Free Firewall Software Download

New in version 2.4

New!! Multi language capabilities. Releasing version 2.4 with following 13 languages:

  1. Chinese (Traditional)
  2. Chinese (Simplified)
  3. Dutch
  4. French
  5. Greek
  6. Hungarian
  7. Portuguese (Brazilian)
  8. Portuguese (Continental)
  9. Russian
  10. Spanish (LA)
  11. Spanish (Spain)
  12. Swedish
  13. Turkish

New!! Activity->Connections sections shows per connection bytes in/out

New!! Firewall icon shows animation as per incoming/outgoing traffic in system tray

New!! At times certain folder could remain locked when using firewall

New!! The bug causing SHA1 replies to be forgotten

New!! Few BSODs reported via forums and support

New!! Now firewall does not require user to activate license. It comes with lifetime free license on installation itself.

New!! Significantly improved self defense

  • Defense against automated windows messaging (Simulated mouse clicks)
  • File digital certificate verification for own binaries
  • Fixed DOS conditions in self defense handling
  • Fixed system driver crashes
  • Fixed some bugs that can cause privilege escalation

IMPROVED! Improved OLE automation handling

IMPROVED! Fixed some minor bugs in tool tip texts

IMPROVED! Removed non-TCP/UDP application alerts until version 3.0

New in version 2.3

New!! Submit suspicious files for analysis by Comodo - instantly!! Whenever Comodo Firewall Pro detects unknown application components it immediately provides a link for the user to send these for analysis

New!! Added Protocol Analysis Option - key to the detection of fake packets used in denial of service attacks.

New!! Packet Checksum Verification - ensures data packets haven't been tampered with before they reach your machine by recalculating and comparing the checksum of every data packet it receives.

New!! Enhanced self protection against malware tampering - Firewall registry entries and files cannot be deleted or modified either accidentally or deliberately - stopping malware and hackers from being able to sabotage your installation.

  • Application Component Authentication - validates all the components of an application before allowing it internet access.
  • Application Behavior Analysis - analyzes each application behavior and detects any suspicious activity before allowing internet access.
  • Defense against Trojan Protocols - advanced protocol driver level protection
  • Smart Alerts - Every alert includes a Security Consideration section with advice to users.
  • Windows Security Center Integration - Windows XP SP2 recognizes Comodo Firewall Pro
  • Self Protection against Critical Process Termination - cannot be shut down by Trojans, Spyware or viruses.
  • PC Security during PC Start Up - includes the option to secure the host while the operating system is booting.
  • Automatic Updater - includes an interactive automatic updater component so that users can check for updates any time.
  • Error Reporting Interface - includes an XP style bug reporting interface.
  • Firewall Logging - reveals all the activities with detailed descriptions of the events.
  • Security Rules Interface - combines with an easy to use GUI.
  • Application Activity Control - watches each application in detail by showing addresses, ports and amount of traffic.
  • Graphical User Interface - enables or disables any part of the firewall with one click
  • Application Recognition Database - recognizes over 10000 applications and determines their security risks.
Purchase Comodo Internet Security

24/7 Support. We aren't talking phone support. We are talking about doing the hard stuff for you. Our support team fixes your problems, so you don't have to. Give it a shot, Try it FREE for 30 days and leave the work to us.


  • Firewall Protection
  • Antivirus Software
  • Proactive Security
  • TrustConnect™


  • PC Tune Ups
  • Virus Removal
  • Software Installation
  • 24-7 Support

Purchase Comodo Internet Security

Purchase Comodo Internet Security
Internet Security Support

Internet Security Support


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Your subscription allows you receive unlimited* service sessions during the term of your subscription. You can renew the services upon the expiration of your subscription. All services are subject to your acceptance of the Comodo Term & Conditions. Product features may be added, modified, or removed during the service period. All services required high-speed Internet access.
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