Comodo Firewall
Comodo's award-winning firewall provides users with prevention-based PC protection that slams the door shut on viruses, malware, and hackers.

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Features
- Defends your PC from Internet attacks
- Gain complete control what runs on your PC
- Prevents malware from ever being installed
- Automatic updates for the latest protection
- Winner of PCMag.com's Editor's Choice Award
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Price: 100% Free
Overview
Features
Frequent
QuestionsSupport
Video
Why use our Firewall?
Comodo Firewall Pro introduces the next evolution in computer security: Default Deny Protection (DDP). What is DDP? Most security programs maintain a list of known malware, and use that list to decide which applications and files shouldn't access a PC. The problem here is obvious. What if the list of malware is missing some entries, or isn't up to date? DDP fixes this problem to ensure complete security. The firewall references a list of over two million known PC-friendly applications. If a file that is not on this safe-list knocks on your PC's door, the Firewall immediately alerts you to the possibility of attacking malware. All this occurs before the malware infects your computer. It's prevention-based security, the only way to keep PCs totally safe.
Firewall is a component of Comodo Internet Security, which comes bundled with Comodo Antivirus. You have the option to only install Firewall if you prefer.
Firewall is also a part of Comodo Internet Security Pro, which gives you the most robust defense and inlcudes other components like WiFi security, live 24/7 expert assistance for numerous computing needs. Try it free for 30 days.
Firewall Features:
- Easily understood and informative alerts
- No complex configuration issues—perfect for amateur users
- Lots of configuration options let techies configure things just as they like
- DDP-based security keeps you informed and PCs safe
- Quickly learns user behavior to deliver personalized protection
- User-friendly, attractive graphical interface
One of the first steps in securing a computer is downloading and activating a quality firewall to repel intruders. Only this free firewall software has access to Comodo's extensive safe-list of PC-friendly applications, a key component of Default Deny Protection. Check out our firewall software today or upgrade to 360-degree protection with Internet Security Pro.
Get the most from Firewall with Internet Security Pro
System Requirements:
- WinXP or Windows Vista or Windows 7.0
- 64 MB RAM / 70 MB hard disk space
Price: 100% Free
Important Firewall Features
- Default Deny Protection
- Makes sure that only known PC-safe applications execute
- Prevention-based security
- Stops viruses and malware before they access your computer…so it isn't too late to stop them.
- Personalized alerts
- Firewall remembers which software is allowed to operate and changes its alerts accordingly.
- Automatic updates
- Stay current with the latest protection.
- Precise and specific alert system
- Warnings specify the level and type of possible threat from each source.
- Easy to configure
- Tell the free firewall to scan upon installation and add all current applications to the safe-list.
- Detailed summary screen
- Easily access an at-a-glance snapshot of current security settings
- Uncluttered, user-friendly interface
- Quickly navigate through the various parts of Firewall protection without getting lost
- Thorough security "wizards"
- Preset security settings for simple point-and-click setup
- Exclusive access to Comodo's "safe-list"
- List of over two million known PC-friendly files and apps. Privdes free firewall protection with the knowledge to let safe files and apps run.
- 'Training Mode' lets Firewall automatically create 'allow' rules
- Firewall software learns your trusted programs to minimize alerts
Firewall Software Frequently Asked Questions
- What's a Firewall?
- Firewall protection is a batch of security measures for your PC, designed to keep malware, viruses, and hackers at bay.
- And how is Comodo Free Firewall software different from the dozens of other firewalls out there?
- Our firewall software is the only true firewall protection operating with Default Deny Protection technology to ensure your computer's security.
- Sounds like Default Deny is important.
- It is. DDP™ grants you, the user, ultimate control of what's granted access to a PC.
- But I'm not making every decision, right? I couldn't handle that.
- Not at all! Our free firewall software has access to Comodo's safe-list of over two million known PC-friendly applications. When one of them accesses your PC, the firewall won't bother you because there's no reason to worry.
- OK, but what if a file I don't recognize asks for access?
- Our free firewall contains detailed alerts letting you know the severity of the threat, and the type of file asking to execute.
Support
Check out our user manual or support page for answers to all Firewall questions.
Download the Free Firewall User Guide
Here you'll find detailed technical information about the software in the user manual.
Visit our Forums
Our support forum contains easy-to-find answers to many common questions.
Email Support
If you can't find an answer within the manual or forums please email us at desktopsupport@comodo.com
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