User Reviews

Comodo Firewall

Comodo Firewall is a personal firewall that filters ingoing and outgoing traffic on your computer. It alerts you of any applications that attempts to connect to the Internet and allows you to permane ...

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Jan 31, 2008
For version:
3.0.14.276

Comodo firewall is all finesse and ease

Interface: 5
Features: 5
Ease of use: 5
Value: 5
Overall:

Comodo Firewall is a personal firewall which filters ingoing and outgoing traffic on your computer, just like the most expensive ones. It alerts you of any applications that attempts to connect to the Internet and allows you to permanently or temporarily allow or block the connection. Advanced users can customize the application easily but is not required unless you have a reason to. Have tested and used COMODO Firewall for two years now and it works excellent and tops many other very expensive software in this category and once it has learned your way of working on your computer, it's like not having any Firewall to worry about, as it's making your life easy. All in all no Cons but all Pros for this Firewall freeware.. Keep up the good work guys.

Review by: Alfredo (11)
Read all 11 reviews by Alfredo

Jan 13, 2008
For version:
3.0.14.276

Exellent!

Interface: 5
Features: 5
Ease of use: 5
Value: 5
Overall:

Very good piece of work! One must learn at the beginning how it works, but then one gets very well working security tool.

Review by: tnttnt
First post

Jan 06, 2008
For version:
3.0.14.276

The best one

Interface: 4
Features: 3
Ease of use: 5
Value: 5
Overall:

This firewall is the best that i saw since "Seagate Personal Firewall". The thing that important is easy to use. I replace the "Windows Firewall" (not a reference ;) ) by this one because after many firewall that i tried this one gave me everything that i looked for.

Review by: elcoz007
First post

Jan 01, 2008
For version:
3.0.14.276

Frustrating

Interface: 2
Features: 4
Ease of use: 2
Value: 3
Overall:

Have used version 2.4 along with every beta version of 3.0 up to and including the latest. All through this software journey I had to uninstall the present version in order to install the latest? I have also noticed anomalies that make me wonder, i.e. the final beta was approx. 33mb and then the final ended up being 9mb in size? In summary I would not recommend this firewall based upon the following; sometimes forgets settings,cannot pass its own firewall test!, very extensive and confusing multiple panel settings,poor support from Comodo's staff,etc..

Review by: alnjk01 (135)
Read all 135 reviews by alnjk01

Dec 30, 2007
For version:
3.0.14.276

Excellent freeware, but too complicated?

Interface: 3
Features: 3
Ease of use: 3
Value: 3
Overall:

First the good points: Works fine in Vista at a time when many programs do not. Also it is completely free and can compete on equal terms with many firewalls for which you have to pay. So why the doubts? There are too many balloon messages for the average user, and some of the features would be likely to confuse even an experienced person. I uninstalled this version after a while due to the excessive prompts, although there is nothing wrong with the program itself. Recommended, but only for the patient and experienced user.

Review by: ianmacm (83)
Read all 83 reviews by ianmacm

Dec 22, 2007
For version:
3.0.14.276

Staying with the old version !

Interface: 3
Features: 2
Ease of use: 1
Value: 3
Overall:

After checking out the new and fancy 3.0 version, I uninstalled it and went back to an older version I was/am very happy with "Comodo Firewall Pro_2.4.16.174". The 3.0 is just too complex for a normal person to understand ! Conclusion : I will recommend the 2.xx version of this program, not the 3.0 version :-)

Review by: User07 (2)
Read all 2 reviews by User07

Dec 15, 2007
For version:
3.0.14.276

Worth what you pay (=nothing)

Interface: 1
Features: 1
Ease of use: 1
Value: 2
Overall:

New version 3 obviously released before ready. You have to be an uber-geek to understand how to configure the software and how to respond to its warnings. The user interface - which was one of the weakest points in the previous version - has gotten WORSE - inconsistent, unwieldy - really a nightmare. A firewall is no good if the user can't understand how to set it up and evaluate the messages the firewall delivers and respond to prompts to allow or deny something - and this firewall doesn't speak any known human language.

Review by: HawaiiSurfer
First post

Dec 08, 2007
For version:
3.0

Best firewall for your money

Interface: 4
Features: 5
Ease of use: 5
Value: 5
Overall:

Zonelabs, Webroot, Outpost, and many others. Do not provide you what this one does, and it's free. UI looks very good, features are excellent, so easy a caveman can use it, and free is a very good price. Those of you, who uses Microsofts fire wall, This upgrade is for you. I have heard lots of problems about using Comodo with Avast. Well those are the two key programs I use, and I haven't had an ounce of problems. I'm XP and not Vista. The problems might arise in vista.

Review by: Tao2005 (21)
Read all 21 reviews by Tao2005

Nov 29, 2007
For version:
3.0

Comodo firewall

Interface: 4
Features: 4
Ease of use: 3
Value: 3
Overall:

Used this firewall several versions and was impressed at first,but the more I used it the more I noticed less than desirable behaviour. Blocking important sites,and programs without asking. Incessant pop-up questions that would repeat no matter what I told it.I wanted comprehensive firewall,not a baby sitter for my computer. It shows some nice features,but the bad outweighed the good,so bye bye.

Review by: grinch89 (2)
Read all 2 reviews by grinch89

Nov 24, 2007
For version:
3.0

The best firewall out there bar none

Interface: 4
Features: 5
Ease of use: 3
Value: 5
Overall:

This firewall package does it all when installed with the associated defense software (also included in the download); however, it comes with a fairly steep learning curve. This program has an auto-learning cycle, where it asks you a bunch of questions (over time) and you have to answer them correctly. So, if you are not technically inclined, I would just install the firewall (and skip the defense software). However, if you are looking for maximum protection, you must install the complete package. Once done (w/auto-learning completed), your PC will be fully protected against incoming intrusions and outgoing exploits (e.g. leaks). Of course, you must also have a good antivirus program installed as well. However, if you don't have one yet, my recommendation would be to download the free Avast AV software which I personally have been using for over two years without instance. Right now, I would stay away from the Comodo AV because it is still in Beta.

Review by: gusimio (26)
Read all 26 reviews by gusimio

Nov 21, 2007
For version:
3.0

The best!

Interface: 5
Features: 5
Ease of use: 5
Value: 5
Overall:

The best firewall and costs NO MONEY!

Review by: Hellraiser (14)
Read all 14 reviews by Hellraiser

Jul 30, 2007
For version:
2.4

Maybe the best freebie

Interface: 4
Features: 5
Ease of use: 3
Value: 5
Overall:

Needs patience while it "learns", but protection is excellent even using default settings. If you know what you're doing you can avoid the "learning" cycle, but the "help" could be better. Enough flexibility for professional use, works on servers as well as workstations, and supports multiple NIC's: most don't. Benchmarking I can't detect any noticeable performance hit on connections, and CPU usage is negligible. Amazingly comprehensive for freeware. So far no crashes...

Review by: mikesantana (34)
Read all 34 reviews by mikesantana

Jul 16, 2007
For version:
2.4

Resource-intensive, but comprehensive

Interface: 4
Features: 5
Ease of use: 4
Value: 4
Overall:

Comodo Firewall works very well. It's one of the better firewalls out there, and it's free to boot. I found it easy to use. However, it uses more memory than some other firewalls and occasionally it used a lot of CPU time, slowing down my computer (it would use 60% of the CPU at times for unknown reasons). This recurring problem led me to remove it eventually and reluctantly. :-( If you have a newer machine, this might not be an issue. Nonetheless, I recommend it, and hopefully you won't run into the same problem that I did.

Review by: tarquinbiscuitbarrel (3)
Read all 3 reviews by tarquinbiscuitbarrel

Jul 15, 2007
For version:
2.4

Good firewall

Interface: 4
Features: 4
Ease of use: 2
Value: 4
Overall:

This is a nice firewall. Definitely worth a try.

Review by: Duglacias (4)
Read all 4 reviews by Duglacias

Jul 02, 2007
For version:
2.4

The best free firewall.

Interface: 5
Features: 5
Ease of use: 4
Value: 5
Overall:

Comodo Firewall Pro is the best firewall that I have found so far. It has earned a "stealth" rating at Shields Up and has been easy to use. It has an Application Monitor,Network Monitor,Component Monitor,and Application Behavior Analysis. The early versions of Comodo were heavy on resource usage. Comodo listened to the complaints and made subsequent upgrades lighter on resources.Very responsive developers for freeware! This is version 2.4.18.184.This firewall has always been rock solid with no conflicts of any kind. Version 3.0 is in beta and sounds promising too. I have tried LookNStop,Kerio,Bit Defender,Sygate,Zone Alarm,Filsec,and a few others and I would take Comodo over any of them!

Review by: moparmac (21)
Read all 21 reviews by moparmac

Jun 19, 2007
For version:
2.4

User friendly

Interface: 5
Features: 5
Ease of use: 5
Value: 5
Overall:

I am very impressed with Comodo. I found that ZoneAlarm had too many ways to customize itself. I am not that knowledgeable and found that I had too many choices. ZoneAlarm is great but over my head. Comodo has done very well and I recommend it very strongly.

Review by: Edugeek
First post

Jun 17, 2007
For version:
2.4

The very best freeware firewall

Interface: 5
Features: 5
Ease of use: 4
Value: 5
Overall:

For me the very best freeware firewall. Rock solid and user friendly. Passes ALL the tests. This firewall and the other programs from the Comodo group is in constant development and they really do LISTEN to the views and opinions of their users. Check the forums !

Review by: bluehorizon (19)
Read all 19 reviews by bluehorizon

Jun 12, 2007
For version:
2.4

Best freeware firewall

Interface: 5
Features: 5
Ease of use: 5
Value: 5
Overall:

Probably the best freeware firewall to date. GUI is a bit weird, but other then that really nice protection.

Review by: jextuens (33)
Read all 33 reviews by jextuens

Jun 08, 2007
For version:
2.4

Really impressive product

Interface: 5
Features: 5
Ease of use: 5
Value: 5
Overall:

This is a REALLY impressive piece of work. I saw it got top honors in on the the best PC Magazines, but even so I wasn't thinking it would be this good. Particularly impressive is the fact you can switch Comodo Firewall to start up as part of the boot process, thereby preventing any other program beating it to the internet. Before using Comodo, I was using a very popular commercial firewall, but I know that it didn't work fully until a user logged in. Comodo's feature to do this was icing on the cake. Well done!

Review by: CharlesK (12)
Read all 12 reviews by CharlesK

May 15, 2007
For version:
2.4

The best firewall not just the best free

Interface: 5
Features: 5
Ease of use: 5
Value: 5
Overall:

Ive been using this firewall for several months now and love it I think its the best and check the leak test great thanks Comodo.

Review by: FastEddie
First post

Apr 16, 2007
For version:
2.4

A very good firewall

Interface: 3
Features: 3
Ease of use: 3
Value: 5
Overall:

Installed on my Windows XP home SP2 with all patches, Comodo is working real fine. A few days ago I installed Kaspersky 6.0 and both applications had no conflict what so ever and they were working fine. The speed of my internet connection was a little bit slower, but that is normal in these cases. The Firewall protects against flooding and rules could be added.

Review by: peter123
First post

Apr 07, 2007
For version:
2.4

Look out zonealarm, here comes comodo!

Interface: 5
Features: 5
Ease of use: 5
Value: 5
Overall:

I downloaded Comodo Pro firewall after ZoneAlarm wanted me to download a 35mb download! I'm on dial-up in the country, and the large size download (security suite has been bundled in, ala Windows/Microsoft products), and I can't imagine spending over 2hrs online every time an update is required. ZoneAlarm has been great for 5 years, but this bloated software isn't for me. Comodo appears to be all I look for in a firewall, and could be the ultimate sleeper application as far as ease of use, interface and price (It's Free!)is concerned. I'll be back to report on it's effectiveness at a later date, but they've got everything else right, so I think ZoneAlarm is history on my computer.

Review by: vigilant
First post

Apr 05, 2007
For version:
2.4

Comodo firewall

Interface: 4
Features: 5
Ease of use: 3
Value: 5
Overall:

I find the program easy and intuitive to use, with all the features I need.

Review by: scotty
First post

Apr 03, 2007
For version:
2.4

Break away from za

Interface: 4
Features: 4
Ease of use: 4
Value: 5
Overall:

I've been an avid user of ZA for many a year. Since I needed a break from this I tried Comodo, after PCTOOLS. It outperforms PCtools and ZA both. Why? All my internet related apps are greatly speeded up! even PCtools could not do this to the extend Comodo does. I KNEW I was missing some speed but finally I found out where is was; in my firewall. even XP is starting up much faster, because Comodo doesn't hog resourses and doesn't take the time to start up like ZA does! I'm anxiuosly looking toward their final release of their free antivirus program. If it's as good as their firewall, I'm hooked!

Review by: citizen_kane
First post

Mar 26, 2007
For version:
2.4

Needs work

Interface: 4
Features: 3
Ease of use: 2
Value: 3
Overall:

It started out looking great. Then I realized I couldn't get to my remote desktop because it sets up with a default rule that blocks almost everything. I removed the rule and everything started working great. Then it started asking for access from programs I had already given access and checked the box to remember my answer. Then the next time the program needed access it would ask again. I never remembers which programs are supposed to be granted access. It drove me nuts so I had to uninstall it.

Review by: Mindflux
First post

Mar 04, 2007
For version:
2.4

Too many problems

Interface: 3
Features: 4
Ease of use: 2
Value: 2
Overall:

First I really thought this will be the final solution for a personal firewall, but the longer I used it, the more my complete network got stuck more and more. First my WLAN got problems detecting networks, then it was constantly slowing down and finally it wasn't able to receive any IP address by DHCP anymore. And everything without changing any option in the firewall. I had to uninstall Comodo to get everything work again. So whatever the exact reason was, it surely was caused by Comodo. So I cannot recommend this program.

Review by: NickH666
First post

Mar 03, 2007
For version:
2.4

It blocked dns even when "allow all" was

Interface: 3
Features: 1
Ease of use: 1
Value: 1
Overall:

I finally got around to looking for a new firewall and decided to give Comodo a try. The install was fine. I looked over the interface, a little confusing but not too bad and it had the ability to customize the rules which is something I really like. Unfortunately it secured my PC a little too well. I couldn't do DNS lookups no matter what I tried. I set it to "allow all", I made the DNS server a trusted zone, I even exited the program, still no DNS. So I uninstalled and rebooted and hey, I'm online again. I looked nice, but I think it's trying a little to hard to the all-in-one security solution. I just want a good firewall.

Review by: AwfkiWhistler (7)
Read all 7 reviews by AwfkiWhistler

Mar 01, 2007
For version:
2.4

The best among all free and not-free

Interface: 4
Features: 5
Ease of use: 4
Value: 5
Overall:

I found this firewall as the best for personal use (the only use I give to it). Major Strengths: - Its effective - there are no leak tests that can break through and I've NEVER had someone breaking in. - It uses low RAM - The main file occupies max 7-8 Mb in my app list. - Its free. - No compatibility problems - I use it with NOD32 and before with Antivir and it works fine. No compatibility problem with any other software. Major problems / Issues: - Amount of warnings in the beginning can be annoying. However, the system learns (even though it can repeat warnings several times) and Ive noticed that the newest versions come with less and less false positives. After 3-4 reboots it doesn't ask me anymore for scvhost process. - To configure eMule or uTorrent is a bit complicated - Support forum explains how to go round it and it works fine after, but if you're a total amateur in computers you'll have some problems.

Review by: Paracelsus
First post

Feb 24, 2007
For version:
2.4

A powerful firewall

Interface: 5
Features: 4
Ease of use: 2
Value: 5
Overall:

This is a firewall which could be said to be ahead in many respects of even the best bought varieties. Highly impressive and a first class firewall, providing you can configure it satisfactorily. Unfortunately, it clashed with my standalone F-Secure Antivirus, e-mail client, Spyware Terminator and operating aspects of IE 7. I checked all the settings of my chosen programmes with a fine tooth comb and all were set at Allow for the applications mentioned. I checked log and error files etc, and went back over the enabling procedure manually, but to no avail. I was disappointed at having to uninstall this fine application, as I felt defeated.

Review by: prettyface (19)
Read all 19 reviews by prettyface

Feb 14, 2007
For version:
2.4

A nuisance

Interface: 3
Features: 3
Ease of use: 2
Value: 3
Overall:

After seeing the Snapfiles rating and reading the comments I decided to install Comodo firewall. I had been using the Sygate firewall but thought I needed something more modern. Comodo installs easily and the interface is OK (although for many maybe a bit too cluttered). One has to authorize programs to connect to the internet, so far so good, but it somehow doesn't seem to remember that authorization. Even when I click the "remember" field. It keeps asking and asking, again and again. This became such a nuisance that I decided to uninstall this program. I'm sure it does a decent job but it probably needs some working over. So I'm back to good old Sygate (I know, politically not correct) which although not supported anymore does a great job. It withstood all firewall tests I had done on it.

Review by: Ericks (8)
Read all 8 reviews by Ericks

Feb 08, 2007
For version:
2.4

Uninstall problems

Interface: 1
Features: 1
Ease of use: 1
Value: 5
Overall:

Comodo has various uninstall problems. If you enjoy searching and modifying the registry then whatever. Once you uninstall it still shows up as your firewall in Windows Security Center. Which can cause some problems. When you uninstall something, you want it gone right? So why did I uninstall it? Well when it asks you if you want to allow Firefox to connect to port 80 at google.com 40 times in a row even when you click remember this program, that becomes a problem. Support is sub par. The program needs a lot of work before I'll give it a try again. It looks like it's trying to be zone alarm, which works great so I can see why they would want something so similar. I've been working with every version of Windows since 3.x, so yes I believe I know what I'm talking about.

Review by: mattcn81 (2)
Read all 2 reviews by mattcn81

Jan 30, 2007
For version:
2.4

Wonderfully detailed but.....

Interface: 4
Features: 5
Ease of use: 3
Value: 5
Overall:

A wonderfully detailed and relatively easy to understand firewall. Nice to see the evaluation by Comodo link for all files not recognized by the program. Quite heavy on resource usage and noticeably slows up one's computer even at 1 Ghz of memory.

Review by: davyjones (8)
Read all 8 reviews by davyjones

Jan 26, 2007
For version:
2.4

Makes cpu grind

Interface: 1
Features: 1
Ease of use: 1
Value: 1
Overall:

This is a terrible product I noticed my CPU actually grinding after installation, no windows firewall running etc...everything checked out yes this is the culprit check task manager performance tab and watch this ravage your system. No other program I have ever used has had this effect.

Review by: Happy6
First post

Jan 21, 2007
For version:
2.4

Good security and flexibility

Interface: 5
Features: 5
Ease of use: 4
Value: 5
Overall:

I have used ZA for a number of years as my firewall, but finally gave up due to the sluggishness of the program. With Comodo, my computer and internet responses are faster and I feel that I have more flexibility in tailoring Comodo for my needs. A word of advice for new users of Comodo. During install select the Automatic rules setup instead of Custom. Then use the program for a while to allow or block applications for each occurrence before manually tinkering with the settings yourself. This program has lots of flexibility and you can mess it up big time if you don't know what you are doing.

Review by: whwmdw (4)
Read all 4 reviews by whwmdw

Dec 17, 2006
For version:
2.3.4.45

Right price, the best i have found.

Interface: 5
Features: 5
Ease of use: 4
Value: 5
Overall:

This is a very good Firewall, don`t be afraid to try it out. Install and forget. When installed it can scan for known applications so that you dont get so many pop ups to start with the first day of use.

Review by: ralphn (2)
Read all 2 reviews by ralphn

Dec 05, 2006
For version:
2.3.4.45

Looks good, but is it?

Interface: 3
Features: 3
Ease of use: 2
Value: 3
Overall:

I installed it on two computers and i was exited. I thought it was what i looked for. But after two days one computer couldn't connect to the Internet. I had to make rules to get there. A day later the other computer had problems connecting. So I de-installed it again.

Review by: fred_f (2)
Read all 2 reviews by fred_f

Nov 28, 2006
For version:
2.3.4.45

The best free firewall

Interface: 4
Features: 5
Ease of use: 4
Value: 5
Overall:

I have used ZA free,ZA pro,Sygate and now i'm using comodo and i'm very very satisfied..it's the most effective free firewall!!i had my pc infected by a trojan(zlob BU) and the firewall not only asked me if i wanted the trojan to have access to the internet but also informed me that the file was suspicious and it's either a trojan or a spyware so i blocked the operation(to have access to the internet) and i blocked any action of this file(its a feature of comodo)..that means that i prevent the trojan from doing its job(downloading other trojans of its family and harm my pc)in the first place..after that the antispyware takes action..that's what i call effective firewall..not only protects me from dangerous inbound connections but also protects me from sending personal info to others..its the first shield of my pc against malwares..I recommend it to everyone..TRY IT!!!

Review by: BJ_Ge0rgE (4)
Read all 4 reviews by BJ_Ge0rgE

Nov 24, 2006
For version:
2.3.4.45

Great firewall

Interface: 5
Features: 5
Ease of use: 5
Value: 5
Overall:

I used Norton, ZA, Sygate, Kaspersky and some other software. There were some in each like installing/uninstalling issues, high system resource needs. This firewall seem to be the best alternative with its features. Interface is clean and handy. Plus warnings and messages are much better. You can make a search for known programs and Comodo can set the rules automatically for those programs. If you did not pay for another use this one..

Review by: firegate (4)
Read all 4 reviews by firegate

Nov 21, 2006
For version:
2.3.4.45

Was complicated - getting much easier now.

Interface: 5
Features: 5
Ease of use: 2
Value: 5
Overall:

This firewall and I got off to a rough start. For the past 3 months (give or take) I have been trying to master this firewall by making my own custom rules for it, and when it wouldn't work, I would uninstall it. Well, I kept reinstalling because I know a good firewall when I see one, and eventually I got the hang of creating personalized rules for it, thanks to members of the comodo forum. Anyways, I have it set up the way I want it to be, and I have to say that now I am pleased with this firewall, and even more so now that it is taylored for my surfing habits. This firewall really is an exceptional firewall, and it has more features than any other firewall I have ever tried. True, it has a huge learning curve, when it comes to creating custom rules, but patience and a little help from the good people at Comodo, that learning curve just gets smaller and smaller. Try it out for yourself, it works great right out off the box, and it's very secure too.

Review by: jbseventyone (11)
Read all 11 reviews by jbseventyone

Nov 18, 2006
For version:
2.3.4.45

One word, impressive

Interface: 4
Features: 4
Ease of use: 5
Value: 5
Overall:

Been a user of ZA and KPF, and both are great firewalls when you pay for the product... they both also have issues (not going to get into them now). I downloaded the latest Comodo Firewall (v2.3.6.81) and was pretty much impressed from the start. It has excellent configuration options (may be overwhelming for some) and a smaller footprint than ZA Pro. Also, the company has an online forum that is top notch. My initial reaction is impressive. I have removed ZA and Sunbelts (never updated) KPF. Comodo is a keeper!

Review by: SithTracy (18)
Read all 18 reviews by SithTracy

Nov 14, 2006
For version:
2.3.4.45

The best

Interface: 5
Features: 5
Ease of use: 5
Value: 5
Overall:

I believe this to be the best firewall available and it is free