Note: This review addresses version
Willing to put up with some annoyances to get great free
firewall protection? Check out Comodo Firewall, an extremely
effective protection tool for keeping yourself safe from Internet
dangers. It blocks Trojans, hackers, and other threats–without
charging you a penny.
When you install Comodo Firewall, you have a choice to install
only the basic firewall, the “Firewall with Optimum Proactive
Defense” (which also protects against malware which can bypass
firewalls), or the Firewall with Maximum Proactive Defense+ (which
does what the former does, plus protecting against
“leaks”–information about things such as open ports being sent out
over the Internet). The higher the level of protection, the greater
the firewall’s intrusiveness. You can change the level of
protection later, when you’re running the program.
Installing the program requires close attention. At defaults,
you could end up with bundled products and unwelcome surprises.
After downloading the entire Comodo
Internet Security package, you can choose to install an
antivirus application, the firewall, a 30-day trial of Comodo’s
LivePCSupport, or any combination of the three. For this review, we
installed only “Firewall with Optimum Proactive Defense.”
During installation the Comodo Firewall will change your default
search engine to Ask.com, make Hopsurf.com your home page, and
install the Hopsurf.com toolbar–unless you uncheck those options.
And you can also opt to use Comodo’s DNS servers instead of your
default DNS servers, although the default is to use your own.
Once you’re in the program, though, things get more
straightforward. After you install Comodo Firewall , when an
application needs to make an Internet connection, the firewall will
ask whether you want to allow that connection. If you know the app,
allow it to make the connection; if you don’t, tell the firewall to
block it. Comodo cuts down on the number of these annoying pop-ups,
because it knows about a number of applications that are safe–such
as browsers and e-mail clients–and lets those through without
For basic operation, that’s all that you need to know, but if
you want to customize Comodo’s functioning, you can do that as
well. There’s a wealth of techie information available. Most people
won’t need it, and will be satisfied to let the firewall work on
If you use Maximum Proactive Defense+, you’ll be asked when
programs try to make certain system changes, such as altering
portions of the Registry. You’ll have to balance safety with being
annoyed. You can also turn that part of the program on and off.
More important than interface of a firewall is effectiveness,
and here Comodo Firewall Pro shines, according to the Matousec.com set of
firewall tests. It rates Comodo Firewall Pro well ahead of other
firewalls–over the last year, the firewall rated 95% every time it
was tested. By way of contrast, Norton Internet Security’s firewall
ratings range between 66% and 71%, McAfee’s were at 12%, Panda
Internet Security between 4% and 12%, ZoneAlarm Free at 11%, and
ZoneAlarm Pro at 72%.
If you’re willing to put up with a very annoying installation
procedure, and you don’t mind occasional interruptions, Comodo
Firewall is a keeper. It’s strong, and you certainly can’t beat the
price. If the installation issues turn you off, you might want to
try a less intrusive firewall, or just use what’s built into
Note: This software comes in 32-bit and 64-bit versions.
This is the 64-bit version, which is for 64-bit PCs running a
64-bit OS. If your PC is running a different supported OS, please
32-bit version instead.