Comodo has just released a new version of Comodo Firewall Pro 3 - it’s clearly one of the most popular firewall programs for Windows XP and Vista.
Like rival ZoneAlarm, Comodo Firewall prevents programs (executables) from connecting to the Internet without your knowledge and also filters incoming traffic that may not be safe. Whenever the firewall detects some fishy behaviour, you are informed with a pop-up alert. (see screenshot)


