

Comodo Firewall Pro is the latest breed of firewall that is designed with defeating leaktests, it is currently (July 2007), the top personal firewall (free and paid) in beating leak tests (opinions differ on how important this is though), although at the cost of being resource heavy and complicated to use. It is also currently (July 2007) one of the few freeware firewalls to support Vista. ZoneAlarm is perhaps THE personal firewall that started the trend of using personal firewalls among home users and it is still very popular. ZoneAlarm Firewall Free Version - alternative download.Outpost Firewall Free (no longer in development).Sygate Personal Firewall (no longer in development).Kerio Personal Firewall 2.15 (no longer in development).Jetico Personal Firewall V1.0 (no longer in development).Another option is to combine a solid basic personal firewall with a strong freeware HIPS.

Many personal firewalls, have moved towards incorporating HIPS features because this is the only way to defeat leak tests. Vista users have the option of just relying on their builtin firewall because it includes outbound filtering, though this is turned off by default. Comodo Firewall however bucks this trend. In recent years, many of the freeware firewalls were either abandoned (Kerio 2) or companies that produced them were sold (Sygate) and many of the freeware offering are very old outdated products (Outpost Free). For non-security purposes, many users prefer to use a personal firewall to control outbound connections as well. However it is limited to only inbound filtering. Windows XP SP 2 users already have a built in firewall. Selection of personal firewall snapshots:
