zonealarm free firewall

Safety.Net - Internet security,content security and Internet firewall protection

Provide connection to the Intenet to the LAN. Firewall, Automatic, Simple, Safe.

You can bypass any proxy and firewall with Surfnolimit_bypass_proxy

traffic accounting and Internet sharing tool with traffic shaper and firewall

Barbwire - Industrial strength firewall

WaterRoof is an IPFW firewall frontend for Mac OS X with a easy interface

Proxy server with access control, dynamic web content filter, firewall and NAT.

An ultimate personal firewall that blocks hackers and unauthorized users.

A rule based packet and application filtering firewall.

iPhone firewall software, which can reject call/SMS, protect user's privacy.