A firewall protects your computer against unwanted guests from the Internet.
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Little Snitch. It might
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Radio Silence lets you block individual apps from accessing the internet. It never throws pop-ups on the screen, and is completely invisible.
TCPBlock is a lightweight and fast outbound firewall for Mac OS X 10.5 or later developed by delantis.com. Very simply to set up and use. And best of all it doesn't nag.
Hands Off! is an application to monitor and control the access of applications to your network and disks. Being able to monitor the normally unnoticeable activities enables you to make informed decisions...
IPFW Firewall Frontend * uses Mac OS X built-in IPFW firewall. No kernel modules, no extensions, no pain. WaterRoof is free and open-source * the most advanced Mac OS X free graphic frontend for...
IceFloor is the first OS X free graphic frontend for PF. Configure the PF firewall in a few clicks using a very simple interface and a step by step in-app configuration guide (Quick Start).
Spark Plug is a lightweight firewall that blocks all apps from the network, except the ones you really need.
NoobProof is a firewall configuration tool for Mac OS X . NoobProof has a list of services. Each service can be allowed or blocked. You can also selectively allow or block specified hosts or subnets. You can...
As Apple's built-in Firewall preferences improves in both functionality and security, I will be aiming Flying Buttress more at users who need the advanced firewall configuration, logging, and IP sharing...
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