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GitHub - objective-see/LuLu: LuLu is the free macOS firewall
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![20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box](https://www.widgetbox.com/wp-content/uploads/2019/05/one-period-hands-off.jpg "20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box")
20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box
Firewall Software For Mac Free Download
![20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box](https://www.widgetbox.com/wp-content/uploads/2019/05/firewall-2x.png "20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box")
20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box
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Block outgoing connections on Mac OS using a free firewall app
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![20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box](https://www.widgetbox.com/wp-content/uploads/2019/05/vallum-uptechy.jpeg "20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box")
20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box
Objective-See: LuLu
Objective-See: LuLu
17 best free firewall software (for Mac, Windows, and Android collectively) - PrivacySavvy
GitHub - doug-leith/appFirewall: A free, fully open-source application firewall for MAC OS High Sierra and later. Allows real-time monitoring of network connections being made by applications, and blocking/allowing of these per app
![20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box](https://www.widgetbox.com/wp-content/uploads/2019/05/murus-firewall.jpg "20 Best Firewall for Mac [Free Apps for Top Security] - Widget Box")