All Mac settings
Settings Pathfinder · Mac
Firewall
Protects your Mac from unwanted contact initiated by other computers on the internet or a network.
In macOS 27
System Settings then Network then Firewall
“On your Mac, choose Apple menu > System Settings, click Network in the sidebar, then click Firewall. (You may need to scroll down.) Turn on Firewall.” — Apple User Guide
Where it has lived
-
macOS 14 and later
System Settings then Network then Firewall
Checked against Apple's User Guides from macOS 14 onward. Menus can differ slightly by region, language, model and installed apps.
More Mac settings
Sources for this page
Last verified 8 Oct 2026
- 1 Block connections to your Mac with a firewall - Apple Support support.apple.com · guide for version 14.0
- 1 Block connections to your Mac with a firewall - Apple Support support.apple.com · guide for version 15.0
- 1 Block connections to your Mac with a firewall - Apple Support support.apple.com · guide for version 26
- 1 Block connections to your Mac with a firewall - Apple Support support.apple.com · current guide