If you don’t see a toggle switch below “Microsoft Defender Firewall,” check to see if there is a firewall controlled by a third-party app, such as an antivirus program listed above “Microsoft Defender Firewall. " If you see a third-party app listed, click Open app below the listed app. Locate the firewall settings in the third-party app and disable them.
On older versions of Mac OS, this option may be Security instead.
If you see Turn On Firewall instead, your Mac’s firewall is already off.
You may first have to confirm that you wish to perform this action by clicking OK or Yes on a pop-up window. If you see a yellow bar at the top that says “These settings are being managed by vendor application [application name],” this means that your firewall settings are being managed by a third-party application such as an antivirus program. You will need to disable your firewall settings inside that app. Open the program mentioned in the yellow bar and locate the firewall settings. Disable the firewall settings inside the app.
You may be prompted to enter your Administrator password here.
If you cannot turn off the firewall settings or indicates the firewall settings are being controlled by a third-party program or vendor, this means that your firewall is being controlled by a separate application, such as an antivirus program. Open the application that is controlling your antivirus settings and locate the firewall settings and disable them from inside the third-party app.
You may first have to hover your mouse cursor over this corner to prompt the button to appear. You can also press the key with the Windows logo on your keyboard to open the Start menu.
If you don’t see this option, first click the General tab at the top of the page. If you cannot turn off the firewall settings or indicates the firewall settings are being controlled by a third-party program or vendor, this means that your firewall is being controlled by a separate application, such as an antivirus program. Open the application that is controlling your antivirus settings and locate the firewall settings and disable them from inside the third-party app
