Set up firewall rules for an application on Mac

Applications that run on your Mac connect to the Internet to download updates or to send information about a program. For example, when you open Apple iTunes, it connects to the Internet to get the latest Store information of iTunes. If you trust the application, you can allow the application to connect to the Internet.

In some cases, you may want to deny Internet access for some applications. For example, your Norton product notifies you about an application that tries to connect to the Internet. You can block the Internet connection for the application to prevent it from sending or receiving any malicious information.

You can use the Application Blocking window to configure the Internet access for an application. The selected application appears in the Settings list in the Application Blocking window. The application name and the firewall setting that you select appear in the Settings list in the Application Blocking window.

Set up firewall rules for an application

1. Open your Norton device security product.

   If you see the My Norton window, next to Device Security, click Open.

2. In the Norton product main window, click Advanced or Settings.

3. On the left pane, click Firewall.

4. In the Application Blocking row, click the settings icon.

5. In the Application Blocking window, click Add application.

   If the application that you want to choose does not appear in the list, click Other to search for the application.

6. In the Choose Application dialog, select the required application.

7. Click Choose.

   The name of the application that you have added appears in the Settings list in the Application Blocking window.

8. Click Done.

Need more help?

• Customize the firewall rule for an application on Mac

• Remove the firewall rule for an application on Mac