To add a new Palo Alto firewall to Panorama, follow these steps:

1. Log in to the Panorama web interface.

2. Click on **Panorama** in the menu.

3. Select **Interconnect**.

4. Choose **Devices**.

5. Click on **Add Firewall**.

6. Enter the serial number of the firewall.

7. Select the Panorama node that will manage the firewall.

8. Choose the template stack for managing the firewall's configuration.

9. Select the device group to associate with the firewall.

10. Click **OK** to add the firewall as a managed device.

11. Click **Commit**, then select **Commit to Panorama** to complete the process.

12. Verify that the newly added firewall is connected.