1. First open the Firefox browser on your Mac device.
2. In the search field, enter "Touch VPN" and hit Enter.
Alternatively, you may click on the link below and pick your favorite platform.
https://www.touchvpn.net/platform.html
3. The Touch VPN extension will display in the search results, with the option to "Add to Firefox." So, click the "Add to Firefox" button.
4. A popup will display, requesting permission to add. To proceed with the installation, click "Add".
5. Finally, a confirmation message will appear indicating that Touch VPN has been added. Finally, click "OK."
6. Lastly, you will see that the Touch VPN extension will be added to Firefox. You should see its symbol in the toolbar or extension menu.