In order to install the Pay-Per-Minute (Plugin)
After you install the Pay-Per-Minute (Plugin), you need to drag the program to the folder called applications, as the image attached below:
Once you perform this action, the program will install and will appear on your desktop,
You probably will receive this error message once you open the App:
In macOS Catalina (10.15) and macOS Mojave (10.14), when an app fails to install because it hasn’t been authorized or is from an unidentified developer, it will appear in System Preferences > Security & Privacy, under the General tab.
Once you are in the Security & privacy, click on the lock, to unlock the changes and be able to make them:
After that, please click on Allow:
And you will receive this message:
After you click Open, the plugin should start with downloading any update, and you will see the plugin open!