Also, with the initial installation. This dialog came up:

There is no application set to open the URL com.sweetpproductions.wifispoof3.update://installed.

Still no luck. So I initially installed the Helper and it didnt work. So deinstalled both and restarted the computer.

Installed WifiSpoof v3.0 and the Helper. The buttons are still greyed out and the WifiSpoof app is still inviting me to install the helper?

hmm the link seem to send me to a 404?

It seems the download installer only includes the Wifispoof app. I could look inside the package content but would not know what the helper would be named?

Just had a look, there is only Wifispoof in the application folder...

Thanks for the quick reply. It seems I cant change the mac address. The buttons are grey out and it still invites me to install the helper when I launch.  The operating system is Sierra and tried it many times on both computers:/

I can't seem to install the helper for Wifispoof. After entering the system password...nothing happens. Tried on 2 computers with no luck:/