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McAfee Firewall will not turn on


I installed McAfee LiveSafe (212) yesterday and have issues enabling the McAfee firewall on my mac book pro running macOS Mojave 10.14 (18A391)

When I attempt to turn the FW on, I get a pop up window asking me permission to "load our software from the Security & Privacy pane".

I click "OK", simultaneously the "System Preferences" "Security & Privacy" window pops up.

Then nothing happens, the McAfee FW stays off.

I have already tried uninstalling and installing McAfee LiveSafe.

I also disabled the mac firewall, in case it was some sort of permissions problem by which McAfee wasn't allowed to turn the macOS FW off.

I rebooted the laptop.

If anyone has any pointers, please advise.

Thanks in advance!

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