I just got a pop up from ADOBE wanting me to upgrade. I hit the button, and the window that then popped up told me they wanted to scan my computer with the Mcafee anti-virus program before.
Since I use Kaspersky I figured there would be a conflict so I closed the window.
I also use Firefox.
You are so right that you DO NOT want to ever let McAfee have anything to do with your PC.
However, there usually is a place to uncheck the McAfee option. If there is not an opt-out option, I would certainly complain to Adobe. We have been begging Adobe to stop trying to trick people into taking McAfee when downloading an Adobe update. If they are now not even at least offering an opt-out, that is really over-the-top scamming.