Some that are BLIND just do not look!
It seems that the pop up from Mc Afee is a "notification"!
A helpful bit of advice is this -  Block notifications on whatever browser you are using.

Seems to have worked!
I am sitting here typing this and have not seen hide nor hair of McAfee telling me my subscription has expired.for McAfee Antivirus

Wondered how 'they' knew my subscription had expired -  seeing as I had never subscribed to McAfee, !!.