They, FB, surreptitiously scan your computer for cookies, search terms and visitation logs while you are on FB.
They sell this info to advertisers.
The advertisers then target you with ads for stuff they think you want.
Quit FB if you do not want them to do this.
It’s in their user agreement.................
What Facebook Really Does With Your Data https://www.youtube.com/watch?v=83pwPOtrITk
Yes, I understand all of that. My point is that It is useless for them in my case.
I was just making an observation, not complaining. :)