New Security Warnings

Seeing these new security warnings - - should I be changing settings? Thanks for advice.

“Faster Cars, Younger Women, Older Whiskey and More Money” [Tom T. Hall’s secret for happiness.]

I’m not too savvy with computers, are you talking about the fractions showing up in place of letters? I noticed that I had them also in a post this week. What can I do to stop this?

You can’t catch fish on a dry line