profile icon in textboxes in safari

When I click into a textbox in Safari there is a profile type icon on the right with a dropdown arrow.

It does nothing.

When I type my name it gives me an autofill option, but clicking the icon does nothing.

I spoke with Apple. The rep said it brought up autofill options for him, but he was on 26 and I was on 15.

I'm now on 26 and it still does nothing.

I spoke with another Apple rep.

We tried all different options and nothing did anything.

I created a profile and it still did nothing.

Does anyone know what it should be doing, and how to get it to do that?