Chrome Version 79.0.3945.79 (Official Build) (64-bit)
You can do it on an app or see it on this page:
When I click the slider or move it in chrome it gets highlighted with a box. If I click drag and let go the highlighted box persists until i click elsewhere on the page. On firefox the same functionality does not highlight it at all no matter what you do, which is what I think is intended. Sidenote, the font for that same page looks different in chrome vs firefox, anyone know why that would be the case?