I appreciate the advice, but being a person who can explode a lightbulb in a blue pffft! by flipping a wall switch some distance away, I don't do much poking around in computers. (My brother, being a much larger person, blew up larger appliances like TV sets, just using the remote. Something to do with skin chemistry, we were told

.) I leave fixing problems to the family teenagers, some of whom will be visiting next week for my birthday party. They don't let me buy my own gadgets, I receive them as gifts and then someone else sets them up for me. They give me Macbooks because I can then take them to the Apple store for "corrections" when family members aren't around. Someone did give me a Chromebook once, but I drowned it a week later knocking an opened water bottle over onto the keyboard, so it never had a chance to really show off.
I'll make a note of "browser settings" and "embed" for one of my young computer gurus to tackle, as he or she will, with enthusiasm. Thanks for the suggestions!