Wow! You are a peach for helping me.
The 1st solution didn't work. The second one did.
But I also tried one other variation, and that was loading the browsers
in a different order. Instead of trying to load Safari first, I loaded
Firefox, then Chrome, then Safari.
I don't know if that made any difference.
But problem solved!
I'll post to the other online forum where I saw this problem unsolved.
Many thanks.
Warmly,
Karen