change your default browser
I was trying to avoid that if I could. No good solution it seems. I’ve been having trouble with some p5.js code not running in Safari, while it will run in Chrome. The only other option would be to use a different p5.js editor in lieu of Processing (assuming that I could direct its output to Chrome). I think Dan Shiffman has his set up that way (at least it looks like it in his videos).