the weirder thing is I can get things working not in Firefox, but in the Gnome browser Epiphany

oh interesting, hard clearing the cache in FF made it work

one day I'll understand all this...😂

Yeah, hard clear browser caches is a good thing to keep in mind often.

Also, be sure to close all fig connected browser windows from time to time if you get issues too - the connections may get messed up.

Then also, occasionally if things seem broken, be sure to clear any local cache/compilation files from figwheel via some sort of “clean” command depending on what build tooling you are using.