Ooh that is looking good. It's a shame it's not on Firefox Add-ons yet - hopefully I'll remember to check back later.

Thanks. Honestly, just don't use firefox. There are bugs in the extension that only happen on FF and I can't figure out why because I can't figure out the devtools enough to even set a debugger statement. Really sad what that browser has turned into.

Ha, that's not an option for me, I'm all in on Firefox.

FWIW, just adding

    debugger;

to your code should work on Firefox just like it does on other browsers.