App does not load in Firefox 78

App not loading in Firefox. Loading spinner spins forever.

Browser: Firefox (78.0.1)
OS: W10 Pro
URL: Account Setup | SketchUp

Error: Uncaught ReferenceError: MktoForms2 is not defined
Account Setup | SketchUp
account-setup:2840:1

Check if it is 32 bit and not 64 bit. All 32 bit browsers are broken at the moment.