Error logging used to be broken in Firefox at least until last year. I'm not working in frontend at moment and I never got around to submitting a bug (it always

Error logging used to be broken in Firefox at least until last year. I'm not working in frontend at moment and I never got around to submitting a bug (it always happened while at work) but my opinion was that there was a bug somewhere in there where they used a Chromium only API. And yes, I too have wondered if they only test in Chrome.