Originally Posted By: artie505
You've got the latest ESR release, but you're a dozen "real" Firefox versions behind. (Mozilla Firefox Web Browser — Mozilla Firefox Release Notes — Mozilla)

Two different animals.

I know. I just got comfortable with the ESR version when that was the longer-lasting version of Firefox and one that I could continue to use when everything else was out-of-date and/or not supported.

I'm going to grab Firefox 57 and see what happens. (I'll get back to you soon.)