Yeesh. Speaking of yelling at clouds, you continuing to claim something doesn't make it so. The contradiction you can't seem to see was lamenting the lack of such a crucial part of the story (no letter) to essentially blowing it off (opinionated tldr at best) when it was finally found. Clear enough?
I appreciate the use of a reading comprehension jab when you immediately fail it yourself. Third time's the charm? I mean, I tried to bring levity and the mere possiibility Lemmy not updating made things worse but no, you have to be right, get the last word on each post. Well have at it, champ.
It's still there, it's just off by default since people rarely use it these days.
Go to Customize Firefox controls, buttons and toolbars. Pick the Home button or whatever else you want on the toolbar, and just drag it up there. Some items might be in the overflow menu on the right.