It works fine for me, with a current FF on Linux (Ubuntu), opening in a new tab. I have lots of extensions enabled.
But I do share your frustration: the modern web seems unusable, unless you have a collection of extensions that block ads, annoying consent forms and the likes. But once you have these extensions installed, you basically lose all support.
Sometimes stuff breaks, and it works in a new profile even with the same extensions installed... and then what? You're supposed to throw away your profile with bookmarks, CAs, years of history etc.?