If you know things about Google web fonts and emoji and have nothing better to do… recently the Noto Emoji font has stopped working for me on https://ooh.directory, with Safari and Firefox either not rendering particular emoji, or not using the font for some. Works fine in Chrome!
I explain it in more detail here https://stackoverflow.com/questions/77422583/googles-noto-emoji-font-not-being-used-for-some-emoji-in-some-browsers with a test page of all emoji at https://archive.gyford.com/temp/emoji.html
