Can't access the Mozilla support forums

I’ve run into a massive headache and I’m honestly at a loss for what to do... A few times now, whenever I try to quote someone and reply, this random smiley face just pops up above my quoted text, and I didn't put it there. It happened again today, and I kept clicking on the little icon thinking I could get rid of it, but then everything just... broke. Suddenly, all my functions are gone: I can't see the quote markers, the user avatars have vanished, the online status indicators aren't showing up, and those little toolbars in both "quick reply" and "advanced options" are just dead... I can't even start a new thread, the little icon for opening topics from the last post is missing, half my smileys are gone, and even the site logo in the top left corner isn't loading correctly! Basically, I'm completely paralyzed while using Mozilla...
Does anyone have any clue what's going on, what I might have tripped over, or how I can get things back to the way they were? 🤷

(I'm stuck using Internet Explorer right now, but the connection is painfully slow here so I much prefer sticking to Mozilla...)

Finally got that issue sorted out! 👍