Antonymph running on Firefox (Linux Mint)

I have heard of this Antonymph web experience from Furbiland Channel on CuddlyTube. I saw it being played on some wonky scam browsers where it would glitch spectacularly and not show the pop-ups properly. There are no videos here on Peertube showing the experience playing properly, so I decided to record it personally on my Linux Mint computer running Firefox. The experience itself was made for Chromium browsers, but I wanted to see how it would play on my computer. Playing normally on the experience's default setting, the music video would sometimes fail to load some images and videos properly but the pop-ups were able to play in-sync with the music (it ran better than the Arc and Comet AI browsers). I later played the video at a faster speed with the frame rate limited to 30 fps and it played worse (it unlocked the Nightcore achievement though). I later played it at a slower speed with the window animations limited to be on 4s and the experience was able to load everything correctly