Anyone who knows me knows that I am a rather solid Mozilla/Firefox fan. I have Chromium installed for verification that things work with my web development, but that's all I use it for. I much prefer Firefox. It was only when I read the comments that had been made here that I remembered that Firefox had removed <blink> support and checked it in Chrome to see what had been intended.

I did not actually check at that point that it had used <blink> but assumed. This was an error.

As it happens, I run Nightly and for whatever reason the animation is not functioning there. I presume it's faulty browser detection on their part or the lack of a prefix-free version or some such thing.