Firefox on Android seems to just be a static image, I can't see any text.

Probably the result of canvas fingerprinting protection configured in your `about:config`? With a default profile it seems to work fine on Firefox for Android.

I haven't changed any of that on here.

Looks like I consistently get just the static image when I open in a new tab then switch to it, but then if I refresh the page without switching tabs it'll show the animation.

Wfm