I was watching screencast #97: Intro to CSS Animations and realised it was made before firefox 5 was released and decided to try and get it working. I discovered it was as simple as search and replacing “webkit” to “moz”.
So. -webkit-animation: move-city-top 15s infinite linear;
becomes
-moz-animation: move-city-top 15s infinite linear;
http://www.squrk.com/perma/animation/ for the example from screencast #97 but it works on firefox 5.
also if your interested I done another simple port of a matrix screen: http://www.squrk.com/perma/matrix/
EDIT: This was suppose to be an example not a question :)