may relate to bug 436276 this is the example given by w3: http://www.w3.org/TR/SVG11/animate.html#AnimateElement in the link from the mozilla SVG status: http://www.mozilla.org/projects/svg/status.html when one visits the link under "animate"

This is just a specific case of bug 474049. Since there are dozens of CSS properties it doesn't make sense at this stage to have a bug for each one. Once we've done bug 474049 feel free to undup this if it's left out.