Firefox 18 does not render SVG as expected.

[paultripper]

<svg xmlns="http://www.w3.org/2000/svg" width="500" height="500" viewBox="12961311 -4459726 500 500" >
<rect x="12961311" y="-4459726" width="400" height="400" fill="blue" />

<g transform="translate(12961311,-4459726)" fill="green">
	<rect x="0" y="0" width="200" height="200"  fill="red" />
</g>
</svg>

This simple SVG document does not show well on Firefox version 18, but looks well on Firefox version 2, as well as Chrome and IE 10.
Is it a issue with Firefox 18?

Attachment 15357
Attachment 15359