http://fiddle.jshell.net/bTtKT/show/
If I print the above page in Chrome as A4 Landscape I get two pages as expected given the size of the canvas on the page, if I do the same in Firefox however (with print preview for example), it gives me only one page and therefor cuts the image/canvas in half. If I change the scale in Firefox however I do start to see the whole image (but then it's too small), so the image is there as a whole but Firefox seams to ignore that its bigger then one page for some reason.
How do I get Firefox to recognize that the image needs more then one page so I can print the whole thing in correct size?
(possible to edit the above page example here: http://jsfiddle.net/bTtKT/ )