Echo JS 0.11.0

Interesting, my results :

CanvasMark Score: 14351 (Chrome 25 on Mac)
CanvasMark Score: 8327 (Firefox 19 on Mac)

and

CanvasMark Score: 10762 (Chrome 25 on Mac) after closing a bunch of tabs

My results :

CanvasMark Score: 10329 (Chrome 25 on Mac)
CanvasMark Score: 11677 (Firefox 19 on Mac)