HTML 5 performance in Firefox?

Question

I tried this sample here:

http://9elements.com/io/projects/html5/canvas/

After a few minutes, Firefox slows down so much that I can't even pop up on any menu. When I close the tab, Firefox returns to normal again.

So, is HTML 5 really a good choice?

Answer 1

it was very good for me - both firefox and chrome, saying that - chrome was vague, although you would expect it with the weight of FF on your system.

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Answer 2

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Answer 3

? Firefox 3.6.3 PowerBook G4/1.67GHz, 2G RAM ( , , ), - . , YouTube.