What changed in v32, that makes emscripten compiled JS code awfully slow?

Today I updated to v32.0.1 of Firefox. I'm currently working on the JS version of our face tracking library (Beyond Reality Face), that is emscripten compiled code. In v31 I got 36 FPS, while in v32 and v33 (beta) I got 10 to 12 FPS.
Does anyone know, if there was a change, that could course that slowdown?
Thanks in advance.

Edit: After a lot more of testing I got:
Emscripten + Google Closure Compiler (--compilation_level 'SIMPLE')
seems to generate something, that Firefox v32 handles differently than v31 (and thus slower). Must be something basic, like Array access or whatsoever.

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Here is a good place. I order one last week and it should arrive this Thursday.
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Two is not any facter than one.
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What changed in ios6 that won't allow me to send pictures in iMessage on my wifi?

This is crazy! My daughter got the new iPod touch 5th gen. It comes with ios6 on it. She is unable to send pictures or videos via iMessage. She has an ID, she is able to send and receive text in iMessage, so she is logged in. This is all of course over our wifi, since it is an iPod touch...
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See if the pevious discussions listed on the right side of this page under the heading More Like This help.

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This was a simple matter of uninstalling everything AMD then rebooting (with the Windows driver), then installing Catalyst 12.2. That went smoothly.
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Thanks for the info.
I understand what OpenCL is about, and to some extent at least the code should be portable, since there are standards that the implementations follow.
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-Noel

What Are The Condions that Make OpenCL Unavailable?

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Oops, I posted it in the wrong forum (in addition to misspelling "Conditions").
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What changed in v32, that makes emscripten compiled JS code awfully slow?

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