60'ish on my Nexus 5, is this specific to the implementation or a sign of improvement of webgl, or browser, or all!

16fps on my tablet. Still impressive seeing as many WebGL demos I've tried on it have either not worked or even crashed the browser. Samsung Galaxy Tab 2. What make and model is your phone?

60fps also in my phone, a OnePlus One with Firefox and Android 5.0

I tested it on my galaxy s4.

I also tried it on an older HTC Evo and it simply crashed.

Right? But I wonder what the hell my desktop Firefox is doing. I get 50 on my Note 3 phone with chrome beta, 40-50 with mobile firefox. On my desktop, Chromium gets a nice 60 and Firefox... 7-12.

I get 40+ with FF on an ancient nvidia 9600gt on Linux. Only changes in config I have: layers.acceleration.force-enabled=true layers.offmainthreadcomposition.enabled=true

The offmainthread setting bumped it up to 20. Still sad. (I have a 7950.) Fiddled around some more and setting gfx.xrender.enabled to false got it to 40.

25fps on Lumia 920. Quite good. But I wonder why I'm seeing ~30fps on my laptop... It's nvidia gt540m. I think there is a framerate limit to 30.

Same. 4 jellyfish were fine on my HTC One M8.

50ish on my Nexus 4, still very impressive.

30+ fps with 10 creatures on iPhone 5S.

How many did you spawn?