I didn’t try all puzzles but at least for Batman and APU the canvas/WebGL frame is “stuck” or do not show up correctly, with older IDE everything was fine.
Some others like Indiana, Thor works fine.
I checked logs and didn’t see any error:
Log on pushmessage server as 277758 80fa5f92.codingame.js:38:3822
Variation 3 80fa5f92.codingame.js:41:32111
resize 80fa5f92.codingame.js:46:17119
"Pixi.js 3.0.9 - Canvas - http://www.pixijs.com/" 80fa5f92.codingame.js line 42 > Function:6:17008
Firefox 43.0 (almost all addon disable)
Linux
I don’t have any flash/silverlight/… installed (<- maybe useless info, but who knows)
Batman (almost stuck):
http://s22.postimg.org/82mtc4url/Screenshot_3.png
APU (stuck) :
http://s27.postimg.org/qbgbdughf/Screenshot_APU.png
EDIT:
On qupzilla 1.8.9 APU works but Batman (both) don’t.