browser crash on webtexture.Play() using nyartoolkit

Hi, i'm using nyartoolkit at a UnityWebPlayer Project.

problem is that in some browser when you allow to use the webcam the browser crashes. i'm see at the .log of unitywebplayer that the browser crahs after do Play of the WebCamTexture. At this computer crash at any browser, chrome, IE... At other computers it's OK.

Someone has see this problem and know how to solveit?