The app is using CSS transforms and it looks like it should work on all browsers since the styles are there for all browsers. I'm guessing the app isn't entirely complete for all browsers, which is why it is refusing to load on Firefox but you can look at the source code and search for the relevant CSS for the other browsers that you want to support, if they need prefixing that is.

  <div id="scene3D"
       class="scene"
       style="-webkit-transform:rotateX(0deg) rotateY(0deg);
              -moz-transform:rotateX(0deg) rotateY(0deg);
              -ms-transform:rotateX(0deg) rotateY(0deg);
               transform:rotateX(0deg) rotateY(0deg); ">

Edit: The dev just posted an example https://news.ycombinator.com/item?id=6251831