Paste in Firefox doesn't seems to work

Hi !

I was trying your project and it seems that the paste function is not working in firefox. I have no problem on Chrome though. Here is the code :

var opts = {
    dragClass: "drag",
    accept: false,

    readAsDefault: 'BinaryString',
    on: {
         loadstart: function(e, file) {
        // Native ProgressEvent
    console.log("begining up");
    },
    loadend: function(e, file) {
        // Native ProgressEvent
    loadImage(
              file,
              function (img) {
                  ctx.drawImage(img, 0, 0);
              },
              {maxWidth: 600} // Options
          );
    }
};

FileReaderJS.setupClipboard(document.body, opts);

This should show me begining up in the console (as Chrome do), but in Firefox with firebug, nothing happends.

bgrins / filereader.js

Paste in Firefox doesn't seems to work #16