Speedup Firefox with black magic. Seriously, WTF?

blockly_compressed.js

@@ -1286,9 +1286,8 @@ Blockly.updateToolbox=function(a){if(a=Blockly.parseToolboxTree_(a)){if(!Blockly
 };
 // Copyright 2012 Google Inc.  Apache License 2.0
 Blockly.utils={};Blockly.addClass_=function(a,b){var c=a.getAttribute("class")||"";-1==(" "+c+" ").indexOf(" "+b+" ")&&(c&&(c+=" "),a.setAttribute("class",c+b))};Blockly.removeClass_=function(a,b){var c=a.getAttribute("class");if(-1!=(" "+c+" ").indexOf(" "+b+" ")){for(var c=c.split(/\s+/),d=0;d<c.length;d++)c[d]&&c[d]!=b||(c.splice(d,1),d--);c.length?a.setAttribute("class",c.join(" ")):a.removeAttribute("class")}};
-Blockly.hasClass_=function(a,b){return-1!=(" "+a.getAttribute("class")+" ").indexOf(" "+b+" ")};
-Blockly.bindEvent_=function(a,b,c,d){var e=function(a){d.apply(c,arguments)};a.addEventListener(b,e,!1);var f=[[a,b,e]];if(b in Blockly.bindEvent_.TOUCH_MAP)for(var e=function(a){if(1==a.changedTouches.length){var b=a.changedTouches[0];a.clientX=b.clientX;a.clientY=b.clientY}d.apply(c,arguments);a.preventDefault()},g=0,h;h=Blockly.bindEvent_.TOUCH_MAP[b][g];g++)a.addEventListener(h,e,!1),f.push([a,h,e]);return f};Blockly.bindEvent_.TOUCH_MAP={};
-goog.events.BrowserFeature.TOUCH_ENABLED&&(Blockly.bindEvent_.TOUCH_MAP={mousedown:["touchstart"],mousemove:["touchmove"],mouseup:["touchend","touchcancel"]});Blockly.unbindEvent_=function(a){for(;a.length;){var b=a.pop(),c=b[2];b[0].removeEventListener(b[1],c,!1)}return c};
+Blockly.hasClass_=function(a,b){return-1!=(" "+a.getAttribute("class")+" ").indexOf(" "+b+" ")};Blockly.bindEvent_=function(a,b,c,d){var e=function(a){d.call(c,a)};a.addEventListener(b,e,!1);var f=[[a,b,e]];if(b in Blockly.bindEvent_.TOUCH_MAP)for(var e=function(a){if(1==a.changedTouches.length){var b=a.changedTouches[0];a.clientX=b.clientX;a.clientY=b.clientY}d.apply(c,arguments);a.preventDefault()},g=0,h;h=Blockly.bindEvent_.TOUCH_MAP[b][g];g++)a.addEventListener(h,e,!1),f.push([a,h,e]);return f};
+Blockly.bindEvent_.TOUCH_MAP={};goog.events.BrowserFeature.TOUCH_ENABLED&&(Blockly.bindEvent_.TOUCH_MAP={mousedown:["touchstart"],mousemove:["touchmove"],mouseup:["touchend","touchcancel"]});Blockly.unbindEvent_=function(a){for(;a.length;){var b=a.pop(),c=b[2];b[0].removeEventListener(b[1],c,!1)}return c};
 Blockly.fireUiEventNow=function(a,b){var c=Blockly.fireUiEvent.DB_[b];if(c){var d=c.indexOf(a);-1!=d&&c.splice(d,1)}if(document.createEvent)c=document.createEvent("UIEvents"),c.initEvent(b,!0,!0),a.dispatchEvent(c);else if(document.createEventObject)c=document.createEventObject(),a.fireEvent("on"+b,c);else throw"FireEvent: No event creation mechanism.";};
 Blockly.fireUiEvent=function(a,b){var c=Blockly.fireUiEvent.DB_[b];if(c){if(-1!=c.indexOf(a))return;c.push(a)}else Blockly.fireUiEvent.DB_[b]=[a];setTimeout(function(){Blockly.fireUiEventNow(a,b)},0)};Blockly.fireUiEvent.DB_={};Blockly.noEvent=function(a){a.preventDefault();a.stopPropagation()};
 Blockly.getRelativeXY_=function(a){var b={x:0,y:0},c=a.getAttribute("x");c&&(b.x=parseInt(c,10));if(c=a.getAttribute("y"))b.y=parseInt(c,10);if(a=(a=a.getAttribute("transform"))&&a.match(/translate\(\s*([-\d.]+)([ ,]\s*([-\d.]+)\s*\))?/))b.x+=parseInt(a[1],10),a[3]&&(b.y+=parseInt(a[3],10));return b};Blockly.getSvgXY_=function(a){var b=0,c=0;do{var d=Blockly.getRelativeXY_(a),b=b+d.x,c=c+d.y;a=a.parentNode}while(a&&a!=Blockly.svg);return{x:b,y:c}};

core/utils.js

@@ -95,7 +95,7 @@ Blockly.hasClass_ = function(element, className) {
  */
 Blockly.bindEvent_ = function(node, name, thisObject, func) {
   var wrapFunc = function(e) {
-    func.apply(thisObject, arguments);
+    func.call(thisObject, e);
   };
   node.addEventListener(name, wrapFunc, false);
   var bindData = [[node, name, wrapFunc]];