Fix inline examples in Firefox.

    replaceExampleDivs: function() {

        Ext.Array.each(Ext.query('.inline-example'), function(inlineEg) {

            // Grab code from <pre> element and replace it with new empty <div>

            var code = inlineEg.innerText;

            var code = Ext.util.Format.stripTags(inlineEg.innerHTML);

            var div = document.createElement("div");

            inlineEg.parentNode.replaceChild(div, inlineEg);

            // Then render the example component inside the div