Firebug lite for android console; borrowed from: http://eclipsesource.com/blogs/2012/08/14/debugging-javascript-on-android-and-ios/#ch3

firebuglite.js

javascript:(function(){if((/android/gi).test(navigator.appVersion)){console={"_log":[],"log":function(){var%20arr=[];for(var%20i=0;i<arguments.length;i++){arr.push(arguments[i]);}this._log.push(arr.join(",%20"));},"trace":function(){var%20stack;try{throw%20new%20Error();}catch(ex){stack=ex.stack;}console.log("console.trace()\n"+stack.split("\n").slice(2).join("%20%20\n"));},"dir":function(obj){console.log("Content%20of%20"+obj);for(var%20key%20in%20obj){var%20value=typeof%20obj[key]==="function"?"function":obj[key];console.log("%20-\""+key+"\"%20->%20\""+value+"\"");}},"show":function(){alert(this._log.join("\n"));this._log=[];}};window.onerror=function(msg,url,line){console.log("ERROR:%20\""+msg+"\"%20at%20\""+"\",%20line%20"+line);}window.addEventListener("touchstart",function(e){if(e.touches.length===3){console.show();}});}})();