Manifest:
codice:
{
	"name": "First Extension",
	"version": "1.0",
	"description": "The first extensione tha I made",
	"permissions":["contextMenus"],
	"background_page": "background_page.html",
	"browser_action":{ 
						"name": "My First Extension!",
						"default_icon": "Chrome_icon32bn.png",
						/*"default_popup": "popup.html",*/
						"default_title": "My First Extension!"
	},
	"icons": {
    			"16": "Chrome_icon19color.png",
    			"48": "Chrome_icon32color.png",
    			"128": "Chrome_icon.png"
  	}
}
HTML (background page):
codice:
<!doctype html>
<html>
  <head>
    <title>Background Page</title>
    <script src="script.js"></script>
  </head>
  <body>
  </body>
</html>
Javascript (script.js):
codice:
var color_or_bn = "color";
var badge = "";

/////////// BROWSER ACTION /////////////
if( window.chrome ){
	chrome.browserAction.setBadgeText({text:badge});
	chrome.browserAction.setBadgeBackgroundColor({color:[150,150,150,25]});
	
	chrome.browserAction.onClicked.addListener(function(tab){
		badge = (badge!="")?"":String(tab.id);
		badgeBckColor = (badge!="")? Array(0,0,255,120) : Array(150,150,150,25);
		chrome.browserAction.setBadgeText({text:badge});
		chrome.browserAction.setBadgeBackgroundColor({color: badgeBckColor});
		chrome.browserAction.setIcon({path:"Chrome_icon32"+color_or_bn+".png"});
		color_or_bn = (color_or_bn == "color")? "bn" : "color";
	});
}


/////////// BROWSER CONTEXT MENU ////////////////
var arr_context = ["all", "page", "frame", "selection", "link", "editable", "image", "video", "audio"];
for(i=0; i<arr_context.length; i++){
	var title = arr_context[i];
	var menu1 = chrome.contextMenus.create({"type":"normal", "title":"Menu "+title, "contexts":arr_context, "onclick":callBack });
}

function callBack(info, tab){ console.log(info.menuItemId+"; URL: "+tab.url); }
Funziona tutto MA la non riesco ad ottenere i log nella console di javascript. Gli alert vanno ma la console mi da errore (solo nella pagina "background page", ovviamente)
Errore: Uncaught TypeError: Cannot call method 'setBadgeText' of undefined