diff --git a/lib/main.js b/lib/main.js
index 39a0fba..fc3a46b 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -5,131 +5,141 @@
 (function(){
 	"use strict";
 	
-	console.log("start main script");
-	browser.runtime.onMessage.addListener(function(data){
-		console.log("got data", data);
-	});
-	browser.runtime.onConnect.addListener(function(port){
-		console.log("got port", port);
-		port.postMessage({tabId: port.sender.tab.id});
-		port.onMessage.addListener(function(data){
-			browser.storage.local.get("showNotifications").then(function(data){
-				// TODO: handle ignore list
-				if (!data.hasOwnProperty("showNotifications") || data.showNotifications){
-					browser.pageAction.show(port.sender.tab.id);
+	function log(...args){
+		args.unshift("main script:");
+		args.unshift(new Date());
+		console.log.apply(console, args);
+	}
+	
+	log("start");
+	log("loading storage");
+	browser.storage.local.get().then(function(data){
+		Object.keys(data).forEach(function(key){
+			settings[key] = data[key];
+		});
+		return settings;
+	}).then(function(settings){
+		log("everything loaded");
+		const lists = require("./lists");
+		lists.updateAll();
+		
+		log("build persistent storage");
+		var persistentRnd = Object.create(null);
+		try {
+			let storedData = JSON.parse(settings.persistentRndStorage);
+			for (var domain in storedData){
+				var value = storedData[domain];
+				if (
+					Array.isArray(value) &&
+					value.length === 128 &&
+					value.every(function(value){return typeof value === "number" && value >= 0 && value < 256;})
+				){
+					persistentRnd[domain] = value;
 				}
-			})
-			console.log("got data", data, "from port", port);
+			}
+		}
+		catch(e){}
+		
+		function updateContentScripts(){
+			log("update content scripts");
+			log("build settings blob");
+			var settingsBlob = new Blob(
+				[
+					"var settings = " + JSON.stringify(settings) + ";",
+					"var persistentRnd = " + JSON.stringify(persistentRnd) + ";"
+				],
+				{
+					type: "text/javascript"
+				}
+			);
+			log("TODO: register content scripts -> have to wait for the API to be released");
+		}
+		updateContentScripts();
+		
+		log("register non port message listener");
+		browser.runtime.onMessage.addListener(function(data){
+			log("got data without port", data);
+			if (data["canvasBlocker-new-domain-rnd"]){
+				log("got new domain rnd");
+				data["canvasBlocker-set-domain-rnd"] = data["canvasBlocker-new-domain-rnd"];
+				persistentRnd[data["canvasBlocker-new-domain-rnd"].domain] = data["canvasBlocker-new-domain-rnd"].rnd;
+				browser.storage.local.get("storePersistentRnd").then(function(prefs){
+					if (prefs.storePersistentRnd){
+						browser.storage.local.set({persistentRndStorage: JSON.stringify(persistentRnd)});
+					}
+				});
+				updateContentScripts();
+			}
+			log("pass the message to the tabs");
+			browser.tabs.query({}).then(function(tabs){
+				tabs.forEach(function(tab){
+					browser.tabs.sendMessage(tab.id, data);
+				});
+			});
+		});
+		
+		log("register port listener");
+		browser.runtime.onConnect.addListener(function(port){
+			log("got port", port);
+			log("send back the tab id", port.sender.tab.id);
+			port.postMessage({tabId: port.sender.tab.id});
+			var url = new URL(port.sender.url);
+			port.onMessage.addListener(function(data){
+				browser.storage.local.get("showNotifications").then(function(data){
+					if (
+						(
+							!data.hasOwnProperty("showNotifications") ||
+							data.showNotifications
+						) &&
+						!lists.get("ignore").match(url)
+					){
+						browser.pageAction.show(port.sender.tab.id);
+					}
+				})
+				log("got data", data, "from port", port);
+			});
+		});
+		
+		log("register storage change event listener");
+		browser.storage.onChanged.addListener(function(change, area){
+			if (area === "local"){
+				log("settings changed", change);
+				log("update settings object");
+				Object.keys(change).forEach(function(key){
+					settings[key] = change[key].newValue;
+				});
+				updateContentScripts();
+				
+				if (change.hasOwnProperty("showNotifications") && !change.showNotifications.newValue){
+					log("notifications were disabled -> hide all page actions");
+					browser.tabs.query({}).then(function(tabs){
+						tabs.forEach(function(tab){
+							browser.pageAction.hide(tab.id);
+						});
+					});
+				}
+				if (change.hasOwnProperty("storePersistentRnd")){
+					browser.storage.local.set({
+						persistentRndStorage: change.storePersistentRnd.newValue? JSON.stringify(persistentRnd): ""
+					});
+				}
+			}
+		});
+		
+		// hide page action when a tab is refreshed
+		browser.tabs.onUpdated.addListener(function(tabId, data){
+			if (data.status === "loading"){
+				browser.pageAction.hide(tabId);
+			}
 		});
 	});
 	
-	// hide all page actions when showNotifications is set to false
-	browser.storage.onChanged.addListener(function(change, area){
-		if (area === "local" && change.hasOwnProperty("showNotifications") && !change.showNotifications.newValue){
-			browser.tabs.query({}).then(function(tabs){
-				tabs.forEach(function(tab){
-					browser.pageAction.hide(tab.id);
-				});
-			});
-		}
-	});
-	
-	// hide page action when a tab is refreshed
-	browser.tabs.onUpdated.addListener(function(tabId, data){
-		if (data.status === "loading"){
-			browser.pageAction.hide(tabId);
-		}
-	});
+	log("TODO: register unload events - do not know how");
+	// old code
+	// const {when: unload} = require("sdk/system/unload");
+	// unload(function(){
+		// processes.port.emit("canvasBlocker-unload");
+	// });
 
-	console.log("end main script");
-	return null;
-	require("./stylePreferencePane");
-	
-	
-	const {when: unload} = require("sdk/system/unload");
-	const {notify} = require("./notifications");
-	
-	const _ = require("sdk/l10n").get;
-	const lists = require("./lists");
-	const preferences = require("sdk/simple-prefs");
-	const prefs = preferences.prefs;
-	
-	require("./webExtension");
-	
-	const notificationPref =  {
-		doShow: function(){
-			return prefs.showNotifications;
-		},
-		setShow: function(value){
-			prefs.showNotifications = value;
-			prefService.set("extensions.CanvasBlocker@kkapsner.de.showNotifications", prefs.showNotifications);
-		},
-		displayTime: function(){
-			return prefs.notificationDisplayTime;
-		}
-	};
-	
-	const {processes, frames, remoteRequire} = require("sdk/remote/parent");
-	// remoteRequire("./frame.js", module); // currently not working due to a regression in the SDK
-	var framePath = require("sdk/self").data.url("").replace(/data\/$/, "") + "lib/frame.js";
-	remoteRequire(framePath);
-	
-	frames.port.on("canvasBlocker-notify", function(frame, data){
-		notify(data, {lists, _, notificationPref, browser: frame.frameElement});
-	});
-	unload(function(){
-		processes.port.emit("canvasBlocker-unload");
-	});
-	
-	// persistent rng
-	var persistentRnd = Object.create(null);
-	try {
-		let storedData = JSON.parse(prefs.persistentRndStorage);
-		for (var domain in storedData){
-			var value = storedData[domain];
-			if (
-				Array.isArray(value) &&
-				value.length === 128 &&
-				value.every(function(value){return typeof value === "number" && value >= 0 && value < 256;})
-			){
-				persistentRnd[domain] = value;
-			}
-		}
-	}
-	catch(e){}
-	
-	processes.port.on("canvasBlocker-new-domain-rnd", function(process, data){
-		processes.port.emit("canvasBlocker-set-domain-rnd", data);
-		persistentRnd[data.domain] = data.rnd;
-		if (prefs.storePersistentRnd){
-			prefs.persistentRndStorage = JSON.stringify(persistentRnd);
-		}
-	});
-	processes.forEvery(function(process){
-		if (process.isRemote){
-			for (var domain in persistentRnd){
-				process.port.emit("canvasBlocker-set-domain-rnd", {domain, rnd: persistentRnd[domain]});
-			}
-		}
-	});
-	preferences.on("storePersistentRnd", function(){
-		if (prefs.storePersistentRnd){
-			prefs.persistentRndStorage = JSON.stringify(persistentRnd);
-		}
-		else {
-			prefs.persistentRndStorage = "";
-		}
-	});
-	preferences.on("clearPersistentRnd", function(){
-		persistentRnd = Object.create(null);
-		prefs.persistentRndStorage = "";
-		processes.port.emit("canvasBlocker-clear-domain-rnd");
-	});
-	
-	// show release notes
-	var data = require("sdk/self").data;
-	preferences.on("showReleaseNotes", function(){
-		var url = data.url("releaseNotes.txt").replace("/data/", "/");
-		require("sdk/tabs").open(url);
-	});
+	log("end");
 }());
\ No newline at end of file
diff --git a/lib/require.js b/lib/require.js
index cf33e87..9646cb3 100644
--- a/lib/require.js
+++ b/lib/require.js
@@ -25,7 +25,7 @@ function require(module){
 	}
 	else if (module === "sdk/l10n"){
 		return {
-			get: function(key){console.log(key);
+			get: function(key){
 				return browser.i18n.getMessage(key);
 			}
 		}
diff --git a/manifest.json b/manifest.json
index ce6488d..fc2bdf1 100644
--- a/manifest.json
+++ b/manifest.json
@@ -7,7 +7,12 @@
 	"homepage": "https://github.com/kkapsner/CanvasBlocker/",
 	"version": "0.4.0-Development",
 	"background": {
-		"scripts": ["lib/main.js"]
+		"scripts": [
+			"lib/defaultSettings.js",
+			"lib/require.js",
+			"lib/lists.js",
+			"lib/main.js"
+		]
 	},
 	"content_scripts": [{
 		"matches": ["<all_urls>"],
diff --git a/options/options.js b/options/options.js
index a2d8b72..b6d90a2 100644
--- a/options/options.js
+++ b/options/options.js
@@ -56,8 +56,8 @@
 			window.open("../releaseNotes.txt", "_blank");
 		},
 		clearPersistentRnd: function(){
-			browser.runtime.sendMessage({"canvasBlocker-clear-domain-rnd": true});
 			browser.storage.local.set({persistentRndStorage: ""});
+			browser.runtime.sendMessage({"canvasBlocker-clear-domain-rnd": true});
 		}
 	};
 	Array.from(document.querySelectorAll("button.setting")).forEach(function(button){