diff --git a/canvasblocker.xpi b/CanvasBlocker@kkapsner.de-0.3.0-Development.xpi
similarity index 72%
rename from canvasblocker.xpi
rename to CanvasBlocker@kkapsner.de-0.3.0-Development.xpi
index 05c598d..ea26ed4 100644
Binary files a/canvasblocker.xpi and b/CanvasBlocker@kkapsner.de-0.3.0-Development.xpi differ
diff --git a/lib/check.js b/lib/check.js
index 06181e9..d967af5 100644
--- a/lib/check.js
+++ b/lib/check.js
@@ -49,6 +49,7 @@
 				if (url.href === "about:blank"){
 					break;
 				}
+				return "allow";
 			case "chrome:":
 				return "allow";
 		}
diff --git a/lib/intercept.js b/lib/intercept.js
index 1d1621d..800abf3 100644
--- a/lib/intercept.js
+++ b/lib/intercept.js
@@ -1,3 +1,4 @@
+/* jslint moz: true */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
@@ -47,5 +48,5 @@
 				}
 			);
 		});
-	}
+	};
 }());
\ No newline at end of file
diff --git a/lib/lists.js b/lib/lists.js
index b8167b6..20464ce 100644
--- a/lib/lists.js
+++ b/lib/lists.js
@@ -1,3 +1,4 @@
+/* jslint moz: true */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
@@ -70,17 +71,18 @@ Object.keys(lists).forEach(function(type){
 });
 
 function updateStackList(){
+	var list;
 	try {
 		var data = JSON.parse(prefs.stackList);
 		if (!Array.isArray(data)){
 			data = [data];
 		}
-		var list = data.filter(function(entry){
+		list = data.filter(function(entry){
 			return typeof entry === "object" && typeof entry.url === "string";
 		});
 	}
 	catch(e){
-		var list = [];
+		list = [];
 	}
 	list.match = function(stack){
 		return this.some(function(stackRule){
diff --git a/lib/main.js b/lib/main.js
index 255b765..4c2b352 100644
--- a/lib/main.js
+++ b/lib/main.js
@@ -27,39 +27,6 @@
 		}
 	};
 	
-	// const observers = require("sdk/system/events");
-	// const {intercept} = require("./intercept");
-	// const {errorToCallingStack} = require("./callingStack.js");
-	// const {ask} = require("./askForPermission");
-	// function interceptWrapper(ev){
-		// intercept(ev, {
-			// check,
-			// ask: function(data){
-				// return ask(
-					// data,
-					// {
-						// _,
-						// prefs: function(name){
-							// return prefs[ev.data];
-						// }
-					// }
-				// );
-			// },
-			// notify: function(data, window){
-				// notify(
-					// data,
-					// {
-						// lists, _, notificationPref, window
-					// }
-				// );
-			// }
-		// });
-	// }
-	// observers.on("content-document-global-created", interceptWrapper);
-	// unload(function(){
-		// observers.off("content-document-global-created", interceptWrapper);
-	// });
-	
 	const {Cc, Ci} = require("chrome");
 	var globalMM = Cc["@mozilla.org/globalmessagemanager;1"].getService(Ci.nsIMessageListenerManager);
 	var frameURL = require("sdk/self").data.url("frame.js?" + Math.random());
diff --git a/lib/modifiedAPI.js b/lib/modifiedAPI.js
index 3e424bd..455661a 100644
--- a/lib/modifiedAPI.js
+++ b/lib/modifiedAPI.js
@@ -27,7 +27,7 @@
 				source
 			);
 		}
-		var data = imageData.data;
+		data = imageData.data;
 		
 		for (var i = 0, l = data.length; i < l; i += 1){
 			var value = source[i];
diff --git a/lib/notifications.js b/lib/notifications.js
index c2386e0..3f089e1 100644
--- a/lib/notifications.js
+++ b/lib/notifications.js
@@ -1,3 +1,4 @@
+/* jslint moz: true */
 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
@@ -13,7 +14,7 @@ exports.notify = function({url, errorStack}, {lists, notificationPref, _, browse
 	
 	var contentURL = new URL(url);
 	if (notificationPref.doShow() && !lists.get("ignore").match(contentURL)){
-		var url = contentURL.href;
+		url = contentURL.href;
 		var domain = contentURL.hostname;
 		var message = _("fakedReadout").replace(/\{url\}/g, domain || url);