diff --git a/4chan_x.user.js b/4chan_x.user.js
index 3389b149e..0d459d1a0 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -1531,15 +1531,16 @@
         $.bind(favicon, 'click', watcher.cb.toggle);
         $.before(input, favicon);
       }
-      watcher.refresh($.getValue('watched', {}));
-      return setInterval((function() {
-        if (watcher.lastUpdated < $.getValue('watcher.lastUpdated', 0)) {
-          return watcher.refresh($.getValue('watched', {}));
+      watcher.refresh();
+      return $.bind(window, 'storage', function(e) {
+        if (e.key === 'AEOS.4chan_x.watched') {
+          return watcher.refresh();
         }
-      }), 1000);
+      });
     },
-    refresh: function(watched) {
-      var board, dialog, div, favicon, id, link, props, watchedBoard, x, _i, _j, _len, _len2, _ref, _ref2, _ref3;
+    refresh: function() {
+      var board, dialog, div, favicon, id, link, props, watched, watchedBoard, x, _i, _j, _len, _len2, _ref, _ref2, _ref3, _results;
+      watched = $.getValue('watched', {});
       dialog = $('#watcher');
       _ref = $$('div:not(.move)', dialog);
       for (_i = 0, _len = _ref.length; _i < _len; _i++) {
@@ -1562,16 +1563,13 @@
       }
       watchedBoard = watched[g.BOARD] || {};
       _ref3 = $$('img.favicon');
+      _results = [];
       for (_j = 0, _len2 = _ref3.length; _j < _len2; _j++) {
         favicon = _ref3[_j];
         id = favicon.nextSibling.name;
-        if (id in watchedBoard) {
-          favicon.src = Favicon["default"];
-        } else {
-          favicon.src = Favicon.empty;
-        }
+        _results.push(id in watchedBoard ? favicon.src = Favicon["default"] : favicon.src = Favicon.empty);
       }
-      return watcher.lastUpdated = Date.now();
+      return _results;
     },
     cb: {
       toggle: function(e) {
@@ -1598,8 +1596,7 @@
       watched = $.getValue('watched', {});
       delete watched[board][id];
       $.setValue('watched', watched);
-      watcher.refresh(watched);
-      return $.setValue('watcher.lastUpdated', Date.now());
+      return watcher.refresh();
     },
     watch: function(thread, id) {
       var props, tc, watched, _name;
@@ -1612,8 +1609,7 @@
       watched[_name = g.BOARD] || (watched[_name] = {});
       watched[g.BOARD][id] = props;
       $.setValue('watched', watched);
-      watcher.refresh(watched);
-      return $.setValue('watcher.lastUpdated', Date.now());
+      return watcher.refresh();
     }
   };
   anonymize = {
diff --git a/script.coffee b/script.coffee
index acac878b2..d023084c9 100644
--- a/script.coffee
+++ b/script.coffee
@@ -1245,14 +1245,12 @@ watcher =
       $.before input, favicon
 
     #populate watcher, display watch buttons
-    watcher.refresh $.getValue 'watched', {}
+    watcher.refresh()
 
-    setInterval (->
-      if watcher.lastUpdated < $.getValue 'watcher.lastUpdated', 0
-        watcher.refresh $.getValue 'watched', {}
-    ), 1000
+    $.bind window, 'storage', (e) -> watcher.refresh() if e.key is 'AEOS.4chan_x.watched'
 
-  refresh: (watched) ->
+  refresh: ->
+    watched = $.getValue 'watched', {}
     dialog = $ '#watcher'
     for div in $$ 'div:not(.move)', dialog
       $.rm div
@@ -1274,7 +1272,6 @@ watcher =
         favicon.src = Favicon.default
       else
         favicon.src = Favicon.empty
-    watcher.lastUpdated = Date.now()
 
   cb:
     toggle: (e) ->
@@ -1296,9 +1293,7 @@ watcher =
     watched = $.getValue 'watched', {}
     delete watched[board][id]
     $.setValue 'watched', watched
-
-    watcher.refresh watched
-    $.setValue 'watcher.lastUpdated', Date.now()
+    watcher.refresh()
 
   watch: (thread, id) ->
     tc = $('span.filetitle', thread).textContent or $('blockquote', thread).textContent
@@ -1310,9 +1305,7 @@ watcher =
     watched[g.BOARD] or= {}
     watched[g.BOARD][id] = props
     $.setValue 'watched', watched
-
-    watcher.refresh watched
-    $.setValue 'watcher.lastUpdated', Date.now()
+    watcher.refresh()
 
 anonymize =
   init: ->