Fix #367

4chan_x.user.js

@@ -1959,6 +1959,7 @@
         $.replace(home.firstElementChild, a);
       }
       if (!$.get('firstrun')) {
+        if (!Favicon.el) Favicon.init();
         $.set('firstrun', true);
         return Options.dialog();
       }
@@ -3320,6 +3321,7 @@
   Favicon = {
     init: function() {
       var href;
+      if (this.el) return;
       this.el = $('link[rel="shortcut icon"]', d.head);
       this.el.type = 'image/x-icon';
       href = this.el.href;

script.coffee

@@ -1644,6 +1644,8 @@ Options =
       $.on a, 'click', Options.dialog
       $.replace home.firstElementChild, a
     unless $.get 'firstrun'
+      # Prevent race conditions
+      Favicon.init() unless Favicon.el
       $.set 'firstrun', true
       Options.dialog()
 
@@ -2809,6 +2811,7 @@ Unread =
 
 Favicon =
   init: ->
+    return if @el # Prevent race condition with options first run
     @el = $ 'link[rel="shortcut icon"]', d.head
     @el.type = 'image/x-icon'
     {href} = @el