diff --git a/platform/firefox/frameScript.js b/platform/firefox/frameScript.js
index 37caefb..d1ae54a 100644
--- a/platform/firefox/frameScript.js
+++ b/platform/firefox/frameScript.js
@@ -1,9 +1,36 @@
+/*******************************************************************************
+
+    µBlock - a browser extension to block requests.
+    Copyright (C) 2014 The µBlock authors
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see {http://www.gnu.org/licenses/}.
+
+    Home: https://github.com/gorhill/uBlock
+*/
+
 /* globals Services, sendAsyncMessage, addMessageListener, removeMessageListener */
 
+'use strict';
+
+/******************************************************************************/
+
 (function(frameScriptContext) {
 
 'use strict';
 
+/******************************************************************************/
+
 let appName;
 let listeners = {};
 
@@ -13,6 +40,8 @@ try { throw new Error; } catch (ex) {
 
 Components.utils['import']('chrome://' + appName + '/content/frameModule.js', {});
 
+/******************************************************************************/
+
 frameScriptContext[appName + '_addMessageListener'] = function(id, fn) {
     frameScriptContext[appName + '_removeMessageListener'](id);
     listeners[id] = function(msg) {
@@ -29,10 +58,16 @@ frameScriptContext[appName + '_removeMessageListener'] = function(id) {
     delete listeners[id];
 };
 
+/******************************************************************************/
+
 addMessageListener(appName + ':broadcast', function(msg) {
     for (let id in listeners) {
         listeners[id](msg);
     }
 });
 
-})(this);
\ No newline at end of file
+/******************************************************************************/
+
+})(this);
+
+/******************************************************************************/