Fixed: IO.readFromFile expects a listener object, not a callback

lib/adblockplus_compat.js

 /*
  * This Source Code is subject to the terms of the Mozilla Public License
  * version 2.0 (the "License"). You can obtain a copy of the License at
  * http://mozilla.org/MPL/2.0/.
  */
 
 //
 // Module framework stuff
 //
 
@@ skipping 190 matching lines @@
           }
           writer.write(blob);
         }, callback);
       }, callback);
     },
 
     copyFile: function(fromFile, toFile, callback)
     {
       // Simply combine read and write operations
       var data = [];
-      this.readFromFile(fromFile, false, function(line)
-      {
-        data.push(line);
+      this.readFromFile(fromFile, false, {
+        process: function(line)
+        {
+          if (line !== null)
+            data.push(line);
+        }
       }, function(e)
       {
         if (e)
           callback(e);
         else
           this.writeToFile(toFile, false, data, callback);
       }.bind(this));
     },
 
     renameFile: function(fromFile, newName, callback)
@@ skipping 304 matching lines @@
   status: -1,
   notificationCallbacks: {},
   loadFlags: 0,
   INHIBIT_CACHING: 0,
   VALIDATE_ALWAYS: 0,
   QueryInterface: function()
   {
     return this;
   }
 };