rem: return permissionmanager.testPermission(uri, nsIPermissionManager.IMAGE_TYPE); 
add: return permissionmanager.testPermission(uri, "image"); 
context:     isImageBlocked : function() {      var nsIPermissionManager = Components.interfaces.nsIPermissionManager;      var permissionmanager =        Components.classes["@mozilla.org/permissionmanager;1"]          .getService(Components.interfaces.nsIPermissionManager);      var uri = Components.classes["@mozilla.org/network/standard-url;1"]                          .createInstance(Components.interfaces.nsIURI);      uri.spec = this.imageURL;       return permissionmanager.testPermission(uri, nsIPermissionManager.IMAGE_TYPE);    },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/d96d81509fe64c1ad705d11b316dd1dbcb0c47ae/browser.js/buggy/browser/base/content/browser.js