rem: var capabilityString = this._getCapabilityString(aPermission); 
add: var capabilityString = this._getCapabilityString(aPermission.capability); 
context:   _addPermissionToList: function (aPermission)  {    if (aPermission.type == this._type) {      var host = aPermission.host;      var capabilityString = this._getCapabilityString(aPermission);      var p = new Permission(host,                             (host.charAt(0) == ".") ? host.substring(1,host.length) : host,                             aPermission.type,                             capabilityString,                              aPermission.capability);      this._permissions.push(p);    }    },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/5a342fa8c8560f527272e6584c3637706a3af573/permissions.js/buggy/browser/components/preferences/permissions.js