rem: for (i in list) 
add: for (var i = 0; i < list.length; ++i) 
context: function cmdUnstalk(e){    e.text = e.text.toLowerCase();    var list = client.prefs["stalkWords"];    for (i in list)    {        if (list[i].toLowerCase() == e.text)        {            list.splice(i, 1);            list.update();            display(getMsg(MSG_STALK_DEL, e.text));            return;        }    }    display(getMsg(MSG_ERR_UNKNOWN_STALK, e.text), MT_ERROR);}
meta: 1567	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1567/fa259d5802055af408dbb58f77a44de8f75eefe6/commands.js/buggy/xul/content/commands.js