window.opener=null;
window.open('','_self');
window.close();

使用上述js代码关闭Chrome窗口时弹出错误信息：Scripts may close only the windows that were opened by it

解决方法：

function closewin(){
    if (navigator.userAgent.indexOf("Firefox") != -1 || navigator.userAgent.indexOf("Chrome") !=-1) {
        window.location.href="about:blank";
        window.close();
    } else {
        window.opener = null;
        window.open("", "_self");
        window.close();
    }
}