jquery设置浏览器首页

$(document).ready(function() {
    if (confirm("您希望将此网站设置为浏览器首页吗？")) {
        if (document.all) { // For IE
            document.body.style.behavior = 'url(#default#homepage)';
            document.body.setHomePage(window.location.href);
        } else if (window.sidebar) { // For Firefox
            if (window.netscape) {
                try {
                    netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
                } catch (e) {
                    alert("此操作被浏览器拒绝！请在浏览器地址栏输入'about:config'并回车，然后将'signed.applets.codebase_principal_support'设置为'true'");
                }
            }
            var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
            prefs.setCharPref('browser.startup.homepage', window.location.href);
        }
    }
});