We introduce a code for adding to favorites that is compatible with all browsers. The general principle is as follows: We judge the browser based on obtaining user navigator.userAgent.toLowerCase() information, and whether the browser supports adding to favorites js command, if it can be automatically collected, otherwise it will prompt ctrl D to collect it manually. 1 function addFavorite2() { 2 var url = window.location; 3 var title = document.title; 4 var ua = navigator.userAgent.toLowerCase(); 5 if (ua.indexOf("360se" ) > -1) { 6           alert("Due to 360 browser function limitations, please press Ctrl D to collect manually!"); 7     } 8   else if (ua.indexOf("msie 8") > -1) { 9 window.external.AddToFavoritesBar(url, title); //IE810 }11 else if (document.all) {12 try{13 window.external.addFavorite(url, title);14 }catch(e){15 alert(' Your browser does not support it, please press Ctrl D to bookmark it manually!');16 }17 }18 else if (window.sidebar) {19 window.sidebar.addPanel(title, url, "");20 }21 else { 22 alert('Your browser does not support it, please press Ctrl D to bookmark it manually!');23 }24 }

Copy the code of this page and save it as a js file, and then add it where you want to bookmark it Up

 <a href=# rel="sidebar" onclick="javascript:addFavorite2()">加入收藏</a>

If is not added with rel="sidebar" above, an error will be reported: window.sidebar.addPanel is not a function

    {        try
        {
                obj.style.behavior='url(#default#homepage)';obj.setHomePage(vrl);
        }        catch(e){                if(window.netscape) {                        try {
                                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); 
                        } 
                        catch (e) { 
                                alert("此操作被浏览器拒绝！\n请在浏览器地址栏输入“about:config”并回车\n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',vrl);
                 }
        }
    }

<a onclick="SetHome(this,window.location)" style="cursor:hand">设为首页</a>

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