收藏网址代码来源链接：https://blog.csdn.net/web_note/article/details/78

AddFavorite = () => {
    let url = window.location;
    let title = document.title;
    let ua = navigator.userAgent.toLowerCase();
    url = encodeURI(url);
    try {
    	window.external.addFavorite(url, title);
    } catch (e) {
    	try {
    		window.sidebar.addPanel(title, url, '');
    	} catch (e) {
    		alert('抱歉，您所使用的浏览器无法完成此操作。\n\n加入收藏失败，请使用Ctrl(Command)+D进行添加');
    	}
    }
};

setHome=(obj,vrl)=>{
    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]的值设置为'true',双击即可。");
            }
            var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
            prefs.setCharPref('browser.startup.homepage',vrl);
        }
    }
}
	
<!-- 设为首页 -->
<Button onClick="()=>this.setHome(this,window.location)">设为首页</Button>

<!-- 加入收藏 -->
<Button onClick="this.addFavorite">加入收藏</Button>

来源链接：blog.csdn.net/web_note/ar…