Mar 27, 2020
Small examples of JavaScript Settings for home and favorite pages

<html>
   <head>
      <title>JavaScript Set home page and favorites page (compatible IE With firefox) </title>
      <script>
      //Url: links to be collected; Title: the name of the favorite item
      function AddFavorite(url,title)
      {
         //If the url or title is empty, the default is the current page url and title.
         if(!(url&&title))
         {
            url=document.URL;
            title=document.title; 
         }

         if (document.all)//IE
         {
               window.external.addFavorite(url,title);
         }
         else if (window.sidebar)// firefox
         {
            window.sidebar.addPanel(title, url, "");
         }
      }

      //Url: the link to set to the home page
      function SetHomepage(url)
      {
         //If the url is empty, the default is the current page url.
         if(!url)
         {
            url=document.URL;
         }

         if (document.all)//IE 
         {
            document.body.style.behavior = 'url(#default#homepage)';
            document.body.setHomePage(url);
         }
         else if (window.sidebar)// firefox
         {
            if (window.netscape)
            {
               try
               {
                  window.netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
               }
               catch (e)
               {
                  alert(" This operation was rejected by the browser! Please enter" about:config "And press enter and then will [signed.applets.codebase_principal_support] Is set to 'true', Just double click. ");
               }
            }
            var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
            prefs.setCharPref('browser.startup.homepage', url);
         }
      } 
      </script>
   </head>
   <body>
      <a onClick="SetHomepage('//www.jb51.net/')" title=" set the home page "href="javascript:"> Set home </ a>
      <a onClick="AddFavorite('//'www.jb51.net/' and 'online note) "title =" collection "href =" javascript: "> Collect </ a>
   </body>
</html>