The Custom Browser - Version 3.0 Custom Browser is a pretty cool middle ground that represents what may be a whole new way to market your company. What Custom Browser does is let you put your own face on Internet Explorer 4.0. And while the downloadable version available off of the web site offers a cute way to add your own "About" box, company information, buttons and hotlinks, it just gives you a taste of what the wizards at Custom Browser can do for you if you want one built from scratch.