Floating bar for external web pages
<p>Is there a way to display a floating nav bar and when a user clicks on a link within the nav bar, it opens an external page within the same browser window? </p>

<p>I've tried embedding an iframe within a page. It works for some sites but doesn't work for all sites since many sites require their page to be at top level. I know there are plenty of cross-site security concerns, so I'm not sure if it's even implementable or there are alternatives.</p>

<p>Cheers,</p>
