The square will expand and read: ‘New Tab’. To open a new tab, you'll just have to tap on the space next to the active website in the command line. The logo and name of the website will be displayed within the tab beside the ‘X’ (that you can press to exit the webpage). There can be multiple tabs opened at once. The pages that are open in the browser are shown as tabs to the right of the location bar. The ‘X’ icon can immediately stop the refresh process on pages. If there are issues loading website pages, then you can click on the arrow button next to the magnifying glass to refresh the content. You can expand the dropdown menu next to the magnifying glass to search pages. The search, refresh, and stop icons are subtly placed along the URL bar. The standard backward and forward buttons are on the left side of the line.
The command line houses the main content in the Internet Explorer 9 web browser. The three icon lines found in IE 8 were reduced to a single command bar in IE 9. The UI went from chaotic to minimalistic. IE8 had a cluttered user interface, which the IE9 update fixed.
Internet Explorer 9 was a monumental upgrade from Internet Explorer 8 and the versions that came before that: Internet Explorer 7, Internet Explorer 6, etc.