This is a viewing area. You can open multiple websites using tabs.

You can find these three buttons on the top left corner of the window. Read the text carefully to learn what these buttons do.

You can find these three buttons on the top left corner of the browser. "Minimize" means make the window smaller. "Maximize" means make the window bigger.

You can find these three buttons on the top right corner of the browser.

A tab is a clickable area at the top of the window. You can open many websites using tabs. Each tab can open one website.

You can click + to open a new tab. 

You can click X to close a tab.

You can open multiple tabs to open many websites all at once.