All modern browsers have the ability to open several websites in the same window with tabs. Using tabs instead of opening multiple windows keeps your screen less cluttered and makes it easier to switch back and forth between websites. Instead of using your mouse to open a new tab, you can just hit CMD and T (CMD is the button with the Apple on it) or CTRL and T on a PC. If you want to switch between tabs without using your mouse, hit CTRL-TAB (the tab key). To close a tab, hit CMD-W on a Mac or CTRL-W on a PC.
All web browsers automatically save web page code, images, and other content to your computer. This saved material is called your browser cache. Your web browser can load local copies of files more quickly than it can download them over the internet, so having a browser cache helps your web browser load websites faster once you’ve already visited them. If a website has been redesigned, sometimes it won’t render properly until you empty your cache, and force your browser to take a fresh look at the site. If you see something funny on a site you normally visit, you can try this and see if it helps.
A web browser is a program on your computer, like Microsoft Word or Photoshop. There are many different browsers available today, such as Firefox, Internet Explorer (IE), Safari, or Google Chrome. The main purpose of a browser is to access or “browse” the internet.