Close-up of the F9, F10, F11, and F12 function keys on a keyboard - Professor25/Getty Images For almost every PC or Mac user, a keyboard and either a mouse or a trackpad are more than enough to ...

Thankfully, no matter what browser you use, there's a litany of function key shortcuts that are common across all these apps. Let's start with the F4 key, which is useful to bring up your browser's ...

For almost every PC or Mac user, a keyboard and either a mouse or a trackpad are more than enough to navigate these systems without too many problems. In fact, it might be a bit too easy — people are ...