Sometimes you want to click a link and force it to open as a new tab rather than stacking on top of your current tab - in my
case, when I'm browsing Facebook sweepstakes listings, I want to always open the Details to determine if I'm eligible to win.
In the past I've had to right-click on the highligted sweepstakes title, then select "Open Link in New Tab" (or simply press "T").

But all you have to do is click the middle button on your mouse to do the same thing - much easier when you're doing a lot like
that.