Solution: hold down the command key and click
Command key-left mouse button
Sometimes, especially when you're doing research, you may want to open links without looking at them immediately. There are others ways to do this. You can use the right right mouse button (Or hold down the control key while clicking on your single button) and scroll down on the pop-up menu to choose "open in new tab". But the easiest way is to hold down the command button while you click.