Setup picture-in-picture for Chrome on your Mac
With this multitasking pro tip, you’ll be able to view YouTube videos at the same time you browse the web or do other things on your Mac. It’s a feature commonly referred to as picture-in-picture or PIP for short. Using a free application for Mac call Helium it will float a small window with the video over your other Mac applications. The program is even better when combined with a few browser extensions. View this video for a full demonstration and steps to install everything you need.