Using The New Volume Mixer

In a niche but nice touch, the Windows 10 Fall Creators Update adds the ability to individually control the volume of universal Windows apps without affecting the overall system audio using the Windows Volume Mixer. You'll be able to use the Volume Mixer to control the volume of individual Edge browser tabs as well, not just Edge as a whole. You can't do that with Chrome or Firefox. To access this new feature, right-click on the Speaker icon on the taskbar and select 'Open Volume Mixer'.