Zoom+in YouTube Videos OwlZoom is an open-source project How to use * for version 2.0.1 :

Select 'Zoom' form YouTube Settings button on the YouTube video you would like to Zoom.
Select how much zoom you need ( max is 2X ).
OwlZoom button will appear on the Video play bar click it.
Visual box will appear the red box is where your screen is dragged it around to adjust.
To back to normal set to 100% or by pressing: SHIFT + B

You can use it in all the three play modes in Youtube (Normal , Stage ,or Full screen ) Note : on 100% you won't be able to scale. Please don't use reviews as a support forum. If you are experiencing problems with the add-on, send a support request: OwlZoom on GitHub Note: YouTube is trademark of Google Inc. This extension does NOT belong or relate to the Google Inc at all and is developed and maintained independently as a fan project.