You will need to install a user script manager extension to install this script.
If you own a 3D TV or monitor, this is a must have.
Trying to watch 3D content on Youtube? Youtube forcing anaglyph on you? Sure most people just upload videos as fixed SBS nowadays, but there are some videos using the old 3D format that we used to have options for.
Just played regularly, these videos are anaglyph and going into the 3D options you only have 2D as a choice.
This script adds a 3D SBS toggle button on the top left. Not all videos are uploaded as SBS some are TAB or VR. My script basically just hides the processed video overlay, and shows the raw footage that was uploaded.