I guess you want one of these
https://ctf0.wordpress.com/2018/04/07/how-to-get-rid-of-the-damn-youtube-sidebar-for-good/
https://chrome.google.com/webstore/detail/unhook-remove-youtube-rec/khncfooichmfjbepaaaebmommgaepoid?hl=en
https://chrome.google.com/webstore/detail/df-tube-distraction-free/mjdepdfccjgcndkmemponafgioodelna/related?hl=en
Hello everyone!
Couple mounth ago I find a script on this site, that keep YouTube left sidebar whit library, subscribes and others always hide by default. It was so good, whit out him I every time pick to hide this sidebar by my self and this too annoying me.
But I delete Chrome and forgot to save this scrip. Now I can't find it. Please help me! I be so grateful! Thank you