I'm trying to make an extension that fixes some of the enshittification of youtube. The first feature I made is a button that when you click it it opens in a new tab all the playlists a video is in (by that channel) so you don't have to navigate back to their channel tab and search for what playlist it might be in. It's working well.

The second feature I'm trying to add is a way to open a tab with a playlist of all of a creators videos sorted by oldest, so you can watch from the beginning in chronological order. It's insane this isn't a feature on the website already.

Anyway I'm struggling a lot with how to do this, any advice?