Heya, there's a bug that's currently making this not work for me.
Might be due to a youtube experiment/change or some other other userscript/extension.
But in any case, I've fixed the script locally so it works for me.
In appendDurationToPlaylistHeader's first line, change:
Heya, there's a bug that's currently making this not work for me. Might be due to a youtube experiment/change or some other other userscript/extension. But in any case, I've fixed the script locally so it works for me.
In appendDurationToPlaylistHeader's first line, change:
document.querySelectorAll('div#publisher-container')[2]
to
document.querySelector('#content div#publisher-container')