YouTube Playlist Sorter (A-Z) is a Firefox add-on that automatically sorts YouTube playlists in the sidebar and playlist selection modal in alphabetical order. Override the default usage-based sorting and easily navigate through your playlists.
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PSA: YouTube has had a design update since this extension was created (at least as of April 11th, 2024) that removes listing of playlists in the sidebar, moving them into a singular button called "Playlists" that takes you to a new page with a grid view (and at least, A-Z sorting).
This obviously makes half of the purpose of this extension redundant, however the "Save to playlist" behaviour remains unaffected, so depending on your use case this extension may no longer be of use. As a result, please consider the extension deprecated at this time as no future support will be given.
By default YouTube sorts the order of playlists by usage. This extension overrides that behaviour to be alphabetical (A-Z) in both the main sidebar, and the selection modal that is brought up when deciding which playlist(s) to add a video to.
User reviews
I've been looking for something like this for literal years! I was really happy to find it, and see that it actually does alphabetize playlists in the select playlist modal, however, the option to exclude the default watch later playlist from the alphabetization to keep it at the top doesn't seem to work. I've refreshed youtube several times, and updated firefox, but it still gets sorted along with everything else.
Something that I hoped gets resolved at some point, but a great add-on regardless
Awesome. Would also be cool if you could add a optional feature to set the Liked videos first, so it isn't treated as a playlist and also sorted. I hate that youtube treats it as a playlist.
