Fixed
- Copying videos into a playlist now skips entries YouTube no longer has anything behind, instead of sending each one to be refused. A source full of unavailable videos used to crawl. The skipped ones are named, and they stay selected.
- Videos YouTube no longer has are recognised again. They were counted as ordinary videos, so they were not skipped when copying, and they were grouped under a meaningless name in the channel list.
- "Failed to add" now says what it usually means: the video is no longer there.
- The channel filter keeps the channel's name after you delete its last video, instead of showing an internal id.
- A clearer message when YouTube will not share your sign-in. It used to tell you to log in when you already were; now it says to sign out of YouTube and back in, which is what fixes it.

Changed
- The anonymous usage counts record Edge and Opera separately from Chrome. Nothing new about you is collected.
- The Discord link opens the community's current entrance.

The 2.1.0 note ran to 2,995 of 3,000, so the browser-family sentence couldn't simply be added — it displaced 2.1.0's feature paragraph, which the reviewer has already seen anyway. That sentence stays in because AMO scrutinises data collection hardest, and a reviewer finding an undisclosed new field is a much worse conversation than one who was told.

New
- Playlists you saved from other people now appear in the Playlists menu, from any YouTube page. Open one to search it, sort it, or copy its videos into a playlist of your own.
- List view shows each video as a single row, and Full page makes the dashboard fill the whole window. Both choices are remembered.
- An important notice can open once when you open the dashboard. Words and links only.

Changed
- Searching the sidebar's channel and topic lists is now free for everyone.
- Clearing out a lot of videos is far quicker: deletes and playlist adds are sent in groups. 126 videos deleted in 31 seconds, where that many took about nine minutes before.
- The delete confirmation says exactly what will happen, with the count on the button, and the dialog afterwards shows how many videos and how many hours you cleared.
- Rating the add-on takes you to the store you installed it from.
- Confirmations and results work from the keyboard, and screen readers announce them as dialogs.

Fixed
- Copying a playlist into Watch Later keeps its order instead of arriving upside down.
- Videos copied to another playlist arrive in the order shown on screen.
- Delete and Move are no longer offered on playlists you cannot edit; hovering says who owns it.
- Videos show their channel instead of reading [unknown].
- Announcement links are readable in dark mode, and announcement dates show the right day west of UTC.
- Tooltips on greyed-out buttons are readable.