Play YouTube Videos Oldest-to-Newest

One-click tool that plays every video on a YouTube channel from oldest to newest. (Adds a button to the 'Videos' tab.)

---------------------------------------------------------------------------------------------------- [Fix] We have fixed an issue where the “Play Oldest First” button did not appear, which occurred around January–February 2026. This update (v1.1.2) includes changes to keep up with YouTube’s UI updates. If the issue persists, please contact us using the information provided in the Details section. ---------------------------------------------------------------------------------------------------- 1. Overview Press play once and let every video roll from oldest to newest. 2. How to use 1) Install the extension. 2) Open any YouTube channel and switch to the “Videos” tab. 3) Click the new “Play Oldest First” button next to the “Newest” and “Popular” chips. Tip: If you don’t see the button, refresh the page. Note: The button may not work on every channel. 4) A new tab opens and starts an autoplay playlist that runs through every video. 3. Reference 【Free Release】Play YouTube Videos Oldest-to-Newest - Google Chrome Extension - 　https://note.com/popo181231/n/n2e0be7e1a460 ---------------------------------------------------------------------------------------------------- ✦ Changelog: 1.1.2 – Fixed an issue where the button may not appear due to YouTube UI changes 1.1.1 – Partially fixed an issue where the button sometimes fails to appear 1.1.0 – Added multilingual support 1.0.0 – Initial release ----------------------------------------------------------------------------------------------------