It's good, but I wish it that for the "Holodex Button on YouTube" it would give an option to just show the button without the text (or to show the button within the youtube player itself), because I have additional buttons due to the "Improve YouTube!' 🎧 (for YouTube & Videos)" addon, and having the Holodex button too makes the three-dots menu next to the "share" button unclickable because it gets moved too further to the right and it clips under the "show more/show less" button. So until it gets fixed I have to disable the "holodex button on youtube", which is unfortunate.

other 1 star review is correct, this extension has caused the video controls to not show for months

If you're using the holodex website and the youtube player is broken. Uninstall this addon.

I'd love it if you guys could add a button to open a video you're watching on YouTube on Holodex.