Awesome plugin, it would be nice if we could get the restore old UI like how the discontinued Youtube Enhancer works in Chrome, I just noticed today when trying it automatically restores the old UI. Also just that and an option to pin the player when scrolling down with adjustable sizes and different positions, just like in the old discontinued one and man this plugin will be NUMBER 1!!! Now I have to just use like 5 different plugins and combine them for the features I need but hoping in the future I can remove a few and only use this one and a few others perhaps instead of 5 plugins and 2 tampermonkey scripts. One script to restore old UI ofc and few others. Thank you so much for your work! Hope youtube doesn't remove their old UI fully too soon or I'm gonna be annoyed lol ah well. I'm sure people will be able to re-create it somehow with css theming or something I hope. I cannot stand this new UI will always figure a way to replace it. One last option I think could be added to your plugin is restoring the smaller icons only in theater mode, instead they use these bigger icon versions. Maybe this ublock filter could help you implement this feature itself. Fix the wwwdot i cant send links in FF review's.

uBlock filter: !Sep 8, 2025 wwwdotyoutubedotcom FIXES BIG UI IN PLAYER WHEN SET TO THEATER MODE - YOUTUBE
wwwdotyoutubedotcom##+js(rc, ytp-big-mode, , stay)