Chrome //
Extensions 
Chrome
Web store
select chrome_id_no,plugin_tag_line,plugin_name,plugin_icon,sitemap_url,oldvsnew_comment from final_chrome_totaldata_sept2022 where MATCH(plugin_name) AGAINST('+video +fullscreen' IN Boolean MODE) order by users desc
Fullscreen Video to Window
Videos will be maximized to the browser window. the difference from fullscreen a video is that it will not block the entire screen.
42Yogis Yoga Video Library Fullscreen Fix
Turns on the Fullscreen Button for the YouTube videos in the 42Yogis Yoga Video Library.
Kissanime Fullscreen - Auto-Play Next Video
Automatically plays the next video in the list without ever leaving fullscreen mode!
Exit fullscreen when video ends
This extension doesn't (read or change or store ... etc) anything as the permission says.
9gag Enable Video Fullscreen
This extension will force the youtube video to enable fullscreen button.