Hello dear, i m using this add-on since long time and it is one of my favorites. I usually keep disable "Play videos automatically" but suddenly it stop working and videos start to play automatically on opening YouTube video page but after that it works on next videos in current tab. Can't figure out that and plz add a Stop button to to prevent buffering of long videos like this add-on for old layout. "https://addons.mozilla.org/en-US/firefox/addon/youtube-stop-button/?src=search"