A few bookmarklets:
javascript:(function(){if (location.host.endsWith('x.com')) location.host='xcancel.com';})()
javascript:(function(){if (location.host.endsWith('youtube.com')) location.host='inv.nadeko.net';})()
javascript:(function(){if (location.hostname.endsWith('instagram.com')) {location.replace('https://imginn.com' + location.pathname);}})()
[1] https://www.reddit.com/r/uBlockOrigin/comments/1cc0uon/addin...
For example duck://player/fqtK3s7PE_k where the video id in youtube url https://www.youtube.com/watch?v=fqtK3s7PE_k
But it doesn't have that overview page like inv.nadeko.net does