atomicpoet, Trying to migrate from YouTube to PeerTube?
PeerTube Companion, a Firefox extension, will redirect you to a PeerTube version of a video, when trying to reach it from YouTube -- if it's available on PeerTube.
It's under heavy development, so use at your own risk.
https://addons.mozilla.org/en-US/firefox/addon/peertube-companion/