Update see first post
I've added support for Dailymotion videos
Dailymotion is a video hosting service like YouTube. Though not as popular as YT, links to DM videos often appear in DuckDuckGo search results.
Links may look like this:
https://www.dailymotion.com/video/x7z81tt
or (when copied from Google search results):
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=video&cd=&cad=rja&uact=8&ved=2ahUKEwir1ebiqMr6AhWbat4KHXy2CEkQtwJ6BAgEEAI&url=https%3A%2F%2Fwww.dailymotion.com%2Fvideo%2Fx7z81tt&usg=AOvVaw32yv_rr_3MgPpfOJsFHZhx
The script will convert them to the embedded format
https://www.dailymotion.com/embed/video/x7z81tt?autoplay=1
(Click here to try above link)
There are also URLs that lead to playlists on the DM main site, e.g. https://www.dailymotion.com/playlist/x3fu94
Videos on such a playlist site can be played in the provided embedded player (or fullscreen), but converting them with the script makes it possible to play them in their own window.
Compared to YouTube's main site the DM site is light weight and runs without stress on Palemoon, even without ads (haven't seen any so far) . The DM player seems a bit heavier than the YT player and embedded videos tend to start slower and with less resolution.