YouTube now works! And it works with the dark themes in Enhancer for YouTube and all the other enhancements I've activated - excellent add-on, thank you.

Dude it fixes the stupid dynamic player thank you!

Makes YouTube usable again after the unforgivable switch to the Shadow DOM v0 API.

It actually does what is advertises but removing it doesn't restore Youtube's new layout. Tried going to youtube.com/new but didn't work so did a search and found that developer's github guide to restore it worked well.
It's a good extension for people that don't use Youtube's dark theme

After disabling it firefox no longer blocks the large default youtube player and it now scales with the window size. Update needed.

Thanks to the Dev for making this. Youtube is so much smoother now! Works like a charm! Also works well with Magic Actions Youtube Add-on as well!

esta bueno, ya despues de un tiempo espero ver la optimizacion que se dice por ahi en los foros sobre la api anticuada que usa youtube aun...

despite performance i simply like old design more. thanks

Doesn't work well on my 1440p monitor. Loads fast but screws up the page.

Fixes what should have never been a problem.

Broken in 1440p

Funcionou perfeitamente contra o Shadow DOM.
Com a extensão, o YouTube voltou ao desempenho normal.

Just works.
At least I can see Youtube comments with this addon.

very nice add, YT much faster now ! but plz add dark theme in next release