useless, does not work!

The best!!

Works well enough and integrates pretty nicely into youtube.

Sometimes the extension will stop working because youtube changed a few things. When that happens, updates usually seem to arrive within a few days.

I've seen some people complain about this extension not offering video+audio streams in certain resolutions on certain videos, but that's hardly developer's fault (since they just "expose" the download links that youtube player uses. If a stream of certain resolution and/or audio quality is missing, it's because Youtube no longer supports that format of stream).

This was a 5 star add-on until this latest update. Now I get this error:
signaturelocal: cannot resolve signature;3

К сожалению, не скачивает видео в 480p и 720p (скачать можно без звука, хотя раньше была возможность скачать со звуком). Если бы скачивало - была бы, похоже, единственной работающей качалкой со всяких ютубов.

Don't wast your time with this add-on, go for "Easy Youtube Video Downloader Express" instead because it works !