Mein Lieblings-YouTube-Downloader!

an excellent youtube downloader. strongly recommended

I've been using this add-on for a long time..and , to me.. it is the only reliable YouTube video downloader out there..
Kudos on the developers as ..dealing with YouTube's policies and code is not a wall in the park.
Cheers from Portugal !

It works pretty well. Unfortunately, HD (720p) and more require server processing on the part of the addon's developpers (Youtube having split up sound and video), hence a paid license.
NOTE TO THE AUTHOR(s): a feature allowing to download both files anyways would be nice (without the requirement of server processing on your side): I have tools for merging and converting those files myself locally via an Open Source program.

Works well as a low-def in-browser addon, but no addon app for my (ARM Linux) based platform for hi-def videos.

simple, adequate and reliable!

Schön, dass man auch ohne Upgrade MP4 in HD herunterladen kann. Für höherwertige Formate wurde anscheinend eine Fremdfirma beauftragt, wodurch Kosten entstehen.