The best, easiest and most reliable YouTube add-on for Firefox I've ever had. :-)

Very convenient to use. This is the BEST there is for the purpose of downloading videos on youtube. Updates regularly despite youtube constantly changing their API and UI. Hands down the best extension.

Pretty handy tool.

Great extension. Thanks for regular updates after YouTube changes it's code. Waiting for coming update to fix recent changes.

Proud to support this add-on, the developer deserves it! Works great, makes youtube what it should be. Well supported and maintained.

Great AddOn. Didn't work for a while (download-Button disappeared), but after the last Update today it's there again. Thank you very much!

superb! Works with exceptional ease.you tube actively seeks to prevent users from downloading videos!!

This is a wonderful and very useful Add-on, I like so much!!

Simple to use, and the developer provides frequent updates.

Accurate and easy to use, auto detects the videos to download. Sometimes youtube changes their package in background, so just be patient and wait for an update.

Awesome addon with a great support, works well, kudos to author!

this is great, so much options

Very easy to handle. Good app. Can be recommended.

Really excellent addon. The developer is always working on improvements despite being a solo operation. A fix is currently under development (May 2021) for the download button not appearing due to youtube format changes.

Great Mp3/4 Converter, easy to use and works, great application

Really helps me a lot. And the quality is really good. I recommend.