There's only one person working on this, and they work very diligently to update the code to keep it working. If you're worried about the download not working please be patient, the dev has to consistently update it because youtube keeps trying to block downloading services like this one. Overall this addon works good and I reccommend donating.
The only complaint I have is, why does the addon need permissions to "Access your data for ALL websites"?

does exactly what you want it 2

Very nice add-on. Very well designed.

Easy and nice. Great work !!!

Works with Webm. Many videos are Webm. Converter works well.

Easy Youtube video downloader is really simple to use, works quickly and copies perfectly. Video downloader delivers good quality videos whether music or films. They are usually quick to fix and upgrade any qliches which enables this app to work smoothly. It's the best 'find' for me online; they also give you the option to write a review, buy a cup of coffee or donate, which I think is fair. Thank you all sooo much engineers.

Love this! It works really well

...great add-on ! Works excellent for me!

ou, Best! no fants.