A very good extension, when it works. As soon as YT changes it algorithm, it stops working, and you have to wait or a fix. MP3 sometimes works, and now also the mp4 mvie downloads have stopped. Bummer

every time I download firefox. this extension has to be download.

Simply put this downloader is not working. It shows 0% processing, and retries 3 of 3 times and the video doesn't download. I've tried the following: refresh the page, turn off the (2) ad blockers I use, and even turned off Norton - all to no avail. I then restarted the computer - that was to no avail. I confirmed I have version 24.1 and uninstalled it then reinstalled it - that was also to no avail. I tried my laptop which is set up identically to my desktop - again that was to no avail. So thus I concluded this downloader isn't working...
A family member suggested I try with the VPN enabled and disable Malwarebytes - that was also to no avail...

mostly superb!!!

I can't get it to work. A YouTube video "downloads" in 3 seconds but appears nowhere in my computer.

Absolutely brilliant and regularly updated. I have been using this add-on for a number of years and it has been extremely useful. The latest version is the slickest yet.

ended up several times with a zero byte mp4

Very easy and good quality