Worked perfectly for ages, but now the green button does not appear for videos flagged "Age-restricted video (based on Community Guidelines)". Support form non-functional (domain has expired!) so hopefully you get this message and can sort it out for me and other users! Otherwise, really rad extension.

It works very well

Any tool that lets you download video is better than nothing, and this is updated as soon as it's needed. Does the job when needed, so I'm happy.

Best available, handy download extension to have WHEN IT IS WORKING. YouTube doesn't want us to have the ability to download and keep certain politically incorrect videos that they eventually will delete and so YouTube "messes" with downloader codes and POOF, your green button is gone.

Best one I've found so far. Good job

es uno de los pocos que descarga MP4 con Firefox, amo esa extension.

it works great and all, but the mp4/video part stopped working it says its been disabled when i try downloading a video

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it works now! before it didnt but now it does! im rating it four and not five because you have to pay for a lot of features and it doesnt always work, but its the best extension i have tried!

Works well, except that one needs the paid version of it in order to download at decent quality.