Honestly, if you only want minimal functionalities, just change the url from youtube.com to invidio.us then download the video.

I find Video Downloadhelper almost invaluable in capturing videos from websites (and thus allowing me to watch then in my own time or on other devices, rather than be stuck in front of a desk bound screen).

Sadly, it doesn't download to Firefox on iOS and sticks an ugly visible QR code in the left hand corner of the video unless you actually buy the add-on. I would have done this long ago IF they (VD) had advertised this fact UP-FRONT before installation/use.

Right now this behavior just annoys me and makes me more selective about which videos I do download. It's a shame (and a request) to provide a function (for the purchased version) which would retroactively remove the QR code from captured videos. In fact on 'off-days' I'm sorely tempted to put aside some time to write my own VD add-on just because of this.

Otherwise, it has a great set of features, options and conversions that are truly useful.

Cheers

Good addon. Sure, one of the best video downloaders BUT it charges money for some type of videos and insert a big QR in the upper left corner.

used it for 3 months. worked badly these days. the explorer easily broke down while videos are being downded,and then nothing can be done to anything in the pc. I choose to restart my laptop. trying to figure it out.

すごく優秀なソフトです。

Trop compliqué, lorsque qu'un problème survient de le réintégrer dans Firefox.
il faut passer par Google .

Audio skips

der download helper war bei mir schon einmal schneller

特に問題なく使えているものの、ネット環境によるのか極稀に失敗する事もあります。またFirefoxでは動作しますがGoogleChromeでは動作の最後で必ず失敗します。いずれも日本語環境によるものかどうか詳細は不明です。

Still the best out there