Haven't been able to download from Youtube for a while. Other than that, an essential plugin.

他のソフトもいくつか試しましたが、このソフトはほぼ設定なしですぐに使えました

This add-on is the one of my favorites.
I've used it for almost 10 years and for the most part, it does a good job of downloading videos via the Firefox browser, mainly flv and mp4 video, but it works for mpeg, wmv and jpg image files as well.
It's free, never had any issues with malware or adware.
It is almost all that I wish from down-loader, it is very useful and easy to work whit it.
I truly recommended it to everybody.

Does what it says.. would be nice to have preferences of output options instead of all the options they give you, which can get quite busy with multiple videos on a page, but with a little patience it'll get the job done. Thank you!

Works as promised

Does what it says on the label -- zero complaints regarding functionality or compatibility so far. Now, would I really rather not engage an external executable to do this task? Absolutely. But, this seems to fill the gap, at least until someone figures out an internal solution (involving tech stuff more advanced than the tiny bit of top-level scripting I've learned).

As at this date on Firefox version 57 on Linux Mint 18.3, the updated "companion" is generally needed to download anything .ADP to combine vid and audio two streams. On Youtube it worked very well. A blue button appears whilst it's working. If you reload the download drop down menu and click on the blue button, the particular choice you made will have its progress shown in a window. By clicking on the right hand side arrows for entries, one can delete items to clean up the menu of choices. This is keeps things tidier. The extension keeps being advanced to match the twists and turns of Youtube designed to thwart downloading. Downloading and converting( like mp3 ) is a snap. Always wait a good 6 seconds for any video to be detected. On Ubuntu, Linux Mint and other Debian versions of Linux, the download process for the free and needed companion app is dead easy. If a day comes when the extension doesn't work..give the team a couple of weeks to make adjustments to Youtube's current dodge and you'll find it works again. I find it also works on the latest Firefox in Windows 10. Kudo's once more in its long history.

Easy to use. Works with YouTube. It would be better if it can download video from YouKu and Dailymotion also.

Works very well, even where other apps don't, but occasionally only gets a fraction of a video and can't tell that it has. Somehow winds up with "orphans" a lot, but those can be cleared easily. Usually pretty robust.

Très utile pour enregistrer des vidéos type Youtube et autres afin de les visionner sur TV.
La qualité est bonne en général sous format MP4.

module très simple d'utilisation même pour une personne agée... tous mes compliments aux développeurs.. je suis ravi..

not bad just bit slow on converting but the add on is very useful.

Really nice add-on for downloading video from website. I wish it can choose the download folder and renaming with fewer clicks

Very easy to use

Estou me adaptando, parece sem boa ferramenta.

App works well and supports many sites. My only complaint is that you cannot set a default download location using only Windows Explorer but must download their utility.

Video DownloadHelper 是暫時用過所有附加元件中最好的，最有幫助的

very good, exept some www side are not avaible

After using many other video download add-ons, I think I enjoy this one's the best for it's sheer simplicity. A couple of minor tweaks would make this an app I would gladly pay for:

1) sometimes the downloads get "stuck". There is an option to reload the extension, which does fix the problem. It also deletes the existing download. Would be nice to have the existing download just "pick up", similar to how Firefox automatically restores your crashed pages.

2) the user interface can seem complicated for a non-geek, I would imagine. Perhaps simplify it a bit (maybe allow people to choose "advanced options" if they want, but keep the basics...basic.

3) a "sort-by" option would be a God-send. When downloading 50 files at a time, I would love to be able to sort by percentage completed, or total file size, or whatever. This is my most-desired request.

I probably can come up with about a dozen other useful tweaks I think that would make this the most amazing downloader ever, if you want to hear them.

All in all, I'd rate this a 4 out of 5, based on the issues above. If those were fixed and/or added, I would give this 5 stars ALL day long - good job on a great free add-on!

Honestly, haven't had many problems with this add-on since the beginning. Quite easy to figure out and use, most of the videos I downloaded are A-OK.

Though one thing I'd like fixed is is the error message when I cancel a download.