This plug-in has been amazing. I used to have the Google version until it was cancelled by them. VDH kindly switched my license to Firefox.
Highly recommended plug-in.

just easy to use an absolutly funktional .. bravo klapp my hands

Doesn't work on YouTube videos, otherwise works great for me on other websites and does what it claims to do.

Easy to use, fast download

I've been using this recently and it works really well to download some videos embedded to watch offline. Extension works really well. Thanks to the developer for doing life much easier.

I can finally save the video courses and seminars I've bought without problems. Love this extensions!

The best downloader there is

wonderful downloader, extremely fast and reliable :3!!

Super easy to use, many websites can download it

I have been using DownloadHelper for over 10 years and am very satisfied. The donation version, in particular, works excellently.

really couldnt live without this addon. its real value is in sniffing out the url of the video. i use it to copy the url of the file, then send it to jdownloader, which is a faster more dependable download manager, but on some sites, vdh is able to download files when sending the url to jdownloader causes a failure. the renaming feature is amazing but only works when using vdh to do the downloading. although the description says it can download youtube videos, i have not been able to get that to work. i love vdh.