コンパニオンを導入した場合。
無料版は、動画にロゴを入れるために無駄な再エンコードをします。CPUが多く使われます。
YouTubeやニコニコ動画を開いたあと、何もしていない状態でもCPUが１００％に上昇することがあります。
Javascriptがタスクマネージャで動作して暴走しているのが見えました。
それを削除すれば平常に戻ります。
しかし、Javascriptが動作していなくてもCPUが１００％になることがあります。
Video DownloadHelperを無効にして、動画を閉じると平常に戻ります。
そのため、私は通常、Video DownloadHelperを無効の状態で使っています。

Simple and reliable. It does what it's supposed to do, and does it impeccably. I have been downloading videos from any website I want.

Does not catch anything from FranceTV (listed under "supported websites") beside an ever-expanding list of 20~700 kB MP4 files, all of which are unreadable.

this app is awesome. i love it

Good luck

Not working as well as before. Now tries to trick you into upgrading for $$ to get full functions.

I downloaded & installed but cannot find the DWH icon

Чумовое дополнение для закачки видео. С приложением-помощником качает очень хорошо. Спасибо разрабам.

WARNING!!! DO NOT INSTALL THIS EXTENSION!
It's an adware, quite propably dangerous. Every time I try to use it, it tries to redirect me to another website to download a "companion app" to execute the task the extension was supposed to do.
I've already reported it to Mozilla.

Just got the automated message that I downloaded my 200th video. This add-on is awesome! The interface could be a little more user-friendly though, cause often there are WAY to many download-options to choose from (some completely useless), hence "only" 4 stars

maybe the best video downloader in any browser,especially in firefox

Champion of all Video downloaders. Capable of downloading any file from any site. No ads no nagging pop ups. An asset for Firefox users.

用起来很方便，推荐，如果支持哔哩哔哩的视频就好了