I installed this extension that as a download manager it has proper support for resuming timed out downloads (in fact this is no.1 on the feature list). Sadly the resume button did nothing while the same in FF's internal download window did. So this extension is utterly useless to me.

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别用这个，太坑了，下载10个东西9个下不下来，断了之后重新开始会失败，也没法点开来看看里面的网址，失败之后还有个彻底失败，彻底失败你连你下载的东西的名称都看不到，变成一团乱码，也就是说你都不知道究竟没下载成功的是个什么文件

Doesn't work as purported by some FF users who claim that it will stop the network failed error which prevents downloads from completing and having to start all over again.

Fake. Absolutely not accelerating and restoring the connection due the download from rapidshare

Doesn't work for me on YouTube. Only downloads a file under 2 mb named "unkown". Context menu click says no files are available. Works from toolbar, but doesn't download the video. On Windows 10 64bit with newest Firefox.

useless didn't even catch any downloads

This add on has a serious issue and needs to be fixed. I am having to double click on everything link bookmarks, clicking on anything on web pages. It seems this add on is taking focus off when I am surfing the web. As soon as I disable it, the problem goes away and it started happening the moment I used this add on. Example: If I click on a bookmark, I often have to press it two times to make it work. The same for clicking through anything on pages. This add on is clearly the problem. Can you please fix the Focus problem issue.

Бесполезный загрузчик- не скачивает видео

What multi-threading? there hasn't been any available in years. Completely worthless

Doesn't resumes failed downloads
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No continúa descargas fallidas

dieses addon ist nicht zu gebrauchen, zu kompliziert und man kann nichts herunter laden, da ist der downloadhelper noch besser als dieses addon. zu kompliziert dieses addon um filme oder musik zu laden.
schade.
es gibt leider nur noch schrott, meist funktioniert es nicht.
das ganze addon auf englisch

another add-on that wants to download mp3s from youtube as a file that is 6kb in size

Does not work at all. Useless

click on the download link and all you get is a page of text...DOESN'T WORK! USELESS!!!!

It doesn't download any faster than base firefox, totally useless

It has almost no options for control over functionality or behavior.