Firefox ships with a very functional, yet somewhat basic download manager. For the most part, the default tool is adequate for the majority of users, however for those seeking a more powerful tool, check out the DownThemAll extension.

DownThemAll makes the task of downloading any file (images, binaries, etc.) on a web site very easy. As opposed to selecting each file individually, you can select every file on a site or easily pick and choose which ones you want to download. On top of this, the DownThemAll extension boasts an increase of up to 400% in download speeds by using a similar method to torrent downloads. For a more detailed explanation, check out the features page which outlines the available functionality.

Again, this extension probably isn’t for everyone, but power users might be very interested. Do use this extension responsibly though as you don’t need to download every file you come across just because it is easy.