DownThemAll, Built-In Firefox Download Manager
Download managers are handy programs to manage downloads more efficiently. They usually offer features that web browsers don’t, for instance resuming downloads, speeding them up by separating files into segments that are downloaded simultaneously or options to queue downloads.
DownThemAll is a built-in Firefox download manager that comes with all the bells and whistles one would expect from a download manager. The only difference to third party download managers is the need to keep the Firefox window open to process the download queue and download files that have been added to it.
The integration as an extension offers options that external download managers cannot offer. It is for instance possible to scan a website for downloads with a click on the mouse button.