Essential extensions for downloads. New ones added as discovered. Keeping this list just to the essentials in this category, so see all my collections for other categories of must-have extensions.
The first and only download manager/accelerator built inside Firefox!
The simplest YouTube Video Downloader for all YouTube Flash sites, period.
Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.
This add-on is a downloader that lets you easily download videos from sites like Youtube, Facebook, Metacafe, Dailymotion, Break, VKontakte and music for example from SoundCloud, Grooveshark and from many other sites...
This simple add-on allows you to download MP4 (iPod-compatible) videos from YouTube, Dailymotion, and Vimeo.
Make the resources behind container pages easily downloadable by DownThemAll!
Allows the download manager to also open in a tab or sidebar, and adds some optional display changes.
Fasterfox Lite: Performance and network tweaks for Firefox, without the Enhanced Prefetching. This is a fork from the original "Fasterfox".
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
Thanks Tekzilla for your awesome review! Click here to see their video: http://youtu.be/BUDqWrJ-Vao
A Statusbar with speed, percentage, time and loaded size (similar to Opera's one)
Integrates Bulk Image Downloader (a Windows only app that must be installed separately) with FireFox. Download full sized images from almost any thumbnailed web gallery. Supports most popular image hosts such as imagevenue, imagefap, flickr, etc.
Note from Mozilla: This add-on has been discontinued. Try Video DownloadHelper instead.
Use filename templates to quickly (or automatically) save web pages/images/links/selected text to pre-defined folders.