https://addons.mozilla.org/en-US/firefox/addon/video-downloadhelper/ [ 1 ] addons.mozilla.org/en-US/firefox/addon/3006
It can even do regular pictures and such, but not as good as DownThemAll!.
- 2017-10-24 - Confirmed it won't work because of Firefox's UI changes.
2017-07-05 - Some time ago it stopped working properly in Pale Moon. Right now it's always greyed out on Pale Moon 27.0.1 (x86).
- [_] Display in Tools menu
- [_] Display in context menu
- [_] Display icons in system menu
[_] Display download counters
[x] Disable download count cookie
- FEATURE MISSING - I can't disable the shortcut key functionality.
- Quick Download key [CTRL+SHIFT+ALT] [DELETE]
- Open folder key [CTRL+SHIFT+ALT] [DELETE]
Upon clicking the icon [Perform a quick download]
Force detection about size (KB) [x] 
[x] Gallery method enabled
- FIXME - maybe i need to raise the max number of hits
Black List ∞
[_] Share black list
Smart Naming ∞
[_] Anonymously share smart naming statistics
Quick keys ∞
- Download mode [Normal]
[_] Notify quick downloads
Social Share ∞
[_] Enable Social Share
I love this addon..