Firefox addon to organize downloads

Question

Is there a firefox addon to re-direct downloads to different folders based on conditions?

For example:

if file is a video format
   download to "My Videos"
if file is a picture format
   download to "My Pictures"
if file is a music format
   if filename contains "twit" or "sn"
      send to "My Podcasts"
   else
      download to "My Music"
else
   download to "Desktop"

Answer 1

Try Automatic Save Folder.

Answer 2

Download Sort works with the latest version of firefox.

You may wish to browse the Download Management plugins list.