could be 4 or even 5 stars but:

1. i'd suggest adding an option to download to a folder other than the location set within firefox and

2. not sure if it's a recent FF update or the add-on itself but it's been failing hard lately. when i set it to close tabs after saving (convenient and seems to speed up the process a bit) it "pretends" to save them but they're nowhere to be found. if i select all and chose "dl selected" or "dl all" with "close after" unselected it usually saves most of the tabs but it's gotten insanely slooooooooooooooooow. like 56k slow.

fixing one or both of these would make it a better add-on and get 5 stars easily.