great add-on, but I have one suggetion... Rated 5 out of 5 stars
Add an option that let's the user add a download to the list without it starting immediately. This would allow the user to add multiple files to the download list without slowing down the browser. Then, on the download manager tab, there should be a button that says "Download all files now."This review is for a previous version of the add-on (0.9.5.1-signed).