Rated 4 out of 5 stars

I find this extension very useful for mass-downloads. I've also some suggestions that I think could improve add-on reliability, the first of which I think is really important:
1_ Do not stop the downloads when the add-on status window is closed. Instead, when the user closes it, put an average download status percentage on the status bar, or only a button on the status bar to re-open the status window to see how downloads are going.
2_ (Optional) Also related to the upper suggestion, possible integration with the "Download Statusbar" add-on? For example a button on it which shows (as I said above) the average percentage of downloads done for all files in dta.

This review is for a previous version of the add-on (0.9.9.10).