Rated 4 out of 5 stars

I mainly use it to batch-download galleries from Vkontakte. It is the only add-on with this functionality, where it actually works. The download of the file-hosters is quite a bit slow, but nevertheless nice...
One issue: Addonbar/Toolbar icon is too large / too high.

This review is for a previous version of the add-on (1.30.1-signed).