Review for Automatic Export by xlo.
Rated 4 out of 5 stars
Downloaded it earlier today and seems to work great. Is extremely easy to setup and backups quick, you won't notice it working. There aren't any instructions to speak of but it is obvious how it works because it is so simple and logical.
This review is for a previous version of the add-on (0.2.3).To create your own collections, you must have a Mozilla Add-ons account.