Rated 4 out of 5 stars

I noticed that the majority of the preferences for this extension are stored in places.sqlite and not in prefs.js (or another flat file) -- which means my layout, folders, links, etc are all lost when the database becomes corrupt -- as I recently learned. Luckily I had a backup of my entire profile so I didnt lose too much of my layout. The ability to import/export, or save backup copies would be great.

This review is for a previous version of the add-on (2.1.0). 

Thanks for your review. The ability of export/import all settings is already implemented, you can find it in Options under Extra tab.