Review for Disable DragAndDrop (Thunderbird) by Charles Herold
Rated 5 out of 5 stars
I'm so happy to find this. I'm always accidentally moving folders without realizing it (I need a better mouse) and then my filters stop working properly. No more of that!
This review is for a previous version of the add-on (2.1.0).To create your own collections, you must have a Mozilla Add-ons account.