Prevent unintended folder movement.

[vladan]

Prevent unintended folder movement.

Disable drag and drop in the folder tree without confirmation.

Thanks.

[Jon]

Thanks for submitting an idea to the Mozilla Connect community! Your idea is now open to votes (aka kudos) and comments.

[siffemcon]

While waiting for implementation, try Disable DragAndDrop. 

https://addons.thunderbird.net/en-US/thunderbird/addon/disable-draganddrop-tb-v2/