Review for Extra Folder Columns by Thany
Rated 3 out of 5 stars
...On an old version of Thunderbird. So please update this add-on. It's probably an easy fix anyway.
To create your own collections, you must have a Mozilla Add-ons account.
...On an old version of Thunderbird. So please update this add-on. It's probably an easy fix anyway.
To create your own collections, you must have a Mozilla Add-ons account.