Chào mừng đến với tiện ích Thunderbird.
Add extra features and styles to make Thunderbird your own.
Đóng![Icon of Extra Folder Columns](https://addons.thunderbird.net/static/img/addon-icons/default-64.png)
Extra Folder Columns 1.1.5 Bắt buộc khởi động lại
bởi Joey Minta, Thunderbird Development Team
This extension is for those TB3 users who want the multiple-columns view that TB2 allowed
IMPORTANT: If you are using Thunderbird 38 or later, uninstall this addon. The functionality is in core now.
Giới thiệu về Tiện ích này
See https://support.mozilla.org/en-US/kb/new-thunderbird-38#w_expanded-folder-pane-columns for changes in Thunderbird 38, as this functionality is now in core.