アドオン

Manually sort folders 作者: Jonathan Protzenko, Itagaki Fumihiko

この拡張機能は手動または自動のどちらか好きな方法で Thunderbird のフォルダペインのフォルダの並び替えを可能にします。 またフォルダペインのアカウントも並び替えることができます。

gContactSync 作者: Josh Geenen

Synchronizes contacts & groups between Thunderbird and Google Contacts.

Rise of the Tools 作者: rsjtdrjgfuzkfg

Moves the toolbar back above the tabbar.

Extra Folder Columns 作者: 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.

Display Contact Photo 作者: Samuel Mueller

Displays the contact photo/image/picture of the sender/recipient while reading or composing a message. Supports photos in a local folder and the 'Face' header for embedded photos. The add-on adds new generic photos and many styling possibilities.

Sender Name 作者: Takahiro Shinagawa

SendWithoutSubject 作者: pastisman

Send without subject and without confirmation alert