メール作成/編集
Auto Resize Image 要再起動
Resizer for inline and attachment images (JPEG, PNG, BMP and GIF image formats).
All platforms are supported (Windows, Linux and Macintosh).
Mail Merge
Create and Save or Send Multiple Individual and Personalized Messages from a Draft
Signature Switch
Switch the signature on/off or choose a new one from your predefined set.
Stationery 要再起動
Extension to mimic Outlook Express Stationery.
Allow you to use HTML files as templates for mail. Also allow custom template in replies or forwarded mail!
ThunderPEC 要再起動
ThunderPEC semplifica la gestione della Posta Elettronica Certificata (PEC) e delle comunicazioni PCT e FatturaPA in Thunderbird.
Automatic Dictionary
Remembers the language you use with a person or group of people, and switches the spellchecker language automatically for you next time. You do not have to do it manually any more. It remembers and switches it for you.
FlexConfirmMail
柔軟なルールに基づいて、宛先のメールアドレスや添付ファイルに対する確認を表示する事ができます。
(ブランディングの都合により、このプロジェクトは「Flex Confirm Mail」(スペースあり)から「FlexConfirmMail」(スペース無し)に名称変更されました。)
Nextcloud for Filelink 要再起動
"Nextcloud for Filelink" is an Open Source Thunderbird extension which makes it easy to send large attachments with Thunderbird by uploading them first to a Nextcloud server and by then inserting the link into the body of your email.
CategoryManager
Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).
Emoji Menu 要再起動
Adds the ability to easily insert emojis into your composed messages in Thunderbird.
Shrunked Image Resizer
Make your photos smaller, so they don't take forever to email.
*Shrunked Image Resizer is no longer maintained.*
Transliterator
As-you-type phonetic conversion of text from one alphabet to another, as well as transliteration/detransliteration of selected text anywhere within documents. Supports multiple languages and custom transliteration schemes.
Identity Chooser
Identity Chooser helps you to always use the correct identity when composing a new email.
自分のコレクションを作成するには Mozilla アドオンサイトのアカウントが必要です。
あるいは 既存のアカウントへログイン