Message Composition

Subscribe

Stop Ignoring Reply:To Requires Restart

Default "Reply" functionality pays attention to "Reply-To" in original email

Rated 5 out of 5 stars (9)
413 users

Reply to Multiple Messages

Add menu commands for replying to multiple messages at the same time.

Rated 5 out of 5 stars (5)
607 users

ThunderHTMLedit Requires Restart

Thunderbird HTML editor. This add-on adds a HTML tab to the composition window where you can see and edit the HTML source of the message.

Rated 5 out of 5 stars (12)
5,121 users

Send Later Requires Restart

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (142)
72,832 users

MEGAbird Requires Restart

Add MEGA support to Thunderbird's Filelink feature.

Rated 5 out of 5 stars (15)
3,091 users

SmartTemplate4 Requires Restart

SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.

Rated 5 out of 5 stars (54)
18,173 users

CategoryManager Requires Restart

Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).

Rated 5 out of 5 stars (9)
4,762 users

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.

Rated 5 out of 5 stars (94)
80 users

Address bulk copy (アドレス一括コピー) Requires Restart

Thunderbird は Outlook のようにアドレス全選択からの「一括コピー」ができません。
それを実現するためのアドオンです。

Rated 5 out of 5 stars (6)
1,639 users

Mail Merge Requires Restart Featured

Create and Save or Send Multiple Individual and Personalized Messages from a Draft

Rated 5 out of 5 stars (168)
64,284 users

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.

Rated 5 out of 5 stars (40)
5,837 users

ThunderPEC Requires Restart

ThunderPEC semplifica la gestione della Posta Elettronica Certificata (PEC) e delle comunicazioni PCT e FatturaPA in Thunderbird.

Rated 5 out of 5 stars (12)