Message Composition

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IMAP Draft Unread Requires Restart

This is a Thunderbird addon that lets you customize the behavior of the IMAP draft unread messages. No more new mail notifications for your drafts!!

Rated 3 out of 5 stars (1)
397 users
Updated Feb. 20, 2018

Asciidoctor for Thunderbird Requires Restart

Type some text in your mail's body, hit the asciidoctor button and transform your mail into a pretty html5 asciidoctor document. Font awesome and code highlighting are enabled.

Not yet rated
2 users
Updated Feb. 16, 2018

AVIM Requires Restart

Vietnamese-language input method editor (IME). Type diacritics directly into any Web page, Web app, or dialog box. Convenient, comprehensive, secure.
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Bộ gõ tiếng Việt cho phép đặt dấu trực tiếp vào bất kỳ trang Web, ứng dụng Web, hộp thoại.

Rated 5 out of 5 stars (39)
1,211 users
Updated Feb. 14, 2018

Send Later Requires Restart

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

Rated 5 out of 5 stars (111)
66,460 users
Updated Feb. 13, 2018

Check Attachment before Send Requires Restart

Confirms to send a mail with any attachment.

Rated 5 out of 5 stars (1)
64 users
Updated Jan. 18, 2018

Single Domain

Warns if you send mail from or to a specified domain. If there are multiple accounts in your profile, you can isolate one so that you can't send mail to that domain from outside or vis versa without warning.

Rated 5 out of 5 stars (1)
254 users
Updated Jan. 16, 2018

Mail Merge Requires Restart Featured

Mass Mail and Personal Mail

Rated 5 out of 5 stars (152)
60,731 users
Updated Jan. 2, 2018

Reply to Multiple Messages

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

Rated 5 out of 5 stars (3)
336 users
Updated Dec. 26, 2017

Grammar Checker Requires Restart

Checks grammar using LanguageTool.

Rated 3 out of 5 stars (6)
2,929 users
Updated Dec. 26, 2017

Flex Confirm Mail Requires Restart

Confirm mail address and attachments based on flexible rules.

Rated 3 out of 5 stars (3)
12,557 users
Updated Dec. 7, 2017

Signature Switch Requires Restart

Switch the signature on/off or choose a new one from your predefined set...

Rated 4 out of 5 stars (191)
70,306 users
Updated Dec. 4, 2017

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 (33)
3,971 users
Updated Nov. 23, 2017

Resubmit Requires Restart

(Re)submit multiple messages to a predefined recipient(s)

Rated 4 out of 5 stars (1)
62 users
Updated Nov. 22, 2017

Reply to All as Cc Requires Restart

Send a reply for recipients as CC except the sender, when you do "Reply to All".

Rated 4 out of 5 stars (4)
435 users
Updated Nov. 21, 2017

Copiar Assunto Requires Restart

Adiciona um botão para copiar o Assunto do email selecionado para a área de transferência

Add a button to copy the Subject line of the selected email to the clipboard

Not yet rated
25 users
Updated Nov. 20, 2017

Attach from Clipboard Requires Restart

Create file attachments directly from the system clipboard.

Rated 4 out of 5 stars (5)
1,700 users
Updated Oct. 26, 2017

Clippings Requires Restart

Save frequently-entered text for pasting later.

Rated 4 out of 5 stars (243)
36,698 users
Updated Oct. 18, 2017

Nextcloud for Filelink Requires Restart

"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.

Rated 3 out of 5 stars (28)
4,691 users
Updated Sept. 29, 2017

Auto Resize Image Requires Restart

Resizer for inline and attachment images (JPEG, PNG, BMP and GIF image formats).
All platforms are supported (Windows, Linux and Macintosh).

Rated 4 out of 5 stars (28)
15,946 users
Updated Sept. 25, 2017

SMTP Switch Reborn Requires Restart

SMTP Chooser.

Not yet rated
267 users
Updated Sept. 20, 2017