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Notebird

Take notes on emails!

Not yet rated
25 users
Updated Sept. 20, 2021

Colored Diffs

Color diffs sent by SVN/CVS/GIT/Mercurial...

Rated 4 out of 5 stars (20)
494 users
Updated Sept. 19, 2021

Dark Reader

Dark mode for every email. Take care of your eyes, use dark theme for night and daily messaging.

Rated 4 out of 5 stars (13)
3,053 users
Updated Sept. 19, 2021

WarnAttachment

WarnAttachment shows an additional dialog to confirm potentially dangerous attachments. Some attachments like executables etc. are completely blocked. This reduces the risk of malware especially for inexperienced users.

Rated 5 out of 5 stars (8)
2,332 users
Updated Sept. 19, 2021

Profile Switcher

Adds options to launch other profiles.

Rated 5 out of 5 stars (15)
382 users
Updated Sept. 18, 2021

Header Tools Lite

Allows to modify the header and the source of messages

Rated 4 out of 5 stars (46)
835 users
Updated Sept. 16, 2021

Send Later

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

Rated 5 out of 5 stars (234)
70,669 users
Updated Sept. 16, 2021

CardBook Featured

A new Thunderbird address book based on the CardDAV and vCard standards.

Twitter: @CardBookAddon

Rated 4 out of 5 stars (358)
71,677 users
Updated Sept. 16, 2021

CloneMessage

When composing an email, CloneMessage allows you to duplicate the current state of the email.

Not yet rated
3 users
Updated Sept. 15, 2021

Display Mail User Agent T Featured

Displays the mail program with which the selected mail was written

*This addon is compatible with Thunderbird after Web Extesnsions support. Since development and operation check are done on Daily, it may not work on normal Thunderbird.

Rated 5 out of 5 stars (14)
8,446 users
Updated Sept. 15, 2021

ThreadVis

Displays a small graphic visualising the context (thread) of the currently selected email.

Rated 4 out of 5 stars (124)
4,504 users
Updated Sept. 15, 2021

changeQuote

It's an extension that changes the format of reply header.
You can choose between the standard Thunderbird reply header, a detailed reply header or a Customized reply header.
You can configure it in the Tools ->Add-on Preferences -> changeQuote.

Rated 4 out of 5 stars (17)
1,145 users
Updated Sept. 15, 2021

ConfirmBeforeDelete

Ask a confirm before to delete some items

Rated 4 out of 5 stars (8)
1,167 users
Updated Sept. 15, 2021

LocalFolders

Add as many local folders as you want to.
New folders can reside on mapped or network locations.

New 68/78 version !

Rated 4 out of 5 stars (30)
9,522 users
Updated Sept. 15, 2021

Firenvim

Turn thunderbird into a Neovim GUI.

Not yet rated
0 users
Updated Sept. 15, 2021

smartCompose

A smart Plugin which provides functionalities to compose emails.

Not yet rated
17 users
Updated Sept. 13, 2021

TaskDescriptions

Thank you to like this add-on up to now.
TaskDescriptions end in Thunderbird version 78s.

Now on, I start development of independent window entity programs.

August 01st 2021.

Sungho.

Not yet rated
84 users
Updated Sept. 12, 2021

PasteMarkdown&XHTMLForm

Thank you to like this add-on up to now.
PasteMarkdown&XHTMLForm ends in Thunderbird version 78s.

Now on, I start development of independent window entity programs.

August 01st 2021.

Sungho.

Rated 1 out of 5 stars (2)
100 users
Updated Sept. 12, 2021

Mailbox Alert

Mailbox Alert allows you to specify, for each seperate mail folder, a message, sound and/or a system command that will be executed when new mail is found there. ...

Rated 4 out of 5 stars (150)
14,335 users
Updated Sept. 12, 2021

ReplyWithHeader

Outlook style headers and few goodies for Thunderbird.

Rated 5 out of 5 stars (57)
8,511 users
Updated Sept. 12, 2021