Recently Updated Extensions

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Nostalgy Requires Restart

Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.

Rated 5 out of 5 stars (200)
3,347 users
Updated Feb. 19, 2020

TbSync Requires Restart Featured

TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.

Rated 5 out of 5 stars (83)
37,253 users
Updated Feb. 19, 2020

Undigestify Requires Restart

Undigestify RFC 1153, ListStar, and Yahoo digest messages

Not yet rated
92 users
Updated Feb. 19, 2020

Remote Content By Folder Requires Restart

Decide whether to allow or block remote content in messages by comparing the names of the folders in which they are located to configured regular expressions.

Rated 3 out of 5 stars (2)
66 users
Updated Feb. 19, 2020

IMAP Received Date Requires Restart

Make the “Received” column in IMAP folders show when messages were actually received.

Rated 5 out of 5 stars (11)
3,109 users
Updated Feb. 19, 2020

Quicktext Requires Restart

Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.

Rated 4 out of 5 stars (371)
104,647 users
Updated Feb. 19, 2020

FileLink Provider for Box

Uploads your large attachments to your Box instead of sending them by email.

Rated 3 out of 5 stars (2)
4,298 users
Updated Feb. 19, 2020

FileLink Provider for Dropbox

Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.

Rated 4 out of 5 stars (6)
8,303 users
Updated Feb. 19, 2020

Display Mail User Agent T Requires Restart

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 (5)
2,488 users
Updated Feb. 18, 2020

LookOut (fix version) Requires Restart

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Support: Thunderbird and SeaMonkey

Rated 4 out of 5 stars (51)
148,324 users
Updated Feb. 18, 2020

*cloud - FileLink for Nextcloud and ownCloud

Upload large attachments to your Cloud and send the link by email

Rated 5 out of 5 stars (2)
915 users
Updated Feb. 18, 2020

DevTools Button

Adds a DevTools Button, opens the Developer Toolbox

Not yet rated
7 users
Updated Feb. 17, 2020

Thunderbird Conversations Requires Restart

This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.

Rated 4 out of 5 stars (456)
21,876 users
Updated Feb. 17, 2020

Compact Headers

Adds a Compact Headers button, limits displayed headers to 2 lines

Not yet rated
1 user
Updated Feb. 17, 2020

FrameWhite

Enjoy white without eye fatigue!
FrameWhite is applicable/available in default theme!

send a gift to a friend Eunjo.

Not yet rated
3 users
Updated Feb. 15, 2020

SmartTemplate4 Requires Restart

SmartTemplate⁴ offers an easy and powerful way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every mail identity, Stationery files can now be imported and used directly.

Rated 5 out of 5 stars (64)
11,324 users
Updated Feb. 14, 2020

TaskviewStyles

Change taskview styles

Not yet rated
1 user
Updated Feb. 14, 2020

OppositeTodaySubpane

Today subpane is a emblem of Thunderbird.
When today pane is hidden for a wide view,
someone feels sorry not to have this today subpane on screen.
It is to remain today subpane on folder and subscription pane.
send a gift to a friend Eunjo.

Not yet rated
17 users
Updated Feb. 13, 2020

RemindIt

Help in reminding mails to be answer or sent again. Choose a reminder date for each received or send message that are highlighted in the message list, depending on their status (expired, soon to exprire, to be reminded). Sending a reminder is eased.

Rated 3 out of 5 stars (23)
98 users
Updated Feb. 13, 2020

DeepDark for Thunderbird Requires Restart

Dark mode for Thunderbird UI

Rated 5 out of 5 stars (20)
1,506 users
Updated Feb. 12, 2020