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Provider for CalDAV & CardDAV Requires Restart

This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync". Including iCloud, Google, ownCloud, Nextcloud, Radicale and many more.

Rated 5 out of 5 stars (19)
19,471 users
Updated Feb. 22, 2020

Provider for Exchange ActiveSync Requires Restart

Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync

Rated 5 out of 5 stars (10)
18,899 users
Updated Feb. 22, 2020

DeepDark for Thunderbird Requires Restart

Dark mode for Thunderbird UI

Rated 5 out of 5 stars (22)
1,506 users
Updated Feb. 22, 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 (372)
104,647 users
Updated Feb. 22, 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. 21, 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. 21, 2020

Restart Button

Adds a Restart Button, restarts Thunderbird

Not yet rated
7 users
Updated Feb. 21, 2020

Edit Email Subject Requires Restart

Edit Email Subject for Thunderbird

Rated 5 out of 5 stars (6)
197 users
Updated Feb. 21, 2020

Nostalgy Requires Restart

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

Rated 5 out of 5 stars (201)
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

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

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

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