Recently Updated Extensions

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Owl for Exchange

Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird

Rated 4 out of 5 stars (71)
36,290 users
Updated Jan. 18, 2021

TexTra

Thunderbirdのメールのテキストを翻訳、辞書引きを行います。

Rated 3 out of 5 stars (1)
789 users
Updated Jan. 18, 2021

Toggle HTML

Adds a Toggle HTML button

Not yet rated
7 users
Updated Jan. 17, 2021

Compact Headers

Limits displayed headers to 1 or 2 lines.

Rated 4 out of 5 stars (26)
6,710 users
Updated Jan. 17, 2021

Addressbooks Synchronizer

Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers

Rated 4 out of 5 stars (69)
18,441 users
Updated Jan. 16, 2021

Tidybird Requires Restart

Organize email into folders quickly and easily.

Rated 4 out of 5 stars (13)
38 users
Updated Jan. 16, 2021

Textmarker

Highlights selected text when composing emails. Default colour is yellow - other colours are available via Options.
(Works only during writing an e-mail, i.e. only in the compose window.)

Rated 5 out of 5 stars (11)
611 users
Updated Jan. 16, 2021

Quicktext

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 (404)
116,645 users
Updated Jan. 16, 2021

BrowseInTab

BrowseInTab lets you open and browse any link in a Thunderbird content tab. Links are followed within the tab and back/forward navigation is supported. Also with enhanced Zoom customization and a url bar.

Rated 5 out of 5 stars (7)
556 users
Updated Jan. 16, 2021

Autofile - fast e-mail to folder filing

Read an e-mail, hit the Autofile button and it is filed / moved to the right mail folder based on the sender's address. No drag/drop needed.

You may tell Autofile or let it discover folders to store each author mail. Will save you lots of time.

Not yet rated
2 users
Updated Jan. 14, 2021

Attachment Image Viewer/Slideshow

Viewing images in attachments as full size or thumbnail.

* Show slideshow of attached images
* Zoom image
* Drag zoomed image to choose the displayed region
* Rotate image
* Flip image
* Download dialog: shows a thumbnail of the image

Not yet rated
15 users
Updated Jan. 14, 2021

Macro Template

Macro Template is to replace mail templates with macros for date formatting.

Rated 5 out of 5 stars (3)
66 users
Updated Jan. 14, 2021

Signature Switch

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

Rated 4 out of 5 stars (251)
37,624 users
Updated Jan. 13, 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 (13)
6,629 users
Updated Jan. 13, 2021

TaskviewGridLayout

TaskviewLayout has two versions.
One is this TaskviewGridLayout and
another is the existing TaskviewFlexLayout.

TaksviewGridLayout works in Thunderbird version 78.6.0 ~ 86.0a1.

Praise Stephen Kim Sou-hwan.

January 12th 2021.

Not yet rated
2 users
Updated Jan. 13, 2021

Eventview

It seems like taskview,
but it would be enough with a small size because event is different to task.
Of course, tooltip exists, but it shows information of events formally.

Be a light.
I thank God!

Not yet rated
31 users
Updated Jan. 12, 2021

DeepL Selected Text

Unofficial DeepL translate extension for Thunderbird.

Rated 4 out of 5 stars (3)
794 users
Updated Jan. 12, 2021

CardBook Featured

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

Twitter: @CardBookAddon

Rated 4 out of 5 stars (305)
65,242 users
Updated Jan. 12, 2021

LookOut (fix version)

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

Rated 4 out of 5 stars (70)
149,066 users
Updated Jan. 12, 2021

Firenvim

Turn thunderbird into a Neovim GUI.

Not yet rated
0 users
Updated Jan. 12, 2021