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Proton Calender Toolbar Button

Adds a Proton Calender button to the toolbar. The button simply opens a new tab with the https://calendar.proton.me webpage.

Not yet rated
0 users
Updated Sept. 30, 2022

Tag Toolbar / Tag Popup

Add toolbar for toggling tags.

Rated 4 out of 5 stars (75)
15,561 users
Updated Sept. 30, 2022

Netiquette checker and wrapper

RFC 1855 compatible as well as Epita compatible.

This Addon provide a mail checker and an auto 72 column wrapper.
What is checked:
- Subject
- Greeting
- Body
- Salutation
- Quoting
- Signature

Not yet rated
12 users
Updated Sept. 29, 2022

smartCompose

A smart Plugin which provides functionalities to compose emails.

Not yet rated
64 users
Updated Sept. 28, 2022

Mail Merge

Create and Save or Send Multiple Individual and Personalized Messages from a Draft

Rated 5 out of 5 stars (210)
68,550 users
Updated Sept. 28, 2022

MoreLayouts

Adds additional Wide Thread View and Stacked View to Thunderbird along with Reversed views. Plus configurable Fullscreen F11 and Message Pane F8 toggles. Also starring Vertical Tabs.

Rated 5 out of 5 stars (4)
983 users
Updated Sept. 28, 2022

QuickFolders (Tabbed Folders)

The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.

See new mail at a glance after automatic filtering - supports quickFilters addon!

Rated 5 out of 5 stars (177)
18,092 users
Updated Sept. 28, 2022

Old Icons

This replaces the new monochrome icons with the old colorful icons. Based on Phoenity Icons (I only changed some of the icons).

Rated 5 out of 5 stars (17)
1,187 users
Updated Sept. 28, 2022

External Editor Revived

Edit emails in external editors such as Vim

Rated 5 out of 5 stars (1)
77 users
Updated Sept. 27, 2022

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 (4)
203 users
Updated Sept. 26, 2022

keepassxc-mail

MailExtension to get password from KeePassXC.

Rated 4 out of 5 stars (3)
270 users
Updated Sept. 26, 2022

CardBook Featured

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

Twitter: @CardBookAddon

Rated 4 out of 5 stars (384)
71,675 users
Updated Sept. 26, 2022

Expression Search - NG

Powerful message searching:

* Move the search box to save screen.
* Visual search query builder

* Type "f:fred fn:Vortrag" for messages from Fred, attachment name contains 'Vortrag'
* Type "t:(oo -pp)" for messages to oo, but not pp.

Rated 4 out of 5 stars (26)
1,939 users
Updated Sept. 26, 2022

Estimez votre CO₂

Estimez votre CO₂ quand vous rédigez un courriel en un simple clic ! Pendant sa rédaction, cliquez sur l'extension afin de connaître l'émission de CO₂e générée par l'ensemble du cycle de vie. Vous aurez aussi accès à différentes équivalences utiles.

Not yet rated
33 users
Updated Sept. 25, 2022

Telegram Web in Thunderbird

Open Telegram Web in Thunderbird

Rated 5 out of 5 stars (1)
242 users
Updated Sept. 25, 2022

regimail

AddOn for sending regimail with Thunderbird on Windows, MacOS and Linux.

*IMPORTANT:*
In order to use this AddOn, you need to install the regify client on your system and configure it with a valid regify account.

Not yet rated
3 users
Updated Sept. 23, 2022

AWO Zipper 2

Dieses addon ist eine interne Entwicklung der AWO Bonn/Rhein-Sieg. Sie sollte nur auf betriebseigenen Geräten installiert werden.

Voraussetzungen: Es müssen 7-zip und die AWOZipperNativeComponent installiert sein!

Not yet rated
43 users
Updated Sept. 23, 2022

Thread in same folder

Runs after junk classification and filtering to make sure a newly-received message lands in the same folder as its parent in a thread.

Not yet rated
2 users
Updated Sept. 22, 2022

PGP Universal

Fixes encrypted e-mail attachment names from PGP Universal servers

Not yet rated
2 users
Updated Sept. 22, 2022

Rspamd-spamness

Rspamd spam filtering system score visualization.

Rated 4 out of 5 stars (6)
900 users
Updated Sept. 22, 2022