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Lightning Requires Restart

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Rated 3 out of 5 stars (2.088)
5.731.838 erabiltzaile

Provider for Google Calendar

Allows bidirectional access to Google Calendar

Rated 4 out of 5 stars (1.230)
274.719 erabiltzaile

Manually sort folders

This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.

Rated 4 out of 5 stars (492)
191.286 erabiltzaile

ImportExportTools NG

Adds tools to import/export messages and folders (NextGen)

NEW 78/68 Compatible version !

See Changes below

Rated 4 out of 5 stars (90)
148.842 erabiltzaile

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

Rated 4 out of 5 stars (67)
127.936 erabiltzaile

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 (389)
115.240 erabiltzaile

Enigmail

OpenPGP message encryption and authentication for Thunderbird.

Rated 4 out of 5 stars (255)
98.590 erabiltzaile

Remove Duplicate Messages

Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).

Rated 4 out of 5 stars (229)
80.791 erabiltzaile

Send Later Requires Restart

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

Rated 5 out of 5 stars (193)
66.939 erabiltzaile

Mail Merge

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

Rated 5 out of 5 stars (186)
66.588 erabiltzaile

gContactSync Requires Restart

Synchronizes contacts & groups between Thunderbird and Google Contacts.

Rated 4 out of 5 stars (353)
64.026 erabiltzaile

CompactHeader Requires Restart

Add symbol in header plane to switch between compact and expanded view. Work only for Thunderbird 68.0 and older. Currently, there are no plans to update this for newer versions.

Rated 5 out of 5 stars (187)
58.408 erabiltzaile

CardBook Nabarmenduak

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

Twitter: @CardBookAddon

Rated 4 out of 5 stars (272)
57.139 erabiltzaile

Signature Switch

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

Rated 4 out of 5 stars (231)
55.605 erabiltzaile

TbSync

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 (122)
53.494 erabiltzaile

ImportExportTools Requires Restart

Adds some tools to import and export folders and messages

Rated 4 out of 5 stars (236)
44.800 erabiltzaile

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 (62)
35.478 erabiltzaile

Provider for CalDAV & CardDAV

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 (28)
33.013 erabiltzaile

Addressbooks Synchronizer

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

Rated 4 out of 5 stars (67)
30.167 erabiltzaile

Confirm-Address

メールを送信する前にあて先確認ダイアログを表示するThunderbirdアドオンです。

Rated 4 out of 5 stars (61)
29.560 erabiltzaile