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Mail Merge

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

Rated 5 out of 5 stars (226)
62,866 users

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LookOut (fix version)

LookOut decodes winmail.dat (TNEF encoded) files that may come from a misconfigured Microsoft Exchange server or Outlook user allowing access to the original attachments
Support: Thunderbird

Rated 4 out of 5 stars (95)
159,618 users

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DKIM Verifier Featured

Verifies the DKIM-Signature of an e-mail.

Rated 4 out of 5 stars (45)
17,577 users

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Wörterbuch Deutsch (de_DE)

Deutsches Wörterbuch igerman98 (de_DE, Deutschland, "neue" Rechtschreibung), für Firefox, Thunderbird und Seamonkey.

Rated 4 out of 5 stars (24)
37,322 users

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Dizionario italiano

Add support for Italian to spellchecking

Rated 4 out of 5 stars (71)
73,092 users

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Send Later

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

Rated 5 out of 5 stars (263)
98,257 users

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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 (463)
119,035 users

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LookOut 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).

Rated 4 out of 5 stars (158)
1,328 users

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English (en-GB) Language Pack

English (en-GB) Language Pack

Rated 2 out of 5 stars (31)
105,322 users

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Password Exporter

This add-on allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.

Note: This add-on won't work in Firefox 57. It may eventually if the APIs to access passwords are implemented.

Rated 4 out of 5 stars (551)
94 users

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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 (290)
91,605 users

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Polski slownik poprawnej pisowni

Polski słownik poprawnej pisowni dla Firefoksa, Thunderbirda i SeaMonkey.

Rated 5 out of 5 stars (50)
49,028 users

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MinimizeToTray revived Requires Restart

Minimizes windows into the system tray.

Rated 4 out of 5 stars (395)
1,123 users

Download for Linux Download for Windows

Element Hiding Helper for Adblock Plus

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Rated 5 out of 5 stars (473)
324 users

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Woordenboek Nederlands

Woordenboek Nederlands met de woordenlijst van OpenTaal.

Rated 3 out of 5 stars (70)
22,076 users

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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 (251)
69,173 users

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Русский словарь проверки орфографии

Русский словарь проверки орфографии

Rated 4 out of 5 stars (136)
12,395 users

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QuickNote Requires Restart

A simple note-taking extension.

Rated 5 out of 5 stars (204)
64 users

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Verificador Ortográfico para Português do Brasil

Possui a maioria das palavras existentes em português do Brasil, de acordo com o novo acordo ortográfico que entrou em vigor janeiro de 2009. É Atualizado constantemente.

Precisa de ajuda?
facebook.com/RescueLanguage
rescuelanguage.sf.net

Rated 5 out of 5 stars (75)
6,001 users

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Mail Redirect Requires Restart

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

Rated 4 out of 5 stars (144)
2,856 users

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