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ReplyWithHeader

Outlook style headers and few goodies for Thunderbird.

Rated 5 out of 5 stars (94)
10,586 users

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tb_email_grabber Requires Restart

Very basic extension that exports all sender of mails in one folder into a CSV, which includes their fullname and email. The extension adds an option to the folder view context menu. Please select the folder to export before starting the export.

Rated 3 out of 5 stars (5)
5 users

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Header Tools Lite

Allows to modify the header and the source of messages

Rated 4 out of 5 stars (52)
2,589 users

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Font Finder Requires Restart

FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.

Rated 4 out of 5 stars (80)
10 users

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Provider for Microsoft Exchange Requires Restart

The lightning-exchange-provider addon allows you to use Microsoft Exchange calendars in Thunderbird, via Exchange’s web services.

This addon only works with Microsoft Exchange 2007 and above. Exchange 2003 is not supported.

Rated 4 out of 5 stars (56)
5 users

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Croatian Dictionary (Hrvatski Rječnik)

Croatian Dictionary (Hrvatski Rječnik) for Mozilla Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (9)
4,364 users

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Lithuanian spelling check dictionary

Lithuanian spellchecking dictionary for Mozilla applications. Included by default in Lithuanian localized versions of Mozilla software.

Rated 5 out of 5 stars (5)
3,058 users

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AutoProxy-ng Requires Restart

This is a fork of AutoProxy, which can run the latest version of Firefox.

Rated 5 out of 5 stars (35)
2 users

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Greek (el) Language Pack

Greek (el) Language Pack

Rated 2 out of 5 stars (3)
20,460 users

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Español (es-ES) Language Pack

Español (es-ES) Language Pack

Rated 2 out of 5 stars (13)
61,425 users

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Black Oyster Requires Restart

A clean theme for Thunderbird with dark icons on a light background.

Rated 5 out of 5 stars (10)
1 user

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Transliterator

As-you-type phonetic conversion of text from one alphabet to another, as well as transliteration/detransliteration of selected text anywhere within documents. Supports multiple languages and custom transliteration schemes.

Rated 5 out of 5 stars (94)
15 users

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Magyar (hu) Language Pack

Magyar (hu) Language Pack

Rated 4 out of 5 stars (2)
21,013 users

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Lightbird Requires Restart

Standalone calendar UI for Lightning

Rated 4 out of 5 stars (21)
103 users

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Todo.txt Requires Restart

Thunderbird extension for the Todo.txt application

Rated 4 out of 5 stars (15)
94 users

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EMail Address Crawler Requires Restart

Automatically fill your address books or send mass mails with e-mail addresses extracted from all your e-mails.

Rated 4 out of 5 stars (97)
14 users

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Duplicate Contact Manager Requires Restart

Facilitates handling of duplicates in your address book(s). Allow to search and remove similar contacts.

Rated 3 out of 5 stars (114)
99 users

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Close Proxy Authentication Requires Restart

Provides transparent proxy authentication on your enterprise network.
Close authentication dialog if login on proxy failed.

Rated 5 out of 5 stars (5)
0 users

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Google Keep Tab

Adds a button to open Google Keep in a new Tab

Rated 5 out of 5 stars (29)
4,277 users

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No Resource URI Leak

Deny resource:// access to Web content: We fill the hole to defend against fingerprinting. Very important to Firefox privacy. A direct workaround for bugzil.la/863246

Rated 4 out of 5 stars (31)
10 users

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