Add-ons

by Wiesław Świergała

  • Updated Sept. 2, 2023

About this Collection

8 Add-ons in this Collection

Provider for Google Calendar by Philipp Kewisch

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Rated 3 out of 5 stars 1,658 reviews

186,588 users

Allows bidirectional access to Google Calendar

LookOut (fix version) by Oleksandr, Dugite-Code

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Rated 4 out of 5 stars 96 reviews

166,760 users

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

TbSync by John Bieling

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Rated 5 out of 5 stars 262 reviews

64,771 users

TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.

Addressbooks Synchronizer by Günter Gersdorf

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Rated 4 out of 5 stars 81 reviews

24,675 users

Synchronizes selected addressbooks with other instances of thunderbird
using local files, webdav servers or imap servers

CategoryManager by John Bieling, kxxt

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Rated 5 out of 5 stars 25 reviews

7,179 users

Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).

ImportExportTools NG by Christopher Leidigh

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Rated 4 out of 5 stars 220 reviews

251,846 users

Adds tools to import/export messages and folders

EML, MBOX, HTML PDF , Plaintext Support and CSV support with indexes and file naming.

Simple Mail Redirection by Günter Gersdorf

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Rated 5 out of 5 stars 37 reviews

8,743 users

Allows you to resend (also known as redirect) email messages.
Uses 'cardbook' if installed

Bases on the add-on 'Mail Redirect' by Onno Ekker and Pawel Krzesniak

Please see the support page on how to use and why it sometimes does not work!

Provider for CalDAV & CardDAV by John Bieling

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Rated 5 out of 5 stars 54 reviews

24,585 users

This extension is no longer needed. Thunderbird has native CalDAV and CardDAV support.

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