Contacts

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gContactSync Requires Restart

Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.

Rated 4 out of 5 stars (228)
3,166 weekly downloads

CardBook Requires Restart Featured

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

Twitter: @CardBookAddon
Forum: https://cardbook.6660.eu/

Rated 4 out of 5 stars (130)
2,677 weekly downloads

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 and SeaMonkey

Rated 4 out of 5 stars (15)
1,587 weekly downloads

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 (156)
1,264 weekly downloads

ExQuilla for Microsoft Exchange Requires Restart

Thunderbird email accounts connecting to Microsoft Exchange Web Services. A 60 day trial of a paid add-on.

Update for Thunderbird 52: See https://exquilla.zendesk.com/hc/en-us/articles/115001708463. Summary: estimated on 2017-04-23 or try beta.

Rated 3 out of 5 stars (101)
1,254 weekly downloads

TbSync (Provider for Exchange ActiveSync) Requires Restart

Synchronize Exchange ActiveSync accounts to Thunderbird Addressbook and Calendar, supports Office 365, Outlook.com, Freenet, Strato, Hotmail, Kopano and other EAS compatible servers.

Rated 5 out of 5 stars (8)
870 weekly downloads

ReminderFox Requires Restart

ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.

Rated 4 out of 5 stars (520)
850 weekly downloads

Addressbooks Synchronizer Requires Restart

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

Rated 4 out of 5 stars (58)
501 weekly downloads

Google Contacts Requires Restart

Access to Google contacts and synchronize them with Thunderbird address books.

Rated 3 out of 5 stars (301)
344 weekly downloads

Contact Tabs Requires Restart

Contact Tabs enhances Thunderbird to give you quick access to all your contacts directly from Thunderbird's main window: Use the powerful search field to find your contacts and open them in a new tab for viewing and editing.

Rated 4 out of 5 stars (53)
325 weekly downloads

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 (86)
180 weekly downloads

AddressBook in Tab Requires Restart

Adds a button that can be put in toolbars which opens the addressbook in a new tab like pastismans AddressBookTab

Rated 4 out of 5 stars (3)
171 weekly downloads

CategoryManager 2 Requires Restart

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

Rated 5 out of 5 stars (8)
143 weekly downloads

Contact Photos Requires Restart

Displays contact photos in the message header.

Rated 4 out of 5 stars (25)
130 weekly downloads

Signature /Auto Paste /Prefill Fourms Requires Restart

Makes everyday entries to forms & forums simpler!
Add a sig. with just a Rclick of the mouse and select 'Add Sig.' from the context menu.
(Please, note: What you see in the pic is only an example. ThoseRMine Sorry, you have to make your own tabs. )

Rated 4 out of 5 stars (25)
120 weekly downloads

CardDAV Browser Requires Restart

A utility to browse vCards stored on a CardDAV server.

Rated 3 out of 5 stars (5)
113 weekly downloads

Telify Requires Restart

Converts telephone numbers into clickable links for use with CTI applications, SIP clients, Skype, Netmeeting, snom phones, the AGFEO TK-Suite Client and SerVonic IXI-PCS.

Rated 3 out of 5 stars (57)
106 weekly downloads

tzpush Requires Restart

Z-Sync to Thunderbird Addressbook
Will sync Thunderbird address book to Zentyal, Zarafa, Horde and outlook.com/hotmail.

Rated 4 out of 5 stars (16)
101 weekly downloads

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 (107)
81 weekly downloads

Auto Address Cleaner Requires Restart

Removes comment, display name automatically from addresses before sending mail.

Rated 5 out of 5 stars (48)
80 weekly downloads