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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 (486)
64,649 users
Updated July 20, 2016

CALDAV - Search/Subscribe Requires Restart

Add CalDAV search & subscribe feature to Lightning

Rated 3 out of 5 stars (11)
2,499 users
Updated July 12, 2016

Expand mailing list recipients Requires Restart

Adds a toolbar button to expand address book lists to its recipients - useful to stripe out some of them when sending mail...

Rated 4 out of 5 stars (16)
1,402 users
Updated June 14, 2016

Auto Address Cleaner Requires Restart

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

Rated 4 out of 5 stars (51)
17,605 users
Updated April 26, 2016

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 4 out of 5 stars (59)
10,920 users
Updated February 28, 2016

Dialectic Dialer Requires Restart

Dial phone numbers with Dialectic (Dialectic is for OS X only). In addition, when a page loads, phone numbers can optionally be highlighted and hyperlinked to dial Dialectic.

Rated 1 out of 5 stars (1)
34 users
Updated January 23, 2016

LDAP - View Groups Members Requires Restart

Allow the user to view the members of the LDAP directories in the addressbook

Rated 3 out of 5 stars (4)
523 users
Updated November 22, 2015

ThunderSync Requires Restart

Allows to synchronise Thunderbird's addressbook with external directories/files. Every contact is exported/compared with an external file. Right now, only vCard version 2.1 is supported as export file format.

Rated 3 out of 5 stars (19)
11,060 users
Updated November 10, 2015

Contact DnD Requires Restart

Enables one to assign a photo to a contact by dragging and dropping it from the local filesystem.

Not yet rated
20 users
Updated October 14, 2015

Additional Chat Protocols for Thunderbird Requires Restart

Add support for chat protocols implemented in libpurple.

Rated 3 out of 5 stars (35)
1,355 users
Updated October 13, 2015

OBM Connector Requires Restart

OBM Lightning Calendar and addressbooks connector

Not yet rated
1,337 users
Updated September 25, 2015

Display Contact Photo Requires Restart

Displays the contact photo/image/picture of the sender/recipient while reading or composing a message. Supports photos in a local folder and the 'Face' header for embedded photos. The add-on adds new generic photos and many styling possibilities.

Rated 4 out of 5 stars (105)
6,040 users
Updated September 17, 2015

MultiBirthdaysReminder Requires Restart

This addon is now integrated into the new address book CardBook and thus it is no longer maintained

Rated 5 out of 5 stars (6)
448 users
Updated September 9, 2015

ThunderBirthDay Requires Restart

Display birthdays from the Thunderbird addressbooks as events in Lightning.

Rated 4 out of 5 stars (85)
17,493 users
Updated September 1, 2015

Kardia CRM Add-on for Thunderbird Requires Restart

(beta) Integrates with the Kardia CRM system, to provide information about the people in the Kardia CRM database directly via Thunderbird.

NOTE: This add-on requires a Kardia CRM server (see description for more information).

Not yet rated
1 user
Updated August 22, 2015

Customizable LDAP AddressBook Auto Complete Requires Restart

Provides (restores) customizability of auto complete items for LDAP addressbook items, and more features.

Rated 5 out of 5 stars (1)
458 users
Updated August 22, 2015

Security Settings from Address Book Requires Restart

Sets message security (sign/encrypt) when sending or saving messages based on recipients' address book entry's field "Custom1".

Rated 5 out of 5 stars (2)
421 users
Updated July 7, 2015

Flexible Identity Requires Restart

Selects an identity based on the recipients list when sending an email

Rated 4 out of 5 stars (26)
1,587 users
Updated June 16, 2015

SyncKolab Requires Restart

SyncKolab can synchronize your calendar, address book and tasks against an IMAP server in Kolab formats version 1 (vCard/iCal) or version 2 (XML) or turn your Thunderbird/Lightning into a native Kolab Client (http://kolab.org).

Rated 3 out of 5 stars (77)
5,818 users
Updated December 7, 2014

EmailPicky 4 Requires Restart

Grab email addresses from emails from any selected Email Folder and add them to your contacts. (Email Crawler / Email ID Grabber / Bounced email collector) - Thunderbird Plugin
Note: It doesn't create duplicates, but shows as 'xxx messages added'.

Rated 3 out of 5 stars (13)
5,062 users
Updated July 16, 2014