CALDAV - Search/Subscribe Requires Restart
Add CalDAV search & subscribe feature to Lightning
Card Viewer Extended Requires Restart
Adds a button in address book cards to fetch and display the certificate of a contact.
CardBook Requires Restart Featured
CardDAV Browser Requires Restart
A utility to browse vCards stored on a CardDAV server.
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).
Check Recipients Requires Restart
Checks the existence of email addresses of all recipients in Compose message window from local address books and LDAP directories.
conceptERP Kontaktimport Requires Restart
Importiert Kontakte aus conceptERP in das Adressbuch.
Contact DnD Requires Restart
Enables one to assign a photo to a contact by dragging and dropping it from the local filesystem.
Contact Photos Requires Restart
Displays contact photos in the message header.
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.
Contacts Sidebar Requires Restart
Displays the address books in a sidebar in Thunderbirds 3-pane-window and can be toggled with the F4 key or a toolbar button.
Visit my Contacts Sidebar site for recent versions and news.
CRM-Integration ITSP-PBX Mobile Exchange Requires Restart
Integration of FreePBX-Swiss and OMP24-CRM
Crmthdb Lite ZohoCRM Thunderbird Extension Requires Restart
Connect Thunderbird and share mails with ZohoCRM. The Lite version lets you display contacts of Zoho CRM inside Thunderbird. The full version on http://sites.google.com/site/crmthdb lets you archive your mails and add contacts into Zoho CRM.
Custom Address Sidebar Requires Restart
Allow you to help address sidebar more useful.
Customizable LDAP AddressBook Auto Complete Requires Restart
Provides (restores) customizability of auto complete items for LDAP addressbook items, and more features.
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.
Directory Contact Tabs Requires Restart
Displays additional information about contacts from LDAP directory servers. The new panels are provided by one or several customized Directory Contact Tabs (Data) add-ons.
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.
DM Sync Requires Restart
This plugin allows you to synchronize addressbooks and contacts stored on the DM mail server
Duplicate Contact Manager Requires Restart
Facilitates handling of duplicates in your address book(s). Allow to search and remove similar contacts.