Check Recipients Requires Restart
Checks the existence of email addresses of all recipients in Compose message window from local address books and LDAP directories.
Card Viewer Extended Requires Restart
Adds a button in address book cards to fetch and display the certificate of a contact.
Send Format LDAP Requires Restart
Gets supported email formats (text/HTML) by the recipients from LDAP directories.
Add Birthdays To Calendar Requires Restart
Birthdays from addressbook-contacts will be added as events to Lightning...
Been2Long Requires Restart
Been2Long will remind you to get in touch with your contacts.
xSidebar for Thunderbird Requires Restart
Firefox sidebars for Thunderbird.
EMail Address Crawler Requires Restart
Automatically fill your address books or send mass mails with e-mail addresses extracted from all your e-mails.
THUNDER!Box Requires Restart
Thunder!Box allows transferring contacts from your Thunderbird-Addressbook to the phonebook of a connected AVM FRITZ!Box FON router and back. You may also use your addressbook to initiate calls.
AddressBook In Mode ToolBar Requires Restart
Add adressbook button to "mode toolbar" (requires lightning extention)
privateID Requires Restart
This extension displays a warning if you send a message from your private emailID to an address/ mailing list which is not found in your Personal Address Book...
LDAP Swapping Requires Restart
This extension allow you to simply switch on / off the LDAP autocompletion.
SMSalias MozClient Requires Restart
SMSalias is a Firefox/Thunferbird extension that enables you to send SMS messages directly from Browser/email application...
AddTo Miru Directory Server Requires Restart
The AddTo extension allows Thunderbird users to add contact cards direct to a shared miru directory server. Once added contact details are available via LDAP for auto-complete and address book search...
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.
NotTo Requires Restart
Are you using mailing lists in Thunderbird ?
Do you forward a lot of mail ?
If so, this extension may be useful for you.
mozPod Requires Restart
Sync your address book with an iPod
addressContext Requires Restart
An extension to add addressbook-related options to the context...
SyncMab Requires Restart
This extensions can import and export mozilla address books at startup and exit of Thunderbird. You can first save a mab at a specific location e.g. on a network or the internet (Version 2.0) and then let it be updated every time TB starts up or...
SJCall Requires Restart
SJCall is a beta version of a VoIP extension enabling you to place telephone calls directly from the Mozilla applications using SJphone, the world-leading Internet softphone...
BirdFon Requires Restart
BirdFon, a lightweight and elegant phone plugin, makes Thunderbird a speaking friend in your online life. With BirdFon you can call your friends in a way similar to the SkypeOut service. The major BirdFon advantage is that it allows you to make...