Eine automatisch erzeugte Liste meiner installierten Add-ons
British English Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey by David Bartlett.
To enable, right-click in a multi-line text box, select "Languages", then "English / United Kingdom".
German dictionary (new Orthography) for spellchecking in Mozilla products, extended with Austrian words
Clears preferences left by extensions after uninstallation
Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers
ThunderCal simply gives you a toolbar button that you can use to run Google Calendar inside Thunderbird. Inspired by the ThunderWave add-on.
Google and Zimbra contact sync for Thunderbird. (TB 24 and above NOT supported)
Adds Tools menu item to check Add-ons for updates. Includes toolbar icon.
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.
Allows several tweaks to the Thunderbird/Lightning calendar user interface including new selection styles and repeating event icons. Mimics the colors and styles found in MS Outlook.
Displays icon for user agent of received mails.
Adds some options to print messages and addressbooks
The sipgate extension enables a practical overview for your account, direct call list notifcations, a speed access to several parts of sipgate's website, initiaiting click2dial calls, sending messages and faxes directly from your browser.
Automatically fill your address books or send mass mails with e-mail addresses extracted from all your e-mails.
Display birthdays from the Thunderbird addressbooks as events in Lightning.