Thunderbird 3 at work
89 Add-ons in this Collection
Adds some options to print messages and addressbooks
Associates user-defined colors with accounts and identities. Applies these colors to accounts, identities, folders, message list, message headers and compose headers. Users will always know which accounts/identities they are working with.
Adds extension options dialogs to the Tools or Titlebar menu and includes toolbar icon.
Check the message contents and addresses before you send the message...
It adds a button that can be put in toolbars and that open the addressbook in a new tab
URL Link is a small Firefox and Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.
Toolbar-Buttons for Lightning; advances the feature to get rid of the tabbar.
Powerful message searching through expressions. Type "from:fred to:tom" to see all messages from Fred to Tom in the current view. Support 'regular expressions' and 'click to search'.
Retrieve your Passwords the quick way! Never retype or display your secure passwords on screen anymore - put the password where you need it - the login form or the clipboard.
Now also includes single sign on change!
Adds many new mail filter actions - launch a file, suppress notification, remove star or tag, mark replied or unread, copy as "read", append text to subject.
Adds submenus for flipping or rotating to the image context menu.
Quickly highlight some text in Thunderbird message composing windows.