Up & Coming Extensions
Join-NG Requires Restart
Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".
Addressbooks Synchronizer Requires Restart
Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers
FolderFlags Requires Restart
Allows users to edit the flags Thunderbird sets on folders.
Reinstates the extensions.checkCompatibility preference without respect to the current application version.
SeaTab-X-2 Requires Restart
Adds Firefox-style tab closers into SeaMonkey.
FireTray Requires Restart
A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...
LookOut Requires Restart
LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Folderpane Tools Requires Restart
Allows for customization of the folder pane. Accounts can be rearranged and the startup folder can be chosen.
P7MON Requires Restart
Abilita la gestione alternativa degli allegati P7M
MinimizeToTray revived Requires Restart
Minimizes windows into the system tray.
Simple Locale Switcher Requires Restart
An easier management of the user interface language