Up & Coming Extensions
Limits displayed headers to 1 or 2 lines.
Put an unread mail count badge on the Thunderbird icon in the Windows taskbar.
Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).
Copy Folder Requires Restart
The missing Thunderbird "copy folder" feature! Copy folders or entire POP/IMAP accounts recursively to any location while maintaining folder structure.
Simple Locale Switcher Requires Restart
An easier management of the user interface language
Lets you associate user accounts and identities with specific folders. Great for multiple users who share TB, or for managing mailing lists.
Typical Reply Requires Restart
Provides ability to send/receive typical replies in a team.Provides ability to send/receive typical replies in a team.
Auto Compress File Requires Restart
Compressor for attachment files. All platforms are supported (Windows, Linux and Macintosh).
Sets the spell check dictionary based on the first recipient
AddressBook in Tab Requires Restart
Adds a button that can be put in toolbars which opens the addressbook in a new tab like pastismans AddressBookTab
Outlook style headers and few goodies for Thunderbird.
Custom Address Sidebar Requires Restart
Allow you to help address sidebar more useful.
Displays a small graphic visualising the context (thread) of the currently selected email.
Address Close Button Requires Restart
Adds a Address Close Button to mail compose window.
Address bulk copy （アドレス一括コピー） Requires Restart
Thunderbird は Outlook のようにアドレス全選択からの「一括コピー」ができません。
PrintingTools Requires Restart
Adds some options to print messages and addressbooks
Remove comment, display name from addresses before sending mail.
This add-on is a fork of Auto Address Cleaner.
PrintingTools NG Requires Restart
Message & Address Printing Tools (NextGen)
Adds tools to import/export messages and folders (NextGen)
NEW 78/68 Compatible version !
See Changes below
ThunderPEC Requires Restart
ThunderPEC semplifica la gestione della Posta Elettronica Certificata (PEC) e delle comunicazioni PCT e FatturaPA in Thunderbird.