Up & Coming Extensions
Message & Address Printing Tools (NextGen)
New 78 Update! 68/78 Compatible
List addons in Windows' "Add or Remove Programs".
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
Simple Locale Switcher Requires Restart
An easier management of the user interface language
Allows you to resend (also known as redirect) email messages.
Uses 'cardbook' if installed
Bases on the add-on 'Mail Redirect' by Onno Ekker and Pawel Krzesniak
Please see the help page on how to use and why it sometimes does not work!
Confirm mail address and attachments based on flexible rules.
Typical Reply Requires Restart
Provides ability to send/receive typical replies in a team.Provides ability to send/receive typical replies in a team.
Menu Wizard Requires Restart
Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey
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.
Confirm E-mail address before sending mail
Check the message contents and addresses before you send the message...
PrintingTools Requires Restart
Adds some options to print messages and addressbooks
Address Close Button Requires Restart
Adds a Address Close Button to mail compose window.
Automatically do Archive/Copy/Delete/Move actions based on user defined rules
The best Translator for Thunderbird 78!
Available also for Firefox!
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。
Join-NG Requires Restart
Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".
Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers
Quote Colors Requires Restart
Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.
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.