Up & Coming Extensions
Provides ability to override UI elements' label, tooltip text, etc.
Auto Password Registerer Requires Restart
Registers given passwords to Firefox/Thunderbird's password manager automatically.
globalChrome.css Requires Restart
Provides global user stylesheet.
Set Default Columns Requires Restart
Provides ability to set default visibility of columns in the thread pane.
Custom Address Sidebar Requires Restart
Allow you to help address sidebar more useful.
Typical Reply Requires Restart
Provides ability to send/receive typical replies in a team.Provides ability to send/receive typical replies in a team.
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
Dark mode for every email. Take care of your eyes, use dark theme for night and daily messaging.
Removes the 'Local Folders' entry from the folder pane.
(The folder itself will stay existent.)
(Based on the original work of Alex Cabal.)
Highlights selected text when composing emails. Default colour is yellow - other colours are available via Options.
(Works only during writing an e-mail, i.e. only in the compose window.)
PrintingTools Requires Restart
Adds some options to print messages and addressbooks
Unofficial DeepL translate extension for Thunderbird.
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!
Adds calendars containing the birthdays from your address books.
Message & Address Printing Tools (NextGen)
New 78 Update! 68/78 Compatible
The best Translator for Thunderbird 78!
Available also for Firefox!
Direction control and BiDi-related charset misdetection correction
Custom Thunderbird keybindings
Adds a full sender and recipient e-mail column to message list panel.