Recently Updated Extensions
True "Send Later" functionality to schedule the time for sending an email.
The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.
See new mail at a glance after automatic filtering - supports quickFilters addon!
Dark mode for every email. Take care of your eyes, use dark theme for night and daily messaging.
Just Report It (https://justreport.it) is an email plugin which makes it easy to report spam emails back to the domain registrar. This method ensures that spam domains are effectively being blocked at the registrar level and not just locally.
Adds two columns to the list of mails. One shows an indicator wether a mail is incoming or outgoing, the other shows the sender or the recipient of the mail respectively...
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!
Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers
Allows to place a copy of sent messages (aka FCC) into the currently active folder or any other folder you choose, when you create the message. Usually the copies are placed into the 'Sent' folder. For replies, you may also move the original message.
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.)
Add emojis to your e-mails.
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
Display Mail User Agent T Featured
Displays the mail program with which the selected mail was written
*This addon is compatible with Thunderbird after Web Extesnsions support. Since development and operation check are done on Daily, it may not work on normal Thunderbird.
TbSync is a central user interface to manage cloud accounts and synchronize their contact, task and calendar information with Thunderbird.
Organize email into folders quickly and easily.
Adds a Toggle HTML button
Limits displayed headers to 1 or 2 lines.
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.
BrowseInTab lets you open and browse any link in a Thunderbird content tab. Links are followed within the tab and back/forward navigation is supported. Also with enhanced Zoom customization and a url bar.
Read an e-mail, hit Autofile button and it is filed / moved to the right mail folder based on the sender's address. No drag/drop needed.
Autofile can discover folders to store each author mail. Will save you lots of time like defunct filemail.