Add-ons

Signal Spam by Signal Spam, VERIFROM

Add simple functions to report spams or phishing to Signal Spam by one click.
The add-on will also alert you if you open a fraudulent e-mail (phishing).

Collector's Note De mieux en mieux intégré et fonctionnel à Thunderbird 57.x

Awesome Auto Archive by wang opera

Automatically do Archive/Copy/Delete/Move actions based on user defined rules

Collector's Note Toujours bien fonctionnel avec Th 45.

Account Colors by DW-dev

Associates user-defined colors with POP3/IMAP accounts and identities. Applies these colors to accounts, identities, folders, message list, message headers and compose headers. Users will always know which accounts/identities they are working with.

Tag Toolbar / Tag Popup by H.Ogi

Add toolbar for toggling tags.

Expression Search / GMailUI by wang opera

Powerful message searching through expressions. Type "from:fred to:tom" to see all messages from Fred to Tom in the current view. Support 'regular expressions' and 'click to search'.

TorBirdy by Sukhbir Singh

This extension configures Thunderbird to make connections over the Tor anonymity network.

Mailbox Alert by Tjebbe

Mailbox Alert allows you to specify, for each seperate mail folder, a message, sound and/or a system command that will be executed when new mail is found there. ...

Remove Duplicate Messages by Thorsten W. Schmidt

If you have duplicate messages (e.g. from merging folders or downloading messages several times) you can use this tool to find and remove them from the selected folder and its subfolder by rightclicking on a folder and choosing "Remove duplicates..."

Collector's Note Plus exactement son fork : "Remove Duplicate Messages (Alternate)" par Eyal Rozenberg. Trouve et envoie à la corbeille (ou supprime, au choix) tous les messages en double en quelques instants sur une machine dual core de 2013 :D

Duplicate Contact Manager by Marian Steinbach, Copelnug

Facilitates handling of duplicates in your address book(s). Allow to search and remove similar contacts.

Collector's Note Ne fonctionne plus avec Thunderbird v52.x / Linux.

EMail Address Crawler by CySlider

Automatically fill your address books or send mass mails with e-mail addresses extracted from all your e-mails.

Nostalgy by Alain Frisch

Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.

Collector's Note « If you love to work with the keyboard then this addon is perfect for you. It will save you a lot of time moving emails to the correct folders (instead of drag and drop). »

ThunderBrowse by GS! Networks

Did your friend send you a cool link? Want to read the rest of that interesting article? Don't want to open up your web browser just to view it? You don't have to! Just view it in Thunderbird with ThunderBrowse!

Auto Address Cleaner by markopee

Removes comment, display name automatically from addresses before sending mail.

Search as list by psoebr

Search results appear as list (as per the "Open email as list" button).
- return to facet view with shift+close [x]
- auto open list view when few results found
- column config./sort/toggle [IMG3&4]
- apply columns to search as list menu [IMG5]

BiDi Mail UI by The BiDi UI Team, Eyal Rozenberg

Direction control and BiDi-related charset misdetection correction