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List Unsubscribe
Adds a button to unsubscribe from newsletters and other bulk email that has the List-Unsubscribe header.
Messenger - Quick Access
Quick Access to Facebook Messenger in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
NTFNTF
NTFNTF: Notify on This Folder Not That Folder. Choose to enable or disable notifications on a per-folder basis.
Thunderbird Email 2 CSV Exporter
This add-on has been thoroughly tested on all platforms up to Thunderbird version 115. It allows you to target specific file folders and tag them for export, generating a CSV-formatted export file. Great for a large number of emails and Mailchimp.
OnMail - Quick Access
Quick Access to OnMail in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Date Time Formatter
Shows relative date-time in the column.
Note: you need to click "Select columns to display" and then -> "Relative Date/Time"
Deselector
Junk Mail ByeBye
This extension identifies and protects you from spam emails, phishing emails, and other unwanted messages. It is primarily targeted towards filtering out spam in Japanese.
Mailfence - Quick Access
Quick Access to Mailfence in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Microsoft Teams - Quick Access
Quick Access to Microsoft Teams in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Apply ROT13
Apply ROT13 to selected text in messages.
Select any text in the message body, right-click on the selection to open the context menu and select "Apply ROT13". Alternatively, you can use a configurable keyboard shortcut (Ctrl-Shift-D by default).
Google Mail Tab
Button to open Google Mail, supports multiple accounts. Useful if you need to configure mail settings, filters or forwarding in Gmail.
Khmer Spellchecker
Uzbek spell checker
Dictionnaire orthographique kikongo
Correcteur orthographique en kituba de RDC, kikongo ya leta
New UNEC
New UNEC is a browser extension that transforms the UNEC student panel into a modern and user-friendly interface. It dynamically replaces the existing webpage’s HTML, CSS, and JS with an improved design, featuring automatic dark mode, language.
Simpler English Dictionary
Haitian Creole spell checker
Korektè Òtograf Kreyòl (KÒK) se yon korektè òtograf otomatik gratis nan lang Kreyòl Ayisyen ki develope avèk èd LOGIPAM ak Kevin Scannell
Korektè Òtograf Kreyòl (KÒK) is a free Haitian Creole Spell Checker developed by LOGIPAM and Kevin Scannell
FileLink Provider for Dropbox
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.
Hide Email Folders
Hide Email Folders from the Folder pane (Left pane).
Note: This addon only works for Unified pane/folder mode.
Note #2: Please note that this addon only hide email folders and NOT local folders!
Special thanks to John Bieling, C-E and Alex Cabal.
To create your own collections, you must have a Mozilla Add-ons account.
