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Clacks Overhead
In tribute to the late Sir Terry Pratchett, many users are adding the message "GNU Terry Pratchett" into the email header "X-Clacks-Overhead". Clacks Overhead shows users when this appears in their emails and displays the message included.
N'ko
Nko spell-checker / Vérificateur orthographique N'ko sur la base du Corpus de référence N'ko http://cormand.huma-num.fr/cormani/ Un vérificateur est aussi disponible comme Extension de la suite Libre Office
SPAMBEE
Report any unsollicited email (SPAM, Phishing, ...) to SPAMBEE.
Get an alert if you open an email containing a URL already known as fraudulent.
All reports are anonymized, no registration is required.
Upper Sorbian spell checker
Uppersorbian dictionary for spellchecking in Mozilla products based on soblex version 2.10.22.
Disable DragAndDrop (New)
Disable drag and drop on the folder tree in order to prevent unintended folder movement.
Spellchecker Rumauntsch Puter
Spellchecker Rumantsch Vallader
New Tab
Dictionnaire occitan gascon
Corrector ortografic en occitan gascon entà Thunderbird.
Correcteur orthographique en occitan gascon pour Thunderbird.
Snakes by Bluemods
Classic Snakes game at your fingertips.
Snakes by Bluemods is a free-to-play single-player classics arcade game designed and developed by Justin Gates at Bluemods.com. The game allows the players to maneuver a snake made up of tiny squares.
OpenAttachmentByExtension
Dino Game
InsertSignature
Insert signature helps you to insert usually used text by your customization.
Pywalfox
Dynamic theming of Thunderbird using your Pywal colors.
https://github.com/Frewacom/pywalfox
Transfer Immunity
Transfer Immunity is a fast and secure add-on and SaaS service for sharing and transferring files. This high-fidelity, SaaS-based platform allows users to send large files to different destinations as attachments with emails.
Diola-Fogny spell checker
Requires Restart
Diola-Fogny spell checker that recognizes about 19000 of the most common words.
To create your own collections, you must have a Mozilla Add-ons account.
