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German Dictionary (Switzerland)
Dictionary with Swiss variants of German words for spellchecking in Mozilla products
Automatic Dictionary
Remembers the language you use with a person or group of people, and switches the spellchecker language automatically for you next time. You do not have to do it manually any more. It remembers and switches it for you.
AutoarchiveReloaded
Featured
Automatically archives old mails (Improved version of the orginal Autoarchive Add-on)
FlexConfirmMail
Confirm mail address and attachments based on flexible rules.
(This project was renamed from "Flex Confirm Mail" to "FlexConfirmMail", due to a branding reason.)
Grammalecte [fr] (for Thunderbird)
French grammar checker. Included: conjugation tool, text formatter and spelling dictionaries.
G-Hub Lite
Google Tabs for Thunderbird! G-Hub Lite supports Calendar, Contacts, Drive, Docs, Sheets, Slides, Maps, Search, & Voice. Need Google Workspace support (formerly G Suite)? Check out G-Hub Pro: https://www.schiffner.com/index.php/software/g-hub-pro
CardDAV Browser
A utility to browse vCards stored on a CardDAV server.
This version is only for Thunderbird. There is a SeaMonkey version available if needed.
Lightning Invitation Notifier | LIN
This extension is an extension to Mozilla Lightning for Thunderbird.
It shows a toast message and opens the invitations window when an invitation arrives.
Google Keep Tab
Folder Pane View Switcher
Folder view arrows; switch to "All Folders" view when hovering during drag & drop; allow user to select which views are enabled or tied to the view arrows.
TexTra
Correct Identity
Ever sent mail from the wrong email address because you forgot to select the correct identity?
Diccionario Ortográfico de Español Colombia
Este diccionario no constituye un diccionario de definiciones sino un diccionario destinado para la corrección ortográfica de Español Colombia (es-CO). Colombian spanish (es-CO) spellchecker.
WarnAttachment
WarnAttachment shows an additional dialog to confirm potentially dangerous attachments. Some attachments like executables etc. are completely blocked. This reduces the risk of malware especially for inexperienced users.
Unmangle Microsoft ATP Safelinks
Users of outlook.com and o365 who have Advanced Thread Protection enabled will have all URL's in emails changed to redirect them to an Microsoft filter before opening. This is a bad idea.
This plugin will change the URL back to the original value.
EuropeanMX Spam Reporter
Train your EuropeanMX filter by reporting unrecognized spam back to us.
Paranoia
Check if your emails arrived TLS-encrypted (and which corporations were able to read it nevertheless)
Český slovník kontroly pravopisu (bez diakritiky)
Slovník pro kontrolu pravopisu u textů bez diakritiky pro aplikace Mozilla
Copy Sent to Current
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.
To create your own collections, you must have a Mozilla Add-ons account.
