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Grammar, Proofreading & Spell Checker
Check the grammar and spelling directly inside Thunderbird using Wordeep technology
X-Original-To Column
This addon adds a new column called X-Original-To in the message list which shows the original recipient address of the message (the contents of the X-Original-To header). This can be useful for systems with catch-all email addresses.
Jitsi Meet event generator
Trello - Quick Access
Quick Access to Trello in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
CustomCSS
Allow the user to configure custom CSS that will be added to messages when edited
(new, reply and forward). The custom CSS will be added to a newly created <style>
element in the email's head.
Joplin Export
Export your emails from Thunderbird to Joplin. To use the add-on, a running Joplin application is required (https://joplinapp.org).
Please note that this is not an official product of the Joplin team, but rather developed by a private person.
reply-all-auto-cc
When reply to all is used, move original To: recipients to Cc:
Also forces "Cc:" to be displayed on all new messages.
GitHub Repo: https://github.com/cyb3rmonk/reply-all-auto-cc
Read Aloud: A Text to Speech Voice Reader
Read aloud the selected email messages using text to speech (TTS). Read Aloud is intended for users who prefer to listen to content instead of reading, and those with dyslexia or other learning disabilities.
Render Markdown Messages
This extension renders markdown-formatted messages as rich text. It preserves the fonts and formatting of plain text messages but adds support for markdown features like lists, code blocks, etc.
Discord - Quick Access
Quick Access to Discord in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Proton Mail - Quick Access
Quick Access to Proton Mail in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
onedrivewebapp
Adds browser action icon to toolbar to open OneDribe. See https://thunderbird-essentials.thomas-bandl.de/wordpress/2020/10/04/microsoft-onedrive-button/
Tamizha Spellchecker
Requires Restart
Tamil spell checker derived from the OpenOffice spellchecker created by Tamizha Team
Uyghur Spelling Dictionary (ئۇيغۇرچە ئىملا لۇغەت)
Uyghurche Imla Lughet ئۇيغۇرچە ئىملا لۇغەت
Enables spell checking in any text field for Uyghur Arabic Alphabet.
Metamorfik
The Altium Forums are the best way to participate in discussions, share tips, ask/answer questions and locate resources.
Search for
Context menu on message allowing quick filtering based on email/sender or domain
SpamTester
SpamTester allows you to test the spam score of your email using popular anti-spam software (SpamAssassin, Rspamd...). This is useful to know if your email will fall into the recipient's spam (or even get your mail server blocked).
Message Header Toolbar Customize
You can change icon display and button order. You can also hide unnecessary buttons.
Scriptable Notifications
Allows you to define an external script (bash, batch, python, ...) which is called so you can manage mail notifications / alerts the way you want.
Snap/Flatpak versions of Thunderbird not supported.
To create your own collections, you must have a Mozilla Add-ons account.
