Up & Coming Extensions
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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.
tbkeys-lite
Custom Thunderbird keybindings
This add-on is a follow on to Keyconfig which is no longer supported.
It is aimed at power users. Please look at the GitHub site before leaving a one star review about documentation or usability.
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Context menu on message allowing quick filtering based on email/sender or domain
Stationery Requires Restart
Extension to mimic Outlook Express Stationery.
Allow you to use HTML files as templates for mail. Also allow custom template in replies or forwarded mail!
Markdown Here Revival
A revival of the popular Markdown-Here addon for Thunderbird 78 and beyond.
Markdown Here Revival is a Thunderbird extension that lets you write emails in Markdown and render them as HTML before sending.
ThreadVis
Displays a small graphic visualising the context (thread) of the currently selected email.
SmartTemplates Featured
SmartTemplates offers an easy and powerful way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every mail identity, Stationery files can now be imported and used directly.
FileLink Provider for OwnCloud and NextCloud
Uploads your large attachments to your OwnCloud or NextCloud server and instead inserts a public link into your email.
FileLink for Plik
Plik no longer offers uploads without an account. So the add-in currently only works for self-hosted instances of the software. Currently I cannot promise a date for a fix. Sorry.
Manually sort folders
This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.
Account Colors Requires Restart
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.
FileLink provider for WebDAV Featured
Uploads your large attachments to your WebDAV account instead of sending them by email.
Grammar and Spell Checker — LanguageTool
Check your emails for spelling and grammar issues
Provider for CalDAV & CardDAV
This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync". Including iCloud, ownCloud, Nextcloud, Radicale and many more.
FireTray Requires Restart
A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...
TORPEDO - TOoltip-poweRed Phishing Email DetectiOn
TORPEDO ist ein Tool zum Erkennen von betrügerischen Links (Phishing). Bewegen Sie die Maus über einen Link in einer Email. TORPEDO zeigt Ihnen die tatsächliche Webadresse in einem Tooltip an und hilft Ihnen, diese zu untersuchen.
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