Add-ons
Recently Updated Extensions
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Birthday Calendar
Adds calendars containing the birthdays from your address books.
AI Email Assistant
Automatically generate email responses using AI through an external API integration. This add-on sends emails to an API and inserts the AI-generated response into your reply.
Dolibarr connector
ThunderAI (ChatGPT, Gemini, Ollama in your emails)
ThunderAI uses the capabilities of ChatGPT, Google Gemini, Anthropic or Ollama to enhance email management.
It enables users to analyze, write, correct, assign tags, create calendar events and tasks and optimize their emails.
PrintingTools NG
PrintingTools NG enables many layout and formatting options for printing messages with header borders, sorting, attachment lists etc. PDF output can be auto named and Page options can ease printer settings.
It is your printing toolbox.
TidySubject
SmartQuotes
Applies the correct smart quotes („ ... “ instead of " ... ") used in Lithuanian, German, Czech, and other Central European languages. One click fixes your entire text.
Logout
This extension adds "Logout" to the folders/accounts context menu.
After you "Logout" you will be asked again for passwords for this account (incoming and outgoing) without the need to restart thunderbird.
Minimize on Close
Causes Thunderbird's main window to minimize instead of closing. You can still close Thunderbird through the menu.
Veilig Verzenden Thunderbird Add-on (via Zorgmail)
Met deze add-on verstuur je met één klik e-mail via je Zorgmail-account.
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.
Date Time Formatter
Shows relative date-time in the column.
Note: you need to click "Select columns to display" and then -> "Relative Date/Time"
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.
Mail Merge
Create and Save or Send Multiple Individual and Personalized Messages from a Draft
CardBook
Featured
A new Thunderbird address book based on the CardDAV and vCard standards.
Twitter: @CardBookAddon
Thunderbird Vericode
Automatically detects verification codes in received emails and displays a notification that you can click to copy the code to clipboard.
CrossBorderScam-Canceler
This add-on (CrossBorderScam-Canceler) filters fraudulent emails by focusing on the location of the received email and analyzing the header information of the opponent's email and the links in the email body.(view in English, Japanese or German)
Thunderbird Assist
[Closed Alpha Testing] Thunderbird assist provides a summary of new messages in your inbox.
This add-on is undergoing testing and not yet available to the general public.
Lightning Calendar Tabs
Displays tabs which allows quick navigation between time periods in Lightning calendar. All views of calendar are supported. Color of tab texts can be adjusted.
To create your own collections, you must have a Mozilla Add-ons account.
