Recently Updated Extensions
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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.
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.
AI Mail Support
Add-on designed to enhance email management for both personal and professional use, integrating a set of adanced AI (LLM) features to optimize the email management experience.
Interstellar Alliance Social Experiment Step 3
Send the Interstellar Alliance Social Experiment Step 3 letter as an email to a predefined online list of recipients.
Markdown Here Revival
A revival of the popular Markdown-Here addon for Thunderbird.
Markdown Here Revival is a Thunderbird extension that lets you write emails in Markdown and render them as HTML before sending.
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.
Sum it up
The extension adds a button called Sum it up which takes content of a message and asks a locally running large model to summarize it in 50-100 words. It requires API of a llama.cpp or ramalama server running locally. No content leaves the local host.
Toggle Quotes (Collapse Quotes)
Adds a Toggle Quotes button, allows to collapse quotes.
Header Tools Improved
Allows to modify headers and source of messages
Extract 'Em!
Featured
Extracts attachments from messages within an account or folder, with the option to select specific attachments. By default, extracted attachments are saved to a .zip file.
Provider for Google Calendar
Provider for Google Calendar connects Thunderbird with Google Calendar for full task sync, conference details, and scheduling support. It offers deeper integration than Thunderbird’s native support using Google’s official API.
j-lawyer.org-Thunderbird-Extension
Sendet E-Mails an einen j-lawyer.org Server
Note: This extension saves messages on a j-Lawyer.org server. Sensitive data may be transmitted. Depending on the type of connection, this data may also be unencrypted.
LookOut (fix version)
LookOut decodes winmail.dat (TNEF encoded) files that may come from a misconfigured Microsoft Exchange server or Outlook user allowing access to the original attachments
Support: Thunderbird
Search Button
Toolbar button to invoke message search dialog window.
userChromeJS
Load the contents of chrome/userChrome.js from the user's profile directory every time a window is opened. Also add a toolbar button which reloads userChrome.js in the current window.
To create your own collections, you must have a Mozilla Add-ons account.