Add-ons
Message and News Reading
Sort by:
Dark Plain Text
Use dark mode styling when reading plain text emails with a dark theme.
OpenFolder
This add-on makes it easy to open folders on a file server.
In order to use the add-on, you need to install two things: the add-on and the linked app.
You can download the linked app from the following website.
https://openfolder.net/
EML-Editor
Addons to edit EML files and save your emails as EML file with their attachements.
Available on Github with MIT Licence :
https://github.com/pgpgeek/thunderbird-addon-eml-editor
Next Unread Thread (Mark All Read)
Adds a Thread button, marks current thread or conversation as read and moves to the next unread message
ThunderAI
ThunderAI uses the capabilities of ChatGPT to enhance email management.
It enables users to analyze, write, correct, and optimize their emails.
There is no need for an API key and is possibile to use this extension even with a free account!
PDF Viewer
Requires Restart
Opening and viewing PDF attachment file inside a Thunderbird tab
InfoCodex DocSummarizer
Intelligent document and mail summarization tool based on the artificial intelligence of InfoCodex. Create better summaries chapter-by-chapter and tag them in your preferred language.
AutoRssDeleter
Requires Restart
Deletes rss message if the website link was clicked while Ctrl holding
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.
Safelink removal
Replace URLs which have been rewritten by Office 365 Advanced Threat Protection with the original URL.
KundenMeister CRM Mail Export
An mail export add-on from KundenMeister to export the mails from user to KundenMeister portal after authentication.
ObsidianClipper
ObsidianClipper is a Thunderbird extension to clip emails to the Obsidian notetaking application. Save an email to Obsidian seamlessly with one click. Customize the format of new note titles and note layout.
RemindMe
Moves email into Inbox/RemindMe folder, and moves it back into Inbox after chosen time.
Autocopy 78+
update-test
DO NOT install, this is for testing the update mechanism.
If you are interested in the functionality, use quicker quicksearch instead
MessagePreview
MessagePreview adds a column to the Thunderbird message list to display the message preview in a tooltip on column row icon mouse hover or a short preview in the column row itself.
ThunderSuite - Customize your Quick Access Sidebar
This extension allows user editing of the spaces sidebar.
Create custom spaces from the extension options, to turn the new toolbar introduced with Supernova into your personal quick access toolbox.
Empty Folder
Adds a keyboard action (Ctrl+Del) and a folder context menu to delete all messages in a folder. Has a confirmation dialog to prevent accidental deletions
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.
Attachment Viewer: view in a tab, slideshow
View attachments in TB
Images, office files, mp3, mp4
Use Dropbox viewer for 175 file types (in v3)
* Docx, xlsx, pptx, pdf preview
* Slideshow of images
* Zoom/drag to position
* Rotate/flip image
* Download dialog with thumbnail of image
To create your own collections, you must have a Mozilla Add-ons account.
