There are 4 repositories under thunderbird-addon topic.
Thunderbird add-on turning your emails into beautifully visualized email account stats
External Editor Revived is a Thunderbird MailExtension which allows editing emails in programs such as Vim, Neovim, Emacs, etc.
Remove Duplicate Messages
Quick Folder Move Add-on for Thunderbird
Monterail Full Dark, a Thunderbird theme inspired by the mockup of Monterail
Fork of LookOut (fix version)
This provider add-on adds Google synchronization capabilities to TbSync. Only contacts and contact groups are currently managed, using Google's People API.
Thunderbird add-on to display spam scores according to mail headers. Supports spam/ham score headers of Rspamd and SpamAssassin. The add-on adds a column with the overall spam score to the mail list view and shows details of any matched spam/ham rule.
This addon adds awesome statistics to your beloved Thunderbird!
Thunderbird add-on to show full sender and recipient address column in message list
Thunderbird extension for the Todo.txt application.
Easily export your Thunderbird emails to Joplin.
A thunderbird mailextension for explicitely choosing the correct sender identity before opening an email editor.
This is a Thunderbird addon that adds some magic to the folder list columns. Check the addon website for more info...
Thunderbird extension for autoarchiving mails
Tips, Tricks & Examples for Thunderbird E-mail New Add-On Development
A Thunderbird add-on to color-code the compose window based on the selected identity.
Allow you to use an external script to manage Thunderbird mails notifications
Thunderbird Add-On to add additional local folders to accounts
Get the hidden appointment from an email from outlook/teams as a .ics-file
Easier management of the user interface language in Mozilla applications
Thunderbird plugin to show E2E-encryption status for ProtonMail Bridge emails.
Thunderbird addon for enhancing mail processing filters, including scripting support.
Mirror of mailredirect extension
📤️ Export your extensions!
Thunderbird Add-on Plugin - open Google Calendar inside a Thunderbird tab
A MailExtension for Thunderbird (68+) that uploads large attachments to your Cloud and generates a link you can send by mail instead of the file.