[Thunderbird Add-On] Central user interface to manage cloud accounts and to synchronize their contact, task and calendar information with Thunderbird
- Updated
Jul 28, 2025 - JavaScript
[Thunderbird Add-On] Central user interface to manage cloud accounts and to synchronize their contact, task and calendar information with Thunderbird
Sieve Script Editor
An extension for Thunderbird that allows you to view threads as "real" conversations, including your own emails. This extension also adds a bunch of useful UI features in the conversation view.
DKIM Verifier Extension for Mozilla Thunderbird
Extensions / Add-Ons for Mozilla Firefox and Mozilla Thunderbird
Thunderbird privacy, security and anti-fingerprinting: a comprehensive user.js template for configuration and hardening
ThunderAI is a Thunderbird Addon that uses the capabilities of ChatGPT, Gemini, Claude or Ollama to enhance email management.
Thunderbird add-on that replaces built-in notifications with the OS native notifications
nostalgy addon updated for Thunderbird 68 and now Thunderbird 78 - 115. Original code by Alain Frisch.
Remove Duplicate Messages
[Archived] Edit Thunderbird emails in an external text editor
✉️ 📤 "Nextcloud for Filelink" is a Thunderbird extension which makes it easy to send large attachments with Thunderbird by uploading them first to a Nextcloud server and by then inserting the link into the body of your email.
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.
Outlook style headers and few goodies for Thunderbird
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.
Vietnamese input method extension (IME) for Firefox, Thunderbird, SeaMonkey, Komodo, etc. — bộ gõ tiếng Việt dành cho Firefox, Thunderbird, SeaMonkey, Komodo, …
ThunderSec is a security plugin for Mozilla Thunderbird that creates several pieces of additional security functionality, including DNSBL, RBL, SURBL, DKIM and SPF.
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