@Contact Mention

This add-on mimics the mentions behavior on Outlook when mentioning a contact with the '@' sign. The contact selected is added as a link in the email body as well as to the recipent list of the email.

Select Inbox on Startup

Automatically select the Inbox folder at startup.

AI Anywhere for ChatGPT

Press "Alt + i" or use context menu to quickly access:
- ChatGPT (OpenAI)
- GitHub Copilot (Microsoft)
- Claude (Anthropic)
- Lumo (Proton)
- Gemini (Google)
- Grok (X)
- Mistral
- Perplexity
- DeepSeek (深度求索)

onedrivewebapp

Adds browser action icon to toolbar to open OneDribe. See https://thunderbird-essentials.thomas-bandl.de/wordpress/2020/10/04/microsoft-onedrive-button/

Move Folder (context-menu)

Adds the "Move to" menu entry to the folders panel context menu, allowing to move a Local folder (and its content) to another.
This feature is similar to the native one within message(s) context menu ("Move To"), but it applies to the folder tree.

PowerFolder

Power Folder add-ons tool is used for large attachment in Mozilla Thunderbird extension.

New Bing Anywhere

New Bing isn't just for Edge anymore. Anywhere you want

Filter email folders

Filter mail folder tree by keyword.
For those with many folders.
This add-on was made based on `Hide Email Folders 3.0.0 persiancity@gmail.com` and `Search Button 2.3.0 SearchButton@pharqcon.com`.

Copy Timestamp

Copy the timestamp and/or email addresses of the sender, recipient, etc. to the clipboard in various formats.

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.

tbhints

Link hints for messages

This addon adds a keybinding (ctrl+shift+E) for displaying hints next to each link in an email message. Enter the hint text into the box at the bottom of the message to open that link in the system's default web browser.

Grammar, Proofreading & Spell Checker

Check the grammar and spelling directly inside Thunderbird using Wordeep technology

Paste code

Thunderbird addon creating a context menu option that pastes code beautifully in HTML messages

Mark Read on Tab Open

Mark messages as read when you open them in tabs.

Redo Button

Adds a Redo button to Thunderbird compose toolbar

ChatGPT Addon

Integrates ChatGPT with Thunderbird for quick and easy access to its conversational AI capabilities.

iCanban - Kanban with ICAL

Undo Button

Adds an Undo button to Thunderbird compose toolbar

Discord - Quick Access

Quick Access to Discord in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

AutoReplace

This AddOn offers a function of autocorrection / auto text replacement. You can save a shortcut and a replacement and it will replaced automaticly if you type your new eMail text.