Sender Name Requires Restart

DragToCompose Requires Restart

Enables dragging a file to Thunderbird for composing a new message without opening composer window first.

ltnPlus Requires Restart

Version 0.9:
Support printing of tasks for Lightning 0.8/0.9.

Up to version 0.2:
Enhancements to Lightning that are known from Sunbird: Unifinder (for events and todos) and moving MiniMonth to Tabpanel

TB Properties Requires Restart

Wanna know more about a link or image you see in Thunderbird? Do you really really really wish there was a properties box with the info about objects? Well..

TB Custom Toolbar Requires Restart

Adds a button to make new toolbars in Thunderbird

XUL/Migemo Requires Restart

This provides dictionary-assisted search (Migemo search) and regular expression powered search for "find in this page" and other features.

Send Format LDAP Requires Restart

Gets supported email formats (text/HTML) by the recipients from LDAP directories.

Card Viewer Extended Requires Restart

Adds a button in address book cards to fetch and display the certificate of a contact.

Simple HT Jumper Requires Restart

A temporal simple jumper of HTML and Plan TEXT view mode on showing messages and replying messages for Thunderbird without changing the default setting.

Custom Buttons² Requires Restart

The Custom Buttons² Firefox extension provides the code base support necessary to create, maintain, import, and export custom toolbar buttons. The buttons can perform just about any task, with a large number of buttons already available on the exte...

IranZilla Requires Restart

IranZilla provides the following services in Thunderbird:

* Adds a column in the mail view for displaying Iranian dates for each email.
* Supports both English and Persian Iranian month names.
* Adds a context menu item for copying the Iranian dates...

SmtpSwitch Requires Restart

SmtpSwitch allows to choose the smtp server when clicking on the 'Send' button.

MarkSubfolders Requires Restart

This Add-on provide ability to mark as read subfolders.

Tag Toolbar / Tag Popup

Add toolbar for toggling tags.

Book Text Mark Requires Restart

Use context menu or Bookmarks menu to set mark lines within long pages. Navigate to marked pages and to the marked lines.

Highlight interesting sections of text, navigate between highlighted sections.

FolderCheck Requires Restart

Allows you to easily tell Thunderbird to check multiple folders for messages

NotTo Requires Restart

Are you using mailing lists in Thunderbird ?
Do you forward a lot of mail ?

If so, this extension may be useful for you.

BorderColors Requires Restart

Color-codes compose windows depending the active e-mail identity, to avoid sending messages from the wrong account.

FireTray Requires Restart

A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...

Restart Thunderbird Requires Restart

Restart Thunderbird with ease.