Inverse Lightning enhancer plugin enhances the functionalities of the Lightning calendar plugin for Thunderbird.

Thunderbird GroupDAV plugin is a Mozilla Thunderbird extension that connects an address book to a GroupDAV server.

Allow Empty Subject is a little extension that disables the warning dialog when you send a message without a subject.

mozPod is a Thunderbird extension that allows you to sync your address book with an iPod.

Contact-Up-Thunderbird is an extension to sync Thunderbird with contact-up.

Allow HTML temp - Pinstripe Theme is a Thunderbird extension that allows HTML temporary graphics related to Pinstripe theme.

accountex is a powerful extension to export and import the account settings from/to Mozilla Thunderbird.

about:accessibilityenabled provides an about page, to show whether accessibility API support is enabled.

Character Identifier is an extension that adds a context menu item for selected text that provides more information.

Lightning Multiweek View is an extension which adds a multiweek view to Lightning.

BiDi Mail UI provides directionality control features for Mozilla mail applications.

TB Header Tools Extension allows you to modify the header detail of messages.

Tb AutoSave Extension enables you to autosave messages from TB upon receipt.

Fix Tb Titlebar Extension enables you to modify the Titlebar of TB's main window.

Contacts Add BCC button is an extension which adds a Add to BCC button to contacts panel on the compose window.

Move Search Items allows you to move the message search items to the toolbar.

Identity Reminder checks whether the correct identity via was entered through a small reminder window.

QuickMenuMC provides a QuickMenu for MoveTo and CopyTo.

Custom Geometry is an extension which resizes and positions the window according to your settings.

Celebrity Search allows you to search movie starts - actors, actresses and directors, musical performers and so on.

World Weather is an extension which displays local weather information from around the world.

LookOut project consists in a plugin which allows will allow Thunderbird to interface with Microsoft's mail tools.

RSS Linkify Subject enables linkify Subject header with Content-Base URL when viewing RSS item to easily open it in browser.

PasteIP provides easy pasting of your IP address or User-Agent in a textbox.

Stopwatch provides a simple stopwatch you can use to time stuff.