SortRecipients Requires Restart

SortRecipients lets you alphabetically sort the recipients lists (To/Cc) when composing a message, simply by clicking the Sort button, which it adds to the Compose window toolbar.

Mailing List Manager Requires Restart

Clean up your Inbox and Organize your Mailing Lists

Bulk List Filter Requires Restart

The Bulk List filter addon provides a set of preconfigured search folders for popular services such as Facebook, eBay, Amazon and more.

Gnome Integration Requires Restart

Provides better integration with Gnome using standard notifications and other features

WebChanges Requires Restart

Monitor website changes for all websites not providing feeds.

ZenbuShiitake Requires Restart

Telephone Message Requires Restart

Quickly and easy way to inform someone of a missed call. This addon allows you to email the person your passing the message onto, collecting their email address from your address book, with a collection of ready made messages.

Automatic Dictionary

Remembers the language you use with a person or group of people, and switches the spellchecker language automatically for you next time. You do not have to do it manually any more. It remembers and switches it for you.

Babylon Dictionary Word Search Requires Restart

Find the definition for a selected word in a web page or an email.
Right click over the selected word, choose the option "Search in Babylon" and that's it! You will have a new window with the definition of the selected word.

Nepali Patro Requires Restart

Calendar for Nepalese People

Thunderbird Are Go Requires Restart

This plays audio to boost emotion when Mozilla Thunderbird start up.
Mozilla Thunderbird Are Go!

CorrectLink Requires Restart

Do you have a trouble that Thunderbird have made a link with non-ASCII characters after URL in text/plain message ?
CorrectLink solve this issue.

QuickFileMail Requires Restart

QuickFileMail is a Thunderbird Add-On that helps to quickly file messages in the right folder.

Custom Alarms Requires Restart

Customize the reminder dropdown in Sunbird and Lightning's event and task dialog.

To configure this extension, open the addon preferences from the addons manager.

LightningButton Requires Restart

Toolbar-Buttons for Lightning; advances the feature to get rid of the tabbar.

LocalFolders

Add as many local folders as you want to.
New folders can reside on mapped or network locations.

New 102 version released !

Add Birthdays To Calendar Requires Restart

Birthdays from addressbook-contacts will be added as events to Lightning...

Quicker Filer Requires Restart

Quicker Filer helps you file your messages into folders using keyboard shortcuts and quick search method. Navigate through folders by typing the start of a folder name and the Quicker Filer dialog will show you all folders that matches as you type.

Asterisk Click2Dial Requires Restart

This is an easy to use extention, select any number on a web page, right click to open the context menu which you can use to call this number.
Want it in your language, help us : https://translations.launchpad.net/click2dial-firefox-extension

xultray for gecko 1.9.1 Requires Restart

Show xul application (gecko 1.9.1 based) in system tray. supports Firefox 3.5, Thunderbird 3.0.