Tails is a Debian based live CD/USB with the goal of providing complete Internet anonymity for the user.
Organize your schedule and events in a calendar fully integrated with Thunderbird or Seamonkey email. .
Mozilla Add-ons is the official Mozilla Foundation website to act as a repository for add-ons for Mozilla software, including...
Security extension to Mozilla Thunderbird and SeaMonkey.
Grammalecte is a French grammar checker.It also includes:— 4 spellchecker dictionaries (to choose from),— a conjugation tool (which contains approximately 8000 verbs)
SOGo is groupware server with a focus on scalability and open standards.
Capture full web page screenshots in Firefox, Chrome, Opera or Internet Explorer: quick screenshots and annotations!.
Google Chrome, Firefox, and Thunderbird extension that lets you write email in Markdown and render it before sending.
This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way.
ExQuilla is an addon for Mozilla's...
FoxClocks is a Firefox/Thunderbird extension to display local times around the world in your status bar or any toolbar. Virtually all the worlds time zones are supported.
PhotoME is a powerful tool to show and edit the meta data of image files.
Rikaichan is a popup Japanese-English/German/French/Russian dictionary tool for Firefox, Thunderbird and Seamonkey.