Invite others to grab times on your calendar. Choose a date. Make appointments as easy as it gets.

• Thunderbird Appointment @ GitHub.

Firefox Decrypt is a tool to extract passwords from profiles of Mozilla (Fire/Water)fox™, Thunderbird®, SeaMonkey® and derivates.

It can be used to recover passwords from a profile protected by a Master Password as long as the latter is known. If a profile is not protected by a Master Password, passwords are displayed without prompt.

The extensible, open source mail client.

Lightweight CalDAV+CardDAV server

This is a very experimental, not complete, not fully functionnal, probably heavily bugged project. In fact, for the moment, this is closer to a proof of concept than an actual “usable” extension. But it works as long as you don’t stress it too much :).