Mozilla Lightning Project 68.9.0 / 73.0 Beta 1

This small extension adds a stylish Sunbird calendar to the very popular email client, Thunderbird. You can easily make the switch from reading emails to the calendar by clicking a button. The Lightning Project also helps you schedule future events.

Here’s a quick look under the hood:

• It works on both 32 and 64-bit systems and it runs on all major Windows versions
• Although Mozilla plans to integrate Lightning into Thunderbird 3.0, it can still be downloaded as a separate extension if you use an older version
• Easily manage tasks and events straight into your favorite email client
• Choose from displaying all tasks and events, tasks only, events only or hide the selection pane completely
• Search and filter upcoming events by start date, name, location, duration, end date, etc
• Manage invitations sent and received for events that are about to happen soon
• It takes into account different timezones
• Support for other calendars (iCal, Google Calendar, etc)

Install the Lightning Project if you want to add a calendar to Thunderbird.