Lightning Calendar

Lightning Calendar

Organize your schedule and events in a calendar fully integrated with Thunderbird or Seamonkey email.
Created by: Lightning Calendar
  • Mac
  • Windows
  • Linux
Official website

Organize your schedule and life’s important events in a calendar that’s fully integrated with your Thunderbird or Seamonkey email. 

Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Lightning brings the Sunbird (Sunbird is discontinued) calendar to the popular email client, Thunderbird and the SeaMonkey internet application suite. Since its an extension, Lightning is tightly integrated with Thunderbird or SeaMonkey, allowing it to easily perform email-related calendaring tasks..

Mac Windows Linux

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