Do you Love Thunderbird? but also need to manage your schedule? Do it from within our popular email client.
Lightning brings the Sunbird calendar to the popular email client, Mozilla Thunderbird. Since it's an extension, Lightning is tightly integrated with Thunderbird, allowing it to easily perform email-related calendaring tasks.
You may prefer Lightning if...
you send or receive meeting invitations via email
you already use Mozilla Thunderbird for email
you customize your applications with add-ons (such as extensions or themes)
