The Mozilla Lightning Project fully integrates the Sunbird calendar with Thunderbird and the SeaMonkey Internet application suite.

Since it's an extension, Mozilla Lightning can be utilized with Thunderbird and SeaMonkey, this fact allows it to easily perform email-related calendaring tasks between the products.

The most important feature of Mozilla Lightning is that you will be able to manage your daily events or plan new tasks directly within Thunderbird or SeaMonkey.

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