xul-ext-lightning 1:52.1.1+build1-0ubuntu1 (arm64 binary) in ubuntu artful

 Lighting is the Mozilla Calendar extension for Thunderbird, based
 on Sunbird - the Mozilla Standalone Calendar application. It is tightly
 integrated with Thunderbird, allowing it to easily perform email-related
 calendaring tasks.

Details

Package version:
1:52.1.1+build1-0ubuntu1
Source:
thunderbird 1:52.1.1+build1-0ubuntu1 source package in Ubuntu
Status:
Superseded
Component:
universe
Priority:
Optional