Rated 3 out of 5 stars

I happened to be happy with that extension... until I updated to SeaMonkey 2.23. Since then, nothing works in my Calendar: the window opens but nothing to be read, edited or displayed in any other time format (day, week, etc). This is a major feature break and a definite burden for my daily work. The add-on is though said to be compatible with 2.23... What can be the source of the issue? I am on Windows 7 64 bits.

This review is for a previous version of the add-on (0.3). 

The source is Lightning being incompatible with 2.23. It has nothing to do with Lightbird.https://www.google.com/search?q=lightning+2.23

Edit: Wait, what?!
So you haven't updated Lightning to 2.8b1. Can you remove the review please? For questions there are:
1. Github issue tracker.
2. My e-mail.
And this isn't even my fault...