Rated 5 out of 5 stars

Από τον/την syldub στις Απρίλ. 25, 2016 · μόνιμος σύνδεσμος

This was a very simple yet very useful addon.

Since Thunderbird 45 / Lightning 4.7 versions, the addon is no more compatible (if Show Calendar Week addon is enabled, no calendar entry can be displayed in the month view of Lightning).
Since Lightning 4.7, the week date display is integrated, so this addon is no more needed.