Rated 4 out of 5 stars

With this add-on installed, Lightning misses its title in the tab.

The issue is described in more detail in this bug report:

https://bugzilla.mozilla.org/show_bug.cgi?id=1137451

This review is for a previous version of the add-on (2.0.12). 

Rated 5 out of 5 stars

Integrates very nicely into the default view and feels like a native feature of Thunderbird. Overall, clean, lean and elegant. Thank you for maintaining this extension!

This review is for a previous version of the add-on (2.0.8).