Rated 3 out of 5 stars

Haven't tested fully yet, but noticed that when reading emails the whole headers area is now hidden so you cannot see e.g. From, To, Subject.

Errors in console:

TypeError: gFolderDisplay is Null
TypeError: cal.itip is undefined

Using TB 17.0.6 and Lightning 1.9.1 on Windows XP SP3

Great idea though!

This review is for a previous version of the add-on (0.5).