Rated 5 out of 5 stars

For unknown reasons, this othwerwise nice and neat plugin has stopped working in Thunderbird 45.8.

// UPDATED 25 August 2017: Thank your for your advice! Alternatively, one can update to the newest version of Thunderbird, which I did, and it seems then to work flawlessly again! Awesome! Thanks!

Full five stars rating is for all the efforts by the developer spent into this unique and highly customisable plugin! Awesome! Thanks on behalf of us all who could not live without this plugin!

This review is for a previous version of the add-on (0.9.0.2). 

New version will not work in TB 45, too much changes between versions. Too bad I did not checked it.
Now I updated version information, so TB 45 users will no longer update to Stationery version 0.9.

Sorry for the problem.

Solution for You: uninstall current version of the Stationery, then install older one from https://addons.mozilla.org/developers/addon/stationery/versions. Just download the XPI file, then drag'n'drop it on the Thunderbird window.