Puntuado con 4 de 5 estrellas

I was worried when reading about this add-on no longer working, so looked for an alternative.

This seems to do what I need and is compatible with the latest Thunderbird:
https://addons.mozilla.org/en-us/thunderbird/addon/clippings/

Esta valoración es de una versión anterior del complemento (0.9.11.5).