For me, this was one of the most useful add-ons in Thunderbird, and I used it a lot. Suddenly, and recently, it has completely ceased to work i.e. I can select any of the options, but nothing happens and nothing is written to my dump folders.
A great pity, and no obvious reason for it.
Sorry for the issues. Can you open an issue in the repository:
Please include OS and Thunderbird/Extension versions.
also include any debug output