Puntuado con 1 de 5 estrellas

It used to work until TB68, now after upgrading to TB78 no longer works.

Strange thing, it works with a freshly installed TB78.

Please fix the bugs, this add-on is so useful, it would surely deserve the 5*.

Thank you

Esta valoración es de una versión anterior del complemento (78.0.1). 

Puntuado con 5 de 5 estrellas

The behaviour I see is quite different, the plug-in does not work but the message I get tells me I have Javascript disabled.
I have already enabled cookies from anyone, it was no good

Update: setting javascript.enabled to true - as suggested by Philipp - did work. Thank you. Could be that the last TB update reverted the boolean ? (BTW javascript.enabled is safe, it does not enable javascript in email)

Esta valoración es de una versión anterior del complemento (3.1). 

Please go to the advanced config editor and check if javascript.enabled is set to true. You can find it in the Options > Advanced > General > Config Editor.