Puntuado con 3 de 5 estrellas

When set “extensions.strictCompatibility” (configuration editor) to “false” then it still doesn't work properly. Settings dialog is transparent so it is hard to confirm changes:
https://bugzilla.mozilla.org/show_bug.cgi?id=1447237

Esta valoración es de una versión anterior del complemento (2.0.13).  Este usuario tiene una valoración anterior de este complemento.

This has been fixed in later versions. I don't recommend overriding the compatibility since I set the last supported version to the newest version I tested the add-on with. Override it at your own risk :).