you should make exceptions, like what sites to allow to visit. there are trusted xxx sites too.

it works, although you could put a password or user to access your add-on and that this is not deactivated by others, or make block the page (about: addons) with password. thank you.
--
funciona, aunque podrias poner una contraseña o usuario para acceder a tu complemento y que otros no lo desactiven o bloquear la página (about: addons) con contraseña .