Puntuado con 5 de 5 estrellas

Works very nicely
If you can't install the latest version with TB8, first download it manually from it's homepage (in this case it's firetray-0.3.4.xpi). Then go to the addons tab on TB, click the tools icon, "Install from file". Look for it. It'll work fine :)

Esta valoración es de una versión anterior del complemento (0.3.3).