Puntuado con 4 de 5 estrellas

Why I can't see PREVIEW, during opening/download full-size image in floating window? Image just appear when finish 100%? Why you disable that?

Esta valoración es de una versión anterior del complemento (2.3.2.1-signed). 

Which version?

Hello, which version of Thumbnail Zoom Plus and Firefox are you running? I had to make some changes to work around problems introduced by the newer versions of Firefox but it wasn't supposed to disable that. Please can reply to firefox.add.on@davidadler.name . Thanks.