remove icon at the right of modules bar

Edit Subject

hi,

so now, we have a ghostery movable button, that's great, but how to do to have only one icon/button on the left of the modules bar???

if i take the new button in firefox personalization window to put on the left of the bar, i've got two buttons : mine (i've just take) an the other on the right of the bar ad i can't remove it, grrr!!!

thanks for your answer

ps : i'm ok for beta testing