I used Paste Email until Paste Email Plus arrived. Firefox 4.0 won't run plus, so I reverted to Paste Email. It seemed to install fine and the Add-ons manager says it's been installed. Where is the past email icon? It used to be just to the left of the address bar, and screen shots suggest it's supposed to be there. But it's not. What am I doing wrong?
Win 7 64-bit