When I view any website and then go and link to an embedded pdf file viewed through the website, I find that the pdf file command bar (save, print, scroll, zoom) is inoperable when I try to activate the individual icons with my cursor. I've tried all the add-ins/plug-ins from the Mozilla site with no success. When I return to using the Explorer browser the command bar works fine. I have no problems with downloaded pdf files when the command bar always works perfectly.