Hello, for a while now, before opening a pdf document, I reach a dark page where I have to click to activate the Adobe Acrobat plugin. I have Adobe PDF Plug-In For Firefox and Netscape 9.5.5 and I know that it is outdated, however, upgrading to 10 or 11 is not an option due to Acrobat 10 and 11 not being compatible with our enterprise systems. I get black screens whenever I try to view pdf in Firefox and I have to click on them to view pdf. Whether I am running in XP, Windows 7 or 8, it doesn't much matter. How do I disable the warning about acrobat and how do I get the plugin to stay activated?

Any suggestion as how to disable the warnings and vulnerability screens or to update the plugin without installing Adobe Reader? Thank you