Hi I am having problems using my Adobe Acrobat PDF printer correctly through firefox (it works on windows explorer and chrome though but I want it to work on firefox). I receive the following error message when I go to settings - extensions "Adobe Acrobat - Create PDF could not be verified for use in Firefox and has been disabled." And there is no where a enable button or option that I can choose. I have Windows 10, the latest version of firefox and Adobe Acrobat XI Pro. I would appreciate any help in this regard since using my PDF printer is of high importance.