We use a plugin Adobe Acrobat NPAPI Plug-in Version 10.1.2 on a Mac to get the pdf to open in Acrobat and the pdf display within the browser window, as within our Online artwork Approval system we use the Acrobat Annotations server to annotate pdfs and publish to the server

But we can no longer get this plugin to work! Is there a later version ? or is there another way of forcing the pdf to open in a Acrobat Reader application (not the Mac viewer) within the browser and not open another window to display the pdf in Acrobat?