I have the very latest versions of FF and Adobe Acrobat Pro XI and FF Adobe Acorbat Plugin. When I open a PDF (regardless of size) and view it in FF then click the download button then select the option to open in Adobe Acrobat I get the error stating "There was an error opening this document. The file is damaged and could not be repaired. " If I download the file locally THEN open it usually works fine. This happens to me on both Mac and PC. Any suggestions? Thanks in advance