Web application access user's file system

Question

I am creating a web application for my client. The application will be installed on a dedicated server within corporate network. He wants to see the list of his local files

Answer 1

Mozilla. File System API Restrictions

Because the file system is sandboxed, a web app cannot access another app's files. You also cannot read or write files to an arbitrary folder (for example, My Pictures and My Documents) on the user's hard drive.