Browser as a remote app

Hi All

I have setup browser(Firefox) as a remote app and created a msi package. On client machine i have manually installed the msi package and it works perfectly. Here is a scenario i am working on and need your help.

When user start browsing using remote app and wants to download a file i want to give them network drive to store their download files. However that network drive should be only available with in remote app not on their local PC. So in this case all users will have their own network drive to store data when they use remote app.

Please help me in above scenario.

Regards