I've set up folder redirection for my user profile in our domain. I noticed something weird when I logged on to the server on which the user profile data is located. All my redirected folders are read-only on this system.
For example, there's this INI file by Firefox:
\\windows.oliver.de\UserData would be a DFS namespace containing one entry,
Profiles which is pointed to a shared volume on my server
When logging on to any system in the domain, I will be able to write to the .ini file just fine. When logging on to
storage.windows.oliver.de, I won't be able to write to it. This is also indicated when I try to start FirefoxPortable: