Android Studio File Explorer not working on Marshmallow (Nexus devices)

After updating my Nexus 5 and then my Nexus 7 to Marshmallow, it seems I'm no longer able to access the device storage.

Previously, from the Android Studio Device Monitor's File Explorer I could access mnt/shell/emulated/0 to access the device's "external" storage.

Now, with Marshmallow, it seems mnt/shell is completely gone. Is there any way to access this same storage location?

Where is device file explorer Android Studio?

You can start Android Device Monitor from the Android Studio (green robot icon on the toolbar, to the left of the help icon). From the ADM, select the device/emulator, then select the File Explorer tab.

Why is my emulator not working Android Studio?

If the Android Emulator does not start properly, this problem is often caused by problems with HAXM. HAXM issues are often the result of conflicts with other virtualization technologies, incorrect settings, or an out-of-date HAXM driver. Try reinstalling the HAXM driver, using the steps detailed in Installing HAXM.

Have you tried /mnt/user/0/primary? It works perfectly fine on G4 and Nexus 6 running Marshmallow.