The "Folder Canvas Plugin" provides an extension for the standard file browser of the GNOME Desktop and thus brings associations and stable views to your personal filesystem
probably due to changes in the underlying python-nautilus library which encapsulates the GFile Object used from Nautilus in GNOME or just on very special folders, since the "NautilusVFS" debug statement let us guess
Traceback (most recent call last):
File "/home/malte/.nautilus/python-extensions/deepamehta3-nautilus.py",
line 72, in menu_activate_view
filePath = urllib.unquote(file.get_location().get_path())
AttributeError: 'main.NautilusVFSFile' object has no attribute 'get_location'