I can also confirm I have the same problem.
In FF, GIMP, Test Editor, Movie player, etc., anything using the helper does not show the file system.
Also not that in gconf the file_chooser_backend is set to gio. gio is not listed as a possible option.
If you change gio to gtk+ file system shows up correctly in the helper.
I can also confirm I have the same problem.
In FF, GIMP, Test Editor, Movie player, etc., anything using the helper does not show the file system.
Also not that in gconf the file_chooser_ backend is set to gio. gio is not listed as a possible option.
If you change gio to gtk+ file system shows up correctly in the helper.