diff -Nru gtk+3.0-3.18.9/debian/changelog gtk+3.0-3.18.9/debian/changelog
--- gtk+3.0-3.18.9/debian/changelog	2017-03-23 20:45:45.000000000 +0100
+++ gtk+3.0-3.18.9/debian/changelog	2017-09-07 09:39:19.000000000 +0200
@@ -1,3 +1,11 @@
+gtk+3.0 (3.18.9-1ubuntu3.4) xenial; urgency=medium
+
+  * d/p/075-fix-fuse-mounts-in-file-chooser.patch:
+    add patch to show network shares in file selector.
+    (Closes: LP: #1714518)
+
+ -- Colin Leroy <colin@colino.net>  Thu, 07 Sep 2017 09:26:00 +0200
+
 gtk+3.0 (3.18.9-1ubuntu3.3) xenial; urgency=medium
 
   * Backport upstream patch to fix lagging and visual issues in Nautilus
diff -Nru gtk+3.0-3.18.9/debian/patches/075-fix-fuse-mounts-in-file-chooser.patch gtk+3.0-3.18.9/debian/patches/075-fix-fuse-mounts-in-file-chooser.patch
--- gtk+3.0-3.18.9/debian/patches/075-fix-fuse-mounts-in-file-chooser.patch	1970-01-01 01:00:00.000000000 +0100
+++ gtk+3.0-3.18.9/debian/patches/075-fix-fuse-mounts-in-file-chooser.patch	2017-09-07 09:38:57.000000000 +0200
@@ -0,0 +1,107 @@
+Descrption: Re-add locally accessible FUSE mounts to filechooser
+ The attached patch re-adds the network mounts that are accessible
+ locally (via FUSE) to GtkFileChooser when in local-only mode.
+ A lot of people miss this a lot while major applications
+ (Firefox, Chromium, etc) gradually switch to GTK+3.
+ .
+ gtk+3.0 (3.18.9-1ubuntu3.4) xenial; urgency=medium
+ .
+   * add patch to show network shares in file selector.
+     (075-fix-fuse-mounts-in-file-chooser.patch, LP: #1714518).
+Author: Colin Leroy <colin@colino.net>
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1714518
+
+---
+The information above should follow the Patch Tagging Guidelines, please
+checkout http://dep.debian.net/deps/dep3/ to learn about the format. Here
+are templates for supplementary fields that you might want to add:
+
+Origin: other, https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1714518
+Bug: https://bugzilla.gnome.org/show_bug.cgi?id=787128
+Bug-Ubuntu: https://launchpad.net/bugs/1714518
+Forwarded: https://bugzilla.gnome.org/show_bug.cgi?id=787128
+Last-Update: 2017-09-07
+
+--- gtk+3.0-3.18.9.orig/gtk/gtkplacessidebar.c
++++ gtk+3.0-3.18.9/gtk/gtkplacessidebar.c
+@@ -845,6 +845,31 @@ is_external_volume (GVolume *volume)
+   return is_external;
+ }
+ 
++static gboolean
++is_mount_locally_accessible (GMount *mount)
++{
++  GFile *base_file;
++
++  if (mount == NULL)
++    return FALSE;
++
++  base_file = g_mount_get_root (mount);
++
++  if (base_file != NULL)
++    {
++      char *path = g_file_get_path (base_file);
++      g_object_unref (base_file);
++
++      if (path != NULL)
++        {
++          g_free(path);
++          return TRUE;
++        }
++    }
++
++  return FALSE;
++}
++
+ static void
+ update_places (GtkPlacesSidebar *sidebar)
+ {
+@@ -853,6 +878,7 @@ update_places (GtkPlacesSidebar *sidebar
+   GList *drives;
+   GDrive *drive;
+   GList *volumes;
++  gboolean locally_accessible_network_volumes = FALSE;
+   GVolume *volume;
+   GSList *bookmarks, *sl;
+   gint index;
+@@ -1227,7 +1253,28 @@ update_places (GtkPlacesSidebar *sidebar
+   g_object_unref (new_bookmark_icon);
+ 
+   /* network */
+-  if (!sidebar->local_only)
++
++  /* network */
++
++  /* See if some network mounts are locally accessible (FUSE) */
++  if (sidebar->local_only)
++    {
++      for (l = network_mounts; l != NULL; l = l->next)
++        {
++          mount = l->data;
++
++          if (is_mount_locally_accessible(mount))
++            {
++              locally_accessible_network_volumes = TRUE;
++              break;
++            }
++        }
++    }
++
++  /* Only show network section if !local_only or some mounts are
++   * locally accessible
++   */
++  if (!sidebar->local_only || locally_accessible_network_volumes)
+     {
+       if (sidebar->show_connect_to_server)
+         {
+@@ -1271,6 +1318,10 @@ update_places (GtkPlacesSidebar *sidebar
+       for (l = network_mounts; l != NULL; l = l->next)
+         {
+           mount = l->data;
++
++          if (sidebar->local_only && !is_mount_locally_accessible(mount))
++              continue;
++
+           root = g_mount_get_default_location (mount);
+           icon = g_mount_get_symbolic_icon (mount);
+           mount_uri = g_file_get_uri (root);
diff -Nru gtk+3.0-3.18.9/debian/patches/series gtk+3.0-3.18.9/debian/patches/series
--- gtk+3.0-3.18.9/debian/patches/series	2017-03-23 20:42:42.000000000 +0100
+++ gtk+3.0-3.18.9/debian/patches/series	2017-09-07 09:34:55.000000000 +0200
@@ -28,3 +28,4 @@
 unity-headerbar-maximized-mode.patch
 gdk-x11-Check-if-we-have-access-to-GL-before-using-G.patch
 toggled-not-clicked.patch
+075-fix-fuse-mounts-in-file-chooser.patch