diff --git a/toolkit/system/gnome/nsGnomeVFSService.cpp b/toolkit/system/gnome/nsGnomeVFSService.cpp
index 097be0c712b6..c06b38e26566 100644
--- a/toolkit/system/gnome/nsGnomeVFSService.cpp
+++ b/toolkit/system/gnome/nsGnomeVFSService.cpp
@@ -50,6 +50,7 @@ extern "C" {
 #include <libgnomevfs/gnome-vfs-mime.h>
 #include <libgnomevfs/gnome-vfs-mime-handlers.h>
 #include <libgnomevfs/gnome-vfs-mime-info.h>
+#include <libgnomevfs/gnome-vfs-utils.h>
 #include <libgnome/gnome-url.h>
 }
 
@@ -245,6 +246,20 @@ nsGnomeVFSService::ShowURI(nsIURI *aURI)
   return NS_ERROR_FAILURE;
 }
 
+NS_IMETHODIMP
+nsGnomeVFSService::ShowURIForInput(const nsACString &aUri)
+{
+  char* spec = gnome_vfs_make_uri_from_input(PromiseFlatCString(aUri).get());
+  nsresult rv = NS_ERROR_FAILURE;
+
+  if (gnome_url_show(spec, NULL))
+    rv = NS_OK;
+
+  if (spec)
+    g_free(spec);
+  return rv;
+}
+
 NS_IMETHODIMP
 nsGnomeVFSService::SetAppStringKey(const nsACString &aID,
                                    PRInt32           aKey,
diff --git a/xpcom/io/nsLocalFileUnix.cpp b/xpcom/io/nsLocalFileUnix.cpp
index 795a2b8349e2..f1ec275e50ff 100644
--- a/xpcom/io/nsLocalFileUnix.cpp
+++ b/xpcom/io/nsLocalFileUnix.cpp
@@ -83,6 +83,10 @@
 #include "nsITimelineService.h"
 #include "nsIProgrammingLanguage.h"
 
+#ifdef MOZ_WIDGET_GTK2
+#include "nsIGnomeVFSService.h"
+#endif
+
 #include "nsNativeCharsetUtils.h"
 #include "nsTraceRefcntImpl.h"
 
@@ -1663,13 +1667,44 @@ nsLocalFile::Launch()
 NS_IMETHODIMP
 nsLocalFile::Reveal()
 {
+#ifdef MOZ_WIDGET_GTK2
+    nsCOMPtr<nsIGnomeVFSService> vfs = do_GetService(NS_GNOMEVFSSERVICE_CONTRACTID);
+    if (!vfs)
+        return NS_ERROR_FAILURE;
+
+    PRBool isDirectory;
+    if (NS_FAILED(IsDirectory(&isDirectory)))
+        return NS_ERROR_FAILURE;
+
+    if (isDirectory) {
+        return vfs->ShowURIForInput(mPath);
+    } else {
+        nsCOMPtr<nsIFile> parentDir;
+        nsCAutoString dirPath;
+        if (NS_FAILED(GetParent(getter_AddRefs(parentDir))))
+            return NS_ERROR_FAILURE;
+        if (NS_FAILED(parentDir->GetNativePath(dirPath)))
+            return NS_ERROR_FAILURE;
+
+        return vfs->ShowURIForInput(dirPath);
+    }
+#else
     return NS_ERROR_FAILURE;
+#endif
 }
 
 NS_IMETHODIMP
 nsLocalFile::Launch()
 {
+#ifdef MOZ_WIDGET_GTK2
+    nsCOMPtr<nsIGnomeVFSService> vfs = do_GetService(NS_GNOMEVFSSERVICE_CONTRACTID);
+    if (!vfs)
+        return NS_ERROR_FAILURE;
+
+    return vfs->ShowURIForInput(mPath);
+#else
     return NS_ERROR_FAILURE;
+#endif
 }
 #endif
 
diff --git a/xpcom/system/nsIGnomeVFSService.idl b/xpcom/system/nsIGnomeVFSService.idl
index 68df39781388..5f54d93a6f5d 100644
--- a/xpcom/system/nsIGnomeVFSService.idl
+++ b/xpcom/system/nsIGnomeVFSService.idl
@@ -44,7 +44,7 @@ interface nsIURI;
 /* nsIGnomeVFSMimeApp holds information about an application that is looked up
    with nsIGnomeVFSService::GetAppForMimeType. */
 
-[scriptable, uuid(99ae024f-e869-4973-958b-54768a84295a)]
+[scriptable, uuid(57b1ef41-35cd-48e9-a248-2030c8365067)]
 interface nsIGnomeVFSMimeApp : nsISupports
 {
   const long EXPECTS_URIS  = 0;
@@ -143,6 +143,7 @@ interface nsIGnomeVFSService : nsISupports
 
   /* Open the given URI in the default application */
   void               showURI(in nsIURI uri);
+  [noscript] void    showURIForInput(in ACString uri);
 };
 
 %{C++