I recently installed Fedora 20 32bit Xfce (I came from Fedora 20 Gnome). Everything is fine, except that no thumbnails are shown in thunar or in ristretto. Tumbler is installed and the thumbnail option in thunar is active. Since all desktop configurations still are the default ones, I assume I didn't messed up with them. After some research on the Internet, I didn't find any solution. The directory ~/.thumbnails exists and the thumbnails are generated, but none of them appears in Thunar or in ristretto. Regards. Luciano.