I use thunar a lot on systems with different languages and I'm totally confused that the root file system does not display as a slash "/" in the side pane, devices section. In German it reads "Dateisystem", in English it's "File System".
Is there a way to change the string "File System" ("Dateisystem") to "/" ?
Maybe it's worth considering a change in the standard XFCE configuration here, because "File System" is somehow misleading. Other devices are also file systems, but displayed with different names. "Root File System" would be a better description string, but I find a single slash much easier to identify.
XFCE 4.10 on Debian/Linux (Jessy) in German (my translations may be inaccurate)