Comment 59 for bug 932177

It's 2014, this bug is already 2 years old, and hasn't been fixed yet,
at least on Xubuntu 12.04. Fixing it seems trivial.

Possible solutions:

1. If the package gnome-keyring is not needed on Xubuntu (or other
   affected Ubuntu flavors), it should be considered to be removed from
   it as a default package so that other applications don't try to
   connect to it.

2. If the package gnome-keyring is required, it should be fixed so that
   it runs properly on all the Ubuntu flavors that use it. The problem
   seems to be in /etc/xdg/autostart/gnome-keyring-pkcs11.desktop which
   is only enabled for Gnome and Unity.
   2.1. Fix the line OnlyShowIn=GNOME;Unity;
        2.1.1. by appending XFCE;KDE;LXDE; and any other DE that may
               need or use pkcs11.
        2.1.2. by deleting or commenting out that line so that all DEs
               may use it (if anything, add a NotShowIn=... blacklist
               for DEs in which this may cause problems).
   2.2. Make XFCE include an identical .desktop file with
        OnlyShowIn=XFCE; in it, so that the fix for XFCE is independent
        from other DEs.
   2.3. Make XFCE load all Gnome services at startup by default (which
        may also include some unwanted stuff and thus may not be a good
        idea).

3. If the package gnome-keyring is required due to dependencies, but
   the service pkcs11 is not needed for it and other applications to
   run properly, the warning message it displays should be removed.
   3.1. Making gnome-keyring not display that warning.
   3.2. Making gnome-keyring inform applications that the service
        pkcs11 is unavailable.
   3.3. Making all applications that use gnome-keyring check whether
        the service pkcs11 is available before requesting it (which
        would imply fixing them one by one, which may be a bad idea).