Occasionally it occurs to me to see these entries in /var/log/messages.log: xfce4-appfinder[22276]: segfault at 21 ip 000000000040ab30 sp 00007fff6f18d4d0 error 4 in xfce4-appfinder[400000+1a000] xfce4-appfinder[17933]: segfault at 20 ip 000000000040ab30 sp 00007fff28170e40 error 4 in xfce4-appfinder[400000+1a000] xfce4-appfinder[4332]: segfault at 21 ip 000000000040ab30 sp 00007fff69370d80 error 4 in xfce4-appfinder[400000+1a000] Still I haven't noticed anything particularly wrong with the app but maybe someone else experiences similar symptoms and is able to supply more details.
Looks like a dup *** This bug has been marked as a duplicate of bug 9730 ***