ps awux | grep thunderbird
root    96892  0.0  0.1   920  476  p4  S+    9:34PM   0:00.01 /bin/sh /usr/ports/mail/thunderbird/work/pkg-install thunderbird-0.9
root    96910  0.0  0.2  2508 1052  p4  S     9:34PM   0:00.01 /usr/X11R6/bin/xinit /usr/X11R6/lib/thunderbird/lib/thunderbird-0.9/
root    96913  0.0  0.2  1448  852  p1  S+    9:34PM   0:00.00 grep thunderbird