How to use libchk

[vdm.fbsd at virgilio.it]

Running libchk I find for instance

Unresolvable link(s) found in: /usr/X11R6/lib/firefox/components/libjar50.so
        libnspr4.so
        libplc4.so
        libplds4.so
        libxpcom.so

What should I do?
Delete  /usr/X11R6/lib/firefox/components/libjar50.so ?
Delete the 4 cited *.so files?

Ciao
Vittorio