$ lsof -c firefox | awk '/\.so/ { print $9 }' | sort -u
/lib/libnss_mdns4_minimal.so.2
/lib/libpopt.so.0.0.0
/lib/x86_64-linux-gnu/ld-2.13.so
/lib/x86_64-linux-gnu/libc-2.13.so
/lib/x86_64-linux-gnu/libdbus-1.so.3.5.7
/lib/x86_64-linux-gnu/libdl-2.13.so
/lib/x86_64-linux-gnu/libexpat.so.1.5.2
/lib/x86_64-linux-gnu/libgcc_s.so.1
/lib/x86_64-linux-gnu/libgcrypt.so.11.7.0
/lib/x86_64-linux-gnu/libglib-2.0.so.0.3000.0
/lib/x86_64-linux-gnu/libgpg-error.so.0.8.0
/lib/x86_64-linux-gnu/libm-2.13.so
/lib/x86_64-linux-gnu/libnsl-2.13.so
/lib/x86_64-linux-gnu/libnss_compat-2.13.so
/lib/x86_64-linux-gnu/libnss_dns-2.13.so
/lib/x86_64-linux-gnu/libnss_files-2.13.so
/lib/x86_64-linux-gnu/libnss_nis-2.13.so
/lib/x86_64-linux-gnu/libpcre.so.3.12.1
/lib/x86_64-linux-gnu/libpng12.so.0.46.0
/lib/x86_64-linux-gnu/libpthread-2.13.so
/lib/x86_64-linux-gnu/libresolv-2.13.so
/lib/x86_64-linux-gnu/librt-2.13.so
/lib/x86_64-linux-gnu/libselinux.so.1
/lib/x86_64-linux-gnu/libudev.so.0.12.0
/lib/x86_64-linux-gnu/libutil-2.13.so
/lib/x86_64-linux-gnu/libuuid.so.1.3.0
/lib/x86_64-linux-gnu/libz.so.1.2.3.4
/usr/lib/firefox-addons/extensions/globalmenu@ubuntu.com/components/libglobalmenu.so
/usr/lib/firefox/components/libbrowsercomps.so
/usr/lib/firefox/components/libdbusservice.so
/usr/lib/firefox/components/libmozgnome.so
/usr/lib/firefox/libfreebl3.so
/usr/lib/firefox/libmozalloc.so
/usr/lib/firefox/libmozsqlite3.so
/usr/lib/firefox/libnspr4.so
/usr/lib/firefox/libnss3.so
/usr/lib/firefox/libnssckbi.so
/usr/lib/firefox/libnssdbm3.so
/usr/lib/firefox/libnssutil3.so
/usr/lib/firefox/libplc4.so
/usr/lib/firefox/libplds4.so
/usr/lib/firefox/libsmime3.so
/usr/lib/firefox/libsoftokn3.so
/usr/lib/firefox/libssl3.so
/usr/lib/firefox/libxpcom.so
/usr/lib/firefox/libxul.so
/usr/lib/gio/modules/libdconfsettings.so
/usr/lib/gio/modules/libgvfsdbus.so
/usr/lib/gtk-2.0/2.10.0/engines/libmurrine.so
/usr/lib/gtk-2.0/2.10.0/menuproxies/libappmenu.so
/usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so
/usr/lib/gvfs/libgvfscommon.so
/usr/lib/libart_lgpl_2.so.2.3.21
/usr/lib/libbonobo-2.so.0.0.0
/usr/lib/libbonobo-activation.so.4.0.0
/usr/lib/libbonoboui-2.so.0.0.0
/usr/lib/libcanberra-gtk.so.0.1.8
/usr/lib/libcanberra.so.0.2.5
/usr/lib/libcroco-0.6.so.3.0.1
/usr/lib/libdbusmenu-glib.so.4.0.5
/usr/lib/libdbusmenu-gtk.so.4.0.5
/usr/lib/libgconf-2.so.4.1.5
/usr/lib/libgnome-2.so.0.3200.1
/usr/lib/libgnomecanvas-2.so.0.3000.3
/usr/lib/libgnome-keyring.so.0.1.1
/usr/lib/libgnomeui-2.so.0.2400.5
/usr/lib/libgnomevfs-2.so.0.2400.4
/usr/lib/libibus-1.0.so.0.0.0
/usr/lib/libltdl.so.7.3.0
/usr/lib/libORBit-2.so.0.1.0
/usr/lib/libORBitCosNaming-2.so.0.1.0
/usr/lib/liboverlay-scrollbar-0.2.so.0.0.11
/usr/lib/libstartup-notification-1.so.0.0.0
/usr/lib/libxcb-util.so.0.0.0
/usr/lib/libxml2.so.2.7.8
/usr/lib/x86_64-linux-gnu/gconv/UTF-16.so
/usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-png.so
/usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-svg.so
/usr/lib/x86_64-linux-gnu/gtk-2.0/2.10.0/immodules/im-ibus.so
/usr/lib/x86_64-linux-gnu/libasound.so.2.0.0
/usr/lib/x86_64-linux-gnu/libatk-1.0.so.0.20209.1
/usr/lib/x86_64-linux-gnu/libavahi-client.so.3.2.9
/usr/lib/x86_64-linux-gnu/libavahi-common.so.3.5.3
/usr/lib/x86_64-linux-gnu/libavahi-glib.so.1.0.2
/usr/lib/x86_64-linux-gnu/libcairo.so.2.11000.2
/usr/lib/x86_64-linux-gnu/libdbus-glib-1.so.2.2.0
/usr/lib/x86_64-linux-gnu/libffi.so.6.0.0
/usr/lib/x86_64-linux-gnu/libfontconfig.so.1.4.4
/usr/lib/x86_64-linux-gnu/libfreetype.so.6.6.2
/usr/lib/x86_64-linux-gnu/libgailutil.so.18.0.1
/usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0.2400.0
/usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0.2400.6
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0.3000.0
/usr/lib/x86_64-linux-gnu/libgmodule-2.0.so.0.3000.0
/usr/lib/x86_64-linux-gnu/libgnutls.so.26.16.14
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0.3000.0
/usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0.3000.0
/usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0.2400.6
/usr/lib/x86_64-linux-gnu/libICE.so.6.3.0
/usr/lib/x86_64-linux-gnu/libnotify.so.4.0.0
/usr/lib/x86_64-linux-gnu/libogg.so.0.7.1
/usr/lib/x86_64-linux-gnu/libpango-1.0.so.0.2903.0
/usr/lib/x86_64-linux-gnu/libpangocairo-1.0.so.0.2903.0
/usr/lib/x86_64-linux-gnu/libpangoft2-1.0.so.0.2903.0
/usr/lib/x86_64-linux-gnu/libpixman-1.so.0.22.2
/usr/lib/x86_64-linux-gnu/librsvg-2.so.2.34.1
/usr/lib/x86_64-linux-gnu/libSM.so.6.0.1
/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.16
/usr/lib/x86_64-linux-gnu/libtasn1.so.3.1.11
/usr/lib/x86_64-linux-gnu/libtdb.so.1.2.9
/usr/lib/x86_64-linux-gnu/libvorbisfile.so.3.3.4
/usr/lib/x86_64-linux-gnu/libvorbis.so.0.4.5
/usr/lib/x86_64-linux-gnu/libX11.so.6.3.0
/usr/lib/x86_64-linux-gnu/libX11-xcb.so.1.0.0
/usr/lib/x86_64-linux-gnu/libXau.so.6.0.0
/usr/lib/x86_64-linux-gnu/libxcb-render.so.0.0.0
/usr/lib/x86_64-linux-gnu/libxcb-shm.so.0.0.0
/usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0
/usr/lib/x86_64-linux-gnu/libXcomposite.so.1.0.0
/usr/lib/x86_64-linux-gnu/libXcursor.so.1.0.2
/usr/lib/x86_64-linux-gnu/libXdamage.so.1.1.0
/usr/lib/x86_64-linux-gnu/libXdmcp.so.6.0.0
/usr/lib/x86_64-linux-gnu/libXext.so.6.4.0
/usr/lib/x86_64-linux-gnu/libXfixes.so.3.1.0
/usr/lib/x86_64-linux-gnu/libXinerama.so.1.0.0
/usr/lib/x86_64-linux-gnu/libXi.so.6.1.0
/usr/lib/x86_64-linux-gnu/libXrandr.so.2.2.0
/usr/lib/x86_64-linux-gnu/libXrender.so.1.3.0
/usr/lib/x86_64-linux-gnu/libXss.so.1.0.0
/usr/lib/x86_64-linux-gnu/libXt.so.6.0.0
/usr/lib/x86_64-linux-gnu/pango/1.6.0/modules/pango-basic-fc.so