diff --git a/xbps-src/common/mapping_shlib_binpkg.txt b/xbps-src/common/mapping_shlib_binpkg.txt
index 5f6868c429..f8f0366bb5 100644
--- a/xbps-src/common/mapping_shlib_binpkg.txt
+++ b/xbps-src/common/mapping_shlib_binpkg.txt
@@ -334,6 +334,9 @@ libfreebl3.so			nss			nss-devel
 libnssdbm3.so			nss			nss-devel
 libnssckbi.so			nss			nss-devel
 libnss3.so			nss			nss-devel
+libxpcom.so			firefox
+libmozalloc.so			firefox
+libxul.so			firefox
 libxul.so			xulrunner		xulrunner-devel
 libmozjs.so			xulrunner		xulrunner-devel
 libdbusservice.so		xulrunner		xulrunner-devel