Both packages install and repack with no errors on Slitaz-4.0 live cd.
Check the md5sum:
md5sum nss-3.14.3.tazpkg
d1f8a8ab5f6f9149af73e8e3e989d3d6 nss-3.14.3.tazpkg
md5sum nspr-4.8.9.tazpkg
910578ef7ae0d594a79aa7b090e1468f nspr-4.8.9.tazpkg
I downloaded/verified the pkgs on mediafire md5sum matches the originals I uploaded.
Extract each tazpkg:
tazpkg extract <tazpkg.full.name>
nss-3.14.3: md5sum
f843289a45864bac7dcc8e00ae753b9a /usr/bin/certutil
463ae2a1b30e9780bb3921e9d30b575c /usr/bin/modutil
763a016ffbee838c223337a3e43303c4 /usr/bin/signver
5171048d95d9f3984d936f1d8e9b007d /usr/bin/crlutil
af0fcf18de3524fa137889cbfa65007d /usr/bin/signtool
28353d3f0f5df47f27857d12acdc1105 /usr/bin/pk12util
3a13c60b1b144fd63bc7c988ef98a635 /usr/bin/ssltap
534885a93d03a8c4fc4224ee19c53743 /usr/bin/cmsutil
9c4a731ab4a225dfceab319b014cfa15 /usr/lib/libnssdbm3.so
b8cea9b1f6fea214a93ab8472fa61043 /usr/lib/libssl3.so
016b57e774413bb41f09b47f77727a02 /usr/lib/libsmime3.so
02048243fdb5438f25fbb7d20438a206 /usr/lib/libnss3.so
dd5dc8822920445737ba973e38f375d2 /usr/lib/libnssutil3.so
5a4ade293e278e32384c235d66f42ae1 /usr/lib/libnssckbi.so
0f947239d55aa2c400fcfe1646c3bf1a /usr/lib/libfreebl3.so
52879786882185a406b0d8d208bdac19 /usr/lib/libsoftokn3.so
nspr-4.8.9: md5sum
015fb4d04ae966211044614402b6ae7e /usr/bin/compile-et.pl
a90c29bd92b4da046f8bc99e44b93de4 /usr/bin/prerr.properties
2d00aed53cc2daab578598ad14aad460 /usr/lib/libplds4.so
f819007c39bd27d4d1becd711e105413 /usr/lib/libnspr4.so
ae4ebb23d5b9bc9102f2faf4cc3c2d92 /usr/lib/libplc4.so