JSS 4.3.1 README

Full binary releases are no longer provided for JSS on ftp.mozilla.org

jss4.jar \342\200\223 is provided because the jss4.jar is signed with a JCE code-signing certificate. You need to build

JSS's matching JNI shared library for your platform.

https://developer.mozilla.org/En/JSS/4_3_1_ReleaseNotes

https://developer.mozilla.org/jss_build_4.3.html