NSS release notes


Network Security Services (NSS) is a security patch release for NSS 3.19.2. The bug fixed in NSS have been described in the “Security Fixes” section below.

(Current users of NSS 3.19.3, NSS 3.19.4 or NSS 3.20.x are advised to update to NSS 3.21.1 release notes, NSS 3.22.2 release notes or a later release.)

Distribution Information

The HG tag is NSS_3_19_2_4_RTM. NSS requires NSPR 4.10.10 or newer.

NSS source distributions are available on ftp.mozilla.org for secure HTTPS download:

New in NSS

New Functionality

No new functionality has been introduced in this release.

Security Fixes in NSS

The following security fixes from NSS 3.21 have been backported to NSS


NSS shared libraries are backward compatible with all older NSS 3.x shared libraries. A program linked with older NSS 3.x shared libraries will work with NSS shared libraries without recompiling or relinking. Furthermore, applications that restrict the use of NSS APIs to the functions listed in NSS Public Functions will remain compatible with future versions of the NSS shared libraries.


Bugs discovered should be reported by filing a bug report with bugzilla.mozilla.org (product NSS).