NSS 3.67 release notes


Network Security Services (NSS) 3.67 was released on 10 June 2021.

Distribution Information

The HG tag is NSS_3_67_RTM. NSS 3.67 requires NSPR 4.30 or newer.

NSS 3.67 source distributions are available on ftp.mozilla.org for secure HTTPS download:

Other releases are available Releases.

Bugs fixed in NSS 3.67

  • Bug 1683710 - Add a means to disable ALPN.

  • Bug 1715720 - Fix nssckbi version number in NSS 3.67 (was supposed to be incremented in 3.66).

  • Bug 1714719 - Set NSS_USE_64 on riscv64 target when using GYP/Ninja.

  • Bug 1566124 - Fix counter increase in ppc-gcm-wrap.c

  • Bug 1566124 - Fix AES_GCM mode on ppc64le for messages of length more than 255-byte.


NSS 3.67 shared libraries are backwards-compatible with all older NSS 3.x shared libraries. A program linked with older NSS 3.x shared libraries will work with NSS 3.67 shared libraries without recompiling or relinking. Furthermore, applications that restrict their 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 on bugzilla.mozilla.org (product NSS).


This version of NSS contains a number of contributions for “unsupported platforms”. We would like to thank the authors and the reviewers for their contributions to NSS.

Discussions about moving the documentation are still ongoing. (See discussion in the 3.62 release notes.)