observatory-cli is the command-line version of Mozilla's Observatory, »a project designed to help developers, system administrators, and security professionals configure their sites safely and securely.«

This post's authors provide insight into Mozilla's fuzzing-pipeline, including links to the open-source tools in use.

s. also https://wiki.mozilla.org/Security/Server_Side_TLS

The Mozilla IoT team’s mission is to create a Web of Things implementation which embodies those values and helps drive IoT standards for security, privacy and interoperability. Mozilla WebThings is an open platform for monitoring and controlling devices over the web.

Common Voice is Mozilla's initiative to help teach machines how real people speak.