The Mozilla Toolkit is a set of APIs, built on top of Gecko, which provide advanced services to XUL applications. These services include Profile Management, Chrome Registration, Browsing History, Extension and Theme Management, Application Update Service, and Safe Mode. (More info)
We have several Telemetry JS modules and function that contribute to building a ping payload. We should make sure that we're handling exceptions and failures properly.
We should audit the functions and defensively handle possible failure scenarios.