Talkback, a crash information reporting tool by SupportSoft, bundled with Firefox and Thunderbird will be replaced with Airbag, a similar open source application. The move to the new crash reporting toll will be done by Mozilla and Google.
If you have ever experienced a Firefox crash, you may have noticed a dialog that appears soon afterwards asking for details on what web page you were visiting and what you were doing as a means to aid developers diagnose and fix the cause. That's Talkback in action.
According to Benjamin Smedberg's post, Airbag, will provide developers and bug reporters, immediate crash stack information on the client, the ability to combine information from "multiple sources, including the XULRunner runtime, application binaries, extensions, plugins, and perhaps even some system libraries"; and "it will hopefully allow [developers] to collect stack information from some kinds of runtime assertions, not just crashes." In summary, it will be a more efficient helper for quality assurance purposes.
Smedberg will add Airbag to XULRunner in the next few weeks.