No, Mozilla is not going to diagnose your sinus infection, but it plans to help with the health of your Firefox web browser. It is not currently in the stable build, but the company is testing this new feature for future builds.
The Firefox Health Report is a new system Mozilla has built to log basic health information about your browser (time to start up, total running time, number of crashes, etc.). The company claims “the initial report is pretty simple, but it will evolve and grow in the coming months. You’ll be able to use it as a window into many aspects of your browser’s performance and health, both in absolute terms, as well as in comparison to the global Firefox user base”.
The health report is enabled by default in Firefox but, if you don’t want your browser health information added to the pool then you can disable data sending either from the report itself, or from the Firefox preferences window.
The browser already blocks insecure and unstable plugins, restores tabs and content after crashes and detects phishing and malware sites before they can attack. This new feature just takes the service to the next level.