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General FAQ

Question​

What's the difference between "Experimenter" and "Nimbus"?

Answer​

Nimbus is the code name of the experimentation project, so Nimbus refers to the whole experimentation system (handles enrolling/unenrolling users, sending branch configurations, etc). Experimenter is the customer interface to both Nimbus and Jetstream that you access at http://experimenter.services.mozilla.com/. In Experimenter, users can configure experiments, manage them (launch, monitor, end), and can see the results.

Question​

What is Jetstream?

Answer​

Jetstream is the whole analysis system (interfaces with data, runs analysis, formats results).

Question​

What is Normandy?

Answer​

Normandy (https://experimenter.services.mozilla.com/legacy/) is the legacy experimentation platform for Firefox. It is being deprecated in favor of Nimbus.