They seem to be trying to gather a lot of telemetry to measure how they can boost popularity of Firefox. I wonder did they tried to measure how the measurement itself influences popularity? Social measurements are like quantum ones, they change reality.
There was a funny story of a Hawthorn Experiment[1], which tried to find ways to boost productivity but at the end managed to state just that the very attempt to conduct an experiment boosts productivity. It seems to me that with Mozilla the effect has a opposite sign and any attempt to measure decreases the target variables of decision making. And therefore they need to find ways to measure "non-invasively", not to measure every little thing they can measure.
There was a funny story of a Hawthorn Experiment[1], which tried to find ways to boost productivity but at the end managed to state just that the very attempt to conduct an experiment boosts productivity. It seems to me that with Mozilla the effect has a opposite sign and any attempt to measure decreases the target variables of decision making. And therefore they need to find ways to measure "non-invasively", not to measure every little thing they can measure.
[1] https://en.wikipedia.org/wiki/Hawthorne_effect