Here's the traffic from Firefox 102.0.1 on macOS with all extensions disabled and every possible telemetry feature opted out. On the left, start, on the right,

Here's the traffic from Firefox 102.0.1 on macOS with all extensions disabled and every possible telemetry feature opted out. On the left, start, on the right, exit. I would like Firefox to be completely silent on start and exit. I would even lazy-load certificate-related updates. Firefox developers have already told me they have no interest in implementing a feature to disable all this phoning-home to Mozilla, even through an advanced or hidden config.