Regarding telemetry, take a look at the settings in about:config. There are several toolkit.telemetry.Ping settings which are set to true by default. In the spi

Regarding telemetry, take a look at the settings in about:config. There are several toolkit.telemetry.Ping settings which are set to true by default. In the spirit of charity I'm going to assume that those phone home pings - on startup, shutdown, update - are not enabled unless telemetry is enabled. But I have not checked...