What is pingsender and why does it wants to connect to? I use Firefox and I got this message from Little Snitch.

What is pingsender and why does it wants to connect to incoming.telemetry.mozilla.org?
pingsender is a component of Firefox used by Mozilla for telemetry.


  The ping sender is a minimalistic program whose sole purpose is to deliver a telemetry ping.



https://dxr.mozilla.org/mozilla-central/source/toolkit/components/telemetry/docs/internals/pingsender.rst