[qplex]

So they push this background addon to 1% of users that tells them if Telemetry is enabled or not. This is much better than some vague claim.

What about the other things you mentioned?

>changing your Firefox settings and/or install "experiments", at any time, without any notice to you!

Never had this happen to me.

[jlgaddis]

Look up "Firefox Normandy" and "Firefox Shield".

[qplex]

What's to look up?

Firefox studies was called project Shield before.

Disable studies and it's gone.