Or uncheck the box "Allow Thunderbird to send technical and interaction
data to Mozilla" within the Edit - Preferences - Privacy & Security menu.
Shouldn't this be the default?
I was shockingly surprised to see this enabled after TB upgraded. If
memory serves me, telemetry is always off by default in previous version
of TB (and Firefox) shipped by Debian.
There are people in sensitive settings (i.e. government, highly
regulated business) that simply cannot have ANY telemetry in their
software, and they might be relying on Debian to provide this assurance
as it had been done historically. Simply stating "just uncheck that
option" to someone that has to manage thousands of machine doesn't sound
right to me.
--
FVS