Earlier quoted context omitted.
I've been through all of Firefox `about:config` a few times in the past, fixing preferences to, e.g., try to disable umpteen different services that leak info or create potential vulnerabilities gratuitously, but this is the first I recall hearing of Normandy. Apparently I missed `app.normandy.enabled`, because I think I would've remembered a name with connotations of a bloody massive surprise attack. Incidentally, `…
I too use Debian's Firefox ESR. I noticed the "Allow Firefox to install and run studies" option in Privacy & Security Preferences a long time ago. It was unchecked and greyed out (i.e., unclickable), and a label below it says "Data reporting is disabled for this build configuration", so I gave it no further thought. This morning I woke up and launched Firefox, noticed this headline, and then noticed my extensions wer…
FYI, I have learned from other user's comments and the Wiki page below that Studies and Normandy are different things. The former depends on the latter, but not vice versa. So it is possible that Debian disabled the studies program but did not disable the underlying Normandy tool. You might also want to look at whether firefox is affected in addition to firefox-esr.
https://wiki.mozilla.org/Firefox/Normandy/PreferenceRollout#...