privacytests
Test behavior when "parental controls software" is installed
Per this Mozilla doc:
How will ECH impact parental controls? If parental controls are applied, ECH encryption is disabled in order to avoid interfering with parental controls.
Why can’t users directly control ECH? In line with our commitment to privacy and security by default, we aim to ship Firefox with a comprehensive set of protections enabled by default. Consequently, ECH is enabled by default but won’t be used if family safety software is used or Firefox has been configured as part of an enterprise. This is similar to other security and privacy technologies used in Firefox like TLS 1.3, which also isn’t exposed as a user setting.
From speaking to the Tor Browser developers, my understanding is that they patch out Firefox's malware-facilitating code. (I haven't verified this experimentally or by reading the relevant code.) It would be interesting to include this metric on PrivacyTests, seeing as this is a threat model that affects a nontrivial number of users.
ECH is the most obvious thing to test, seeing as Mozilla brags about disabling it, but I wouldn't be surprised if other privacy features go poof in such situations. DoH is an obvious candidate.
