Decide which components of Fenix to rip out, disable, or use
One thing we are struggling with when trying to write proper patches for building various parts of Fenix is that it's not clear yet which components we want to rip out/disable/use.
E.g. there are a number of things we might want to rip out of android-components (comment:4:ticket:33156) or maybe not, it's not clear. We have already a separate bug (#33594 (closed)) to figure out what we should do with Glean.
So, in this ticket we should look over the various components involved and decide
a) which to rip (fully) out at build time b) disable at run time
and document the reasoning (maybe that could be part of our release prep process documentation).
I think by default we should enable everything for usability reasons and disable potentially fingerprinting/tracking features where we don't have patches (yet) and rip out outright dangerous ones if we don't find a better solution. That's a similar method we follow for desktop audits.