I've currently found out this ones unused.
webPushIntegration removed because looks like all fatal bugs solved as it said from note.

See https://github.com/mozilla-mobile/fenix/issues/4046 for a detailed discussion of this.

In short, this patch removes code that would conditionally hide desktop bookmarks depending
on the signed-in state of the browser.

They were both in their packages by themselves, which feels unnecessary.
Unfortunately, a utils pkg is discouraged by kotlin but we don't have a
better place for them right now. Maybe an annotations/ pkg for the
latter?

This removes Fretboard. The goal is to reduce cold startup costs associated with loading the experiments on the main thread. We currently have two experiments frameworks in use and should only require one.

fixing Jenkins path to tests and clean tests

commenting future tests and adding doc with info about the tests

This patch includes:
- WebChannels support enabled by default, with ability to disable it via remote flag
- expanded FxA telemetry (closes #4971)
Co-authored-by: Arturo Mejia <arturomejiamarmol@gmail.com>

Closes #2342, Closes #2297

This patch integrates relevant a-c components, and updates the current Preferences
UI to allow signing-in and displaying basic account information (email, displayName).

Currently there's no Accounts UI, and so singing out or otherwise interacting with the
account isn't possible.