Are Privacy Badger and Web Archive being automatically installed?

It’s appearing to people that Firefox for Android is automatically installing extensions like Privacy Badger (few weeks ago) and now Web Archives. See this thread on the Fediverse for example:

These are excellent extensions, of course, but is it really the intention to push them to everyone, or are we running into a bug, possibly one where users are misunderstanding what the dialog is trying to tell us, when it says: ‘Web Archive has been added to Firefox’?