The new version does seem to be a play at creating a walled garden Firefox platform on Android. I'm curious whether the ability to add arbitrary extensions is

The new version does seem to be a play at creating a walled garden Firefox platform on Android. I'm curious whether the ability to add arbitrary extensions is just ifdef'd out of the play store version, or whether this feature is just fundamentally unimplemented. I don't intend to switch to a different browser from current FF on Android that does not support the extensions I use.