I honest to whatever cannot believe they'd leave the command line tool (we used to have an add-on for that that was a collaboration between a non-Moz dev and Moz starting 10 years ago; it was so unpopular Mozilla eventually yanked it) and pull the toolbar. I don't think they always make the wisest decisions. Considering how much the user base is shrinking I really can't see why they don't do in-browser polling before they pull something, anything, at this point (if they'd done that starting a while ago they'd still have the status bar, for sure).