Is Mozilla officially supporting Firebug development yet? They ignored it for years, choosing to keep supporting and even bundling their useless "Web Developer

Is Mozilla officially supporting Firebug development yet? They ignored it for years, choosing to keep supporting and even bundling their useless "Web Developer Toolbar". The Web Inspector lives in the tree with the code, is tested along with it. and is released as one package. Mozilla constantly breaks the already-fragile Firebug through automatic updates to Firefox, or by haphazardly updating the extension from addons.mozilla.org.