I entirely agree with you, but then again, I don't think Mozilla has always had their priorities straight. My favorite example is the 3D view in the inspector. At the end of 2012, you still can't live edit in Markup Panel in any meaningful way, and yet you have a 3D view. I would LOVE to use the inspect bar if it was usable, but now I'm stuck with it and 8 other items in the Web Developer submenu and Firebug. Firebug's been around forever and does everything the other 9 items can and cannot do. Just bundle it into Firefox already and move on to other things geez...