I’m sure it’s not an original request 
Maybe it could be just one of the toolbars but completely on the left, really completely with NOTHING to its left, and when the window is downsized to where the LOCATION occupies 90% of the location bar then the rest of the toolbar could break and continue underneath. Personally I want a title-bar which also has the full location, a menu bar, and a nav-bar (or tool bar) & NOTHING ELSE.