A new question that probably belongs in this thread: I'm using firefox 27.0.1 as my default browser and while brt functions, it isn't nice to use with the map confined to a letterbox sized viewport within the window that includes an advert viewport, the elevation profile, routing options and a summary. To get a bigger map I dragged the map viewport on top of the edit viewport then resized (making the other viewports invisibly small except the advert which appears to be unmoveable). Diminishing the size of the window (using Ctrl -) then magnifying the map using the + controller on the map itself enables a setup where the map covers most of the window, but it isn't exactly a convenient way to operate.
Ideally I'd like to transfer just the map and edit viewports to a whole new tab so they will be a useful working size. Is this achievable?
Or am I just missing something blindingly obvious to everybody but me?