btw if you rotate screen - it renders the page. looks like some missing invalidate/redraw event chain.

Edit: apparently something is broken with QmlMozView in latest release, probably deliberately to discourage people using it
But a) it does not change geometry - hence screen orientation change is impossible now b) any attempt to change geometry forces redraw (even height+1/height-1) and c) it works only once - closing settings and opening again doesn't show anything at all any more.
And implementing it as sailfish-browser does it (through oglpage) is too much overhead - we do not need tabs. Also @abranson is saying this is still subject to change till new widget is properly implemented by jolla. Maybe will look into it later trying to reuse sailfish-browser's declarative implementation.