Not sure I follow, but if its sizing and placement..
Typically re-sizing how you like, closing and relaunching typically "sets" it...
Example: Maximize Firefox close FF relaunching it should open full screen, re-sizing to something smaller closing and relaunching will typically open back to same size...
Think this works same as Windows... I prefer opening with smaller window sizes and if I recall I don't have to resize.. Unless what yours is doing is maximizing beyond the screen into the panel?