Only does 1/2 the job Rated 3 out of 5 stars
Being able to resize to some saved sizes is only part of the solution. Must be able to save the positions, also... or at least provide a way to say "move window to NE, or NW, or SE, or SW... Please provide me with the code so that I can write my own add-on. Of course I only need this because they BROKE the functionality of re-sizing and re-positioning inside bookmarks (by providing the MALFUNCTIONING FUNCTIONALITY of "allowing only OK'd sites to do so" (meaning, "allowing no sites to do so no matter which way you check the "option").