But apparently only if you close it while its NOT maximized. Close out the non-maximized screen in the right monitor, then next time its opened, it comes up in that monitor. No need to drag it over. Not just for Firefox, but other programs as well. Have "assigned" three programs to open in the right-side screen whenever they're brought up. Quick launch icons stay on the left screen, which feels weird, but NBD. Thinking that I should've gone to duals a long time ago.