Mozilla recently released Firefox 45.0 . Make sure you have the latest greatest.
In the browser, I like to hit CTRL - four times will zoom out to get a more comfortable view for me personally.
In the browser, hit CTRL + will zoom in.
In the browser, hit CTRL 0 will reset browser view.
In NP2 :
Z shortcut key toggles the galactic mini-map.
= (+) or - shortcut keys or Mouse Wheel zooms the galaxy in and out.
H shortcut key centers the galactic map on your empire.
O shortcut key opens the Options.
My personal preferences are
Ship count = 150
Star names = 350
Infrastructure = 250
Player Names = 1550
Default Action = Garrison 1
You can change them for your own personal preferences.
Click on the top left corner three bars ’ menu / HELP / Keyboard Shortcuts ’ will show all the quick keys.