I use alt+S when I can. In FF, you have to go into the config settings and change a parameter for it to work. In chrome, it's there by default.
To fix Alt+S in FireFox 2.x+: Open up a new Window/Tab and type “about:config” in the address bar. In the Filter bar type: “ui.key.contentAccess” and press enter. Double click the item and change the value from 5 to 4. This works in anything after FF 2.