browser.tabs.closeButtons [Integer] – 2 so no close buttons appear. Use middle-click on tab to close it
browser.urlbar.hideGoButton [Boolean] – true. I never use it, so why have it taking up space?
keyword.URL [String] – ‘http://www.google.com/search?&q=’ . When set to this, typing something that isn’t a URL into the address line automatically goes to google and does a search.
browser.tabs.loadFolderandReplace [Boolean] – false. When open a group of tabs, won’t replace tabs already open in browser.