My personal Firefox hacking

Purely for my own future reference. Use at your own risk!

Bringing Alt-S back!
Modify ui.key.chromeAccess to 5
Modify ui.key.contentAccess to 4

Tab behaviour.
browser.tabs.autoHide -> false
browser.tabs.closeButtons -> 3
browser.tabs.loadBookmarksInBackground -> true
browser.tabs.loadDivertedInBackground -> true
browser.search.openintab -> true