Separate search and address bars

about:preferences, search for "search bar"
click on "add search bar in toolbar"

Get rid of searching in the address bar:

about:config
     browser.search.suggest.enabled => False
     browser.urlbar.quicksuggest.enabled => False
     browser.urlbar.suggest.searches => False
     keyword.enabled => False

Fix Firefox's nanny protection from older TLS versions

about:config

security.tls.version.enable-deprecated  

Default "false"

change to "true" to get access (still have to go through "are you sure???" hoops)

Fix Firefox's hijacking of the Mac’s media keys

about:config

media.hardwaremediakeys.enabled

Default "true"

change to "false" to keep Firefox from hijacking the media keys.

Keyboard shortcuts

Keyfunction
cntl/cmd + Lstart typing in address bar
cntl/cmd + Kstart typing in search bar