Configure Firefox
about:preferences > General > When Firefox Starts > Show your windows and tabs from last time
about:preferences > General > Performance (untick Use recommended) > Use acceleration > process limit = 7
about:config > browser.sessionstore.restore_on_demand = False
about:config > network.http.pipelining > true
about:config > network.http.pipelining.maxrequests > 6
about:config > network.http.proxy.pipelining > true
about:config > rClick create bool > extensions.checkCompatibility = false
about:config > browser.sessionstore.interval = 35000 (save the session half as often, every 35 seconds)
about:config > browser.link.open_newwindow.restriction = 0
about:config > layout.spellcheckDefault = 2 (turn on spellcheck every box)
about:config > rClick create bool > config.trim_on_minimize = true
about:config > browser.urlbar.clickSelectsAll = true