browser.sessionstore.enabled doesn't exist anymore

Hello,

Since Firefox 3.5 this preference is superseded with setting browser.sessionstore.max_tabs_undo and browser.sessionstore.max_windows_undo to 0.
See http://kb.mozillazine.org/Browser.sessionstore.enabled
Should add this to in the page http://portableapps.com/support/firefox_portable#performance

My question is : is it necessary to do all that is described in this page http://portableapps.com/support/firefox_portable#performance if I set the value RunLocally=true in the FirefoxPortable/FirefoxPortable.ini file?