To actually use separate processes, for now you must take the following steps:
* Run "$objectdir/dist/bin/firefox-P JunkProfile" and set the following pref using about:config (note: you will not be able to run regular firefox processes again after you set tabs.enabled--only the remote-tab demo--so you may wish to in this example we use a separate firefox profile specifically for running electrolysis, i.e. pass "-P JunkProfile" to this command and whenever you run the remote-tab demo)
dom.ipc.tabs.enabled: true
cd ''$objdir''/dist/bin
./firefox -P JunkProfile -chrome chrome://global/content/test-ipc.xul