> 2) One process per tab. Even with e10s, all javascript in all tabs runs on a single core. So at the moment, using Firefox on an 8 core computer is like using

> 2) One process per tab. Even with e10s, all javascript in all tabs runs on a single core. So at the moment, using Firefox on an 8 core computer is like using Chromium on a single core machine. Multiple content processes (e10s-multi) is in the works, see https://wiki.mozilla.org/Electrolysis/Multiple_content_processes https://wiki.mozilla.org/Electrolysis/Multiple_content_proce...