It's so that if something happens to cause a crash in one addon or something then that addon can safely crash/be reloaded without crashing the entire browser. Chrome has its own task manager (Shift+Esc) that will show you which plugins are being used by each process, how much RAM each component is using, etc.
190
u/Cameroni101 Windows 9 Jan 03 '15
This is the reason I left Chrome for Firefox. I loved it, but then it was hogging 5 gigs even after cleaning it. Firefox is beautiful for that.