Quantum is multi-process, so that part is expected.is it really normal that the Firefox process starts with 3 splitted sepparate Firefox.exe processes
fluctuating between 199 mb to 250 mb from start, and gradually the processes multiply to 5-6 Firefox.exe and the process gets close to 450 mb each and
perforamance gets sluggier and im being forced to clear ram (pref by restarting Firefox) or a ram-clean tool (as i told you i got 8 gb physical ram, 16 total)
200 on startup, very likely.
Increases as time goes on, ditto.
How the browser is actually reacting, that's going to be more dependent on the sites you're visiting & how they are (negatively) affecting your browser (rather then having some direct correlation to "high memory usage").
Clearing RAM, I mention here, http://forums.mozillazine.org/viewtopic ... #p14866167.