Yeah listen to them. They know everything/
If you want to try a fast low resource browser try Chrome.
Hit ctrl/alt/delete and then taks manager/processes
Sort my mem usage. What are your top 10?
Yeah I've done this several times... it seems so weird. The only processes I have using any CPU usage at the moment are:
System Idle 94 16K
TeaTimer.exe 4 85588K
taskmgr.exe 2 5040K
explorer.exe 1 29096K
and firefox is fluctuating around 8-15 at around 100,000K