when i startup Firefox and i go to tastmanager, Firefox is 13 times started.. so it eats my CPU space and the computer freezes or becomes slow. i shut down 10 of the Firefox processes and let stay 3 then the computer works fine. but every time i need to do that, how can i get a clean working Firefox ? laptop acer 9920 ddr2 8 gb hdd = ssd cpu T9300 use memory 3gb