Hello, from some years, in a lot of computers, when i start firefox, happen that firefox is so much slowly, after start firefox happen that the computer is so much slowly and almost stopped ! Yesterday i have start my computer from hibernation, the computer is so much slowly, i don't know why, also the others browsers go so much slowly, firefox is still stopped, after a lot of minutes, in firefox appear the message that a plugin cause stopped of firefox, this is the usual message that appear in firefox and firefox normally is still stopped, therefore i have close firefox, after appear the window crask of firefox, after i have close firefox, the other two browsers that i had open before start firefox, go so fast, go normally, i think that don't is possible that firefox have the property to stop the full operating system, i understand if firefox is slowly, if is stopped, but i don't understand if firefox cause the slowly stopped of the full operating system, all this facts happen without reason, please check better firefox, have a good day, bye.