Why is their no information available on how to manually install updates

the help section on installing updates is truly lame. there is a circular logic which never allows one to get to a section describing how to manually install updates. the install updates section only shows you how to manually check for updates, not install. and when you click on issues it takes you to another section that only refers you back to the previous section. this is lame. i continue to get an unable to install error, and advice to manually install, but there are no instructions! == This happened == Every time Firefox opened == months ago == == User Agent == Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.70 Safari/533.4