Firefox "patches"

Since Firefox 1.01, their update notification feature has been turned on. But when I click on the icon to download the patch, I get the entire browser package put into my usual download directory (i.e., my desktop.) The install package then runs, uninstalls the old browser, installs the new version, and then just leaves the install file on my desktop.

I can't believe this is their "patch" feature. What complete crap. I just updated FF 1.03 a few minutes ago, and it's the same old sorry thing. At least my download directory is my desktop where I can see what's happening. I wonder how many people have each 4MB patch on their system and don't even know about it?