Operating systems were designed with desktops in mind and we have simply migrated the desktop OSes to the laptop environment. Laptop OSes need to be more vigilante about protecting the users' passwords.
Some users do not want laptops to remember any passwords of any kind. Nobody should allow a laptop to remember passwords but there will always be a user who does not want to be bothered to type a password.
Firefox 3 has done away with the useful security feature in Firefox 2 whereby secure encrypted connection were indicated with a visually prominent yellow addressbar.
This feature is really useful in quickly determining if a page into which I enter my personal info (login name, password etc.) is secure. Now I have to be alert enough to always keep an eye on some small icons which don't come to attention easily.
This feature can be restored, but its not straightforward and needs some tweaking of internals. Please bring this feature back, at least on the Ubuntu version.