Years back, every web browser's built-in password manager locked up the page when submitting a login form, waiting for the user to answer "do you want to save this password?" before proceeding. I thought that was silly: how do I know if I want to save the password before I've seen whether it's correct? Which I can't see until the form is submitted. At the time I was using Opera, so I wrote in to their customer suppor…
i still see this behavior in firefox. the save password popup disappears by the time the page is loaded. and it baffles me every time how that is supposed to be useful.
On the bright side it just collapses into a "key" icon in the URL bar that you can click to open it back up and save the password.