Horrible new website! I can't even log in using Firefox on my work desktop; I have Ad Block Plus and NoScript running, and even when I disable Ad Block Plus and configure NoScript to allow all scripts on chase.com to run, the site tells me I have Javascript disabled and won't let me log in. I have to log in using Chrome instead. And the new site is uglier and less intuitive than the old one was.

Why do companies "fix" websites that aren't broken?