Testing some stuff with a new profile on FF9, wanted to install DOM Inspector. Was a little confused why the page only had a "Download" button. The browser's status bar thing seemed to indicate the page was still loading because something was waiting for data from paypalobjects.com. I hit escape to cancel, and suddenly the button transformed to say "Install". Reloaded the page, same effect. I'm guessing that AMO has script on the page waiting for |onload| before processing. That's sucky because the load event doesn't fire until eeeeeeverything on the page loads. Whatever controls this button should be run inline, or use the DOMContentLoaded event instead.
we've improved the JS a lot since this bug was filed. closing