The test is simple: Open up this link (caution: It will crash your browser) from an email I sent to myself, open a new tab, switch between tabs a bit, and then close the problematic tab. Simple.
Firefox: Firefox started great–I was able to open a new tab and conduct a Google search after the crash page loaded. However, the browser crashed when I tried to close the crash tab. 3/5
IE7: By far the worst–as soon as I opened the link everything crashed, and closing it was even harder than closing the dead Firefox. 0/5
Chrome: I was hoping that I would get an infamous “Sad Tab.” I was wrong. The crash tab did nothing to affect performance–I opened a new tab, used it, switched back to GMail, closed the crash tab, and nothing happened. It was very exciting. 5/5
But I will be very excited to either have Chrome adapt the usability of Firefox, or Firefox to adapt the solidity of Chrome–the utter nonchalance with which Chrome handled the test is still blowing my mind. I’m pumped.