I really don't want to reset Safari unless I have to.
I have Firefox, but don't use it much, since I prefer Safari. It's hard to predict when a new PM is going to arrive to ensure I am using FF when the pop-up occurs to see what happens.
My mac does a weekly software check, so I'm as current as anything released within the last week on OSX. I might look to try Safari 4.0.1 since it's starting to be a complete pain, not to mention I lose everything else I have open on tabs