>> I’m not sure he knows the type of person that actually uses Firefox
I'm sure he does, but he is trying to get different users.
The problem Firefox has is that it has accumulated "problem" users who are only there because they've left everywhere else.
In other words, people didn't choose Firefox cause its better, they chose it because it "wasn't x". They were offended by some action of their last browser, and left.
This is the worst user demographic to have. They'll only hang around till you do something that offends them. Which will inevitably happen.
With 2% market share the goal of the new CEO is not to pander to existing users. It's to convince new users to switch because Firefox is better.