Neither of those charts go back far enough because if they did you'd see this has all happened before, and even worse at one point. When IE was taking over the

Neither of those charts go back far enough because if they did you'd see this has all happened before, and even worse at one point. When IE was taking over the world FF fell to <5% of the market, yet it survived. It's not dead until its dead and with Chrome killing off ad-blockers I bet we'll see some reversal of the current trends when that ships.