Not only is the statement fallacious, it's only half the truth. Even if Firefox were just as insecure as IE, there's an issue at play he fails to even mention: reaction time. The Firefox team has acknowledged, patched and reproduced security holes, tested the patch, and put patches and patched installation packaged only within 24 hours several times. I'll eat a broom if MSFT ever manage this feat. And the average reaction time for Firefox holes is a couple of days.
I promise that noone who matters would even care about how buggy MSFT software is if their reaction times were at all acceptable.
Sometimes critical take-over-the-computer exploits go unfixed for half a year. That's plain ludicruous.
