Even the article points out that Firefox how has the highest number of vulnerabilities. Being a web application creator I'd also like to point out that working through FireFox's rendering bugs is a huge pain.

Lets also stop forgetting that IE is free. Just becaue the company that makes it has money doesnt mean its not in the same park as FireFox. The only differance is that the code is controlled with IE and is open to the world with FireFox. I'll admit that in the short run FireFox has previously been more secure, in the long run IE is going to be more secure simply because the number of people who can gain the in depth knowledge of its innerworkings is limited. I think we are going to start seeing IE cain more and more security and FireFox slowly getting left behind (this is especially true with microsofts focus on security as a whole). Eventually FireFox is just going to be another hacker novelty item with no real sticking power just like netscape.

Before I fire up a usless netscape debate, lets remember when you toss asside the fairness of integrating browsers with an OS and all that drama, IE was the better browser. Better to code for and better to use.

Matt