The browser option is an interesting one. What tends to happen with browsers is the relatively unknown ones are the least susceptible to malware so when everyone cottons onto this they sing its praises, everyone jumps on the bandwagon and IE gets called. But then as it becomes more and more popular, the malware authors take note and write malware/exploits targeting the new browser. In the end it turns out not much better than the browser it was designed to compete with, as is the case with Mozilla Firefox versus IE.
In my experience you are OK with pretty much any modern browser provided it is regularly updated and patched. It is what you do with it what matters.
Me, I am a fan of both IE9 and Google Chrome.