Do you think you're safer using Firefox? Not necessarily
Source: http://blogs.zdnet.com/Ou/?p=461 (thanks Harry for bringing this to my attention)
"Firefox alone in recent months has had more exploits than Windows XP and Vista combined and is in serious need of mitigation measures (not to mention better code auditing). For example, here's a batch of 11 critical vulnerabilities and here's a batch of nine critical vulnerabilities, and some of those exploits were zero-day with proof-of-concept code. If Mozilla ever wants Firefox to be taken seriously, it's going to need to do better auditing of its code and implement security measures that are available in the operating system. The Web browser is simply too large an exploit vector to ignore, and the sooner Mozilla implements Protected Mode the better."
Harsh words, but needed. I still see too many people holding up Firefox as the be-all-and-end-all of security.
It doesn't matter what software you use - you have to stay patched, you have to stay aware, and you have to use safe hex.