I’m continually dispelling the myth that MSIE has security holes while FireFox is immune to these type of problems. It’s simply not so — here’s the current released update to Firefox which resolves 12 security holes. Some exploits can be used to execute malicious code on not only Windows; but also Linux and the Mac OS X platform!
CRITICALMFSA 2006-55 Crashes with evidence of memory corruption (rv:184.108.40.206)
MFSA 2006-51 Privilege escalation using named-functions and redefined "new Object()"
MFSA 2006-46 Memory corruption with simultaneous events
MFSA 2006-44 Code execution through deleted frame referenceHIGHMFSA 2006-54 XSS with XPCNativeWrapper(window).Function(…)
MFSA 2006-47 Native DOM methods can be hijacked across domainsMODERATEMFSA 2006-56 chrome: scheme loading remote content
MFSA 2006-53 UniversalBrowserRead privilege escalation
MFSA 2006-52 PAC privilege escalation using Function.prototype.call
Check out the Beta’s of Microsoft Internet Explorer 7.0 and FireFox 2.