This is a site offering a totally free browser security test simply by visiting their webpage. They scan for 40 known browser vulnerabilities and it works on both Firefox and Internet Explorer. I didn’t test it on other browsers but it may work for them too.
Each vulnerability is detailed out with a description of the risk, the technical details associated with the vulnerability and recommendations for how to deal with or patch the flaw as well as some links to additional information that you may find useful.
Go test your browser now and get more secure if you need to! It only takes a couple of minutes and its free.Ganesh.KB