There has been a vulnerability found in the Firefox web browser that could allow a phishing web site [define Phishing] to appear authentic.
This but was posted by Michal Zalewski on Full Disclosure, a security mailing list . A phisher could potentially manipulate authentication cookies and that could cause a malicious web site to appear authentic to Firefox.
Since phishing attacks are so malicious, this is a pretty but vulnerability. Window Snyder is Mozilla’s security chief and says they will be addressing this flaw in Firefox version 22.214.171.124.
Snyder said that Mozilla has not heard of any exploits but they are working a quickly as possible to fix it. Until they do, if you are a user of Firefox, be careful of where you surf and make sure that you have Firefox automatic updates turned on so you will be patched as soon as a fix is released.
Alternatively, you could use Opera for your web browser or Internet Explorer.