"Security vulnerability" ... Mozilla Firefox 16.
Firefox 16 was pulled offline only a day after its release by its maker, Mozilla, after a major "security vulnerability" was discovered.
"Mozilla is aware of a security vulnerability in the current release version of Firefox," Mozilla's Director of Security Assurance, Michael Coates, wrote in a blog post. "We are actively working on a fix and plan to ship updates tomorrow. Firefox version 15 is unaffected."
The security flaw in the world's third most popular browser has the potential to allow hackers and malicious sites to see a user's browsing history.
"The vulnerability could allow a malicious site to potentially determine which websites users have visited and have access to the URL or URL parameters," said Coates.
The non-profit company said that only a "limited number of users are affected".
Despite assuring users that there is "no indication that this vulnerability is currently being exploited in the wild", the company recommended that users downgrade to Firefox 15.0.1 until a fix was released.
Earlier this morning a patch was released for the mobile version of Firefox running on Android smartphones. A short while later, an update was made available to Windows, Mac and Linux users of the desktop browser - Firefox 16.0.1. It is recommended that users upgrade immediately.