Firefox 16 was released just a day ago by Mozilla and was available for download from the Mozilla Public Servers. But today Mozilla pulled out Firefox 16 from their servers after aÂ Security Vulnerability was discovered in Firefox 16. They areÂ working on a fix and plan to ship updates tomorrow. At the moment, Firefox 16 isÂ temporarily removed from the current installer page and Â you can only download Firefox 15.0.1 from their servers.
Details of Security Vulnerability discovered
The vulnerability discovered could allow a malicious site to potentially determine which websites Â users have visited and have access to details like URL or URL parameters. Mozilla is still toÂ receiveÂ any reports about the vulnerability being exploited by hackers.
Downgrade to Firefox 15.0.1
If you have already downloaded and installed Firefox 16, its better you switch to Firefox 15.0.1. Â If youÂ don’tÂ want to downgrade to Firefox 15, you can wait for the patch to arrive. Firefox 16 will be updated automatically when Mozilla releases the patch forÂ Security Vulnerability.
via: Mozilla Blog