Firefox requires urgent update

Firefox users are being warned to update their browser as soon as possible to prevent a security flaw being exploited.

The flaw affects the QuickTime media player, and could allow a hacker free access to your PC.

"QuickTime Media-Link files contain an attribute that could be used on Windows systems to launch the default browser with arbitrary command-line options. This could be used to install malware, steal local data, or otherwise corrupt the victim’s computer," a posting on the Mozilla website said.

Mozilla has posted an update which will close the vulnerability and can be found here.