The US Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency have advised all Mozilla Firefox users to urgently update their browser versions, following discovery of a vulnerability that grants potential access to the operating system.
The unusual warning comes after Mozilla itself admitted being aware of ‘targeted attacks in the wild abusing this flaw.’
Security loopholes in major platforms are usually closed before criminals are able to exploit them on mass, but this latest admission raises the ‘security advisory’ notice to ‘critical’ status.
Users should upgrade their browser to at least version 72.0.1 on PC/Mac – mobile versions are thought to be unaffected.
- To upgrade on PC, open Firefox and click ‘About’ and select ‘Restart and Update Firefox.’
- To upgrade on Mac, open Firefox and click ‘Options’, ‘Firefox Updates or Options’, ‘Advanced’, ‘Update to update Firefox.’
Discovered by Chinese security company Qihoo 360 just two days following the release of Firefox’s previous update, the US Government ‘encourages users and administrators…. To apply the necessary updates.’
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