Win32k Lockdown is specific to Windows machines. Now, Firefox has debuted Win32k Lockdown, which together with Fission and RLBox “will significantly improve Firefox’s security”. The team has already introduced Fission, a sandbox for web pages and frames, as well as RLBox, a subcomponent isolator.
The Mozilla team wanted to refine the model further – a challenging prospect since “content processes need access to some operating system APIs to properly function: for example, they still need to be able to talk to the parent process”, according to Pascutto. YOU MIGHT ALSO LIKE ‘Browser in a browser’ – Phishing technique simulates pop-ups to exploit users The reasoning behind this model is that if a bug exists in a content process, the potential attack vectors are limited. When users browse the web through Firefox, the software renders content into separate processes, isolated from the operating system (OS) and managed by a single privileged parent process. On May 12, Mozilla security engineering manager Gian-Carlo Pascutto confirmed that the changes were included in Firefox 100, released to the stable channel on May 3. Mozilla’s Firefox has introduced improved security mechanisms to reduce the browser attack surface. The goal was Win32k Lockdown – a serious step up in Windows security
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