Firefox: 135 critical update on privacy leak and system security
Fellow Linux admins-
Firefox 135 has implemented critical security updates designed to protect users against some pretty significant privacy leaks. We also learned this version addresses a vulnerability that could lead to an attacker taking complete control of your system.
If you haven't tried Firefox in a while, give it a shot - this version also has some pretty awesome privacy, performance, and stability enhancements that I think you'll enjoy. Read on to learn about the performance, privacy, and security updates in Firefox 135.
You'll also learn about a severe Chrome flaw (CVE-2025-0762) that enables attackers to execute arbitrary code and gain complete control over impacted systems.
If you found value in today’s newsletter, please share it with your friends! Do you have a Linux security-related topic you'd like to cover for our audience? We welcome contributions from passionate, insightful community members who share our love for Linux and security!
Stay safe out there,

Dave Wreski
LinuxSecurity Founder
FirefoxThe DiscoverySeveral significant security bugs have been found in the Mozilla Firefox web browser prior to version 135. |
ChromeThe DiscoveryA severe use-after-free vulnerability has been found in Chrome's DevTools function (CVE-2025-0762). |


