Google and Mozilla have rolled out significant security updates for their respective web browsers, Chrome and Firefox, addressing a total of 26 security flaws. Google Chrome 144, released to the stable channel on January 13, 2026, for Windows, macOS, and Linux, patches 10 security vulnerabilities. Among these are several high-severity flaws found in the V8 JavaScript engine and the Blink rendering engine, which could potentially lead to arbitrary code execution or sandbox escapes. Google has acknowledged the contributions of external security researchers by awarding bug bounties for their discoveries. Concurrently, Mozilla Firefox 147 was also released on January 13, 2026, incorporating fixes for at least 16 security vulnerabilities. Seven of these are classified as high severity, with a notable concern being four 'sandbox escape' flaws. These types of vulnerabilities are particularly critical as they could allow attackers to bypass the browser's security mechanisms. Beyond security, Firefox 147 also introduces improvements such as enhanced video playback performance on AMD GPUs and strengthened privacy protection via Safe Browsing v5. The collective patches from both browsers underscore the continuous effort to maintain a secure browsing environment for users worldwide. Users are strongly advised to update their browsers immediately to protect against potential cyber threats.