Overview
- Mozilla released Firefox 151 on Wednesday, May 20, which fixes more than 30 security vulnerabilities and ships new privacy and utility features.
- Firefox 151 gives signed‑in users a built‑in VPN with a 50 GB monthly allowance and a choice of virtual endpoints in Germany, France, the UK, Canada and the US.
- The update tightens anti‑fingerprinting in the default tracking profile, which Mozilla says reduces unique identifiability by about 14 percent overall and about 49 percent on macOS.
- Google published Chrome 148/149 security updates that patch 16 vulnerabilities, including two rated critical, and Chromium‑based browsers are rolling out fixes at different speeds with Brave already updated.
- Researchers reported an accidental public disclosure of proof‑of‑concept code in the Chromium issue tracker that remains unpatched and increases near‑term exploit risk until an official fix is released.