Mozilla Product Security Update Advisory
Mozilla has released security updates to fix multiple vulnerabilities found in Firefox, Firefox ESR, and Thunderbird. the vulnerabilities fixed are CVE-2026-8090, CVE-2026-8091, CVE-2026-8092, CVE-2026-8093, and CVE-2026-8094. CVE-2026-8090 is a post-release use vulnerability in the DOM: Networking component. CVE-2026-8091 is an improper boundary condition vulnerability in the Audio/Video: Playback component. CVE-2026-8092
