RLSA-2026:6917 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-4701 firefox: thunderbird: Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and...

Updated nspr, nss & firefox packages fix security vulnerabilities

Use-after-free in the WebRTC: Signaling component. CVE-2025-14321 Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. CVE-2025-14322 Privilege escalation in the DOM: Notifications component. CVE-2025-14323 JIT miscompilation in the JavaScript Engine: JIT...