- update to 153.3.1 ESR (MFSA 2026-96) - 153.3.1 is a respin of 153.3 and carries no security content of its own; every fix listed below comes from 153.3 - regenerate langpacks from the 153.3.1esr release xpi set (66 languages, the same set as 153.2.0esr) - CVE-2026-92238: Ambiguous parsing of mail headers - CVE-2026-92239: Buffer overrun in IMAP - CVE-2026-92240: Out-of-bounds read in IMAP response parser - CVE-2026-92005: Use-after-free in the Audio/Video: Web Codecs component - CVE-2026-92006: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component - CVE-2026-92007: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component - CVE-2026-92008: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component - CVE-2026-92009: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component - CVE-2026-92010: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component - CVE-2026-92011: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component - CVE-2026-92012: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component - CVE-2026-92013: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component - CVE-2026-92015: Privilege escalation in the WebExtensions component - CVE-2026-92035: Sandbox escape due to incorrect boundary conditions in the Graphics component - CVE-2026-92016: Use-after-free in the Disability Access APIs component - CVE-2026-92017: Privilege escalation in the DOM: Service Workers component - CVE-2026-92018: Sandbox escape in the DOM: Core & HTML component - CVE-2026-92019: Mitigation bypass in the Remote Settings Client component - CVE-2026-92020: Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component - CVE-2026-92022: Use-after-free in the DOM: HTML Parser component - CVE-2026-92023: Use-after-free in the XML component - CVE-2026-92024: Use-after-free in the SVG component - CVE-2026-92025: Use-after-free in the DOM: Navigation component - CVE-2026-92026: Use-after-free in the Networking component - CVE-2026-92027: Use-after-free in the DOM: Streams component - CVE-2026-92028: Use-after-free in the DOM: Core & HTML component - CVE-2026-92029: Use-after-free in the SVG component - CVE-2026-92030: Mitigation bypass in the DOM: Copy & Paste and Drag & Drop component - CVE-2026-92031: Information disclosure in the Graphics: ImageLib component - CVE-2026-92032: Sandbox escape due to invalid pointer in the Graphics component - CVE-2026-92038: Mitigation bypass in the Remote Settings Client component - CVE-2026-92039: Mitigation bypass in the DOM: Notifications component - CVE-2026-92041: Mitigation bypass in the DOM: Networking component - CVE-2026-92042: Race condition in the DOM: Content Processes component - CVE-2026-92043: Privilege escalation due to incorrect boundary conditions in the Audio/Video component - CVE-2026-92044: Information disclosure in the Networking: HTTP component - CVE-2026-92045: Sandbox escape due to incorrect boundary conditions in the WebRTC component - CVE-2026-92046: Use-after-free in the Graphics component - CVE-2026-92047: Privilege escalation in the Crash Reporting component - CVE-2026-92048: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component - CVE-2026-92049: Use-after-free in the Widget: Win32 component - CVE-2026-92052: Privilege escalation due to uninitialized memory in the Graphics: CanvasWebGL component - CVE-2026-92053: Privilege escalation in the Graphics: CanvasWebGL component - CVE-2026-92054: Privilege escalation in the Memory component - CVE-2026-92055: Privilege escalation in the DevTools component - CVE-2026-92056: Use-after-free in the Graphics: Text component - CVE-2026-92057: Mitigation bypass in the Enterprise Policies component - CVE-2026-92058: Use-after-free in the Graphics component - CVE-2026-92059: Incorrect boundary conditions in the DOM: Editor component - CVE-2026-92060: Use-after-free in the Internationalization component - CVE-2026-92062: Privilege escalation in the Session Restore component - CVE-2026-92064: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component - CVE-2026-92065: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component - CVE-2026-92067: Use-after-free in the Widget: Gtk component - CVE-2026-92068: Site isolation issue in the Reader Mode component - CVE-2026-92069: Spoofing issue in the DOM: Navigation component - CVE-2026-92070: Information disclosure in the Networking component - CVE-2026-92071: Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component - CVE-2026-92072: Incorrect boundary conditions in the Safe Browsing component - CVE-2026-92073: Privilege escalation in the Enterprise Policies component - CVE-2026-92074: Mitigation bypass in the Popup Blocker component - CVE-2026-92075: Mitigation bypass in the Networking component - CVE-2026-92076: Incorrect boundary conditions in the Networking component - CVE-2026-92077: Denial-of-service in the SVG component - CVE-2026-92078: Denial-of-service in the Security component - CVE-2026-92079: Mitigation bypass in the Widget: Win32 component