# CVE-2024-9936: Mozilla Firefox ESR and 4 others: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVE-2024-9936 is fixed in 107 products on 2 platforms, first by firefox 131.0.3+build1-0ubuntu0.20.04.1, released October 14, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-9936
- Priority: Routine
- CVSS: 6.5 (Medium)
- EPSS: 0.0027
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 14, 2024
- Weakness: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2024-9936

## Description

When manipulating the selection node cache, an attacker may have been able to cause unexpected behavior, potentially leading to an exploitable crash. This vulnerability affects Firefox < 131.0.3.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Firefox Developer Edition (en-US) | 132.0 | [Firefox Developer Edition (en-US) 132.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition-132.0.md) | Oct 18, 2024 |
| Windows apps | Mozilla Firefox (en-US) | 131.0.3 | [Mozilla Firefox (en-US) 131.0.3](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-131.0.3.md) | Oct 15, 2024 |
| Windows apps | Mozilla Firefox ESR (ach) | 140.3.0 | [Mozilla Firefox ESR (ach) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ach-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (af) | 140.3.0 | [Mozilla Firefox ESR (af) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.af-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (an) | 140.3.0 | [Mozilla Firefox ESR (an) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.an-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ar) | 140.3.0 | [Mozilla Firefox ESR (ar) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ar-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ast) | 140.3.0 | [Mozilla Firefox ESR (ast) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ast-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (az) | 140.3.0 | [Mozilla Firefox ESR (az) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.az-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (be) | 140.3.0 | [Mozilla Firefox ESR (be) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.be-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (bg) | 140.3.0 | [Mozilla Firefox ESR (bg) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.bg-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (bn) | 140.3.0 | [Mozilla Firefox ESR (bn) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.bn-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (br) | 140.3.0 | [Mozilla Firefox ESR (br) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.br-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (bs) | 140.3.0 | [Mozilla Firefox ESR (bs) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.bs-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ca) | 140.3.0 | [Mozilla Firefox ESR (ca) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ca-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ca-valencia) | 140.3.0 | [Mozilla Firefox ESR (ca-valencia) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ca-valencia-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (cak) | 140.3.0 | [Mozilla Firefox ESR (cak) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.cak-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (cs) | 140.3.0 | [Mozilla Firefox ESR (cs) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.cs-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (cy) | 140.3.0 | [Mozilla Firefox ESR (cy) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.cy-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (da) | 140.3.0 | [Mozilla Firefox ESR (da) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.da-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (de) | 140.3.0 | [Mozilla Firefox ESR (de) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.de-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (dsb) | 140.3.0 | [Mozilla Firefox ESR (dsb) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.dsb-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (el) | 140.3.0 | [Mozilla Firefox ESR (el) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.el-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (en-CA) | 140.3.0 | [Mozilla Firefox ESR (en-CA) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.en-ca-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (en-GB) | 140.3.0 | [Mozilla Firefox ESR (en-GB) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.en-gb-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (en-US) | 140.3.0 | [Mozilla Firefox ESR (en-US) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (eo) | 140.3.0 | [Mozilla Firefox ESR (eo) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.eo-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (es-AR) | 140.3.0 | [Mozilla Firefox ESR (es-AR) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-ar-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (es-CL) | 140.3.0 | [Mozilla Firefox ESR (es-CL) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-cl-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (es-ES) | 140.3.0 | [Mozilla Firefox ESR (es-ES) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-es-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (es-MX) | 140.3.0 | [Mozilla Firefox ESR (es-MX) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-mx-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (et) | 140.3.0 | [Mozilla Firefox ESR (et) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.et-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (eu) | 140.3.0 | [Mozilla Firefox ESR (eu) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.eu-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (fa) | 140.3.0 | [Mozilla Firefox ESR (fa) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fa-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ff) | 140.3.0 | [Mozilla Firefox ESR (ff) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ff-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (fi) | 140.3.0 | [Mozilla Firefox ESR (fi) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fi-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (fr) | 140.3.0 | [Mozilla Firefox ESR (fr) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fr-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (fur) | 140.3.0 | [Mozilla Firefox ESR (fur) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fur-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (fy-NL) | 140.3.0 | [Mozilla Firefox ESR (fy-NL) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fy-nl-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ga-IE) | 140.3.0 | [Mozilla Firefox ESR (ga-IE) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ga-ie-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (gd) | 140.3.0 | [Mozilla Firefox ESR (gd) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gd-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (gl) | 140.3.0 | [Mozilla Firefox ESR (gl) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gl-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (gn) | 140.3.0 | [Mozilla Firefox ESR (gn) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gn-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (gu-IN) | 140.3.0 | [Mozilla Firefox ESR (gu-IN) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gu-in-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (he) | 140.3.0 | [Mozilla Firefox ESR (he) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.he-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (hi-IN) | 140.3.0 | [Mozilla Firefox ESR (hi-IN) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hi-in-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (hr) | 140.3.0 | [Mozilla Firefox ESR (hr) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hr-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (hsb) | 140.3.0 | [Mozilla Firefox ESR (hsb) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hsb-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (hu) | 140.3.0 | [Mozilla Firefox ESR (hu) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hu-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (hy-AM) | 140.3.0 | [Mozilla Firefox ESR (hy-AM) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hy-am-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ia) | 140.3.0 | [Mozilla Firefox ESR (ia) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ia-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (id) | 140.3.0 | [Mozilla Firefox ESR (id) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.id-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (is) | 140.3.0 | [Mozilla Firefox ESR (is) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.is-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (it) | 140.3.0 | [Mozilla Firefox ESR (it) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.it-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ja) | 140.3.0 | [Mozilla Firefox ESR (ja) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ja-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ka) | 140.3.0 | [Mozilla Firefox ESR (ka) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ka-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (kab) | 140.3.0 | [Mozilla Firefox ESR (kab) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.kab-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (kk) | 140.3.0 | [Mozilla Firefox ESR (kk) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.kk-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (km) | 140.3.0 | [Mozilla Firefox ESR (km) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.km-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (kn) | 140.3.0 | [Mozilla Firefox ESR (kn) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.kn-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ko) | 140.3.0 | [Mozilla Firefox ESR (ko) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ko-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (lij) | 140.3.0 | [Mozilla Firefox ESR (lij) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.lij-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (lt) | 140.3.0 | [Mozilla Firefox ESR (lt) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.lt-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (lv) | 140.3.0 | [Mozilla Firefox ESR (lv) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.lv-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (mk) | 140.3.0 | [Mozilla Firefox ESR (mk) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.mk-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (mr) | 140.3.0 | [Mozilla Firefox ESR (mr) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.mr-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ms) | 140.3.0 | [Mozilla Firefox ESR (ms) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ms-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (my) | 140.3.0 | [Mozilla Firefox ESR (my) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.my-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (nb-NO) | 140.3.0 | [Mozilla Firefox ESR (nb-NO) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.nb-no-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ne-NP) | 140.3.0 | [Mozilla Firefox ESR (ne-NP) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ne-np-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (nl) | 140.3.0 | [Mozilla Firefox ESR (nl) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.nl-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (nn-NO) | 140.3.0 | [Mozilla Firefox ESR (nn-NO) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.nn-no-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (oc) | 140.3.0 | [Mozilla Firefox ESR (oc) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.oc-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (pa-IN) | 140.3.0 | [Mozilla Firefox ESR (pa-IN) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pa-in-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (pl) | 140.3.0 | [Mozilla Firefox ESR (pl) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pl-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (pt-BR) | 140.3.0 | [Mozilla Firefox ESR (pt-BR) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pt-br-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (pt-PT) | 140.3.0 | [Mozilla Firefox ESR (pt-PT) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pt-pt-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (rm) | 140.3.0 | [Mozilla Firefox ESR (rm) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.rm-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ro) | 140.3.0 | [Mozilla Firefox ESR (ro) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ro-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ru) | 140.3.0 | [Mozilla Firefox ESR (ru) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ru-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (sat) | 140.13.0 | [Mozilla Firefox ESR (sat) 140.13.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sat-140.13.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (sc) | 140.3.0 | [Mozilla Firefox ESR (sc) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sc-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (sco) | 140.3.0 | [Mozilla Firefox ESR (sco) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sco-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (si) | 140.3.0 | [Mozilla Firefox ESR (si) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.si-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (sk) | 140.3.0 | [Mozilla Firefox ESR (sk) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sk-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (sl) | 140.3.0 | [Mozilla Firefox ESR (sl) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sl-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (son) | 140.3.0 | [Mozilla Firefox ESR (son) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.son-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (sq) | 140.3.0 | [Mozilla Firefox ESR (sq) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sq-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (sr) | 140.3.0 | [Mozilla Firefox ESR (sr) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sr-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (sv-SE) | 140.3.0 | [Mozilla Firefox ESR (sv-SE) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sv-se-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (szl) | 140.3.0 | [Mozilla Firefox ESR (szl) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.szl-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ta) | 140.3.0 | [Mozilla Firefox ESR (ta) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ta-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (te) | 140.3.0 | [Mozilla Firefox ESR (te) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.te-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (tg) | 140.3.0 | [Mozilla Firefox ESR (tg) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.tg-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (th) | 140.3.0 | [Mozilla Firefox ESR (th) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.th-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (tl) | 140.3.0 | [Mozilla Firefox ESR (tl) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.tl-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (tr) | 140.3.0 | [Mozilla Firefox ESR (tr) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.tr-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (trs) | 140.3.0 | [Mozilla Firefox ESR (trs) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.trs-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (uk) | 140.3.0 | [Mozilla Firefox ESR (uk) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.uk-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (ur) | 140.3.0 | [Mozilla Firefox ESR (ur) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ur-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (uz) | 140.3.0 | [Mozilla Firefox ESR (uz) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.uz-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (vi) | 140.3.0 | [Mozilla Firefox ESR (vi) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.vi-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (xh) | 140.3.0 | [Mozilla Firefox ESR (xh) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.xh-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (zh-CN) | 140.3.0 | [Mozilla Firefox ESR (zh-CN) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.zh-cn-140.3.0.md) | Sep 16, 2025 |
| Windows apps | Mozilla Firefox ESR (zh-TW) | 140.3.0 | [Mozilla Firefox ESR (zh-TW) 140.3.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.zh-tw-140.3.0.md) | Sep 16, 2025 |
| Linux | firefox Ubuntu 20.04 LTS (focal) | 131.0.3+build1-0ubuntu0.20.04.1 | [firefox 131.0.3+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-131.0.3-build1-0ubuntu0.20.04.1.md) | Oct 14, 2024 |
| Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 131.0.3+build1-0ubuntu0.20.04.1 | [firefox-geckodriver 131.0.3+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-131.0.3-build1-0ubuntu0.20.04.1.md) | Oct 14, 2024 |
| Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 131.0.3+build1-0ubuntu0.20.04.1 | [firefox-mozsymbols 131.0.3+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-131.0.3-build1-0ubuntu0.20.04.1.md) | Oct 14, 2024 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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