# CVE-2025-2857: Incorrect handle could lead to sandbox escapes

CVE-2025-2857 is fixed in 204 products on 1 platform, first by Mozilla Firefox (en-US) 136.0.4, released March 4, 2025. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2025-2857
- Priority: Urgent
- CVSS: 10.0
- EPSS: 0.0198
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 27, 2025
- Weakness: CWE-668: Exposure of Resource to Wrong Sphere
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-2857

## Description

Following the recent Chrome sandbox escape (CVE-2025-2783), various Firefox developers identified a similar pattern in our IPC code. A compromised child process could cause the parent process to return an unintentionally powerful handle, leading to a sandbox escape.  The original vulnerability was being exploited in the wild.  *This only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 136.0.4, Firefox ESR 128.8.1, and Firefox ESR 115.21.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Firefox Developer Edition (ach) | 137.0 | [Firefox Developer Edition (ach) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ach-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (af) | 137.0 | [Firefox Developer Edition (af) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.af-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (an) | 137.0 | [Firefox Developer Edition (an) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.an-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (ar) | 137.0 | [Firefox Developer Edition (ar) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ar-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (ast) | 137.0 | [Firefox Developer Edition (ast) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ast-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (az) | 137.0 | [Firefox Developer Edition (az) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.az-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (be) | 137.0 | [Firefox Developer Edition (be) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.be-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (bg) | 137.0 | [Firefox Developer Edition (bg) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.bg-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (bn) | 137.0 | [Firefox Developer Edition (bn) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.bn-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (br) | 137.0 | [Firefox Developer Edition (br) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.br-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (bs) | 137.0 | [Firefox Developer Edition (bs) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.bs-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (ca) | 137.0 | [Firefox Developer Edition (ca) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ca-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (ca-valencia) | 137.0 | [Firefox Developer Edition (ca-valencia) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ca-valencia-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (cak) | 137.0 | [Firefox Developer Edition (cak) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.cak-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (cs) | 137.0 | [Firefox Developer Edition (cs) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.cs-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (cy) | 137.0 | [Firefox Developer Edition (cy) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.cy-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (da) | 137.0 | [Firefox Developer Edition (da) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.da-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (de) | 137.0 | [Firefox Developer Edition (de) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.de-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (dsb) | 137.0 | [Firefox Developer Edition (dsb) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.dsb-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (el) | 137.0 | [Firefox Developer Edition (el) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.el-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (en-CA) | 137.0 | [Firefox Developer Edition (en-CA) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.en-ca-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (en-GB) | 137.0 | [Firefox Developer Edition (en-GB) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.en-gb-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (en-US) | 137.0 | [Firefox Developer Edition (en-US) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (eo) | 137.0 | [Firefox Developer Edition (eo) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.eo-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (es-AR) | 137.0 | [Firefox Developer Edition (es-AR) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.es-ar-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (es-CL) | 137.0 | [Firefox Developer Edition (es-CL) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.es-cl-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (es-ES) | 137.0 | [Firefox Developer Edition (es-ES) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.es-es-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (es-MX) | 137.0 | [Firefox Developer Edition (es-MX) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.es-mx-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (et) | 137.0 | [Firefox Developer Edition (et) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.et-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (eu) | 137.0 | [Firefox Developer Edition (eu) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.eu-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (fa) | 137.0 | [Firefox Developer Edition (fa) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.fa-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (ff) | 137.0 | [Firefox Developer Edition (ff) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ff-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (fi) | 137.0 | [Firefox Developer Edition (fi) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.fi-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (fr) | 137.0 | [Firefox Developer Edition (fr) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.fr-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (fur) | 137.0 | [Firefox Developer Edition (fur) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.fur-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (fy-NL) | 137.0 | [Firefox Developer Edition (fy-NL) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.fy-nl-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (ga-IE) | 137.0 | [Firefox Developer Edition (ga-IE) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ga-ie-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (gd) | 137.0 | [Firefox Developer Edition (gd) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.gd-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (gl) | 137.0 | [Firefox Developer Edition (gl) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.gl-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (gn) | 137.0 | [Firefox Developer Edition (gn) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.gn-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (gu-IN) | 137.0 | [Firefox Developer Edition (gu-IN) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.gu-in-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (he) | 137.0 | [Firefox Developer Edition (he) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.he-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (hi-IN) | 137.0 | [Firefox Developer Edition (hi-IN) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.hi-in-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (hr) | 137.0 | [Firefox Developer Edition (hr) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.hr-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (hsb) | 137.0 | [Firefox Developer Edition (hsb) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.hsb-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (hu) | 137.0 | [Firefox Developer Edition (hu) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.hu-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (hy-AM) | 137.0 | [Firefox Developer Edition (hy-AM) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.hy-am-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (ia) | 137.0 | [Firefox Developer Edition (ia) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ia-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (id) | 137.0 | [Firefox Developer Edition (id) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.id-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (is) | 137.0 | [Firefox Developer Edition (is) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.is-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (it) | 137.0 | [Firefox Developer Edition (it) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.it-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (ja) | 137.0 | [Firefox Developer Edition (ja) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ja-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (ka) | 137.0 | [Firefox Developer Edition (ka) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ka-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (kab) | 137.0 | [Firefox Developer Edition (kab) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.kab-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (kk) | 137.0 | [Firefox Developer Edition (kk) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.kk-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (km) | 137.0 | [Firefox Developer Edition (km) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.km-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (kn) | 137.0 | [Firefox Developer Edition (kn) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.kn-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (ko) | 137.0 | [Firefox Developer Edition (ko) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ko-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (lij) | 137.0 | [Firefox Developer Edition (lij) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.lij-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (lt) | 137.0 | [Firefox Developer Edition (lt) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.lt-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (lv) | 137.0 | [Firefox Developer Edition (lv) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.lv-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (mk) | 137.0 | [Firefox Developer Edition (mk) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.mk-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (mr) | 137.0 | [Firefox Developer Edition (mr) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.mr-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (ms) | 137.0 | [Firefox Developer Edition (ms) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ms-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (my) | 137.0 | [Firefox Developer Edition (my) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.my-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (nb-NO) | 137.0 | [Firefox Developer Edition (nb-NO) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.nb-no-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (ne-NP) | 137.0 | [Firefox Developer Edition (ne-NP) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ne-np-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (nl) | 137.0 | [Firefox Developer Edition (nl) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.nl-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (nn-NO) | 137.0 | [Firefox Developer Edition (nn-NO) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.nn-no-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (oc) | 137.0 | [Firefox Developer Edition (oc) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.oc-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (pa-IN) | 137.0 | [Firefox Developer Edition (pa-IN) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.pa-in-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (pl) | 137.0 | [Firefox Developer Edition (pl) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.pl-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (pt-BR) | 137.0 | [Firefox Developer Edition (pt-BR) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.pt-br-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (pt-PT) | 137.0 | [Firefox Developer Edition (pt-PT) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.pt-pt-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (rm) | 137.0 | [Firefox Developer Edition (rm) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.rm-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (ro) | 137.0 | [Firefox Developer Edition (ro) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ro-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (ru) | 137.0 | [Firefox Developer Edition (ru) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ru-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (sc) | 137.0 | [Firefox Developer Edition (sc) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sc-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (sco) | 137.0 | [Firefox Developer Edition (sco) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sco-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (si) | 137.0 | [Firefox Developer Edition (si) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.si-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (sk) | 137.0 | [Firefox Developer Edition (sk) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sk-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (sl) | 137.0 | [Firefox Developer Edition (sl) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sl-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (son) | 137.0 | [Firefox Developer Edition (son) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.son-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (sq) | 137.0 | [Firefox Developer Edition (sq) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sq-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (sr) | 137.0 | [Firefox Developer Edition (sr) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sr-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (sv-SE) | 137.0 | [Firefox Developer Edition (sv-SE) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sv-se-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (szl) | 137.0 | [Firefox Developer Edition (szl) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.szl-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (ta) | 137.0 | [Firefox Developer Edition (ta) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ta-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (te) | 137.0 | [Firefox Developer Edition (te) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.te-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (tg) | 137.0 | [Firefox Developer Edition (tg) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.tg-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (th) | 137.0 | [Firefox Developer Edition (th) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.th-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (tl) | 137.0 | [Firefox Developer Edition (tl) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.tl-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (tr) | 137.0 | [Firefox Developer Edition (tr) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.tr-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (trs) | 137.0 | [Firefox Developer Edition (trs) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.trs-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (uk) | 137.0 | [Firefox Developer Edition (uk) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.uk-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (ur) | 137.0 | [Firefox Developer Edition (ur) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ur-137.0.md) | Mar 19, 2025 |
| Windows apps | Firefox Developer Edition (uz) | 137.0 | [Firefox Developer Edition (uz) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.uz-137.0.md) | Mar 17, 2025 |
| Windows apps | Firefox Developer Edition (vi) | 137.0 | [Firefox Developer Edition (vi) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.vi-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (xh) | 137.0 | [Firefox Developer Edition (xh) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.xh-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (zh-CN) | 137.0 | [Firefox Developer Edition (zh-CN) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.zh-cn-137.0.md) | Mar 12, 2025 |
| Windows apps | Firefox Developer Edition (zh-TW) | 137.0 | [Firefox Developer Edition (zh-TW) 137.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.zh-tw-137.0.md) | Mar 12, 2025 |
| Windows apps | Mozilla Firefox (en-US) | 136.0.4 | [Mozilla Firefox (en-US) 136.0.4](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-136.0.4.md) | Mar 4, 2025 |
| 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 |

---

Data as of 2026-11-08T06:59:42Z 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

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.