# CVE-2025-5270: SNI was sometimes unencrypted

CVE-2025-5270 is fixed in 310 products on 2 platforms, first by Firefox Developer Edition (ach) 139.0, released May 18, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2025-5270
- Priority: High
- CVSS: 7.5 (Medium)
- EPSS: 0.0029
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 27, 2025
- Weakness: CWE-319: Cleartext Transmission of Sensitive Information
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-5270

## Description

In certain cases, SNI could have been sent unencrypted even when encrypted DNS was enabled. This vulnerability was fixed in Firefox 139 and Thunderbird 139.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Firefox Developer Edition (ach) | 139.0 | [Firefox Developer Edition (ach) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ach-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (af) | 139.0 | [Firefox Developer Edition (af) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.af-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (an) | 139.0 | [Firefox Developer Edition (an) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.an-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ar) | 139.0 | [Firefox Developer Edition (ar) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ar-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ast) | 139.0 | [Firefox Developer Edition (ast) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ast-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (az) | 139.0 | [Firefox Developer Edition (az) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.az-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (be) | 139.0 | [Firefox Developer Edition (be) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.be-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (bg) | 139.0 | [Firefox Developer Edition (bg) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.bg-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (bn) | 139.0 | [Firefox Developer Edition (bn) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.bn-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (br) | 139.0 | [Firefox Developer Edition (br) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.br-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (bs) | 139.0 | [Firefox Developer Edition (bs) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.bs-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ca) | 139.0 | [Firefox Developer Edition (ca) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ca-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ca-valencia) | 139.0 | [Firefox Developer Edition (ca-valencia) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ca-valencia-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (cak) | 139.0 | [Firefox Developer Edition (cak) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.cak-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (cs) | 139.0 | [Firefox Developer Edition (cs) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.cs-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (cy) | 139.0 | [Firefox Developer Edition (cy) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.cy-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (da) | 139.0 | [Firefox Developer Edition (da) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.da-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (de) | 139.0 | [Firefox Developer Edition (de) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.de-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (dsb) | 139.0 | [Firefox Developer Edition (dsb) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.dsb-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (el) | 139.0 | [Firefox Developer Edition (el) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.el-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (en-CA) | 139.0 | [Firefox Developer Edition (en-CA) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.en-ca-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (en-GB) | 139.0 | [Firefox Developer Edition (en-GB) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.en-gb-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (en-US) | 139.0 | [Firefox Developer Edition (en-US) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (eo) | 139.0 | [Firefox Developer Edition (eo) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.eo-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (es-AR) | 139.0 | [Firefox Developer Edition (es-AR) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.es-ar-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (es-CL) | 139.0 | [Firefox Developer Edition (es-CL) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.es-cl-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (es-ES) | 139.0 | [Firefox Developer Edition (es-ES) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.es-es-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (es-MX) | 139.0 | [Firefox Developer Edition (es-MX) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.es-mx-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (et) | 139.0 | [Firefox Developer Edition (et) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.et-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (eu) | 139.0 | [Firefox Developer Edition (eu) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.eu-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (fa) | 139.0 | [Firefox Developer Edition (fa) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.fa-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ff) | 139.0 | [Firefox Developer Edition (ff) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ff-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (fi) | 139.0 | [Firefox Developer Edition (fi) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.fi-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (fr) | 139.0 | [Firefox Developer Edition (fr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.fr-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (fur) | 139.0 | [Firefox Developer Edition (fur) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.fur-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (fy-NL) | 139.0 | [Firefox Developer Edition (fy-NL) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.fy-nl-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ga-IE) | 139.0 | [Firefox Developer Edition (ga-IE) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ga-ie-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (gd) | 139.0 | [Firefox Developer Edition (gd) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.gd-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (gl) | 139.0 | [Firefox Developer Edition (gl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.gl-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (gn) | 139.0 | [Firefox Developer Edition (gn) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.gn-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (gu-IN) | 139.0 | [Firefox Developer Edition (gu-IN) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.gu-in-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (he) | 139.0 | [Firefox Developer Edition (he) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.he-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (hi-IN) | 139.0 | [Firefox Developer Edition (hi-IN) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.hi-in-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (hr) | 139.0 | [Firefox Developer Edition (hr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.hr-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (hsb) | 139.0 | [Firefox Developer Edition (hsb) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.hsb-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (hu) | 139.0 | [Firefox Developer Edition (hu) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.hu-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (hy-AM) | 139.0 | [Firefox Developer Edition (hy-AM) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.hy-am-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ia) | 139.0 | [Firefox Developer Edition (ia) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ia-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (id) | 139.0 | [Firefox Developer Edition (id) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.id-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (is) | 139.0 | [Firefox Developer Edition (is) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.is-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (it) | 139.0 | [Firefox Developer Edition (it) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.it-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ja) | 139.0 | [Firefox Developer Edition (ja) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ja-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ka) | 139.0 | [Firefox Developer Edition (ka) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ka-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (kab) | 139.0 | [Firefox Developer Edition (kab) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.kab-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (kk) | 139.0 | [Firefox Developer Edition (kk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.kk-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (km) | 139.0 | [Firefox Developer Edition (km) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.km-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (kn) | 139.0 | [Firefox Developer Edition (kn) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.kn-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ko) | 139.0 | [Firefox Developer Edition (ko) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ko-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (lij) | 139.0 | [Firefox Developer Edition (lij) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.lij-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (lt) | 139.0 | [Firefox Developer Edition (lt) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.lt-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (lv) | 139.0 | [Firefox Developer Edition (lv) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.lv-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (mk) | 139.0 | [Firefox Developer Edition (mk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.mk-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (mr) | 139.0 | [Firefox Developer Edition (mr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.mr-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ms) | 139.0 | [Firefox Developer Edition (ms) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ms-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (my) | 139.0 | [Firefox Developer Edition (my) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.my-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (nb-NO) | 139.0 | [Firefox Developer Edition (nb-NO) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.nb-no-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ne-NP) | 139.0 | [Firefox Developer Edition (ne-NP) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ne-np-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (nl) | 139.0 | [Firefox Developer Edition (nl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.nl-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (nn-NO) | 139.0 | [Firefox Developer Edition (nn-NO) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.nn-no-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (oc) | 139.0 | [Firefox Developer Edition (oc) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.oc-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (pa-IN) | 139.0 | [Firefox Developer Edition (pa-IN) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.pa-in-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (pl) | 139.0 | [Firefox Developer Edition (pl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.pl-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (pt-BR) | 139.0 | [Firefox Developer Edition (pt-BR) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.pt-br-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (pt-PT) | 139.0 | [Firefox Developer Edition (pt-PT) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.pt-pt-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (rm) | 139.0 | [Firefox Developer Edition (rm) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.rm-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ro) | 139.0 | [Firefox Developer Edition (ro) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ro-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ru) | 139.0 | [Firefox Developer Edition (ru) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ru-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (sc) | 139.0 | [Firefox Developer Edition (sc) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sc-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (sco) | 139.0 | [Firefox Developer Edition (sco) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sco-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (si) | 139.0 | [Firefox Developer Edition (si) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.si-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (sk) | 139.0 | [Firefox Developer Edition (sk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sk-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (sl) | 139.0 | [Firefox Developer Edition (sl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sl-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (son) | 139.0 | [Firefox Developer Edition (son) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.son-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (sq) | 139.0 | [Firefox Developer Edition (sq) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sq-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (sr) | 139.0 | [Firefox Developer Edition (sr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sr-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (sv-SE) | 139.0 | [Firefox Developer Edition (sv-SE) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.sv-se-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (szl) | 139.0 | [Firefox Developer Edition (szl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.szl-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ta) | 139.0 | [Firefox Developer Edition (ta) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ta-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (te) | 139.0 | [Firefox Developer Edition (te) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.te-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (tg) | 139.0 | [Firefox Developer Edition (tg) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.tg-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (th) | 139.0 | [Firefox Developer Edition (th) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.th-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (tl) | 139.0 | [Firefox Developer Edition (tl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.tl-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (tr) | 139.0 | [Firefox Developer Edition (tr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.tr-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (trs) | 139.0 | [Firefox Developer Edition (trs) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.trs-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (uk) | 139.0 | [Firefox Developer Edition (uk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.uk-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (ur) | 139.0 | [Firefox Developer Edition (ur) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.ur-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (uz) | 139.0 | [Firefox Developer Edition (uz) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.uz-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (vi) | 139.0 | [Firefox Developer Edition (vi) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.vi-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (xh) | 139.0 | [Firefox Developer Edition (xh) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.xh-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (zh-CN) | 139.0 | [Firefox Developer Edition (zh-CN) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.zh-cn-139.0.md) | May 18, 2025 |
| Windows apps | Firefox Developer Edition (zh-TW) | 139.0 | [Firefox Developer Edition (zh-TW) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition.zh-tw-139.0.md) | May 18, 2025 |
| Windows apps | Mozilla Firefox (ach) | 139.0 | [Mozilla Firefox (ach) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ach-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (af) | 139.0 | [Mozilla Firefox (af) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.af-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (an) | 139.0 | [Mozilla Firefox (an) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.an-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ar) | 139.0 | [Mozilla Firefox (ar) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ar-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ast) | 139.0 | [Mozilla Firefox (ast) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ast-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (az) | 139.0 | [Mozilla Firefox (az) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.az-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (be) | 139.0 | [Mozilla Firefox (be) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.be-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (bg) | 139.0 | [Mozilla Firefox (bg) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bg-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (bn) | 139.0 | [Mozilla Firefox (bn) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bn-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (br) | 139.0 | [Mozilla Firefox (br) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.br-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (bs) | 139.0 | [Mozilla Firefox (bs) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bs-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ca) | 139.0 | [Mozilla Firefox (ca) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ca-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ca-valencia) | 139.0 | [Mozilla Firefox (ca-valencia) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ca-valencia-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (cak) | 139.0 | [Mozilla Firefox (cak) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cak-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (cs) | 139.0 | [Mozilla Firefox (cs) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cs-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (cy) | 139.0 | [Mozilla Firefox (cy) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cy-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (da) | 139.0 | [Mozilla Firefox (da) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.da-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (de) | 139.0 | [Mozilla Firefox (de) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.de-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (dsb) | 139.0 | [Mozilla Firefox (dsb) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.dsb-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (el) | 139.0 | [Mozilla Firefox (el) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.el-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (en-CA) | 139.0 | [Mozilla Firefox (en-CA) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.en-ca-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (en-GB) | 139.0 | [Mozilla Firefox (en-GB) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.en-gb-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (en-US) | 139.0 | [Mozilla Firefox (en-US) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (eo) | 139.0 | [Mozilla Firefox (eo) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.eo-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (es-AR) | 139.0 | [Mozilla Firefox (es-AR) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-ar-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (es-CL) | 139.0 | [Mozilla Firefox (es-CL) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-cl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (es-ES) | 139.0 | [Mozilla Firefox (es-ES) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-es-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (es-MX) | 139.0 | [Mozilla Firefox (es-MX) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-mx-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (et) | 139.0 | [Mozilla Firefox (et) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.et-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (eu) | 139.0 | [Mozilla Firefox (eu) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.eu-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (fa) | 139.0 | [Mozilla Firefox (fa) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fa-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ff) | 139.0 | [Mozilla Firefox (ff) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ff-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (fi) | 139.0 | [Mozilla Firefox (fi) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fi-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (fr) | 139.0 | [Mozilla Firefox (fr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fr-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (fur) | 139.0 | [Mozilla Firefox (fur) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fur-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (fy-NL) | 139.0 | [Mozilla Firefox (fy-NL) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fy-nl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ga-IE) | 139.0 | [Mozilla Firefox (ga-IE) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ga-ie-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (gd) | 139.0 | [Mozilla Firefox (gd) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gd-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (gl) | 139.0 | [Mozilla Firefox (gl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (gn) | 139.0 | [Mozilla Firefox (gn) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gn-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (gu-IN) | 139.0 | [Mozilla Firefox (gu-IN) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gu-in-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (he) | 139.0 | [Mozilla Firefox (he) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.he-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (hi-IN) | 139.0 | [Mozilla Firefox (hi-IN) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hi-in-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (hr) | 139.0 | [Mozilla Firefox (hr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hr-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (hsb) | 139.0 | [Mozilla Firefox (hsb) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hsb-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (hu) | 139.0 | [Mozilla Firefox (hu) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hu-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (hy-AM) | 139.0 | [Mozilla Firefox (hy-AM) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hy-am-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ia) | 139.0 | [Mozilla Firefox (ia) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ia-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (id) | 139.0 | [Mozilla Firefox (id) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.id-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (is) | 139.0 | [Mozilla Firefox (is) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.is-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (it) | 139.0 | [Mozilla Firefox (it) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.it-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ja) | 139.0 | [Mozilla Firefox (ja) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ja-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ka) | 139.0 | [Mozilla Firefox (ka) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ka-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (kab) | 139.0 | [Mozilla Firefox (kab) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kab-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (kk) | 139.0 | [Mozilla Firefox (kk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kk-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (km) | 139.0 | [Mozilla Firefox (km) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.km-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (kn) | 139.0 | [Mozilla Firefox (kn) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kn-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ko) | 139.0 | [Mozilla Firefox (ko) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ko-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (lij) | 139.0 | [Mozilla Firefox (lij) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lij-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (lt) | 139.0 | [Mozilla Firefox (lt) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lt-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (lv) | 139.0 | [Mozilla Firefox (lv) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lv-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (mk) | 139.0 | [Mozilla Firefox (mk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.mk-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (mr) | 139.0 | [Mozilla Firefox (mr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.mr-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ms) | 139.0 | [Mozilla Firefox (ms) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ms-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (my) | 139.0 | [Mozilla Firefox (my) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.my-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (nb-NO) | 139.0 | [Mozilla Firefox (nb-NO) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nb-no-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ne-NP) | 139.0 | [Mozilla Firefox (ne-NP) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ne-np-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (nl) | 139.0 | [Mozilla Firefox (nl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (nn-NO) | 139.0 | [Mozilla Firefox (nn-NO) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nn-no-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (oc) | 139.0 | [Mozilla Firefox (oc) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.oc-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (pa-IN) | 139.0 | [Mozilla Firefox (pa-IN) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pa-in-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (pl) | 139.0 | [Mozilla Firefox (pl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (pt-BR) | 139.0 | [Mozilla Firefox (pt-BR) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pt-br-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (pt-PT) | 139.0 | [Mozilla Firefox (pt-PT) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pt-pt-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (rm) | 139.0 | [Mozilla Firefox (rm) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.rm-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ro) | 139.0 | [Mozilla Firefox (ro) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ro-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ru) | 139.0 | [Mozilla Firefox (ru) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ru-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (sc) | 139.0 | [Mozilla Firefox (sc) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sc-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (sco) | 139.0 | [Mozilla Firefox (sco) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sco-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (si) | 139.0 | [Mozilla Firefox (si) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.si-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (sk) | 139.0 | [Mozilla Firefox (sk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sk-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (sl) | 139.0 | [Mozilla Firefox (sl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (son) | 139.0 | [Mozilla Firefox (son) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.son-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (sq) | 139.0 | [Mozilla Firefox (sq) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sq-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (sr) | 139.0 | [Mozilla Firefox (sr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sr-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (sv-SE) | 139.0 | [Mozilla Firefox (sv-SE) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sv-se-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (szl) | 139.0 | [Mozilla Firefox (szl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.szl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ta) | 139.0 | [Mozilla Firefox (ta) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ta-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (te) | 139.0 | [Mozilla Firefox (te) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.te-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (tg) | 139.0 | [Mozilla Firefox (tg) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tg-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (th) | 139.0 | [Mozilla Firefox (th) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.th-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (tl) | 139.0 | [Mozilla Firefox (tl) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tl-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (tr) | 139.0 | [Mozilla Firefox (tr) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tr-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (trs) | 139.0 | [Mozilla Firefox (trs) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.trs-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (uk) | 139.0 | [Mozilla Firefox (uk) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.uk-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (ur) | 139.0 | [Mozilla Firefox (ur) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ur-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (uz) | 139.0 | [Mozilla Firefox (uz) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.uz-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (vi) | 139.0 | [Mozilla Firefox (vi) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.vi-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (xh) | 139.0 | [Mozilla Firefox (xh) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.xh-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (zh-CN) | 139.0 | [Mozilla Firefox (zh-CN) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.zh-cn-139.0.md) | May 27, 2025 |
| Windows apps | Mozilla Firefox (zh-TW) | 139.0 | [Mozilla Firefox (zh-TW) 139.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.zh-tw-139.0.md) | May 27, 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 |
| Linux | thunderbird Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | [thunderbird 1:140.7.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-1-140.7.1-build1-0ubuntu0.22.04.1.md) | Jan 28, 2026 |
| Linux | thunderbird-gnome-support Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | [thunderbird-gnome-support 1:140.7.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-gnome-support-1-140.7.1-build1-0ubuntu0.22.04.1.md) | Jan 28, 2026 |
| Linux | thunderbird-mozsymbols Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | [thunderbird-mozsymbols 1:140.7.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-mozsymbols-1-140.7.1-build1-0ubuntu0.22.04.1.md) | Jan 28, 2026 |
| Linux | xul-ext-calendar-timezones Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | [xul-ext-calendar-timezones 1:140.7.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-calendar-timezones-1-140.7.1-build1-0ubuntu0.22.04.1.md) | Jan 28, 2026 |
| Linux | xul-ext-gdata-provider Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | [xul-ext-gdata-provider 1:140.7.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-gdata-provider-1-140.7.1-build1-0ubuntu0.22.04.1.md) | Jan 28, 2026 |
| Linux | xul-ext-lightning Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | [xul-ext-lightning 1:140.7.1+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-lightning-1-140.7.1-build1-0ubuntu0.22.04.1.md) | Jan 28, 2026 |

---

Data as of 2026-11-08T19:12:23Z 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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