# CVE-2026-16405: Information disclosure in the Networking: WebSockets component

CVE-2026-16405 is fixed in 217 products on 3 platforms, first by Mozilla Firefox 153.0, released July 15, 2026. 100 other affected products have no fix yet. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-16405
- Priority: High
- CVSS: 8.8 (high)
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 21, 2026
- Weakness: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-16405

## Description

Information disclosure in the Networking: WebSockets component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Firefox Developer Edition (en-US) | 156.0 | [Firefox Developer Edition (en-US) 156.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.developeredition-156.0.md) | Sep 2, 2026 |
| Windows apps | Mozilla Firefox (ach) | 153.0 | [Mozilla Firefox (ach) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ach-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (af) | 153.0 | [Mozilla Firefox (af) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.af-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (an) | 153.0 | [Mozilla Firefox (an) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.an-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ar) | 153.0 | [Mozilla Firefox (ar) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ar-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ast) | 153.0 | [Mozilla Firefox (ast) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ast-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (az) | 153.0 | [Mozilla Firefox (az) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.az-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (be) | 153.0 | [Mozilla Firefox (be) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.be-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (bg) | 153.0 | [Mozilla Firefox (bg) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bg-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (bn) | 153.0 | [Mozilla Firefox (bn) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bn-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (br) | 153.0 | [Mozilla Firefox (br) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.br-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (bs) | 153.0 | [Mozilla Firefox (bs) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bs-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ca) | 153.0 | [Mozilla Firefox (ca) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ca-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ca-valencia) | 153.0 | [Mozilla Firefox (ca-valencia) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ca-valencia-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (cak) | 153.0 | [Mozilla Firefox (cak) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cak-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (cs) | 153.0 | [Mozilla Firefox (cs) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cs-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (cy) | 153.0 | [Mozilla Firefox (cy) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cy-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (da) | 153.0 | [Mozilla Firefox (da) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.da-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (de) | 153.0 | [Mozilla Firefox (de) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.de-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (dsb) | 153.0 | [Mozilla Firefox (dsb) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.dsb-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (el) | 153.0 | [Mozilla Firefox (el) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.el-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (en-CA) | 153.0 | [Mozilla Firefox (en-CA) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.en-ca-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (en-GB) | 153.0 | [Mozilla Firefox (en-GB) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.en-gb-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (en-US) | 153.0 | [Mozilla Firefox (en-US) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (eo) | 153.0 | [Mozilla Firefox (eo) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.eo-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (es-AR) | 153.0 | [Mozilla Firefox (es-AR) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-ar-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (es-CL) | 153.0 | [Mozilla Firefox (es-CL) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-cl-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (es-ES) | 153.0 | [Mozilla Firefox (es-ES) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-es-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (es-MX) | 153.0 | [Mozilla Firefox (es-MX) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-mx-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (et) | 153.0 | [Mozilla Firefox (et) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.et-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (eu) | 153.0 | [Mozilla Firefox (eu) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.eu-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (fa) | 153.0 | [Mozilla Firefox (fa) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fa-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ff) | 153.0 | [Mozilla Firefox (ff) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ff-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (fi) | 153.0 | [Mozilla Firefox (fi) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fi-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (fr) | 153.0 | [Mozilla Firefox (fr) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fr-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (fur) | 153.0 | [Mozilla Firefox (fur) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fur-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (fy-NL) | 153.0 | [Mozilla Firefox (fy-NL) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fy-nl-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ga-IE) | 153.0 | [Mozilla Firefox (ga-IE) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ga-ie-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (gd) | 153.0 | [Mozilla Firefox (gd) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gd-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (gl) | 153.0 | [Mozilla Firefox (gl) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gl-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (gn) | 153.0 | [Mozilla Firefox (gn) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gn-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (gu-IN) | 153.0 | [Mozilla Firefox (gu-IN) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gu-in-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (he) | 153.0 | [Mozilla Firefox (he) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.he-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (hi-IN) | 153.0 | [Mozilla Firefox (hi-IN) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hi-in-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (hr) | 153.0 | [Mozilla Firefox (hr) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hr-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (hsb) | 153.0 | [Mozilla Firefox (hsb) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hsb-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (hu) | 153.0 | [Mozilla Firefox (hu) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hu-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (hy-AM) | 153.0 | [Mozilla Firefox (hy-AM) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hy-am-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ia) | 153.0 | [Mozilla Firefox (ia) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ia-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (id) | 153.0 | [Mozilla Firefox (id) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.id-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (is) | 153.0 | [Mozilla Firefox (is) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.is-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (it) | 153.0 | [Mozilla Firefox (it) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.it-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ja) | 153.0 | [Mozilla Firefox (ja) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ja-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ka) | 153.0 | [Mozilla Firefox (ka) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ka-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (kab) | 153.0 | [Mozilla Firefox (kab) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kab-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (kk) | 153.0 | [Mozilla Firefox (kk) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kk-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (km) | 153.0 | [Mozilla Firefox (km) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.km-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (kn) | 153.0 | [Mozilla Firefox (kn) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kn-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ko) | 153.0 | [Mozilla Firefox (ko) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ko-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (lij) | 153.0 | [Mozilla Firefox (lij) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lij-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (lt) | 153.0 | [Mozilla Firefox (lt) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lt-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (lv) | 153.0 | [Mozilla Firefox (lv) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lv-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (mk) | 153.0 | [Mozilla Firefox (mk) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.mk-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (mr) | 153.0 | [Mozilla Firefox (mr) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.mr-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ms) | 153.0 | [Mozilla Firefox (ms) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ms-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (my) | 153.0 | [Mozilla Firefox (my) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.my-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (nb-NO) | 153.0 | [Mozilla Firefox (nb-NO) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nb-no-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ne-NP) | 153.0 | [Mozilla Firefox (ne-NP) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ne-np-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (nl) | 153.0 | [Mozilla Firefox (nl) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nl-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (nn-NO) | 153.0 | [Mozilla Firefox (nn-NO) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nn-no-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (oc) | 153.0 | [Mozilla Firefox (oc) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.oc-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (pa-IN) | 153.0 | [Mozilla Firefox (pa-IN) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pa-in-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (pl) | 153.0 | [Mozilla Firefox (pl) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pl-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (pt-BR) | 153.0 | [Mozilla Firefox (pt-BR) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pt-br-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (pt-PT) | 153.0 | [Mozilla Firefox (pt-PT) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pt-pt-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (rm) | 153.0 | [Mozilla Firefox (rm) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.rm-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ro) | 153.0 | [Mozilla Firefox (ro) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ro-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ru) | 153.0 | [Mozilla Firefox (ru) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ru-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (sc) | 153.0 | [Mozilla Firefox (sc) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sc-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (sco) | 153.0 | [Mozilla Firefox (sco) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sco-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (si) | 153.0 | [Mozilla Firefox (si) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.si-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (sk) | 153.0 | [Mozilla Firefox (sk) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sk-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (sl) | 153.0 | [Mozilla Firefox (sl) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sl-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (son) | 153.0 | [Mozilla Firefox (son) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.son-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (sq) | 153.0 | [Mozilla Firefox (sq) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sq-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (sr) | 153.0 | [Mozilla Firefox (sr) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sr-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (sv-SE) | 153.0 | [Mozilla Firefox (sv-SE) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sv-se-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (szl) | 153.0 | [Mozilla Firefox (szl) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.szl-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ta) | 153.0 | [Mozilla Firefox (ta) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ta-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (te) | 153.0 | [Mozilla Firefox (te) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.te-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (tg) | 153.0 | [Mozilla Firefox (tg) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tg-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (th) | 153.0 | [Mozilla Firefox (th) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.th-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (tl) | 153.0 | [Mozilla Firefox (tl) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tl-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (tr) | 153.0 | [Mozilla Firefox (tr) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tr-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (trs) | 153.0 | [Mozilla Firefox (trs) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.trs-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (uk) | 153.0 | [Mozilla Firefox (uk) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.uk-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (ur) | 153.0 | [Mozilla Firefox (ur) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ur-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (uz) | 153.0 | [Mozilla Firefox (uz) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.uz-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (vi) | 153.0 | [Mozilla Firefox (vi) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.vi-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (xh) | 153.0 | [Mozilla Firefox (xh) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.xh-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (zh-CN) | 153.0 | [Mozilla Firefox (zh-CN) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.zh-cn-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox (zh-TW) | 153.0 | [Mozilla Firefox (zh-TW) 153.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.zh-tw-153.0.md) | Jul 21, 2026 |
| Windows apps | Mozilla Firefox ESR (ach) | 153.0.0 | [Mozilla Firefox ESR (ach) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ach-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (af) | 153.0.0 | [Mozilla Firefox ESR (af) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.af-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (an) | 153.0.0 | [Mozilla Firefox ESR (an) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.an-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ar) | 153.0.0 | [Mozilla Firefox ESR (ar) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ar-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ast) | 153.0.0 | [Mozilla Firefox ESR (ast) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ast-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (az) | 153.0.0 | [Mozilla Firefox ESR (az) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.az-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (be) | 153.0.0 | [Mozilla Firefox ESR (be) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.be-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (bg) | 153.0.0 | [Mozilla Firefox ESR (bg) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.bg-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (bn) | 153.0.0 | [Mozilla Firefox ESR (bn) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.bn-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (br) | 153.0.0 | [Mozilla Firefox ESR (br) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.br-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (bs) | 153.0.0 | [Mozilla Firefox ESR (bs) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.bs-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ca) | 153.0.0 | [Mozilla Firefox ESR (ca) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ca-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ca-valencia) | 153.0.0 | [Mozilla Firefox ESR (ca-valencia) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ca-valencia-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (cak) | 153.0.0 | [Mozilla Firefox ESR (cak) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.cak-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (cs) | 153.0.0 | [Mozilla Firefox ESR (cs) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.cs-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (cy) | 153.0.0 | [Mozilla Firefox ESR (cy) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.cy-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (da) | 153.0.0 | [Mozilla Firefox ESR (da) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.da-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (de) | 153.0.0 | [Mozilla Firefox ESR (de) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.de-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (dsb) | 153.0.0 | [Mozilla Firefox ESR (dsb) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.dsb-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (el) | 153.0.0 | [Mozilla Firefox ESR (el) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.el-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (en-CA) | 153.0.0 | [Mozilla Firefox ESR (en-CA) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.en-ca-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (en-GB) | 153.0.0 | [Mozilla Firefox ESR (en-GB) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.en-gb-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (en-US) | 153.0.0 | [Mozilla Firefox ESR (en-US) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (eo) | 153.0.0 | [Mozilla Firefox ESR (eo) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.eo-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (es-AR) | 153.0.0 | [Mozilla Firefox ESR (es-AR) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-ar-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (es-CL) | 153.0.0 | [Mozilla Firefox ESR (es-CL) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-cl-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (es-ES) | 153.0.0 | [Mozilla Firefox ESR (es-ES) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-es-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (es-MX) | 153.0.0 | [Mozilla Firefox ESR (es-MX) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-mx-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (et) | 153.0.0 | [Mozilla Firefox ESR (et) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.et-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (eu) | 153.0.0 | [Mozilla Firefox ESR (eu) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.eu-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (fa) | 153.0.0 | [Mozilla Firefox ESR (fa) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fa-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ff) | 153.0.0 | [Mozilla Firefox ESR (ff) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ff-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (fi) | 153.0.0 | [Mozilla Firefox ESR (fi) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fi-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (fr) | 153.0.0 | [Mozilla Firefox ESR (fr) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fr-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (fur) | 153.0.0 | [Mozilla Firefox ESR (fur) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fur-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (fy-NL) | 153.0.0 | [Mozilla Firefox ESR (fy-NL) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fy-nl-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ga-IE) | 153.0.0 | [Mozilla Firefox ESR (ga-IE) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ga-ie-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (gd) | 153.0.0 | [Mozilla Firefox ESR (gd) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gd-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (gl) | 153.0.0 | [Mozilla Firefox ESR (gl) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gl-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (gn) | 153.0.0 | [Mozilla Firefox ESR (gn) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gn-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (gu-IN) | 153.0.0 | [Mozilla Firefox ESR (gu-IN) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gu-in-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (he) | 153.0.0 | [Mozilla Firefox ESR (he) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.he-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (hi-IN) | 153.0.0 | [Mozilla Firefox ESR (hi-IN) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hi-in-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (hr) | 153.0.0 | [Mozilla Firefox ESR (hr) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hr-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (hsb) | 153.0.0 | [Mozilla Firefox ESR (hsb) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hsb-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (hu) | 153.0.0 | [Mozilla Firefox ESR (hu) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hu-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (hy-AM) | 153.0.0 | [Mozilla Firefox ESR (hy-AM) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hy-am-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ia) | 153.0.0 | [Mozilla Firefox ESR (ia) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ia-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (id) | 153.0.0 | [Mozilla Firefox ESR (id) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.id-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (is) | 153.0.0 | [Mozilla Firefox ESR (is) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.is-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (it) | 153.0.0 | [Mozilla Firefox ESR (it) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.it-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ja) | 153.0.0 | [Mozilla Firefox ESR (ja) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ja-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ka) | 153.0.0 | [Mozilla Firefox ESR (ka) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ka-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (kab) | 153.0.0 | [Mozilla Firefox ESR (kab) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.kab-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (kk) | 153.0.0 | [Mozilla Firefox ESR (kk) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.kk-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (km) | 153.0.0 | [Mozilla Firefox ESR (km) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.km-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (kn) | 153.0.0 | [Mozilla Firefox ESR (kn) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.kn-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ko) | 153.0.0 | [Mozilla Firefox ESR (ko) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ko-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (lij) | 153.0.0 | [Mozilla Firefox ESR (lij) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.lij-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (lt) | 153.0.0 | [Mozilla Firefox ESR (lt) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.lt-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (lv) | 153.0.0 | [Mozilla Firefox ESR (lv) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.lv-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (mk) | 153.0.0 | [Mozilla Firefox ESR (mk) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.mk-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (mr) | 153.0.0 | [Mozilla Firefox ESR (mr) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.mr-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ms) | 153.0.0 | [Mozilla Firefox ESR (ms) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ms-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (my) | 153.0.0 | [Mozilla Firefox ESR (my) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.my-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (nb-NO) | 153.0.0 | [Mozilla Firefox ESR (nb-NO) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.nb-no-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ne-NP) | 153.0.0 | [Mozilla Firefox ESR (ne-NP) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ne-np-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (nl) | 153.0.0 | [Mozilla Firefox ESR (nl) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.nl-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (nn-NO) | 153.0.0 | [Mozilla Firefox ESR (nn-NO) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.nn-no-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (oc) | 153.0.0 | [Mozilla Firefox ESR (oc) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.oc-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (pa-IN) | 153.0.0 | [Mozilla Firefox ESR (pa-IN) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pa-in-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (pl) | 153.0.0 | [Mozilla Firefox ESR (pl) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pl-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (pt-BR) | 153.0.0 | [Mozilla Firefox ESR (pt-BR) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pt-br-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (pt-PT) | 153.0.0 | [Mozilla Firefox ESR (pt-PT) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pt-pt-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (rm) | 153.0.0 | [Mozilla Firefox ESR (rm) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.rm-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ro) | 153.0.0 | [Mozilla Firefox ESR (ro) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ro-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ru) | 153.0.0 | [Mozilla Firefox ESR (ru) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ru-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (sat) | 153.0.0 | [Mozilla Firefox ESR (sat) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sat-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (sc) | 153.0.0 | [Mozilla Firefox ESR (sc) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sc-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (sco) | 153.0.0 | [Mozilla Firefox ESR (sco) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sco-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (si) | 153.0.0 | [Mozilla Firefox ESR (si) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.si-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (sk) | 153.0.0 | [Mozilla Firefox ESR (sk) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sk-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (sl) | 153.0.0 | [Mozilla Firefox ESR (sl) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sl-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (son) | 153.0.0 | [Mozilla Firefox ESR (son) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.son-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (sq) | 153.0.0 | [Mozilla Firefox ESR (sq) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sq-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (sr) | 153.0.0 | [Mozilla Firefox ESR (sr) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sr-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (sv-SE) | 153.0.0 | [Mozilla Firefox ESR (sv-SE) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sv-se-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (szl) | 153.0.0 | [Mozilla Firefox ESR (szl) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.szl-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ta) | 153.0.0 | [Mozilla Firefox ESR (ta) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ta-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (te) | 153.0.0 | [Mozilla Firefox ESR (te) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.te-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (tg) | 153.0.0 | [Mozilla Firefox ESR (tg) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.tg-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (th) | 153.0.0 | [Mozilla Firefox ESR (th) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.th-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (tl) | 153.0.0 | [Mozilla Firefox ESR (tl) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.tl-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (tr) | 153.0.0 | [Mozilla Firefox ESR (tr) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.tr-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (trs) | 153.0.0 | [Mozilla Firefox ESR (trs) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.trs-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (uk) | 153.0.0 | [Mozilla Firefox ESR (uk) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.uk-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (ur) | 153.0.0 | [Mozilla Firefox ESR (ur) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ur-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (uz) | 153.0.0 | [Mozilla Firefox ESR (uz) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.uz-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (vi) | 153.0.0 | [Mozilla Firefox ESR (vi) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.vi-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (xh) | 153.0.0 | [Mozilla Firefox ESR (xh) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.xh-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (zh-CN) | 153.0.0 | [Mozilla Firefox ESR (zh-CN) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.zh-cn-153.0.0.md) | Jul 20, 2026 |
| Windows apps | Mozilla Firefox ESR (zh-TW) | 153.0.0 | [Mozilla Firefox ESR (zh-TW) 153.0.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.zh-tw-153.0.0.md) | Jul 20, 2026 |
| macOS | Mozilla Firefox | 153.0 | [Mozilla Firefox 153.0](https://patchblox.com/security/data/fix/macos/org.mozilla.firefox-153.0.md) | Jul 15, 2026 |
| Linux | MozillaFirefox opensuse-leap 16.0 | 153.1.0-160000.1.2 | [OPENSUSE-SU-2026:21713-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21713-1.md) | Aug 31, 2026 |
| Linux | MozillaFirefox sles 15.6 | 153.2.0-150400.157.5.1 | [SUSE-SU-2026:4156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4156-1.md) | Sep 14, 2026 |
| Linux | MozillaFirefox sles 15.7 | 153.2.0-150400.157.5.1 | [SUSE-SU-2026:4156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4156-1.md) | Sep 14, 2026 |
| Linux | MozillaFirefox sles 16.0 | 153.1.0-160000.1.1 | [SUSE-SU-2026:23590-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23590-1.md) | Aug 31, 2026 |
| Linux | MozillaFirefox-branding-SLE sles 15.6 | 153-150400.14.3.1 | [SUSE-SU-2026:4156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4156-1.md) | Sep 14, 2026 |
| Linux | MozillaFirefox-branding-SLE sles 15.7 | 153-150400.14.3.1 | [SUSE-SU-2026:4156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4156-1.md) | Sep 14, 2026 |
| Linux | MozillaFirefox-branding-SLE sles 16.0 | 153-160000.1.1 | [SUSE-SU-2026:23590-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23590-1.md) | Aug 31, 2026 |
| Linux | MozillaThunderbird sles 15.7 | 153.2.0-150400.13.3.1 | [SUSE-SU-2026:4268-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4268-1.md) | Sep 18, 2026 |
| Linux | firefox RHEL 10 | 140.13.0-1.el10_0 | [RHSA-2026:54181](https://patchblox.com/security/data/fix/linux/rhsa-2026-54181.md) | Jul 31, 2026 |
| Linux | firefox RHEL 8 | 0:140.13.0-1.el8_10 | [RHSA-2026:47105](https://patchblox.com/security/data/fix/linux/rhsa-2026-47105.md) | Jul 31, 2026 |
| Linux | firefox RHEL 9 | 0:140.13.0-1.el9_8 | [RHSA-2026:47104](https://patchblox.com/security/data/fix/linux/rhsa-2026-47104.md) | Aug 5, 2026 |
| Linux | firefox almalinux 10 | 140.13.0-1.el10_2 | [ALSA-2026:47101](https://patchblox.com/security/data/fix/linux/alsa-2026-47101.md) | Jul 28, 2026 |
| Linux | firefox almalinux 8 | 140.13.0-1.el8_10.alma.1 | [ALSA-2026:47105](https://patchblox.com/security/data/fix/linux/alsa-2026-47105.md) | Jul 28, 2026 |
| Linux | firefox almalinux 9 | 140.13.0-1.el9_8.alma.1 | [ALSA-2026:47104](https://patchblox.com/security/data/fix/linux/alsa-2026-47104.md) | Jul 28, 2026 |
| Linux | firefox amzn 2023 | 140.13.0-1.amzn2023.0.1 | [ALAS2023-2026-2069](https://patchblox.com/security/data/fix/linux/alas2023-2026-2069.md) | Aug 17, 2026 |
| Linux | firefox ol 10 | 0:140.13.0-1.0.1.el10_2 | [ELSA-2026-47101](https://patchblox.com/security/data/fix/linux/elsa-2026-47101.md) | Jul 28, 2026 |
| Linux | firefox ol 8 | 0:140.13.0-1.0.1.el8_10 | [ELSA-2026-47105](https://patchblox.com/security/data/fix/linux/elsa-2026-47105.md) | Jul 28, 2026 |
| Linux | firefox ol 9 | 0:140.13.0-1.0.1.el9_8 | [ELSA-2026-47104](https://patchblox.com/security/data/fix/linux/elsa-2026-47104.md) | Jul 29, 2026 |
| Linux | firefox rocky 10 | 0:140.13.0-1.el10_2 | [RLSA-2026:47101](https://patchblox.com/security/data/fix/linux/rlsa-2026-47101.md) | Jul 30, 2026 |
| Linux | firefox rocky 8 | 0:140.13.0-1.el8_10 | [RLSA-2026:47105](https://patchblox.com/security/data/fix/linux/rlsa-2026-47105.md) | Jul 29, 2026 |
| Linux | firefox rocky 9 | 0:140.13.0-1.el9_8 | [RLSA-2026:47104](https://patchblox.com/security/data/fix/linux/rlsa-2026-47104.md) | Aug 3, 2026 |
| Linux | firefox-debuginfo amzn 2023 | 140.13.0-1.amzn2023.0.1 | [ALAS2023-2026-2069](https://patchblox.com/security/data/fix/linux/alas2023-2026-2069.md) | Aug 17, 2026 |
| Linux | firefox-debugsource amzn 2023 | 140.13.0-1.amzn2023.0.1 | [ALAS2023-2026-2069](https://patchblox.com/security/data/fix/linux/alas2023-2026-2069.md) | Aug 17, 2026 |
| Linux | firefox-esr Debian 12.15 (bookworm) | 140.13.0esr-1~deb12u1 | [DEBIAN-CVE-2026-16405](https://patchblox.com/security/data/fix/linux/debian-cve-2026-16405.md) | Jul 23, 2026 |
| Linux | firefox-esr Debian 13.5 (trixie) | 140.13.0esr-1~deb13u1 | [DEBIAN-CVE-2026-16405](https://patchblox.com/security/data/fix/linux/debian-cve-2026-16405.md) | Jul 23, 2026 |
| Linux | firefox-esr Debian 14 | 140.13.0esr-1 | [DEBIAN-CVE-2026-16405](https://patchblox.com/security/data/fix/linux/debian-cve-2026-16405.md) | Jul 23, 2026 |
| Linux | firefox-x11 RHEL 9 | 0:140.13.0-1.el9_8 | [RHSA-2026:47104](https://patchblox.com/security/data/fix/linux/rhsa-2026-47104.md) | Aug 5, 2026 |
| Linux | firefox-x11 almalinux 9 | 140.13.0-1.el9_8.alma.1 | [ALSA-2026:47104](https://patchblox.com/security/data/fix/linux/alsa-2026-47104.md) | Jul 28, 2026 |
| Linux | firefox-x11 ol 9 | 0:140.13.0-1.0.1.el9_8 | [ELSA-2026-47104](https://patchblox.com/security/data/fix/linux/elsa-2026-47104.md) | Jul 29, 2026 |
| Linux | mozilla-nspr opensuse-leap 16.0 | 4.39-160000.1.1 | [OPENSUSE-SU-2026:21713-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21713-1.md) | Aug 31, 2026 |
| Linux | mozilla-nspr sles 15.6 | 4.39-150400.12.3.1 | [SUSE-SU-2026:4156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4156-1.md) | Sep 14, 2026 |
| Linux | mozilla-nspr sles 15.7 | 4.39-150400.12.3.1 | [SUSE-SU-2026:4156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4156-1.md) | Sep 14, 2026 |
| Linux | mozilla-nspr sles 16.0 | 4.39-160000.1.1 | [SUSE-SU-2026:23590-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23590-1.md) | Aug 31, 2026 |
| Linux | mozilla-nss opensuse-leap 16.0 | 3.125-160000.1.1 | [OPENSUSE-SU-2026:21713-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21713-1.md) | Aug 31, 2026 |
| Linux | mozilla-nss sles 15.6 | 3.125-150400.3.74.1 | [SUSE-SU-2026:4156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4156-1.md) | Sep 14, 2026 |
| Linux | mozilla-nss sles 15.7 | 3.125-150400.3.74.1 | [SUSE-SU-2026:4156-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4156-1.md) | Sep 14, 2026 |
| Linux | mozilla-nss sles 16.0 | 3.125-160000.1.1 | [SUSE-SU-2026:23590-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23590-1.md) | Aug 31, 2026 |
| Linux | rust-cbindgen opensuse-leap 16.0 | 0.29.4+git0-160000.1.1 | [OPENSUSE-SU-2026:21713-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21713-1.md) | Aug 31, 2026 |
| Linux | rust-cbindgen sles 16.0 | 0.29.4+git0-160000.1.1 | [SUSE-SU-2026:23590-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23590-1.md) | Aug 31, 2026 |
| Linux | thunderbird Debian 12.15 (bookworm) | 1:140.13.0esr-2~deb12u1 | [DEBIAN-CVE-2026-16405](https://patchblox.com/security/data/fix/linux/debian-cve-2026-16405.md) | Jul 23, 2026 |
| Linux | thunderbird Debian 13.5 (trixie) | 1:140.13.0esr-2~deb13u1 | [DEBIAN-CVE-2026-16405](https://patchblox.com/security/data/fix/linux/debian-cve-2026-16405.md) | Jul 23, 2026 |
| Linux | thunderbird Debian 14 | 1:140.13.0esr-1 | [DEBIAN-CVE-2026-16405](https://patchblox.com/security/data/fix/linux/debian-cve-2026-16405.md) | Jul 23, 2026 |
| Linux | thunderbird RHEL 10 | 140.13.0-1.el10_0 | [RHSA-2026:53445](https://patchblox.com/security/data/fix/linux/rhsa-2026-53445.md) | Aug 3, 2026 |
| Linux | thunderbird RHEL 8 | 0:140.13.0-1.el8_10 | [RHSA-2026:49922](https://patchblox.com/security/data/fix/linux/rhsa-2026-49922.md) | Aug 5, 2026 |
| Linux | thunderbird RHEL 9 | 0:140.13.0-1.el9_8 | [RHSA-2026:49921](https://patchblox.com/security/data/fix/linux/rhsa-2026-49921.md) | Aug 5, 2026 |
| Linux | thunderbird almalinux 10 | 140.13.0-1.el10_2.alma.1 | [ALSA-2026:49621](https://patchblox.com/security/data/fix/linux/alsa-2026-49621.md) | Aug 3, 2026 |
| Linux | thunderbird almalinux 8 | 140.13.0-1.el8_10.alma.1 | [ALSA-2026:49922](https://patchblox.com/security/data/fix/linux/alsa-2026-49922.md) | Aug 4, 2026 |
| Linux | thunderbird almalinux 9 | 140.13.0-1.el9_8.alma.1 | [ALSA-2026:49921](https://patchblox.com/security/data/fix/linux/alsa-2026-49921.md) | Aug 4, 2026 |
| Linux | thunderbird ol 10 | 0:140.13.0-1.0.1.el10_2 | [ELSA-2026-49621](https://patchblox.com/security/data/fix/linux/elsa-2026-49621.md) | Aug 3, 2026 |
| Linux | thunderbird ol 8 | 0:140.13.0-1.0.1.el8_10 | [ELSA-2026-49922](https://patchblox.com/security/data/fix/linux/elsa-2026-49922.md) | Aug 4, 2026 |
| Linux | thunderbird ol 9 | 0:140.13.0-1.0.1.el9_8 | [ELSA-2026-49921](https://patchblox.com/security/data/fix/linux/elsa-2026-49921.md) | Aug 4, 2026 |
| Linux | thunderbird rocky 10 | 0:140.13.0-1.el10_2 | [RLSA-2026:49621](https://patchblox.com/security/data/fix/linux/rlsa-2026-49621.md) | Aug 6, 2026 |
| Linux | thunderbird rocky 8 | 0:140.13.0-1.el8_10 | [RLSA-2026:49922](https://patchblox.com/security/data/fix/linux/rlsa-2026-49922.md) | Aug 6, 2026 |
| Linux | thunderbird rocky 9 | 0:140.13.0-1.el9_8 | [RLSA-2026:49921](https://patchblox.com/security/data/fix/linux/rlsa-2026-49921.md) | Aug 6, 2026 |

## No fix yet

| Platform | Product | Status |
|---|---|---|
| Windows apps | Firefox Developer Edition (ach) | no-fix |
| Windows apps | Firefox Developer Edition (af) | no-fix |
| Windows apps | Firefox Developer Edition (an) | no-fix |
| Windows apps | Firefox Developer Edition (ar) | no-fix |
| Windows apps | Firefox Developer Edition (ast) | no-fix |
| Windows apps | Firefox Developer Edition (az) | no-fix |
| Windows apps | Firefox Developer Edition (be) | no-fix |
| Windows apps | Firefox Developer Edition (bg) | no-fix |
| Windows apps | Firefox Developer Edition (bn) | no-fix |
| Windows apps | Firefox Developer Edition (br) | no-fix |
| Windows apps | Firefox Developer Edition (bs) | no-fix |
| Windows apps | Firefox Developer Edition (ca) | no-fix |
| Windows apps | Firefox Developer Edition (ca-valencia) | no-fix |
| Windows apps | Firefox Developer Edition (cak) | no-fix |
| Windows apps | Firefox Developer Edition (cs) | no-fix |
| Windows apps | Firefox Developer Edition (cy) | no-fix |
| Windows apps | Firefox Developer Edition (da) | no-fix |
| Windows apps | Firefox Developer Edition (de) | no-fix |
| Windows apps | Firefox Developer Edition (dsb) | no-fix |
| Windows apps | Firefox Developer Edition (el) | no-fix |
| Windows apps | Firefox Developer Edition (en-CA) | no-fix |
| Windows apps | Firefox Developer Edition (en-GB) | no-fix |
| Windows apps | Firefox Developer Edition (eo) | no-fix |
| Windows apps | Firefox Developer Edition (es-AR) | no-fix |
| Windows apps | Firefox Developer Edition (es-CL) | no-fix |
| Windows apps | Firefox Developer Edition (es-ES) | no-fix |
| Windows apps | Firefox Developer Edition (es-MX) | no-fix |
| Windows apps | Firefox Developer Edition (et) | no-fix |
| Windows apps | Firefox Developer Edition (eu) | no-fix |
| Windows apps | Firefox Developer Edition (fa) | no-fix |
| Windows apps | Firefox Developer Edition (ff) | no-fix |
| Windows apps | Firefox Developer Edition (fi) | no-fix |
| Windows apps | Firefox Developer Edition (fr) | no-fix |
| Windows apps | Firefox Developer Edition (fur) | no-fix |
| Windows apps | Firefox Developer Edition (fy-NL) | no-fix |
| Windows apps | Firefox Developer Edition (ga-IE) | no-fix |
| Windows apps | Firefox Developer Edition (gd) | no-fix |
| Windows apps | Firefox Developer Edition (gl) | no-fix |
| Windows apps | Firefox Developer Edition (gn) | no-fix |
| Windows apps | Firefox Developer Edition (gu-IN) | no-fix |
| Windows apps | Firefox Developer Edition (he) | no-fix |
| Windows apps | Firefox Developer Edition (hi-IN) | no-fix |
| Windows apps | Firefox Developer Edition (hr) | no-fix |
| Windows apps | Firefox Developer Edition (hsb) | no-fix |
| Windows apps | Firefox Developer Edition (hu) | no-fix |
| Windows apps | Firefox Developer Edition (hy-AM) | no-fix |
| Windows apps | Firefox Developer Edition (ia) | no-fix |
| Windows apps | Firefox Developer Edition (id) | no-fix |
| Windows apps | Firefox Developer Edition (is) | no-fix |
| Windows apps | Firefox Developer Edition (it) | no-fix |
| Windows apps | Firefox Developer Edition (ja) | no-fix |
| Windows apps | Firefox Developer Edition (ka) | no-fix |
| Windows apps | Firefox Developer Edition (kab) | no-fix |
| Windows apps | Firefox Developer Edition (kk) | no-fix |
| Windows apps | Firefox Developer Edition (km) | no-fix |
| Windows apps | Firefox Developer Edition (kn) | no-fix |
| Windows apps | Firefox Developer Edition (ko) | no-fix |
| Windows apps | Firefox Developer Edition (lij) | no-fix |
| Windows apps | Firefox Developer Edition (lt) | no-fix |
| Windows apps | Firefox Developer Edition (lv) | no-fix |
| Windows apps | Firefox Developer Edition (mk) | no-fix |
| Windows apps | Firefox Developer Edition (mr) | no-fix |
| Windows apps | Firefox Developer Edition (ms) | no-fix |
| Windows apps | Firefox Developer Edition (my) | no-fix |
| Windows apps | Firefox Developer Edition (nb-NO) | no-fix |
| Windows apps | Firefox Developer Edition (ne-NP) | no-fix |
| Windows apps | Firefox Developer Edition (nl) | no-fix |
| Windows apps | Firefox Developer Edition (nn-NO) | no-fix |
| Windows apps | Firefox Developer Edition (oc) | no-fix |
| Windows apps | Firefox Developer Edition (pa-IN) | no-fix |
| Windows apps | Firefox Developer Edition (pl) | no-fix |
| Windows apps | Firefox Developer Edition (pt-BR) | no-fix |
| Windows apps | Firefox Developer Edition (pt-PT) | no-fix |
| Windows apps | Firefox Developer Edition (rm) | no-fix |
| Windows apps | Firefox Developer Edition (ro) | no-fix |
| Windows apps | Firefox Developer Edition (ru) | no-fix |
| Windows apps | Firefox Developer Edition (sc) | no-fix |
| Windows apps | Firefox Developer Edition (sco) | no-fix |
| Windows apps | Firefox Developer Edition (si) | no-fix |
| Windows apps | Firefox Developer Edition (sk) | no-fix |
| Windows apps | Firefox Developer Edition (sl) | no-fix |
| Windows apps | Firefox Developer Edition (son) | no-fix |
| Windows apps | Firefox Developer Edition (sq) | no-fix |
| Windows apps | Firefox Developer Edition (sr) | no-fix |
| Windows apps | Firefox Developer Edition (sv-SE) | no-fix |
| Windows apps | Firefox Developer Edition (szl) | no-fix |
| Windows apps | Firefox Developer Edition (ta) | no-fix |
| Windows apps | Firefox Developer Edition (te) | no-fix |
| Windows apps | Firefox Developer Edition (tg) | no-fix |
| Windows apps | Firefox Developer Edition (th) | no-fix |
| Windows apps | Firefox Developer Edition (tl) | no-fix |
| Windows apps | Firefox Developer Edition (tr) | no-fix |
| Windows apps | Firefox Developer Edition (trs) | no-fix |
| Windows apps | Firefox Developer Edition (uk) | no-fix |
| Windows apps | Firefox Developer Edition (ur) | no-fix |
| Windows apps | Firefox Developer Edition (uz) | no-fix |
| Windows apps | Firefox Developer Edition (vi) | no-fix |
| Windows apps | Firefox Developer Edition (xh) | no-fix |
| Windows apps | Firefox Developer Edition (zh-CN) | no-fix |
| Windows apps | Firefox Developer Edition (zh-TW) | no-fix |

---

Data as of 2026-11-08T13:06:02Z 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.