# CVE-2026-75874: Sandbox escape in the Remote Settings Client component

CVE-2026-75874 is fixed in 179 products on 3 platforms, first by Mozilla Firefox 154.0, released August 12, 2026. 200 other affected products have no fix yet. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2026-75874
- Priority: Urgent
- CVSS: 10.0 (critical)
- EPSS: 0.0046
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 18, 2026
- Weakness: CWE-693: Protection Mechanism Failure
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-75874

## Description

Sandbox escape in the Remote Settings Client component. This vulnerability was fixed in Firefox 154, Thunderbird 154, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 140.15, and Thunderbird 153.2.

## 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) | 154.0 | [Mozilla Firefox (ach) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ach-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (af) | 154.0 | [Mozilla Firefox (af) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.af-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (an) | 154.0 | [Mozilla Firefox (an) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.an-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ar) | 154.0 | [Mozilla Firefox (ar) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ar-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ast) | 154.0 | [Mozilla Firefox (ast) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ast-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (az) | 154.0 | [Mozilla Firefox (az) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.az-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (be) | 154.0 | [Mozilla Firefox (be) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.be-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (bg) | 154.0 | [Mozilla Firefox (bg) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bg-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (bn) | 154.0 | [Mozilla Firefox (bn) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bn-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (br) | 154.0 | [Mozilla Firefox (br) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.br-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (bs) | 154.0 | [Mozilla Firefox (bs) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bs-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ca) | 154.0 | [Mozilla Firefox (ca) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ca-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ca-valencia) | 154.0 | [Mozilla Firefox (ca-valencia) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ca-valencia-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (cak) | 154.0 | [Mozilla Firefox (cak) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cak-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (cs) | 154.0 | [Mozilla Firefox (cs) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cs-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (cy) | 154.0 | [Mozilla Firefox (cy) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cy-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (da) | 154.0 | [Mozilla Firefox (da) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.da-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (de) | 154.0 | [Mozilla Firefox (de) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.de-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (dsb) | 154.0 | [Mozilla Firefox (dsb) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.dsb-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (el) | 154.0 | [Mozilla Firefox (el) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.el-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (en-CA) | 154.0 | [Mozilla Firefox (en-CA) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.en-ca-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (en-GB) | 154.0 | [Mozilla Firefox (en-GB) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.en-gb-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (en-US) | 154.0 | [Mozilla Firefox (en-US) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (eo) | 154.0 | [Mozilla Firefox (eo) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.eo-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (es-AR) | 154.0 | [Mozilla Firefox (es-AR) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-ar-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (es-CL) | 154.0 | [Mozilla Firefox (es-CL) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-cl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (es-ES) | 154.0 | [Mozilla Firefox (es-ES) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-es-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (es-MX) | 154.0 | [Mozilla Firefox (es-MX) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-mx-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (et) | 154.0 | [Mozilla Firefox (et) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.et-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (eu) | 154.0 | [Mozilla Firefox (eu) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.eu-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (fa) | 154.0 | [Mozilla Firefox (fa) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fa-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ff) | 154.0 | [Mozilla Firefox (ff) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ff-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (fi) | 154.0 | [Mozilla Firefox (fi) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fi-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (fr) | 154.0 | [Mozilla Firefox (fr) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fr-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (fur) | 154.0 | [Mozilla Firefox (fur) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fur-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (fy-NL) | 154.0 | [Mozilla Firefox (fy-NL) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fy-nl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ga-IE) | 154.0 | [Mozilla Firefox (ga-IE) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ga-ie-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (gd) | 154.0 | [Mozilla Firefox (gd) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gd-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (gl) | 154.0 | [Mozilla Firefox (gl) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (gn) | 154.0 | [Mozilla Firefox (gn) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gn-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (gu-IN) | 154.0 | [Mozilla Firefox (gu-IN) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gu-in-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (he) | 154.0 | [Mozilla Firefox (he) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.he-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (hi-IN) | 154.0 | [Mozilla Firefox (hi-IN) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hi-in-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (hr) | 154.0 | [Mozilla Firefox (hr) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hr-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (hsb) | 154.0 | [Mozilla Firefox (hsb) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hsb-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (hu) | 154.0 | [Mozilla Firefox (hu) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hu-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (hy-AM) | 154.0 | [Mozilla Firefox (hy-AM) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hy-am-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ia) | 154.0 | [Mozilla Firefox (ia) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ia-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (id) | 154.0 | [Mozilla Firefox (id) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.id-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (is) | 154.0 | [Mozilla Firefox (is) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.is-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (it) | 154.0 | [Mozilla Firefox (it) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.it-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ja) | 154.0 | [Mozilla Firefox (ja) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ja-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ka) | 154.0 | [Mozilla Firefox (ka) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ka-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (kab) | 154.0 | [Mozilla Firefox (kab) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kab-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (kk) | 154.0 | [Mozilla Firefox (kk) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kk-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (km) | 154.0 | [Mozilla Firefox (km) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.km-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (kn) | 154.0 | [Mozilla Firefox (kn) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kn-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ko) | 154.0 | [Mozilla Firefox (ko) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ko-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (lij) | 154.0 | [Mozilla Firefox (lij) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lij-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (lt) | 154.0 | [Mozilla Firefox (lt) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lt-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (lv) | 154.0 | [Mozilla Firefox (lv) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lv-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (mk) | 154.0 | [Mozilla Firefox (mk) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.mk-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (mr) | 154.0 | [Mozilla Firefox (mr) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.mr-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ms) | 154.0 | [Mozilla Firefox (ms) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ms-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (my) | 154.0 | [Mozilla Firefox (my) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.my-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (nb-NO) | 154.0 | [Mozilla Firefox (nb-NO) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nb-no-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ne-NP) | 154.0 | [Mozilla Firefox (ne-NP) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ne-np-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (nl) | 154.0 | [Mozilla Firefox (nl) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (nn-NO) | 154.0 | [Mozilla Firefox (nn-NO) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nn-no-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (oc) | 154.0 | [Mozilla Firefox (oc) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.oc-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (pa-IN) | 154.0 | [Mozilla Firefox (pa-IN) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pa-in-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (pl) | 154.0 | [Mozilla Firefox (pl) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (pt-BR) | 154.0 | [Mozilla Firefox (pt-BR) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pt-br-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (pt-PT) | 154.0 | [Mozilla Firefox (pt-PT) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pt-pt-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (rm) | 154.0 | [Mozilla Firefox (rm) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.rm-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ro) | 154.0 | [Mozilla Firefox (ro) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ro-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ru) | 154.0 | [Mozilla Firefox (ru) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ru-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (sc) | 154.0 | [Mozilla Firefox (sc) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sc-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (sco) | 154.0 | [Mozilla Firefox (sco) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sco-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (si) | 154.0 | [Mozilla Firefox (si) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.si-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (sk) | 154.0 | [Mozilla Firefox (sk) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sk-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (sl) | 154.0 | [Mozilla Firefox (sl) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (son) | 154.0 | [Mozilla Firefox (son) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.son-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (sq) | 154.0 | [Mozilla Firefox (sq) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sq-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (sr) | 154.0 | [Mozilla Firefox (sr) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sr-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (sv-SE) | 154.0 | [Mozilla Firefox (sv-SE) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sv-se-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (szl) | 154.0 | [Mozilla Firefox (szl) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.szl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ta) | 154.0 | [Mozilla Firefox (ta) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ta-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (te) | 154.0 | [Mozilla Firefox (te) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.te-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (tg) | 154.0 | [Mozilla Firefox (tg) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tg-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (th) | 154.0 | [Mozilla Firefox (th) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.th-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (tl) | 154.0 | [Mozilla Firefox (tl) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (tr) | 154.0 | [Mozilla Firefox (tr) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tr-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (trs) | 154.0 | [Mozilla Firefox (trs) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.trs-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (uk) | 154.0 | [Mozilla Firefox (uk) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.uk-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (ur) | 154.0 | [Mozilla Firefox (ur) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ur-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (uz) | 154.0 | [Mozilla Firefox (uz) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.uz-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (vi) | 154.0 | [Mozilla Firefox (vi) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.vi-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (xh) | 154.0 | [Mozilla Firefox (xh) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.xh-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (zh-CN) | 154.0 | [Mozilla Firefox (zh-CN) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.zh-cn-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Firefox (zh-TW) | 154.0 | [Mozilla Firefox (zh-TW) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.zh-tw-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (af) | 154.0 | [Mozilla Thunderbird (af) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.af-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (ar) | 154.0 | [Mozilla Thunderbird (ar) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ar-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (ast) | 154.0 | [Mozilla Thunderbird (ast) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ast-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (be) | 154.0 | [Mozilla Thunderbird (be) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.be-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (bg) | 154.0 | [Mozilla Thunderbird (bg) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.bg-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (br) | 154.0 | [Mozilla Thunderbird (br) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.br-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (ca) | 154.0 | [Mozilla Thunderbird (ca) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ca-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (cak) | 154.0 | [Mozilla Thunderbird (cak) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cak-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (cs) | 154.0 | [Mozilla Thunderbird (cs) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cs-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (cy) | 154.0 | [Mozilla Thunderbird (cy) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cy-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (da) | 154.0 | [Mozilla Thunderbird (da) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.da-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (de) | 154.0 | [Mozilla Thunderbird (de) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.de-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (dsb) | 154.0 | [Mozilla Thunderbird (dsb) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.dsb-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (el) | 154.0 | [Mozilla Thunderbird (el) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.el-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (en-CA) | 154.0 | [Mozilla Thunderbird (en-CA) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-ca-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (en-GB) | 154.0 | [Mozilla Thunderbird (en-GB) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-gb-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (en-US) | 154.0 | [Mozilla Thunderbird (en-US) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (es-AR) | 154.0 | [Mozilla Thunderbird (es-AR) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-ar-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (es-ES) | 154.0 | [Mozilla Thunderbird (es-ES) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-es-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (es-MX) | 154.0 | [Mozilla Thunderbird (es-MX) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-mx-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (et) | 154.0 | [Mozilla Thunderbird (et) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.et-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (eu) | 154.0 | [Mozilla Thunderbird (eu) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.eu-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (fi) | 154.0 | [Mozilla Thunderbird (fi) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fi-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (fr) | 154.0 | [Mozilla Thunderbird (fr) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fr-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (fy-NL) | 154.0 | [Mozilla Thunderbird (fy-NL) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fy-nl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (ga-IE) | 154.0 | [Mozilla Thunderbird (ga-IE) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ga-ie-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (gd) | 154.0 | [Mozilla Thunderbird (gd) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gd-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (gl) | 154.0 | [Mozilla Thunderbird (gl) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (he) | 154.0 | [Mozilla Thunderbird (he) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.he-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (hr) | 154.0 | [Mozilla Thunderbird (hr) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hr-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (hsb) | 154.0 | [Mozilla Thunderbird (hsb) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hsb-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (hu) | 154.0 | [Mozilla Thunderbird (hu) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hu-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (hy-AM) | 154.0 | [Mozilla Thunderbird (hy-AM) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hy-am-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (id) | 154.0 | [Mozilla Thunderbird (id) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.id-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (is) | 154.0 | [Mozilla Thunderbird (is) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.is-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (it) | 154.0 | [Mozilla Thunderbird (it) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.it-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (ja) | 154.0 | [Mozilla Thunderbird (ja) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ja-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (ka) | 154.0 | [Mozilla Thunderbird (ka) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ka-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (kab) | 154.0 | [Mozilla Thunderbird (kab) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kab-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (kk) | 154.0 | [Mozilla Thunderbird (kk) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kk-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (ko) | 154.0 | [Mozilla Thunderbird (ko) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ko-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (lt) | 154.0 | [Mozilla Thunderbird (lt) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lt-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (lv) | 154.0 | [Mozilla Thunderbird (lv) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lv-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (ms) | 154.0 | [Mozilla Thunderbird (ms) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ms-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (nb-NO) | 154.0 | [Mozilla Thunderbird (nb-NO) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nb-no-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (nl) | 154.0 | [Mozilla Thunderbird (nl) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (nn-NO) | 154.0 | [Mozilla Thunderbird (nn-NO) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nn-no-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (pa-IN) | 154.0 | [Mozilla Thunderbird (pa-IN) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pa-in-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (pl) | 154.0 | [Mozilla Thunderbird (pl) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (pt-BR) | 154.0 | [Mozilla Thunderbird (pt-BR) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-br-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (pt-PT) | 154.0 | [Mozilla Thunderbird (pt-PT) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-pt-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (rm) | 154.0 | [Mozilla Thunderbird (rm) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.rm-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (ro) | 154.0 | [Mozilla Thunderbird (ro) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ro-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (ru) | 154.0 | [Mozilla Thunderbird (ru) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ru-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (sk) | 154.0 | [Mozilla Thunderbird (sk) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sk-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (sl) | 154.0 | [Mozilla Thunderbird (sl) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sl-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (sq) | 154.0 | [Mozilla Thunderbird (sq) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sq-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (sr) | 154.0 | [Mozilla Thunderbird (sr) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sr-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (sv-SE) | 154.0 | [Mozilla Thunderbird (sv-SE) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sv-se-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (th) | 154.0 | [Mozilla Thunderbird (th) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.th-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (tr) | 154.0 | [Mozilla Thunderbird (tr) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.tr-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (uk) | 154.0 | [Mozilla Thunderbird (uk) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uk-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (uz) | 154.0 | [Mozilla Thunderbird (uz) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uz-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (vi) | 154.0 | [Mozilla Thunderbird (vi) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.vi-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (zh-CN) | 154.0 | [Mozilla Thunderbird (zh-CN) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-cn-154.0.md) | Aug 18, 2026 |
| Windows apps | Mozilla Thunderbird (zh-TW) | 154.0 | [Mozilla Thunderbird (zh-TW) 154.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-tw-154.0.md) | Aug 18, 2026 |
| macOS | Mozilla Firefox | 154.0 | [Mozilla Firefox 154.0](https://patchblox.com/security/data/fix/macos/org.mozilla.firefox-154.0.md) | Aug 12, 2026 |
| macOS | Mozilla Thunderbird | 154.0 | [Mozilla Thunderbird 154.0](https://patchblox.com/security/data/fix/macos/org.mozilla.thunderbird-154.0.md) | Aug 17, 2026 |
| Linux | MozillaFirefox opensuse-leap 16.0 | 153.2.0-160000.1.1 | [OPENSUSE-SU-2026:21853-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21853-1.md) | Sep 15, 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 | 153.2.0-160000.1.1 | [SUSE-SU-2026:23784-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23784-1.md) | Sep 15, 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 | 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 | 140.15.0-1.el10_0 | [RHSA-2026:77610](https://patchblox.com/security/data/fix/linux/rhsa-2026-77610.md) | Sep 27, 2026 |
| Linux | firefox RHEL 8 | 0:140.15.0-1.el8_10 | [RHSA-2026:68549](https://patchblox.com/security/data/fix/linux/rhsa-2026-68549.md) | Sep 27, 2026 |
| Linux | firefox RHEL 9 | 0:140.15.0-1.el9_8 | [RHSA-2026:67133](https://patchblox.com/security/data/fix/linux/rhsa-2026-67133.md) | Sep 27, 2026 |
| Linux | firefox almalinux 10 | 140.15.0-1.el10_2 | [ALSA-2026:67129](https://patchblox.com/security/data/fix/linux/alsa-2026-67129.md) | Sep 14, 2026 |
| Linux | firefox almalinux 8 | 140.15.0-1.el8_10.alma.1 | [ALSA-2026:68549](https://patchblox.com/security/data/fix/linux/alsa-2026-68549.md) | Sep 17, 2026 |
| Linux | firefox almalinux 9 | 140.15.0-1.el9_8.alma.1 | [ALSA-2026:67133](https://patchblox.com/security/data/fix/linux/alsa-2026-67133.md) | Sep 14, 2026 |
| Linux | firefox ol 10 | 0:140.15.0-1.0.1.el10_2 | [ELSA-2026-67129-0](https://patchblox.com/security/data/fix/linux/elsa-2026-67129-0.md) | Sep 14, 2026 |
| Linux | firefox ol 8 | 0:140.15.0-1.0.1.el8_10 | [ELSA-2026-68549](https://patchblox.com/security/data/fix/linux/elsa-2026-68549.md) | Sep 17, 2026 |
| Linux | firefox ol 9 | 0:140.15.0-1.0.1.el9_8 | [ELSA-2026-67133-0](https://patchblox.com/security/data/fix/linux/elsa-2026-67133-0.md) | Sep 14, 2026 |
| Linux | firefox rocky 10 | 0:140.15.0-1.el10_2 | [RLSA-2026:67129](https://patchblox.com/security/data/fix/linux/rlsa-2026-67129.md) | Sep 27, 2026 |
| Linux | firefox rocky 8 | 0:140.15.0-1.el8_10 | [RLSA-2026:68549](https://patchblox.com/security/data/fix/linux/rlsa-2026-68549.md) | Sep 27, 2026 |
| Linux | firefox rocky 9 | 0:140.15.0-1.el9_8 | [RLSA-2026:67133](https://patchblox.com/security/data/fix/linux/rlsa-2026-67133.md) | Sep 27, 2026 |
| Linux | firefox-esr Debian 12.15 (bookworm) | 140.15.0esr-1~deb12u1 | [DEBIAN-CVE-2026-75874](https://patchblox.com/security/data/fix/linux/debian-cve-2026-75874.md) | Sep 4, 2026 |
| Linux | firefox-esr Debian 13.5 (trixie) | 140.15.0esr-1~deb13u1 | [DEBIAN-CVE-2026-75874](https://patchblox.com/security/data/fix/linux/debian-cve-2026-75874.md) | Sep 4, 2026 |
| Linux | firefox-esr Debian 14 | 140.15.0esr-1 | [DEBIAN-CVE-2026-75874](https://patchblox.com/security/data/fix/linux/debian-cve-2026-75874.md) | Sep 4, 2026 |
| Linux | firefox-x11 RHEL 9 | 0:140.15.0-1.el9_8 | [RHSA-2026:67133](https://patchblox.com/security/data/fix/linux/rhsa-2026-67133.md) | Sep 27, 2026 |
| Linux | firefox-x11 almalinux 9 | 140.15.0-1.el9_8.alma.1 | [ALSA-2026:67133](https://patchblox.com/security/data/fix/linux/alsa-2026-67133.md) | Sep 14, 2026 |
| Linux | firefox-x11 ol 9 | 0:140.15.0-1.0.1.el9_8 | [ELSA-2026-67133-0](https://patchblox.com/security/data/fix/linux/elsa-2026-67133-0.md) | Sep 14, 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-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 | thunderbird Debian 12.15 (bookworm) | 1:140.15.0esr-1~deb12u1 | [DEBIAN-CVE-2026-75874](https://patchblox.com/security/data/fix/linux/debian-cve-2026-75874.md) | Sep 4, 2026 |
| Linux | thunderbird Debian 13.5 (trixie) | 1:140.15.0esr-1~deb13u1 | [DEBIAN-CVE-2026-75874](https://patchblox.com/security/data/fix/linux/debian-cve-2026-75874.md) | Sep 4, 2026 |
| Linux | thunderbird Debian 14 | 1:153.2.0esr-1 | [DEBIAN-CVE-2026-75874](https://patchblox.com/security/data/fix/linux/debian-cve-2026-75874.md) | Sep 4, 2026 |
| Linux | thunderbird RHEL 10 | 140.15.0-1.el10_0 | [RHSA-2026:77631](https://patchblox.com/security/data/fix/linux/rhsa-2026-77631.md) | Sep 30, 2026 |
| Linux | thunderbird RHEL 8 | 0:140.16.0-1.el8_10 | [RHSA-2026:73971](https://patchblox.com/security/data/fix/linux/rhsa-2026-73971.md) | Oct 1, 2026 |
| Linux | thunderbird RHEL 9 | 0:140.16.0-1.el9_8 | [RHSA-2026:70642](https://patchblox.com/security/data/fix/linux/rhsa-2026-70642.md) | Sep 24, 2026 |
| Linux | thunderbird almalinux 10 | 140.16.0-1.el10_2.alma.1 | [ALSA-2026:73130](https://patchblox.com/security/data/fix/linux/alsa-2026-73130.md) | Sep 29, 2026 |
| Linux | thunderbird almalinux 8 | 140.16.0-1.el8_10.alma.1 | [ALSA-2026:73971](https://patchblox.com/security/data/fix/linux/alsa-2026-73971.md) | Sep 30, 2026 |
| Linux | thunderbird almalinux 9 | 140.16.0-1.el9_8.alma.1 | [ALSA-2026:70642](https://patchblox.com/security/data/fix/linux/alsa-2026-70642.md) | Sep 23, 2026 |
| Linux | thunderbird ol 10 | 0:140.16.0-1.0.1.el10_2 | [ELSA-2026-73130](https://patchblox.com/security/data/fix/linux/elsa-2026-73130.md) | Sep 29, 2026 |
| Linux | thunderbird ol 8 | 0:140.16.0-1.0.1.el8_10 | [ELSA-2026-73971](https://patchblox.com/security/data/fix/linux/elsa-2026-73971.md) | Oct 1, 2026 |
| Linux | thunderbird ol 9 | 0:140.16.0-1.0.1.el9_8 | [ELSA-2026-70642](https://patchblox.com/security/data/fix/linux/elsa-2026-70642.md) | Sep 24, 2026 |
| Linux | thunderbird rocky 10 | 0:140.16.0-1.el10_2 | [RLSA-2026:73130](https://patchblox.com/security/data/fix/linux/rlsa-2026-73130.md) | Sep 30, 2026 |
| Linux | thunderbird rocky 8 | 0:140.16.0-1.el8_10 | [RLSA-2026:73971](https://patchblox.com/security/data/fix/linux/rlsa-2026-73971.md) | Oct 1, 2026 |
| Linux | thunderbird rocky 9 | 0:140.16.0-1.el9_8 | [RLSA-2026:70642](https://patchblox.com/security/data/fix/linux/rlsa-2026-70642.md) | Sep 25, 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 |
| Windows apps | Mozilla Firefox ESR (ach) | no-fix |
| Windows apps | Mozilla Firefox ESR (af) | no-fix |
| Windows apps | Mozilla Firefox ESR (an) | no-fix |
| Windows apps | Mozilla Firefox ESR (ar) | no-fix |
| Windows apps | Mozilla Firefox ESR (ast) | no-fix |
| Windows apps | Mozilla Firefox ESR (az) | no-fix |
| Windows apps | Mozilla Firefox ESR (be) | no-fix |
| Windows apps | Mozilla Firefox ESR (bg) | no-fix |
| Windows apps | Mozilla Firefox ESR (bn) | no-fix |
| Windows apps | Mozilla Firefox ESR (br) | no-fix |
| Windows apps | Mozilla Firefox ESR (bs) | no-fix |
| Windows apps | Mozilla Firefox ESR (ca) | no-fix |
| Windows apps | Mozilla Firefox ESR (ca-valencia) | no-fix |
| Windows apps | Mozilla Firefox ESR (cak) | no-fix |
| Windows apps | Mozilla Firefox ESR (cs) | no-fix |
| Windows apps | Mozilla Firefox ESR (cy) | no-fix |
| Windows apps | Mozilla Firefox ESR (da) | no-fix |
| Windows apps | Mozilla Firefox ESR (de) | no-fix |
| Windows apps | Mozilla Firefox ESR (dsb) | no-fix |
| Windows apps | Mozilla Firefox ESR (el) | no-fix |
| Windows apps | Mozilla Firefox ESR (en-CA) | no-fix |
| Windows apps | Mozilla Firefox ESR (en-GB) | no-fix |
| Windows apps | Mozilla Firefox ESR (en-US) | no-fix |
| Windows apps | Mozilla Firefox ESR (eo) | no-fix |
| Windows apps | Mozilla Firefox ESR (es-AR) | no-fix |
| Windows apps | Mozilla Firefox ESR (es-CL) | no-fix |
| Windows apps | Mozilla Firefox ESR (es-ES) | no-fix |
| Windows apps | Mozilla Firefox ESR (es-MX) | no-fix |
| Windows apps | Mozilla Firefox ESR (et) | no-fix |
| Windows apps | Mozilla Firefox ESR (eu) | no-fix |
| Windows apps | Mozilla Firefox ESR (fa) | no-fix |
| Windows apps | Mozilla Firefox ESR (ff) | no-fix |
| Windows apps | Mozilla Firefox ESR (fi) | no-fix |
| Windows apps | Mozilla Firefox ESR (fr) | no-fix |
| Windows apps | Mozilla Firefox ESR (fur) | no-fix |
| Windows apps | Mozilla Firefox ESR (fy-NL) | no-fix |
| Windows apps | Mozilla Firefox ESR (ga-IE) | no-fix |
| Windows apps | Mozilla Firefox ESR (gd) | no-fix |
| Windows apps | Mozilla Firefox ESR (gl) | no-fix |
| Windows apps | Mozilla Firefox ESR (gn) | no-fix |
| Windows apps | Mozilla Firefox ESR (gu-IN) | no-fix |
| Windows apps | Mozilla Firefox ESR (he) | no-fix |
| Windows apps | Mozilla Firefox ESR (hi-IN) | no-fix |
| Windows apps | Mozilla Firefox ESR (hr) | no-fix |
| Windows apps | Mozilla Firefox ESR (hsb) | no-fix |
| Windows apps | Mozilla Firefox ESR (hu) | no-fix |
| Windows apps | Mozilla Firefox ESR (hy-AM) | no-fix |
| Windows apps | Mozilla Firefox ESR (ia) | no-fix |
| Windows apps | Mozilla Firefox ESR (id) | no-fix |
| Windows apps | Mozilla Firefox ESR (is) | no-fix |
| Windows apps | Mozilla Firefox ESR (it) | no-fix |
| Windows apps | Mozilla Firefox ESR (ja) | no-fix |
| Windows apps | Mozilla Firefox ESR (ka) | no-fix |
| Windows apps | Mozilla Firefox ESR (kab) | no-fix |
| Windows apps | Mozilla Firefox ESR (kk) | no-fix |
| Windows apps | Mozilla Firefox ESR (km) | no-fix |
| Windows apps | Mozilla Firefox ESR (kn) | no-fix |
| Windows apps | Mozilla Firefox ESR (ko) | no-fix |
| Windows apps | Mozilla Firefox ESR (lij) | no-fix |
| Windows apps | Mozilla Firefox ESR (lt) | no-fix |
| Windows apps | Mozilla Firefox ESR (lv) | no-fix |
| Windows apps | Mozilla Firefox ESR (mk) | no-fix |
| Windows apps | Mozilla Firefox ESR (mr) | no-fix |
| Windows apps | Mozilla Firefox ESR (ms) | no-fix |
| Windows apps | Mozilla Firefox ESR (my) | no-fix |
| Windows apps | Mozilla Firefox ESR (nb-NO) | no-fix |
| Windows apps | Mozilla Firefox ESR (ne-NP) | no-fix |
| Windows apps | Mozilla Firefox ESR (nl) | no-fix |
| Windows apps | Mozilla Firefox ESR (nn-NO) | no-fix |
| Windows apps | Mozilla Firefox ESR (oc) | no-fix |
| Windows apps | Mozilla Firefox ESR (pa-IN) | no-fix |
| Windows apps | Mozilla Firefox ESR (pl) | no-fix |
| Windows apps | Mozilla Firefox ESR (pt-BR) | no-fix |
| Windows apps | Mozilla Firefox ESR (pt-PT) | no-fix |
| Windows apps | Mozilla Firefox ESR (rm) | no-fix |
| Windows apps | Mozilla Firefox ESR (ro) | no-fix |
| Windows apps | Mozilla Firefox ESR (ru) | no-fix |
| Windows apps | Mozilla Firefox ESR (sat) | no-fix |
| Windows apps | Mozilla Firefox ESR (sc) | no-fix |
| Windows apps | Mozilla Firefox ESR (sco) | no-fix |
| Windows apps | Mozilla Firefox ESR (si) | no-fix |
| Windows apps | Mozilla Firefox ESR (sk) | no-fix |
| Windows apps | Mozilla Firefox ESR (skr) | no-fix |
| Windows apps | Mozilla Firefox ESR (sl) | no-fix |
| Windows apps | Mozilla Firefox ESR (son) | no-fix |
| Windows apps | Mozilla Firefox ESR (sq) | no-fix |
| Windows apps | Mozilla Firefox ESR (sr) | no-fix |
| Windows apps | Mozilla Firefox ESR (sv-SE) | no-fix |
| Windows apps | Mozilla Firefox ESR (szl) | no-fix |
| Windows apps | Mozilla Firefox ESR (ta) | no-fix |
| Windows apps | Mozilla Firefox ESR (te) | no-fix |
| Windows apps | Mozilla Firefox ESR (tg) | no-fix |
| Windows apps | Mozilla Firefox ESR (th) | no-fix |
| Windows apps | Mozilla Firefox ESR (tl) | no-fix |
| Windows apps | Mozilla Firefox ESR (tr) | no-fix |
| Windows apps | Mozilla Firefox ESR (trs) | no-fix |
| Windows apps | Mozilla Firefox ESR (uk) | no-fix |
| Windows apps | Mozilla Firefox ESR (ur) | no-fix |
| Windows apps | Mozilla Firefox ESR (uz) | no-fix |
| Windows apps | Mozilla Firefox ESR (vi) | 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.