# CVE-2026-100779: Use-after-free in the XSLT component

CVE-2026-100779 is fixed in 177 products on 3 platforms, first by Mozilla Firefox 157.0, released September 24, 2026. 200 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-2026-100779
- Priority: High
- CVSS: 8.8 (high)
- EPSS: 0.0033
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 29, 2026
- Weakness: CWE-416: Use After Free
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-100779

## Description

Use-after-free in the XSLT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox (ach) | 157.0 | [Mozilla Firefox (ach) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ach-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (af) | 157.0 | [Mozilla Firefox (af) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.af-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (an) | 157.0 | [Mozilla Firefox (an) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.an-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ar) | 157.0 | [Mozilla Firefox (ar) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ar-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ast) | 157.0 | [Mozilla Firefox (ast) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ast-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (az) | 157.0 | [Mozilla Firefox (az) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.az-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (be) | 157.0 | [Mozilla Firefox (be) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.be-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (bg) | 157.0 | [Mozilla Firefox (bg) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bg-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (bn) | 157.0 | [Mozilla Firefox (bn) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bn-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (br) | 157.0 | [Mozilla Firefox (br) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.br-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (bs) | 157.0 | [Mozilla Firefox (bs) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.bs-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ca) | 157.0 | [Mozilla Firefox (ca) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ca-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ca-valencia) | 157.0 | [Mozilla Firefox (ca-valencia) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ca-valencia-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (cak) | 157.0 | [Mozilla Firefox (cak) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cak-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (cs) | 157.0 | [Mozilla Firefox (cs) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cs-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (cy) | 157.0 | [Mozilla Firefox (cy) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.cy-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (da) | 157.0 | [Mozilla Firefox (da) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.da-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (de) | 157.0 | [Mozilla Firefox (de) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.de-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (dsb) | 157.0 | [Mozilla Firefox (dsb) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.dsb-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (el) | 157.0 | [Mozilla Firefox (el) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.el-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (en-CA) | 157.0 | [Mozilla Firefox (en-CA) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.en-ca-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (en-GB) | 157.0 | [Mozilla Firefox (en-GB) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.en-gb-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (en-US) | 157.0 | [Mozilla Firefox (en-US) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (eo) | 157.0 | [Mozilla Firefox (eo) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.eo-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (es-AR) | 157.0 | [Mozilla Firefox (es-AR) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-ar-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (es-CL) | 157.0 | [Mozilla Firefox (es-CL) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-cl-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (es-ES) | 157.0 | [Mozilla Firefox (es-ES) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-es-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (es-MX) | 157.0 | [Mozilla Firefox (es-MX) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.es-mx-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (et) | 157.0 | [Mozilla Firefox (et) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.et-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (eu) | 157.0 | [Mozilla Firefox (eu) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.eu-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (fa) | 157.0 | [Mozilla Firefox (fa) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fa-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ff) | 157.0 | [Mozilla Firefox (ff) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ff-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (fi) | 157.0 | [Mozilla Firefox (fi) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fi-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (fr) | 157.0 | [Mozilla Firefox (fr) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fr-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (fur) | 157.0 | [Mozilla Firefox (fur) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fur-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (fy-NL) | 157.0 | [Mozilla Firefox (fy-NL) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.fy-nl-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ga-IE) | 157.0 | [Mozilla Firefox (ga-IE) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ga-ie-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (gd) | 157.0 | [Mozilla Firefox (gd) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gd-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (gl) | 157.0 | [Mozilla Firefox (gl) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gl-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (gn) | 157.0 | [Mozilla Firefox (gn) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gn-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (gu-IN) | 157.0 | [Mozilla Firefox (gu-IN) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.gu-in-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (he) | 157.0 | [Mozilla Firefox (he) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.he-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (hi-IN) | 157.0 | [Mozilla Firefox (hi-IN) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hi-in-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (hr) | 157.0 | [Mozilla Firefox (hr) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hr-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (hsb) | 157.0 | [Mozilla Firefox (hsb) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hsb-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (hu) | 157.0 | [Mozilla Firefox (hu) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hu-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (hy-AM) | 157.0 | [Mozilla Firefox (hy-AM) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.hy-am-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ia) | 157.0 | [Mozilla Firefox (ia) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ia-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (id) | 157.0 | [Mozilla Firefox (id) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.id-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (is) | 157.0 | [Mozilla Firefox (is) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.is-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (it) | 157.0 | [Mozilla Firefox (it) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.it-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ja) | 157.0 | [Mozilla Firefox (ja) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ja-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ka) | 157.0 | [Mozilla Firefox (ka) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ka-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (kab) | 157.0 | [Mozilla Firefox (kab) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kab-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (kk) | 157.0 | [Mozilla Firefox (kk) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kk-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (km) | 157.0 | [Mozilla Firefox (km) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.km-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (kn) | 157.0 | [Mozilla Firefox (kn) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.kn-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ko) | 157.0 | [Mozilla Firefox (ko) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ko-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (lij) | 157.0 | [Mozilla Firefox (lij) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lij-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (lt) | 157.0 | [Mozilla Firefox (lt) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lt-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (lv) | 157.0 | [Mozilla Firefox (lv) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.lv-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (mk) | 157.0 | [Mozilla Firefox (mk) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.mk-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (mr) | 157.0 | [Mozilla Firefox (mr) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.mr-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ms) | 157.0 | [Mozilla Firefox (ms) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ms-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (my) | 157.0 | [Mozilla Firefox (my) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.my-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (nb-NO) | 157.0 | [Mozilla Firefox (nb-NO) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nb-no-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ne-NP) | 157.0 | [Mozilla Firefox (ne-NP) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ne-np-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (nl) | 157.0 | [Mozilla Firefox (nl) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nl-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (nn-NO) | 157.0 | [Mozilla Firefox (nn-NO) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.nn-no-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (oc) | 157.0 | [Mozilla Firefox (oc) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.oc-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (pa-IN) | 157.0 | [Mozilla Firefox (pa-IN) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pa-in-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (pl) | 157.0 | [Mozilla Firefox (pl) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pl-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (pt-BR) | 157.0 | [Mozilla Firefox (pt-BR) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pt-br-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (pt-PT) | 157.0 | [Mozilla Firefox (pt-PT) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.pt-pt-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (rm) | 157.0 | [Mozilla Firefox (rm) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.rm-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ro) | 157.0 | [Mozilla Firefox (ro) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ro-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ru) | 157.0 | [Mozilla Firefox (ru) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ru-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (sc) | 157.0 | [Mozilla Firefox (sc) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sc-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (sco) | 157.0 | [Mozilla Firefox (sco) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sco-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (si) | 157.0 | [Mozilla Firefox (si) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.si-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (sk) | 157.0 | [Mozilla Firefox (sk) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sk-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (sl) | 157.0 | [Mozilla Firefox (sl) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sl-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (son) | 157.0 | [Mozilla Firefox (son) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.son-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (sq) | 157.0 | [Mozilla Firefox (sq) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sq-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (sr) | 157.0 | [Mozilla Firefox (sr) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sr-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (sv-SE) | 157.0 | [Mozilla Firefox (sv-SE) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.sv-se-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (szl) | 157.0 | [Mozilla Firefox (szl) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.szl-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ta) | 157.0 | [Mozilla Firefox (ta) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ta-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (te) | 157.0 | [Mozilla Firefox (te) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.te-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (tg) | 157.0 | [Mozilla Firefox (tg) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tg-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (th) | 157.0 | [Mozilla Firefox (th) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.th-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (tl) | 157.0 | [Mozilla Firefox (tl) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tl-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (tr) | 157.0 | [Mozilla Firefox (tr) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.tr-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (trs) | 157.0 | [Mozilla Firefox (trs) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.trs-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (uk) | 157.0 | [Mozilla Firefox (uk) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.uk-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (ur) | 157.0 | [Mozilla Firefox (ur) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.ur-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (uz) | 157.0 | [Mozilla Firefox (uz) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.uz-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (vi) | 157.0 | [Mozilla Firefox (vi) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.vi-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (xh) | 157.0 | [Mozilla Firefox (xh) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.xh-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (zh-CN) | 157.0 | [Mozilla Firefox (zh-CN) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.zh-cn-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Firefox (zh-TW) | 157.0 | [Mozilla Firefox (zh-TW) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.zh-tw-157.0.md) | Sep 29, 2026 |
| Windows apps | Mozilla Thunderbird (af) | 157.0 | [Mozilla Thunderbird (af) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.af-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (ar) | 157.0 | [Mozilla Thunderbird (ar) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ar-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (ast) | 157.0 | [Mozilla Thunderbird (ast) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ast-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (be) | 157.0 | [Mozilla Thunderbird (be) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.be-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (bg) | 157.0 | [Mozilla Thunderbird (bg) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.bg-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (br) | 157.0 | [Mozilla Thunderbird (br) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.br-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (ca) | 157.0 | [Mozilla Thunderbird (ca) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ca-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (cak) | 157.0 | [Mozilla Thunderbird (cak) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cak-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (cs) | 157.0 | [Mozilla Thunderbird (cs) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cs-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (cy) | 157.0 | [Mozilla Thunderbird (cy) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cy-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (da) | 157.0 | [Mozilla Thunderbird (da) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.da-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (de) | 157.0 | [Mozilla Thunderbird (de) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.de-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (dsb) | 157.0 | [Mozilla Thunderbird (dsb) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.dsb-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (el) | 157.0 | [Mozilla Thunderbird (el) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.el-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (en-CA) | 157.0 | [Mozilla Thunderbird (en-CA) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-ca-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (en-GB) | 157.0 | [Mozilla Thunderbird (en-GB) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-gb-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (en-US) | 157.0 | [Mozilla Thunderbird (en-US) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (es-AR) | 157.0 | [Mozilla Thunderbird (es-AR) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-ar-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (es-ES) | 157.0 | [Mozilla Thunderbird (es-ES) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-es-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (es-MX) | 157.0 | [Mozilla Thunderbird (es-MX) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-mx-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (et) | 157.0 | [Mozilla Thunderbird (et) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.et-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (eu) | 157.0 | [Mozilla Thunderbird (eu) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.eu-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (fi) | 157.0 | [Mozilla Thunderbird (fi) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fi-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (fr) | 157.0 | [Mozilla Thunderbird (fr) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fr-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (fy-NL) | 157.0 | [Mozilla Thunderbird (fy-NL) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fy-nl-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (ga-IE) | 157.0 | [Mozilla Thunderbird (ga-IE) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ga-ie-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (gd) | 157.0 | [Mozilla Thunderbird (gd) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gd-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (gl) | 157.0 | [Mozilla Thunderbird (gl) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gl-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (he) | 157.0 | [Mozilla Thunderbird (he) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.he-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (hr) | 157.0 | [Mozilla Thunderbird (hr) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hr-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (hsb) | 157.0 | [Mozilla Thunderbird (hsb) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hsb-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (hu) | 157.0 | [Mozilla Thunderbird (hu) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hu-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (hy-AM) | 157.0 | [Mozilla Thunderbird (hy-AM) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hy-am-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (id) | 157.0 | [Mozilla Thunderbird (id) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.id-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (is) | 157.0 | [Mozilla Thunderbird (is) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.is-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (it) | 157.0 | [Mozilla Thunderbird (it) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.it-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (ja) | 157.0 | [Mozilla Thunderbird (ja) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ja-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (ka) | 157.0 | [Mozilla Thunderbird (ka) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ka-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (kab) | 157.0 | [Mozilla Thunderbird (kab) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kab-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (kk) | 157.0 | [Mozilla Thunderbird (kk) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kk-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (ko) | 157.0 | [Mozilla Thunderbird (ko) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ko-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (lt) | 157.0 | [Mozilla Thunderbird (lt) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lt-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (lv) | 157.0 | [Mozilla Thunderbird (lv) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lv-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (ms) | 157.0 | [Mozilla Thunderbird (ms) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ms-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (nb-NO) | 157.0 | [Mozilla Thunderbird (nb-NO) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nb-no-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (nl) | 157.0 | [Mozilla Thunderbird (nl) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nl-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (nn-NO) | 157.0 | [Mozilla Thunderbird (nn-NO) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nn-no-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (pa-IN) | 157.0 | [Mozilla Thunderbird (pa-IN) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pa-in-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (pl) | 157.0 | [Mozilla Thunderbird (pl) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pl-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (pt-BR) | 157.0 | [Mozilla Thunderbird (pt-BR) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-br-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (pt-PT) | 157.0 | [Mozilla Thunderbird (pt-PT) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-pt-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (rm) | 157.0 | [Mozilla Thunderbird (rm) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.rm-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (ro) | 157.0 | [Mozilla Thunderbird (ro) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ro-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (ru) | 157.0 | [Mozilla Thunderbird (ru) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ru-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (sk) | 157.0 | [Mozilla Thunderbird (sk) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sk-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (sl) | 157.0 | [Mozilla Thunderbird (sl) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sl-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (sq) | 157.0 | [Mozilla Thunderbird (sq) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sq-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (sr) | 157.0 | [Mozilla Thunderbird (sr) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sr-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (sv-SE) | 157.0 | [Mozilla Thunderbird (sv-SE) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sv-se-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (th) | 157.0 | [Mozilla Thunderbird (th) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.th-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (tr) | 157.0 | [Mozilla Thunderbird (tr) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.tr-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (uk) | 157.0 | [Mozilla Thunderbird (uk) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uk-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (uz) | 157.0 | [Mozilla Thunderbird (uz) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uz-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (vi) | 157.0 | [Mozilla Thunderbird (vi) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.vi-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (zh-CN) | 157.0 | [Mozilla Thunderbird (zh-CN) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-cn-157.0.md) | Sep 30, 2026 |
| Windows apps | Mozilla Thunderbird (zh-TW) | 157.0 | [Mozilla Thunderbird (zh-TW) 157.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-tw-157.0.md) | Sep 30, 2026 |
| macOS | Mozilla Firefox | 157.0 | [Mozilla Firefox 157.0](https://patchblox.com/security/data/fix/macos/org.mozilla.firefox-157.0.md) | Sep 24, 2026 |
| macOS | Mozilla Thunderbird | 157.0 | [Mozilla Thunderbird 157.0](https://patchblox.com/security/data/fix/macos/org.mozilla.thunderbird-157.0.md) | Sep 28, 2026 |
| Linux | MozillaFirefox opensuse-leap 16.0 | 153.4.0-160000.1.1 | [OPENSUSE-SU-2026:21980-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21980-1.md) | Sep 30, 2026 |
| Linux | MozillaFirefox sles 15.6 | 153.4.0-150400.157.11.1 | [SUSE-SU-2026:4545-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4545-1.md) | Oct 6, 2026 |
| Linux | MozillaFirefox sles 15.7 | 153.4.0-150400.157.11.1 | [SUSE-SU-2026:4545-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4545-1.md) | Oct 6, 2026 |
| Linux | MozillaFirefox sles 16.0 | 153.4.0-160000.1.1 | [SUSE-SU-2026:23981-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23981-1.md) | Sep 30, 2026 |
| Linux | MozillaThunderbird sles 15.7 | 153.4.0-150400.13.6.1 | [SUSE-SU-2026:4627-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-4627-1.md) | Nov 7, 2026 |
| Linux | firefox RHEL 10 | 140.17.0-1.el10_0 | [RHSA-2026:92227](https://patchblox.com/security/data/fix/linux/rhsa-2026-92227.md) | Oct 24, 2026 |
| Linux | firefox RHEL 8 | 0:140.17.0-1.el8_10 | [RHSA-2026:76850](https://patchblox.com/security/data/fix/linux/rhsa-2026-76850.md) | Oct 24, 2026 |
| Linux | firefox RHEL 9 | 0:140.17.0-1.el9_8 | [RHSA-2026:76761](https://patchblox.com/security/data/fix/linux/rhsa-2026-76761.md) | Oct 24, 2026 |
| Linux | firefox almalinux 10 | 140.17.0-1.el10_2 | [ALSA-2026:76764](https://patchblox.com/security/data/fix/linux/alsa-2026-76764.md) | Oct 6, 2026 |
| Linux | firefox almalinux 8 | 140.17.0-1.el8_10.alma.1 | [ALSA-2026:76850](https://patchblox.com/security/data/fix/linux/alsa-2026-76850.md) | Oct 6, 2026 |
| Linux | firefox almalinux 9 | 140.17.0-1.el9_8.alma.1 | [ALSA-2026:76761](https://patchblox.com/security/data/fix/linux/alsa-2026-76761.md) | Oct 6, 2026 |
| Linux | firefox amzn 2023 | 140.17.0-1.amzn2023.0.1 | [ALAS2023-2026-3214](https://patchblox.com/security/data/fix/linux/alas2023-2026-3214.md) | Nov 7, 2026 |
| Linux | firefox ol 10 | 0:140.17.0-1.0.1.el10_2 | [ELSA-2026-76764](https://patchblox.com/security/data/fix/linux/elsa-2026-76764.md) | Oct 7, 2026 |
| Linux | firefox ol 8 | 0:140.17.0-1.0.1.el8_10 | [ELSA-2026-76850](https://patchblox.com/security/data/fix/linux/elsa-2026-76850.md) | Oct 8, 2026 |
| Linux | firefox ol 9 | 0:140.17.0-1.0.1.el9_8 | [ELSA-2026-76761](https://patchblox.com/security/data/fix/linux/elsa-2026-76761.md) | Oct 7, 2026 |
| Linux | firefox rocky 10 | 0:140.17.0-1.el10_2 | [RLSA-2026:76764](https://patchblox.com/security/data/fix/linux/rlsa-2026-76764.md) | Nov 7, 2026 |
| Linux | firefox rocky 8 | 0:140.17.0-1.el8_10 | [RLSA-2026:76850](https://patchblox.com/security/data/fix/linux/rlsa-2026-76850.md) | Nov 7, 2026 |
| Linux | firefox rocky 9 | 0:140.17.0-1.el9_8 | [RLSA-2026:76761](https://patchblox.com/security/data/fix/linux/rlsa-2026-76761.md) | Nov 7, 2026 |
| Linux | firefox-debuginfo amzn 2023 | 140.17.0-1.amzn2023.0.1 | [ALAS2023-2026-3214](https://patchblox.com/security/data/fix/linux/alas2023-2026-3214.md) | Nov 7, 2026 |
| Linux | firefox-debugsource amzn 2023 | 140.17.0-1.amzn2023.0.1 | [ALAS2023-2026-3214](https://patchblox.com/security/data/fix/linux/alas2023-2026-3214.md) | Nov 7, 2026 |
| Linux | firefox-esr Debian 12.15 (bookworm) | 153.4.0esr-1~deb12u1 | [DEBIAN-CVE-2026-100779](https://patchblox.com/security/data/fix/linux/debian-cve-2026-100779.md) | Sep 30, 2026 |
| Linux | firefox-esr Debian 13.5 (trixie) | 153.4.0esr-1~deb13u1 | [DEBIAN-CVE-2026-100779](https://patchblox.com/security/data/fix/linux/debian-cve-2026-100779.md) | Sep 30, 2026 |
| Linux | firefox-esr Debian 14 | 153.4.0esr-1 | [DEBIAN-CVE-2026-100779](https://patchblox.com/security/data/fix/linux/debian-cve-2026-100779.md) | Sep 30, 2026 |
| Linux | firefox-x11 RHEL 9 | 0:140.17.0-1.el9_8 | [RHSA-2026:76761](https://patchblox.com/security/data/fix/linux/rhsa-2026-76761.md) | Oct 24, 2026 |
| Linux | firefox-x11 almalinux 9 | 140.17.0-1.el9_8.alma.1 | [ALSA-2026:76761](https://patchblox.com/security/data/fix/linux/alsa-2026-76761.md) | Oct 6, 2026 |
| Linux | firefox-x11 ol 9 | 0:140.17.0-1.0.1.el9_8 | [ELSA-2026-76761](https://patchblox.com/security/data/fix/linux/elsa-2026-76761.md) | Oct 7, 2026 |
| Linux | thunderbird Debian 12.15 (bookworm) | 1:140.17.0esr-1~deb12u1 | [DEBIAN-CVE-2026-100779](https://patchblox.com/security/data/fix/linux/debian-cve-2026-100779.md) | Sep 30, 2026 |
| Linux | thunderbird Debian 13.5 (trixie) | 1:140.17.0esr-1~deb13u1 | [DEBIAN-CVE-2026-100779](https://patchblox.com/security/data/fix/linux/debian-cve-2026-100779.md) | Sep 30, 2026 |
| Linux | thunderbird Debian 14 | 1:153.4.0esr-1 | [DEBIAN-CVE-2026-100779](https://patchblox.com/security/data/fix/linux/debian-cve-2026-100779.md) | Sep 30, 2026 |
| Linux | thunderbird RHEL 10 | 140.17.0-1.el10_0 | [RHSA-2026:85240](https://patchblox.com/security/data/fix/linux/rhsa-2026-85240.md) | Oct 24, 2026 |
| Linux | thunderbird RHEL 8 | 0:140.17.0-1.el8_10 | [RHSA-2026:90913](https://patchblox.com/security/data/fix/linux/rhsa-2026-90913.md) | Oct 29, 2026 |
| Linux | thunderbird RHEL 9 | 0:140.17.0-1.el9_8 | [RHSA-2026:80694](https://patchblox.com/security/data/fix/linux/rhsa-2026-80694.md) | Oct 24, 2026 |
| Linux | thunderbird almalinux 10 | 140.17.0-1.el10_2.alma.1 | [ALSA-2026:80674](https://patchblox.com/security/data/fix/linux/alsa-2026-80674.md) | Nov 7, 2026 |
| Linux | thunderbird almalinux 8 | 140.17.0-1.el8_10.alma.1 | [ALSA-2026:90913](https://patchblox.com/security/data/fix/linux/alsa-2026-90913.md) | Nov 7, 2026 |
| Linux | thunderbird almalinux 9 | 140.17.0-1.el9_8.alma.1 | [ALSA-2026:80694](https://patchblox.com/security/data/fix/linux/alsa-2026-80694.md) | Nov 7, 2026 |
| Linux | thunderbird ol 10 | 0:140.17.0-1.0.1.el10_2 | [ELSA-2026-80674](https://patchblox.com/security/data/fix/linux/elsa-2026-80674.md) | Nov 7, 2026 |
| Linux | thunderbird ol 8 | 0:140.17.0-1.0.1.el8_10 | [ELSA-2026-90913](https://patchblox.com/security/data/fix/linux/elsa-2026-90913.md) | Nov 7, 2026 |
| Linux | thunderbird ol 9 | 0:140.17.0-1.0.1.el9_8 | [ELSA-2026-80694](https://patchblox.com/security/data/fix/linux/elsa-2026-80694.md) | Nov 7, 2026 |
| Linux | thunderbird rocky 10 | 0:140.17.0-1.el10_2 | [RLSA-2026:80674](https://patchblox.com/security/data/fix/linux/rlsa-2026-80674.md) | Nov 7, 2026 |
| Linux | thunderbird rocky 8 | 0:140.17.0-1.el8_10 | [RLSA-2026:90913](https://patchblox.com/security/data/fix/linux/rlsa-2026-90913.md) | Nov 7, 2026 |
| Linux | thunderbird rocky 9 | 0:140.17.0-1.el9_8 | [RLSA-2026:80694](https://patchblox.com/security/data/fix/linux/rlsa-2026-80694.md) | Nov 7, 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 (en-US) | 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 |

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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.