# CVE-2026-5731: Memory safety bugs fixed in Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird ESR 140.9.1, Firefox 149.0.2 and Thunderbird 149.0.2

CVE-2026-5731 is fixed in 241 products on 2 platforms, first by Mozilla Firefox ESR (ach) 140.9.1, released April 7, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-5731
- Priority: High
- CVSS: 9.8 (important)
- EPSS: 0.0035
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 7, 2026
- Weakness: CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-5731

## Description

Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Firefox ESR (ach) | 140.9.1 | [Mozilla Firefox ESR (ach) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ach-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (af) | 140.9.1 | [Mozilla Firefox ESR (af) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.af-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (an) | 140.9.1 | [Mozilla Firefox ESR (an) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.an-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ar) | 140.9.1 | [Mozilla Firefox ESR (ar) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ar-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ast) | 140.9.1 | [Mozilla Firefox ESR (ast) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ast-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (az) | 140.9.1 | [Mozilla Firefox ESR (az) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.az-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (be) | 140.9.1 | [Mozilla Firefox ESR (be) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.be-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (bg) | 140.9.1 | [Mozilla Firefox ESR (bg) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.bg-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (bn) | 140.9.1 | [Mozilla Firefox ESR (bn) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.bn-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (br) | 140.9.1 | [Mozilla Firefox ESR (br) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.br-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (bs) | 140.9.1 | [Mozilla Firefox ESR (bs) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.bs-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ca) | 140.9.1 | [Mozilla Firefox ESR (ca) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ca-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ca-valencia) | 140.9.1 | [Mozilla Firefox ESR (ca-valencia) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ca-valencia-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (cak) | 140.9.1 | [Mozilla Firefox ESR (cak) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.cak-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (cs) | 140.9.1 | [Mozilla Firefox ESR (cs) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.cs-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (cy) | 140.9.1 | [Mozilla Firefox ESR (cy) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.cy-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (da) | 140.9.1 | [Mozilla Firefox ESR (da) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.da-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (de) | 140.9.1 | [Mozilla Firefox ESR (de) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.de-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (dsb) | 140.9.1 | [Mozilla Firefox ESR (dsb) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.dsb-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (el) | 140.9.1 | [Mozilla Firefox ESR (el) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.el-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (en-CA) | 140.9.1 | [Mozilla Firefox ESR (en-CA) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.en-ca-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (en-GB) | 140.9.1 | [Mozilla Firefox ESR (en-GB) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.en-gb-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (en-US) | 140.9.1 | [Mozilla Firefox ESR (en-US) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (eo) | 140.9.1 | [Mozilla Firefox ESR (eo) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.eo-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (es-AR) | 140.9.1 | [Mozilla Firefox ESR (es-AR) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-ar-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (es-CL) | 140.9.1 | [Mozilla Firefox ESR (es-CL) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-cl-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (es-ES) | 140.9.1 | [Mozilla Firefox ESR (es-ES) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-es-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (es-MX) | 140.9.1 | [Mozilla Firefox ESR (es-MX) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.es-mx-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (et) | 140.9.1 | [Mozilla Firefox ESR (et) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.et-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (eu) | 140.9.1 | [Mozilla Firefox ESR (eu) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.eu-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (fa) | 140.9.1 | [Mozilla Firefox ESR (fa) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fa-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ff) | 140.9.1 | [Mozilla Firefox ESR (ff) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ff-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (fi) | 140.9.1 | [Mozilla Firefox ESR (fi) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fi-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (fr) | 140.9.1 | [Mozilla Firefox ESR (fr) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fr-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (fur) | 140.9.1 | [Mozilla Firefox ESR (fur) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fur-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (fy-NL) | 140.9.1 | [Mozilla Firefox ESR (fy-NL) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.fy-nl-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ga-IE) | 140.9.1 | [Mozilla Firefox ESR (ga-IE) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ga-ie-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (gd) | 140.9.1 | [Mozilla Firefox ESR (gd) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gd-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (gl) | 140.9.1 | [Mozilla Firefox ESR (gl) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gl-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (gn) | 140.9.1 | [Mozilla Firefox ESR (gn) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gn-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (gu-IN) | 140.9.1 | [Mozilla Firefox ESR (gu-IN) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.gu-in-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (he) | 140.9.1 | [Mozilla Firefox ESR (he) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.he-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (hi-IN) | 140.9.1 | [Mozilla Firefox ESR (hi-IN) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hi-in-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (hr) | 140.9.1 | [Mozilla Firefox ESR (hr) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hr-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (hsb) | 140.9.1 | [Mozilla Firefox ESR (hsb) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hsb-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (hu) | 140.9.1 | [Mozilla Firefox ESR (hu) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hu-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (hy-AM) | 140.9.1 | [Mozilla Firefox ESR (hy-AM) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.hy-am-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ia) | 140.9.1 | [Mozilla Firefox ESR (ia) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ia-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (id) | 140.9.1 | [Mozilla Firefox ESR (id) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.id-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (is) | 140.9.1 | [Mozilla Firefox ESR (is) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.is-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (it) | 140.9.1 | [Mozilla Firefox ESR (it) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.it-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ja) | 140.9.1 | [Mozilla Firefox ESR (ja) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ja-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ka) | 140.9.1 | [Mozilla Firefox ESR (ka) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ka-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (kab) | 140.9.1 | [Mozilla Firefox ESR (kab) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.kab-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (kk) | 140.9.1 | [Mozilla Firefox ESR (kk) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.kk-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (km) | 140.9.1 | [Mozilla Firefox ESR (km) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.km-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (kn) | 140.9.1 | [Mozilla Firefox ESR (kn) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.kn-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ko) | 140.9.1 | [Mozilla Firefox ESR (ko) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ko-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (lij) | 140.9.1 | [Mozilla Firefox ESR (lij) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.lij-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (lt) | 140.9.1 | [Mozilla Firefox ESR (lt) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.lt-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (lv) | 140.9.1 | [Mozilla Firefox ESR (lv) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.lv-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (mk) | 140.9.1 | [Mozilla Firefox ESR (mk) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.mk-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (mr) | 140.9.1 | [Mozilla Firefox ESR (mr) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.mr-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ms) | 140.9.1 | [Mozilla Firefox ESR (ms) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ms-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (my) | 140.9.1 | [Mozilla Firefox ESR (my) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.my-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (nb-NO) | 140.9.1 | [Mozilla Firefox ESR (nb-NO) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.nb-no-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (ne-NP) | 140.9.1 | [Mozilla Firefox ESR (ne-NP) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ne-np-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (nl) | 140.9.1 | [Mozilla Firefox ESR (nl) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.nl-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (nn-NO) | 140.9.1 | [Mozilla Firefox ESR (nn-NO) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.nn-no-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (oc) | 140.9.1 | [Mozilla Firefox ESR (oc) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.oc-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (pa-IN) | 140.9.1 | [Mozilla Firefox ESR (pa-IN) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pa-in-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (pl) | 140.9.1 | [Mozilla Firefox ESR (pl) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pl-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (pt-BR) | 140.9.1 | [Mozilla Firefox ESR (pt-BR) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pt-br-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (pt-PT) | 140.9.1 | [Mozilla Firefox ESR (pt-PT) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.pt-pt-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Firefox ESR (rm) | 140.10.0 | [Mozilla Firefox ESR (rm) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.rm-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (ro) | 140.10.0 | [Mozilla Firefox ESR (ro) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ro-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (ru) | 140.10.0 | [Mozilla Firefox ESR (ru) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ru-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (sc) | 140.10.0 | [Mozilla Firefox ESR (sc) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sc-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (sco) | 140.10.0 | [Mozilla Firefox ESR (sco) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sco-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (si) | 140.10.0 | [Mozilla Firefox ESR (si) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.si-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (sk) | 140.10.0 | [Mozilla Firefox ESR (sk) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sk-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (sl) | 140.10.0 | [Mozilla Firefox ESR (sl) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sl-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (son) | 140.10.0 | [Mozilla Firefox ESR (son) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.son-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (sq) | 140.10.0 | [Mozilla Firefox ESR (sq) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sq-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (sr) | 140.10.0 | [Mozilla Firefox ESR (sr) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sr-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (sv-SE) | 140.10.0 | [Mozilla Firefox ESR (sv-SE) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.sv-se-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (szl) | 140.10.0 | [Mozilla Firefox ESR (szl) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.szl-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (ta) | 140.10.0 | [Mozilla Firefox ESR (ta) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ta-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (te) | 140.10.0 | [Mozilla Firefox ESR (te) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.te-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (tg) | 140.10.0 | [Mozilla Firefox ESR (tg) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.tg-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (th) | 140.10.0 | [Mozilla Firefox ESR (th) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.th-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (tl) | 140.10.0 | [Mozilla Firefox ESR (tl) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.tl-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (tr) | 140.10.0 | [Mozilla Firefox ESR (tr) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.tr-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (trs) | 140.10.0 | [Mozilla Firefox ESR (trs) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.trs-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (uk) | 140.10.0 | [Mozilla Firefox ESR (uk) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.uk-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (ur) | 140.10.0 | [Mozilla Firefox ESR (ur) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.ur-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (uz) | 140.10.0 | [Mozilla Firefox ESR (uz) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.uz-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (vi) | 140.10.0 | [Mozilla Firefox ESR (vi) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.vi-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (xh) | 140.10.0 | [Mozilla Firefox ESR (xh) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.xh-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (zh-CN) | 140.10.0 | [Mozilla Firefox ESR (zh-CN) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.zh-cn-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Firefox ESR (zh-TW) | 140.10.0 | [Mozilla Firefox ESR (zh-TW) 140.10.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr.zh-tw-140.10.0.md) | Apr 21, 2026 |
| Windows apps | Mozilla Thunderbird (af) | 149.0.2 | [Mozilla Thunderbird (af) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.af-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (ar) | 149.0.2 | [Mozilla Thunderbird (ar) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ar-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (ast) | 149.0.2 | [Mozilla Thunderbird (ast) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ast-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (be) | 149.0.2 | [Mozilla Thunderbird (be) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.be-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (bg) | 149.0.2 | [Mozilla Thunderbird (bg) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.bg-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (br) | 149.0.2 | [Mozilla Thunderbird (br) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.br-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (ca) | 149.0.2 | [Mozilla Thunderbird (ca) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ca-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (cak) | 149.0.2 | [Mozilla Thunderbird (cak) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cak-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (cs) | 149.0.2 | [Mozilla Thunderbird (cs) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cs-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (cy) | 149.0.2 | [Mozilla Thunderbird (cy) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cy-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (da) | 149.0.2 | [Mozilla Thunderbird (da) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.da-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (de) | 149.0.2 | [Mozilla Thunderbird (de) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.de-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (dsb) | 149.0.2 | [Mozilla Thunderbird (dsb) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.dsb-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (el) | 149.0.2 | [Mozilla Thunderbird (el) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.el-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (en-CA) | 149.0.2 | [Mozilla Thunderbird (en-CA) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-ca-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (en-GB) | 149.0.2 | [Mozilla Thunderbird (en-GB) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-gb-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (en-US) | 149.0.2 | [Mozilla Thunderbird (en-US) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (es-AR) | 149.0.2 | [Mozilla Thunderbird (es-AR) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-ar-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (es-ES) | 149.0.2 | [Mozilla Thunderbird (es-ES) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-es-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (es-MX) | 149.0.2 | [Mozilla Thunderbird (es-MX) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-mx-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (et) | 149.0.2 | [Mozilla Thunderbird (et) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.et-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (eu) | 149.0.2 | [Mozilla Thunderbird (eu) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.eu-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (fi) | 149.0.2 | [Mozilla Thunderbird (fi) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fi-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (fr) | 149.0.2 | [Mozilla Thunderbird (fr) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fr-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (fy-NL) | 149.0.2 | [Mozilla Thunderbird (fy-NL) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fy-nl-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (ga-IE) | 149.0.2 | [Mozilla Thunderbird (ga-IE) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ga-ie-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (gd) | 149.0.2 | [Mozilla Thunderbird (gd) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gd-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (gl) | 149.0.2 | [Mozilla Thunderbird (gl) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gl-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (he) | 149.0.2 | [Mozilla Thunderbird (he) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.he-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (hr) | 149.0.2 | [Mozilla Thunderbird (hr) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hr-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (hsb) | 149.0.2 | [Mozilla Thunderbird (hsb) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hsb-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (hu) | 149.0.2 | [Mozilla Thunderbird (hu) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hu-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (hy-AM) | 149.0.2 | [Mozilla Thunderbird (hy-AM) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hy-am-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (id) | 149.0.2 | [Mozilla Thunderbird (id) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.id-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (is) | 149.0.2 | [Mozilla Thunderbird (is) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.is-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (it) | 149.0.2 | [Mozilla Thunderbird (it) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.it-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (ja) | 149.0.2 | [Mozilla Thunderbird (ja) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ja-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (ka) | 149.0.2 | [Mozilla Thunderbird (ka) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ka-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (kab) | 149.0.2 | [Mozilla Thunderbird (kab) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kab-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (kk) | 149.0.2 | [Mozilla Thunderbird (kk) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kk-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (ko) | 149.0.2 | [Mozilla Thunderbird (ko) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ko-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (lt) | 149.0.2 | [Mozilla Thunderbird (lt) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lt-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (lv) | 149.0.2 | [Mozilla Thunderbird (lv) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lv-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (ms) | 149.0.2 | [Mozilla Thunderbird (ms) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ms-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (nb-NO) | 149.0.2 | [Mozilla Thunderbird (nb-NO) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nb-no-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (nl) | 149.0.2 | [Mozilla Thunderbird (nl) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nl-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (nn-NO) | 149.0.2 | [Mozilla Thunderbird (nn-NO) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nn-no-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (pa-IN) | 149.0.2 | [Mozilla Thunderbird (pa-IN) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pa-in-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (pl) | 149.0.2 | [Mozilla Thunderbird (pl) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pl-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (pt-BR) | 149.0.2 | [Mozilla Thunderbird (pt-BR) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-br-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (pt-PT) | 149.0.2 | [Mozilla Thunderbird (pt-PT) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-pt-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (rm) | 149.0.2 | [Mozilla Thunderbird (rm) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.rm-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (ro) | 149.0.2 | [Mozilla Thunderbird (ro) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ro-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (ru) | 149.0.2 | [Mozilla Thunderbird (ru) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ru-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (sk) | 149.0.2 | [Mozilla Thunderbird (sk) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sk-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (sl) | 149.0.2 | [Mozilla Thunderbird (sl) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sl-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (sq) | 149.0.2 | [Mozilla Thunderbird (sq) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sq-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (sr) | 149.0.2 | [Mozilla Thunderbird (sr) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sr-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (sv-SE) | 149.0.2 | [Mozilla Thunderbird (sv-SE) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sv-se-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (th) | 149.0.2 | [Mozilla Thunderbird (th) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.th-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (tr) | 149.0.2 | [Mozilla Thunderbird (tr) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.tr-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (uk) | 149.0.2 | [Mozilla Thunderbird (uk) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uk-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (uz) | 149.0.2 | [Mozilla Thunderbird (uz) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uz-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (vi) | 149.0.2 | [Mozilla Thunderbird (vi) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.vi-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (zh-CN) | 149.0.2 | [Mozilla Thunderbird (zh-CN) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-cn-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird (zh-TW) | 149.0.2 | [Mozilla Thunderbird (zh-TW) 149.0.2](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-tw-149.0.2.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (af) | 140.9.1 | [Mozilla Thunderbird ESR (af) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.af-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ar) | 140.9.1 | [Mozilla Thunderbird ESR (ar) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ar-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ast) | 140.9.1 | [Mozilla Thunderbird ESR (ast) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ast-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (be) | 140.9.1 | [Mozilla Thunderbird ESR (be) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.be-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (bg) | 140.9.1 | [Mozilla Thunderbird ESR (bg) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.bg-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (br) | 140.9.1 | [Mozilla Thunderbird ESR (br) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.br-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ca) | 140.9.1 | [Mozilla Thunderbird ESR (ca) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ca-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (cak) | 140.9.1 | [Mozilla Thunderbird ESR (cak) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cak-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (cs) | 140.9.1 | [Mozilla Thunderbird ESR (cs) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cs-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (cy) | 140.9.1 | [Mozilla Thunderbird ESR (cy) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cy-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (da) | 140.9.1 | [Mozilla Thunderbird ESR (da) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.da-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (de) | 140.9.1 | [Mozilla Thunderbird ESR (de) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.de-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (dsb) | 140.9.1 | [Mozilla Thunderbird ESR (dsb) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.dsb-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (el) | 140.9.1 | [Mozilla Thunderbird ESR (el) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.el-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (en-CA) | 140.9.1 | [Mozilla Thunderbird ESR (en-CA) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.en-ca-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (en-GB) | 140.9.1 | [Mozilla Thunderbird ESR (en-GB) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.en-gb-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (en-US) | 140.9.1 | [Mozilla Thunderbird ESR (en-US) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (es-AR) | 140.9.1 | [Mozilla Thunderbird ESR (es-AR) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-ar-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (es-ES) | 140.9.1 | [Mozilla Thunderbird ESR (es-ES) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-es-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (es-MX) | 140.9.1 | [Mozilla Thunderbird ESR (es-MX) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-mx-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (et) | 140.9.1 | [Mozilla Thunderbird ESR (et) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.et-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (eu) | 140.9.1 | [Mozilla Thunderbird ESR (eu) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.eu-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (fi) | 140.9.1 | [Mozilla Thunderbird ESR (fi) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fi-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (fr) | 140.9.1 | [Mozilla Thunderbird ESR (fr) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fr-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (fy-NL) | 140.9.1 | [Mozilla Thunderbird ESR (fy-NL) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fy-nl-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ga-IE) | 140.9.1 | [Mozilla Thunderbird ESR (ga-IE) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ga-ie-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (gd) | 140.9.1 | [Mozilla Thunderbird ESR (gd) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.gd-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (gl) | 140.9.1 | [Mozilla Thunderbird ESR (gl) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.gl-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (he) | 140.9.1 | [Mozilla Thunderbird ESR (he) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.he-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (hr) | 140.9.1 | [Mozilla Thunderbird ESR (hr) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hr-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (hsb) | 140.9.1 | [Mozilla Thunderbird ESR (hsb) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hsb-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (hu) | 140.9.1 | [Mozilla Thunderbird ESR (hu) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hu-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (hy-AM) | 140.9.1 | [Mozilla Thunderbird ESR (hy-AM) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hy-am-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (id) | 140.9.1 | [Mozilla Thunderbird ESR (id) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.id-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (is) | 140.9.1 | [Mozilla Thunderbird ESR (is) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.is-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (it) | 140.9.1 | [Mozilla Thunderbird ESR (it) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.it-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ja) | 140.9.1 | [Mozilla Thunderbird ESR (ja) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ja-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ka) | 140.9.1 | [Mozilla Thunderbird ESR (ka) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ka-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (kab) | 140.9.1 | [Mozilla Thunderbird ESR (kab) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.kab-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (kk) | 140.9.1 | [Mozilla Thunderbird ESR (kk) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.kk-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ko) | 140.9.1 | [Mozilla Thunderbird ESR (ko) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ko-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (lt) | 140.9.1 | [Mozilla Thunderbird ESR (lt) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.lt-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (lv) | 140.9.1 | [Mozilla Thunderbird ESR (lv) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.lv-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ms) | 140.9.1 | [Mozilla Thunderbird ESR (ms) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ms-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (nb-NO) | 140.9.1 | [Mozilla Thunderbird ESR (nb-NO) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nb-no-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (nl) | 140.9.1 | [Mozilla Thunderbird ESR (nl) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nl-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (nn-NO) | 140.9.1 | [Mozilla Thunderbird ESR (nn-NO) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nn-no-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (pa-IN) | 140.9.1 | [Mozilla Thunderbird ESR (pa-IN) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pa-in-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (pl) | 140.9.1 | [Mozilla Thunderbird ESR (pl) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pl-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (pt-BR) | 140.9.1 | [Mozilla Thunderbird ESR (pt-BR) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pt-br-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (pt-PT) | 140.9.1 | [Mozilla Thunderbird ESR (pt-PT) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pt-pt-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (rm) | 140.9.1 | [Mozilla Thunderbird ESR (rm) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.rm-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ro) | 140.9.1 | [Mozilla Thunderbird ESR (ro) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ro-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ru) | 140.9.1 | [Mozilla Thunderbird ESR (ru) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ru-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (sk) | 140.9.1 | [Mozilla Thunderbird ESR (sk) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sk-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (sl) | 140.9.1 | [Mozilla Thunderbird ESR (sl) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sl-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (sq) | 140.9.1 | [Mozilla Thunderbird ESR (sq) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sq-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (sr) | 140.9.1 | [Mozilla Thunderbird ESR (sr) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sr-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (sv-SE) | 140.9.1 | [Mozilla Thunderbird ESR (sv-SE) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sv-se-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (th) | 140.9.1 | [Mozilla Thunderbird ESR (th) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.th-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (tr) | 140.9.1 | [Mozilla Thunderbird ESR (tr) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.tr-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (uk) | 140.9.1 | [Mozilla Thunderbird ESR (uk) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.uk-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (uz) | 140.9.1 | [Mozilla Thunderbird ESR (uz) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.uz-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (vi) | 140.9.1 | [Mozilla Thunderbird ESR (vi) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.vi-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (zh-CN) | 140.9.1 | [Mozilla Thunderbird ESR (zh-CN) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.zh-cn-140.9.1.md) | Apr 7, 2026 |
| Windows apps | Mozilla Thunderbird ESR (zh-TW) | 140.9.1 | [Mozilla Thunderbird ESR (zh-TW) 140.9.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.zh-tw-140.9.1.md) | Apr 7, 2026 |
| Linux | MozillaFirefox opensuse-leap 16.0 | 140.9.1-160000.1.1 | [OPENSUSE-SU-2026:20486-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20486-1.md) | Apr 9, 2026 |
| Linux | MozillaFirefox sles 15.6 | 140.9.1-150200.152.228.1 | [SUSE-SU-2026:1322-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1322-1.md) | Apr 14, 2026 |
| Linux | MozillaFirefox sles 15.7 | 140.9.1-150200.152.228.1 | [SUSE-SU-2026:1322-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1322-1.md) | Apr 14, 2026 |
| Linux | MozillaFirefox sles 16.0 | 140.9.1-160000.1.1 | [SUSE-SU-2026:21157-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-21157-1.md) | Apr 9, 2026 |
| Linux | MozillaThunderbird sles 15.7 | 140.9.1-150200.8.266.1 | [SUSE-SU-2026:1379-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-1379-1.md) | Apr 16, 2026 |
| Linux | firefox RHEL 10 | 140.9.1-1.el10_0 | [RHSA-2026:13665](https://patchblox.com/security/data/fix/linux/rhsa-2026-13665.md) | Apr 15, 2026 |
| Linux | firefox RHEL 8 | 0:140.9.1-1.el8_10 | [RHSA-2026:8052](https://patchblox.com/security/data/fix/linux/rhsa-2026-8052.md) | Apr 15, 2026 |
| Linux | firefox RHEL 9 | 0:140.9.1-1.el9_7 | [RHSA-2026:7671](https://patchblox.com/security/data/fix/linux/rhsa-2026-7671.md) | Apr 15, 2026 |
| Linux | firefox almalinux 10 | 140.9.1-1.el10_1 | [ALSA-2026:7672](https://patchblox.com/security/data/fix/linux/alsa-2026-7672.md) | Apr 13, 2026 |
| Linux | firefox almalinux 8 | 140.9.1-1.el8_10.alma.1 | [ALSA-2026:8052](https://patchblox.com/security/data/fix/linux/alsa-2026-8052.md) | Apr 14, 2026 |
| Linux | firefox almalinux 9 | 140.9.1-1.el9_7.alma.1 | [ALSA-2026:7671](https://patchblox.com/security/data/fix/linux/alsa-2026-7671.md) | Apr 13, 2026 |
| Linux | firefox amzn 2023 | 140.9.1-1.amzn2023.0.1 | [ALAS2023-2026-1621](https://patchblox.com/security/data/fix/linux/alas2023-2026-1621.md) | Apr 27, 2026 |
| Linux | firefox ol 10 | 0:140.9.1-1.0.1.el10_1 | [ELSA-2026-7672](https://patchblox.com/security/data/fix/linux/elsa-2026-7672.md) | Apr 13, 2026 |
| Linux | firefox ol 8 | 0:140.9.1-1.0.1.el8_10 | [ELSA-2026-8052](https://patchblox.com/security/data/fix/linux/elsa-2026-8052.md) | Apr 14, 2026 |
| Linux | firefox ol 9 | 0:140.9.1-1.0.1.el9_7 | [ELSA-2026-7671](https://patchblox.com/security/data/fix/linux/elsa-2026-7671.md) | Apr 13, 2026 |
| Linux | firefox rocky 10 | 0:140.9.1-1.el10_1 | [RLSA-2026:7672](https://patchblox.com/security/data/fix/linux/rlsa-2026-7672.md) | Apr 15, 2026 |
| Linux | firefox rocky 8 | 0:140.9.1-1.el8_10 | [RLSA-2026:8052](https://patchblox.com/security/data/fix/linux/rlsa-2026-8052.md) | Apr 16, 2026 |
| Linux | firefox rocky 9 | 0:140.9.1-1.el9_7 | [RLSA-2026:7671](https://patchblox.com/security/data/fix/linux/rlsa-2026-7671.md) | Apr 15, 2026 |
| Linux | firefox-debuginfo amzn 2023 | 140.9.1-1.amzn2023.0.1 | [ALAS2023-2026-1621](https://patchblox.com/security/data/fix/linux/alas2023-2026-1621.md) | Apr 27, 2026 |
| Linux | firefox-debugsource amzn 2023 | 140.9.1-1.amzn2023.0.1 | [ALAS2023-2026-1621](https://patchblox.com/security/data/fix/linux/alas2023-2026-1621.md) | Apr 27, 2026 |
| Linux | firefox-esr Debian 12.15 (bookworm) | 140.9.1esr-1~deb12u1 | [DEBIAN-CVE-2026-5731](https://patchblox.com/security/data/fix/linux/debian-cve-2026-5731.md) | Apr 7, 2026 |
| Linux | firefox-esr Debian 13.5 (trixie) | 140.9.1esr-1~deb13u1 | [DEBIAN-CVE-2026-5731](https://patchblox.com/security/data/fix/linux/debian-cve-2026-5731.md) | Apr 7, 2026 |
| Linux | firefox-esr Debian 14 | 140.9.1esr-1 | [DEBIAN-CVE-2026-5731](https://patchblox.com/security/data/fix/linux/debian-cve-2026-5731.md) | Apr 7, 2026 |
| Linux | firefox-x11 RHEL 9 | 0:140.9.1-1.el9_7 | [RHSA-2026:7671](https://patchblox.com/security/data/fix/linux/rhsa-2026-7671.md) | Apr 15, 2026 |
| Linux | firefox-x11 almalinux 9 | 140.9.1-1.el9_7.alma.1 | [ALSA-2026:7671](https://patchblox.com/security/data/fix/linux/alsa-2026-7671.md) | Apr 13, 2026 |
| Linux | firefox-x11 ol 9 | 0:140.9.1-1.0.1.el9_7 | [ELSA-2026-7671](https://patchblox.com/security/data/fix/linux/elsa-2026-7671.md) | Apr 13, 2026 |
| Linux | thunderbird Debian 12.15 (bookworm) | 1:140.9.1esr-1~deb12u1 | [DEBIAN-CVE-2026-5731](https://patchblox.com/security/data/fix/linux/debian-cve-2026-5731.md) | Apr 7, 2026 |
| Linux | thunderbird Debian 13.5 (trixie) | 1:140.9.1esr-1~deb13u1 | [DEBIAN-CVE-2026-5731](https://patchblox.com/security/data/fix/linux/debian-cve-2026-5731.md) | Apr 7, 2026 |
| Linux | thunderbird Debian 14 | 1:140.9.1esr-1 | [DEBIAN-CVE-2026-5731](https://patchblox.com/security/data/fix/linux/debian-cve-2026-5731.md) | Apr 7, 2026 |
| Linux | thunderbird RHEL 10 | 140.9.1-1.el10_0 | [RHSA-2026:11813](https://patchblox.com/security/data/fix/linux/rhsa-2026-11813.md) | Apr 30, 2026 |
| Linux | thunderbird RHEL 8 | 0:140.9.1-1.el8_10 | [RHSA-2026:9345](https://patchblox.com/security/data/fix/linux/rhsa-2026-9345.md) | Apr 30, 2026 |
| Linux | thunderbird RHEL 9 | 0:140.9.1-1.el9_7 | [RHSA-2026:8459](https://patchblox.com/security/data/fix/linux/rhsa-2026-8459.md) | Apr 30, 2026 |
| Linux | thunderbird almalinux 10 | 140.9.1-1.el10_1.alma.1 | [ALSA-2026:9638](https://patchblox.com/security/data/fix/linux/alsa-2026-9638.md) | Apr 22, 2026 |
| Linux | thunderbird almalinux 8 | 140.9.1-1.el8_10.alma.1 | [ALSA-2026:9345](https://patchblox.com/security/data/fix/linux/alsa-2026-9345.md) | Apr 21, 2026 |
| Linux | thunderbird almalinux 9 | 140.9.1-1.el9_7.alma.1 | [ALSA-2026:8459](https://patchblox.com/security/data/fix/linux/alsa-2026-8459.md) | Apr 16, 2026 |
| Linux | thunderbird ol 10 | 0:140.9.1-1.0.1.el10_1 | [ELSA-2026-9638](https://patchblox.com/security/data/fix/linux/elsa-2026-9638.md) | Apr 22, 2026 |
| Linux | thunderbird ol 8 | 0:140.9.1-1.0.1.el8_10 | [ELSA-2026-9345](https://patchblox.com/security/data/fix/linux/elsa-2026-9345.md) | Apr 21, 2026 |
| Linux | thunderbird ol 9 | 0:140.9.1-1.0.1.el9_7 | [ELSA-2026-8459](https://patchblox.com/security/data/fix/linux/elsa-2026-8459.md) | Apr 16, 2026 |
| Linux | thunderbird rocky 10 | 0:140.9.1-1.el10_1 | [RLSA-2026:9638](https://patchblox.com/security/data/fix/linux/rlsa-2026-9638.md) | Apr 24, 2026 |
| Linux | thunderbird rocky 8 | 0:140.9.1-1.el8_10 | [RLSA-2026:9345](https://patchblox.com/security/data/fix/linux/rlsa-2026-9345.md) | Apr 23, 2026 |
| Linux | thunderbird rocky 9 | 0:140.9.1-1.el9_7 | [RLSA-2026:8459](https://patchblox.com/security/data/fix/linux/rlsa-2026-8459.md) | Apr 19, 2026 |

---

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

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