CVE-2026-0891
Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147
CVE-2026-0891 is fixed in 450 products on 3 platforms, first by Firefox Developer Edition (ach) 147.0, released December 22, 2025. It is not reported as exploited. Patch Radar priority: High.
HighFixed on 3 platforms
CVSS
8.1
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0048
41st percentile
Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. 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 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Firefox Developer Edition (ach) | 147.0 | Firefox Developer Edition (ach) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (af) | 147.0 | Firefox Developer Edition (af) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (an) | 147.0 | Firefox Developer Edition (an) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ar) | 147.0 | Firefox Developer Edition (ar) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ast) | 147.0 | Firefox Developer Edition (ast) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (az) | 147.0 | Firefox Developer Edition (az) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (be) | 147.0 | Firefox Developer Edition (be) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (bg) | 147.0 | Firefox Developer Edition (bg) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (bn) | 147.0 | Firefox Developer Edition (bn) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (br) | 147.0 | Firefox Developer Edition (br) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (bs) | 147.0 | Firefox Developer Edition (bs) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ca) | 147.0 | Firefox Developer Edition (ca) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ca-valencia) | 147.0 | Firefox Developer Edition (ca-valencia) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (cak) | 147.0 | Firefox Developer Edition (cak) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (cs) | 147.0 | Firefox Developer Edition (cs) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (cy) | 147.0 | Firefox Developer Edition (cy) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (da) | 147.0 | Firefox Developer Edition (da) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (de) | 147.0 | Firefox Developer Edition (de) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (dsb) | 147.0 | Firefox Developer Edition (dsb) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (el) | 147.0 | Firefox Developer Edition (el) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (en-CA) | 147.0 | Firefox Developer Edition (en-CA) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (en-GB) | 147.0 | Firefox Developer Edition (en-GB) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (en-US) | 147.0 | Firefox Developer Edition (en-US) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (eo) | 147.0 | Firefox Developer Edition (eo) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (es-AR) | 147.0 | Firefox Developer Edition (es-AR) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (es-CL) | 147.0 | Firefox Developer Edition (es-CL) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (es-ES) | 147.0 | Firefox Developer Edition (es-ES) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (es-MX) | 147.0 | Firefox Developer Edition (es-MX) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (et) | 147.0 | Firefox Developer Edition (et) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (eu) | 147.0 | Firefox Developer Edition (eu) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (fa) | 147.0 | Firefox Developer Edition (fa) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ff) | 147.0 | Firefox Developer Edition (ff) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (fi) | 147.0 | Firefox Developer Edition (fi) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (fr) | 147.0 | Firefox Developer Edition (fr) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (fur) | 147.0 | Firefox Developer Edition (fur) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (fy-NL) | 147.0 | Firefox Developer Edition (fy-NL) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ga-IE) | 147.0 | Firefox Developer Edition (ga-IE) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (gd) | 147.0 | Firefox Developer Edition (gd) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (gl) | 147.0 | Firefox Developer Edition (gl) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (gn) | 147.0 | Firefox Developer Edition (gn) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (gu-IN) | 147.0 | Firefox Developer Edition (gu-IN) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (he) | 147.0 | Firefox Developer Edition (he) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (hi-IN) | 147.0 | Firefox Developer Edition (hi-IN) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (hr) | 147.0 | Firefox Developer Edition (hr) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (hsb) | 147.0 | Firefox Developer Edition (hsb) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (hu) | 147.0 | Firefox Developer Edition (hu) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (hy-AM) | 147.0 | Firefox Developer Edition (hy-AM) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ia) | 147.0 | Firefox Developer Edition (ia) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (id) | 147.0 | Firefox Developer Edition (id) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (is) | 147.0 | Firefox Developer Edition (is) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (it) | 147.0 | Firefox Developer Edition (it) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ja) | 147.0 | Firefox Developer Edition (ja) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ka) | 147.0 | Firefox Developer Edition (ka) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (kab) | 147.0 | Firefox Developer Edition (kab) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (kk) | 147.0 | Firefox Developer Edition (kk) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (km) | 147.0 | Firefox Developer Edition (km) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (kn) | 147.0 | Firefox Developer Edition (kn) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ko) | 147.0 | Firefox Developer Edition (ko) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (lij) | 147.0 | Firefox Developer Edition (lij) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (lt) | 147.0 | Firefox Developer Edition (lt) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (lv) | 147.0 | Firefox Developer Edition (lv) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (mk) | 147.0 | Firefox Developer Edition (mk) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (mr) | 147.0 | Firefox Developer Edition (mr) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ms) | 147.0 | Firefox Developer Edition (ms) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (my) | 147.0 | Firefox Developer Edition (my) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (nb-NO) | 147.0 | Firefox Developer Edition (nb-NO) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ne-NP) | 147.0 | Firefox Developer Edition (ne-NP) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (nl) | 147.0 | Firefox Developer Edition (nl) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (nn-NO) | 147.0 | Firefox Developer Edition (nn-NO) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (oc) | 147.0 | Firefox Developer Edition (oc) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (pa-IN) | 147.0 | Firefox Developer Edition (pa-IN) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (pl) | 147.0 | Firefox Developer Edition (pl) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (pt-BR) | 147.0 | Firefox Developer Edition (pt-BR) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (pt-PT) | 147.0 | Firefox Developer Edition (pt-PT) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (rm) | 147.0 | Firefox Developer Edition (rm) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ro) | 147.0 | Firefox Developer Edition (ro) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ru) | 147.0 | Firefox Developer Edition (ru) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (sc) | 147.0 | Firefox Developer Edition (sc) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (sco) | 147.0 | Firefox Developer Edition (sco) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (si) | 147.0 | Firefox Developer Edition (si) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (sk) | 147.0 | Firefox Developer Edition (sk) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (sl) | 147.0 | Firefox Developer Edition (sl) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (son) | 147.0 | Firefox Developer Edition (son) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (sq) | 147.0 | Firefox Developer Edition (sq) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (sr) | 147.0 | Firefox Developer Edition (sr) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (sv-SE) | 147.0 | Firefox Developer Edition (sv-SE) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (szl) | 147.0 | Firefox Developer Edition (szl) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ta) | 147.0 | Firefox Developer Edition (ta) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (te) | 147.0 | Firefox Developer Edition (te) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (tg) | 147.0 | Firefox Developer Edition (tg) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (th) | 147.0 | Firefox Developer Edition (th) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (tl) | 147.0 | Firefox Developer Edition (tl) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (tr) | 147.0 | Firefox Developer Edition (tr) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (trs) | 147.0 | Firefox Developer Edition (trs) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (uk) | 147.0 | Firefox Developer Edition (uk) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (ur) | 147.0 | Firefox Developer Edition (ur) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (uz) | 147.0 | Firefox Developer Edition (uz) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (vi) | 147.0 | Firefox Developer Edition (vi) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (xh) | 147.0 | Firefox Developer Edition (xh) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (zh-CN) | 147.0 | Firefox Developer Edition (zh-CN) 147.0 | Dec 22, 2025 |
| Firefox Developer Edition (zh-TW) | 147.0 | Firefox Developer Edition (zh-TW) 147.0 | Dec 22, 2025 |
| Mozilla Firefox (ach) | 147.0 | Mozilla Firefox (ach) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (af) | 147.0 | Mozilla Firefox (af) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (an) | 147.0 | Mozilla Firefox (an) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ar) | 147.0 | Mozilla Firefox (ar) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ast) | 147.0 | Mozilla Firefox (ast) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (az) | 147.0 | Mozilla Firefox (az) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (be) | 147.0 | Mozilla Firefox (be) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (bg) | 147.0 | Mozilla Firefox (bg) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (bn) | 147.0 | Mozilla Firefox (bn) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (br) | 147.0 | Mozilla Firefox (br) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (bs) | 147.0 | Mozilla Firefox (bs) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ca) | 147.0 | Mozilla Firefox (ca) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ca-valencia) | 147.0 | Mozilla Firefox (ca-valencia) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (cak) | 147.0 | Mozilla Firefox (cak) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (cs) | 147.0 | Mozilla Firefox (cs) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (cy) | 147.0 | Mozilla Firefox (cy) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (da) | 147.0 | Mozilla Firefox (da) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (de) | 147.0 | Mozilla Firefox (de) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (dsb) | 147.0 | Mozilla Firefox (dsb) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (el) | 147.0 | Mozilla Firefox (el) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (en-CA) | 147.0 | Mozilla Firefox (en-CA) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (en-GB) | 147.0 | Mozilla Firefox (en-GB) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (en-US) | 147.0 | Mozilla Firefox (en-US) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (eo) | 147.0 | Mozilla Firefox (eo) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (es-AR) | 147.0 | Mozilla Firefox (es-AR) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (es-CL) | 147.0 | Mozilla Firefox (es-CL) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (es-ES) | 147.0 | Mozilla Firefox (es-ES) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (es-MX) | 147.0 | Mozilla Firefox (es-MX) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (et) | 147.0 | Mozilla Firefox (et) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (eu) | 147.0 | Mozilla Firefox (eu) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (fa) | 147.0 | Mozilla Firefox (fa) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ff) | 147.0 | Mozilla Firefox (ff) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (fi) | 147.0 | Mozilla Firefox (fi) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (fr) | 147.0 | Mozilla Firefox (fr) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (fur) | 147.0 | Mozilla Firefox (fur) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (fy-NL) | 147.0 | Mozilla Firefox (fy-NL) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ga-IE) | 147.0 | Mozilla Firefox (ga-IE) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (gd) | 147.0 | Mozilla Firefox (gd) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (gl) | 147.0 | Mozilla Firefox (gl) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (gn) | 147.0 | Mozilla Firefox (gn) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (gu-IN) | 147.0 | Mozilla Firefox (gu-IN) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (he) | 147.0 | Mozilla Firefox (he) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (hi-IN) | 147.0 | Mozilla Firefox (hi-IN) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (hr) | 147.0 | Mozilla Firefox (hr) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (hsb) | 147.0 | Mozilla Firefox (hsb) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (hu) | 147.0 | Mozilla Firefox (hu) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (hy-AM) | 147.0 | Mozilla Firefox (hy-AM) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ia) | 147.0 | Mozilla Firefox (ia) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (id) | 147.0 | Mozilla Firefox (id) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (is) | 147.0 | Mozilla Firefox (is) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (it) | 147.0 | Mozilla Firefox (it) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ja) | 147.0 | Mozilla Firefox (ja) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ka) | 147.0 | Mozilla Firefox (ka) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (kab) | 147.0 | Mozilla Firefox (kab) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (kk) | 147.0 | Mozilla Firefox (kk) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (km) | 147.0 | Mozilla Firefox (km) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (kn) | 147.0 | Mozilla Firefox (kn) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ko) | 147.0 | Mozilla Firefox (ko) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (lij) | 147.0 | Mozilla Firefox (lij) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (lt) | 147.0 | Mozilla Firefox (lt) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (lv) | 147.0 | Mozilla Firefox (lv) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (mk) | 147.0 | Mozilla Firefox (mk) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (mr) | 147.0 | Mozilla Firefox (mr) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ms) | 147.0 | Mozilla Firefox (ms) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (my) | 147.0 | Mozilla Firefox (my) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (nb-NO) | 147.0 | Mozilla Firefox (nb-NO) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ne-NP) | 147.0 | Mozilla Firefox (ne-NP) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (nl) | 147.0 | Mozilla Firefox (nl) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (nn-NO) | 147.0 | Mozilla Firefox (nn-NO) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (oc) | 147.0 | Mozilla Firefox (oc) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (pa-IN) | 147.0 | Mozilla Firefox (pa-IN) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (pl) | 147.0 | Mozilla Firefox (pl) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (pt-BR) | 147.0 | Mozilla Firefox (pt-BR) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (pt-PT) | 147.0 | Mozilla Firefox (pt-PT) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (rm) | 147.0 | Mozilla Firefox (rm) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ro) | 147.0 | Mozilla Firefox (ro) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ru) | 147.0 | Mozilla Firefox (ru) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (sc) | 147.0 | Mozilla Firefox (sc) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (sco) | 147.0 | Mozilla Firefox (sco) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (si) | 147.0 | Mozilla Firefox (si) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (sk) | 147.0 | Mozilla Firefox (sk) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (sl) | 147.0 | Mozilla Firefox (sl) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (son) | 147.0 | Mozilla Firefox (son) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (sq) | 147.0 | Mozilla Firefox (sq) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (sr) | 147.0 | Mozilla Firefox (sr) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (sv-SE) | 147.0 | Mozilla Firefox (sv-SE) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (szl) | 147.0 | Mozilla Firefox (szl) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ta) | 147.0 | Mozilla Firefox (ta) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (te) | 147.0 | Mozilla Firefox (te) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (tg) | 147.0 | Mozilla Firefox (tg) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (th) | 147.0 | Mozilla Firefox (th) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (tl) | 147.0 | Mozilla Firefox (tl) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (tr) | 147.0 | Mozilla Firefox (tr) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (trs) | 147.0 | Mozilla Firefox (trs) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (uk) | 147.0 | Mozilla Firefox (uk) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (ur) | 147.0 | Mozilla Firefox (ur) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (uz) | 147.0 | Mozilla Firefox (uz) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (vi) | 147.0 | Mozilla Firefox (vi) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (xh) | 147.0 | Mozilla Firefox (xh) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (zh-CN) | 147.0 | Mozilla Firefox (zh-CN) 147.0 | Jan 13, 2026 |
| Mozilla Firefox (zh-TW) | 147.0 | Mozilla Firefox (zh-TW) 147.0 | Jan 13, 2026 |
| Mozilla Firefox ESR (ach) | 153.0.0 | Mozilla Firefox ESR (ach) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (af) | 153.0.0 | Mozilla Firefox ESR (af) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (an) | 153.0.0 | Mozilla Firefox ESR (an) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ar) | 153.0.0 | Mozilla Firefox ESR (ar) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ast) | 153.0.0 | Mozilla Firefox ESR (ast) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (az) | 153.0.0 | Mozilla Firefox ESR (az) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (be) | 153.0.0 | Mozilla Firefox ESR (be) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (bg) | 153.0.0 | Mozilla Firefox ESR (bg) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (bn) | 153.0.0 | Mozilla Firefox ESR (bn) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (br) | 153.0.0 | Mozilla Firefox ESR (br) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (bs) | 153.0.0 | Mozilla Firefox ESR (bs) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ca) | 153.0.0 | Mozilla Firefox ESR (ca) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ca-valencia) | 153.0.0 | Mozilla Firefox ESR (ca-valencia) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (cak) | 153.0.0 | Mozilla Firefox ESR (cak) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (cs) | 153.0.0 | Mozilla Firefox ESR (cs) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (cy) | 153.0.0 | Mozilla Firefox ESR (cy) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (da) | 153.0.0 | Mozilla Firefox ESR (da) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (de) | 153.0.0 | Mozilla Firefox ESR (de) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (dsb) | 153.0.0 | Mozilla Firefox ESR (dsb) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (el) | 153.0.0 | Mozilla Firefox ESR (el) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (en-CA) | 153.0.0 | Mozilla Firefox ESR (en-CA) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (en-GB) | 153.0.0 | Mozilla Firefox ESR (en-GB) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (en-US) | 153.0.0 | Mozilla Firefox ESR (en-US) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (eo) | 153.0.0 | Mozilla Firefox ESR (eo) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (es-AR) | 153.0.0 | Mozilla Firefox ESR (es-AR) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (es-CL) | 153.0.0 | Mozilla Firefox ESR (es-CL) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (es-ES) | 153.0.0 | Mozilla Firefox ESR (es-ES) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (es-MX) | 153.0.0 | Mozilla Firefox ESR (es-MX) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (et) | 153.0.0 | Mozilla Firefox ESR (et) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (eu) | 153.0.0 | Mozilla Firefox ESR (eu) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (fa) | 153.0.0 | Mozilla Firefox ESR (fa) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ff) | 153.0.0 | Mozilla Firefox ESR (ff) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (fi) | 153.0.0 | Mozilla Firefox ESR (fi) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (fr) | 153.0.0 | Mozilla Firefox ESR (fr) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (fur) | 153.0.0 | Mozilla Firefox ESR (fur) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (fy-NL) | 153.0.0 | Mozilla Firefox ESR (fy-NL) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ga-IE) | 153.0.0 | Mozilla Firefox ESR (ga-IE) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (gd) | 153.0.0 | Mozilla Firefox ESR (gd) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (gl) | 153.0.0 | Mozilla Firefox ESR (gl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (gn) | 153.0.0 | Mozilla Firefox ESR (gn) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (gu-IN) | 153.0.0 | Mozilla Firefox ESR (gu-IN) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (he) | 153.0.0 | Mozilla Firefox ESR (he) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (hi-IN) | 153.0.0 | Mozilla Firefox ESR (hi-IN) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (hr) | 153.0.0 | Mozilla Firefox ESR (hr) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (hsb) | 153.0.0 | Mozilla Firefox ESR (hsb) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (hu) | 153.0.0 | Mozilla Firefox ESR (hu) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (hy-AM) | 153.0.0 | Mozilla Firefox ESR (hy-AM) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ia) | 153.0.0 | Mozilla Firefox ESR (ia) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (id) | 153.0.0 | Mozilla Firefox ESR (id) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (is) | 153.0.0 | Mozilla Firefox ESR (is) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (it) | 153.0.0 | Mozilla Firefox ESR (it) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ja) | 153.0.0 | Mozilla Firefox ESR (ja) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ka) | 153.0.0 | Mozilla Firefox ESR (ka) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (kab) | 153.0.0 | Mozilla Firefox ESR (kab) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (kk) | 153.0.0 | Mozilla Firefox ESR (kk) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (km) | 153.0.0 | Mozilla Firefox ESR (km) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (kn) | 153.0.0 | Mozilla Firefox ESR (kn) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ko) | 153.0.0 | Mozilla Firefox ESR (ko) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (lij) | 153.0.0 | Mozilla Firefox ESR (lij) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (lt) | 153.0.0 | Mozilla Firefox ESR (lt) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (lv) | 153.0.0 | Mozilla Firefox ESR (lv) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (mk) | 153.0.0 | Mozilla Firefox ESR (mk) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (mr) | 153.0.0 | Mozilla Firefox ESR (mr) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ms) | 153.0.0 | Mozilla Firefox ESR (ms) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (my) | 153.0.0 | Mozilla Firefox ESR (my) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (nb-NO) | 153.0.0 | Mozilla Firefox ESR (nb-NO) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ne-NP) | 153.0.0 | Mozilla Firefox ESR (ne-NP) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (nl) | 153.0.0 | Mozilla Firefox ESR (nl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (nn-NO) | 153.0.0 | Mozilla Firefox ESR (nn-NO) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (oc) | 153.0.0 | Mozilla Firefox ESR (oc) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (pa-IN) | 153.0.0 | Mozilla Firefox ESR (pa-IN) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (pl) | 153.0.0 | Mozilla Firefox ESR (pl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (pt-BR) | 153.0.0 | Mozilla Firefox ESR (pt-BR) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (pt-PT) | 153.0.0 | Mozilla Firefox ESR (pt-PT) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (rm) | 153.0.0 | Mozilla Firefox ESR (rm) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ro) | 153.0.0 | Mozilla Firefox ESR (ro) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ru) | 153.0.0 | Mozilla Firefox ESR (ru) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sat) | 153.0.0 | Mozilla Firefox ESR (sat) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sc) | 153.0.0 | Mozilla Firefox ESR (sc) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sco) | 153.0.0 | Mozilla Firefox ESR (sco) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (si) | 153.0.0 | Mozilla Firefox ESR (si) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sk) | 153.0.0 | Mozilla Firefox ESR (sk) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sl) | 153.0.0 | Mozilla Firefox ESR (sl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (son) | 153.0.0 | Mozilla Firefox ESR (son) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sq) | 153.0.0 | Mozilla Firefox ESR (sq) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sr) | 153.0.0 | Mozilla Firefox ESR (sr) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (sv-SE) | 153.0.0 | Mozilla Firefox ESR (sv-SE) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (szl) | 153.0.0 | Mozilla Firefox ESR (szl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ta) | 153.0.0 | Mozilla Firefox ESR (ta) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (te) | 153.0.0 | Mozilla Firefox ESR (te) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (tg) | 153.0.0 | Mozilla Firefox ESR (tg) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (th) | 153.0.0 | Mozilla Firefox ESR (th) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (tl) | 153.0.0 | Mozilla Firefox ESR (tl) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (tr) | 153.0.0 | Mozilla Firefox ESR (tr) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (trs) | 153.0.0 | Mozilla Firefox ESR (trs) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (uk) | 153.0.0 | Mozilla Firefox ESR (uk) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (ur) | 153.0.0 | Mozilla Firefox ESR (ur) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (uz) | 153.0.0 | Mozilla Firefox ESR (uz) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (vi) | 153.0.0 | Mozilla Firefox ESR (vi) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (xh) | 153.0.0 | Mozilla Firefox ESR (xh) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (zh-CN) | 153.0.0 | Mozilla Firefox ESR (zh-CN) 153.0.0 | Jul 20, 2026 |
| Mozilla Firefox ESR (zh-TW) | 153.0.0 | Mozilla Firefox ESR (zh-TW) 153.0.0 | Jul 20, 2026 |
| Mozilla Thunderbird (af) | 147.0 | Mozilla Thunderbird (af) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (ar) | 147.0 | Mozilla Thunderbird (ar) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (ast) | 147.0 | Mozilla Thunderbird (ast) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (be) | 147.0 | Mozilla Thunderbird (be) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (bg) | 147.0 | Mozilla Thunderbird (bg) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (br) | 147.0 | Mozilla Thunderbird (br) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (ca) | 147.0 | Mozilla Thunderbird (ca) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (cak) | 147.0 | Mozilla Thunderbird (cak) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (cs) | 147.0 | Mozilla Thunderbird (cs) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (cy) | 147.0 | Mozilla Thunderbird (cy) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (da) | 147.0 | Mozilla Thunderbird (da) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (de) | 147.0 | Mozilla Thunderbird (de) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (dsb) | 147.0 | Mozilla Thunderbird (dsb) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (el) | 147.0 | Mozilla Thunderbird (el) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (en-CA) | 147.0 | Mozilla Thunderbird (en-CA) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (en-GB) | 147.0 | Mozilla Thunderbird (en-GB) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (en-US) | 147.0 | Mozilla Thunderbird (en-US) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (es-AR) | 147.0 | Mozilla Thunderbird (es-AR) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (es-ES) | 147.0 | Mozilla Thunderbird (es-ES) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (es-MX) | 147.0 | Mozilla Thunderbird (es-MX) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (et) | 147.0 | Mozilla Thunderbird (et) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (eu) | 147.0 | Mozilla Thunderbird (eu) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (fi) | 147.0 | Mozilla Thunderbird (fi) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (fr) | 147.0 | Mozilla Thunderbird (fr) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (fy-NL) | 147.0 | Mozilla Thunderbird (fy-NL) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (ga-IE) | 147.0 | Mozilla Thunderbird (ga-IE) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (gd) | 147.0 | Mozilla Thunderbird (gd) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (gl) | 147.0 | Mozilla Thunderbird (gl) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (he) | 147.0 | Mozilla Thunderbird (he) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (hr) | 147.0 | Mozilla Thunderbird (hr) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (hsb) | 147.0 | Mozilla Thunderbird (hsb) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (hu) | 147.0 | Mozilla Thunderbird (hu) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (hy-AM) | 147.0 | Mozilla Thunderbird (hy-AM) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (id) | 147.0 | Mozilla Thunderbird (id) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (is) | 147.0 | Mozilla Thunderbird (is) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (it) | 147.0 | Mozilla Thunderbird (it) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (ja) | 147.0 | Mozilla Thunderbird (ja) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (ka) | 147.0 | Mozilla Thunderbird (ka) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (kab) | 147.0 | Mozilla Thunderbird (kab) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (kk) | 147.0 | Mozilla Thunderbird (kk) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (ko) | 147.0 | Mozilla Thunderbird (ko) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (lt) | 147.0 | Mozilla Thunderbird (lt) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (lv) | 147.0 | Mozilla Thunderbird (lv) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (ms) | 147.0 | Mozilla Thunderbird (ms) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (nb-NO) | 147.0 | Mozilla Thunderbird (nb-NO) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (nl) | 147.0 | Mozilla Thunderbird (nl) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (nn-NO) | 147.0 | Mozilla Thunderbird (nn-NO) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (pa-IN) | 147.0 | Mozilla Thunderbird (pa-IN) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (pl) | 147.0 | Mozilla Thunderbird (pl) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (pt-BR) | 147.0 | Mozilla Thunderbird (pt-BR) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (pt-PT) | 147.0 | Mozilla Thunderbird (pt-PT) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (rm) | 147.0 | Mozilla Thunderbird (rm) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (ro) | 147.0 | Mozilla Thunderbird (ro) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (ru) | 147.0 | Mozilla Thunderbird (ru) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (sk) | 147.0 | Mozilla Thunderbird (sk) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (sl) | 147.0 | Mozilla Thunderbird (sl) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (sq) | 147.0 | Mozilla Thunderbird (sq) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (sr) | 147.0 | Mozilla Thunderbird (sr) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (sv-SE) | 147.0 | Mozilla Thunderbird (sv-SE) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (th) | 147.0 | Mozilla Thunderbird (th) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (tr) | 147.0 | Mozilla Thunderbird (tr) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (uk) | 147.0 | Mozilla Thunderbird (uk) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (uz) | 147.0 | Mozilla Thunderbird (uz) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (vi) | 147.0 | Mozilla Thunderbird (vi) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (zh-CN) | 147.0 | Mozilla Thunderbird (zh-CN) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird (zh-TW) | 147.0 | Mozilla Thunderbird (zh-TW) 147.0 | Jan 13, 2026 |
| Mozilla Thunderbird ESR (af) | 153.0.1 | Mozilla Thunderbird ESR (af) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (ar) | 153.0.1 | Mozilla Thunderbird ESR (ar) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (ast) | 153.0.1 | Mozilla Thunderbird ESR (ast) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (be) | 153.0.1 | Mozilla Thunderbird ESR (be) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (bg) | 153.0.1 | Mozilla Thunderbird ESR (bg) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (br) | 153.0.1 | Mozilla Thunderbird ESR (br) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (ca) | 153.0.1 | Mozilla Thunderbird ESR (ca) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (cak) | 153.0.1 | Mozilla Thunderbird ESR (cak) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (cs) | 153.0.1 | Mozilla Thunderbird ESR (cs) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (cy) | 153.0.1 | Mozilla Thunderbird ESR (cy) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (da) | 153.0.1 | Mozilla Thunderbird ESR (da) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (de) | 153.0.1 | Mozilla Thunderbird ESR (de) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (dsb) | 153.0.1 | Mozilla Thunderbird ESR (dsb) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (el) | 153.0.1 | Mozilla Thunderbird ESR (el) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (en-CA) | 153.0.1 | Mozilla Thunderbird ESR (en-CA) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (en-GB) | 153.0.1 | Mozilla Thunderbird ESR (en-GB) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (en-US) | 153.0.1 | Mozilla Thunderbird ESR (en-US) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (es-AR) | 153.0.1 | Mozilla Thunderbird ESR (es-AR) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (es-ES) | 153.0.1 | Mozilla Thunderbird ESR (es-ES) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (es-MX) | 153.0.1 | Mozilla Thunderbird ESR (es-MX) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (et) | 153.0.1 | Mozilla Thunderbird ESR (et) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (eu) | 153.0.1 | Mozilla Thunderbird ESR (eu) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (fi) | 153.0.1 | Mozilla Thunderbird ESR (fi) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (fr) | 153.0.1 | Mozilla Thunderbird ESR (fr) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (fy-NL) | 153.0.1 | Mozilla Thunderbird ESR (fy-NL) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (ga-IE) | 153.0.1 | Mozilla Thunderbird ESR (ga-IE) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (gd) | 153.0.1 | Mozilla Thunderbird ESR (gd) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (gl) | 153.0.1 | Mozilla Thunderbird ESR (gl) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (he) | 153.0.1 | Mozilla Thunderbird ESR (he) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (hr) | 153.0.1 | Mozilla Thunderbird ESR (hr) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (hsb) | 153.0.1 | Mozilla Thunderbird ESR (hsb) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (hu) | 153.0.1 | Mozilla Thunderbird ESR (hu) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (hy-AM) | 153.0.1 | Mozilla Thunderbird ESR (hy-AM) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (id) | 153.0.1 | Mozilla Thunderbird ESR (id) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (is) | 153.0.1 | Mozilla Thunderbird ESR (is) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (it) | 153.0.1 | Mozilla Thunderbird ESR (it) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (ja) | 153.0.1 | Mozilla Thunderbird ESR (ja) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (ka) | 153.0.1 | Mozilla Thunderbird ESR (ka) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (kab) | 153.0.1 | Mozilla Thunderbird ESR (kab) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (kk) | 153.0.1 | Mozilla Thunderbird ESR (kk) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (ko) | 153.0.1 | Mozilla Thunderbird ESR (ko) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (lt) | 153.0.1 | Mozilla Thunderbird ESR (lt) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (lv) | 153.0.1 | Mozilla Thunderbird ESR (lv) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (ms) | 153.0.1 | Mozilla Thunderbird ESR (ms) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (nb-NO) | 153.0.1 | Mozilla Thunderbird ESR (nb-NO) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (nl) | 153.0.1 | Mozilla Thunderbird ESR (nl) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (nn-NO) | 153.0.1 | Mozilla Thunderbird ESR (nn-NO) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (pa-IN) | 153.0.1 | Mozilla Thunderbird ESR (pa-IN) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (pl) | 153.0.1 | Mozilla Thunderbird ESR (pl) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (pt-BR) | 153.0.1 | Mozilla Thunderbird ESR (pt-BR) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (pt-PT) | 153.0.1 | Mozilla Thunderbird ESR (pt-PT) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (rm) | 153.0.1 | Mozilla Thunderbird ESR (rm) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (ro) | 153.0.1 | Mozilla Thunderbird ESR (ro) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (ru) | 153.0.1 | Mozilla Thunderbird ESR (ru) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (sk) | 153.0.1 | Mozilla Thunderbird ESR (sk) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (sl) | 153.0.1 | Mozilla Thunderbird ESR (sl) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (sq) | 153.0.1 | Mozilla Thunderbird ESR (sq) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (sr) | 153.0.1 | Mozilla Thunderbird ESR (sr) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (sv-SE) | 153.0.1 | Mozilla Thunderbird ESR (sv-SE) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (th) | 153.0.1 | Mozilla Thunderbird ESR (th) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (tr) | 153.0.1 | Mozilla Thunderbird ESR (tr) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (uk) | 153.0.1 | Mozilla Thunderbird ESR (uk) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (uz) | 153.0.1 | Mozilla Thunderbird ESR (uz) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (vi) | 153.0.1 | Mozilla Thunderbird ESR (vi) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (zh-CN) | 153.0.1 | Mozilla Thunderbird ESR (zh-CN) 153.0.1 | Jul 23, 2026 |
| Mozilla Thunderbird ESR (zh-TW) | 153.0.1 | Mozilla Thunderbird ESR (zh-TW) 153.0.1 | Jul 23, 2026 |
| macOS | |||
| Mozilla Firefox | 150.0.2 | Mozilla Firefox 150.0.2 | May 6, 2026 |
| Linux | |||
| MozillaFirefox · opensuse-leap 15.6 | 140.7.0-150200.152.216.1 | SUSE-SU-2026:0260-1 | Jan 22, 2026 |
| MozillaFirefox · opensuse-leap 16.0 | 140.7.0-160000.1.1 | OPENSUSE-SU-2026:20041-1 | Jan 15, 2026 |
| MozillaFirefox · sles 15.6 | 140.7.0-150200.152.216.1 | SUSE-SU-2026:0260-1 | Jan 22, 2026 |
| MozillaFirefox · sles 15.7 | 140.7.0-150200.152.216.1 | SUSE-SU-2026:0260-1 | Jan 22, 2026 |
| MozillaFirefox · sles 16.0 | 140.7.0-160000.1.1 | SUSE-SU-2026:20086-1 | Jan 15, 2026 |
| MozillaThunderbird · opensuse-leap 15.6 | 140.7.0-150200.8.251.1 | SUSE-SU-2026:0153-1 | Jan 19, 2026 |
| MozillaThunderbird · opensuse-leap 16.0 | 140.8.1-bp160.1.1 | OPENSUSE-SU-2026:20391-1 | Mar 18, 2026 |
| MozillaThunderbird · sles 15.7 | 140.7.0-150200.8.251.1 | SUSE-SU-2026:0153-1 | Jan 19, 2026 |
| firefox · RHEL 10 | 140.7.0-1.el10_0 | RHSA-2026:2271 | Jan 13, 2026 |
| firefox · RHEL 8 | 0:140.7.0-1.el8_10 | RHSA-2026:0667 | Jan 16, 2026 |
| firefox · RHEL 9 | 0:140.7.0-1.el9_7 | RHSA-2026:0694 | Jan 16, 2026 |
| firefox · almalinux 10 | 140.7.0-1.el10_1 | ALSA-2026:2271 | Feb 9, 2026 |
| firefox · almalinux 8 | 140.7.0-1.el8_10.alma.1 | ALSA-2026:0667 | Jan 15, 2026 |
| firefox · almalinux 9 | 140.7.0-1.el9_7.alma.1 | ALSA-2026:0694 | Jan 15, 2026 |
| firefox · amzn 2023 | 140.7.0-1.amzn2023.0.1 | ALAS2023-2026-1429 | Feb 16, 2026 |
| firefox · ol 10 | 0:140.7.0-1.0.1.el10_1 | ELSA-2026-2271 | Feb 9, 2026 |
| firefox · ol 8 | 0:140.7.0-1.0.1.el8_10 | ELSA-2026-0667 | Jan 16, 2026 |
| firefox · ol 9 | 0:140.7.0-1.0.1.el9_7 | ELSA-2026-0694 | Jan 16, 2026 |
| firefox · rocky 8 | 0:140.7.0-1.el8_10 | RLSA-2026:0667 | Jan 16, 2026 |
| firefox · rocky 9 | 0:140.7.0-1.el9_7 | RLSA-2026:0694 | Jan 16, 2026 |
| firefox-debuginfo · amzn 2023 | 140.7.0-1.amzn2023.0.1 | ALAS2023-2026-1429 | Feb 16, 2026 |
| firefox-debugsource · amzn 2023 | 140.7.0-1.amzn2023.0.1 | ALAS2023-2026-1429 | Feb 16, 2026 |
| firefox-esr · Debian 12.15 (bookworm) | 140.7.0esr-1~deb12u1 | DEBIAN-CVE-2026-0891 | Jan 13, 2026 |
| firefox-esr · Debian 13.5 (trixie) | 140.7.0esr-1~deb13u1 | DEBIAN-CVE-2026-0891 | Jan 13, 2026 |
| firefox-esr · Debian 14 | 140.7.0esr-1 | DEBIAN-CVE-2026-0891 | Jan 13, 2026 |
| firefox-x11 · RHEL 9 | 0:140.7.0-1.el9_7 | RHSA-2026:0694 | Jan 16, 2026 |
| firefox-x11 · almalinux 9 | 140.7.0-1.el9_7.alma.1 | ALSA-2026:0694 | Jan 15, 2026 |
| firefox-x11 · ol 9 | 0:140.7.0-1.0.1.el9_7 | ELSA-2026-0694 | Jan 16, 2026 |
| thunderbird · Debian 12.15 (bookworm) | 1:140.7.0esr-1~deb12u1 | DEBIAN-CVE-2026-0891 | Jan 13, 2026 |
| thunderbird · Debian 13.5 (trixie) | 1:140.7.0esr-1~deb13u1 | DEBIAN-CVE-2026-0891 | Jan 13, 2026 |
| thunderbird · Debian 14 | 1:140.7.0esr-1 | DEBIAN-CVE-2026-0891 | Jan 13, 2026 |
| thunderbird · RHEL 10 | 140.7.0-1.el10_0 | RHSA-2026:2286 | Jan 13, 2026 |
| thunderbird · RHEL 8 | 0:140.7.0-1.el8_10 | RHSA-2026:2220 | Feb 9, 2026 |
| thunderbird · RHEL 9 | 0:140.7.0-1.el9_7 | RHSA-2026:0924 | Jan 21, 2026 |
| thunderbird · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | thunderbird 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
| thunderbird · almalinux 10 | 140.7.0-1.el10_1.alma.1 | ALSA-2026:2286 | Feb 9, 2026 |
| thunderbird · almalinux 8 | 140.7.0-1.el8_10.alma.1 | ALSA-2026:2220 | Feb 9, 2026 |
| thunderbird · almalinux 9 | 140.7.0-1.el9_7.alma.1 | ALSA-2026:0924 | Jan 21, 2026 |
| thunderbird · ol 10 | 0:140.7.0-1.0.1.el10_1 | ELSA-2026-2286 | Feb 9, 2026 |
| thunderbird · ol 8 | 0:140.7.0-1.0.1.el8_10 | ELSA-2026-2220 | Feb 9, 2026 |
| thunderbird · ol 9 | 0:140.7.0-1.0.1.el9_7 | ELSA-2026-0924 | Jan 21, 2026 |
| thunderbird · rocky 8 | 0:140.7.0-1.el8_10 | RLSA-2026:2220 | Feb 9, 2026 |
| thunderbird · rocky 9 | 0:140.7.0-1.el9_7 | RLSA-2026:0924 | Jan 22, 2026 |
| thunderbird-gnome-support · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | thunderbird-gnome-support 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
| thunderbird-mozsymbols · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | thunderbird-mozsymbols 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
| xul-ext-calendar-timezones · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | xul-ext-calendar-timezones 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
| xul-ext-gdata-provider · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | xul-ext-gdata-provider 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
| xul-ext-lightning · Ubuntu 22.04.1 LTS (jammy) | 1:140.7.1+build1-0ubuntu0.22.04.1 | xul-ext-lightning 1:140.7.1+build1-0ubuntu0.22.04.1 | Jan 28, 2026 |
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