CVE-2025-14861
Memory safety bugs fixed in Firefox 146.0.1
CVE-2025-14861 is fixed in 305 products on 2 platforms, first by Mozilla Firefox (ach) 146.0.1, released December 18, 2025. It is not reported as exploited. Patch Radar priority: High.
HighFixed on 2 platforms
CVSS
8.8
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0025
17th percentile
Memory safety bugs present in Firefox 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 146.0.1.
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) | 146.0.1 | Mozilla Firefox (ach) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (af) | 146.0.1 | Mozilla Firefox (af) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (an) | 146.0.1 | Mozilla Firefox (an) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ar) | 146.0.1 | Mozilla Firefox (ar) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ast) | 146.0.1 | Mozilla Firefox (ast) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (az) | 146.0.1 | Mozilla Firefox (az) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (be) | 146.0.1 | Mozilla Firefox (be) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (bg) | 146.0.1 | Mozilla Firefox (bg) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (bn) | 146.0.1 | Mozilla Firefox (bn) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (br) | 146.0.1 | Mozilla Firefox (br) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (bs) | 146.0.1 | Mozilla Firefox (bs) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ca) | 146.0.1 | Mozilla Firefox (ca) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ca-valencia) | 146.0.1 | Mozilla Firefox (ca-valencia) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (cak) | 146.0.1 | Mozilla Firefox (cak) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (cs) | 146.0.1 | Mozilla Firefox (cs) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (cy) | 146.0.1 | Mozilla Firefox (cy) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (da) | 146.0.1 | Mozilla Firefox (da) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (de) | 146.0.1 | Mozilla Firefox (de) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (dsb) | 146.0.1 | Mozilla Firefox (dsb) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (el) | 146.0.1 | Mozilla Firefox (el) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (en-CA) | 146.0.1 | Mozilla Firefox (en-CA) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (en-GB) | 146.0.1 | Mozilla Firefox (en-GB) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (en-US) | 146.0.1 | Mozilla Firefox (en-US) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (eo) | 146.0.1 | Mozilla Firefox (eo) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (es-AR) | 146.0.1 | Mozilla Firefox (es-AR) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (es-CL) | 146.0.1 | Mozilla Firefox (es-CL) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (es-ES) | 146.0.1 | Mozilla Firefox (es-ES) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (es-MX) | 146.0.1 | Mozilla Firefox (es-MX) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (et) | 146.0.1 | Mozilla Firefox (et) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (eu) | 146.0.1 | Mozilla Firefox (eu) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (fa) | 146.0.1 | Mozilla Firefox (fa) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ff) | 146.0.1 | Mozilla Firefox (ff) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (fi) | 146.0.1 | Mozilla Firefox (fi) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (fr) | 146.0.1 | Mozilla Firefox (fr) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (fur) | 146.0.1 | Mozilla Firefox (fur) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (fy-NL) | 146.0.1 | Mozilla Firefox (fy-NL) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ga-IE) | 146.0.1 | Mozilla Firefox (ga-IE) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (gd) | 146.0.1 | Mozilla Firefox (gd) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (gl) | 146.0.1 | Mozilla Firefox (gl) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (gn) | 146.0.1 | Mozilla Firefox (gn) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (gu-IN) | 146.0.1 | Mozilla Firefox (gu-IN) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (he) | 146.0.1 | Mozilla Firefox (he) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (hi-IN) | 146.0.1 | Mozilla Firefox (hi-IN) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (hr) | 146.0.1 | Mozilla Firefox (hr) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (hsb) | 146.0.1 | Mozilla Firefox (hsb) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (hu) | 146.0.1 | Mozilla Firefox (hu) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (hy-AM) | 146.0.1 | Mozilla Firefox (hy-AM) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ia) | 146.0.1 | Mozilla Firefox (ia) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (id) | 146.0.1 | Mozilla Firefox (id) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (is) | 146.0.1 | Mozilla Firefox (is) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (it) | 146.0.1 | Mozilla Firefox (it) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ja) | 146.0.1 | Mozilla Firefox (ja) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ka) | 146.0.1 | Mozilla Firefox (ka) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (kab) | 146.0.1 | Mozilla Firefox (kab) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (kk) | 146.0.1 | Mozilla Firefox (kk) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (km) | 146.0.1 | Mozilla Firefox (km) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (kn) | 146.0.1 | Mozilla Firefox (kn) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ko) | 146.0.1 | Mozilla Firefox (ko) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (lij) | 146.0.1 | Mozilla Firefox (lij) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (lt) | 146.0.1 | Mozilla Firefox (lt) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (lv) | 146.0.1 | Mozilla Firefox (lv) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (mk) | 146.0.1 | Mozilla Firefox (mk) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (mr) | 146.0.1 | Mozilla Firefox (mr) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ms) | 146.0.1 | Mozilla Firefox (ms) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (my) | 146.0.1 | Mozilla Firefox (my) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (nb-NO) | 146.0.1 | Mozilla Firefox (nb-NO) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ne-NP) | 146.0.1 | Mozilla Firefox (ne-NP) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (nl) | 146.0.1 | Mozilla Firefox (nl) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (nn-NO) | 146.0.1 | Mozilla Firefox (nn-NO) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (oc) | 146.0.1 | Mozilla Firefox (oc) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (pa-IN) | 146.0.1 | Mozilla Firefox (pa-IN) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (pl) | 146.0.1 | Mozilla Firefox (pl) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (pt-BR) | 146.0.1 | Mozilla Firefox (pt-BR) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (pt-PT) | 146.0.1 | Mozilla Firefox (pt-PT) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (rm) | 146.0.1 | Mozilla Firefox (rm) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ro) | 146.0.1 | Mozilla Firefox (ro) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ru) | 146.0.1 | Mozilla Firefox (ru) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (sc) | 146.0.1 | Mozilla Firefox (sc) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (sco) | 146.0.1 | Mozilla Firefox (sco) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (si) | 146.0.1 | Mozilla Firefox (si) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (sk) | 146.0.1 | Mozilla Firefox (sk) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (sl) | 146.0.1 | Mozilla Firefox (sl) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (son) | 146.0.1 | Mozilla Firefox (son) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (sq) | 146.0.1 | Mozilla Firefox (sq) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (sr) | 146.0.1 | Mozilla Firefox (sr) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (sv-SE) | 146.0.1 | Mozilla Firefox (sv-SE) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (szl) | 146.0.1 | Mozilla Firefox (szl) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ta) | 146.0.1 | Mozilla Firefox (ta) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (te) | 146.0.1 | Mozilla Firefox (te) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (tg) | 146.0.1 | Mozilla Firefox (tg) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (th) | 146.0.1 | Mozilla Firefox (th) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (tl) | 146.0.1 | Mozilla Firefox (tl) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (tr) | 146.0.1 | Mozilla Firefox (tr) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (trs) | 146.0.1 | Mozilla Firefox (trs) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (uk) | 146.0.1 | Mozilla Firefox (uk) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (ur) | 146.0.1 | Mozilla Firefox (ur) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (uz) | 146.0.1 | Mozilla Firefox (uz) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (vi) | 146.0.1 | Mozilla Firefox (vi) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (xh) | 146.0.1 | Mozilla Firefox (xh) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (zh-CN) | 146.0.1 | Mozilla Firefox (zh-CN) 146.0.1 | Dec 18, 2025 |
| Mozilla Firefox (zh-TW) | 146.0.1 | Mozilla Firefox (zh-TW) 146.0.1 | Dec 18, 2025 |
| 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 |
| macOS | |||
| Mozilla Firefox | 150.0.2 | Mozilla Firefox 150.0.2 | May 6, 2026 |
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