CVE-2026-8389
JIT miscompilation in the JavaScript Engine: JIT component
CVE-2026-8389 is fixed in 305 products on 2 platforms, first by Mozilla Firefox (ach) 150.0.3, released May 12, 2026. 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
0.0042
36th percentile
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 150.0.3.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Firefox Developer Edition (ach) | 151.0 | Firefox Developer Edition (ach) 151.0 | May 13, 2026 |
| Firefox Developer Edition (af) | 151.0 | Firefox Developer Edition (af) 151.0 | May 13, 2026 |
| Firefox Developer Edition (an) | 151.0 | Firefox Developer Edition (an) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ar) | 151.0 | Firefox Developer Edition (ar) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ast) | 151.0 | Firefox Developer Edition (ast) 151.0 | May 13, 2026 |
| Firefox Developer Edition (az) | 151.0 | Firefox Developer Edition (az) 151.0 | May 13, 2026 |
| Firefox Developer Edition (be) | 151.0 | Firefox Developer Edition (be) 151.0 | May 13, 2026 |
| Firefox Developer Edition (bg) | 151.0 | Firefox Developer Edition (bg) 151.0 | May 13, 2026 |
| Firefox Developer Edition (bn) | 151.0 | Firefox Developer Edition (bn) 151.0 | May 13, 2026 |
| Firefox Developer Edition (br) | 151.0 | Firefox Developer Edition (br) 151.0 | May 13, 2026 |
| Firefox Developer Edition (bs) | 151.0 | Firefox Developer Edition (bs) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ca) | 151.0 | Firefox Developer Edition (ca) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ca-valencia) | 151.0 | Firefox Developer Edition (ca-valencia) 151.0 | May 13, 2026 |
| Firefox Developer Edition (cak) | 151.0 | Firefox Developer Edition (cak) 151.0 | May 13, 2026 |
| Firefox Developer Edition (cs) | 151.0 | Firefox Developer Edition (cs) 151.0 | May 13, 2026 |
| Firefox Developer Edition (cy) | 151.0 | Firefox Developer Edition (cy) 151.0 | May 13, 2026 |
| Firefox Developer Edition (da) | 151.0 | Firefox Developer Edition (da) 151.0 | May 13, 2026 |
| Firefox Developer Edition (de) | 151.0 | Firefox Developer Edition (de) 151.0 | May 13, 2026 |
| Firefox Developer Edition (dsb) | 151.0 | Firefox Developer Edition (dsb) 151.0 | May 13, 2026 |
| Firefox Developer Edition (el) | 151.0 | Firefox Developer Edition (el) 151.0 | May 13, 2026 |
| Firefox Developer Edition (en-CA) | 151.0 | Firefox Developer Edition (en-CA) 151.0 | May 13, 2026 |
| Firefox Developer Edition (en-GB) | 151.0 | Firefox Developer Edition (en-GB) 151.0 | May 13, 2026 |
| Firefox Developer Edition (en-US) | 151.0 | Firefox Developer Edition (en-US) 151.0 | May 13, 2026 |
| Firefox Developer Edition (eo) | 151.0 | Firefox Developer Edition (eo) 151.0 | May 13, 2026 |
| Firefox Developer Edition (es-AR) | 151.0 | Firefox Developer Edition (es-AR) 151.0 | May 13, 2026 |
| Firefox Developer Edition (es-CL) | 151.0 | Firefox Developer Edition (es-CL) 151.0 | May 13, 2026 |
| Firefox Developer Edition (es-ES) | 151.0 | Firefox Developer Edition (es-ES) 151.0 | May 13, 2026 |
| Firefox Developer Edition (es-MX) | 151.0 | Firefox Developer Edition (es-MX) 151.0 | May 13, 2026 |
| Firefox Developer Edition (et) | 151.0 | Firefox Developer Edition (et) 151.0 | May 13, 2026 |
| Firefox Developer Edition (eu) | 151.0 | Firefox Developer Edition (eu) 151.0 | May 13, 2026 |
| Firefox Developer Edition (fa) | 151.0 | Firefox Developer Edition (fa) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ff) | 151.0 | Firefox Developer Edition (ff) 151.0 | May 13, 2026 |
| Firefox Developer Edition (fi) | 151.0 | Firefox Developer Edition (fi) 151.0 | May 13, 2026 |
| Firefox Developer Edition (fr) | 151.0 | Firefox Developer Edition (fr) 151.0 | May 13, 2026 |
| Firefox Developer Edition (fur) | 151.0 | Firefox Developer Edition (fur) 151.0 | May 13, 2026 |
| Firefox Developer Edition (fy-NL) | 151.0 | Firefox Developer Edition (fy-NL) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ga-IE) | 151.0 | Firefox Developer Edition (ga-IE) 151.0 | May 13, 2026 |
| Firefox Developer Edition (gd) | 151.0 | Firefox Developer Edition (gd) 151.0 | May 13, 2026 |
| Firefox Developer Edition (gl) | 151.0 | Firefox Developer Edition (gl) 151.0 | May 13, 2026 |
| Firefox Developer Edition (gn) | 151.0 | Firefox Developer Edition (gn) 151.0 | May 13, 2026 |
| Firefox Developer Edition (gu-IN) | 151.0 | Firefox Developer Edition (gu-IN) 151.0 | May 13, 2026 |
| Firefox Developer Edition (he) | 151.0 | Firefox Developer Edition (he) 151.0 | May 13, 2026 |
| Firefox Developer Edition (hi-IN) | 151.0 | Firefox Developer Edition (hi-IN) 151.0 | May 13, 2026 |
| Firefox Developer Edition (hr) | 151.0 | Firefox Developer Edition (hr) 151.0 | May 13, 2026 |
| Firefox Developer Edition (hsb) | 151.0 | Firefox Developer Edition (hsb) 151.0 | May 13, 2026 |
| Firefox Developer Edition (hu) | 151.0 | Firefox Developer Edition (hu) 151.0 | May 13, 2026 |
| Firefox Developer Edition (hy-AM) | 151.0 | Firefox Developer Edition (hy-AM) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ia) | 151.0 | Firefox Developer Edition (ia) 151.0 | May 13, 2026 |
| Firefox Developer Edition (id) | 151.0 | Firefox Developer Edition (id) 151.0 | May 13, 2026 |
| Firefox Developer Edition (is) | 151.0 | Firefox Developer Edition (is) 151.0 | May 13, 2026 |
| Firefox Developer Edition (it) | 151.0 | Firefox Developer Edition (it) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ja) | 151.0 | Firefox Developer Edition (ja) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ka) | 151.0 | Firefox Developer Edition (ka) 151.0 | May 13, 2026 |
| Firefox Developer Edition (kab) | 151.0 | Firefox Developer Edition (kab) 151.0 | May 13, 2026 |
| Firefox Developer Edition (kk) | 151.0 | Firefox Developer Edition (kk) 151.0 | May 13, 2026 |
| Firefox Developer Edition (km) | 151.0 | Firefox Developer Edition (km) 151.0 | May 13, 2026 |
| Firefox Developer Edition (kn) | 151.0 | Firefox Developer Edition (kn) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ko) | 151.0 | Firefox Developer Edition (ko) 151.0 | May 13, 2026 |
| Firefox Developer Edition (lij) | 151.0 | Firefox Developer Edition (lij) 151.0 | May 13, 2026 |
| Firefox Developer Edition (lt) | 151.0 | Firefox Developer Edition (lt) 151.0 | May 13, 2026 |
| Firefox Developer Edition (lv) | 151.0 | Firefox Developer Edition (lv) 151.0 | May 13, 2026 |
| Firefox Developer Edition (mk) | 151.0 | Firefox Developer Edition (mk) 151.0 | May 13, 2026 |
| Firefox Developer Edition (mr) | 151.0 | Firefox Developer Edition (mr) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ms) | 151.0 | Firefox Developer Edition (ms) 151.0 | May 13, 2026 |
| Firefox Developer Edition (my) | 151.0 | Firefox Developer Edition (my) 151.0 | May 13, 2026 |
| Firefox Developer Edition (nb-NO) | 151.0 | Firefox Developer Edition (nb-NO) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ne-NP) | 151.0 | Firefox Developer Edition (ne-NP) 151.0 | May 13, 2026 |
| Firefox Developer Edition (nl) | 151.0 | Firefox Developer Edition (nl) 151.0 | May 13, 2026 |
| Firefox Developer Edition (nn-NO) | 151.0 | Firefox Developer Edition (nn-NO) 151.0 | May 13, 2026 |
| Firefox Developer Edition (oc) | 151.0 | Firefox Developer Edition (oc) 151.0 | May 13, 2026 |
| Firefox Developer Edition (pa-IN) | 151.0 | Firefox Developer Edition (pa-IN) 151.0 | May 13, 2026 |
| Firefox Developer Edition (pl) | 151.0 | Firefox Developer Edition (pl) 151.0 | May 13, 2026 |
| Firefox Developer Edition (pt-BR) | 151.0 | Firefox Developer Edition (pt-BR) 151.0 | May 13, 2026 |
| Firefox Developer Edition (pt-PT) | 151.0 | Firefox Developer Edition (pt-PT) 151.0 | May 13, 2026 |
| Firefox Developer Edition (rm) | 151.0 | Firefox Developer Edition (rm) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ro) | 151.0 | Firefox Developer Edition (ro) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ru) | 151.0 | Firefox Developer Edition (ru) 151.0 | May 13, 2026 |
| Firefox Developer Edition (sc) | 151.0 | Firefox Developer Edition (sc) 151.0 | May 13, 2026 |
| Firefox Developer Edition (sco) | 151.0 | Firefox Developer Edition (sco) 151.0 | May 13, 2026 |
| Firefox Developer Edition (si) | 151.0 | Firefox Developer Edition (si) 151.0 | May 13, 2026 |
| Firefox Developer Edition (sk) | 151.0 | Firefox Developer Edition (sk) 151.0 | May 13, 2026 |
| Firefox Developer Edition (sl) | 151.0 | Firefox Developer Edition (sl) 151.0 | May 13, 2026 |
| Firefox Developer Edition (son) | 151.0 | Firefox Developer Edition (son) 151.0 | May 13, 2026 |
| Firefox Developer Edition (sq) | 151.0 | Firefox Developer Edition (sq) 151.0 | May 13, 2026 |
| Firefox Developer Edition (sr) | 151.0 | Firefox Developer Edition (sr) 151.0 | May 13, 2026 |
| Firefox Developer Edition (sv-SE) | 151.0 | Firefox Developer Edition (sv-SE) 151.0 | May 13, 2026 |
| Firefox Developer Edition (szl) | 151.0 | Firefox Developer Edition (szl) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ta) | 151.0 | Firefox Developer Edition (ta) 151.0 | May 13, 2026 |
| Firefox Developer Edition (te) | 151.0 | Firefox Developer Edition (te) 151.0 | May 13, 2026 |
| Firefox Developer Edition (tg) | 151.0 | Firefox Developer Edition (tg) 151.0 | May 13, 2026 |
| Firefox Developer Edition (th) | 151.0 | Firefox Developer Edition (th) 151.0 | May 13, 2026 |
| Firefox Developer Edition (tl) | 151.0 | Firefox Developer Edition (tl) 151.0 | May 13, 2026 |
| Firefox Developer Edition (tr) | 151.0 | Firefox Developer Edition (tr) 151.0 | May 13, 2026 |
| Firefox Developer Edition (trs) | 151.0 | Firefox Developer Edition (trs) 151.0 | May 13, 2026 |
| Firefox Developer Edition (uk) | 151.0 | Firefox Developer Edition (uk) 151.0 | May 13, 2026 |
| Firefox Developer Edition (ur) | 151.0 | Firefox Developer Edition (ur) 151.0 | May 13, 2026 |
| Firefox Developer Edition (uz) | 151.0 | Firefox Developer Edition (uz) 151.0 | May 13, 2026 |
| Firefox Developer Edition (vi) | 151.0 | Firefox Developer Edition (vi) 151.0 | May 13, 2026 |
| Firefox Developer Edition (xh) | 151.0 | Firefox Developer Edition (xh) 151.0 | May 13, 2026 |
| Firefox Developer Edition (zh-CN) | 151.0 | Firefox Developer Edition (zh-CN) 151.0 | May 13, 2026 |
| Firefox Developer Edition (zh-TW) | 151.0 | Firefox Developer Edition (zh-TW) 151.0 | May 13, 2026 |
| Mozilla Firefox (ach) | 150.0.3 | Mozilla Firefox (ach) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (af) | 150.0.3 | Mozilla Firefox (af) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (an) | 150.0.3 | Mozilla Firefox (an) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ar) | 150.0.3 | Mozilla Firefox (ar) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ast) | 150.0.3 | Mozilla Firefox (ast) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (az) | 150.0.3 | Mozilla Firefox (az) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (be) | 150.0.3 | Mozilla Firefox (be) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (bg) | 150.0.3 | Mozilla Firefox (bg) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (bn) | 150.0.3 | Mozilla Firefox (bn) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (br) | 150.0.3 | Mozilla Firefox (br) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (bs) | 150.0.3 | Mozilla Firefox (bs) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ca) | 150.0.3 | Mozilla Firefox (ca) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ca-valencia) | 150.0.3 | Mozilla Firefox (ca-valencia) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (cak) | 150.0.3 | Mozilla Firefox (cak) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (cs) | 150.0.3 | Mozilla Firefox (cs) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (cy) | 150.0.3 | Mozilla Firefox (cy) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (da) | 150.0.3 | Mozilla Firefox (da) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (de) | 150.0.3 | Mozilla Firefox (de) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (dsb) | 150.0.3 | Mozilla Firefox (dsb) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (el) | 150.0.3 | Mozilla Firefox (el) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (en-CA) | 150.0.3 | Mozilla Firefox (en-CA) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (en-GB) | 150.0.3 | Mozilla Firefox (en-GB) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (en-US) | 150.0.3 | Mozilla Firefox (en-US) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (eo) | 150.0.3 | Mozilla Firefox (eo) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (es-AR) | 150.0.3 | Mozilla Firefox (es-AR) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (es-CL) | 150.0.3 | Mozilla Firefox (es-CL) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (es-ES) | 150.0.3 | Mozilla Firefox (es-ES) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (es-MX) | 150.0.3 | Mozilla Firefox (es-MX) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (et) | 150.0.3 | Mozilla Firefox (et) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (eu) | 150.0.3 | Mozilla Firefox (eu) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (fa) | 150.0.3 | Mozilla Firefox (fa) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ff) | 150.0.3 | Mozilla Firefox (ff) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (fi) | 150.0.3 | Mozilla Firefox (fi) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (fr) | 150.0.3 | Mozilla Firefox (fr) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (fur) | 150.0.3 | Mozilla Firefox (fur) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (fy-NL) | 150.0.3 | Mozilla Firefox (fy-NL) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ga-IE) | 150.0.3 | Mozilla Firefox (ga-IE) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (gd) | 150.0.3 | Mozilla Firefox (gd) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (gl) | 150.0.3 | Mozilla Firefox (gl) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (gn) | 150.0.3 | Mozilla Firefox (gn) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (gu-IN) | 150.0.3 | Mozilla Firefox (gu-IN) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (he) | 150.0.3 | Mozilla Firefox (he) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (hi-IN) | 150.0.3 | Mozilla Firefox (hi-IN) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (hr) | 150.0.3 | Mozilla Firefox (hr) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (hsb) | 150.0.3 | Mozilla Firefox (hsb) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (hu) | 150.0.3 | Mozilla Firefox (hu) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (hy-AM) | 150.0.3 | Mozilla Firefox (hy-AM) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ia) | 150.0.3 | Mozilla Firefox (ia) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (id) | 150.0.3 | Mozilla Firefox (id) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (is) | 150.0.3 | Mozilla Firefox (is) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (it) | 150.0.3 | Mozilla Firefox (it) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ja) | 150.0.3 | Mozilla Firefox (ja) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ka) | 150.0.3 | Mozilla Firefox (ka) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (kab) | 150.0.3 | Mozilla Firefox (kab) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (kk) | 150.0.3 | Mozilla Firefox (kk) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (km) | 150.0.3 | Mozilla Firefox (km) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (kn) | 150.0.3 | Mozilla Firefox (kn) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ko) | 150.0.3 | Mozilla Firefox (ko) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (lij) | 150.0.3 | Mozilla Firefox (lij) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (lt) | 150.0.3 | Mozilla Firefox (lt) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (lv) | 150.0.3 | Mozilla Firefox (lv) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (mk) | 150.0.3 | Mozilla Firefox (mk) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (mr) | 150.0.3 | Mozilla Firefox (mr) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ms) | 150.0.3 | Mozilla Firefox (ms) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (my) | 150.0.3 | Mozilla Firefox (my) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (nb-NO) | 150.0.3 | Mozilla Firefox (nb-NO) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ne-NP) | 150.0.3 | Mozilla Firefox (ne-NP) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (nl) | 150.0.3 | Mozilla Firefox (nl) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (nn-NO) | 150.0.3 | Mozilla Firefox (nn-NO) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (oc) | 150.0.3 | Mozilla Firefox (oc) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (pa-IN) | 150.0.3 | Mozilla Firefox (pa-IN) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (pl) | 150.0.3 | Mozilla Firefox (pl) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (pt-BR) | 150.0.3 | Mozilla Firefox (pt-BR) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (pt-PT) | 150.0.3 | Mozilla Firefox (pt-PT) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (rm) | 150.0.3 | Mozilla Firefox (rm) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ro) | 150.0.3 | Mozilla Firefox (ro) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ru) | 150.0.3 | Mozilla Firefox (ru) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (sc) | 150.0.3 | Mozilla Firefox (sc) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (sco) | 150.0.3 | Mozilla Firefox (sco) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (si) | 150.0.3 | Mozilla Firefox (si) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (sk) | 150.0.3 | Mozilla Firefox (sk) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (sl) | 150.0.3 | Mozilla Firefox (sl) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (son) | 150.0.3 | Mozilla Firefox (son) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (sq) | 150.0.3 | Mozilla Firefox (sq) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (sr) | 150.0.3 | Mozilla Firefox (sr) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (sv-SE) | 150.0.3 | Mozilla Firefox (sv-SE) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (szl) | 150.0.3 | Mozilla Firefox (szl) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ta) | 150.0.3 | Mozilla Firefox (ta) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (te) | 150.0.3 | Mozilla Firefox (te) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (tg) | 150.0.3 | Mozilla Firefox (tg) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (th) | 150.0.3 | Mozilla Firefox (th) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (tl) | 150.0.3 | Mozilla Firefox (tl) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (tr) | 150.0.3 | Mozilla Firefox (tr) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (trs) | 150.0.3 | Mozilla Firefox (trs) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (uk) | 150.0.3 | Mozilla Firefox (uk) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (ur) | 150.0.3 | Mozilla Firefox (ur) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (uz) | 150.0.3 | Mozilla Firefox (uz) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (vi) | 150.0.3 | Mozilla Firefox (vi) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (xh) | 150.0.3 | Mozilla Firefox (xh) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (zh-CN) | 150.0.3 | Mozilla Firefox (zh-CN) 150.0.3 | May 12, 2026 |
| Mozilla Firefox (zh-TW) | 150.0.3 | Mozilla Firefox (zh-TW) 150.0.3 | May 12, 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 |
| macOS | |||
| Mozilla Firefox | 151.0.2 | Mozilla Firefox 151.0.2 | May 25, 2026 |
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