Mozilla Firefox: 153.4.0 → 155.0.0
Mozilla · upgrade impact · Official site ↗
Fixed by upgrading to 155.0.0 iVulnerabilities that affect 153.4.0 but no longer affect 155.0.0 — the security gain from this upgrade, by exploited status then exploitation probability.
Exploited first, then by exploitation probability (EPSS).
CVE-2026-74940 CRITICAL EPSS 0% ✓ cleared in 155.0.0 CVE-2026-75874 CRITICAL EPSS 0% ✓ cleared in 155.0.0 CVE-2026-74979 CRITICAL EPSS 0% ✓ cleared in 155.0.0 CVE-2026-74989 CRITICAL EPSS 0% ✓ cleared in 155.0.0 CVE-2026-74965 HIGH EPSS 0% ✓ cleared in 155.0.0 CVE-2026-84128 HIGH EPSS 0% ✓ cleared in 155.0.0 CVE-2026-74947 HIGH EPSS 0% ✓ cleared in 155.0.0 CVE-2026-74950 HIGH EPSS 0% ✓ cleared in 155.0.0 CVE-2026-74955 HIGH EPSS 0% ✓ cleared in 155.0.0 CVE-2026-74952 HIGH EPSS 0% ✓ cleared in 155.0.0 CVE-2026-84126 MEDIUM EPSS 0% ✓ cleared in 155.0.0 CVE-2026-84142 CRITICAL EPSS 0% ✓ cleared in 155.0.0 CVE-2026-84138 MEDIUM EPSS 0% ✓ cleared in 155.0.0 CVE-2026-74968 MEDIUM EPSS 0% ✓ cleared in 155.0.0 CVE-2026-74938 CRITICAL EPSS — ✓ cleared in 155.0.0 CVE-2026-74956 CRITICAL EPSS — ✓ cleared in 155.0.0 CVE-2026-74937 HIGH EPSS — ✓ cleared in 155.0.0 CVE-2026-74954 HIGH EPSS — ✓ cleared in 155.0.0 CVE-2026-74958 HIGH EPSS — ✓ cleared in 155.0.0 CVE-2026-74963 MEDIUM EPSS — ✓ cleared in 155.0.0