MOZILLAMOZILLA-PRODUCTS-MFSA2025-55
MFSA 2025-55 Security Vulnerabilities fixed in Thunderbird 128.12
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →VERIFIED PUBLISHER INTELLIGENCE
Release notes and known issues
Source-attributed product updates, affected versions, fixes and operational context. Update publication dates are kept separate from lifecycle boundaries.
MOZILLAMOZILLA-PRODUCTS-MFSA2025-56
MFSA 2025-56 Security Vulnerabilities fixed in Firefox 141
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-57
MFSA 2025-57 Security Vulnerabilities fixed in Firefox ESR 115.26
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-58
MFSA 2025-58 Security Vulnerabilities fixed in Firefox ESR 128.13
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-59
MFSA 2025-59 Security Vulnerabilities fixed in Firefox ESR 140.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-60
MFSA 2025-60 Security Vulnerabilities fixed in Firefox for iOS 141
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-61
MFSA 2025-61 Security Vulnerabilities fixed in Thunderbird 141
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-62
MFSA 2025-62 Security Vulnerabilities fixed in Thunderbird 128.13
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-63
MFSA 2025-63 Security Vulnerabilities fixed in Thunderbird 140.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-64
MFSA 2025-64 Security Vulnerabilities fixed in Firefox 142
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-65
MFSA 2025-65 Security Vulnerabilities fixed in Firefox ESR 115.27
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-66
MFSA 2025-66 Security Vulnerabilities fixed in Firefox ESR 128.14
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-67
MFSA 2025-67 Security Vulnerabilities fixed in Firefox ESR 140.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-68
MFSA 2025-68 Security Vulnerabilities fixed in Firefox for iOS 142
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-69
MFSA 2025-69 Security Vulnerabilities fixed in Focus for iOS 142
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-70
MFSA 2025-70 Security Vulnerabilities fixed in Thunderbird 142
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-71
MFSA 2025-71 Security Vulnerabilities fixed in Thunderbird 128.14
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-72
MFSA 2025-72 Security Vulnerabilities fixed in Thunderbird 140.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-73
MFSA 2025-73 Security Vulnerabilities fixed in Firefox 143
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-74
MFSA 2025-74 Security Vulnerabilities fixed in Firefox ESR 115.28
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-75
MFSA 2025-75 Security Vulnerabilities fixed in Firefox ESR 140.3
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-76
MFSA 2025-76 Security Vulnerabilities fixed in Focus for iOS 143.0
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-77
MFSA 2025-77 Security Vulnerabilities fixed in Thunderbird 143
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-78
MFSA 2025-78 Security Vulnerabilities fixed in Thunderbird 140.3
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-79
MFSA 2025-79 Security Vulnerabilities fixed in Firefox for iOS 143.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-80
MFSA 2025-80 Security Vulnerabilities fixed in Firefox 143.0.3
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-81
MFSA 2025-81 Security Vulnerabilities fixed in Firefox 144
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-82
MFSA 2025-82 Security Vulnerabilities fixed in Firefox ESR 115.29
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-83
MFSA 2025-83 Security Vulnerabilities fixed in Firefox ESR 140.4
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-84
MFSA 2025-84 Security Vulnerabilities fixed in Thunderbird 144
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-85
MFSA 2025-85 Security Vulnerabilities fixed in Thunderbird 140.4
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-86
MFSA 2025-86 Security Vulnerabilities fixed in Firefox 144.0.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-87
MFSA 2025-87 Security Vulnerabilities fixed in Firefox 145
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-88
MFSA 2025-88 Security Vulnerabilities fixed in Firefox ESR 140.5
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-89
MFSA 2025-89 Security Vulnerabilities fixed in Firefox ESR 115.30
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-90
MFSA 2025-90 Security Vulnerabilities fixed in Thunderbird 145
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-91
MFSA 2025-91 Security Vulnerabilities fixed in Thunderbird 140.5
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-92
MFSA 2025-92 Security Vulnerabilities fixed in Firefox 146
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-93
MFSA 2025-93 Security Vulnerabilities fixed in Firefox ESR 115.31
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-94
MFSA 2025-94 Security Vulnerabilities fixed in Firefox ESR 140.6
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-95
MFSA 2025-95 Security Vulnerabilities fixed in Thunderbird 146
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-96
MFSA 2025-96 Security Vulnerabilities fixed in Thunderbird 140.6
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-97
MFSA 2025-97 Security Vulnerabilities fixed in Firefox for iOS 144.0
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2025-98
MFSA 2025-98 Security Vulnerabilities fixed in Firefox 146.0.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-01
MFSA 2026-01 Security Vulnerabilities fixed in Firefox 147
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-02
MFSA 2026-02 Security Vulnerabilities fixed in Firefox ESR 115.32
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-03
MFSA 2026-03 Security Vulnerabilities fixed in Firefox ESR 140.7
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-04
MFSA 2026-04 Security Vulnerabilities fixed in Thunderbird 147
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-05
MFSA 2026-05 Security Vulnerabilities fixed in Thunderbird 140.7
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-06
MFSA 2026-06 Security Vulnerabilities fixed in Firefox 147.0.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-07
MFSA 2026-07 Security Vulnerabilities fixed in Thunderbird 147.0.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-08
MFSA 2026-08 Security Vulnerabilities fixed in Thunderbird 140.7.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-09
MFSA 2026-09 Security Vulnerabilities fixed in Firefox for iOS 147.2.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-10
MFSA 2026-10 Security Vulnerabilities fixed in Firefox 147.0.4, ESR 140.7.1, and ESR 115.32.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-11
MFSA 2026-11 Security Vulnerabilities fixed in Thunderbird 147.0.2 and 140.7.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-12
MFSA 2026-12 Security Vulnerabilities fixed in Firefox for iOS 147.4
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-13
MFSA 2026-13 Security Vulnerabilities fixed in Firefox 148
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-14
MFSA 2026-14 Security Vulnerabilities fixed in Firefox ESR 115.33
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-15
MFSA 2026-15 Security Vulnerabilities fixed in Firefox ESR 140.8
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-16
MFSA 2026-16 Security Vulnerabilities fixed in Thunderbird 148
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-17
MFSA 2026-17 Security Vulnerabilities fixed in Thunderbird 140.8
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-18
MFSA 2026-18 Security Vulnerabilities fixed in Focus for iOS 148.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-19
MFSA 2026-19 Security Vulnerabilities fixed in Firefox 148.0.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-20
MFSA 2026-20 Security Vulnerabilities fixed in Firefox 149
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-21
MFSA 2026-21 Security Vulnerabilities fixed in Firefox ESR 115.34
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-22
MFSA 2026-22 Security Vulnerabilities fixed in Firefox ESR 140.9
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-23
MFSA 2026-23 Security Vulnerabilities fixed in Thunderbird 149
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-24
MFSA 2026-24 Security Vulnerabilities fixed in Thunderbird 140.9
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-25
MFSA 2026-25 Security Vulnerabilities fixed in Firefox 149.0.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-26
MFSA 2026-26 Security Vulnerabilities fixed in Firefox ESR 115.34.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-27
MFSA 2026-27 Security Vulnerabilities fixed in Firefox ESR 140.9.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-28
MFSA 2026-28 Security Vulnerabilities fixed in Thunderbird 149.0.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-29
MFSA 2026-29 Security Vulnerabilities fixed in Thunderbird 140.9.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-30
MFSA 2026-30 Security Vulnerabilities fixed in Firefox 150
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-31
MFSA 2026-31 Security Vulnerabilities fixed in Firefox ESR 115.35
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-32
MFSA 2026-32 Security Vulnerabilities fixed in Firefox ESR 140.10
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-33
MFSA 2026-33 Security Vulnerabilities fixed in Thunderbird 150
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-34
MFSA 2026-34 Security Vulnerabilities fixed in Thunderbird 140.10
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-35
MFSA 2026-35 Security Vulnerabilities fixed in Firefox 150.0.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-36
MFSA 2026-36 Security Vulnerabilities fixed in Firefox ESR 140.10.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-37
MFSA 2026-37 Security Vulnerabilities fixed in Firefox ESR 115.35.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-38
MFSA 2026-38 Security Vulnerabilities fixed in Thunderbird 150.0.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-39
MFSA 2026-39 Security Vulnerabilities fixed in Thunderbird 140.10.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-40
MFSA 2026-40 Security Vulnerabilities fixed in Firefox 150.0.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-41
MFSA 2026-41 Security Vulnerabilities fixed in Firefox ESR 140.10.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-42
MFSA 2026-42 Security Vulnerabilities fixed in Firefox ESR 115.35.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-43
MFSA 2026-43 Security Vulnerabilities fixed in Thunderbird 150.0.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-44
MFSA 2026-44 Security Vulnerabilities fixed in Thunderbird 140.10.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-45
MFSA 2026-45 Security Vulnerabilities fixed in Firefox 150.0.3
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-46
MFSA 2026-46 Security Vulnerabilities fixed in Firefox 151
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-47
MFSA 2026-47 Security Vulnerabilities fixed in Firefox ESR 115.36
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-48
MFSA 2026-48 Security Vulnerabilities fixed in Firefox ESR 140.11
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-49
MFSA 2026-49 Security Vulnerabilities fixed in Firefox for iOS 151.0
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-50
MFSA 2026-50 Security Vulnerabilities fixed in Thunderbird 151
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-51
MFSA 2026-51 Security Vulnerabilities fixed in Thunderbird 140.11
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-52
MFSA 2026-52 Security Vulnerabilities fixed in Firefox for iOS 151.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-53
MFSA 2026-53 Security Vulnerabilities fixed in Firefox for iOS 151.2
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-54
MFSA 2026-54 Security Vulnerabilities fixed in Firefox 151.0.3
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-55
MFSA 2026-55 Security Vulnerabilities fixed in Focus for iOS / Klar 151.3.1
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →MOZILLAMOZILLA-PRODUCTS-MFSA2026-56
MFSA 2026-56 Security Vulnerabilities fixed in Firefox for iOS 152.0
Official Mozilla security advisory for Mozilla products.
Release notes and known issues →