A web page could trick a user into setting that site as the default handler for a custom URL protocol. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefoxUpgrade firefox-x11 | Mar 13, 2025 | Mar 4, 2025 |
| Amazon Linux Ami 2 | — | Upgrade firefox-debuginfoUpgrade thunderbirdUpgrade thunderbird-debuginfoUpgrade firefox | Apr 2, 2025 | Mar 4, 2025 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Mar 10, 2025 | Mar 4, 2025 |
| Freebsd | — | Upgrade thunderbirdUpgrade firefoxUpgrade librewolfUpgrade firefox-esr | Apr 5, 2025 | Apr 3, 2025 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade www-client/firefox.Upgrade mail-client/thunderbird.Upgrade dev-lang/spidermonkey.Upgrade www-client/firefox-bin. | May 13, 2025 | Mar 4, 2025 |
| Mfsa2025 14 | — | Upgrade to Mozilla Firefox version 136.0Upgrade to the latest version of Mozilla Firefox | Mar 5, 2025 | Mar 4, 2025 |
| Mfsa2025 16 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 128.8 | Mar 5, 2025 | Mar 4, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 128.8Upgrade to the latest version of Mozilla Thunderbird | Mar 5, 2025 | Mar 4, 2025 |
| Oracle_linux | — | Upgrade firefoxUpgrade firefox-x11 | Mar 10, 2025 | Mar 4, 2025 |
| Redhat_linux | — | Upgrade firefoxUpgrade firefox-debugsourceUpgrade firefox-debuginfoUpgrade firefox-x11No solution exists | Mar 10, 2025 | Mar 4, 2025 |
| Rocky_linux | — | Upgrade firefoxUpgrade firefox-debugsourceUpgrade firefox-debuginfo | Jul 31, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade MozillaFirefox-translations-commonUpgrade mozillafirefox-branding-upstreamUpgrade mozjs128-develUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbirdUpgrade MozillaFirefox-develUpgrade MozillaThunderbird-translations-commonUpgrade mozjs128Upgrade MozillaFirefoxUpgrade libmozjs-128-0Upgrade MozillaFirefox-translations-other | Mar 6, 2025 | Mar 4, 2025 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Mar 10, 2025 | Mar 4, 2025 |
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