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When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was invalid or the SOCKS proxy was not responding. This vulnerability was fixed in Firefox 140 and Thunderbird 140.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade firefox | Jul 5, 2025 | Jul 4, 2025 |
| Mfsa2025 51 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox version 140.0 | Jun 25, 2025 | Jun 24, 2025 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 140.0Upgrade to the latest version of Mozilla Thunderbird | Jul 3, 2025 | Jun 24, 2025 |
| Suse | — | Upgrade MozillaFirefox-develUpgrade pipewire-toolsUpgrade pipewire-modules-0_3Upgrade gstreamer-plugin-pipewireUpgrade MozillaFirefox-translations-commonUpgrade xdg-desktop-portalUpgrade libpipewire-0_3-0Upgrade mozillafirefox-branding-upstreamUpgrade pipewire-spa-plugins-0_2Upgrade MozillaThunderbirdUpgrade xdg-desktop-portal-develUpgrade pipewire-langUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefoxUpgrade pipewire-modulesUpgrade MozillaThunderbird-translations-commonUpgrade pipewireUpgrade xdg-desktop-portal-langUpgrade mozillafirefox-branding-sleUpgrade MozillaThunderbird-translations-otherUpgrade pipewire-spa-tools | Jul 22, 2025 | Jun 24, 2025 |
| Ubuntu | — | Upgrade thunderbird | Jun 26, 2025 | Jun 24, 2025 |
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