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On Windows 10, when using the 'Save As' functionality, an attacker could have tricked the browser into saving the file with a disallowed extension such as `.url` by including an invalid character in the extension. *Note:* This issue only affected Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Mfsa2024 25 | — | Upgrade to Mozilla Firefox version 127.0Upgrade to the latest version of Mozilla Firefox | Jun 12, 2024 | Jun 11, 2024 |
| Mfsa2024 26 | — | Upgrade to the latest version of Mozilla FirefoxUpgrade to Mozilla Firefox ESR version 115.12 | Jun 12, 2024 | Jun 11, 2024 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 115.12Upgrade to the latest version of Mozilla Thunderbird | Jun 14, 2024 | Jun 11, 2024 |
| Suse | — | Upgrade MozillaFirefoxUpgrade MozillaThunderbirdUpgrade MozillaFirefox-translations-commonUpgrade MozillaFirefox-translations-otherUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefox-devel | Jun 13, 2024 | Jun 11, 2024 |
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