CVE-2025-10859

Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing information from private tabs to escape Incognito mode even after the user closed all tabs. This vulnerability was fixed in Firefox for iOS 143.1...

CVE-2025-10859

Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing information from private tabs to escape Incognito mode even after the user closed all tabs. This vulnerability was fixed in Firefox for iOS 143.1...

PT-2025-39982

Name of the Vulnerable Software and Affected Versions Firefox for iOS versions prior to 143.1 Description A flaw existed in how Firefox for iOS handled cookie storage for non-HTML temporary documents. This resulted in incorrect sharing of cookie storage between non-HTML temporary documents and...

Security Vulnerabilities fixed in Firefox for iOS 143.1 — Mozilla

Cookie storage for non-HTML temporary documents was being shared incorrectly with normal browsing content, allowing information from private tabs to escape Incognito mode even after the user closed all tabs...