Mozilla Firefox for iOS Cookie Storage Vulnerability in Incognito Mode
Vulnerability
A vulnerability exists in Firefox for iOS versions prior to 143.1, where cookie storage for non-HTML temporary documents was improperly shared with regular browsing content. This flaw allowed information from private tabs to leak out of Incognito mode, even after all tabs had been closed.
Impact
Exiting private browsing mode, data from private tabs could be accessed in normal browsing.
Remediation
Users can update to Firefox for iOS version 143.1 to address this vulnerability.
Added: Sep 30, 2025, 1:18 PM
Updated: Sep 30, 2025, 2:25 PM
Vulnerability Rating
Custom Algorithm
spread
0.0impact
2.5exploitability
6.4remediation
7.7relevance
0.6threat
0.0urgency
2.9incentive
0.8Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.