Malicious websites could have confused Firefox into showing the wrong origin when asking to launch a program and handling an external URL protocol. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Firefox | Mozilla | * | 96.0 (excluding) |
Firefox_esr | Mozilla | * | 91.5 (excluding) |
Thunderbird | Mozilla | * | 91.5 (excluding) |