USN-4978-1: Firefox vulnerabilities
Multiple security issues were discovered in Firefox. If a user were
tricked into opening a specially crafted website, an attacker could
potentially exploit these to cause a denial of service, re-enable
camera devices without an additional permission prompt, spoof the browser
UI, or execute arbitrary code. (CVE-2021-29959, CVE-2021-29961,
CVE-2021-29966, CVE-2021-29967)
It was discovered that filenames printed from private browsing mode were
incorrectly retained in preferences. A local attacker could potentially
exploit this to obtain sensitive information. (CVE-2021-29960)
Source: USN-4978-1: Firefox vulnerabilities