FreeBSD: (Multiple Advisories) (CVE-2019-11708)

Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxed parent process opening web content chosen by a compromised child process. When combined with additional vulnerabilities this could result in executing arbitrary code on the user's computer. This vulnerability affects Firefox ESR less than 60.7.2, Firefox less than 67.0.4, and Thunderbird less than 60.7.2.