Mozilla sent Version 39.0.3 to the release channel due to a critical vulnerability in Firefox's PDF Viewer to search for sensitive files on users' local file systems. Additional information about the vulnerability is available in the Mozilla Security Blog.
The update includes one (1) critical security update. Firefox ESR version has been updated to 38.1.1.
The update includes one (1) critical security update. Firefox ESR version has been updated to 38.1.1.