This update for MozillaFirefox fixes the following issues: Mozilla Firefox was updated to 68.3esr Security issues fixed: - CVE-2019-17008: Fixed a use-after-free in worker destruction - CVE-2019-13722: Fixed a stack corruption due to incorrect number of arguments in WebRTC code - CVE-2019-11745: Fixed an out of bounds write in NSS when encrypting with a block cipher - CVE-2019-17009: Fixed an issue where updater temporary files accessible to unprivileged processes - CVE-2019-17010: Fixed a use-after-free when performing device orientation checks - CVE-2019-17005: Fixed a buffer overflow in plain text serializer - CVE-2019-17011: Fixed a use-after-free when retrieving a document in antitracking - CVE-2019-17012: Fixed multiple memmory issues