A firefox-esr security update has been released for Debian GNU/Linux 8 LTS.

Package : firefox-esr
Version : 68.4.0esr-1~deb8u1
CVE ID : CVE-2019-17016 CVE-2019-17017 CVE-2019-17022 CVE-2019-17024
CVE-2019-17026

Multiple security issues have been found in the Mozilla Firefox
web browser, which could potentially result in the execution
of arbitrary code, data exfiltration or cross-site scripting.

For Debian 8 "Jessie", these problems have been fixed in version
68.4.0esr-1~deb8u1.

We recommend that you upgrade your firefox-esr packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS