Mozilla firefox is vulnerable to denial of service. The vulnerability exists through a use-after-free error in worker destruction.
lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html
lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html
access.redhat.com/errata/RHSA-2019:4108
access.redhat.com/security/updates/classification/#critical
bugzilla.mozilla.org/show_bug.cgi?id=1546331
usn.ubuntu.com/4241-1/
www.mozilla.org/en-US/security/advisories/mfsa2019-37/
www.mozilla.org/security/advisories/mfsa2019-36/
www.mozilla.org/security/advisories/mfsa2019-37/
www.mozilla.org/security/advisories/mfsa2019-38/