A thunderbird security update has been released for CentOS 7.

CESA-2022:0127 Important CentOS 7 thunderbird Security Update

CentOS Errata and Security Advisory 2022:0127 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2022:0127

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

x86_64:
151bddd3018c3cf341e45301fea7e855900839a749c197c0037edde602eaef35 thunderbird-91.5.0-1.el7.centos.x86_64.rpm

Source:
91c6a1ec8b49d2f0883bde205114bb7573106a5acd86a2344d652241f7150ee9 thunderbird-91.5.0-1.el7.centos.src.rpm