A thunderbird security update has been released for CentOS 7.

CESA-2023:0456 Important CentOS 7 thunderbird Security Update

CentOS Errata and Security Advisory 2023:0456 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2023:0456

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

x86_64:
a5589b3ed616bfece0771799ef3774cb33d200e987dba38dc365b6df40958657 thunderbird-102.7.1-1.el7.centos.x86_64.rpm

Source:
b5085ea872a549ecfe3412f771d7244e8e5d9465064dfda05772834cc7fe5bba thunderbird-102.7.1-1.el7.centos.src.rpm