Mark firefox 1.0.8 FORBIDDEN and set one month EXPIRATION_DATE due to
several vulnerabilities which allows code execution.
On the mozilla page with known vulnerabilities  they state:
Firefox 1.0 is no longer supported and the last update,
Firefox 1.0.8, is affected by several vulnerabilities fixed in
newer versions of the program. All users are urged to upgrade
to the newest version of Firefox.
With hat: security-officer