Oh, Not Now writes "Mozilla Firefox 184.108.40.206, mere hours old, is vulnerable by default to a directory traversal trick, via the view-source mechanism. Although mitigated by the NoScript plug-in, this is quite a serious bug — the default installation is vulnerable from the get-go."
Never appeal to a man's "better nature." He may not have one.
Invoking his self-interest gives you more leverage.
-- Lazarus Long