Variable: goto-address-fontify-p
goto-address-fontify-p is a customizable variable defined in
goto-addr.el.gz.
Value
t
Documentation
Non-nil means URLs and e-mail addresses in buffer are fontified.
But only if goto-address-highlight-p is also non-nil.
Source Code
;; Defined in /usr/src/emacs/lisp/net/goto-addr.el.gz
;; I don't expect users to want fontify'ing without highlighting.
(defcustom goto-address-fontify-p t
"Non-nil means URLs and e-mail addresses in buffer are fontified.
But only if `goto-address-highlight-p' is also non-nil."
:type 'boolean)