I suspect that this is a result of upstream's decision to no longer make it possible to build the browser without the Javascript component.
http://news.slashdot.org/story/13/07/01/1547212/firefox-23-makes-javascript-obligatory -- Martin-Éric -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
