This file is indexed.

/usr/share/xul-ext/greasemonkey/modules/extractMeta.js is in xul-ext-greasemonkey 3.8-1~deb8u1.

This file is owned by root:root, with mode 0o644.

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var EXPORTED_SYMBOLS = ['extractMeta'];

var gAllMetaRegexp = new RegExp(
    '^(\u00EF\u00BB\u00BF)?// ==UserScript==([\\s\\S]*?)^// ==/UserScript==', 'm');

/** Get just the stuff between ==UserScript== lines. */
function extractMeta(aSource) {
  var meta = aSource.match(gAllMetaRegexp);
  if (meta) return meta[2].replace(/^\s+/, '');
  return '';
}