You can set plugins.enumerable_names to the empty string, or to the plugins you want returned. Unfortunately, this was recently removed.[1]<p>[1]: <a href="https:&#x2F;&#x2F;bugzilla.mozilla.org&#x2F;show_bug.cgi?id=1169945" rel="nofollow">https:&#x2F;&#x2F;bugzilla.mozilla.org&#x2F;show_bug.cgi?id=1169945</a>