The Tor Browser / file revision

 // ----------------------------------------------------------------------------

 // Tests installing an unsigned add-on through a navigation. Should not be

 // blocked since the referer is whitelisted.

 function test() {

   Harness.installConfirmCallback = confirm_install;

   Harness.installsCompletedCallback = finish_test;

   Harness.setup();

   var pm = Services.perms;

   pm.add(makeURI("http://example.org/"), "install", pm.ALLOW_ACTION);

   var triggers = encodeURIComponent(JSON.stringify({

     "Unsigned XPI": TESTROOT2 + "unsigned.xpi"

   }));

   gBrowser.selectedTab = gBrowser.addTab();

   gBrowser.loadURI(TESTROOT + "unsigned.xpi", makeURI(TESTROOT2 + "test.html"));

 }

 function confirm_install(window) {

   return false;

 }

 function finish_test(count) {

   is(count, 0, "No add-ons should have been installed");

   Services.perms.remove("example.org", "install");

   gBrowser.removeCurrentTab();

   Harness.finish();

 }