diff -r 000000000000 -r 6474c204b198 browser/base/content/test/general/browser_pageInfo.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/base/content/test/general/browser_pageInfo.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,38 @@
+function test() {
+  waitForExplicitFinish();
+
+  var pageInfo;
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  gBrowser.selectedBrowser.addEventListener("load", function loadListener() {
+    gBrowser.selectedBrowser.removeEventListener("load", loadListener, true);
+
+    Services.obs.addObserver(observer, "page-info-dialog-loaded", false);
+    pageInfo = BrowserPageInfo();
+  }, true);
+  content.location =
+    "https://example.com/browser/browser/base/content/test/general/feed_tab.html";
+
+  function observer(win, topic, data) {
+    Services.obs.removeObserver(observer, "page-info-dialog-loaded");
+    handlePageInfo();
+  }
+
+  function handlePageInfo() {
+    ok(pageInfo.document.getElementById("feedTab"), "Feed tab");
+    let feedListbox = pageInfo.document.getElementById("feedListbox");
+    ok(feedListbox, "Feed list");
+
+    var feedRowsNum = feedListbox.getRowCount();
+    is(feedRowsNum, 3, "Number of feeds listed");
+
+    for (var i = 0; i < feedRowsNum; i++) {
+      let feedItem = feedListbox.getItemAtIndex(i);
+      is(feedItem.getAttribute("name"), i + 1, "Feed name");
+    }
+
+    pageInfo.close();
+    gBrowser.removeCurrentTab();
+    finish();
+  }
+}