diff -r 000000000000 -r 6474c204b198 toolkit/crashreporter/test/browser/browser_aboutCrashes.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/crashreporter/test/browser/browser_aboutCrashes.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,32 @@
+function check_crash_list(tab, crashes) {
+  let doc = gBrowser.getBrowserForTab(tab).contentDocument;
+  let crashlinks = doc.getElementById("tbody").getElementsByTagName("a");
+  is(crashlinks.length, crashes.length, "about:crashes lists correct number of crash reports");
+  for(let i = 0; i < crashes.length; i++) {
+    is(crashlinks[i].firstChild.textContent, crashes[i].id, i + ": crash ID is correct");
+  }
+  cleanup_fake_appdir();
+  gBrowser.removeTab(tab);
+  finish();
+}
+
+function test() {
+  waitForExplicitFinish();
+  let appD = make_fake_appdir();
+  let crD = appD.clone();
+  crD.append("Crash Reports");
+  let crashes = add_fake_crashes(crD, 5);
+  // sanity check
+  let dirSvc = Components.classes["@mozilla.org/file/directory_service;1"]
+                         .getService(Components.interfaces.nsIProperties);
+  let appDtest = dirSvc.get("UAppData", Components.interfaces.nsILocalFile);
+  ok(appD.equals(appDtest), "directory service provider registered ok");
+  let tab = gBrowser.selectedTab = gBrowser.addTab("about:blank");
+  let browser = gBrowser.getBrowserForTab(tab);
+  browser.addEventListener("load", function() {
+    browser.removeEventListener("load", arguments.callee, true);
+    ok(true, "about:crashes loaded");
+    executeSoon(function() { check_crash_list(tab, crashes); });
+  }, true);
+  browser.loadURI("about:crashes", null, null);
+}