Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

127 files changed, 5207 insertions, 0 deletions

diff --git a/security/manager/ssl/tests/mochitest/browser/browser.ini b/security/manager/ssl/tests/mochitest/browser/browser.ini
new file mode 100644
index 0000000000..8ca1cb1d0d
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser.ini
@@ -0,0 +1,40 @@
+[DEFAULT]
+tags = psm
+support-files =
+  *.pem
+  head.js
+  hsts_headers.sjs
+  hsts_headers_framed.html
+  some_content.html
+  some_content_framed.html
+  browser_clientAuth_speculative_connection.html
+
+[browser_HSTS.js]
+https_first_disabled = true
+[browser_add_exception_dialog.js]
+[browser_bug627234_perwindowpb.js]
+[browser_certViewer.js]
+skip-if = verify
+[browser_certificateManager.js]
+[browser_clientAuthRememberService.js]
+skip-if =
+  os == "win" && os_version == "6.1" # Skip on Azure - frequent failure
+[browser_clientAuth_connection.js]
+# Any test that has to delete certificates (e.g. as part of cleanup) is
+# fundamentally incompatible with verify due to how NSS handles deleting
+# certificates.
+skip-if =
+  verify
+  socketprocess_networking
+  os == "win" && os_version == "6.1" # Skip on Azure - frequent failure
+[browser_clientAuth_speculative_connection.js]
+skip-if = socketprocess_networking
+[browser_clientAuth_ui.js]
+[browser_deleteCert_ui.js]
+[browser_downloadCert_ui.js]
+[browser_editCACertTrust.js]
+# An earlier attempt at landing this test resulted in frequent intermittent
+# failures, almost entirely on Linux. See Bug 1309519.
+skip-if = os == "linux"
+[browser_exportP12_passwordUI.js]
+[browser_loadPKCS11Module_ui.js]
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_HSTS.js b/security/manager/ssl/tests/mochitest/browser/browser_HSTS.js
new file mode 100644
index 0000000000..f578ac7c4f
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_HSTS.js
@@ -0,0 +1,277 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Tests that HTTP Strict Transport Security (HSTS) headers are noted as appropriate.
+
+// Register a cleanup function to clear all accumulated HSTS state when this
+// test is done.
+add_task(async function register_cleanup() {
+  registerCleanupFunction(() => {
+    let sss = Cc["@mozilla.org/ssservice;1"].getService(
+      Ci.nsISiteSecurityService
+    );
+    sss.clearAll();
+  });
+});
+
+// In the absense of HSTS information, no upgrade should happen.
+add_task(async function test_no_hsts_information_no_upgrade() {
+  let httpUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "http://example.com"
+    ) + "some_content.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, httpUrl);
+  Assert.equal(gBrowser.selectedBrowser.currentURI.scheme, "http");
+  gBrowser.removeCurrentTab();
+});
+
+// Visit a secure site that sends an HSTS header to set up the rest of the
+// test.
+add_task(async function see_hsts_header() {
+  let setHstsUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "https://example.com"
+    ) + "hsts_headers.sjs";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, setHstsUrl);
+  gBrowser.removeCurrentTab();
+});
+
+// Given a known HSTS host, future http navigations to that domain will be
+// upgraded.
+add_task(async function test_http_upgrade() {
+  let httpUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "http://example.com"
+    ) + "some_content.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, httpUrl);
+  Assert.equal(gBrowser.selectedBrowser.currentURI.scheme, "https");
+  gBrowser.removeCurrentTab();
+});
+
+// http navigations to unrelated hosts should not be upgraded.
+add_task(async function test_unrelated_domain_no_upgrade() {
+  let differentHttpUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "http://example.org"
+    ) + "some_content.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, differentHttpUrl);
+  Assert.equal(gBrowser.selectedBrowser.currentURI.scheme, "http");
+  gBrowser.removeCurrentTab();
+});
+
+// http navigations in private contexts shouldn't use information from
+// non-private contexts, so no upgrade should occur.
+add_task(async function test_private_window_no_upgrade() {
+  await SpecialPowers.pushPrefEnv({
+    set: [["dom.security.https_first_pbm", false]],
+  });
+  let privateWindow = OpenBrowserWindow({ private: true });
+  await BrowserTestUtils.firstBrowserLoaded(privateWindow, false);
+  let url =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "http://example.com"
+    ) + "some_content.html";
+  await BrowserTestUtils.openNewForegroundTab(privateWindow.gBrowser, url);
+  Assert.equal(
+    privateWindow.gBrowser.selectedBrowser.currentURI.scheme,
+    "http"
+  );
+  privateWindow.gBrowser.removeCurrentTab();
+  privateWindow.close();
+});
+
+// Since the header didn't specify "includeSubdomains", visiting a subdomain
+// should not result in an upgrade.
+add_task(async function test_subdomain_no_upgrade() {
+  let subdomainHttpUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "http://test1.example.com"
+    ) + "some_content.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, subdomainHttpUrl);
+  Assert.equal(gBrowser.selectedBrowser.currentURI.scheme, "http");
+  gBrowser.removeCurrentTab();
+});
+
+// Now visit a secure site that sends an HSTS header that also includes subdomains.
+add_task(async function see_hsts_header_include_subdomains() {
+  let setHstsUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "https://example.com"
+    ) + "hsts_headers.sjs?includeSubdomains";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, setHstsUrl);
+  gBrowser.removeCurrentTab();
+});
+
+// Now visiting a subdomain should result in an upgrade.
+add_task(async function test_subdomain_upgrade() {
+  let subdomainHttpUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "http://test1.example.com"
+    ) + "some_content.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, subdomainHttpUrl);
+  Assert.equal(gBrowser.selectedBrowser.currentURI.scheme, "https");
+  gBrowser.removeCurrentTab();
+});
+
+// Visiting a subdomain with https should result in an https URL (this isn't an
+// upgrade - this test is essentially a consistency check).
+add_task(async function test_already_https() {
+  let subdomainHttpsUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "https://test2.example.com"
+    ) + "some_content.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, subdomainHttpsUrl);
+  Assert.equal(gBrowser.selectedBrowser.currentURI.scheme, "https");
+  gBrowser.removeCurrentTab();
+});
+
+// Test that subresources are upgraded.
+add_task(async function test_iframe_upgrade() {
+  let framedUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "https://example.com"
+    ) + "some_content_framed.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, framedUrl);
+  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () {
+    await ContentTaskUtils.waitForCondition(() => {
+      let frame = content.document.getElementById("frame");
+      if (frame) {
+        return frame.baseURI.startsWith("https://");
+      }
+      return false;
+    });
+  });
+  gBrowser.removeCurrentTab();
+});
+
+// Clear state.
+add_task(async function clear_hsts_state() {
+  let sss = Cc["@mozilla.org/ssservice;1"].getService(
+    Ci.nsISiteSecurityService
+  );
+  sss.clearAll();
+});
+
+// Make sure this test is valid.
+add_task(async function test_no_hsts_information_no_upgrade_again() {
+  let httpUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "http://example.com"
+    ) + "some_content.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, httpUrl);
+  Assert.equal(gBrowser.selectedBrowser.currentURI.scheme, "http");
+  gBrowser.removeCurrentTab();
+});
+
+// Visit a site with an iframe that loads first-party content that sends an
+// HSTS header. The header should be heeded because it's first-party.
+add_task(async function see_hsts_header_in_framed_first_party_context() {
+  let framedUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "https://example.com"
+    ) + "hsts_headers_framed.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, framedUrl);
+  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () {
+    await ContentTaskUtils.waitForCondition(() => {
+      return content.document.getElementById("done");
+    });
+  });
+  gBrowser.removeCurrentTab();
+});
+
+// Check that the framed, first-party header was heeded.
+add_task(async function test_http_upgrade_after_framed_first_party_header() {
+  let httpUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "http://example.com"
+    ) + "some_content.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, httpUrl);
+  Assert.equal(gBrowser.selectedBrowser.currentURI.scheme, "https");
+  gBrowser.removeCurrentTab();
+});
+
+// Visit a site with an iframe that loads third-party content that sends an
+// HSTS header. The header should be ignored because it's third-party.
+add_task(async function see_hsts_header_in_third_party_context() {
+  let framedUrl =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "https://example.com"
+    ) + "hsts_headers_framed.html?third-party";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, framedUrl);
+  await SpecialPowers.spawn(gBrowser.selectedBrowser, [], async function () {
+    await ContentTaskUtils.waitForCondition(() => {
+      return content.document.getElementById("done");
+    });
+  });
+  gBrowser.removeCurrentTab();
+});
+
+// Since the HSTS header was not received in a first-party context, no upgrade
+// should occur.
+add_task(async function test_no_upgrade_for_third_party_header() {
+  let url =
+    getRootDirectory(gTestPath).replace(
+      "chrome://mochitests/content",
+      "http://example.org"
+    ) + "some_content.html";
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, url);
+  Assert.equal(gBrowser.selectedBrowser.currentURI.scheme, "http");
+  gBrowser.removeCurrentTab();
+});
+
+// Clear state again.
+add_task(async function clear_hsts_state_again() {
+  let sss = Cc["@mozilla.org/ssservice;1"].getService(
+    Ci.nsISiteSecurityService
+  );
+  sss.clearAll();
+});
+
+// HSTS information encountered in private contexts should not be used in
+// non-private contexts.
+add_task(
+  async function test_no_upgrade_for_HSTS_information_from_private_window() {
+    await SpecialPowers.pushPrefEnv({
+      set: [["dom.security.https_first_pbm", false]],
+    });
+    let privateWindow = OpenBrowserWindow({ private: true });
+    await BrowserTestUtils.firstBrowserLoaded(privateWindow, false);
+    let setHstsUrl =
+      getRootDirectory(gTestPath).replace(
+        "chrome://mochitests/content",
+        "https://example.com"
+      ) + "hsts_headers.sjs";
+    await BrowserTestUtils.openNewForegroundTab(
+      privateWindow.gBrowser,
+      setHstsUrl
+    );
+    privateWindow.gBrowser.removeCurrentTab();
+
+    let httpUrl =
+      getRootDirectory(gTestPath).replace(
+        "chrome://mochitests/content",
+        "http://example.com"
+      ) + "some_content.html";
+    await BrowserTestUtils.openNewForegroundTab(gBrowser, httpUrl);
+    Assert.equal(gBrowser.selectedBrowser.currentURI.scheme, "http");
+    gBrowser.removeCurrentTab();
+
+    privateWindow.close();
+  }
+);
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_add_exception_dialog.js b/security/manager/ssl/tests/mochitest/browser/browser_add_exception_dialog.js
new file mode 100644
index 0000000000..d04af61036
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_add_exception_dialog.js
@@ -0,0 +1,69 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+// This test makes sure that adding certificate exceptions behaves correctly
+// when done from the prefs window
+
+XPCOMUtils.defineLazyModuleGetters(this, {
+  BrowserWindowTracker: "resource:///modules/BrowserWindowTracker.jsm",
+});
+
+function test() {
+  const EXCEPTIONS_DLG_URL = "chrome://pippki/content/exceptionDialog.xhtml";
+  const EXCEPTIONS_DLG_FEATURES = "chrome,centerscreen";
+  const INVALID_CERT_DOMAIN = "self-signed.example.com";
+  const INVALID_CERT_LOCATION = "https://" + INVALID_CERT_DOMAIN + "/";
+  waitForExplicitFinish();
+
+  function testAddCertificate() {
+    win.removeEventListener("load", testAddCertificate);
+    Services.obs.addObserver(async function onCertUI(aSubject, aTopic, aData) {
+      Services.obs.removeObserver(onCertUI, "cert-exception-ui-ready");
+      ok(win.gCert, "The certificate information should be available now");
+
+      let dialog = win.document.getElementById("exceptiondialog");
+      let confirmButton = dialog.getButton("extra1");
+      confirmButton.click();
+      ok(
+        params.exceptionAdded,
+        "The certificate exception should have been added"
+      );
+
+      registerCleanupFunction(() => {
+        let certOverrideService = Cc[
+          "@mozilla.org/security/certoverride;1"
+        ].getService(Ci.nsICertOverrideService);
+        certOverrideService.clearValidityOverride(INVALID_CERT_DOMAIN, -1, {});
+      });
+
+      BrowserTestUtils.loadURIString(gBrowser, INVALID_CERT_LOCATION);
+      let loaded = await BrowserTestUtils.browserLoaded(
+        gBrowser,
+        false,
+        INVALID_CERT_LOCATION,
+        true
+      );
+      ok(loaded, "The certificate exception should allow the page to load");
+
+      finish();
+    }, "cert-exception-ui-ready");
+  }
+
+  let bWin = BrowserWindowTracker.getTopWindow();
+  let params = {
+    exceptionAdded: false,
+    location: INVALID_CERT_LOCATION,
+    prefetchCert: true,
+  };
+
+  let win = bWin.openDialog(
+    EXCEPTIONS_DLG_URL,
+    "",
+    EXCEPTIONS_DLG_FEATURES,
+    params
+  );
+  win.addEventListener("load", testAddCertificate);
+}
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_bug627234_perwindowpb.js b/security/manager/ssl/tests/mochitest/browser/browser_bug627234_perwindowpb.js
new file mode 100644
index 0000000000..564aca088d
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_bug627234_perwindowpb.js
@@ -0,0 +1,91 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+function whenNewWindowLoaded(aOptions, aCallback) {
+  let win = OpenBrowserWindow(aOptions);
+  win.addEventListener(
+    "load",
+    function () {
+      aCallback(win);
+    },
+    { once: true }
+  );
+}
+
+// This is a template to help porting global private browsing tests
+// to per-window private browsing tests
+function test() {
+  // initialization
+  waitForExplicitFinish();
+  let windowsToClose = [];
+  let testURI = "about:blank";
+  let uri;
+  let gSSService = Cc["@mozilla.org/ssservice;1"].getService(
+    Ci.nsISiteSecurityService
+  );
+
+  function originAttributes(aIsPrivateMode) {
+    return aIsPrivateMode ? { privateBrowsingId: 1 } : {};
+  }
+
+  function doTest(aIsPrivateMode, aWindow, aCallback) {
+    BrowserTestUtils.browserLoaded(aWindow.gBrowser.selectedBrowser).then(
+      () => {
+        uri = aWindow.Services.io.newURI("https://localhost/img.png");
+        gSSService.processHeader(
+          uri,
+          "max-age=1000",
+          originAttributes(aIsPrivateMode)
+        );
+        ok(
+          gSSService.isSecureURI(uri, originAttributes(aIsPrivateMode)),
+          "checking sts host"
+        );
+
+        aCallback();
+      }
+    );
+
+    BrowserTestUtils.loadURIString(aWindow.gBrowser.selectedBrowser, testURI);
+  }
+
+  function testOnWindow(aOptions, aCallback) {
+    whenNewWindowLoaded(aOptions, function (aWin) {
+      windowsToClose.push(aWin);
+      // execute should only be called when need, like when you are opening
+      // web pages on the test. If calling executeSoon() is not necesary, then
+      // call whenNewWindowLoaded() instead of testOnWindow() on your test.
+      executeSoon(function () {
+        aCallback(aWin);
+      });
+    });
+  }
+
+  // this function is called after calling finish() on the test.
+  registerCleanupFunction(function () {
+    windowsToClose.forEach(function (aWin) {
+      aWin.close();
+    });
+    uri = Services.io.newURI("http://localhost");
+    gSSService.resetState(uri);
+  });
+
+  // test first when on private mode
+  testOnWindow({ private: true }, function (aWin) {
+    doTest(true, aWin, function () {
+      // test when not on private mode
+      testOnWindow({}, function (aWin) {
+        doTest(false, aWin, function () {
+          // test again when on private mode
+          testOnWindow({ private: true }, function (aWin) {
+            doTest(true, aWin, function () {
+              finish();
+            });
+          });
+        });
+      });
+    });
+  });
+}
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_certViewer.js b/security/manager/ssl/tests/mochitest/browser/browser_certViewer.js
new file mode 100644
index 0000000000..7f0b8888c1
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_certViewer.js
@@ -0,0 +1,112 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+// Repeatedly opens the certificate viewer dialog with various certificates and
+// determines that the viewer correctly identifies either what usages those
+// certificates are valid for or what errors prevented the certificates from
+// being verified.
+
+add_task(async function testCAandTitle() {
+  let cert = await readCertificate("ca.pem", "CTu,CTu,CTu");
+  let url = getURL(cert);
+  await openCertViewerAndCheckTabName(url, "ca");
+});
+
+add_task(async function testSSLEndEntity() {
+  let cert = await readCertificate("ssl-ee.pem", ",,");
+  let url = getURL(cert);
+  await openCertViewerAndCheckTabName(url, "ssl-ee");
+});
+
+add_task(async function testEmailEndEntity() {
+  let cert = await readCertificate("email-ee.pem", ",,");
+  let url = getURL(cert);
+  await openCertViewerAndCheckTabName(url, "email-ee");
+});
+
+add_task(async function testCodeSignEndEntity() {
+  let cert = await readCertificate("code-ee.pem", ",,");
+  let url = getURL(cert);
+  await openCertViewerAndCheckTabName(url, "code-ee");
+});
+
+add_task(async function testExpired() {
+  let cert = await readCertificate("expired-ca.pem", ",,");
+  let url = getURL(cert);
+  await openCertViewerAndCheckTabName(url, "expired-ca");
+});
+
+add_task(async function testUntrusted() {
+  let cert = await readCertificate("untrusted-ca.pem", "p,p,p");
+  let url = getURL(cert);
+  await openCertViewerAndCheckTabName(url, "untrusted-ca");
+});
+
+add_task(async function testInvalid() {
+  // This certificate has a keyUsage extension asserting cRLSign and
+  // keyCertSign, but it doesn't have a basicConstraints extension. This
+  // shouldn't be valid for any usage. Sadly, we give a pretty bad error
+  // message in this case.
+  let cert = await readCertificate("invalid.pem", ",,");
+  let url = getURL(cert);
+  await openCertViewerAndCheckTabName(url, "invalid");
+});
+
+add_task(async function testLongOID() {
+  // This certificate has a certificatePolicies extension with a policy with a
+  // very long OID. This tests that we don't crash when looking at it.
+  let cert = await readCertificate("longOID.pem", ",,");
+  let url = getURL(cert);
+  await openCertViewerAndCheckTabName(url, "Long OID");
+});
+
+/**
+ * Given a certificate, returns its PEMs (each one of the certificate chain) string in a url.
+ *
+ * @param {object} cert
+ *      A certificate object
+ * @returns {string} an URL for opening the certificate viewer
+ */
+function getURL(cert) {
+  // Note that we don't get the certificate chain as in e.g browser/base/content/browser.js,
+  // because all the .pem files when opened with CS (https://github.com/april/certainly-something)
+  // shows only one certificate
+  let derb64 = encodeURIComponent(cert.getBase64DERString());
+  return `about:certificate?cert=${derb64}`;
+}
+
+/**
+ * Given an certificate URL, opens the new certificate viewer and check
+ * if a certain element exists, with its expected result.
+ *
+ * @param {string} url
+ *        The URL with the certificate info
+ * @param {string} expectedTabName
+ *        The expected name of the tab in the certificate viewer
+ */
+async function openCertViewerAndCheckTabName(url, expectedTabName) {
+  await BrowserTestUtils.withNewTab(
+    { gBrowser, url },
+    async function (browser) {
+      await SpecialPowers.spawn(
+        browser,
+        [expectedTabName],
+        async function (expectedTabName) {
+          let certificateSection = await ContentTaskUtils.waitForCondition(
+            () => {
+              return content.document.querySelector("certificate-section");
+            },
+            "Certificate section found"
+          );
+          let tabName =
+            certificateSection.shadowRoot.querySelector(
+              ".tab[idnumber='0']"
+            ).textContent;
+          Assert.equal(tabName, expectedTabName);
+        }
+      );
+    }
+  );
+}
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_certificateManager.js b/security/manager/ssl/tests/mochitest/browser/browser_certificateManager.js
new file mode 100644
index 0000000000..c6619909d0
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_certificateManager.js
@@ -0,0 +1,105 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+async function checkServerCertificates(win, expectedValues = []) {
+  await TestUtils.waitForCondition(() => {
+    return (
+      win.document.getElementById("serverList").itemChildren.length ==
+      expectedValues.length
+    );
+  }, `Expected to have ${expectedValues.length} but got ${win.document.getElementById("serverList").itemChildren.length}`);
+  await new Promise(win.requestAnimationFrame);
+
+  let labels = win.document
+    .getElementById("serverList")
+    .querySelectorAll("label");
+
+  // The strings we will get from the DOM are localized with Fluent.
+  // This will wait until the translation is applied.
+  if (expectedValues.length) {
+    await BrowserTestUtils.waitForCondition(
+      () => labels[1].value || !!labels[1].textContent.length,
+      "At least one label is populated"
+    );
+  }
+
+  expectedValues.forEach((item, i) => {
+    let hostPort = labels[i * 3].value;
+    let fingerprint = labels[i * 3 + 1].value || labels[i * 3 + 1].textContent;
+
+    Assert.equal(
+      hostPort,
+      item.hostPort,
+      `Expected override to be ${item.hostPort} but got ${hostPort}`
+    );
+
+    Assert.equal(
+      fingerprint,
+      item.fingerprint,
+      `Expected override to have field ${item.fingerprint}`
+    );
+  });
+}
+
+async function deleteOverride(win, expectedLength) {
+  win.document.getElementById("serverList").selectedIndex = 0;
+  await TestUtils.waitForCondition(() => {
+    return (
+      win.document.getElementById("serverList").itemChildren.length ==
+      expectedLength
+    );
+  });
+  let newWinPromise = BrowserTestUtils.domWindowOpenedAndLoaded();
+  // Since the .click() blocks we need to dispatch it to the main thread avoid that.
+  Services.tm.dispatchToMainThread(() =>
+    win.document.getElementById("websites_deleteButton").click()
+  );
+  let newWin = await newWinPromise;
+  newWin.document.getElementById("deleteCertificate").acceptDialog();
+  Assert.equal(
+    win.document.getElementById("serverList").selectedIndex,
+    0,
+    "After deletion we expect the selectedItem to be reset."
+  );
+}
+
+add_task(async function test_cert_manager_server_tab() {
+  let win = await openCertManager();
+
+  await checkServerCertificates(win);
+
+  win.document.getElementById("certmanager").acceptDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  let cert = await readCertificate("md5-ee.pem", ",,");
+  let certOverrideService = Cc[
+    "@mozilla.org/security/certoverride;1"
+  ].getService(Ci.nsICertOverrideService);
+  certOverrideService.rememberValidityOverride(
+    "example.com",
+    443,
+    {},
+    cert,
+    false
+  );
+
+  win = await openCertManager();
+
+  await checkServerCertificates(win, [
+    {
+      hostPort: "example.com:443",
+      fingerprint: cert.sha256Fingerprint,
+    },
+  ]);
+
+  await deleteOverride(win, 1);
+
+  await checkServerCertificates(win, []);
+
+  win.document.getElementById("certmanager").acceptDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  certOverrideService.clearAllOverrides();
+});
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_clientAuthRememberService.js b/security/manager/ssl/tests/mochitest/browser/browser_clientAuthRememberService.js
new file mode 100644
index 0000000000..460379e688
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_clientAuthRememberService.js
@@ -0,0 +1,297 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+"use strict";
+
+/**
+ * Test certificate (i.e. build/pgo/certs/mochitest.client).
+ *
+ * @type {nsIX509Cert}
+ */
+var cert;
+var cert2;
+var cert3;
+
+var sdr = Cc["@mozilla.org/security/sdr;1"].getService(Ci.nsISecretDecoderRing);
+var certDB = Cc["@mozilla.org/security/x509certdb;1"].getService(
+  Ci.nsIX509CertDB
+);
+
+var deleted = false;
+
+const { MockRegistrar } = ChromeUtils.importESModule(
+  "resource://testing-common/MockRegistrar.sys.mjs"
+);
+
+function findCertByCommonName(commonName) {
+  for (let cert of certDB.getCerts()) {
+    if (cert.commonName == commonName) {
+      return cert;
+    }
+  }
+  return null;
+}
+
+async function testHelper(connectURL, expectedURL) {
+  let win = await BrowserTestUtils.openNewBrowserWindow();
+
+  await SpecialPowers.pushPrefEnv({
+    set: [["security.default_personal_cert", "Ask Every Time"]],
+  });
+
+  BrowserTestUtils.loadURIString(win.gBrowser.selectedBrowser, connectURL);
+
+  await BrowserTestUtils.browserLoaded(
+    win.gBrowser.selectedBrowser,
+    false,
+    expectedURL,
+    true
+  );
+  let loadedURL = win.gBrowser.selectedBrowser.documentURI.spec;
+  Assert.ok(
+    loadedURL.startsWith(expectedURL),
+    `Expected and actual URLs should match (got '${loadedURL}', expected '${expectedURL}')`
+  );
+
+  await win.close();
+
+  // This clears the TLS session cache so we don't use a previously-established
+  // ticket to connect and bypass selecting a client auth certificate in
+  // subsequent tests.
+  sdr.logout();
+}
+
+async function openRequireClientCert() {
+  gClientAuthDialogs.chooseCertificateCalled = false;
+  await testHelper(
+    "https://requireclientcert.example.com:443",
+    "https://requireclientcert.example.com/"
+  );
+}
+
+async function openRequireClientCert2() {
+  gClientAuthDialogs.chooseCertificateCalled = false;
+  await testHelper(
+    "https://requireclientcert-2.example.com:443",
+    "https://requireclientcert-2.example.com/"
+  );
+}
+
+// Mock implementation of nsIClientAuthRememberService
+const gClientAuthRememberService = {
+  forgetRememberedDecision(key) {
+    deleted = true;
+    Assert.equal(
+      key,
+      "exampleKey2",
+      "Expected to get the same key that was passed in getDecisions()"
+    );
+  },
+
+  getDecisions() {
+    return [
+      {
+        asciiHost: "example.com",
+        dbKey: cert.dbKey,
+        entryKey: "exampleKey1",
+      },
+      {
+        asciiHost: "example.org",
+        dbKey: cert2.dbKey,
+        entryKey: "exampleKey2",
+      },
+      {
+        asciiHost: "example.test",
+        dbKey: cert3.dbKey,
+        entryKey: "exampleKey3",
+      },
+      {
+        asciiHost: "unavailable.example.com",
+        // This dbKey should not correspond to any real certificate. The first
+        // 8 bytes have to be 0, followed by the lengths of the serial number
+        // and issuer distinguished name, respectively, and then followed by
+        // the bytes of the serial number and finally the encoded issuer
+        // distinguished name. In this case, the serial number is a single 0
+        // byte and the issuer distinguished name is a DER SEQUENCE of length 0
+        // (the bytes 0x30 and 0).
+        // See also the documentation in nsNSSCertificateDB::FindCertByDBKey.
+        dbKey: "AAAAAAAAAAAAAAABAAAAAgAeAA==",
+        entryKey: "exampleKey4",
+      },
+    ];
+  },
+
+  QueryInterface: ChromeUtils.generateQI(["nsIClientAuthRememberService"]),
+};
+
+const gClientAuthDialogs = {
+  _chooseCertificateCalled: false,
+
+  get chooseCertificateCalled() {
+    return this._chooseCertificateCalled;
+  },
+
+  set chooseCertificateCalled(value) {
+    this._chooseCertificateCalled = value;
+  },
+
+  chooseCertificate(
+    hostname,
+    port,
+    organization,
+    issuerOrg,
+    certList,
+    selectedIndex,
+    rememberClientAuthCertificate
+  ) {
+    rememberClientAuthCertificate.value = true;
+    this.chooseCertificateCalled = true;
+    selectedIndex.value = 0;
+    return true;
+  },
+
+  QueryInterface: ChromeUtils.generateQI([Ci.nsIClientAuthDialogs]),
+};
+
+add_task(async function testRememberedDecisionsUI() {
+  cert = findCertByCommonName("Mochitest client");
+  cert2 = await readCertificate("pgo-ca-all-usages.pem", ",,");
+  cert3 = await readCertificate("client-cert-via-intermediate.pem", ",,");
+  isnot(cert, null, "Should be able to find the test client cert");
+  isnot(cert2, null, "Should be able to find pgo-ca-all-usages.pem");
+  isnot(cert3, null, "Should be able to find client-cert-via-intermediate.pem");
+
+  let clientAuthRememberServiceCID = MockRegistrar.register(
+    "@mozilla.org/security/clientAuthRememberService;1",
+    gClientAuthRememberService
+  );
+
+  let win = await openCertManager();
+
+  let listItems = win.document
+    .getElementById("rememberedList")
+    .querySelectorAll("richlistitem");
+
+  Assert.equal(
+    listItems.length,
+    4,
+    "rememberedList has expected number of items"
+  );
+
+  let labels = win.document
+    .getElementById("rememberedList")
+    .querySelectorAll("label");
+
+  Assert.equal(
+    labels.length,
+    12,
+    "rememberedList has expected number of labels"
+  );
+
+  await BrowserTestUtils.waitForCondition(
+    () => !!labels[10].textContent.length,
+    "Localized label is populated"
+  );
+
+  let expectedHosts = [
+    "example.com",
+    "example.org",
+    "example.test",
+    "unavailable.example.com",
+  ];
+  let hosts = [
+    labels[0].value,
+    labels[3].value,
+    labels[6].value,
+    labels[9].value,
+  ];
+  let expectedNames = [
+    cert.commonName,
+    cert2.commonName,
+    cert3.commonName,
+    "(Unavailable)",
+  ];
+  let names = [
+    labels[1].value,
+    labels[4].value,
+    labels[7].value,
+    labels[10].textContent,
+  ];
+  let expectedSerialNumbers = [
+    cert.serialNumber,
+    cert2.serialNumber,
+    cert3.serialNumber,
+    "(Unavailable)",
+  ];
+  let serialNumbers = [
+    labels[2].value,
+    labels[5].value,
+    labels[8].value,
+    labels[11].textContent,
+  ];
+
+  for (let i = 0; i < listItems.length; i++) {
+    Assert.equal(hosts[i], expectedHosts[i], "got expected asciiHost");
+    Assert.equal(names[i], expectedNames[i], "got expected commonName");
+    Assert.equal(
+      serialNumbers[i],
+      expectedSerialNumbers[i],
+      "got expected serialNumber"
+    );
+  }
+
+  win.document.getElementById("rememberedList").selectedIndex = 1;
+  win.document.getElementById("remembered_deleteButton").click();
+
+  Assert.ok(deleted, "Expected forgetRememberedDecision() to get called");
+
+  win.document.getElementById("certmanager").acceptDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  MockRegistrar.unregister(clientAuthRememberServiceCID);
+});
+
+add_task(async function testDeletingRememberedDecisions() {
+  let clientAuthDialogsCID = MockRegistrar.register(
+    "@mozilla.org/nsClientAuthDialogs;1",
+    gClientAuthDialogs
+  );
+  let cars = Cc["@mozilla.org/security/clientAuthRememberService;1"].getService(
+    Ci.nsIClientAuthRememberService
+  );
+
+  await openRequireClientCert();
+  Assert.ok(
+    gClientAuthDialogs.chooseCertificateCalled,
+    "chooseCertificate should have been called if visiting 'requireclientcert.example.com' for the first time"
+  );
+
+  await openRequireClientCert();
+  Assert.ok(
+    !gClientAuthDialogs.chooseCertificateCalled,
+    "chooseCertificate should not have been called if visiting 'requireclientcert.example.com' for the second time"
+  );
+
+  await openRequireClientCert2();
+  Assert.ok(
+    gClientAuthDialogs.chooseCertificateCalled,
+    "chooseCertificate should have been called if visiting 'requireclientcert-2.example.com' for the first time"
+  );
+
+  let originAttributes = { privateBrowsingId: 0 };
+  cars.deleteDecisionsByHost("requireclientcert.example.com", originAttributes);
+
+  await openRequireClientCert();
+  Assert.ok(
+    gClientAuthDialogs.chooseCertificateCalled,
+    "chooseCertificate should have been called after removing all remembered decisions for 'requireclientcert.example.com'"
+  );
+
+  await openRequireClientCert2();
+  Assert.ok(
+    !gClientAuthDialogs.chooseCertificateCalled,
+    "chooseCertificate should not have been called if visiting 'requireclientcert-2.example.com' for the second time"
+  );
+
+  MockRegistrar.unregister(clientAuthDialogsCID);
+});
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_connection.js b/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_connection.js
new file mode 100644
index 0000000000..d8f57c3e8b
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_connection.js
@@ -0,0 +1,401 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+"use strict";
+
+// Tests various scenarios connecting to a server that requires client cert
+// authentication. Also tests that nsIClientAuthDialogs.chooseCertificate
+// is called at the appropriate times and with the correct arguments.
+
+const { MockRegistrar } = ChromeUtils.importESModule(
+  "resource://testing-common/MockRegistrar.sys.mjs"
+);
+
+const DialogState = {
+  // Assert that chooseCertificate() is never called.
+  ASSERT_NOT_CALLED: "ASSERT_NOT_CALLED",
+  // Return that the user selected the first given cert.
+  RETURN_CERT_SELECTED: "RETURN_CERT_SELECTED",
+  // Return that the user canceled.
+  RETURN_CERT_NOT_SELECTED: "RETURN_CERT_NOT_SELECTED",
+};
+
+var sdr = Cc["@mozilla.org/security/sdr;1"].getService(Ci.nsISecretDecoderRing);
+let cars = Cc["@mozilla.org/security/clientAuthRememberService;1"].getService(
+  Ci.nsIClientAuthRememberService
+);
+
+var gExpectedClientCertificateChoices;
+
+// Mock implementation of nsIClientAuthDialogs.
+const gClientAuthDialogs = {
+  _state: DialogState.ASSERT_NOT_CALLED,
+  _rememberClientAuthCertificate: false,
+  _chooseCertificateCalled: false,
+
+  set state(newState) {
+    info(`old state: ${this._state}`);
+    this._state = newState;
+    info(`new state: ${this._state}`);
+  },
+
+  get state() {
+    return this._state;
+  },
+
+  set rememberClientAuthCertificate(value) {
+    this._rememberClientAuthCertificate = value;
+  },
+
+  get rememberClientAuthCertificate() {
+    return this._rememberClientAuthCertificate;
+  },
+
+  get chooseCertificateCalled() {
+    return this._chooseCertificateCalled;
+  },
+
+  set chooseCertificateCalled(value) {
+    this._chooseCertificateCalled = value;
+  },
+
+  chooseCertificate(
+    hostname,
+    port,
+    organization,
+    issuerOrg,
+    certList,
+    selectedIndex,
+    rememberClientAuthCertificate
+  ) {
+    this.chooseCertificateCalled = true;
+    Assert.notEqual(
+      this.state,
+      DialogState.ASSERT_NOT_CALLED,
+      "chooseCertificate() should be called only when expected"
+    );
+
+    rememberClientAuthCertificate.value = this.rememberClientAuthCertificate;
+
+    Assert.equal(
+      hostname,
+      "requireclientcert.example.com",
+      "Hostname should be 'requireclientcert.example.com'"
+    );
+    Assert.equal(port, 443, "Port should be 443");
+    Assert.equal(
+      organization,
+      "",
+      "Server cert Organization should be empty/not present"
+    );
+    Assert.equal(
+      issuerOrg,
+      "Mozilla Testing",
+      "Server cert issuer Organization should be 'Mozilla Testing'"
+    );
+
+    // For mochitests, the cert at build/pgo/certs/mochitest.client should be
+    // selectable as well as one of the PGO certs we loaded in `setup`, so we do
+    // some brief checks to confirm this.
+    Assert.notEqual(certList, null, "Cert list should not be null");
+    Assert.equal(
+      certList.length,
+      gExpectedClientCertificateChoices,
+      `${gExpectedClientCertificateChoices} certificates should be available`
+    );
+
+    for (let cert of certList.enumerate(Ci.nsIX509Cert)) {
+      Assert.notEqual(cert, null, "Cert list should contain nsIX509Certs");
+      Assert.equal(
+        cert.issuerCommonName,
+        "Temporary Certificate Authority",
+        "cert should have expected issuer CN"
+      );
+    }
+
+    if (this.state == DialogState.RETURN_CERT_SELECTED) {
+      selectedIndex.value = 0;
+      return true;
+    }
+    return false;
+  },
+
+  QueryInterface: ChromeUtils.generateQI(["nsIClientAuthDialogs"]),
+};
+
+add_setup(async function () {
+  let clientAuthDialogsCID = MockRegistrar.register(
+    "@mozilla.org/nsClientAuthDialogs;1",
+    gClientAuthDialogs
+  );
+  registerCleanupFunction(() => {
+    MockRegistrar.unregister(clientAuthDialogsCID);
+  });
+
+  // This CA has the expected keyCertSign and cRLSign usages. It should not be
+  // presented for use as a client certificate.
+  await readCertificate("pgo-ca-regular-usages.pem", "CTu,CTu,CTu");
+  // This CA has all keyUsages. For compatibility with preexisting behavior, it
+  // will be presented for use as a client certificate.
+  await readCertificate("pgo-ca-all-usages.pem", "CTu,CTu,CTu");
+  // This client certificate was issued by an intermediate that was issued by
+  // the test CA. The server only lists the test CA's subject distinguished name
+  // as an acceptible issuer name for client certificates. If the implementation
+  // can determine that the test CA is a root CA for the client certificate and
+  // thus is acceptible to use, it should be included in the chooseCertificate
+  // callback. At the beginning of this test (speaking of this file as a whole),
+  // the client is not aware of the intermediate, and so it is not available in
+  // the callback.
+  await readCertificate("client-cert-via-intermediate.pem", ",,");
+  // This certificate has an id-kp-OCSPSigning EKU. Client certificates
+  // shouldn't have this EKU, but there is at least one private PKI where they
+  // do. For interoperability, such certificates will be presented for use.
+  await readCertificate("client-cert-with-ocsp-signing.pem", ",,");
+  gExpectedClientCertificateChoices = 3;
+});
+
+/**
+ * Test helper for the tests below.
+ *
+ * @param {string} prefValue
+ *        Value to set the "security.default_personal_cert" pref to.
+ * @param {string} urlToNavigate
+ *        The URL to navigate to.
+ * @param {string} expectedURL
+ *        If the connection is expected to load successfully, the URL that
+ *        should load. If the connection is expected to fail and result in an
+ *        error page, |undefined|.
+ * @param {boolean} expectCallingChooseCertificate
+ *        Determines whether we expect chooseCertificate to be called.
+ * @param {object} options
+ *        Optional options object to pass on to the window that gets opened.
+ * @param {string} expectStringInPage
+ *        Optional string that is expected to be in the content of the page
+ *        once it loads.
+ */
+async function testHelper(
+  prefValue,
+  urlToNavigate,
+  expectedURL,
+  expectCallingChooseCertificate,
+  options = undefined,
+  expectStringInPage = undefined
+) {
+  gClientAuthDialogs.chooseCertificateCalled = false;
+  await SpecialPowers.pushPrefEnv({
+    set: [["security.default_personal_cert", prefValue]],
+  });
+
+  let win = await BrowserTestUtils.openNewBrowserWindow(options);
+
+  BrowserTestUtils.loadURIString(win.gBrowser.selectedBrowser, urlToNavigate);
+  if (expectedURL) {
+    await BrowserTestUtils.browserLoaded(
+      win.gBrowser.selectedBrowser,
+      false,
+      "https://requireclientcert.example.com/",
+      true
+    );
+    let loadedURL = win.gBrowser.selectedBrowser.documentURI.spec;
+    Assert.ok(
+      loadedURL.startsWith(expectedURL),
+      `Expected and actual URLs should match (got '${loadedURL}', expected '${expectedURL}')`
+    );
+  } else {
+    await new Promise(resolve => {
+      let removeEventListener = BrowserTestUtils.addContentEventListener(
+        win.gBrowser.selectedBrowser,
+        "AboutNetErrorLoad",
+        () => {
+          removeEventListener();
+          resolve();
+        },
+        { capture: false, wantUntrusted: true }
+      );
+    });
+  }
+
+  Assert.equal(
+    gClientAuthDialogs.chooseCertificateCalled,
+    expectCallingChooseCertificate,
+    "chooseCertificate should have been called if we were expecting it to be called"
+  );
+
+  if (expectStringInPage) {
+    let pageContent = await SpecialPowers.spawn(
+      win.gBrowser.selectedBrowser,
+      [],
+      async function () {
+        return content.document.body.textContent;
+      }
+    );
+    Assert.ok(
+      pageContent.includes(expectStringInPage),
+      `page should contain the string '${expectStringInPage}' (was '${pageContent}')`
+    );
+  }
+
+  await win.close();
+
+  // This clears the TLS session cache so we don't use a previously-established
+  // ticket to connect and bypass selecting a client auth certificate in
+  // subsequent tests.
+  sdr.logout();
+}
+
+// Test that if a certificate is chosen automatically the connection succeeds,
+// and that nsIClientAuthDialogs.chooseCertificate() is never called.
+add_task(async function testCertChosenAutomatically() {
+  gClientAuthDialogs.state = DialogState.ASSERT_NOT_CALLED;
+  await testHelper(
+    "Select Automatically",
+    "https://requireclientcert.example.com/",
+    "https://requireclientcert.example.com/",
+    false
+  );
+  // This clears all saved client auth certificate state so we don't influence
+  // subsequent tests.
+  cars.clearRememberedDecisions();
+});
+
+// Test that if the user doesn't choose a certificate, the connection fails and
+// an error page is displayed.
+add_task(async function testCertNotChosenByUser() {
+  gClientAuthDialogs.state = DialogState.RETURN_CERT_NOT_SELECTED;
+  await testHelper(
+    "Ask Every Time",
+    "https://requireclientcert.example.com/",
+    undefined,
+    true,
+    undefined,
+    // bug 1818556: ssltunnel doesn't behave as expected here on Windows
+    AppConstants.platform != "win"
+      ? "SSL_ERROR_RX_CERTIFICATE_REQUIRED_ALERT"
+      : undefined
+  );
+  cars.clearRememberedDecisions();
+});
+
+// Test that if the user chooses a certificate the connection suceeeds.
+add_task(async function testCertChosenByUser() {
+  gClientAuthDialogs.state = DialogState.RETURN_CERT_SELECTED;
+  await testHelper(
+    "Ask Every Time",
+    "https://requireclientcert.example.com/",
+    "https://requireclientcert.example.com/",
+    true
+  );
+  cars.clearRememberedDecisions();
+});
+
+// Test that the cancel decision is remembered correctly
+add_task(async function testEmptyCertChosenByUser() {
+  gClientAuthDialogs.state = DialogState.RETURN_CERT_NOT_SELECTED;
+  gClientAuthDialogs.rememberClientAuthCertificate = true;
+  await testHelper(
+    "Ask Every Time",
+    "https://requireclientcert.example.com/",
+    undefined,
+    true
+  );
+  await testHelper(
+    "Ask Every Time",
+    "https://requireclientcert.example.com/",
+    undefined,
+    false
+  );
+  cars.clearRememberedDecisions();
+});
+
+// Test that if the user chooses a certificate in a private browsing window,
+// configures Firefox to remember this certificate for the duration of the
+// session, closes that window (and thus all private windows), reopens a private
+// window, and visits that site again, they are re-asked for a certificate (i.e.
+// any state from the previous private session should be gone). Similarly, after
+// closing that private window, if the user opens a non-private window, they
+// again should be asked to choose a certificate (i.e. private state should not
+// be remembered/used in non-private contexts).
+add_task(async function testClearPrivateBrowsingState() {
+  gClientAuthDialogs.rememberClientAuthCertificate = true;
+  gClientAuthDialogs.state = DialogState.RETURN_CERT_SELECTED;
+  await testHelper(
+    "Ask Every Time",
+    "https://requireclientcert.example.com/",
+    "https://requireclientcert.example.com/",
+    true,
+    {
+      private: true,
+    }
+  );
+  await testHelper(
+    "Ask Every Time",
+    "https://requireclientcert.example.com/",
+    "https://requireclientcert.example.com/",
+    true,
+    {
+      private: true,
+    }
+  );
+  await testHelper(
+    "Ask Every Time",
+    "https://requireclientcert.example.com/",
+    "https://requireclientcert.example.com/",
+    true
+  );
+  // NB: we don't `cars.clearRememberedDecisions()` in between the two calls to
+  // `testHelper` because that would clear all client auth certificate state and
+  // obscure what we're testing (that Firefox properly clears the relevant state
+  // when the last private window closes).
+  cars.clearRememberedDecisions();
+});
+
+// Test that 3rd party certificates are taken into account when filtering client
+// certificates based on the acceptible CA list sent by the server.
+add_task(async function testCertFilteringWithIntermediate() {
+  let intermediateBytes = await IOUtils.readUTF8(
+    getTestFilePath("intermediate.pem")
+  ).then(
+    pem => {
+      let base64 = pemToBase64(pem);
+      let bin = atob(base64);
+      let bytes = [];
+      for (let i = 0; i < bin.length; i++) {
+        bytes.push(bin.charCodeAt(i));
+      }
+      return bytes;
+    },
+    error => {
+      throw error;
+    }
+  );
+  let nssComponent = Cc["@mozilla.org/psm;1"].getService(Ci.nsINSSComponent);
+  nssComponent.addEnterpriseIntermediate(intermediateBytes);
+  gExpectedClientCertificateChoices = 4;
+  gClientAuthDialogs.state = DialogState.RETURN_CERT_SELECTED;
+  await testHelper(
+    "Ask Every Time",
+    "https://requireclientcert.example.com/",
+    "https://requireclientcert.example.com/",
+    true
+  );
+  cars.clearRememberedDecisions();
+  // This will reset the added intermediate.
+  await SpecialPowers.pushPrefEnv({
+    set: [["security.enterprise_roots.enabled", true]],
+  });
+});
+
+// Test that if the server certificate does not validate successfully,
+// nsIClientAuthDialogs.chooseCertificate() is never called.
+add_task(async function testNoDialogForUntrustedServerCertificate() {
+  gClientAuthDialogs.state = DialogState.ASSERT_NOT_CALLED;
+  await testHelper(
+    "Ask Every Time",
+    "https://requireclientcert-untrusted.example.com/",
+    undefined,
+    false
+  );
+  // This clears all saved client auth certificate state so we don't influence
+  // subsequent tests.
+  cars.clearRememberedDecisions();
+});
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_speculative_connection.html b/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_speculative_connection.html
new file mode 100644
index 0000000000..82aac47b2a
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_speculative_connection.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<html>
+<body>
+<a href="https://requireclientcert.example.com" id="link">Click Me</a>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_speculative_connection.js b/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_speculative_connection.js
new file mode 100644
index 0000000000..aec0ec45aa
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_speculative_connection.js
@@ -0,0 +1,90 @@
+/* eslint-disable mozilla/no-arbitrary-setTimeout */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+// Tests that with speculative connections enabled, connections to servers that
+// request a client authentication certificate succeed (the specific bug that
+// was addressed with this patch involved navigation hanging because the
+// connection to the server couldn't make progress without asking for a client
+// authentication certificate, but it also wouldn't ask for a client
+// authentication certificate until the connection had been claimed, which
+// required that it make progress first).
+
+const { MockRegistrar } = ChromeUtils.importESModule(
+  "resource://testing-common/MockRegistrar.sys.mjs"
+);
+
+const TEST_PATH = getRootDirectory(gTestPath).replace(
+  "chrome://mochitests/content",
+  "https://example.com"
+);
+
+let chooseCertificateCalled = false;
+
+const clientAuthDialogs = {
+  chooseCertificate(
+    hostname,
+    port,
+    organization,
+    issuerOrg,
+    certList,
+    selectedIndex,
+    rememberClientAuthCertificate
+  ) {
+    is(certList.length, 1, "should have only one client certificate available");
+    selectedIndex.value = 0;
+    rememberClientAuthCertificate.value = false;
+    ok(
+      !chooseCertificateCalled,
+      "chooseCertificate should only be called once"
+    );
+    chooseCertificateCalled = true;
+    return true;
+  },
+
+  QueryInterface: ChromeUtils.generateQI(["nsIClientAuthDialogs"]),
+};
+
+add_setup(async function () {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      // Enable speculative connections.
+      ["network.http.speculative-parallel-limit", 6],
+      // Always ask to select a client authentication certificate.
+      ["security.default_personal_cert", "Ask Every Time"],
+    ],
+  });
+  let clientAuthDialogsCID = MockRegistrar.register(
+    "@mozilla.org/nsClientAuthDialogs;1",
+    clientAuthDialogs
+  );
+  registerCleanupFunction(async function () {
+    MockRegistrar.unregister(clientAuthDialogsCID);
+  });
+});
+
+add_task(
+  async function test_no_client_auth_selection_dialog_for_speculative_connections() {
+    await BrowserTestUtils.withNewTab(
+      `${TEST_PATH}browser_clientAuth_speculative_connection.html`,
+      async browser => {
+        // Click the link to navigate to a page that requests a client
+        // authentication certificate. Necko will make a speculative
+        // connection, but unfortunately there's no event or notification to
+        // observe. This test ensures that the navigation succeeds and that a
+        // client authentication certificate was requested.
+        let loaded = BrowserTestUtils.browserLoaded(
+          browser,
+          false,
+          "https://requireclientcert.example.com/"
+        );
+        await BrowserTestUtils.synthesizeMouseAtCenter("#link", {}, browser);
+        await loaded;
+        ok(chooseCertificateCalled, "chooseCertificate must have been called");
+      }
+    );
+  }
+);
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_ui.js b/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_ui.js
new file mode 100644
index 0000000000..516ba701ce
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_clientAuth_ui.js
@@ -0,0 +1,195 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+"use strict";
+
+// Tests that the client authentication certificate chooser correctly displays
+// provided information and correctly returns user input.
+
+const TEST_HOSTNAME = "Test Hostname";
+const TEST_ORG = "Test Org";
+const TEST_ISSUER_ORG = "Test Issuer Org";
+const TEST_PORT = 123;
+
+var certDB = Cc["@mozilla.org/security/x509certdb;1"].getService(
+  Ci.nsIX509CertDB
+);
+/**
+ * Test certificate (i.e. build/pgo/certs/mochitest.client).
+ *
+ * @type {nsIX509Cert}
+ */
+var cert;
+
+/**
+ * Opens the client auth cert chooser dialog.
+ *
+ * @param {nsIX509Cert} cert The cert to pass to the dialog for display.
+ * @returns {Promise}
+ *          A promise that resolves when the dialog has finished loading, with
+ *          an array consisting of:
+ *            1. The window of the opened dialog.
+ *            2. The return value nsIWritablePropertyBag2 passed to the dialog.
+ */
+function openClientAuthDialog(cert) {
+  let certList = Cc["@mozilla.org/array;1"].createInstance(Ci.nsIMutableArray);
+  certList.appendElement(cert);
+
+  let returnVals = Cc["@mozilla.org/hash-property-bag;1"].createInstance(
+    Ci.nsIWritablePropertyBag2
+  );
+  let win = window.openDialog(
+    "chrome://pippki/content/clientauthask.xhtml",
+    "",
+    "",
+    TEST_HOSTNAME,
+    TEST_ORG,
+    TEST_ISSUER_ORG,
+    TEST_PORT,
+    certList,
+    returnVals
+  );
+  return TestUtils.topicObserved("cert-dialog-loaded").then(() => [
+    win,
+    returnVals,
+  ]);
+}
+
+/**
+ * Checks that the contents of the given cert chooser dialog match the details
+ * of build/pgo/certs/mochitest.client.
+ *
+ * @param {window} win The cert chooser window.
+ * @param {string} notBefore
+ *        The formatted notBefore date of mochitest.client.
+ * @param {string} notAfter
+ *        The formatted notAfter date of mochitest.client.
+ */
+function checkDialogContents(win, notBefore, notAfter) {
+  is(
+    win.document.getElementById("hostname").textContent,
+    `${TEST_HOSTNAME}:${TEST_PORT}`,
+    "Actual and expected hostname and port should be equal"
+  );
+  is(
+    win.document.getElementById("organization").textContent,
+    `Organization: “${TEST_ORG}”`,
+    "Actual and expected organization should be equal"
+  );
+  is(
+    win.document.getElementById("issuer").textContent,
+    `Issued Under: “${TEST_ISSUER_ORG}”`,
+    "Actual and expected issuer organization should be equal"
+  );
+
+  is(
+    win.document.getElementById("nicknames").label,
+    "Mochitest client [03]",
+    "Actual and expected selected cert nickname and serial should be equal"
+  );
+  is(
+    win.document.getElementById("nicknames").itemCount,
+    1,
+    "correct number of items"
+  );
+
+  let [subject, serialNum, validity, issuer, tokenName] = win.document
+    .getElementById("details")
+    .value.split("\n");
+  is(
+    subject,
+    "Issued to: CN=Mochitest client",
+    "Actual and expected subject should be equal"
+  );
+  is(
+    serialNum,
+    "Serial number: 03",
+    "Actual and expected serial number should be equal"
+  );
+  is(
+    validity,
+    `Valid from ${notBefore} to ${notAfter}`,
+    "Actual and expected validity should be equal"
+  );
+  is(
+    issuer,
+    "Issued by: OU=Profile Guided Optimization,O=Mozilla Testing,CN=Temporary Certificate Authority",
+    "Actual and expected issuer should be equal"
+  );
+  is(
+    tokenName,
+    "Stored on: Software Security Device",
+    "Actual and expected token name should be equal"
+  );
+}
+
+function findCertByCommonName(commonName) {
+  for (let cert of certDB.getCerts()) {
+    if (cert.commonName == commonName) {
+      return cert;
+    }
+  }
+  return null;
+}
+
+add_setup(async function () {
+  cert = findCertByCommonName("Mochitest client");
+  isnot(cert, null, "Should be able to find the test client cert");
+});
+
+// Test that the contents of the dialog correspond to the details of the
+// provided cert.
+add_task(async function testContents() {
+  const formatter = new Intl.DateTimeFormat(undefined, {
+    dateStyle: "medium",
+    timeStyle: "long",
+  });
+  let [win] = await openClientAuthDialog(cert);
+  checkDialogContents(
+    win,
+    formatter.format(new Date(cert.validity.notBefore / 1000)),
+    formatter.format(new Date(cert.validity.notAfter / 1000))
+  );
+  await BrowserTestUtils.closeWindow(win);
+});
+
+// Test that the right values are returned when the dialog is accepted.
+add_task(async function testAcceptDialogReturnValues() {
+  let [win, retVals] = await openClientAuthDialog(cert);
+  win.document.getElementById("rememberBox").checked = true;
+  info("Accepting dialog");
+  win.document.getElementById("certAuthAsk").acceptDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  ok(
+    retVals.get("certChosen"),
+    "Return value should signal user chose a certificate"
+  );
+  is(
+    retVals.get("selectedIndex"),
+    0,
+    "0 should be returned as the selected index"
+  );
+  ok(
+    retVals.get("rememberSelection"),
+    "Return value should signal 'Remember this decision' checkbox was checked"
+  );
+});
+
+// Test that the right values are returned when the dialog is canceled.
+add_task(async function testCancelDialogReturnValues() {
+  let [win, retVals] = await openClientAuthDialog(cert);
+  win.document.getElementById("rememberBox").checked = false;
+  info("Canceling dialog");
+  win.document.getElementById("certAuthAsk").cancelDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  ok(
+    !retVals.get("certChosen"),
+    "Return value should signal user did not choose a certificate"
+  );
+  ok(
+    !retVals.get("rememberSelection"),
+    "Return value should signal 'Remember this decision' checkbox was unchecked"
+  );
+});
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_deleteCert_ui.js b/security/manager/ssl/tests/mochitest/browser/browser_deleteCert_ui.js
new file mode 100644
index 0000000000..a8ff7cc8fb
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_deleteCert_ui.js
@@ -0,0 +1,259 @@
+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+"use strict";
+
+// Tests various aspects of the cert delete confirmation dialog.
+// Among other things, tests that for each type of cert that can be deleted:
+// 1. The various lines of explanation text are correctly set.
+// 2. The implementation correctly falls back through multiple cert attributes
+//    to determine what to display to represent a cert.
+
+/**
+ * An array of tree items corresponding to TEST_CASES.
+ *
+ * @type {nsICertTreeItem[]}
+ */
+var gCertArray = [];
+
+const FAKE_HOST_PORT = "Fake host and port";
+
+/**
+ * @typedef TestCase
+ * @type {object}
+ * @property {string} certFilename
+ *           Filename of the cert, or null if we don't want to import a cert for
+ *           this test case (i.e. we expect the hostPort attribute of
+ *           nsICertTreeItem to be used).
+ * @property {string} expectedDisplayString
+ *           The string we expect the UI to display to represent the given cert.
+ * @property {string} expectedSerialNumber
+ *           The serial number we expect the UI to display if it exists.
+ */
+
+/**
+ * A list of test cases representing certs that get "deleted".
+ *
+ * @type {TestCase[]}
+ */
+const TEST_CASES = [
+  {
+    certFilename: null,
+    expectedDisplayString: FAKE_HOST_PORT,
+    expectedSerialNumber: null,
+  },
+  {
+    certFilename: "has-cn.pem",
+    expectedDisplayString: "Foo",
+    expectedSerialNumber: null,
+  },
+  {
+    certFilename: "has-ou.pem",
+    expectedDisplayString: "Bar",
+    expectedSerialNumber: null,
+  },
+  {
+    certFilename: "has-o.pem",
+    expectedDisplayString: "Baz",
+    expectedSerialNumber: null,
+  },
+  {
+    certFilename: "has-non-empty-subject.pem",
+    expectedDisplayString: "C=US",
+    expectedSerialNumber: null,
+  },
+  {
+    certFilename: "has-empty-subject.pem",
+    expectedDisplayString: "Certificate with serial number: 0A",
+    expectedSerialNumber: "0A",
+  },
+];
+
+/**
+ * Opens the cert delete confirmation dialog.
+ *
+ * @param {string} tabID
+ *        The ID of the cert category tab the certs to delete belong to.
+ * @returns {Promise}
+ *          A promise that resolves when the dialog has finished loading, with
+ *          an array consisting of:
+ *            1. The window of the opened dialog.
+ *            2. The return value object passed to the dialog.
+ */
+function openDeleteCertConfirmDialog(tabID) {
+  let retVals = {
+    deleteConfirmed: false,
+  };
+  let win = window.openDialog(
+    "chrome://pippki/content/deletecert.xhtml",
+    "",
+    "",
+    tabID,
+    gCertArray,
+    retVals
+  );
+  return new Promise((resolve, reject) => {
+    win.addEventListener(
+      "load",
+      function () {
+        executeSoon(() => resolve([win, retVals]));
+      },
+      { once: true }
+    );
+  });
+}
+
+add_setup(async function () {
+  for (let testCase of TEST_CASES) {
+    let cert = null;
+    if (testCase.certFilename) {
+      cert = await readCertificate(testCase.certFilename, ",,");
+    }
+    let certTreeItem = {
+      hostPort: FAKE_HOST_PORT,
+      cert,
+      QueryInterface: ChromeUtils.generateQI(["nsICertTreeItem"]),
+    };
+    gCertArray.push(certTreeItem);
+  }
+});
+
+/**
+ * Test helper for the below test cases.
+ *
+ * @param {string} tabID
+ *        ID of the cert category tab the certs to delete belong to.
+ * @param {string} expectedTitleL10nId
+ *        The L10nId of title the dialog is expected to have.
+ * @param {string} expectedConfirmL10nId
+ *        The l10n id of confirmation message the dialog expected to show.
+ * @param {string} expectedImpactL10nId
+ *        The l10n id of impact the dialog expected to show.
+ */
+async function testHelper(
+  tabID,
+  expectedTitleL10nId,
+  expectedConfirmL10nId,
+  expectedImpactL10nId
+) {
+  let [win] = await openDeleteCertConfirmDialog(tabID);
+  let certList = win.document.getElementById("certlist");
+
+  Assert.deepEqual(
+    win.document.l10n.getAttributes(win.document.documentElement),
+    expectedTitleL10nId,
+    `Actual and expected titles should match for ${tabID}`
+  );
+  let confirm = win.document.getElementById("confirm");
+  Assert.deepEqual(
+    win.document.l10n.getAttributes(confirm),
+    expectedConfirmL10nId,
+    `Actual and expected confirm message should match for ${tabID}`
+  );
+  let impact = win.document.getElementById("impact");
+  Assert.deepEqual(
+    win.document.l10n.getAttributes(impact),
+    expectedImpactL10nId,
+    `Actual and expected impact should match for ${tabID}`
+  );
+
+  Assert.equal(
+    certList.itemCount,
+    TEST_CASES.length,
+    `No. of certs displayed should match for ${tabID}`
+  );
+  for (let i = 0; i < certList.itemCount; i++) {
+    let item = certList.getItemAtIndex(i);
+    if (TEST_CASES[i].expectedSerialNumber == null) {
+      Assert.equal(
+        item.label,
+        TEST_CASES[i].expectedDisplayString,
+        "Actual and expected display string should match for " +
+          `index ${i} for ${tabID}`
+      );
+    } else {
+      Assert.deepEqual(
+        win.document.l10n.getAttributes(item.children[0]),
+        {
+          id: "cert-with-serial",
+          args: { serialNumber: TEST_CASES[i].expectedSerialNumber },
+        },
+        "Actual and expected display string should match for " +
+          `index ${i} for ${tabID}`
+      );
+    }
+  }
+
+  await BrowserTestUtils.closeWindow(win);
+}
+
+// Test deleting certs from the "Your Certificates" tab.
+add_task(async function testDeletePersonalCerts() {
+  const expectedTitleL10nId = { id: "delete-user-cert-title", args: null };
+  const expectedConfirmL10nId = { id: "delete-user-cert-confirm", args: null };
+  const expectedImpactL10nId = { id: "delete-user-cert-impact", args: null };
+  await testHelper(
+    "mine_tab",
+    expectedTitleL10nId,
+    expectedConfirmL10nId,
+    expectedImpactL10nId
+  );
+});
+
+// Test deleting certs from the "People" tab.
+add_task(async function testDeleteOtherPeopleCerts() {
+  const expectedTitleL10nId = { id: "delete-email-cert-title", args: null };
+  // ’ doesn't seem to work when embedded in the following literals, which is
+  // why escape codes are used instead.
+  const expectedConfirmL10nId = { id: "delete-email-cert-confirm", args: null };
+  const expectedImpactL10nId = { id: "delete-email-cert-impact", args: null };
+  await testHelper(
+    "others_tab",
+    expectedTitleL10nId,
+    expectedConfirmL10nId,
+    expectedImpactL10nId
+  );
+});
+
+// Test deleting certs from the "Authorities" tab.
+add_task(async function testDeleteCACerts() {
+  const expectedTitleL10nId = { id: "delete-ca-cert-title", args: null };
+  const expectedConfirmL10nId = { id: "delete-ca-cert-confirm", args: null };
+  const expectedImpactL10nId = { id: "delete-ca-cert-impact", args: null };
+  await testHelper(
+    "ca_tab",
+    expectedTitleL10nId,
+    expectedConfirmL10nId,
+    expectedImpactL10nId
+  );
+});
+
+// Test that the right values are returned when the dialog is accepted.
+add_task(async function testAcceptDialogReturnValues() {
+  let [win, retVals] = await openDeleteCertConfirmDialog(
+    "ca_tab" /* arbitrary */
+  );
+  info("Accepting dialog");
+  win.document.getElementById("deleteCertificate").acceptDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  Assert.ok(
+    retVals.deleteConfirmed,
+    "Return value should signal user accepted"
+  );
+});
+
+// Test that the right values are returned when the dialog is canceled.
+add_task(async function testCancelDialogReturnValues() {
+  let [win, retVals] = await openDeleteCertConfirmDialog(
+    "ca_tab" /* arbitrary */
+  );
+  info("Canceling dialog");
+  win.document.getElementById("deleteCertificate").cancelDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  Assert.ok(
+    !retVals.deleteConfirmed,
+    "Return value should signal user did not accept"
+  );
+});
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_downloadCert_ui.js b/security/manager/ssl/tests/mochitest/browser/browser_downloadCert_ui.js
new file mode 100644
index 0000000000..51715b1352
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_downloadCert_ui.js
@@ -0,0 +1,134 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+"use strict";
+
+// Tests that the cert download/import UI correctly identifies the cert being
+// downloaded, and allows the trust of the cert to be specified.
+
+const { MockRegistrar } = ChromeUtils.importESModule(
+  "resource://testing-common/MockRegistrar.sys.mjs"
+);
+
+/**
+ * @typedef TestCase
+ * @type {object}
+ * @property {string} certFilename
+ *           Filename of the cert for this test case.
+ * @property {string} expectedDisplayString
+ *           The string we expect the UI to display to represent the given cert.
+ * @property {nsIX509Cert} cert
+ *           Handle to the cert once read in setup().
+ */
+
+/**
+ * A list of test cases representing certs that get "downloaded".
+ *
+ * @type {TestCase[]}
+ */
+const TEST_CASES = [
+  { certFilename: "has-cn.pem", expectedDisplayString: "Foo", cert: null },
+  {
+    certFilename: "has-empty-subject.pem",
+    expectedDisplayString: "Certificate Authority (unnamed)",
+    cert: null,
+  },
+];
+
+/**
+ * Opens the cert download dialog.
+ *
+ * @param {nsIX509Cert} cert
+ *        The cert to pass to the dialog for display.
+ * @returns {Promise}
+ *          A promise that resolves when the dialog has finished loading, with
+ *          an array consisting of:
+ *            1. The window of the opened dialog.
+ *            2. The return value nsIWritablePropertyBag2 passed to the dialog.
+ */
+function openCertDownloadDialog(cert) {
+  let returnVals = Cc["@mozilla.org/hash-property-bag;1"].createInstance(
+    Ci.nsIWritablePropertyBag2
+  );
+  let win = window.openDialog(
+    "chrome://pippki/content/downloadcert.xhtml",
+    "",
+    "",
+    cert,
+    returnVals
+  );
+  return new Promise((resolve, reject) => {
+    win.addEventListener(
+      "load",
+      function () {
+        executeSoon(() => resolve([win, returnVals]));
+      },
+      { once: true }
+    );
+  });
+}
+
+add_setup(async function () {
+  for (let testCase of TEST_CASES) {
+    testCase.cert = await readCertificate(testCase.certFilename, ",,");
+    Assert.notEqual(
+      testCase.cert,
+      null,
+      `'${testCase.certFilename}' should have been read`
+    );
+  }
+});
+
+// Test that the trust header message corresponds to the provided cert, and that
+// the View Cert button launches the cert viewer for the provided cert.
+add_task(async function testTrustHeaderAndViewCertButton() {
+  for (let testCase of TEST_CASES) {
+    let [win] = await openCertDownloadDialog(testCase.cert);
+    let expectedTrustHeaderString =
+      `Do you want to trust \u201C${testCase.expectedDisplayString}\u201D ` +
+      "for the following purposes?";
+    Assert.equal(
+      win.document.getElementById("trustHeader").textContent,
+      expectedTrustHeaderString,
+      "Actual and expected trust header text should match for " +
+        `${testCase.certFilename}`
+    );
+
+    await BrowserTestUtils.closeWindow(win);
+  }
+});
+
+// Test that the right values are returned when the dialog is accepted.
+add_task(async function testAcceptDialogReturnValues() {
+  let [win, retVals] = await openCertDownloadDialog(TEST_CASES[0].cert);
+  win.document.getElementById("trustSSL").checked = true;
+  win.document.getElementById("trustEmail").checked = false;
+  info("Accepting dialog");
+  win.document.getElementById("download_cert").acceptDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  Assert.ok(
+    retVals.get("importConfirmed"),
+    "Return value should signal user chose to import the cert"
+  );
+  Assert.ok(
+    retVals.get("trustForSSL"),
+    "Return value should signal SSL trust checkbox was checked"
+  );
+  Assert.ok(
+    !retVals.get("trustForEmail"),
+    "Return value should signal E-mail trust checkbox was unchecked"
+  );
+});
+
+// Test that the right values are returned when the dialog is canceled.
+add_task(async function testCancelDialogReturnValues() {
+  let [win, retVals] = await openCertDownloadDialog(TEST_CASES[0].cert);
+  info("Canceling dialog");
+  win.document.getElementById("download_cert").cancelDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  Assert.ok(
+    !retVals.get("importConfirmed"),
+    "Return value should signal user chose not to import the cert"
+  );
+});
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_editCACertTrust.js b/security/manager/ssl/tests/mochitest/browser/browser_editCACertTrust.js
new file mode 100644
index 0000000000..9a36eca7bf
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_editCACertTrust.js
@@ -0,0 +1,141 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+"use strict";
+
+// Tests that the UI for editing the trust of a CA certificate correctly
+// reflects trust in the cert DB, and correctly updates trust in the cert DB
+// when requested.
+
+var gCertDB = Cc["@mozilla.org/security/x509certdb;1"].getService(
+  Ci.nsIX509CertDB
+);
+
+/**
+ * The cert we're editing the trust of.
+ *
+ * @type {nsIX509Cert}
+ */
+var gCert;
+
+/**
+ * Opens the cert trust editing dialog.
+ *
+ * @returns {Promise}
+ *          A promise that resolves when the dialog has finished loading with
+ *          the window of the opened dialog.
+ */
+function openEditCertTrustDialog() {
+  let win = window.openDialog(
+    "chrome://pippki/content/editcacert.xhtml",
+    "",
+    "",
+    gCert
+  );
+  return new Promise((resolve, reject) => {
+    win.addEventListener(
+      "load",
+      function () {
+        executeSoon(() => resolve(win));
+      },
+      { once: true }
+    );
+  });
+}
+
+add_setup(async function () {
+  // Initially trust ca.pem for SSL but not e-mail.
+  gCert = await readCertificate("ca.pem", "CT,,");
+  Assert.ok(
+    gCertDB.isCertTrusted(
+      gCert,
+      Ci.nsIX509Cert.CA_CERT,
+      Ci.nsIX509CertDB.TRUSTED_SSL
+    ),
+    "Sanity check: ca.pem should be trusted for SSL"
+  );
+  Assert.ok(
+    !gCertDB.isCertTrusted(
+      gCert,
+      Ci.nsIX509Cert.CA_CERT,
+      Ci.nsIX509CertDB.TRUSTED_EMAIL
+    ),
+    "Sanity check: ca.pem should not be trusted for e-mail"
+  );
+});
+
+// Tests the following:
+// 1. The checkboxes correctly reflect the trust set in setup().
+// 2. Accepting the dialog after flipping some of the checkboxes results in the
+//    correct trust being set in the cert DB.
+add_task(async function testAcceptDialog() {
+  let win = await openEditCertTrustDialog();
+
+  let sslCheckbox = win.document.getElementById("trustSSL");
+  let emailCheckbox = win.document.getElementById("trustEmail");
+  Assert.ok(sslCheckbox.checked, "Cert should be trusted for SSL in UI");
+  Assert.ok(
+    !emailCheckbox.checked,
+    "Cert should not be trusted for e-mail in UI"
+  );
+
+  sslCheckbox.checked = false;
+  emailCheckbox.checked = true;
+
+  info("Accepting dialog");
+  win.document.getElementById("editCaCert").acceptDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  Assert.ok(
+    !gCertDB.isCertTrusted(
+      gCert,
+      Ci.nsIX509Cert.CA_CERT,
+      Ci.nsIX509CertDB.TRUSTED_SSL
+    ),
+    "Cert should no longer be trusted for SSL"
+  );
+  Assert.ok(
+    gCertDB.isCertTrusted(
+      gCert,
+      Ci.nsIX509Cert.CA_CERT,
+      Ci.nsIX509CertDB.TRUSTED_EMAIL
+    ),
+    "Cert should now be trusted for e-mail"
+  );
+});
+
+// Tests the following:
+// 1. The checkboxes correctly reflect the trust set in testAcceptDialog().
+// 2. Canceling the dialog even after flipping the checkboxes doesn't result in
+//    a change of trust in the cert DB.
+add_task(async function testCancelDialog() {
+  let win = await openEditCertTrustDialog();
+
+  let sslCheckbox = win.document.getElementById("trustSSL");
+  let emailCheckbox = win.document.getElementById("trustEmail");
+  Assert.ok(!sslCheckbox.checked, "Cert should not be trusted for SSL in UI");
+  Assert.ok(emailCheckbox.checked, "Cert should be trusted for e-mail in UI");
+
+  sslCheckbox.checked = true;
+  emailCheckbox.checked = false;
+
+  info("Canceling dialog");
+  win.document.getElementById("editCaCert").cancelDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  Assert.ok(
+    !gCertDB.isCertTrusted(
+      gCert,
+      Ci.nsIX509Cert.CA_CERT,
+      Ci.nsIX509CertDB.TRUSTED_SSL
+    ),
+    "Cert should still not be trusted for SSL"
+  );
+  Assert.ok(
+    gCertDB.isCertTrusted(
+      gCert,
+      Ci.nsIX509Cert.CA_CERT,
+      Ci.nsIX509CertDB.TRUSTED_EMAIL
+    ),
+    "Cert should still be trusted for e-mail"
+  );
+});
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_exportP12_passwordUI.js b/security/manager/ssl/tests/mochitest/browser/browser_exportP12_passwordUI.js
new file mode 100644
index 0000000000..8e6af27cbb
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_exportP12_passwordUI.js
@@ -0,0 +1,164 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+"use strict";
+
+// Tests that the UI for setting the password on a to be exported PKCS #12 file:
+//   1. Correctly requires the password to be typed in twice as confirmation.
+//   2. Calculates and displays the strength of said password.
+
+/**
+ * @typedef TestCase
+ * @type {object}
+ * @property {string} name
+ *           The name of the test case for display purposes.
+ * @property {string} password1
+ *           The password to enter into the first password textbox.
+ * @property {string} password2
+ *           The password to enter into the second password textbox.
+ * @property {string} strength
+ *           The expected strength of the password in the range [0, 100].
+ */
+
+/**
+ * A list of test cases representing various inputs to the password textboxes.
+ *
+ * @type {TestCase[]}
+ */
+const TEST_CASES = [
+  { name: "empty", password1: "", password2: "", strength: "0" },
+  { name: "match-weak", password1: "foo", password2: "foo", strength: "10" },
+  {
+    name: "match-medium",
+    password1: "foo123",
+    password2: "foo123",
+    strength: "60",
+  },
+  {
+    name: "match-strong",
+    password1: "fooBARBAZ 1234567890`~!@#$%^&*()-_=+{[}]|\\:;'\",<.>/?一二三",
+    password2: "fooBARBAZ 1234567890`~!@#$%^&*()-_=+{[}]|\\:;'\",<.>/?一二三",
+    strength: "100",
+  },
+  { name: "mismatch-weak", password1: "foo", password2: "bar", strength: "10" },
+  {
+    name: "mismatch-medium",
+    password1: "foo123",
+    password2: "bar",
+    strength: "60",
+  },
+  {
+    name: "mismatch-strong",
+    password1: "fooBARBAZ 1234567890`~!@#$%^&*()-_=+{[}]|\\:;'\",<.>/?一二三",
+    password2: "bar",
+    strength: "100",
+  },
+];
+
+/**
+ * Opens the dialog shown to set the password on a PKCS #12 file being exported.
+ *
+ * @returns {Promise}
+ *          A promise that resolves when the dialog has finished loading, with
+ *          an array consisting of:
+ *            1. The window of the opened dialog.
+ *            2. The return value nsIWritablePropertyBag2 passed to the dialog.
+ */
+function openSetP12PasswordDialog() {
+  let returnVals = Cc["@mozilla.org/hash-property-bag;1"].createInstance(
+    Ci.nsIWritablePropertyBag2
+  );
+  let win = window.openDialog(
+    "chrome://pippki/content/setp12password.xhtml",
+    "",
+    "",
+    returnVals
+  );
+  return new Promise((resolve, reject) => {
+    win.addEventListener(
+      "load",
+      function () {
+        executeSoon(() => resolve([win, returnVals]));
+      },
+      { once: true }
+    );
+  });
+}
+
+// Tests that the first password textbox is the element that is initially
+// focused.
+add_task(async function testFocus() {
+  let [win] = await openSetP12PasswordDialog();
+  Assert.equal(
+    win.document.activeElement,
+    win.document.getElementById("pw1"),
+    "First password textbox should have focus"
+  );
+  await BrowserTestUtils.closeWindow(win);
+});
+
+// Tests that the password strength algorithm used is reasonable, and that the
+// Accept button is only enabled if the two passwords match.
+add_task(async function testPasswordStrengthAndEquality() {
+  let [win] = await openSetP12PasswordDialog();
+  let password1Textbox = win.document.getElementById("pw1");
+  let password2Textbox = win.document.getElementById("pw2");
+  let strengthProgressBar = win.document.getElementById("pwmeter");
+
+  for (let testCase of TEST_CASES) {
+    password1Textbox.value = testCase.password1;
+    password2Textbox.value = testCase.password2;
+    // Setting the value of the password textboxes via |.value| apparently
+    // doesn't cause the oninput handlers to be called, so we do it here.
+    password1Textbox.oninput();
+    password2Textbox.oninput();
+
+    Assert.equal(
+      win.document.getElementById("setp12password").getButton("accept")
+        .disabled,
+      password1Textbox.value != password2Textbox.value,
+      "Actual and expected accept button disable state should " +
+        `match for ${testCase.name}`
+    );
+    Assert.equal(
+      strengthProgressBar.value,
+      testCase.strength,
+      `Actual and expected strength value should match for ${testCase.name}`
+    );
+  }
+
+  await BrowserTestUtils.closeWindow(win);
+});
+
+// Test that the right values are returned when the dialog is accepted.
+add_task(async function testAcceptDialogReturnValues() {
+  let [win, retVals] = await openSetP12PasswordDialog();
+  const password = "fooBAR 1234567890`~!@#$%^&*()-_=+{[}]|\\:;'\",<.>/?一二三";
+  win.document.getElementById("pw1").value = password;
+  win.document.getElementById("pw2").value = password;
+  info("Accepting dialog");
+  win.document.getElementById("setp12password").acceptDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  Assert.ok(
+    retVals.get("confirmedPassword"),
+    "Return value should signal user confirmed a password"
+  );
+  Assert.equal(
+    retVals.get("password"),
+    password,
+    "Actual and expected password should match"
+  );
+});
+
+// Test that the right values are returned when the dialog is canceled.
+add_task(async function testCancelDialogReturnValues() {
+  let [win, retVals] = await openSetP12PasswordDialog();
+  info("Canceling dialog");
+  win.document.getElementById("setp12password").cancelDialog();
+  await BrowserTestUtils.windowClosed(win);
+
+  Assert.ok(
+    !retVals.get("confirmedPassword"),
+    "Return value should signal user didn't confirm a password"
+  );
+});
diff --git a/security/manager/ssl/tests/mochitest/browser/browser_loadPKCS11Module_ui.js b/security/manager/ssl/tests/mochitest/browser/browser_loadPKCS11Module_ui.js
new file mode 100644
index 0000000000..9e4e244123
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/browser_loadPKCS11Module_ui.js
@@ -0,0 +1,312 @@
+// Any copyright is dedicated to the Public Domain.
+// http://creativecommons.org/publicdomain/zero/1.0/
+"use strict";
+
+// Tests the dialog used for loading PKCS #11 modules.
+
+const { MockRegistrar } = ChromeUtils.importESModule(
+  "resource://testing-common/MockRegistrar.sys.mjs"
+);
+
+const gMockPKCS11ModuleDB = {
+  addModuleCallCount: 0,
+  expectedLibPath: "",
+  expectedModuleName: "",
+  throwOnAddModule: false,
+
+  addModule(moduleName, libraryFullPath, cryptoMechanismFlags, cipherFlags) {
+    this.addModuleCallCount++;
+    Assert.equal(
+      moduleName,
+      this.expectedModuleName,
+      "addModule: Name given should be what's in the name textbox"
+    );
+    Assert.equal(
+      libraryFullPath,
+      this.expectedLibPath,
+      "addModule: Path given should be what's in the path textbox"
+    );
+    Assert.equal(
+      cryptoMechanismFlags,
+      0,
+      "addModule: No crypto mechanism flags should be passed"
+    );
+    Assert.equal(cipherFlags, 0, "addModule: No cipher flags should be passed");
+
+    if (this.throwOnAddModule) {
+      throw new Error(`addModule: Throwing exception`);
+    }
+  },
+
+  deleteModule(moduleName) {
+    Assert.ok(false, `deleteModule: should not be called`);
+  },
+
+  getInternal() {
+    throw new Error("not expecting getInternal() to be called");
+  },
+
+  getInternalFIPS() {
+    throw new Error("not expecting getInternalFIPS() to be called");
+  },
+
+  listModules() {
+    throw new Error("not expecting listModules() to be called");
+  },
+
+  get canToggleFIPS() {
+    throw new Error("not expecting get canToggleFIPS() to be called");
+  },
+
+  toggleFIPSMode() {
+    throw new Error("not expecting toggleFIPSMode() to be called");
+  },
+
+  get isFIPSEnabled() {
+    throw new Error("not expecting get isFIPSEnabled() to be called");
+  },
+
+  QueryInterface: ChromeUtils.generateQI(["nsIPKCS11ModuleDB"]),
+};
+
+const gMockPromptService = {
+  alertCallCount: 0,
+  expectedText: "",
+  expectedWindow: null,
+
+  alert(parent, dialogTitle, text) {
+    this.alertCallCount++;
+    Assert.equal(
+      parent,
+      this.expectedWindow,
+      "alert: Parent should be expected window"
+    );
+    Assert.equal(dialogTitle, null, "alert: Title should be null");
+    Assert.equal(
+      text,
+      this.expectedText,
+      "alert: Actual and expected text should match"
+    );
+  },
+
+  QueryInterface: ChromeUtils.generateQI(["nsIPromptService"]),
+};
+
+var gMockPKCS11CID = MockRegistrar.register(
+  "@mozilla.org/security/pkcs11moduledb;1",
+  gMockPKCS11ModuleDB
+);
+var gMockPromptServiceCID = MockRegistrar.register(
+  "@mozilla.org/prompter;1",
+  gMockPromptService
+);
+
+var gMockFilePicker = SpecialPowers.MockFilePicker;
+gMockFilePicker.init(window);
+
+var gTempFile = Services.dirsvc.get("TmpD", Ci.nsIFile);
+gTempFile.append("browser_loadPKCS11Module_ui-fakeModule");
+
+registerCleanupFunction(() => {
+  gMockFilePicker.cleanup();
+  MockRegistrar.unregister(gMockPKCS11CID);
+  MockRegistrar.unregister(gMockPromptServiceCID);
+});
+
+function resetCallCounts() {
+  gMockPKCS11ModuleDB.addModuleCallCount = 0;
+  gMockPromptService.alertCallCount = 0;
+}
+
+/**
+ * Opens the dialog shown to load a PKCS #11 module.
+ *
+ * @returns {Promise}
+ *          A promise that resolves when the dialog has finished loading, with
+ *          the window of the opened dialog.
+ */
+function openLoadModuleDialog() {
+  let win = window.openDialog(
+    "chrome://pippki/content/load_device.xhtml",
+    "",
+    ""
+  );
+  return new Promise(resolve => {
+    win.addEventListener(
+      "load",
+      function () {
+        executeSoon(() => resolve(win));
+      },
+      { once: true }
+    );
+  });
+}
+
+/**
+ * Presses the browse button and simulates interacting with the file picker that
+ * should be triggered.
+ *
+ * @param {window} win
+ *        The dialog window.
+ * @param {boolean} cancel
+ *        If true, the file picker is canceled. If false, gTempFile is chosen in
+ *        the file picker and the file picker is accepted.
+ */
+async function browseToTempFile(win, cancel) {
+  gMockFilePicker.showCallback = () => {
+    gMockFilePicker.setFiles([gTempFile]);
+
+    if (cancel) {
+      info("MockFilePicker returning cancel");
+      return Ci.nsIFilePicker.returnCancel;
+    }
+
+    info("MockFilePicker returning OK");
+    return Ci.nsIFilePicker.returnOK;
+  };
+
+  info("Pressing browse button");
+  win.document.getElementById("browse").doCommand();
+  await TestUtils.topicObserved("LoadPKCS11Module:FilePickHandled");
+}
+
+add_task(async function testBrowseButton() {
+  let win = await openLoadModuleDialog();
+  let pathBox = win.document.getElementById("device_path");
+  let originalPathBoxValue = "expected path if picker is canceled";
+  pathBox.value = originalPathBoxValue;
+
+  // Test what happens if the file picker is canceled.
+  await browseToTempFile(win, true);
+  Assert.equal(
+    pathBox.value,
+    originalPathBoxValue,
+    "Path shown should be unchanged due to canceled picker"
+  );
+
+  // Test what happens if the file picker is not canceled.
+  await browseToTempFile(win, false);
+  Assert.equal(
+    pathBox.value,
+    gTempFile.path,
+    "Path shown should be same as the one chosen in the file picker"
+  );
+
+  await BrowserTestUtils.closeWindow(win);
+});
+
+function testAddModuleHelper(win, throwOnAddModule) {
+  resetCallCounts();
+  gMockPKCS11ModuleDB.expectedLibPath = gTempFile.path;
+  gMockPKCS11ModuleDB.expectedModuleName = "test module";
+  gMockPKCS11ModuleDB.throwOnAddModule = throwOnAddModule;
+
+  win.document.getElementById("device_name").value =
+    gMockPKCS11ModuleDB.expectedModuleName;
+  win.document.getElementById("device_path").value =
+    gMockPKCS11ModuleDB.expectedLibPath;
+
+  info("Accepting dialog");
+  win.document.getElementById("loaddevice").acceptDialog();
+}
+
+add_task(async function testAddModuleSuccess() {
+  let win = await openLoadModuleDialog();
+
+  testAddModuleHelper(win, false);
+  await BrowserTestUtils.windowClosed(win);
+
+  Assert.equal(
+    gMockPKCS11ModuleDB.addModuleCallCount,
+    1,
+    "addModule() should have been called once"
+  );
+  Assert.equal(
+    gMockPromptService.alertCallCount,
+    0,
+    "alert() should never have been called"
+  );
+});
+
+add_task(async function testAddModuleFailure() {
+  let win = await openLoadModuleDialog();
+  gMockPromptService.expectedText = "Unable to add module";
+  gMockPromptService.expectedWindow = win;
+
+  // The exception we throw in addModule is first reported as an uncaught
+  // exception by XPConnect before an exception is propagated to the actual
+  // caller.
+  expectUncaughtException(true);
+
+  testAddModuleHelper(win, true);
+  expectUncaughtException(false);
+  // If adding a module fails, the dialog will not close. As such, we have to
+  // close the window ourselves.
+  await BrowserTestUtils.closeWindow(win);
+
+  Assert.equal(
+    gMockPKCS11ModuleDB.addModuleCallCount,
+    1,
+    "addModule() should have been called once"
+  );
+  Assert.equal(
+    gMockPromptService.alertCallCount,
+    1,
+    "alert() should have been called once"
+  );
+});
+
+add_task(async function testCancel() {
+  let win = await openLoadModuleDialog();
+  resetCallCounts();
+
+  info("Canceling dialog");
+  win.document.getElementById("loaddevice").cancelDialog();
+
+  Assert.equal(
+    gMockPKCS11ModuleDB.addModuleCallCount,
+    0,
+    "addModule() should never have been called"
+  );
+  Assert.equal(
+    gMockPromptService.alertCallCount,
+    0,
+    "alert() should never have been called"
+  );
+
+  await BrowserTestUtils.windowClosed(win);
+});
+
+async function testModuleNameHelper(moduleName, acceptButtonShouldBeDisabled) {
+  let win = await openLoadModuleDialog();
+  resetCallCounts();
+
+  info(`Setting Module Name to '${moduleName}'`);
+  let moduleNameBox = win.document.getElementById("device_name");
+  moduleNameBox.value = moduleName;
+  // this makes this not a great test, but it's the easiest way to simulate this
+  moduleNameBox.onchange();
+
+  let dialogNode = win.document.querySelector("dialog");
+  Assert.equal(
+    dialogNode.getAttribute("buttondisabledaccept"),
+    acceptButtonShouldBeDisabled ? "true" : "", // it's a string
+    `dialog accept button should ${
+      acceptButtonShouldBeDisabled ? "" : "not "
+    }be disabled`
+  );
+
+  return BrowserTestUtils.closeWindow(win);
+}
+
+add_task(async function testEmptyModuleName() {
+  await testModuleNameHelper("", true);
+});
+
+add_task(async function testReservedModuleName() {
+  await testModuleNameHelper("Root Certs", true);
+});
+
+add_task(async function testAcceptableModuleName() {
+  await testModuleNameHelper("Some Module Name", false);
+});
diff --git a/security/manager/ssl/tests/mochitest/browser/ca.pem b/security/manager/ssl/tests/mochitest/browser/ca.pem
new file mode 100644
index 0000000000..91233a79dd
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/ca.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/ca.pem.certspec b/security/manager/ssl/tests/mochitest/browser/ca.pem.certspec
new file mode 100644
index 0000000000..6660f5d478
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/ca.pem.certspec
@@ -0,0 +1,4 @@
+issuer:ca
+subject:ca
+extension:basicConstraints:cA,
+extension:keyUsage:cRLSign,keyCertSign
diff --git a/security/manager/ssl/tests/mochitest/browser/client-cert-via-intermediate.pem b/security/manager/ssl/tests/mochitest/browser/client-cert-via-intermediate.pem
new file mode 100644
index 0000000000..d5a039da41
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/client-cert-via-intermediate.pem
@@ -0,0 +1,19 @@
+-----BEGIN CERTIFICATE-----
+MIIDETCCAfmgAwIBAgIUAee5xOtLu81Y/SiLJ0STt50RMT8wDQYJKoZIhvcNAQEL
+BQAwQTEoMCYGA1UEAwwfVGVtcG9yYXJ5IENlcnRpZmljYXRlIEF1dGhvcml0eTEV
+MBMGA1UECwwMSW50ZXJtZWRpYXRlMCIYDzIwMjExMTI3MDAwMDAwWhgPMjAyNDAy
+MDUwMDAwMDBaMCcxJTAjBgNVBAMMHGNsaWVudCBjZXJ0IHZpYSBpbnRlcm1lZGlh
+dGUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC6iFGoRI4W1kH9braI
+BjYQPTwT2erkNUq07PVoV2wke8HHJajg2B+9sZwGm24ahvJr4q9adWtqZHEIeqVa
+p0WH9xzVJJwCfs1D/B5p0DggKZOrIMNJ5Nu5TMJrbA7tFYIP8X6taRqx0wI6iypB
+7qdw4A8Njf1mCyuwJJKkfbmIYXmQsVeQPdI7xeC4SB+oN9OIQ+8nFthVt2Zaqn4C
+kC86exCABiTMHGyXrZZhW7filhLAdTGjDJHdtMr3/K0dJdMJ77kXDqdo4bN7LyJv
+aeO0ipVhHe4m1iWdq5EITjbLHCQELL8Wiy/l8Y+ZFzG4s/5JI/pyUcQx1QOs2hgK
+Ne2NAgMBAAGjFzAVMBMGA1UdJQQMMAoGCCsGAQUFBwMCMA0GCSqGSIb3DQEBCwUA
+A4IBAQCE6MA6Fdz6xzNIKqV043/urSVLkVeUAwcSeezuQ3/mTOxP1tj5wtNj+Uso
+hS30XJT3geaVlNnr64+tHthJ0MC23lwEwVNPr6xGXfaFPeaw/ummrTPjhZYXWNKm
+oTmavnj5izA/czrwE0drzPSEKM36yX9xwf8iGAiKFpzYZkjX/0+KuG0rPm7Qgvcg
+fWY17qK3aQKJea/J+i1S4pKjiMxqigXdskTcyvwruagfSRXPbVjVhsmdObWFCcsE
+ry7PbOg9yMkjX4UkUOs2PqYjvRD9MqEIMJelBhi1wdi/TKVCAcvHb7MxYH+LP1Qw
+Pi1oYACb5mW9qKKClpSHxNr04NWA
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/client-cert-via-intermediate.pem.certspec b/security/manager/ssl/tests/mochitest/browser/client-cert-via-intermediate.pem.certspec
new file mode 100644
index 0000000000..cab2448889
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/client-cert-via-intermediate.pem.certspec
@@ -0,0 +1,3 @@
+issuer:/CN=Temporary Certificate Authority/OU=Intermediate
+subject:client cert via intermediate
+extension:extKeyUsage:clientAuth
diff --git a/security/manager/ssl/tests/mochitest/browser/client-cert-with-ocsp-signing.pem b/security/manager/ssl/tests/mochitest/browser/client-cert-with-ocsp-signing.pem
new file mode 100644
index 0000000000..78286e0d36
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/client-cert-with-ocsp-signing.pem
@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/client-cert-with-ocsp-signing.pem.certspec b/security/manager/ssl/tests/mochitest/browser/client-cert-with-ocsp-signing.pem.certspec
new file mode 100644
index 0000000000..5cbd5af8f0
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/client-cert-with-ocsp-signing.pem.certspec
@@ -0,0 +1,3 @@
+issuer:printableString/CN=Temporary Certificate Authority/O=Mozilla Testing/OU=Profile Guided Optimization
+subject:client cert with OCSPSigning eku
+extension:extKeyUsage:clientAuth,OCSPSigning
diff --git a/security/manager/ssl/tests/mochitest/browser/code-ee.pem b/security/manager/ssl/tests/mochitest/browser/code-ee.pem
new file mode 100644
index 0000000000..cf541b540b
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/code-ee.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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=
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/code-ee.pem.certspec b/security/manager/ssl/tests/mochitest/browser/code-ee.pem.certspec
new file mode 100644
index 0000000000..93f9a84265
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/code-ee.pem.certspec
@@ -0,0 +1,3 @@
+issuer:ca
+subject:code-ee
+extension:extKeyUsage:codeSigning
diff --git a/security/manager/ssl/tests/mochitest/browser/ee-from-expired-ca.pem b/security/manager/ssl/tests/mochitest/browser/ee-from-expired-ca.pem
new file mode 100644
index 0000000000..326888f61d
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/ee-from-expired-ca.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/ee-from-expired-ca.pem.certspec b/security/manager/ssl/tests/mochitest/browser/ee-from-expired-ca.pem.certspec
new file mode 100644
index 0000000000..3e280fc4fc
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/ee-from-expired-ca.pem.certspec
@@ -0,0 +1,2 @@
+issuer:expired-ca
+subject:ee-from-expired-ca
diff --git a/security/manager/ssl/tests/mochitest/browser/ee-from-untrusted-ca.pem b/security/manager/ssl/tests/mochitest/browser/ee-from-untrusted-ca.pem
new file mode 100644
index 0000000000..0eda6fea83
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/ee-from-untrusted-ca.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/ee-from-untrusted-ca.pem.certspec b/security/manager/ssl/tests/mochitest/browser/ee-from-untrusted-ca.pem.certspec
new file mode 100644
index 0000000000..833e1a23a6
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/ee-from-untrusted-ca.pem.certspec
@@ -0,0 +1,2 @@
+issuer:untrusted-ca
+subject:ee-from-untrusted-ca
diff --git a/security/manager/ssl/tests/mochitest/browser/email-ee.pem b/security/manager/ssl/tests/mochitest/browser/email-ee.pem
new file mode 100644
index 0000000000..8b9448c6a7
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/email-ee.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/email-ee.pem.certspec b/security/manager/ssl/tests/mochitest/browser/email-ee.pem.certspec
new file mode 100644
index 0000000000..82e3296706
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/email-ee.pem.certspec
@@ -0,0 +1,3 @@
+issuer:ca
+subject:email-ee
+extension:extKeyUsage:emailProtection
diff --git a/security/manager/ssl/tests/mochitest/browser/expired-ca.pem b/security/manager/ssl/tests/mochitest/browser/expired-ca.pem
new file mode 100644
index 0000000000..e019b37127
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/expired-ca.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/expired-ca.pem.certspec b/security/manager/ssl/tests/mochitest/browser/expired-ca.pem.certspec
new file mode 100644
index 0000000000..15bdcd7d73
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/expired-ca.pem.certspec
@@ -0,0 +1,5 @@
+issuer:ca
+subject:expired-ca
+extension:basicConstraints:cA,
+extension:keyUsage:cRLSign,keyCertSign
+validity:20100101-20110101
diff --git a/security/manager/ssl/tests/mochitest/browser/has-cn.pem b/security/manager/ssl/tests/mochitest/browser/has-cn.pem
new file mode 100644
index 0000000000..cccd8f92cc
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/has-cn.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/has-cn.pem.certspec b/security/manager/ssl/tests/mochitest/browser/has-cn.pem.certspec
new file mode 100644
index 0000000000..a4a0fcb5fa
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/has-cn.pem.certspec
@@ -0,0 +1,2 @@
+issuer:ca
+subject:/CN=Foo/OU=Bar/O=Baz/C=US
diff --git a/security/manager/ssl/tests/mochitest/browser/has-empty-subject.pem b/security/manager/ssl/tests/mochitest/browser/has-empty-subject.pem
new file mode 100644
index 0000000000..de3a247a5c
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/has-empty-subject.pem
@@ -0,0 +1,16 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/has-empty-subject.pem.certspec b/security/manager/ssl/tests/mochitest/browser/has-empty-subject.pem.certspec
new file mode 100644
index 0000000000..6346f7b83a
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/has-empty-subject.pem.certspec
@@ -0,0 +1,3 @@
+issuer:ca
+subject:
+serialNumber:10
diff --git a/security/manager/ssl/tests/mochitest/browser/has-non-empty-subject.pem b/security/manager/ssl/tests/mochitest/browser/has-non-empty-subject.pem
new file mode 100644
index 0000000000..af8b89c4b9
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/has-non-empty-subject.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/has-non-empty-subject.pem.certspec b/security/manager/ssl/tests/mochitest/browser/has-non-empty-subject.pem.certspec
new file mode 100644
index 0000000000..cc1b668a63
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/has-non-empty-subject.pem.certspec
@@ -0,0 +1,2 @@
+issuer:ca
+subject:/C=US
diff --git a/security/manager/ssl/tests/mochitest/browser/has-o.pem b/security/manager/ssl/tests/mochitest/browser/has-o.pem
new file mode 100644
index 0000000000..55353b8eb7
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/has-o.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----
+MIICuDCCAaCgAwIBAgIUaRRl+1wXs1a/UB82ZaCqoPtH0NswDQYJKoZIhvcNAQEL
+BQAwDTELMAkGA1UEAwwCY2EwIhgPMjAyMTExMjcwMDAwMDBaGA8yMDI0MDIwNTAw
+MDAwMFowGzEMMAoGA1UECgwDQmF6MQswCQYDVQQGEwJVUzCCASIwDQYJKoZIhvcN
+AQEBBQADggEPADCCAQoCggEBALqIUahEjhbWQf1utogGNhA9PBPZ6uQ1SrTs9WhX
+bCR7wcclqODYH72xnAabbhqG8mvir1p1a2pkcQh6pVqnRYf3HNUknAJ+zUP8HmnQ
+OCApk6sgw0nk27lMwmtsDu0Vgg/xfq1pGrHTAjqLKkHup3DgDw2N/WYLK7AkkqR9
+uYhheZCxV5A90jvF4LhIH6g304hD7ycW2FW3ZlqqfgKQLzp7EIAGJMwcbJetlmFb
+t+KWEsB1MaMMkd20yvf8rR0l0wnvuRcOp2jhs3svIm9p47SKlWEd7ibWJZ2rkQhO
+NsscJAQsvxaLL+Xxj5kXMbiz/kkj+nJRxDHVA6zaGAo17Y0CAwEAATANBgkqhkiG
+9w0BAQsFAAOCAQEAoZ6x5m03rOaM4Z2H1ZCu0gLLdoPgYvbTYvDQBMzea84mT8Zz
+D7UKQGIA2o72dhQY7xzs1rhNZJlog/hP/Xtve9vN/do2QPOlTuK/bKV92CdW3B+J
+D0xn8FM8qoMkFnwAIojhuRHJ5/CrnSrbBj5DPTBOktYW2mLGvFvMvGkZe0IMcSKO
+LhOrP1ZBn0jWGGmuGdtFnyiV2IGZMoXIYHGYWLLvzMbesNY3P90tWnzc1m8TTWZg
++KTj479e2DvWsxvVu5rG+oMLI65m+YbMmz93R7BYfO3exkzVK6ZDmZvxr5ggivCw
+HsselmxKcSpJbJuY6DvRtu9TwS3NJwCQJMJwPQ==
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/has-o.pem.certspec b/security/manager/ssl/tests/mochitest/browser/has-o.pem.certspec
new file mode 100644
index 0000000000..f7cc3ffc73
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/has-o.pem.certspec
@@ -0,0 +1,2 @@
+issuer:ca
+subject:/O=Baz/C=US
diff --git a/security/manager/ssl/tests/mochitest/browser/has-ou.pem b/security/manager/ssl/tests/mochitest/browser/has-ou.pem
new file mode 100644
index 0000000000..7fc4dc3a64
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/has-ou.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/has-ou.pem.certspec b/security/manager/ssl/tests/mochitest/browser/has-ou.pem.certspec
new file mode 100644
index 0000000000..8879dabf51
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/has-ou.pem.certspec
@@ -0,0 +1,2 @@
+issuer:ca
+subject:/OU=Bar/O=Baz/C=US
diff --git a/security/manager/ssl/tests/mochitest/browser/head.js b/security/manager/ssl/tests/mochitest/browser/head.js
new file mode 100644
index 0000000000..1ae951d7a5
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/head.js
@@ -0,0 +1,82 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+var gCertDB = Cc["@mozilla.org/security/x509certdb;1"].getService(
+  Ci.nsIX509CertDB
+);
+
+/**
+ * List of certs imported via readCertificate(). Certs in this list are
+ * automatically deleted from the cert DB when a test including this head file
+ * finishes.
+ *
+ * @type {nsIX509Cert[]}
+ */
+var gImportedCerts = [];
+
+registerCleanupFunction(() => {
+  for (let cert of gImportedCerts) {
+    gCertDB.deleteCertificate(cert);
+  }
+});
+
+// This function serves the same purpose as the one defined in head_psm.js.
+function pemToBase64(pem) {
+  return pem
+    .replace(/-----BEGIN CERTIFICATE-----/, "")
+    .replace(/-----END CERTIFICATE-----/, "")
+    .replace(/[\r\n]/g, "");
+}
+
+/**
+ * Given the filename of a certificate, returns a promise that will resolve with
+ * a handle to the certificate when that certificate has been read and imported
+ * with the given trust settings.
+ *
+ * Certs imported via this function will automatically be deleted from the cert
+ * DB once the calling test finishes.
+ *
+ * @param {string} filename
+ *        The filename of the certificate (assumed to be in the same directory).
+ * @param {string} trustString
+ *        A string describing how the certificate should be trusted (see
+ *        `certutil -A --help`).
+ * @returns {Promise}
+ *         A promise that will resolve with a handle to the certificate.
+ */
+function readCertificate(filename, trustString) {
+  return IOUtils.readUTF8(getTestFilePath(filename)).then(
+    pem => {
+      let certdb = Cc["@mozilla.org/security/x509certdb;1"].getService(
+        Ci.nsIX509CertDB
+      );
+      let base64 = pemToBase64(pem);
+      certdb.addCertFromBase64(base64, trustString);
+      let cert = certdb.constructX509FromBase64(base64);
+      gImportedCerts.push(cert);
+      return cert;
+    },
+    error => {
+      throw error;
+    }
+  );
+}
+
+/**
+ * Asynchronously opens the certificate manager.
+ *
+ * @returns {Window} a handle on the opened certificate manager window
+ */
+async function openCertManager() {
+  let win = window.openDialog("chrome://pippki/content/certManager.xhtml");
+  return new Promise((resolve, reject) => {
+    win.addEventListener(
+      "load",
+      function () {
+        executeSoon(() => resolve(win));
+      },
+      { once: true }
+    );
+  });
+}
diff --git a/security/manager/ssl/tests/mochitest/browser/hsts_headers.sjs b/security/manager/ssl/tests/mochitest/browser/hsts_headers.sjs
new file mode 100644
index 0000000000..95eede25f0
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/hsts_headers.sjs
@@ -0,0 +1,16 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+"use strict";
+
+function handleRequest(request, response) {
+  let hstsHeader = "max-age=300";
+  if (request.queryString == "includeSubdomains") {
+    hstsHeader += "; includeSubdomains";
+  }
+  response.setHeader("Strict-Transport-Security", hstsHeader);
+  response.setHeader("Pragma", "no-cache");
+  response.setHeader("Cache-Control", "no-cache", false);
+  response.setHeader("Content-Type", "text/html", false);
+  response.setStatusLine(request.httpVersion, 200);
+  response.write("<!DOCTYPE html><html><body><h1>Ok!</h1></body></html>");
+}
diff --git a/security/manager/ssl/tests/mochitest/browser/hsts_headers_framed.html b/security/manager/ssl/tests/mochitest/browser/hsts_headers_framed.html
new file mode 100644
index 0000000000..5a0791557b
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/hsts_headers_framed.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<body>
+<script>
+  "use strict";
+
+  let src = document.location.href.replace("hsts_headers_framed.html", "hsts_headers.sjs");
+  if (document.location.search == "?third-party") {
+    src = src.replace("example.com", "example.org");
+  }
+  let frame = document.createElement("iframe");
+  frame.setAttribute("src", src);
+  frame.onload = () => {
+    let done = document.createElement("h1");
+    done.textContent = "done";
+    done.setAttribute("id", "done");
+    document.body.appendChild(done);
+  };
+  document.body.appendChild(frame);
+</script>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/browser/intermediate.pem b/security/manager/ssl/tests/mochitest/browser/intermediate.pem
new file mode 100644
index 0000000000..08d8d31c9f
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/intermediate.pem
@@ -0,0 +1,20 @@
+-----BEGIN CERTIFICATE-----
+MIIDWjCCAkKgAwIBAgIUFfVirSKu6HtZb2LYCmJb2aHMq0wwDQYJKoZIhvcNAQEL
+BQAwajEoMCYGA1UEAxMfVGVtcG9yYXJ5IENlcnRpZmljYXRlIEF1dGhvcml0eTEY
+MBYGA1UEChMPTW96aWxsYSBUZXN0aW5nMSQwIgYDVQQLExtQcm9maWxlIEd1aWRl
+ZCBPcHRpbWl6YXRpb24wIhgPMjAyMTExMjcwMDAwMDBaGA8yMDI0MDIwNTAwMDAw
+MFowQTEoMCYGA1UEAwwfVGVtcG9yYXJ5IENlcnRpZmljYXRlIEF1dGhvcml0eTEV
+MBMGA1UECwwMSW50ZXJtZWRpYXRlMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB
+CgKCAQEAuohRqESOFtZB/W62iAY2ED08E9nq5DVKtOz1aFdsJHvBxyWo4NgfvbGc
+BptuGobya+KvWnVramRxCHqlWqdFh/cc1SScAn7NQ/weadA4ICmTqyDDSeTbuUzC
+a2wO7RWCD/F+rWkasdMCOosqQe6ncOAPDY39ZgsrsCSSpH25iGF5kLFXkD3SO8Xg
+uEgfqDfTiEPvJxbYVbdmWqp+ApAvOnsQgAYkzBxsl62WYVu34pYSwHUxowyR3bTK
+9/ytHSXTCe+5Fw6naOGzey8ib2njtIqVYR3uJtYlnauRCE42yxwkBCy/Fosv5fGP
+mRcxuLP+SSP6clHEMdUDrNoYCjXtjQIDAQABox0wGzAMBgNVHRMEBTADAQH/MAsG
+A1UdDwQEAwIBBjANBgkqhkiG9w0BAQsFAAOCAQEAdKOLt5qF0rjrdg+yVRYeeFQM
+wF2w3aYSqjFLC0pxjYxta3TZVYA8JsErqIefsaU+lvURUFpAZxBhocySXOOkjhdo
+BtJDa5XpPmcRbLpj3YmL1TxBsgkyVJyWHg8RczxE2RckROAIrk/EoQU7yi4kjXxr
+g/uaxekzGYq2dysPR4+Pm1HfnpBRXVQ20P77AJmYrB6HFGHTXR7FsU2CdXQU5D4K
+UfmyBbJA2jfZZLl05rPkJNHCoI3WWdMDyGEMo+cuYJ3/lfPE7k7LGANrn1fUkC8u
+RgXoGKW/UBpLGsluYwMDiSGrsUe2G3Iv63K0Z+HYEMs/Ez03ueph5R2aanVeHQ==
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/intermediate.pem.certspec b/security/manager/ssl/tests/mochitest/browser/intermediate.pem.certspec
new file mode 100644
index 0000000000..a562814041
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/intermediate.pem.certspec
@@ -0,0 +1,4 @@
+issuer:printableString/CN=Temporary Certificate Authority/O=Mozilla Testing/OU=Profile Guided Optimization
+subject:/CN=Temporary Certificate Authority/OU=Intermediate
+extension:basicConstraints:cA,
+extension:keyUsage:keyCertSign,cRLSign
diff --git a/security/manager/ssl/tests/mochitest/browser/invalid.pem b/security/manager/ssl/tests/mochitest/browser/invalid.pem
new file mode 100644
index 0000000000..0fabf3e81c
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/invalid.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/invalid.pem.certspec b/security/manager/ssl/tests/mochitest/browser/invalid.pem.certspec
new file mode 100644
index 0000000000..71a1707c35
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/invalid.pem.certspec
@@ -0,0 +1,3 @@
+issuer:ca
+subject:invalid
+extension:keyUsage:cRLSign,keyCertSign
diff --git a/security/manager/ssl/tests/mochitest/browser/longOID.pem b/security/manager/ssl/tests/mochitest/browser/longOID.pem
new file mode 100644
index 0000000000..d199f88a01
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/longOID.pem
@@ -0,0 +1,25 @@
+-----BEGIN CERTIFICATE-----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==
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/longOID.pem.certspec b/security/manager/ssl/tests/mochitest/browser/longOID.pem.certspec
new file mode 100644
index 0000000000..c3c08ac84b
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/longOID.pem.certspec
@@ -0,0 +1,4 @@
+issuer:Long OID
+subject:Long OID
+extension:basicConstraints:cA,
+extension:certificatePolicies:1.2.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.999999999.1
diff --git a/security/manager/ssl/tests/mochitest/browser/md5-ee.pem b/security/manager/ssl/tests/mochitest/browser/md5-ee.pem
new file mode 100644
index 0000000000..b65bd1a9e9
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/md5-ee.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/md5-ee.pem.certspec b/security/manager/ssl/tests/mochitest/browser/md5-ee.pem.certspec
new file mode 100644
index 0000000000..279c158026
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/md5-ee.pem.certspec
@@ -0,0 +1,3 @@
+issuer:ca
+subject:md5-ee
+signature:md5WithRSAEncryption
diff --git a/security/manager/ssl/tests/mochitest/browser/moz.build b/security/manager/ssl/tests/mochitest/browser/moz.build
new file mode 100644
index 0000000000..67b1ac4bbb
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/moz.build
@@ -0,0 +1,7 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+BROWSER_CHROME_MANIFESTS += ["browser.ini"]
diff --git a/security/manager/ssl/tests/mochitest/browser/pgo-ca-all-usages.pem b/security/manager/ssl/tests/mochitest/browser/pgo-ca-all-usages.pem
new file mode 100644
index 0000000000..8017659689
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/pgo-ca-all-usages.pem
@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/pgo-ca-all-usages.pem.certspec b/security/manager/ssl/tests/mochitest/browser/pgo-ca-all-usages.pem.certspec
new file mode 100644
index 0000000000..4def496f67
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/pgo-ca-all-usages.pem.certspec
@@ -0,0 +1,4 @@
+issuer:printableString/CN=Temporary Certificate Authority/O=Mozilla Testing/OU=Profile Guided Optimization
+subject:printableString/CN=Temporary Certificate Authority/O=Mozilla Testing/OU=Profile Guided Optimization
+extension:basicConstraints:cA,
+extension:keyUsage:digitalSignature,nonRepudiation,keyEncipherment,dataEncipherment,keyAgreement,keyCertSign,cRLSign
diff --git a/security/manager/ssl/tests/mochitest/browser/pgo-ca-regular-usages.pem b/security/manager/ssl/tests/mochitest/browser/pgo-ca-regular-usages.pem
new file mode 100644
index 0000000000..502632f5a3
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/pgo-ca-regular-usages.pem
@@ -0,0 +1,21 @@
+-----BEGIN CERTIFICATE-----
+MIIDgzCCAmugAwIBAgIUU34Ahx5Y3OrxTZ8Zij+34BQHt4AwDQYJKoZIhvcNAQEL
+BQAwajEoMCYGA1UEAxMfVGVtcG9yYXJ5IENlcnRpZmljYXRlIEF1dGhvcml0eTEY
+MBYGA1UEChMPTW96aWxsYSBUZXN0aW5nMSQwIgYDVQQLExtQcm9maWxlIEd1aWRl
+ZCBPcHRpbWl6YXRpb24wIhgPMjAyMTExMjcwMDAwMDBaGA8yMDI0MDIwNTAwMDAw
+MFowajEoMCYGA1UEAxMfVGVtcG9yYXJ5IENlcnRpZmljYXRlIEF1dGhvcml0eTEY
+MBYGA1UEChMPTW96aWxsYSBUZXN0aW5nMSQwIgYDVQQLExtQcm9maWxlIEd1aWRl
+ZCBPcHRpbWl6YXRpb24wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC6
+iFGoRI4W1kH9braIBjYQPTwT2erkNUq07PVoV2wke8HHJajg2B+9sZwGm24ahvJr
+4q9adWtqZHEIeqVap0WH9xzVJJwCfs1D/B5p0DggKZOrIMNJ5Nu5TMJrbA7tFYIP
+8X6taRqx0wI6iypB7qdw4A8Njf1mCyuwJJKkfbmIYXmQsVeQPdI7xeC4SB+oN9OI
+Q+8nFthVt2Zaqn4CkC86exCABiTMHGyXrZZhW7filhLAdTGjDJHdtMr3/K0dJdMJ
+77kXDqdo4bN7LyJvaeO0ipVhHe4m1iWdq5EITjbLHCQELL8Wiy/l8Y+ZFzG4s/5J
+I/pyUcQx1QOs2hgKNe2NAgMBAAGjHTAbMAwGA1UdEwQFMAMBAf8wCwYDVR0PBAQD
+AgEGMA0GCSqGSIb3DQEBCwUAA4IBAQCqS4h6tvzNQUKlLt3gdUuOjviVTfOhc2qA
+w0TmWZUY2DDfIo1jggqH2yIikPGByOfkEJ3VICRk0N6Ivk6Nh3EZyp/mmebpGOIV
+Qz9itOzknvny33LwVFovwer4hnHXGKIrcGDIORNWt6BGJ0oREji6bZ8Py12ZuMJ3
+stXdKN3bOrVqrDbCBAmaXuqtngpob5TRCP5/6WJDaFE3JjKOpY+JIwXFSotA+/PO
+aNRF5kGRyBsuESb3l5UNMckwMZedxYCndT4ntGxoA/YJ/lo0boqaP4lVqpbabIqp
+G42FXocz+dpeWPZYFZEx/hNBQRqXNegIuzv7U4rdeHfbuyxDJhXo
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/pgo-ca-regular-usages.pem.certspec b/security/manager/ssl/tests/mochitest/browser/pgo-ca-regular-usages.pem.certspec
new file mode 100644
index 0000000000..448e167bd0
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/pgo-ca-regular-usages.pem.certspec
@@ -0,0 +1,4 @@
+issuer:printableString/CN=Temporary Certificate Authority/O=Mozilla Testing/OU=Profile Guided Optimization
+subject:printableString/CN=Temporary Certificate Authority/O=Mozilla Testing/OU=Profile Guided Optimization
+extension:basicConstraints:cA,
+extension:keyUsage:keyCertSign,cRLSign
diff --git a/security/manager/ssl/tests/mochitest/browser/revoked.pem b/security/manager/ssl/tests/mochitest/browser/revoked.pem
new file mode 100644
index 0000000000..db8fca458a
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/revoked.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/revoked.pem.certspec b/security/manager/ssl/tests/mochitest/browser/revoked.pem.certspec
new file mode 100644
index 0000000000..daf75c670f
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/revoked.pem.certspec
@@ -0,0 +1,2 @@
+issuer:ca
+subject:revoked
diff --git a/security/manager/ssl/tests/mochitest/browser/some_content.html b/security/manager/ssl/tests/mochitest/browser/some_content.html
new file mode 100644
index 0000000000..f591f32d3d
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/some_content.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<html>
+<body>
+<h1>Some Content!</h1>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/browser/some_content_framed.html b/security/manager/ssl/tests/mochitest/browser/some_content_framed.html
new file mode 100644
index 0000000000..8f8194f9e7
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/some_content_framed.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+<body>
+<script>
+  "use strict";
+
+  let src = document.location.href.replace("https://", "http://");
+  let frame = document.createElement("iframe");
+  frame.setAttribute("id", "frame");
+  frame.setAttribute("src", src);
+  document.body.appendChild(frame);
+</script>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/browser/ssl-ee.pem b/security/manager/ssl/tests/mochitest/browser/ssl-ee.pem
new file mode 100644
index 0000000000..0ea778c9c3
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/ssl-ee.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/ssl-ee.pem.certspec b/security/manager/ssl/tests/mochitest/browser/ssl-ee.pem.certspec
new file mode 100644
index 0000000000..c4037675f1
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/ssl-ee.pem.certspec
@@ -0,0 +1,3 @@
+issuer:ca
+subject:ssl-ee
+extension:extKeyUsage:serverAuth,clientAuth
diff --git a/security/manager/ssl/tests/mochitest/browser/unknown-issuer.pem b/security/manager/ssl/tests/mochitest/browser/unknown-issuer.pem
new file mode 100644
index 0000000000..5154c97ccd
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/unknown-issuer.pem
@@ -0,0 +1,17 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/unknown-issuer.pem.certspec b/security/manager/ssl/tests/mochitest/browser/unknown-issuer.pem.certspec
new file mode 100644
index 0000000000..c76a4e2c7b
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/unknown-issuer.pem.certspec
@@ -0,0 +1,2 @@
+issuer:unknown
+subject:unknown-issuer
diff --git a/security/manager/ssl/tests/mochitest/browser/untrusted-ca.pem b/security/manager/ssl/tests/mochitest/browser/untrusted-ca.pem
new file mode 100644
index 0000000000..4f09a837ae
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/untrusted-ca.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/mochitest/browser/untrusted-ca.pem.certspec b/security/manager/ssl/tests/mochitest/browser/untrusted-ca.pem.certspec
new file mode 100644
index 0000000000..04f4430574
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/browser/untrusted-ca.pem.certspec
@@ -0,0 +1,4 @@
+issuer:ca
+subject:untrusted-ca
+extension:basicConstraints:cA,
+extension:keyUsage:cRLSign,keyCertSign
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/alloworigin.sjs b/security/manager/ssl/tests/mochitest/mixedcontent/alloworigin.sjs
new file mode 100644
index 0000000000..96c14f4e65
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/alloworigin.sjs
@@ -0,0 +1,7 @@
+"use strict";
+
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 200, "OK");
+  response.setHeader("Access-Control-Allow-Origin", "*");
+  response.write("<html><body>hello!</body></html>");
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/backward.html b/security/manager/ssl/tests/mochitest/mixedcontent/backward.html
new file mode 100644
index 0000000000..8699a07dda
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/backward.html
@@ -0,0 +1,18 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <script type="text/javascript">
+  "use strict";
+  window.onload = function()
+  {
+    window.setTimeout(function()
+    {
+      SpecialPowers.wrap(window).docShell
+        .QueryInterface(SpecialPowers.Ci.nsIWebNavigation)
+        .goBack();
+    }, 100);
+  };
+
+  </script>
+</head>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/bug329869.js b/security/manager/ssl/tests/mochitest/mixedcontent/bug329869.js
new file mode 100644
index 0000000000..9d67ba1f92
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/bug329869.js
@@ -0,0 +1,11 @@
+/* import-globals-from mixedContentTest.js */
+"use strict";
+
+document.open();
+// eslint-disable-next-line no-unsanitized/method
+document.write("This is insecure XSS script " + document.cookie);
+isSecurityState(
+  "broken",
+  "security broken after document write from unsecure script"
+);
+finish();
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/bug383369step2.html b/security/manager/ssl/tests/mochitest/mixedcontent/bug383369step2.html
new file mode 100644
index 0000000000..4bbf9bfe8c
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/bug383369step2.html
@@ -0,0 +1,28 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 383369 test, step 2</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/does_not_exist.css">
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  window.onload = function runTest() {
+    window.setTimeout(function () {
+      window.location =
+        "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/bug383369step3.html?runtest";
+    }, 0);
+  };
+
+  async function afterNavigationTest()
+  {
+  }
+
+  </script>
+</head>
+
+<body>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/bug383369step3.html b/security/manager/ssl/tests/mochitest/mixedcontent/bug383369step3.html
new file mode 100644
index 0000000000..276c2343fd
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/bug383369step3.html
@@ -0,0 +1,29 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 383369 test, final step</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    await isSecurityState("secure", "secure page after insecure download and insecure subcontent still secure");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("secure", "still secure after back/forward");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/download.auto b/security/manager/ssl/tests/mochitest/mixedcontent/download.auto
new file mode 100644
index 0000000000..4d2fb7d5ae
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/download.auto
@@ -0,0 +1 @@
+Temporary file for security/mixedconent tests
\ No newline at end of file
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/download.auto^headers^ b/security/manager/ssl/tests/mochitest/mixedcontent/download.auto^headers^
new file mode 100644
index 0000000000..9c3159e153
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/download.auto^headers^
@@ -0,0 +1,2 @@
+Content-disposition: "attachment"
+Content-type: application/x-auto-download
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/emptyimage.sjs b/security/manager/ssl/tests/mochitest/mixedcontent/emptyimage.sjs
new file mode 100644
index 0000000000..9e34227f00
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/emptyimage.sjs
@@ -0,0 +1,6 @@
+"use strict";
+
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 200, "OK");
+  //response.setHeader("Content-type", "image/gif");
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/hugebmp.sjs b/security/manager/ssl/tests/mochitest/mixedcontent/hugebmp.sjs
new file mode 100644
index 0000000000..5f78a806b4
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/hugebmp.sjs
@@ -0,0 +1,17 @@
+"use strict";
+
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 200, "OK");
+  response.setHeader("Content-type", "image/bitmap");
+
+  let bmpheader =
+    "\x42\x4D\x36\x10\x0E\x00\x00\x00\x00\x00\x36\x00\x00\x00\x28\x00\x00\x00\x80\x02\x00\x00\xE0\x01\x00\x00\x01\x00\x18\x00\x00\x00\x00\x00\x00\x10\x0E\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
+  let bmpdatapiece =
+    "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
+
+  response.bodyOutputStream.write(bmpheader, 54);
+  // Fill 640*480*3 nulls
+  for (let i = 0; i < (640 * 480 * 3) / 64; ++i) {
+    response.bodyOutputStream.write(bmpdatapiece, 64);
+  }
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html b/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html
new file mode 100644
index 0000000000..064783e0cb
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html
@@ -0,0 +1,14 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+</head>
+
+<body>
+  This is frame 1:
+  <script>
+    "use strict";
+    // eslint-disable-next-line no-unsanitized/method
+    document.write(location.href);
+  </script>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/iframe2.html b/security/manager/ssl/tests/mochitest/mixedcontent/iframe2.html
new file mode 100644
index 0000000000..37fc604ea6
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/iframe2.html
@@ -0,0 +1,15 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+</head>
+
+<body>
+  This is frame 2:
+  <script>
+    "use strict";
+    // eslint-disable-next-line no-unsanitized/method
+    document.write(location.href);
+  </script>
+  <iframe src="http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html"></iframe>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/iframeMetaRedirect.html b/security/manager/ssl/tests/mochitest/mixedcontent/iframeMetaRedirect.html
new file mode 100644
index 0000000000..6c7a5473cb
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/iframeMetaRedirect.html
@@ -0,0 +1,8 @@
+<!DOCTYPE HTML>
+<META http-equiv="Refresh"
+      Content="0; URL=http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html">
+<html>
+  <body>
+    Redirecting by meta tag...
+  </body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/iframesecredirect.sjs b/security/manager/ssl/tests/mochitest/mixedcontent/iframesecredirect.sjs
new file mode 100644
index 0000000000..914391e8f5
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/iframesecredirect.sjs
@@ -0,0 +1,9 @@
+"use strict";
+
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 307, "Moved temporarly");
+  response.setHeader(
+    "Location",
+    "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html"
+  );
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/iframeunsecredirect.sjs b/security/manager/ssl/tests/mochitest/mixedcontent/iframeunsecredirect.sjs
new file mode 100644
index 0000000000..32afc824ea
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/iframeunsecredirect.sjs
@@ -0,0 +1,9 @@
+"use strict";
+
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 307, "Moved temporarly");
+  response.setHeader(
+    "Location",
+    "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html"
+  );
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/imgsecredirect.sjs b/security/manager/ssl/tests/mochitest/mixedcontent/imgsecredirect.sjs
new file mode 100644
index 0000000000..cb966a56d2
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/imgsecredirect.sjs
@@ -0,0 +1,9 @@
+"use strict";
+
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 307, "Moved temporarly");
+  response.setHeader(
+    "Location",
+    "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg"
+  );
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/imgunsecredirect.sjs b/security/manager/ssl/tests/mochitest/mixedcontent/imgunsecredirect.sjs
new file mode 100644
index 0000000000..d128ce2238
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/imgunsecredirect.sjs
@@ -0,0 +1,9 @@
+"use strict";
+
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 307, "Moved temporarly");
+  response.setHeader(
+    "Location",
+    "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg"
+  );
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/mixedContentTest.js b/security/manager/ssl/tests/mochitest/mixedcontent/mixedContentTest.js
new file mode 100644
index 0000000000..6c300b7fc3
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/mixedContentTest.js
@@ -0,0 +1,211 @@
+"use strict";
+
+/**
+ * Helper script for mixed content testing. It opens a new top-level window
+ * from a secure origin and '?runtest' query. That tells us to run the test
+ * body, function runTest(). Then we wait for call of finish(). On its first
+ * call it loads helper page 'backward.html' that immediately navigates
+ * back to the test secure test. This checks the bfcache. We got second call
+ * to onload and this time we call afterNavigationTest() function to let the
+ * test check security state after re-navigation back. Then we again wait for
+ * finish() call, that this time finishes completelly the test.
+ */
+
+// Tells the framework if to load the test in an insecure page (http://)
+var loadAsInsecure = false;
+// Set true to bypass the navigation forward/back test
+var bypassNavigationTest = false;
+// Set true to do forward/back navigation over an http:// page, test state leaks
+var navigateToInsecure = false;
+// Open the test in two separate windows, test requests sharing among windows
+var openTwoWindows = false;
+// Override the name of the test page to load, useful e.g. to prevent load
+// of images or other content before the test starts; this is actually
+// a 'redirect' to a different test page.
+var testPage = "";
+// Assign a function to this variable to have a clean up at the end
+var testCleanUp = null;
+// Contains mixed active content that needs to load to run the test
+var hasMixedActiveContent = false;
+
+// Internal variables
+var _windowCount = 0;
+
+window.onload = async function onLoad() {
+  if (location.search == "?runtest") {
+    try {
+      if (history.length == 1) {
+        // Each test that includes this helper file is supposed to define
+        // runTest(). See the top level comment.
+        await runTest(); // eslint-disable-line no-undef
+      } else {
+        // Each test that includes this helper file is supposed to define
+        // afterNavigationTest(). See the top level comment.
+        await afterNavigationTest(); // eslint-disable-line no-undef
+      }
+    } catch (ex) {
+      ok(false, "Exception thrown during test: " + ex);
+      finish();
+    }
+  } else {
+    window.addEventListener("message", onMessageReceived);
+
+    let secureTestLocation = loadAsInsecure
+      ? "http://example.com"
+      : "https://example.com";
+    secureTestLocation += location.pathname;
+    if (testPage != "") {
+      let array = secureTestLocation.split("/");
+      array.pop();
+      array.push(testPage);
+      secureTestLocation = array.join("/");
+    }
+    secureTestLocation += "?runtest";
+
+    if (hasMixedActiveContent) {
+      SpecialPowers.pushPrefEnv(
+        { set: [["security.mixed_content.block_active_content", false]] },
+        null
+      );
+    }
+    if (openTwoWindows) {
+      _windowCount = 2;
+      window.open(secureTestLocation, "_new1", "");
+      window.open(secureTestLocation, "_new2", "");
+    } else {
+      _windowCount = 1;
+      window.open(secureTestLocation);
+    }
+  }
+};
+
+function onMessageReceived(event) {
+  switch (event.data) {
+    // Indication of all test parts finish (from any of the frames)
+    case "done":
+      if (--_windowCount == 0) {
+        if (testCleanUp) {
+          testCleanUp();
+        }
+        if (hasMixedActiveContent) {
+          SpecialPowers.popPrefEnv(null);
+        }
+
+        SimpleTest.finish();
+      }
+      break;
+
+    // Any other message is an error or success message of a test.
+    default:
+      SimpleTest.ok(!event.data.match(/^FAILURE/), event.data);
+      break;
+  }
+}
+
+function postMsg(message) {
+  opener.postMessage(message, "http://mochi.test:8888");
+}
+
+function finish() {
+  if (history.length == 1 && !bypassNavigationTest) {
+    window.setTimeout(() => {
+      window.location.assign(
+        navigateToInsecure
+          ? "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/backward.html"
+          : "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/backward.html"
+      );
+    }, 0);
+  } else {
+    postMsg("done");
+    window.close();
+  }
+}
+
+function ok(a, message) {
+  if (!a) {
+    postMsg("FAILURE: " + message);
+  } else {
+    postMsg(message);
+  }
+}
+
+function is(a, b, message) {
+  if (a != b) {
+    postMsg(`FAILURE: ${message}, expected ${b} got ${a}`);
+  } else {
+    postMsg(`${message}, expected ${b} got ${a}`);
+  }
+}
+
+async function isSecurityState(expectedState, message, test) {
+  if (!test) {
+    test = ok;
+  }
+
+  let state = await SpecialPowers.getSecurityState(window);
+
+  let isInsecure =
+    state & SpecialPowers.Ci.nsIWebProgressListener.STATE_IS_INSECURE;
+  let isBroken =
+    state & SpecialPowers.Ci.nsIWebProgressListener.STATE_IS_BROKEN;
+  let isEV =
+    state & SpecialPowers.Ci.nsIWebProgressListener.STATE_IDENTITY_EV_TOPLEVEL;
+
+  let gotState = "secure";
+  if (isInsecure) {
+    gotState = "insecure";
+  } else if (isBroken) {
+    gotState = "broken";
+  } else if (isEV) {
+    gotState = "EV";
+  }
+
+  test(
+    gotState == expectedState,
+    (message || "") + ", expected " + expectedState + " got " + gotState
+  );
+
+  switch (expectedState) {
+    case "insecure":
+      test(
+        isInsecure && !isBroken && !isEV,
+        "for 'insecure' excpected flags [1,0,0], " + (message || "")
+      );
+      break;
+    case "broken":
+      test(
+        !isInsecure && isBroken && !isEV,
+        "for 'broken' expected  flags [0,1,0], " + (message || "")
+      );
+      break;
+    case "secure":
+      test(
+        !isInsecure && !isBroken && !isEV,
+        "for 'secure' expected flags [0,0,0], " + (message || "")
+      );
+      break;
+    case "EV":
+      test(
+        !isInsecure && !isBroken && isEV,
+        "for 'EV' expected flags [0,0,1], " + (message || "")
+      );
+      break;
+    default:
+      throw new Error("Invalid isSecurityState state");
+  }
+}
+
+function waitForSecurityState(expectedState, callback) {
+  let roundsLeft = 200; // Wait for 20 seconds (=200*100ms)
+  let interval = window.setInterval(async () => {
+    await isSecurityState(expectedState, "", isok => {
+      if (isok) {
+        roundsLeft = 0;
+      }
+    });
+    if (!roundsLeft--) {
+      window.clearInterval(interval);
+      callback();
+    }
+  }, 100);
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/mochitest.ini b/security/manager/ssl/tests/mochitest/mixedcontent/mochitest.ini
new file mode 100644
index 0000000000..ec68371093
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/mochitest.ini
@@ -0,0 +1,70 @@
+[DEFAULT]
+# Disable for Http/3 since Http/3 tests require to run with https.
+skip-if =
+  http3
+prefs =
+  security.mixed_content.upgrade_display_content=false
+  dom.security.https_first=false
+support-files =
+  alloworigin.sjs
+  backward.html
+  bug329869.js
+  bug383369step2.html
+  bug383369step3.html
+  download.auto
+  download.auto^headers^
+  emptyimage.sjs
+  hugebmp.sjs
+  iframe.html
+  iframe2.html
+  iframeMetaRedirect.html
+  iframesecredirect.sjs
+  iframeunsecredirect.sjs
+  imgsecredirect.sjs
+  imgunsecredirect.sjs
+  mixedContentTest.js
+  moonsurface.jpg
+  nocontent.sjs
+  redirecttoemptyimage.sjs
+  somestyle.css
+  unsecureIframe.html
+  unsecurePictureDup.html
+
+[test_bug329869.html]
+[test_bug383369.html]
+skip-if = toolkit == 'android'
+[test_bug455367.html]
+[test_bug472986.html]
+[test_bug477118.html]
+[test_bug521461.html]
+[test_cssBefore1.html]
+[test_cssContent1.html]
+[test_cssContent2.html]
+[test_documentWrite1.html]
+[test_documentWrite2.html]
+[test_dynDelayedUnsecurePicture.html]
+[test_dynDelayedUnsecureXHR.html]
+[test_dynUnsecureBackground.html]
+[test_dynUnsecureIframeRedirect.html]
+[test_dynUnsecurePicture.html]
+[test_dynUnsecurePicturePreload.html]
+[test_dynUnsecureRedirect.html]
+disabled=intermitently fails, quite often, bug 487402
+[test_innerHtmlDelayedUnsecurePicture.html]
+[test_innerHtmlUnsecurePicture.html]
+[test_javascriptPicture.html]
+[test_secureAll.html]
+[test_securePicture.html]
+[test_unsecureBackground.html]
+[test_unsecureCSS.html]
+[test_unsecureIframe.html]
+[test_unsecureIframe2.html]
+skip-if =
+  fission && os == "android" # Bug 1827330
+[test_unsecureIframeMetaRedirect.html]
+disabled=intermittently fails, less often, bug 487632
+[test_unsecureIframeRedirect.html]
+[test_unsecurePicture.html]
+[test_unsecurePictureDup.html]
+[test_unsecurePictureInIframe.html]
+[test_unsecureRedirect.html]
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg b/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg
new file mode 100644
index 0000000000..c0ffca256a
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/moz.build b/security/manager/ssl/tests/mochitest/mixedcontent/moz.build
new file mode 100644
index 0000000000..7c990fbc62
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/moz.build
@@ -0,0 +1,7 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+MOCHITEST_MANIFESTS += ["mochitest.ini"]
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/nocontent.sjs b/security/manager/ssl/tests/mochitest/mixedcontent/nocontent.sjs
new file mode 100644
index 0000000000..d5d65cf8a4
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/nocontent.sjs
@@ -0,0 +1,5 @@
+"use strict";
+
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 204, "No Content");
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/redirecttoemptyimage.sjs b/security/manager/ssl/tests/mochitest/mixedcontent/redirecttoemptyimage.sjs
new file mode 100644
index 0000000000..98ed0a2f52
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/redirecttoemptyimage.sjs
@@ -0,0 +1,9 @@
+"use strict";
+
+function handleRequest(request, response) {
+  response.setStatusLine(request.httpVersion, 307, "Moved temporarly");
+  response.setHeader(
+    "Location",
+    "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/emptyimage.sjs"
+  );
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/somestyle.css b/security/manager/ssl/tests/mochitest/mixedcontent/somestyle.css
new file mode 100644
index 0000000000..9867e3c41e
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/somestyle.css
@@ -0,0 +1,4 @@
+body
+{
+  background-color: lightBlue;
+}
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_bug329869.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug329869.html
new file mode 100644
index 0000000000..ccb9a8d9cf
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug329869.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>dymanic script load</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  hasMixedActiveContent = true;
+
+  async function runTest()
+  {
+    await isSecurityState("secure");
+    window.setTimeout(function () {
+      let newElement = document.createElement("script");
+      newElement.src = "http://example.org/tests/security/manager/ssl/tests/" +
+                       "mochitest/mixedcontent/bug329869.js";
+      document.body.appendChild(newElement);
+    }, 0);
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("secure", "when we navigate back, we're loading our secure page again and not loading an insecure script, so our security state is secure");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_bug383369.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug383369.html
new file mode 100644
index 0000000000..8341f83744
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug383369.html
@@ -0,0 +1,89 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 383369 test</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  // We want to start this test from an insecure context
+  loadAsInsecure = true;
+  // We don't want to go through the navigation back/forward test
+  bypassNavigationTest = true;
+
+  async function runTest() {
+    let script = SpecialPowers.loadChromeScript(function() {
+      /* eslint-env mozilla/chrome-script */
+      // Force download to be w/o user assistance for our testing mime type
+      const mimeSvc = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
+      let handlerInfo =
+        mimeSvc.getFromTypeAndExtension("application/x-auto-download", "auto");
+      handlerInfo.preferredAction = Ci.nsIHandlerInfo.saveToDisk;
+      handlerInfo.alwaysAskBeforeHandling = false;
+      handlerInfo.preferredApplicationHandler = null;
+
+      const handlerSvc = Cc["@mozilla.org/uriloader/handler-service;1"]
+                           .getService(Ci.nsIHandlerService);
+      handlerSvc.store(handlerInfo);
+
+      let profileDir = Services.dirsvc.get("ProfDS", Ci.nsIFile);
+      profileDir.append("downloads");
+
+      let prefBranch = Services.prefs.getBranch("browser.download.");
+
+      prefBranch.setCharPref("dir", profileDir.path);
+      prefBranch.setBoolPref("useDownloadDir", true);
+      prefBranch.setIntPref("folderList", 2);
+
+      const { Downloads } =
+        ChromeUtils.import("resource://gre/modules/Downloads.jsm");
+      Downloads.getList(Downloads.PUBLIC).then(list => {
+        list.addView({
+          onDownloadAdded(aDownload) {
+            list.removeView(this);
+            aDownload.whenSucceeded().then(() => {
+              list.removeFinished();
+              sendAsyncMessage("navigate", "bug383369step2.html");
+            });
+          },
+        });
+        sendAsyncMessage("navigate", "download.auto");
+      }).catch(console.error);
+    });
+    script.addMessageListener("navigate", function(url) {
+      window.location = url;
+    });
+  }
+
+  async function afterNavigationTest() {}
+
+  testCleanUp = function cleanup() {
+    SpecialPowers.loadChromeScript(function() {
+      const mimeSvc = Cc["@mozilla.org/mime;1"].getService(Ci.nsIMIMEService);
+      let handlerInfo =
+        mimeSvc.getFromTypeAndExtension("application/x-auto-download", "auto");
+
+      const handlerSvc = Cc["@mozilla.org/uriloader/handler-service;1"]
+                           .getService(Ci.nsIHandlerService);
+      handlerSvc.remove(handlerInfo);
+
+      let prefBranch = Services.prefs.getBranch("browser.download.");
+
+      const prefKeys = ["dir", "useDownloadDir", "folderList"];
+      for (let prefKey of prefKeys) {
+        if (prefBranch.prefHasUserValue(prefKey)) {
+          prefBranch.clearUserPref(prefKey);
+        }
+      }
+    });
+  };
+
+  </script>
+</head>
+
+<body>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_bug455367.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug455367.html
new file mode 100644
index 0000000000..d2ad64c454
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug455367.html
@@ -0,0 +1,37 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>No content image doesn't break security</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    SpecialPowers.pushPrefEnv(
+      {"set": [["security.mixed_content.upgrade_display_content", false]]},
+      null);
+    await isSecurityState("broken", "broken");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/redirecttoemptyimage.sjs" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_bug472986.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug472986.html
new file mode 100644
index 0000000000..bd55a600ca
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug472986.html
@@ -0,0 +1,46 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>img.src replace</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  SimpleTest.expectAssertions(0, 4);
+
+  // Clear the default onload assigned to test start because we must
+  // wait for replaced image to load and only after that test the security state
+  var onLoadFunction = window.onload;
+  window.onload = function()
+  {
+    let img1 = document.getElementById("img1");
+    img1.addEventListener("load", onLoadFunction);
+    img1.src = "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg";
+  };
+
+  async function runTest()
+  {
+    await isSecurityState("secure", "secure");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("secure", "secure after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img id="img1" src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/hugebmp.sjs" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_bug477118.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug477118.html
new file mode 100644
index 0000000000..90932790f0
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug477118.html
@@ -0,0 +1,34 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 477118</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    await isSecurityState("secure", "data <img> doesn't break security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("secure", "still secure after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img src="data:image/png;base64,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" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_bug521461.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug521461.html
new file mode 100644
index 0000000000..59085a5ec4
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_bug521461.html
@@ -0,0 +1,39 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Bug 521461</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+  SimpleTest.requestFlakyTimeout("Timeout in mixedContentTest");
+
+  loadAsInsecure = true;
+
+  async function runTest()
+  {
+    window.location = "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/nocontent.sjs";
+    window.setTimeout(async () => {
+      await isSecurityState("insecure", "location.href doesn't effect the security state");
+      is(document.body.innerHTML, "This is an unsecure page!\n", "Document has not changed content");
+      finish();
+    }, 1000);
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("insecure", "still not secure after navigation");
+    is(document.body.innerHTML, "This is an unsecure page!\n", "Document has not changed content");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>This is an unsecure page!</body></html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_cssBefore1.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_cssBefore1.html
new file mode 100644
index 0000000000..98cee1bb53
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_cssBefore1.html
@@ -0,0 +1,42 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>CSS :before styling 1</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+  <style type="text/css">
+    p:before
+    {
+      content: url(http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg);
+    }
+  </style>
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure content added by :before styling breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <p>
+    There is a moon surface left to this text
+  </p>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_cssContent1.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_cssContent1.html
new file mode 100644
index 0000000000..5c5019ca78
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_cssContent1.html
@@ -0,0 +1,41 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>CSS conent styling 1</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <style type="text/css">
+    p
+    {
+      content: url(http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg);
+    }
+  </style>
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure content added by :before styling breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <p></p>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_cssContent2.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_cssContent2.html
new file mode 100644
index 0000000000..19e5784334
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_cssContent2.html
@@ -0,0 +1,46 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>CSS conent styling 2</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  if (navigator.platform.startsWith("Mac")) {
+    SimpleTest.expectAssertions(0, 1);
+  }
+
+  async function runTest()
+  {
+    await isSecurityState("secure");
+    document.getElementById("para").style.content =
+      "url('http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg')";
+
+    waitForSecurityState("broken", async () =>
+    {
+      await isSecurityState("broken", "insecure content added by styling breaks security");
+      finish();
+    });
+  }
+
+  async function afterNavigationTest()
+  {
+    is(document.getElementById("para").style.content, "");
+    await isSecurityState("secure", "security full after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <p id="para"></p>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_documentWrite1.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_documentWrite1.html
new file mode 100644
index 0000000000..90eca5bcdb
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_documentWrite1.html
@@ -0,0 +1,38 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>document.write('<img src="http://">')</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure <img> written dynamically breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <script class="testbody" type="text/javascript">
+  "use strict";
+  document.write(
+    "<img src='http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg' />");
+  </script>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_documentWrite2.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_documentWrite2.html
new file mode 100644
index 0000000000..e009fd4f54
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_documentWrite2.html
@@ -0,0 +1,40 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>document.write('<iframe src="http://">')</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  hasMixedActiveContent = true;
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure iframe written dynamically breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <script class="testbody" type="text/javascript">
+  "use strict";
+  document.write(
+    "<iframe src='http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html'></iframe>");
+  </script>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_dynDelayedUnsecurePicture.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynDelayedUnsecurePicture.html
new file mode 100644
index 0000000000..514902d047
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynDelayedUnsecurePicture.html
@@ -0,0 +1,47 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>img.src changes to unsecure test</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    await isSecurityState("secure");
+    window.setTimeout(function() {
+      // Don't do this synchronously from onload handler
+      document.getElementById("image1").src =
+        "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg";
+    }, 0);
+
+    waitForSecurityState("broken", async () =>
+    {
+      await isSecurityState("broken", "src='http://...' changed to broken");
+      finish();
+    });
+  }
+
+  async function afterNavigationTest()
+  {
+    is(document.getElementById("image1").src,
+      "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg",
+      "img.src secure again");
+    await isSecurityState("secure", "security full after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img id="image1" src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_dynDelayedUnsecureXHR.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynDelayedUnsecureXHR.html
new file mode 100644
index 0000000000..d9a8cc8af7
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynDelayedUnsecureXHR.html
@@ -0,0 +1,48 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>unsecure XHR test</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  hasMixedActiveContent = true;
+
+  async function runTest()
+  {
+    await isSecurityState("secure");
+    window.setTimeout(async () => {
+      try {
+        let req = new XMLHttpRequest();
+        req.open("GET", "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/alloworigin.sjs", false);
+        req.send(null);
+
+        // Change should be immediate, the request was sent synchronously
+        await isSecurityState("broken", "security broken after insecure XHR");
+      } catch (ex) {
+        ok(false, ex);
+      }
+
+      finish();
+    }, 0);
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("secure", "security full after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecureBackground.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecureBackground.html
new file mode 100644
index 0000000000..fd66b21a64
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecureBackground.html
@@ -0,0 +1,44 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>body.background changes to unsecure test</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  // This test, as is, equals to https://kuix.de/misc/test17/358438.php
+
+  async function runTest()
+  {
+    await isSecurityState("secure");
+    document.body.background =
+      "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg";
+
+    waitForSecurityState("broken", async () => {
+      await isSecurityState("broken", "document.body.background='http://...' changed to broken");
+      finish();
+    });
+  }
+
+  async function afterNavigationTest()
+  {
+    is(document.body.background,
+      "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg",
+      "document backround secure again");
+    await isSecurityState("secure", "secure after re-navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body background="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg">
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecureIframeRedirect.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecureIframeRedirect.html
new file mode 100644
index 0000000000..8934de4b79
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecureIframeRedirect.html
@@ -0,0 +1,44 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>iframe.src changes to unsecure redirect test</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  hasMixedActiveContent = true;
+
+  async function runTest()
+  {
+    await isSecurityState("secure");
+    let self = window;
+    let iframe = document.getElementById("iframe1");
+    iframe.onload = async () => {
+      await self.isSecurityState("broken", "src='redirect to unsecure' changed to broken");
+      self.finish();
+    };
+
+    iframe.src =
+      "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframeunsecredirect.sjs";
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <iframe id="iframe1" src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html"></iframe>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecurePicture.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecurePicture.html
new file mode 100644
index 0000000000..5ef5a28b2c
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecurePicture.html
@@ -0,0 +1,46 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>img.src changes to unsecure test</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+  SimpleTest.requestFlakyTimeout("Timeout in mixedContentTest");
+
+  // This test, as is, equals to https://kuix.de/misc/test17/358438.php
+
+  async function runTest()
+  {
+    await isSecurityState("secure");
+    document.getElementById("image1").src =
+      "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg";
+
+    window.setTimeout(async () => {
+      await isSecurityState("broken", "src='http://...' changed to broken");
+      finish();
+    }, 500);
+  }
+
+  async function afterNavigationTest()
+  {
+    is(document.getElementById("image1").src,
+      "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg",
+      "img.src secure again");
+    await isSecurityState("secure", "security full after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img id="image1" src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecurePicturePreload.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecurePicturePreload.html
new file mode 100644
index 0000000000..d8506e8cc5
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecurePicturePreload.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>img.src changes to unsecure test</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  (new Image()).src =
+    "http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg";
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "(new Image()).src='http://...' changed to broken");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecureRedirect.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecureRedirect.html
new file mode 100644
index 0000000000..a73c7f8619
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_dynUnsecureRedirect.html
@@ -0,0 +1,39 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>img.src changes to unsecure redirect test</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    await isSecurityState("secure");
+    document.getElementById("image1").src =
+      "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/imgunsecredirect.sjs";
+
+    window.setTimeout(async () => {
+      await isSecurityState("broken", "src='redirect to unsecure' changed to broken");
+      finish();
+    }, 500);
+  }
+
+  async function afterNavigationTest()
+  {
+    is(document.getElementById("image1").src,
+      "https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg",
+      "img.src secure again");
+    await isSecurityState("secure", "security full after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img id="image1" src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_innerHtmlDelayedUnsecurePicture.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_innerHtmlDelayedUnsecurePicture.html
new file mode 100644
index 0000000000..45bf140384
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_innerHtmlDelayedUnsecurePicture.html
@@ -0,0 +1,42 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>innerHTML changes to unsecure test</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+  SimpleTest.requestFlakyTimeout("Timeout in mixedContentTest");
+
+  async function runTest()
+  {
+    await isSecurityState("secure");
+
+    window.setTimeout(function () {
+      document.getElementById("buddy").innerHTML =
+        "<img id='image1' src='http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg' />";
+    }, 1);
+
+    waitForSecurityState("broken", async () => {
+      await isSecurityState("broken", "innerHTML loading insecure changed to broken");
+      finish();
+    });
+  }
+
+  async function afterNavigationTest()
+  {
+    is(document.getElementById("buddy").innerHTML, "\n", "innerHTML back to previous");
+    await isSecurityState("secure");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body id="buddy"></body></html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_innerHtmlUnsecurePicture.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_innerHtmlUnsecurePicture.html
new file mode 100644
index 0000000000..d8b3e5f6e0
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_innerHtmlUnsecurePicture.html
@@ -0,0 +1,40 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>innerHTML changes to unsecure test</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+  SimpleTest.requestFlakyTimeout("Timeout in mixedContentTest");
+
+  async function runTest()
+  {
+    await isSecurityState("secure");
+
+    document.getElementById("buddy").innerHTML =
+      "<img id='image1' src='http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg' />";
+
+    window.setTimeout(async () => {
+      await isSecurityState("broken", "innerHTML loading insecure changed to broken");
+      finish();
+    }, 500);
+  }
+
+  async function afterNavigationTest()
+  {
+    is(document.getElementById("buddy").innerHTML, "\n", "innerHTML back to previous");
+    await isSecurityState("secure");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body id="buddy"></body></html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_javascriptPicture.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_javascriptPicture.html
new file mode 100644
index 0000000000..66a28ce74e
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_javascriptPicture.html
@@ -0,0 +1,34 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Secure img load</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    await isSecurityState("secure", "javascript: <img> should not break security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("secure", "Still secure after renavigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img src="javascript:'Random data'" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_secureAll.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_secureAll.html
new file mode 100644
index 0000000000..efd754dd58
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_secureAll.html
@@ -0,0 +1,42 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>All secure anti-regression check</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <link rel="stylesheet" type="text/css"
+    href="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/somestyle.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  // Navigation test goes over an insecure page, test state leak
+  navigateToInsecure = true;
+
+  async function runTest()
+  {
+    await isSecurityState("secure", "insecure <img> load breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("secure", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg" />
+  <img src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/imgsecredirect.sjs" />
+  <iframe src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframesecredirect.sjs" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_securePicture.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_securePicture.html
new file mode 100644
index 0000000000..961713a2da
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_securePicture.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Secure img load</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  loadAsInsecure = true;
+
+  async function runTest()
+  {
+    await isSecurityState("insecure", "left insecure");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("insecure", "left insecure after renavigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureBackground.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureBackground.html
new file mode 100644
index 0000000000..02fdb29d41
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureBackground.html
@@ -0,0 +1,35 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>background unsecure test</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  // This test, as is, equals to https://kuix.de/misc/test17/358438.php
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "security broken");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body background="http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg">
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureCSS.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureCSS.html
new file mode 100644
index 0000000000..c775347e72
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureCSS.html
@@ -0,0 +1,38 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Unsecure css load</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <link rel="stylesheet" type="text/css"
+    href="http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/somestyle.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  hasMixedActiveContent = true;
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure <img> load breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframe.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframe.html
new file mode 100644
index 0000000000..291ce3747e
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframe.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Unsecure iframe load</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  hasMixedActiveContent = true;
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure <iframe> load breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <iframe src="http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe.html"></iframe>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframe2.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframe2.html
new file mode 100644
index 0000000000..8f49ecda51
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframe2.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Unsecure iframe load</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  hasMixedActiveContent = true;
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure <iframe> load breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <iframe src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframe2.html"></iframe>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframeMetaRedirect.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframeMetaRedirect.html
new file mode 100644
index 0000000000..4eebbf5b22
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframeMetaRedirect.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Unsecure redirect iframe load</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    window.setTimeout(async () =>
+    {
+      await isSecurityState("broken", "insecure meta-tag <iframe> load breaks security");
+      finish();
+    }, 500);
+  }
+
+  async function afterNavigationTest()
+  {
+    window.setTimeout(async () =>
+    {
+      await isSecurityState("broken", "security still broken after navigation");
+      finish();
+    }, 500);
+  }
+
+  </script>
+</head>
+
+<body>
+  <iframe src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframeMetaRedirect.html"></iframe>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframeRedirect.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframeRedirect.html
new file mode 100644
index 0000000000..12a4233494
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureIframeRedirect.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Unsecure redirect iframe load</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  hasMixedActiveContent = true;
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure <iframe> load breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <iframe src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/iframeunsecredirect.sjs"></iframe>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecurePicture.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecurePicture.html
new file mode 100644
index 0000000000..3c19811db9
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecurePicture.html
@@ -0,0 +1,34 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Unsecure img load</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure <img> load breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img src="http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecurePictureDup.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecurePictureDup.html
new file mode 100644
index 0000000000..81ed58ffde
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecurePictureDup.html
@@ -0,0 +1,20 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Unsecure img load in two windows</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  openTwoWindows = true;
+  testPage = "unsecurePictureDup.html";
+
+  </script>
+</head>
+
+<body>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecurePictureInIframe.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecurePictureInIframe.html
new file mode 100644
index 0000000000..21bcf5f810
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecurePictureInIframe.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Unsecure img in iframe load</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  hasMixedActiveContent = true;
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure <img> in an <iframe> load breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <iframe src="http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/unsecureIframe.html"></iframe>
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureRedirect.html b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureRedirect.html
new file mode 100644
index 0000000000..82611ff3fe
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/test_unsecureRedirect.html
@@ -0,0 +1,36 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Redirect from secure to unsecure img</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  hasMixedActiveContent = true;
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure <img> load breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img src="https://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/imgunsecredirect.sjs" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/unsecureIframe.html b/security/manager/ssl/tests/mochitest/mixedcontent/unsecureIframe.html
new file mode 100644
index 0000000000..2282677418
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/unsecureIframe.html
@@ -0,0 +1,9 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+</head>
+
+<body>
+  <img src="http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/moonsurface.jpg" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/mixedcontent/unsecurePictureDup.html b/security/manager/ssl/tests/mochitest/mixedcontent/unsecurePictureDup.html
new file mode 100644
index 0000000000..7ce3701620
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/mixedcontent/unsecurePictureDup.html
@@ -0,0 +1,34 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Unsecure img load in two windows</title>
+  <script type="text/javascript" src="/MochiKit/Base.js"></script>
+  <script type="text/javascript" src="/MochiKit/DOM.js"></script>
+  <script type="text/javascript" src="/MochiKit/Style.js"></script>
+  <script type="text/javascript" src="/MochiKit/Signal.js"></script>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <script type="text/javascript" src="mixedContentTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+
+  <script class="testbody" type="text/javascript">
+  "use strict";
+
+  async function runTest()
+  {
+    await isSecurityState("broken", "insecure <img> load breaks security");
+    finish();
+  }
+
+  async function afterNavigationTest()
+  {
+    await isSecurityState("broken", "security still broken after navigation");
+    finish();
+  }
+
+  </script>
+</head>
+
+<body>
+  <img src="http://example.com/tests/security/manager/ssl/tests/mochitest/mixedcontent/hugebmp.sjs" />
+</body>
+</html>
diff --git a/security/manager/ssl/tests/mochitest/moz.build b/security/manager/ssl/tests/mochitest/moz.build
new file mode 100644
index 0000000000..ddb344c83c
--- /dev/null
+++ b/security/manager/ssl/tests/mochitest/moz.build
@@ -0,0 +1,10 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+TEST_DIRS += [
+    "browser",
+    "mixedcontent",
+]