Adding upstream version 110.0.1.upstream/110.0.1upstream

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

44 files changed, 6712 insertions, 0 deletions

diff --git a/extensions/permissions/test/PermissionTestUtils.jsm b/extensions/permissions/test/PermissionTestUtils.jsm
new file mode 100644
index 0000000000..5d36c31a4b
--- /dev/null
+++ b/extensions/permissions/test/PermissionTestUtils.jsm
@@ -0,0 +1,108 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/*
+ * Utility module for tests to access the PermissionManager
+ * with uri or origin string parameters.
+ */
+
+"use strict";
+
+let pm = Services.perms;
+
+let secMan = Services.scriptSecurityManager;
+
+const EXPORTED_SYMBOLS = ["PermissionTestUtils"];
+
+/**
+ * Convert origin string or uri to principal.
+ * If passed an nsIPrincipal it will be returned without conversion.
+ * @param {Ci.nsIPrincipal|Ci.nsIURI|string} subject - Subject to convert to principal
+ * @returns {Ci.nsIPrincipal} Principal created from subject
+ */
+function convertToPrincipal(subject) {
+  if (subject instanceof Ci.nsIPrincipal) {
+    return subject;
+  }
+  if (typeof subject === "string") {
+    return secMan.createContentPrincipalFromOrigin(subject);
+  }
+  if (subject === null || subject instanceof Ci.nsIURI) {
+    return secMan.createContentPrincipal(subject, {});
+  }
+  throw new Error(
+    "subject parameter must be an nsIURI an origin string or a principal."
+  );
+}
+
+let PermissionTestUtils = {
+  /**
+   * Add permission information for a given subject.
+   * Subject can be a principal, uri or origin string.
+   * @see nsIPermissionManager for documentation
+   *
+   * @param {Ci.nsIPrincipal|Ci.nsIURI|string} subject
+   * @param {*} args
+   */
+  add(subject, ...args) {
+    return pm.addFromPrincipal(convertToPrincipal(subject), ...args);
+  },
+  /**
+   * Get all custom permissions for a given subject.
+   * Subject can be a principal, uri or origin string.
+   * @see nsIPermissionManager for documentation
+   *
+   * @param {Ci.nsIPrincipal|Ci.nsIURI|string} subject
+   * @param {*} args
+   */
+  getAll(subject, ...args) {
+    return pm.getAllForPrincipal(convertToPrincipal(subject), ...args);
+  },
+  /**
+   * Remove permission information for a given subject and permission type
+   * Subject can be a principal, uri or origin string.
+   * @see nsIPermissionManager for documentation
+   *
+   * @param {Ci.nsIPrincipal|Ci.nsIURI|string} subject
+   * @param {*} args
+   */
+  remove(subject, ...args) {
+    return pm.removeFromPrincipal(convertToPrincipal(subject), ...args);
+  },
+  /**
+   * Test whether a website has permission to perform the given action.
+   * Subject can be a principal, uri or origin string.
+   * @see nsIPermissionManager for documentation
+   *
+   * @param {Ci.nsIPrincipal|Ci.nsIURI|string} subject
+   * @param {*} args
+   */
+  testPermission(subject, ...args) {
+    return pm.testPermissionFromPrincipal(convertToPrincipal(subject), ...args);
+  },
+  /**
+   * Test whether a website has permission to perform the given action.
+   * Subject can be a principal, uri or origin string.
+   * @see nsIPermissionManager for documentation
+   *
+   * @param {Ci.nsIPrincipal|Ci.nsIURI|string} subject
+   * @param {*} args
+   */
+  testExactPermission(subject, ...args) {
+    return pm.testExactPermissionFromPrincipal(
+      convertToPrincipal(subject),
+      ...args
+    );
+  },
+  /**
+   * Get the permission object associated with the given subject and action.
+   * Subject can be a principal, uri or origin string.
+   * @see nsIPermissionManager for documentation
+   *
+   * @param {Ci.nsIPrincipal|Ci.nsIURI|string} subject
+   * @param {*} args
+   */
+  getPermissionObject(subject, type, exactHost = false) {
+    return pm.getPermissionObject(convertToPrincipal(subject), type, exactHost);
+  },
+};
diff --git a/extensions/permissions/test/browser.ini b/extensions/permissions/test/browser.ini
new file mode 100644
index 0000000000..b71b10dfaf
--- /dev/null
+++ b/extensions/permissions/test/browser.ini
@@ -0,0 +1,8 @@
+[DEFAULT]
+
+[browser_permmgr_sync.js]
+# The browser_permmgr_sync test  runs code
+# paths which would hit the debug only assertion in
+# PermissionManager::PermissionKey::CreateFromPrincipal.
+skip-if = debug
+[browser_permmgr_viewsrc.js]
diff --git a/extensions/permissions/test/browser_permmgr_sync.js b/extensions/permissions/test/browser_permmgr_sync.js
new file mode 100644
index 0000000000..d4ada33394
--- /dev/null
+++ b/extensions/permissions/test/browser_permmgr_sync.js
@@ -0,0 +1,449 @@
+function addPerm(aOrigin, aName) {
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    aOrigin
+  );
+  Services.perms.addFromPrincipal(
+    principal,
+    aName,
+    Services.perms.ALLOW_ACTION
+  );
+}
+
+add_task(async function() {
+  // Make sure that we get a new process for the tab which we create. This is
+  // important, because we want to assert information about the initial state
+  // of the local permissions cache.
+
+  addPerm("http://example.com", "perm1");
+  addPerm("http://foo.bar.example.com", "perm2");
+  addPerm("about:home", "perm3");
+  addPerm("https://example.com", "perm4");
+  // NOTE: This permission is a preload permission, so it should be available in
+  // the content process from startup.
+  addPerm("https://somerandomwebsite.com", "cookie");
+
+  await BrowserTestUtils.withNewTab(
+    { gBrowser, url: "about:blank", forceNewProcess: true },
+    async function(aBrowser) {
+      await SpecialPowers.spawn(aBrowser, [], async function() {
+        // Before the load http URIs shouldn't have been sent down yet
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://example.com"
+            ),
+            "perm1"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "perm1-1"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://foo.bar.example.com"
+            ),
+            "perm2"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "perm2-1"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "about:home"
+            ),
+            "perm3"
+          ),
+          Services.perms.ALLOW_ACTION,
+          "perm3-1"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "https://example.com"
+            ),
+            "perm4"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "perm4-1"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "https://somerandomwebsite.com"
+            ),
+            "cookie"
+          ),
+          Services.perms.ALLOW_ACTION,
+          "cookie-1"
+        );
+
+        let iframe = content.document.createElement("iframe");
+
+        // Perform a load of example.com
+        await new Promise(resolve => {
+          iframe.setAttribute("src", "http://example.com");
+          iframe.onload = resolve;
+          content.document.body.appendChild(iframe);
+        });
+
+        // After the load finishes, the iframe process should know about example.com, but not foo.bar.example.com
+        await content.SpecialPowers.spawn(iframe, [], async function() {
+          is(
+            Services.perms.testPermissionFromPrincipal(
+              Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+                "http://example.com"
+              ),
+              "perm1"
+            ),
+            Services.perms.ALLOW_ACTION,
+            "perm1-2"
+          );
+
+          is(
+            Services.perms.testPermissionFromPrincipal(
+              Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+                "http://foo.bar.example.com"
+              ),
+              "perm2"
+            ),
+            Services.perms.UNKNOWN_ACTION,
+            "perm2-2"
+          );
+
+          is(
+            Services.perms.testPermissionFromPrincipal(
+              Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+                "about:home"
+              ),
+              "perm3"
+            ),
+            Services.perms.ALLOW_ACTION,
+            "perm3-2"
+          );
+
+          is(
+            Services.perms.testPermissionFromPrincipal(
+              Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+                "https://example.com"
+              ),
+              "perm4"
+            ),
+            Services.perms.UNKNOWN_ACTION,
+            "perm4-2"
+          );
+
+          is(
+            Services.perms.testPermissionFromPrincipal(
+              Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+                "https://somerandomwebsite.com"
+              ),
+              "cookie"
+            ),
+            Services.perms.ALLOW_ACTION,
+            "cookie-2"
+          );
+        });
+
+        // In Fission only, the parent process should have no knowledge about the child
+        // process permissions
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://example.com"
+            ),
+            "perm1"
+          ),
+          SpecialPowers.useRemoteSubframes
+            ? Services.perms.UNKNOWN_ACTION
+            : Services.perms.ALLOW_ACTION,
+          "perm1-3"
+        );
+
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://foo.bar.example.com"
+            ),
+            "perm2"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "perm2-3"
+        );
+
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "https://example.com"
+            ),
+            "perm4"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "perm4-3"
+        );
+      });
+
+      addPerm("http://example.com", "newperm1");
+      addPerm("http://foo.bar.example.com", "newperm2");
+      addPerm("about:home", "newperm3");
+      addPerm("https://example.com", "newperm4");
+      addPerm("https://someotherrandomwebsite.com", "cookie");
+
+      await SpecialPowers.spawn(aBrowser, [], async function() {
+        // The new permissions should be available, but only for
+        // http://example.com (without Fission), and about:home.
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://example.com"
+            ),
+            "perm1"
+          ),
+          SpecialPowers.useRemoteSubframes
+            ? Services.perms.UNKNOWN_ACTION
+            : Services.perms.ALLOW_ACTION,
+          "perm1-4"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://example.com"
+            ),
+            "newperm1"
+          ),
+          SpecialPowers.useRemoteSubframes
+            ? Services.perms.UNKNOWN_ACTION
+            : Services.perms.ALLOW_ACTION,
+          "newperm1-1"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://foo.bar.example.com"
+            ),
+            "perm2"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "perm2-4"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://foo.bar.example.com"
+            ),
+            "newperm2"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "newperm2-1"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "about:home"
+            ),
+            "perm3"
+          ),
+          Services.perms.ALLOW_ACTION,
+          "perm3-3"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "about:home"
+            ),
+            "newperm3"
+          ),
+          Services.perms.ALLOW_ACTION,
+          "newperm3-1"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "https://example.com"
+            ),
+            "perm4"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "perm4-4"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "https://example.com"
+            ),
+            "newperm4"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "newperm4-1"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "https://somerandomwebsite.com"
+            ),
+            "cookie"
+          ),
+          Services.perms.ALLOW_ACTION,
+          "cookie-3"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "https://someotherrandomwebsite.com"
+            ),
+            "cookie"
+          ),
+          Services.perms.ALLOW_ACTION,
+          "othercookie-3"
+        );
+
+        let iframe = content.document.createElement("iframe");
+        // Loading a subdomain now, on https
+        await new Promise(resolve => {
+          iframe.setAttribute("src", "https://sub1.test1.example.com");
+          iframe.onload = resolve;
+          content.document.body.appendChild(iframe);
+        });
+
+        // After the load finishes, the iframe process should not know about
+        // the permissions of its base domain.
+        await content.SpecialPowers.spawn(iframe, [], async function() {
+          is(
+            Services.perms.testPermissionFromPrincipal(
+              Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+                "https://example.com"
+              ),
+              "perm4"
+            ),
+            Services.perms.ALLOW_ACTION,
+            "perm4-5"
+          );
+
+          // In Fission not across schemes, though.
+          is(
+            Services.perms.testPermissionFromPrincipal(
+              Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+                "http://example.com"
+              ),
+              "perm1"
+            ),
+            SpecialPowers.useRemoteSubframes
+              ? Services.perms.UNKNOWN_ACTION
+              : Services.perms.ALLOW_ACTION,
+            "perm1-5"
+          );
+          is(
+            Services.perms.testPermissionFromPrincipal(
+              Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+                "http://example.com"
+              ),
+              "newperm1"
+            ),
+            SpecialPowers.useRemoteSubframes
+              ? Services.perms.UNKNOWN_ACTION
+              : Services.perms.ALLOW_ACTION,
+            "newperm1-2"
+          );
+        });
+
+        // The parent process should still have no permission under Fission.
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://example.com"
+            ),
+            "perm1"
+          ),
+          SpecialPowers.useRemoteSubframes
+            ? Services.perms.UNKNOWN_ACTION
+            : Services.perms.ALLOW_ACTION,
+          "perm1-4"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://example.com"
+            ),
+            "newperm1"
+          ),
+          SpecialPowers.useRemoteSubframes
+            ? Services.perms.UNKNOWN_ACTION
+            : Services.perms.ALLOW_ACTION,
+          "newperm1-3"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "https://example.com"
+            ),
+            "perm4"
+          ),
+          SpecialPowers.useRemoteSubframes
+            ? Services.perms.UNKNOWN_ACTION
+            : Services.perms.ALLOW_ACTION,
+          "perm4-6"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://foo.bar.example.com"
+            ),
+            "perm2"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "perm2-5"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "http://foo.bar.example.com"
+            ),
+            "newperm2"
+          ),
+          Services.perms.UNKNOWN_ACTION,
+          "newperm2-2"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "about:home"
+            ),
+            "perm3"
+          ),
+          Services.perms.ALLOW_ACTION,
+          "perm3-4"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "about:home"
+            ),
+            "newperm3"
+          ),
+          Services.perms.ALLOW_ACTION,
+          "newperm3-2"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "https://somerandomwebsite.com"
+            ),
+            "cookie"
+          ),
+          Services.perms.ALLOW_ACTION,
+          "cookie-4"
+        );
+        is(
+          Services.perms.testPermissionFromPrincipal(
+            Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+              "https://someotherrandomwebsite.com"
+            ),
+            "cookie"
+          ),
+          Services.perms.ALLOW_ACTION,
+          "othercookie-4"
+        );
+      });
+    }
+  );
+});
diff --git a/extensions/permissions/test/browser_permmgr_viewsrc.js b/extensions/permissions/test/browser_permmgr_viewsrc.js
new file mode 100644
index 0000000000..ee095c56fb
--- /dev/null
+++ b/extensions/permissions/test/browser_permmgr_viewsrc.js
@@ -0,0 +1,27 @@
+add_task(async function() {
+  // Add a permission for example.com, start a new content process, and make
+  // sure that the permission has been sent down.
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "https://example.com"
+  );
+  Services.perms.addFromPrincipal(
+    principal,
+    "viewsourceTestingPerm",
+    Services.perms.ALLOW_ACTION
+  );
+
+  let tab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    "view-source:https://example.com",
+    /* waitForLoad */ true,
+    /* waitForStateStop */ false,
+    /* forceNewProcess */ true
+  );
+  await SpecialPowers.spawn(tab.linkedBrowser, [principal], async function(p) {
+    is(
+      Services.perms.testPermissionFromPrincipal(p, "viewsourceTestingPerm"),
+      Services.perms.ALLOW_ACTION
+    );
+  });
+  BrowserTestUtils.removeTab(tab);
+});
diff --git a/extensions/permissions/test/gtest/PermissionManagerTest.cpp b/extensions/permissions/test/gtest/PermissionManagerTest.cpp
new file mode 100644
index 0000000000..b69a7d46f2
--- /dev/null
+++ b/extensions/permissions/test/gtest/PermissionManagerTest.cpp
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#include "nsNetUtil.h"
+#include "mozilla/BasePrincipal.h"
+#include "mozilla/OriginAttributes.h"
+#include "mozilla/PermissionManager.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/Unused.h"
+#include "gtest/gtest.h"
+#include "gtest/MozGTestBench.h"
+
+using namespace mozilla;
+
+class PermissionManagerTester : public ::testing::Test {
+ protected:
+  PermissionManagerTester()
+      : mNonExistentType("permissionTypeThatIsGuaranteedToNeverExist"_ns) {}
+  void SetUp() override {
+    mPermissionManager = PermissionManager::GetInstance();
+    nsCOMPtr<nsIURI> uri;
+    nsresult rv =
+        NS_NewURI(getter_AddRefs(uri),
+                  "https://test.origin.with.subdomains.example.com"_ns);
+    MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
+    mPrincipal =
+        mozilla::BasePrincipal::CreateContentPrincipal(uri, OriginAttributes());
+  }
+
+  void TearDown() override {
+    mPermissionManager = nullptr;
+    mPrincipal = nullptr;
+  }
+
+  static const unsigned kNumIterations = 100000;
+
+  nsLiteralCString mNonExistentType;
+  RefPtr<PermissionManager> mPermissionManager;
+  nsCOMPtr<nsIPrincipal> mPrincipal;
+};
+
+MOZ_GTEST_BENCH_F(PermissionManagerTester,
+                  TestNonExistentPermissionFromPrincipal, [this] {
+                    for (unsigned i = 0; i < kNumIterations; ++i) {
+                      uint32_t result = 0;
+                      Unused << mPermissionManager->TestPermissionFromPrincipal(
+                          mPrincipal, mNonExistentType, &result);
+                    }
+                  });
diff --git a/extensions/permissions/test/gtest/moz.build b/extensions/permissions/test/gtest/moz.build
new file mode 100644
index 0000000000..132c384597
--- /dev/null
+++ b/extensions/permissions/test/gtest/moz.build
@@ -0,0 +1,11 @@
+# -*- 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/.
+
+UNIFIED_SOURCES += [
+    "PermissionManagerTest.cpp",
+]
+
+FINAL_LIBRARY = "xul-gtest"
diff --git a/extensions/permissions/test/moz.build b/extensions/permissions/test/moz.build
new file mode 100644
index 0000000000..5c68459575
--- /dev/null
+++ b/extensions/permissions/test/moz.build
@@ -0,0 +1,15 @@
+# -*- 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 += [
+    "gtest",
+]
+
+XPCSHELL_TESTS_MANIFESTS += [
+    "unit/xpcshell.ini",
+]
+
+BROWSER_CHROME_MANIFESTS += ["browser.ini"]
diff --git a/extensions/permissions/test/unit/head.js b/extensions/permissions/test/unit/head.js
new file mode 100644
index 0000000000..48ef75c81e
--- /dev/null
+++ b/extensions/permissions/test/unit/head.js
@@ -0,0 +1,26 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+var { NetUtil } = ChromeUtils.import("resource://gre/modules/NetUtil.jsm");
+
+// Helper to step a generator function and catch a StopIteration exception.
+function do_run_generator(generator) {
+  try {
+    generator.next();
+  } catch (e) {
+    do_throw("caught exception " + e, Components.stack.caller);
+  }
+}
+
+// Helper to finish a generator function test.
+function do_finish_generator_test(generator) {
+  executeSoon(function() {
+    generator.return();
+    do_test_finished();
+  });
+}
+
+function do_count_array(all) {
+  return all.length;
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_cleardata.js b/extensions/permissions/test/unit/test_permmanager_cleardata.js
new file mode 100644
index 0000000000..2bd4d11319
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_cleardata.js
@@ -0,0 +1,93 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var pm;
+
+// Create a principal based on the { origin, originAttributes }.
+function createPrincipal(aOrigin, aOriginAttributes) {
+  return Services.scriptSecurityManager.createContentPrincipal(
+    NetUtil.newURI(aOrigin),
+    aOriginAttributes
+  );
+}
+
+function getData(aPattern) {
+  return JSON.stringify(aPattern);
+}
+
+// Use aEntries to create principals, add permissions to them and check that they have them.
+// Then, it is removing origin attributes with the given aData and check if the permissions
+// of principals[i] matches the permission in aResults[i].
+function test(aEntries, aData, aResults) {
+  let principals = [];
+
+  for (const entry of aEntries) {
+    principals.push(createPrincipal(entry.origin, entry.originAttributes));
+  }
+
+  for (const principal of principals) {
+    Assert.equal(
+      pm.testPermissionFromPrincipal(principal, "test/clear-origin"),
+      pm.UNKNOWN_ACTION
+    );
+    pm.addFromPrincipal(
+      principal,
+      "test/clear-origin",
+      pm.ALLOW_ACTION,
+      pm.EXPIRE_NEVER,
+      0
+    );
+    Assert.equal(
+      pm.testPermissionFromPrincipal(principal, "test/clear-origin"),
+      pm.ALLOW_ACTION
+    );
+  }
+
+  // `clear-origin-attributes-data` notification is removed from permission
+  // manager
+  pm.removePermissionsWithAttributes(aData);
+
+  var length = aEntries.length;
+  for (let i = 0; i < length; ++i) {
+    Assert.equal(
+      pm.testPermissionFromPrincipal(principals[i], "test/clear-origin"),
+      aResults[i]
+    );
+
+    // Remove allowed actions.
+    if (aResults[i] == pm.ALLOW_ACTION) {
+      pm.removeFromPrincipal(principals[i], "test/clear-origin");
+    }
+  }
+}
+
+function run_test() {
+  do_get_profile();
+
+  pm = Services.perms;
+
+  let entries = [
+    { origin: "http://example.com", originAttributes: {} },
+    {
+      origin: "http://example.com",
+      originAttributes: { inIsolatedMozBrowser: true },
+    },
+  ];
+
+  // In that case, all permissions should be removed.
+  test(entries, getData({}), [
+    pm.UNKNOWN_ACTION,
+    pm.UNKNOWN_ACTION,
+    pm.ALLOW_ACTION,
+    pm.ALLOW_ACTION,
+  ]);
+
+  // In that case, only the permissions related to a browserElement should be removed.
+  // All the other permissions should stay.
+  test(entries, getData({ inIsolatedMozBrowser: true }), [
+    pm.ALLOW_ACTION,
+    pm.UNKNOWN_ACTION,
+    pm.ALLOW_ACTION,
+    pm.ALLOW_ACTION,
+  ]);
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_default_pref.js b/extensions/permissions/test/unit/test_permmanager_default_pref.js
new file mode 100644
index 0000000000..b2bae241f0
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_default_pref.js
@@ -0,0 +1,75 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "https://example.org"
+  );
+
+  // Check that without a pref the default return value is UNKNOWN.
+  Assert.equal(
+    Services.perms.testPermissionFromPrincipal(principal, "camera"),
+    Services.perms.UNKNOWN_ACTION
+  );
+
+  // Check that the default return value changed after setting the pref.
+  Services.prefs.setIntPref(
+    "permissions.default.camera",
+    Services.perms.DENY_ACTION
+  );
+  Assert.equal(
+    Services.perms.testPermissionFromPrincipal(principal, "camera"),
+    Services.perms.DENY_ACTION
+  );
+
+  // Check that functions that do not directly return a permission value still
+  // consider the permission as being set to its default.
+  Assert.equal(
+    null,
+    Services.perms.getPermissionObject(principal, "camera", false)
+  );
+
+  // Check that other permissions still return UNKNOWN.
+  Assert.equal(
+    Services.perms.testPermissionFromPrincipal(principal, "geo"),
+    Services.perms.UNKNOWN_ACTION
+  );
+
+  // Check that the default return value changed after changing the pref.
+  Services.prefs.setIntPref(
+    "permissions.default.camera",
+    Services.perms.ALLOW_ACTION
+  );
+  Assert.equal(
+    Services.perms.testPermissionFromPrincipal(principal, "camera"),
+    Services.perms.ALLOW_ACTION
+  );
+
+  // Check that the preference is ignored if there is a value.
+  Services.perms.addFromPrincipal(
+    principal,
+    "camera",
+    Services.perms.DENY_ACTION
+  );
+  Assert.equal(
+    Services.perms.testPermissionFromPrincipal(principal, "camera"),
+    Services.perms.DENY_ACTION
+  );
+  Assert.ok(
+    Services.perms.getPermissionObject(principal, "camera", false) != null
+  );
+
+  // The preference should be honored again, after resetting the permissions.
+  Services.perms.removeAll();
+  Assert.equal(
+    Services.perms.testPermissionFromPrincipal(principal, "camera"),
+    Services.perms.ALLOW_ACTION
+  );
+
+  // Should be UNKNOWN after clearing the pref.
+  Services.prefs.clearUserPref("permissions.default.camera");
+  Assert.equal(
+    Services.perms.testPermissionFromPrincipal(principal, "camera"),
+    Services.perms.UNKNOWN_ACTION
+  );
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_defaults.js b/extensions/permissions/test/unit/test_permmanager_defaults.js
new file mode 100644
index 0000000000..5a817a813b
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_defaults.js
@@ -0,0 +1,489 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// The origin we use in most of the tests.
+const TEST_ORIGIN = NetUtil.newURI("http://example.org");
+const TEST_ORIGIN_HTTPS = NetUtil.newURI("https://example.org");
+const TEST_ORIGIN_2 = NetUtil.newURI("http://example.com");
+const TEST_ORIGIN_3 = NetUtil.newURI("https://example2.com:8080");
+const TEST_PERMISSION = "test-permission";
+
+function promiseTimeout(delay) {
+  return new Promise(resolve => {
+    do_timeout(delay, resolve);
+  });
+}
+
+add_task(async function do_test() {
+  // setup a profile.
+  do_get_profile();
+
+  // create a file in the temp directory with the defaults.
+  let file = do_get_tempdir();
+  file.append("test_default_permissions");
+
+  // write our test data to it.
+  let ostream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(
+    Ci.nsIFileOutputStream
+  );
+  ostream.init(file, -1, 0o666, 0);
+  let conv = Cc["@mozilla.org/intl/converter-output-stream;1"].createInstance(
+    Ci.nsIConverterOutputStream
+  );
+  conv.init(ostream, "UTF-8");
+
+  conv.writeString("# this is a comment\n");
+  conv.writeString("\n"); // a blank line!
+  conv.writeString(
+    "host\t" + TEST_PERMISSION + "\t1\t" + TEST_ORIGIN.host + "\n"
+  );
+  conv.writeString(
+    "host\t" + TEST_PERMISSION + "\t1\t" + TEST_ORIGIN_2.host + "\n"
+  );
+  conv.writeString(
+    "origin\t" + TEST_PERMISSION + "\t1\t" + TEST_ORIGIN_3.spec + "\n"
+  );
+  conv.writeString(
+    "origin\t" + TEST_PERMISSION + "\t1\t" + TEST_ORIGIN.spec + "^inBrowser=1\n"
+  );
+  ostream.close();
+
+  // Set the preference used by the permission manager so the file is read.
+  Services.prefs.setCharPref(
+    "permissions.manager.defaultsUrl",
+    "file://" + file.path
+  );
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  let permIsolateUserContext = Services.prefs.getBoolPref(
+    "permissions.isolateBy.userContext"
+  );
+  let permIsolatePrivateBrowsing = Services.prefs.getBoolPref(
+    "permissions.isolateBy.privateBrowsing"
+  );
+
+  let pm = Services.perms;
+
+  // test the default permission was applied.
+  let principal = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_ORIGIN,
+    {}
+  );
+  let principalHttps = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_ORIGIN_HTTPS,
+    {}
+  );
+  let principal2 = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_ORIGIN_2,
+    {}
+  );
+  let principal3 = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_ORIGIN_3,
+    {}
+  );
+
+  let attrs = { inIsolatedMozBrowser: true };
+  let principal4 = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_ORIGIN,
+    attrs
+  );
+  let principal5 = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_ORIGIN_3,
+    attrs
+  );
+
+  attrs = { userContextId: 1 };
+  let principal1UserContext = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_ORIGIN,
+    attrs
+  );
+  attrs = { privateBrowsingId: 1 };
+  let principal1PrivateBrowsing = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_ORIGIN,
+    attrs
+  );
+  attrs = { firstPartyDomain: "cnn.com" };
+  let principal7 = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_ORIGIN,
+    attrs
+  );
+  attrs = { userContextId: 1, firstPartyDomain: "cnn.com" };
+  let principal8 = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_ORIGIN,
+    attrs
+  );
+
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principalHttps, TEST_PERMISSION)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal3, TEST_PERMISSION)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal4, TEST_PERMISSION)
+  );
+  // Depending on the prefs there are two scenarios here:
+  // 1. We isolate by private browsing: The permission mgr should
+  //    add default permissions for these principals too.
+  // 2. We don't isolate by private browsing: The permission
+  //    check will strip the private browsing origin attribute.
+  //    In this case the used internally for the lookup is always principal1.
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal1PrivateBrowsing, TEST_PERMISSION)
+  );
+
+  // Didn't add
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal5, TEST_PERMISSION)
+  );
+
+  // the permission should exist in the enumerator.
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    findCapabilityViaEnum(TEST_ORIGIN)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    findCapabilityViaEnum(TEST_ORIGIN_3)
+  );
+
+  // but should not have been written to the DB
+  await checkCapabilityViaDB(null);
+
+  // remove all should not throw and the default should remain
+  pm.removeAll();
+
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal3, TEST_PERMISSION)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal4, TEST_PERMISSION)
+  );
+  // Default permission should have also been added for private browsing.
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal1PrivateBrowsing, TEST_PERMISSION)
+  );
+  // make sure principals with userContextId use the same / different permissions
+  // depending on pref state
+  Assert.equal(
+    permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal1UserContext, TEST_PERMISSION)
+  );
+  // make sure principals with a firstPartyDomain use different permissions
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal7, TEST_PERMISSION)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal8, TEST_PERMISSION)
+  );
+
+  // Asking for this permission to be removed should result in that permission
+  // having UNKNOWN_ACTION
+  pm.removeFromPrincipal(principal, TEST_PERMISSION);
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+  // make sure principals with userContextId use the correct permissions
+  // (Should be unknown with and without OA stripping )
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal1UserContext, TEST_PERMISSION)
+  );
+  // If we isolate by private browsing, the permission should still be present
+  // for the private browsing principal.
+  Assert.equal(
+    permIsolatePrivateBrowsing
+      ? Ci.nsIPermissionManager.ALLOW_ACTION
+      : Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal1PrivateBrowsing, TEST_PERMISSION)
+  );
+  // and we should have this UNKNOWN_ACTION reflected in the DB
+  await checkCapabilityViaDB(Ci.nsIPermissionManager.UNKNOWN_ACTION);
+  // but the permission should *not* appear in the enumerator.
+  Assert.equal(null, findCapabilityViaEnum());
+
+  // and a subsequent RemoveAll should restore the default
+  pm.removeAll();
+
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+  // Make sure default imports work for private browsing after removeAll.
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal1PrivateBrowsing, TEST_PERMISSION)
+  );
+  // make sure principals with userContextId share permissions depending on pref state
+  Assert.equal(
+    permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal1UserContext, TEST_PERMISSION)
+  );
+  // make sure principals with firstPartyDomain use different permissions
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal7, TEST_PERMISSION)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal8, TEST_PERMISSION)
+  );
+  // and allow it to again be seen in the enumerator.
+  Assert.equal(Ci.nsIPermissionManager.ALLOW_ACTION, findCapabilityViaEnum());
+
+  // now explicitly add a permission - this too should override the default.
+  pm.addFromPrincipal(
+    principal,
+    TEST_PERMISSION,
+    Ci.nsIPermissionManager.DENY_ACTION
+  );
+
+  // it should be reflected in a permission check, in the enumerator and the DB
+  Assert.equal(
+    Ci.nsIPermissionManager.DENY_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+  // make sure principals with userContextId use the same / different permissions
+  // depending on pref state
+  Assert.equal(
+    permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.DENY_ACTION,
+    pm.testPermissionFromPrincipal(principal1UserContext, TEST_PERMISSION)
+  );
+  // If we isolate by private browsing, we should still have the default perm
+  // for the private browsing principal.
+  Assert.equal(
+    permIsolatePrivateBrowsing
+      ? Ci.nsIPermissionManager.ALLOW_ACTION
+      : Ci.nsIPermissionManager.DENY_ACTION,
+    pm.testPermissionFromPrincipal(principal1PrivateBrowsing, TEST_PERMISSION)
+  );
+  // make sure principals with firstPartyDomain use different permissions
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal7, TEST_PERMISSION)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal8, TEST_PERMISSION)
+  );
+  Assert.equal(Ci.nsIPermissionManager.DENY_ACTION, findCapabilityViaEnum());
+  await checkCapabilityViaDB(Ci.nsIPermissionManager.DENY_ACTION);
+
+  // explicitly add a different permission - in this case we are no longer
+  // replacing the default, but instead replacing the replacement!
+  pm.addFromPrincipal(
+    principal,
+    TEST_PERMISSION,
+    Ci.nsIPermissionManager.PROMPT_ACTION
+  );
+
+  // it should be reflected in a permission check, in the enumerator and the DB
+  Assert.equal(
+    Ci.nsIPermissionManager.PROMPT_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+  // make sure principals with userContextId use the same / different permissions
+  // depending on pref state
+  Assert.equal(
+    permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.PROMPT_ACTION,
+    pm.testPermissionFromPrincipal(principal1UserContext, TEST_PERMISSION)
+  );
+  // If we isolate by private browsing, we should still have the default perm
+  // for the private browsing principal.
+  Assert.equal(
+    permIsolatePrivateBrowsing
+      ? Ci.nsIPermissionManager.ALLOW_ACTION
+      : Ci.nsIPermissionManager.PROMPT_ACTION,
+    pm.testPermissionFromPrincipal(principal1PrivateBrowsing, TEST_PERMISSION)
+  );
+  // make sure principals with firstPartyDomain use different permissions
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal7, TEST_PERMISSION)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(principal8, TEST_PERMISSION)
+  );
+  Assert.equal(Ci.nsIPermissionManager.PROMPT_ACTION, findCapabilityViaEnum());
+  await checkCapabilityViaDB(Ci.nsIPermissionManager.PROMPT_ACTION);
+
+  // --------------------------------------------------------------
+  // check default permissions and removeAllSince work as expected.
+  pm.removeAll(); // ensure only defaults are there.
+
+  // default for both principals is allow.
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal2, TEST_PERMISSION)
+  );
+
+  // Add a default override for TEST_ORIGIN_2 - this one should *not* be
+  // restored in removeAllSince()
+  pm.addFromPrincipal(
+    principal2,
+    TEST_PERMISSION,
+    Ci.nsIPermissionManager.DENY_ACTION
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.DENY_ACTION,
+    pm.testPermissionFromPrincipal(principal2, TEST_PERMISSION)
+  );
+  await promiseTimeout(20);
+
+  let since = Number(Date.now());
+  await promiseTimeout(20);
+
+  // explicitly add a permission which overrides the default for the first
+  // principal - this one *should* be removed by removeAllSince.
+  pm.addFromPrincipal(
+    principal,
+    TEST_PERMISSION,
+    Ci.nsIPermissionManager.DENY_ACTION
+  );
+  Assert.equal(
+    Ci.nsIPermissionManager.DENY_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+
+  // do a removeAllSince.
+  pm.removeAllSince(since);
+
+  // the default for the first principal should re-appear as we modified it
+  // later then |since|
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+
+  // but the permission for principal2 should remain as we added that before |since|.
+  Assert.equal(
+    Ci.nsIPermissionManager.DENY_ACTION,
+    pm.testPermissionFromPrincipal(principal2, TEST_PERMISSION)
+  );
+
+  // remove the temp file we created.
+  file.remove(false);
+});
+
+// use an enumerator to find the requested permission.  Returns the permission
+// value (ie, the "capability" in nsIPermission parlance) or null if it can't
+// be found.
+function findCapabilityViaEnum(origin = TEST_ORIGIN, type = TEST_PERMISSION) {
+  let result = undefined;
+  for (let perm of Services.perms.all) {
+    if (perm.matchesURI(origin, true) && perm.type == type) {
+      if (result !== undefined) {
+        // we've already found one previously - that's bad!
+        do_throw("enumerator found multiple entries");
+      }
+      result = perm.capability;
+    }
+  }
+  return result || null;
+}
+
+// A function to check the DB has the specified capability.  As the permission
+// manager uses async DB operations without a completion callback, the
+// distinct possibility exists that our checking of the DB will happen before
+// the permission manager update has completed - so we just retry a few times.
+// Returns a promise.
+function checkCapabilityViaDB(
+  expected,
+  origin = TEST_ORIGIN,
+  type = TEST_PERMISSION
+) {
+  return new Promise(resolve => {
+    let count = 0;
+    let max = 20;
+    let do_check = () => {
+      let got = findCapabilityViaDB(origin, type);
+      if (got == expected) {
+        // the do_check_eq() below will succeed - which is what we want.
+        Assert.equal(got, expected, "The database has the expected value");
+        resolve();
+        return;
+      }
+      // value isn't correct - see if we've retried enough
+      if (count++ == max) {
+        // the do_check_eq() below will fail - which is what we want.
+        Assert.equal(
+          got,
+          expected,
+          "The database wasn't updated with the expected value"
+        );
+        resolve();
+        return;
+      }
+      // we can retry...
+      do_timeout(100, do_check);
+    };
+    do_check();
+  });
+}
+
+// use the DB to find the requested permission.   Returns the permission
+// value (ie, the "capability" in nsIPermission parlance) or null if it can't
+// be found.
+function findCapabilityViaDB(origin = TEST_ORIGIN, type = TEST_PERMISSION) {
+  let principal = Services.scriptSecurityManager.createContentPrincipal(
+    origin,
+    {}
+  );
+  let originStr = principal.origin;
+
+  let file = Services.dirsvc.get("ProfD", Ci.nsIFile);
+  file.append("permissions.sqlite");
+
+  let connection = Services.storage.openDatabase(file);
+
+  let query = connection.createStatement(
+    "SELECT permission FROM moz_perms WHERE origin = :origin AND type = :type"
+  );
+  query.bindByName("origin", originStr);
+  query.bindByName("type", type);
+
+  if (!query.executeStep()) {
+    // no row
+    return null;
+  }
+  let result = query.getInt32(0);
+  if (query.executeStep()) {
+    // this is bad - we never expect more than 1 row here.
+    do_throw("More than 1 row found!");
+  }
+  return result;
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_expiration.js b/extensions/permissions/test/unit/test_permmanager_expiration.js
new file mode 100644
index 0000000000..24ff366730
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_expiration.js
@@ -0,0 +1,189 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that permissions with specific expiry times behave as expected.
+var test_generator = do_run_test();
+
+function run_test() {
+  do_test_pending();
+  test_generator.next();
+}
+
+function continue_test() {
+  do_run_generator(test_generator);
+}
+
+function* do_run_test() {
+  let pm = Services.perms;
+  let permURI = NetUtil.newURI("http://example.com");
+  let principal = Services.scriptSecurityManager.createContentPrincipal(
+    permURI,
+    {}
+  );
+
+  let now = Number(Date.now());
+
+  // add a permission with *now* expiration
+  pm.addFromPrincipal(
+    principal,
+    "test/expiration-perm-exp",
+    1,
+    pm.EXPIRE_TIME,
+    now
+  );
+  pm.addFromPrincipal(
+    principal,
+    "test/expiration-session-exp",
+    1,
+    pm.EXPIRE_SESSION,
+    now
+  );
+
+  // add a permission with future expiration (100 milliseconds)
+  pm.addFromPrincipal(
+    principal,
+    "test/expiration-perm-exp2",
+    1,
+    pm.EXPIRE_TIME,
+    now + 100
+  );
+  pm.addFromPrincipal(
+    principal,
+    "test/expiration-session-exp2",
+    1,
+    pm.EXPIRE_SESSION,
+    now + 100
+  );
+
+  // add a permission with future expiration (1000 seconds)
+  pm.addFromPrincipal(
+    principal,
+    "test/expiration-perm-exp3",
+    1,
+    pm.EXPIRE_TIME,
+    now + 1e6
+  );
+  pm.addFromPrincipal(
+    principal,
+    "test/expiration-session-exp3",
+    1,
+    pm.EXPIRE_SESSION,
+    now + 1e6
+  );
+
+  // add a permission without expiration
+  pm.addFromPrincipal(
+    principal,
+    "test/expiration-perm-nexp",
+    1,
+    pm.EXPIRE_NEVER,
+    0
+  );
+
+  // check that the second two haven't expired yet
+  Assert.equal(
+    1,
+    pm.testPermissionFromPrincipal(principal, "test/expiration-perm-exp3")
+  );
+  Assert.equal(
+    1,
+    pm.testPermissionFromPrincipal(principal, "test/expiration-session-exp3")
+  );
+  Assert.equal(
+    1,
+    pm.testPermissionFromPrincipal(principal, "test/expiration-perm-nexp")
+  );
+  Assert.equal(1, pm.getAllWithTypePrefix("test/expiration-perm-exp3").length);
+  Assert.equal(
+    1,
+    pm.getAllWithTypePrefix("test/expiration-session-exp3").length
+  );
+  Assert.equal(1, pm.getAllWithTypePrefix("test/expiration-perm-nexp").length);
+  Assert.equal(5, pm.getAllForPrincipal(principal).length);
+
+  // ... and the first one has
+  do_timeout(10, continue_test);
+  yield;
+  Assert.equal(
+    0,
+    pm.testPermissionFromPrincipal(principal, "test/expiration-perm-exp")
+  );
+  Assert.equal(
+    0,
+    pm.testPermissionFromPrincipal(principal, "test/expiration-session-exp")
+  );
+
+  // ... and that the short-term one will
+  do_timeout(200, continue_test);
+  yield;
+  Assert.equal(
+    0,
+    pm.testPermissionFromPrincipal(principal, "test/expiration-perm-exp2")
+  );
+  Assert.equal(
+    0,
+    pm.testPermissionFromPrincipal(principal, "test/expiration-session-exp2")
+  );
+  Assert.equal(0, pm.getAllWithTypePrefix("test/expiration-perm-exp2").length);
+  Assert.equal(
+    0,
+    pm.getAllWithTypePrefix("test/expiration-session-exp2").length
+  );
+
+  Assert.equal(3, pm.getAllForPrincipal(principal).length);
+
+  // Check that .getPermission returns a matching result
+  Assert.equal(
+    null,
+    pm.getPermissionObject(principal, "test/expiration-perm-exp", false)
+  );
+  Assert.equal(
+    null,
+    pm.getPermissionObject(principal, "test/expiration-session-exp", false)
+  );
+  Assert.equal(
+    null,
+    pm.getPermissionObject(principal, "test/expiration-perm-exp2", false)
+  );
+  Assert.equal(
+    null,
+    pm.getPermissionObject(principal, "test/expiration-session-exp2", false)
+  );
+
+  // Add a persistent permission for private browsing
+  let principalPB = Services.scriptSecurityManager.createContentPrincipal(
+    permURI,
+    { privateBrowsingId: 1 }
+  );
+  pm.addFromPrincipal(
+    principalPB,
+    "test/expiration-session-pb",
+    pm.ALLOW_ACTION
+  );
+
+  // The permission should be set to session expiry
+  let perm = pm.getPermissionObject(
+    principalPB,
+    "test/expiration-session-pb",
+    true
+  );
+  Assert.equal(perm.expireType, pm.EXPIRE_SESSION);
+
+  // Add a persistent permission for private browsing using
+  // addFromPrincipalAndPersistInPrivateBrowsing
+  pm.addFromPrincipalAndPersistInPrivateBrowsing(
+    principalPB,
+    "test/expiration-session-pb",
+    pm.ALLOW_ACTION
+  );
+
+  // The permission should be set to never expire
+  perm = pm.getPermissionObject(
+    principalPB,
+    "test/expiration-session-pb",
+    true
+  );
+  Assert.equal(perm.expireType, pm.EXPIRE_NEVER);
+
+  do_finish_generator_test(test_generator);
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_getAllByTypeSince.js b/extensions/permissions/test/unit/test_permmanager_getAllByTypeSince.js
new file mode 100644
index 0000000000..0d328d0a12
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_getAllByTypeSince.js
@@ -0,0 +1,77 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function check_enumerator(prefix, from, permissions) {
+  let pm = Services.perms;
+
+  let array = pm.getAllByTypeSince(prefix, from);
+  Assert.equal(array.length, permissions.length);
+  for (let [principal, type, capability] of permissions) {
+    let perm = array.find(p => p.principal.equals(principal));
+    Assert.ok(perm != null);
+    Assert.equal(perm.type, type);
+    Assert.equal(perm.capability, capability);
+    Assert.equal(perm.expireType, pm.EXPIRE_NEVER);
+  }
+}
+
+add_task(async function test() {
+  let pm = Services.perms;
+
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://example.com"
+  );
+  let subPrincipal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://sub.example.com"
+  );
+
+  check_enumerator("test/", 0, []);
+
+  pm.addFromPrincipal(principal, "test/getAllByTypeSince", pm.ALLOW_ACTION);
+
+  // These shouldn't show up anywhere, the name doesn't match.
+  pm.addFromPrincipal(
+    subPrincipal,
+    "other-test/getAllByTypeSince",
+    pm.PROMPT_ACTION
+  );
+  pm.addFromPrincipal(principal, "test/getAllByTypeSince1", pm.PROMPT_ACTION);
+
+  check_enumerator("test/getAllByTypeSince", 0, [
+    [principal, "test/getAllByTypeSince", pm.ALLOW_ACTION],
+  ]);
+
+  // Add some time in between taking the snapshot of the timestamp
+  // to avoid flakyness.
+  await new Promise(c => do_timeout(100, c));
+  let timestamp = Date.now();
+  await new Promise(c => do_timeout(100, c));
+
+  pm.addFromPrincipal(subPrincipal, "test/getAllByTypeSince", pm.DENY_ACTION);
+
+  check_enumerator("test/getAllByTypeSince", 0, [
+    [subPrincipal, "test/getAllByTypeSince", pm.DENY_ACTION],
+    [principal, "test/getAllByTypeSince", pm.ALLOW_ACTION],
+  ]);
+
+  check_enumerator("test/getAllByTypeSince", timestamp, [
+    [subPrincipal, "test/getAllByTypeSince", pm.DENY_ACTION],
+  ]);
+
+  // check that UNKNOWN_ACTION permissions are ignored
+  pm.addFromPrincipal(
+    subPrincipal,
+    "test/getAllByTypeSince",
+    pm.UNKNOWN_ACTION
+  );
+
+  check_enumerator("test/getAllByTypeSince", 0, [
+    [principal, "test/getAllByTypeSince", pm.ALLOW_ACTION],
+  ]);
+
+  // check that permission removals are reflected
+  pm.removeFromPrincipal(principal, "test/getAllByTypeSince");
+  check_enumerator("test/", 0, []);
+
+  pm.removeAll();
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_getAllByTypes.js b/extensions/permissions/test/unit/test_permmanager_getAllByTypes.js
new file mode 100644
index 0000000000..f4c5251065
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_getAllByTypes.js
@@ -0,0 +1,122 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function check_enumerator(permissionTypes, expectedPermissions) {
+  const permissions = Services.perms.getAllByTypes(permissionTypes);
+
+  Assert.equal(
+    permissions.length,
+    expectedPermissions.length,
+    `getAllByTypes returned the expected number of permissions for ${JSON.stringify(
+      permissionTypes
+    )}`
+  );
+
+  for (const perm of permissions) {
+    Assert.ok(perm != null);
+
+    // For some reason, the order in which we get the permissions doesn't seem to be
+    // stable when running the test with --verify. As a result, we need to retrieve the
+    // expected permission for the origin and type.
+    const expectedPermission = expectedPermissions.find(
+      ([expectedPrincipal, expectedType]) =>
+        perm.principal.equals(expectedPrincipal) && perm.type === expectedType
+    );
+
+    Assert.ok(expectedPermission !== null, "Found the expected permission");
+    Assert.equal(perm.capability, expectedPermission[2]);
+    Assert.equal(perm.expireType, Services.perms.EXPIRE_NEVER);
+  }
+}
+
+function run_test() {
+  let pm = Services.perms;
+
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://example.com"
+  );
+  let subPrincipal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://sub.example.com"
+  );
+
+  const PERM_TYPE_1 = "test/getallbytypes_1";
+  const PERM_TYPE_2 = "test/getallbytypes_2";
+
+  info("check default state");
+  check_enumerator([], []);
+  check_enumerator([PERM_TYPE_1], []);
+  check_enumerator([PERM_TYPE_2], []);
+  check_enumerator([PERM_TYPE_1, PERM_TYPE_2], []);
+
+  info("check that expected permissions are retrieved");
+  pm.addFromPrincipal(principal, PERM_TYPE_1, pm.ALLOW_ACTION);
+  pm.addFromPrincipal(
+    subPrincipal,
+    "other-test/getallbytypes_1",
+    pm.PROMPT_ACTION
+  );
+  check_enumerator([PERM_TYPE_1], [[principal, PERM_TYPE_1, pm.ALLOW_ACTION]]);
+  check_enumerator(
+    [PERM_TYPE_1, PERM_TYPE_2],
+    [[principal, PERM_TYPE_1, pm.ALLOW_ACTION]]
+  );
+  check_enumerator([], []);
+  check_enumerator([PERM_TYPE_2], []);
+
+  pm.addFromPrincipal(subPrincipal, PERM_TYPE_1, pm.PROMPT_ACTION);
+  check_enumerator(
+    [PERM_TYPE_1],
+    [
+      [subPrincipal, PERM_TYPE_1, pm.PROMPT_ACTION],
+      [principal, PERM_TYPE_1, pm.ALLOW_ACTION],
+    ]
+  );
+  check_enumerator(
+    [PERM_TYPE_1, PERM_TYPE_2],
+    [
+      [subPrincipal, PERM_TYPE_1, pm.PROMPT_ACTION],
+      [principal, PERM_TYPE_1, pm.ALLOW_ACTION],
+    ]
+  );
+  check_enumerator([], []);
+  check_enumerator([PERM_TYPE_2], []);
+
+  pm.addFromPrincipal(principal, PERM_TYPE_2, pm.PROMPT_ACTION);
+  check_enumerator(
+    [PERM_TYPE_1, PERM_TYPE_2],
+    [
+      [subPrincipal, PERM_TYPE_1, pm.PROMPT_ACTION],
+      [principal, PERM_TYPE_1, pm.ALLOW_ACTION],
+      [principal, PERM_TYPE_2, pm.PROMPT_ACTION],
+    ]
+  );
+  check_enumerator([], []);
+  check_enumerator([PERM_TYPE_2], [[principal, PERM_TYPE_2, pm.PROMPT_ACTION]]);
+
+  info("check that UNKNOWN_ACTION permissions are ignored");
+  pm.addFromPrincipal(subPrincipal, PERM_TYPE_2, pm.UNKNOWN_ACTION);
+  check_enumerator([PERM_TYPE_2], [[principal, PERM_TYPE_2, pm.PROMPT_ACTION]]);
+
+  info("check that permission updates are reflected");
+  pm.addFromPrincipal(subPrincipal, PERM_TYPE_2, pm.PROMPT_ACTION);
+  check_enumerator(
+    [PERM_TYPE_2],
+    [
+      [subPrincipal, PERM_TYPE_2, pm.PROMPT_ACTION],
+      [principal, PERM_TYPE_2, pm.PROMPT_ACTION],
+    ]
+  );
+
+  info("check that permission removals are reflected");
+  pm.removeFromPrincipal(principal, PERM_TYPE_1);
+  check_enumerator(
+    [PERM_TYPE_1],
+    [[subPrincipal, PERM_TYPE_1, pm.PROMPT_ACTION]]
+  );
+
+  pm.removeAll();
+  check_enumerator([], []);
+  check_enumerator([PERM_TYPE_1], []);
+  check_enumerator([PERM_TYPE_2], []);
+  check_enumerator([PERM_TYPE_1, PERM_TYPE_2], []);
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_getAllForPrincipal.js b/extensions/permissions/test/unit/test_permmanager_getAllForPrincipal.js
new file mode 100644
index 0000000000..b8cfe26549
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_getAllForPrincipal.js
@@ -0,0 +1,70 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function check_enumerator(principal, permissions) {
+  let perms = Services.perms.getAllForPrincipal(principal);
+  for (let [type, capability] of permissions) {
+    let perm = perms.shift();
+    Assert.ok(perm != null);
+    Assert.equal(perm.type, type);
+    Assert.equal(perm.capability, capability);
+    Assert.equal(perm.expireType, Services.perms.EXPIRE_NEVER);
+  }
+  Assert.ok(!perms.length);
+}
+
+function run_test() {
+  let pm = Services.perms;
+
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://example.com"
+  );
+  let subPrincipal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://sub.example.com"
+  );
+
+  check_enumerator(principal, []);
+
+  pm.addFromPrincipal(principal, "test/getallforuri", pm.ALLOW_ACTION);
+  check_enumerator(principal, [["test/getallforuri", pm.ALLOW_ACTION]]);
+
+  // check that uris are matched exactly
+  check_enumerator(subPrincipal, []);
+
+  pm.addFromPrincipal(subPrincipal, "test/getallforuri", pm.PROMPT_ACTION);
+  pm.addFromPrincipal(subPrincipal, "test/getallforuri2", pm.DENY_ACTION);
+
+  check_enumerator(subPrincipal, [
+    ["test/getallforuri", pm.PROMPT_ACTION],
+    ["test/getallforuri2", pm.DENY_ACTION],
+  ]);
+
+  // check that the original uri list has not changed
+  check_enumerator(principal, [["test/getallforuri", pm.ALLOW_ACTION]]);
+
+  // check that UNKNOWN_ACTION permissions are ignored
+  pm.addFromPrincipal(principal, "test/getallforuri2", pm.UNKNOWN_ACTION);
+  pm.addFromPrincipal(principal, "test/getallforuri3", pm.DENY_ACTION);
+
+  check_enumerator(principal, [
+    ["test/getallforuri", pm.ALLOW_ACTION],
+    ["test/getallforuri3", pm.DENY_ACTION],
+  ]);
+
+  // check that permission updates are reflected
+  pm.addFromPrincipal(principal, "test/getallforuri", pm.PROMPT_ACTION);
+
+  check_enumerator(principal, [
+    ["test/getallforuri", pm.PROMPT_ACTION],
+    ["test/getallforuri3", pm.DENY_ACTION],
+  ]);
+
+  // check that permission removals are reflected
+  pm.removeFromPrincipal(principal, "test/getallforuri");
+
+  check_enumerator(principal, [["test/getallforuri3", pm.DENY_ACTION]]);
+
+  pm.removeAll();
+  check_enumerator(principal, []);
+  check_enumerator(subPrincipal, []);
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_getAllWithTypePrefix.js b/extensions/permissions/test/unit/test_permmanager_getAllWithTypePrefix.js
new file mode 100644
index 0000000000..b6a99fbdbe
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_getAllWithTypePrefix.js
@@ -0,0 +1,82 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function check_enumerator(prefix, permissions) {
+  let pm = Services.perms;
+
+  let array = pm.getAllWithTypePrefix(prefix);
+  for (let [principal, type, capability] of permissions) {
+    let perm = array.shift();
+    Assert.ok(perm != null);
+    Assert.ok(perm.principal.equals(principal));
+    Assert.equal(perm.type, type);
+    Assert.equal(perm.capability, capability);
+    Assert.equal(perm.expireType, pm.EXPIRE_NEVER);
+  }
+  Assert.equal(array.length, 0);
+}
+
+function run_test() {
+  let pm = Services.perms;
+
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://example.com"
+  );
+  let subPrincipal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://sub.example.com"
+  );
+
+  check_enumerator("test/", []);
+
+  pm.addFromPrincipal(principal, "test/getallwithtypeprefix", pm.ALLOW_ACTION);
+  pm.addFromPrincipal(
+    subPrincipal,
+    "other-test/getallwithtypeprefix",
+    pm.PROMPT_ACTION
+  );
+  check_enumerator("test/", [
+    [principal, "test/getallwithtypeprefix", pm.ALLOW_ACTION],
+  ]);
+
+  pm.addFromPrincipal(
+    subPrincipal,
+    "test/getallwithtypeprefix",
+    pm.PROMPT_ACTION
+  );
+  check_enumerator("test/", [
+    [subPrincipal, "test/getallwithtypeprefix", pm.PROMPT_ACTION],
+    [principal, "test/getallwithtypeprefix", pm.ALLOW_ACTION],
+  ]);
+
+  check_enumerator("test/getallwithtypeprefix", [
+    [subPrincipal, "test/getallwithtypeprefix", pm.PROMPT_ACTION],
+    [principal, "test/getallwithtypeprefix", pm.ALLOW_ACTION],
+  ]);
+
+  // check that UNKNOWN_ACTION permissions are ignored
+  pm.addFromPrincipal(
+    principal,
+    "test/getallwithtypeprefix2",
+    pm.UNKNOWN_ACTION
+  );
+  check_enumerator("test/", [
+    [subPrincipal, "test/getallwithtypeprefix", pm.PROMPT_ACTION],
+    [principal, "test/getallwithtypeprefix", pm.ALLOW_ACTION],
+  ]);
+
+  // check that permission updates are reflected
+  pm.addFromPrincipal(principal, "test/getallwithtypeprefix", pm.PROMPT_ACTION);
+  check_enumerator("test/", [
+    [subPrincipal, "test/getallwithtypeprefix", pm.PROMPT_ACTION],
+    [principal, "test/getallwithtypeprefix", pm.PROMPT_ACTION],
+  ]);
+
+  // check that permission removals are reflected
+  pm.removeFromPrincipal(principal, "test/getallwithtypeprefix");
+  check_enumerator("test/", [
+    [subPrincipal, "test/getallwithtypeprefix", pm.PROMPT_ACTION],
+  ]);
+
+  pm.removeAll();
+  check_enumerator("test/", []);
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_getPermissionObject.js b/extensions/permissions/test/unit/test_permmanager_getPermissionObject.js
new file mode 100644
index 0000000000..78ef9ab08a
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_getPermissionObject.js
@@ -0,0 +1,98 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function getPrincipalFromURI(aURI) {
+  let ssm = Services.scriptSecurityManager;
+  let uri = NetUtil.newURI(aURI);
+  return ssm.createContentPrincipal(uri, {});
+}
+
+function getSystemPrincipal() {
+  return Services.scriptSecurityManager.getSystemPrincipal();
+}
+
+function run_test() {
+  var pm = Services.perms;
+
+  Assert.equal(
+    null,
+    pm.getPermissionObject(getSystemPrincipal(), "test/pobject", false)
+  );
+
+  let principal = getPrincipalFromURI("http://example.com");
+  let subPrincipal = getPrincipalFromURI("http://sub.example.com");
+  let subSubPrincipal = getPrincipalFromURI("http://sub.sub.example.com");
+
+  Assert.equal(null, pm.getPermissionObject(principal, "test/pobject", false));
+  Assert.equal(null, pm.getPermissionObject(principal, "test/pobject", true));
+
+  pm.addFromPrincipal(principal, "test/pobject", pm.ALLOW_ACTION);
+  var rootPerm = pm.getPermissionObject(principal, "test/pobject", false);
+  Assert.ok(rootPerm != null);
+  Assert.equal(rootPerm.principal.origin, "http://example.com");
+  Assert.equal(rootPerm.type, "test/pobject");
+  Assert.equal(rootPerm.capability, pm.ALLOW_ACTION);
+  Assert.equal(rootPerm.expireType, pm.EXPIRE_NEVER);
+
+  Assert.ok(rootPerm != null);
+  Assert.equal(rootPerm.principal.origin, "http://example.com");
+
+  var subPerm = pm.getPermissionObject(subPrincipal, "test/pobject", true);
+  Assert.equal(null, subPerm);
+  subPerm = pm.getPermissionObject(subPrincipal, "test/pobject", false);
+  Assert.ok(subPerm != null);
+  Assert.equal(subPerm.principal.origin, "http://example.com");
+  Assert.equal(subPerm.type, "test/pobject");
+  Assert.equal(subPerm.capability, pm.ALLOW_ACTION);
+
+  subPerm = pm.getPermissionObject(subSubPrincipal, "test/pobject", true);
+  Assert.equal(null, subPerm);
+  subPerm = pm.getPermissionObject(subSubPrincipal, "test/pobject", false);
+  Assert.ok(subPerm != null);
+  Assert.equal(subPerm.principal.origin, "http://example.com");
+
+  pm.addFromPrincipal(
+    principal,
+    "test/pobject",
+    pm.DENY_ACTION,
+    pm.EXPIRE_SESSION
+  );
+
+  // make sure permission objects are not dynamic
+  Assert.equal(rootPerm.capability, pm.ALLOW_ACTION);
+
+  // but do update on change
+  rootPerm = pm.getPermissionObject(principal, "test/pobject", true);
+  Assert.equal(rootPerm.capability, pm.DENY_ACTION);
+  Assert.equal(rootPerm.expireType, pm.EXPIRE_SESSION);
+
+  subPerm = pm.getPermissionObject(subPrincipal, "test/pobject", false);
+  Assert.equal(subPerm.principal.origin, "http://example.com");
+  Assert.equal(subPerm.capability, pm.DENY_ACTION);
+  Assert.equal(subPerm.expireType, pm.EXPIRE_SESSION);
+
+  pm.addFromPrincipal(subPrincipal, "test/pobject", pm.PROMPT_ACTION);
+  rootPerm = pm.getPermissionObject(principal, "test/pobject", true);
+  Assert.equal(rootPerm.principal.origin, "http://example.com");
+  Assert.equal(rootPerm.capability, pm.DENY_ACTION);
+
+  subPerm = pm.getPermissionObject(subPrincipal, "test/pobject", true);
+  Assert.equal(subPerm.principal.origin, "http://sub.example.com");
+  Assert.equal(subPerm.capability, pm.PROMPT_ACTION);
+
+  subPerm = pm.getPermissionObject(subPrincipal, "test/pobject", false);
+  Assert.equal(subPerm.principal.origin, "http://sub.example.com");
+  Assert.equal(subPerm.capability, pm.PROMPT_ACTION);
+
+  subPerm = pm.getPermissionObject(subSubPrincipal, "test/pobject", true);
+  Assert.equal(null, subPerm);
+
+  subPerm = pm.getPermissionObject(subSubPrincipal, "test/pobject", false);
+  Assert.equal(subPerm.principal.origin, "http://sub.example.com");
+  Assert.equal(subPerm.capability, pm.PROMPT_ACTION);
+
+  pm.removeFromPrincipal(principal, "test/pobject");
+
+  rootPerm = pm.getPermissionObject(principal, "test/pobject", true);
+  Assert.equal(null, rootPerm);
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_idn.js b/extensions/permissions/test/unit/test_permmanager_idn.js
new file mode 100644
index 0000000000..5719131245
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_idn.js
@@ -0,0 +1,75 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function getPrincipalFromDomain(aDomain) {
+  let ssm = Services.scriptSecurityManager;
+  let uri = NetUtil.newURI("http://" + aDomain);
+  return ssm.createContentPrincipal(uri, {});
+}
+
+function run_test() {
+  let pm = Services.perms;
+  let perm = "test-idn";
+
+  // We create three principal linked to IDN.
+  // One with just a domain, one with a subdomain and one with the TLD
+  // containing a UTF-8 character.
+  let mainDomainPrincipal = getPrincipalFromDomain("fôû.com");
+  let subDomainPrincipal = getPrincipalFromDomain("fôô.bàr.com");
+  let tldPrincipal = getPrincipalFromDomain("fôû.bàr.côm");
+
+  // We add those to the permission manager.
+  pm.addFromPrincipal(mainDomainPrincipal, perm, pm.ALLOW_ACTION, 0, 0);
+  pm.addFromPrincipal(subDomainPrincipal, perm, pm.ALLOW_ACTION, 0, 0);
+  pm.addFromPrincipal(tldPrincipal, perm, pm.ALLOW_ACTION, 0, 0);
+
+  // They should obviously be there now..
+  Assert.equal(
+    pm.testPermissionFromPrincipal(mainDomainPrincipal, perm),
+    pm.ALLOW_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(subDomainPrincipal, perm),
+    pm.ALLOW_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(tldPrincipal, perm),
+    pm.ALLOW_ACTION
+  );
+
+  // We do the same thing with the puny-encoded versions of the IDN.
+  let punyMainDomainPrincipal = getPrincipalFromDomain("xn--f-xgav.com");
+  let punySubDomainPrincipal = getPrincipalFromDomain(
+    "xn--f-xgaa.xn--br-jia.com"
+  );
+  let punyTldPrincipal = getPrincipalFromDomain(
+    "xn--f-xgav.xn--br-jia.xn--cm-8ja"
+  );
+
+  // Those principals should have the permission granted too.
+  Assert.equal(
+    pm.testPermissionFromPrincipal(punyMainDomainPrincipal, perm),
+    pm.ALLOW_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(punySubDomainPrincipal, perm),
+    pm.ALLOW_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(punyTldPrincipal, perm),
+    pm.ALLOW_ACTION
+  );
+
+  // However, those two principals shouldn't be allowed because they are like
+  // the IDN but without the UT8-8 characters.
+  let witnessPrincipal = getPrincipalFromDomain("foo.com");
+  Assert.equal(
+    pm.testPermissionFromPrincipal(witnessPrincipal, perm),
+    pm.UNKNOWN_ACTION
+  );
+  witnessPrincipal = getPrincipalFromDomain("foo.bar.com");
+  Assert.equal(
+    pm.testPermissionFromPrincipal(witnessPrincipal, perm),
+    pm.UNKNOWN_ACTION
+  );
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_ipc.js b/extensions/permissions/test/unit/test_permmanager_ipc.js
new file mode 100644
index 0000000000..0247ef9b72
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_ipc.js
@@ -0,0 +1,89 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const { ExtensionTestUtils } = ChromeUtils.import(
+  "resource://testing-common/ExtensionXPCShellUtils.jsm"
+);
+
+add_task(async function test_permissions_sent_over_ipc_on_bloburl() {
+  const ssm = Services.scriptSecurityManager;
+  const pm = Services.perms;
+
+  // setup a profile.
+  do_get_profile();
+
+  async function assertExpectedContentPage(contentPage) {
+    const [processType, remoteType, principalSpec] = await page.spawn(
+      [],
+      async () => {
+        return [
+          Services.appinfo.processType,
+          Services.appinfo.remoteType,
+          this.content.document.nodePrincipal.spec,
+        ];
+      }
+    );
+
+    equal(
+      processType,
+      Services.appinfo.PROCESS_TYPE_CONTENT,
+      "Got a content process"
+    );
+    equal(remoteType, "file", "Got a file child process");
+    equal(principalSpec, principal.spec, "Got the expected document principal");
+  }
+
+  function getChildProcessID(contentPage) {
+    return contentPage.spawn([], () => Services.appinfo.processID);
+  }
+
+  async function assertHasAllowedPermission(contentPage, perm) {
+    const isPermissionAllowed = await contentPage.spawn(
+      [perm],
+      permName =>
+        Services.perms.getPermissionObject(
+          this.content.document.nodePrincipal,
+          permName,
+          true
+        )?.capability === Services.perms.ALLOW_ACTION
+    );
+    ok(isPermissionAllowed, `Permission "${perm}" allowed as expected`);
+  }
+
+  let file = do_get_file(".", true);
+  let fileURI = Services.io.newFileURI(file);
+  const principal = ssm.createContentPrincipal(fileURI, {});
+  info(`Add a test permission to the document principal: ${principal.spec}`);
+  pm.addFromPrincipal(principal, "test/perm", pm.ALLOW_ACTION);
+
+  info("Test expected permission is propagated into the child process");
+  let page = await ExtensionTestUtils.loadContentPage(fileURI.spec);
+  const childID1 = await getChildProcessID(page);
+  await assertExpectedContentPage(page);
+  await assertHasAllowedPermission(page, "test/perm");
+  await page.close();
+
+  // Ensure this blob url does not prevent permissions to be propagated
+  // to a new child process.
+  info("Create a blob url for a non http/https principal");
+  const blob = new Blob();
+  const blobURL = URL.createObjectURL(blob);
+  ok(blobURL, "Got a blob URL");
+
+  info("Test expected permission is still propagated");
+  page = await ExtensionTestUtils.loadContentPage(fileURI.spec);
+  const childID2 = await getChildProcessID(page);
+  await assertExpectedContentPage(page);
+  Assert.notEqual(childID1, childID2, "Got a new child process as expected");
+  await assertHasAllowedPermission(page, "test/perm");
+  await page.close();
+
+  URL.revokeObjectURL(blobURL);
+
+  page = await ExtensionTestUtils.loadContentPage(fileURI.spec);
+  const childID3 = await getChildProcessID(page);
+  await assertExpectedContentPage(page);
+  Assert.notEqual(childID2, childID3, "Got a new child process as expected");
+  await assertHasAllowedPermission(page, "test/perm");
+  await page.close();
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_load_invalid_entries.js b/extensions/permissions/test/unit/test_permmanager_load_invalid_entries.js
new file mode 100644
index 0000000000..decbce81a0
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_load_invalid_entries.js
@@ -0,0 +1,264 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+var DEBUG_TEST = false;
+
+function run_test() {
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  // Setup a profile directory.
+  var dir = do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.equal(pm.all.length, 0, "No cookies");
+
+  // Get the db file.
+  var file = dir.clone();
+  file.append("permissions.sqlite");
+
+  var storage = Services.storage;
+
+  // Create database.
+  var connection = storage.openDatabase(file);
+  // The file should now exist.
+  Assert.ok(file.exists());
+
+  connection.schemaVersion = 3;
+  connection.executeSimpleSQL("DROP TABLE moz_hosts");
+  connection.executeSimpleSQL(
+    "CREATE TABLE moz_hosts (" +
+      " id INTEGER PRIMARY KEY" +
+      ",host TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",appId INTEGER" +
+      ",isInBrowserElement INTEGER" +
+      ")"
+  );
+
+  // Now we can inject garbadge in the database.
+  var garbadge = [
+    // Regular entry.
+    {
+      host: "42",
+      type: "0",
+      permission: 1,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+
+    // Special values in host (some being invalid).
+    {
+      host: "scheme:file",
+      type: "1",
+      permission: 0,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+    {
+      host: "192.168.0.1",
+      type: "2",
+      permission: 0,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+    {
+      host: "2001:0db8:0000:0000:0000:ff00:0042:8329",
+      type: "3",
+      permission: 0,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+    {
+      host: "::1",
+      type: "4",
+      permission: 0,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+
+    // Permission is UNKNOWN_ACTION.
+    {
+      host: "42",
+      type: "5",
+      permission: Ci.nsIPermissionManager.UNKNOWN_ACTION,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+
+    // Permission is out of range.
+    {
+      host: "42",
+      type: "6",
+      permission: 100,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+    {
+      host: "42",
+      type: "7",
+      permission: -100,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+
+    // ExpireType is out of range.
+    {
+      host: "42",
+      type: "8",
+      permission: 1,
+      expireType: -100,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+    {
+      host: "42",
+      type: "9",
+      permission: 1,
+      expireType: 100,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+
+    // ExpireTime is at 0 with ExpireType = Time.
+    {
+      host: "42",
+      type: "10",
+      permission: 1,
+      expireType: Ci.nsIPermissionManager.EXPIRE_TIME,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+
+    // ExpireTime has a value with ExpireType != Time
+    {
+      host: "42",
+      type: "11",
+      permission: 1,
+      expireType: Ci.nsIPermissionManager.EXPIRE_SESSION,
+      expireTime: 1000,
+      isInBrowserElement: 0,
+    },
+    {
+      host: "42",
+      type: "12",
+      permission: 1,
+      expireType: Ci.nsIPermissionManager.EXPIRE_NEVER,
+      expireTime: 1000,
+      isInBrowserElement: 0,
+    },
+
+    // ExpireTime is negative.
+    {
+      host: "42",
+      type: "13",
+      permission: 1,
+      expireType: Ci.nsIPermissionManager.EXPIRE_TIME,
+      expireTime: -1,
+      isInBrowserElement: 0,
+    },
+
+    // IsInBrowserElement is negative or higher than 1.
+    {
+      host: "42",
+      type: "15",
+      permission: 1,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: -1,
+    },
+    {
+      host: "42",
+      type: "16",
+      permission: 1,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: 10,
+    },
+
+    // This insertion should be the last one. It is used to make sure we always
+    // load it regardless of the previous entries validities.
+    {
+      host: "example.org",
+      type: "test-load-invalid-entries",
+      permission: Ci.nsIPermissionManager.ALLOW_ACTION,
+      expireType: 0,
+      expireTime: 0,
+      isInBrowserElement: 0,
+    },
+  ];
+
+  for (var i = 0; i < garbadge.length; ++i) {
+    if (DEBUG_TEST) {
+      dump("\n value #" + i + "\n\n");
+    }
+    var data = garbadge[i];
+    connection.executeSimpleSQL(
+      "INSERT INTO moz_hosts " +
+        " (id, host, type, permission, expireType, expireTime, isInBrowserElement, appId) " +
+        "VALUES (" +
+        i +
+        ", '" +
+        data.host +
+        "', '" +
+        data.type +
+        "', " +
+        data.permission +
+        ", " +
+        data.expireType +
+        ", " +
+        data.expireTime +
+        ", " +
+        data.isInBrowserElement +
+        ", 0)"
+    );
+  }
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Let's do something in order to be sure the DB is read.
+  Assert.greater(pm.all.length, 0);
+
+  // The schema should be upgraded to 11, and a 'modificationTime' column should
+  // exist with all records having a value of 0.
+  Assert.equal(connection.schemaVersion, 12);
+
+  let select = connection.createStatement(
+    "SELECT modificationTime FROM moz_perms"
+  );
+  let numMigrated = 0;
+  while (select.executeStep()) {
+    let thisModTime = select.getInt64(0);
+    Assert.ok(
+      thisModTime > 0,
+      "new modifiedTime field is correct (but it's not 0!)"
+    );
+    numMigrated += 1;
+  }
+  // check we found at least 1 record that was migrated.
+  Assert.greater(
+    numMigrated,
+    0,
+    "we found at least 1 record that was migrated"
+  );
+
+  // This permission should always be there.
+  let ssm = Services.scriptSecurityManager;
+  let uri = NetUtil.newURI("http://example.org");
+  let principal = ssm.createContentPrincipal(uri, {});
+  Assert.equal(
+    pm.testPermissionFromPrincipal(principal, "test-load-invalid-entries"),
+    Ci.nsIPermissionManager.ALLOW_ACTION
+  );
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_local_files.js b/extensions/permissions/test/unit/test_permmanager_local_files.js
new file mode 100644
index 0000000000..389eb77916
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_local_files.js
@@ -0,0 +1,74 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that permissions work for file:// URIs (aka local files).
+
+function getPrincipalFromURIString(uriStr) {
+  let uri = NetUtil.newURI(uriStr);
+  return Services.scriptSecurityManager.createContentPrincipal(uri, {});
+}
+
+function run_test() {
+  let pm = Services.perms;
+
+  // If we add a permission to a file:// URI, the test should return true.
+  let principal = getPrincipalFromURIString("file:///foo/bar");
+  pm.addFromPrincipal(principal, "test/local-files", pm.ALLOW_ACTION, 0, 0);
+  Assert.equal(
+    pm.testPermissionFromPrincipal(principal, "test/local-files"),
+    pm.ALLOW_ACTION
+  );
+
+  // Another file:// URI should have the same permission.
+  let witnessPrincipal = getPrincipalFromURIString("file:///bar/foo");
+  Assert.equal(
+    pm.testPermissionFromPrincipal(witnessPrincipal, "test/local-files"),
+    pm.UNKNOWN_ACTION
+  );
+
+  // Giving "file:///" a permission shouldn't give it to all file:// URIs.
+  let rootPrincipal = getPrincipalFromURIString("file:///");
+  pm.addFromPrincipal(rootPrincipal, "test/local-files", pm.ALLOW_ACTION, 0, 0);
+  Assert.equal(
+    pm.testPermissionFromPrincipal(witnessPrincipal, "test/local-files"),
+    pm.UNKNOWN_ACTION
+  );
+
+  // Giving "file://" a permission shouldn't give it to all file:// URIs.
+  let schemeRootPrincipal = getPrincipalFromURIString("file://");
+  pm.addFromPrincipal(
+    schemeRootPrincipal,
+    "test/local-files",
+    pm.ALLOW_ACTION,
+    0,
+    0
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(witnessPrincipal, "test/local-files"),
+    pm.UNKNOWN_ACTION
+  );
+
+  // Giving 'node' a permission shouldn't give it to its 'children'.
+  let fileInDirPrincipal = getPrincipalFromURIString(
+    "file:///foo/bar/foobar.txt"
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(fileInDirPrincipal, "test/local-files"),
+    pm.UNKNOWN_ACTION
+  );
+
+  // Revert "file:///foo/bar" permission and check that it has been correctly taken into account.
+  pm.removeFromPrincipal(principal, "test/local-files");
+  Assert.equal(
+    pm.testPermissionFromPrincipal(principal, "test/local-files"),
+    pm.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(witnessPrincipal, "test/local-files"),
+    pm.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(fileInDirPrincipal, "test/local-files"),
+    pm.UNKNOWN_ACTION
+  );
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_matches.js b/extensions/permissions/test/unit/test_permmanager_matches.js
new file mode 100644
index 0000000000..937a1ce750
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_matches.js
@@ -0,0 +1,203 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var attrs;
+
+function matches_always(perm, principals) {
+  principals.forEach(principal => {
+    Assert.ok(
+      perm.matches(principal, true),
+      "perm: " + perm.principal.origin + ", princ: " + principal.origin
+    );
+    Assert.ok(
+      perm.matches(principal, false),
+      "perm: " + perm.principal.origin + ", princ: " + principal.origin
+    );
+  });
+}
+
+function matches_weak(perm, principals) {
+  principals.forEach(principal => {
+    Assert.ok(
+      !perm.matches(principal, true),
+      "perm: " + perm.principal.origin + ", princ: " + principal.origin
+    );
+    Assert.ok(
+      perm.matches(principal, false),
+      "perm: " + perm.principal.origin + ", princ: " + principal.origin
+    );
+  });
+}
+
+function matches_never(perm, principals) {
+  principals.forEach(principal => {
+    Assert.ok(
+      !perm.matches(principal, true),
+      "perm: " + perm.principal.origin + ", princ: " + principal.origin
+    );
+    Assert.ok(
+      !perm.matches(principal, false),
+      "perm: " + perm.principal.origin + ", princ: " + principal.origin
+    );
+  });
+}
+
+function run_test() {
+  // initialize the permission manager service
+  let pm = Services.perms;
+
+  let secMan = Services.scriptSecurityManager;
+
+  // Add some permissions
+  let uri0 = NetUtil.newURI("http://google.com/search?q=foo#hashtag");
+  let uri1 = NetUtil.newURI("http://hangouts.google.com/subdir");
+  let uri2 = NetUtil.newURI("http://google.org/");
+  let uri3 = NetUtil.newURI("https://google.com/some/random/subdirectory");
+  let uri4 = NetUtil.newURI("https://hangouts.google.com/#!/hangout");
+  let uri5 = NetUtil.newURI("http://google.com:8096/");
+
+  let uri0_n = secMan.createContentPrincipal(uri0, {});
+  let uri1_n = secMan.createContentPrincipal(uri1, {});
+  let uri2_n = secMan.createContentPrincipal(uri2, {});
+  let uri3_n = secMan.createContentPrincipal(uri3, {});
+  let uri4_n = secMan.createContentPrincipal(uri4, {});
+  let uri5_n = secMan.createContentPrincipal(uri5, {});
+
+  attrs = { inIsolatedMozBrowser: true };
+  let uri0_y_ = secMan.createContentPrincipal(uri0, attrs);
+  let uri1_y_ = secMan.createContentPrincipal(uri1, attrs);
+  let uri2_y_ = secMan.createContentPrincipal(uri2, attrs);
+  let uri3_y_ = secMan.createContentPrincipal(uri3, attrs);
+  let uri4_y_ = secMan.createContentPrincipal(uri4, attrs);
+  let uri5_y_ = secMan.createContentPrincipal(uri5, attrs);
+
+  attrs = { userContextId: 1 };
+  let uri0_1 = secMan.createContentPrincipal(uri0, attrs);
+  let uri1_1 = secMan.createContentPrincipal(uri1, attrs);
+  let uri2_1 = secMan.createContentPrincipal(uri2, attrs);
+  let uri3_1 = secMan.createContentPrincipal(uri3, attrs);
+  let uri4_1 = secMan.createContentPrincipal(uri4, attrs);
+  let uri5_1 = secMan.createContentPrincipal(uri5, attrs);
+
+  attrs = { firstPartyDomain: "cnn.com" };
+  let uri0_cnn = secMan.createContentPrincipal(uri0, attrs);
+  let uri1_cnn = secMan.createContentPrincipal(uri1, attrs);
+  let uri2_cnn = secMan.createContentPrincipal(uri2, attrs);
+  let uri3_cnn = secMan.createContentPrincipal(uri3, attrs);
+  let uri4_cnn = secMan.createContentPrincipal(uri4, attrs);
+  let uri5_cnn = secMan.createContentPrincipal(uri5, attrs);
+
+  pm.addFromPrincipal(uri0_n, "test/matches", pm.ALLOW_ACTION);
+  let perm_n = pm.getPermissionObject(uri0_n, "test/matches", true);
+  pm.addFromPrincipal(uri0_y_, "test/matches", pm.ALLOW_ACTION);
+  let perm_y_ = pm.getPermissionObject(uri0_y_, "test/matches", true);
+  pm.addFromPrincipal(uri0_1, "test/matches", pm.ALLOW_ACTION);
+  let perm_1 = pm.getPermissionObject(uri0_n, "test/matches", true);
+  pm.addFromPrincipal(uri0_cnn, "test/matches", pm.ALLOW_ACTION);
+  let perm_cnn = pm.getPermissionObject(uri0_n, "test/matches", true);
+
+  matches_always(perm_n, [uri0_n, uri0_1]);
+  matches_weak(perm_n, [uri1_n, uri1_1]);
+  matches_never(perm_n, [
+    uri2_n,
+    uri3_n,
+    uri4_n,
+    uri5_n,
+    uri0_y_,
+    uri1_y_,
+    uri2_y_,
+    uri3_y_,
+    uri4_y_,
+    uri5_y_,
+    uri2_1,
+    uri3_1,
+    uri4_1,
+    uri5_1,
+    uri0_cnn,
+    uri1_cnn,
+    uri2_cnn,
+    uri3_cnn,
+    uri4_cnn,
+    uri5_cnn,
+  ]);
+
+  matches_always(perm_y_, [uri0_y_]);
+  matches_weak(perm_y_, [uri1_y_]);
+  matches_never(perm_y_, [
+    uri2_y_,
+    uri3_y_,
+    uri4_y_,
+    uri5_y_,
+    uri0_n,
+    uri1_n,
+    uri2_n,
+    uri3_n,
+    uri4_n,
+    uri5_n,
+    uri0_1,
+    uri1_1,
+    uri2_1,
+    uri3_1,
+    uri4_1,
+    uri5_1,
+    uri0_cnn,
+    uri1_cnn,
+    uri2_cnn,
+    uri3_cnn,
+    uri4_cnn,
+    uri5_cnn,
+  ]);
+
+  matches_always(perm_1, [uri0_n, uri0_1]);
+  matches_weak(perm_1, [uri1_n, uri1_1]);
+  matches_never(perm_1, [
+    uri2_n,
+    uri3_n,
+    uri4_n,
+    uri5_n,
+    uri0_y_,
+    uri1_y_,
+    uri2_y_,
+    uri3_y_,
+    uri4_y_,
+    uri5_y_,
+    uri2_1,
+    uri3_1,
+    uri4_1,
+    uri5_1,
+    uri0_cnn,
+    uri1_cnn,
+    uri2_cnn,
+    uri3_cnn,
+    uri4_cnn,
+    uri5_cnn,
+  ]);
+
+  matches_always(perm_cnn, [uri0_n, uri0_1]);
+  matches_weak(perm_cnn, [uri1_n, uri1_1]);
+  matches_never(perm_cnn, [
+    uri2_n,
+    uri3_n,
+    uri4_n,
+    uri5_n,
+    uri0_y_,
+    uri1_y_,
+    uri2_y_,
+    uri3_y_,
+    uri4_y_,
+    uri5_y_,
+    uri2_1,
+    uri3_1,
+    uri4_1,
+    uri5_1,
+    uri0_cnn,
+    uri1_cnn,
+    uri2_cnn,
+    uri3_cnn,
+    uri4_cnn,
+    uri5_cnn,
+  ]);
+
+  // Clean up!
+  pm.removeAll();
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_matchesuri.js b/extensions/permissions/test/unit/test_permmanager_matchesuri.js
new file mode 100644
index 0000000000..1218fbf9ca
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_matchesuri.js
@@ -0,0 +1,252 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function matches_always(perm, uris) {
+  uris.forEach(uri => {
+    Assert.ok(
+      perm.matchesURI(uri, true),
+      "perm: " + perm.principal.origin + ", URI: " + uri.spec
+    );
+    Assert.ok(
+      perm.matchesURI(uri, false),
+      "perm: " + perm.principal.origin + ", URI: " + uri.spec
+    );
+  });
+}
+
+function matches_weak(perm, uris) {
+  uris.forEach(uri => {
+    Assert.ok(
+      !perm.matchesURI(uri, true),
+      "perm: " + perm.principal.origin + ", URI: " + uri.spec
+    );
+    Assert.ok(
+      perm.matchesURI(uri, false),
+      "perm: " + perm.principal.origin + ", URI: " + uri.spec
+    );
+  });
+}
+
+function matches_never(perm, uris) {
+  uris.forEach(uri => {
+    Assert.ok(
+      !perm.matchesURI(uri, true),
+      "perm: " + perm.principal.origin + ", URI: " + uri.spec
+    );
+    Assert.ok(
+      !perm.matchesURI(uri, false),
+      "perm: " + perm.principal.origin + ", URI: " + uri.spec
+    );
+  });
+}
+
+function mk_permission(uri) {
+  let pm = Services.perms;
+
+  let secMan = Services.scriptSecurityManager;
+
+  // Get the permission from the principal!
+  let principal = secMan.createContentPrincipal(uri, {});
+
+  pm.addFromPrincipal(principal, "test/matchesuri", pm.ALLOW_ACTION);
+  let permission = pm.getPermissionObject(principal, "test/matchesuri", true);
+
+  return permission;
+}
+
+function run_test() {
+  // initialize the permission manager service
+  let pm = Services.perms;
+
+  let fileprefix = "file:///";
+  if (Services.appinfo.OS == "WINNT") {
+    // Windows rejects files if they don't have a drive. See Bug 1180870
+    fileprefix += "c:/";
+  }
+
+  // Add some permissions
+  let uri0 = NetUtil.newURI("http://google.com:9091/just/a/path");
+  let uri1 = NetUtil.newURI("http://hangouts.google.com:9091/some/path");
+  let uri2 = NetUtil.newURI("http://google.com:9091/");
+  let uri3 = NetUtil.newURI("http://google.org:9091/");
+  let uri4 = NetUtil.newURI("http://deeper.hangouts.google.com:9091/");
+  let uri5 = NetUtil.newURI("https://google.com/just/a/path");
+  let uri6 = NetUtil.newURI("https://hangouts.google.com");
+  let uri7 = NetUtil.newURI("https://google.com/");
+
+  let fileuri1 = NetUtil.newURI(fileprefix + "a/file/path");
+  let fileuri2 = NetUtil.newURI(fileprefix + "a/file/path/deeper");
+  let fileuri3 = NetUtil.newURI(fileprefix + "a/file/otherpath");
+
+  {
+    let perm = mk_permission(uri0);
+    matches_always(perm, [uri0, uri2]);
+    matches_weak(perm, [uri1, uri4]);
+    matches_never(perm, [uri3, uri5, uri6, uri7, fileuri1, fileuri2, fileuri3]);
+  }
+
+  {
+    let perm = mk_permission(uri1);
+    matches_always(perm, [uri1]);
+    matches_weak(perm, [uri4]);
+    matches_never(perm, [
+      uri0,
+      uri2,
+      uri3,
+      uri5,
+      uri6,
+      uri7,
+      fileuri1,
+      fileuri2,
+      fileuri3,
+    ]);
+  }
+
+  {
+    let perm = mk_permission(uri2);
+    matches_always(perm, [uri0, uri2]);
+    matches_weak(perm, [uri1, uri4]);
+    matches_never(perm, [uri3, uri5, uri6, uri7, fileuri1, fileuri2, fileuri3]);
+  }
+
+  {
+    let perm = mk_permission(uri3);
+    matches_always(perm, [uri3]);
+    matches_weak(perm, []);
+    matches_never(perm, [
+      uri1,
+      uri2,
+      uri4,
+      uri5,
+      uri6,
+      uri7,
+      fileuri1,
+      fileuri2,
+      fileuri3,
+    ]);
+  }
+
+  {
+    let perm = mk_permission(uri4);
+    matches_always(perm, [uri4]);
+    matches_weak(perm, []);
+    matches_never(perm, [
+      uri1,
+      uri2,
+      uri3,
+      uri5,
+      uri6,
+      uri7,
+      fileuri1,
+      fileuri2,
+      fileuri3,
+    ]);
+  }
+
+  {
+    let perm = mk_permission(uri5);
+    matches_always(perm, [uri5, uri7]);
+    matches_weak(perm, [uri6]);
+    matches_never(perm, [
+      uri0,
+      uri1,
+      uri2,
+      uri3,
+      uri4,
+      fileuri1,
+      fileuri2,
+      fileuri3,
+    ]);
+  }
+
+  {
+    let perm = mk_permission(uri6);
+    matches_always(perm, [uri6]);
+    matches_weak(perm, []);
+    matches_never(perm, [
+      uri0,
+      uri1,
+      uri2,
+      uri3,
+      uri4,
+      uri5,
+      uri7,
+      fileuri1,
+      fileuri2,
+      fileuri3,
+    ]);
+  }
+
+  {
+    let perm = mk_permission(uri7);
+    matches_always(perm, [uri5, uri7]);
+    matches_weak(perm, [uri6]);
+    matches_never(perm, [
+      uri0,
+      uri1,
+      uri2,
+      uri3,
+      uri4,
+      fileuri1,
+      fileuri2,
+      fileuri3,
+    ]);
+  }
+
+  {
+    let perm = mk_permission(fileuri1);
+    matches_always(perm, [fileuri1]);
+    matches_weak(perm, []);
+    matches_never(perm, [
+      uri0,
+      uri1,
+      uri2,
+      uri3,
+      uri4,
+      uri5,
+      uri6,
+      uri7,
+      fileuri2,
+      fileuri3,
+    ]);
+  }
+
+  {
+    let perm = mk_permission(fileuri2);
+    matches_always(perm, [fileuri2]);
+    matches_weak(perm, []);
+    matches_never(perm, [
+      uri0,
+      uri1,
+      uri2,
+      uri3,
+      uri4,
+      uri5,
+      uri6,
+      uri7,
+      fileuri1,
+      fileuri3,
+    ]);
+  }
+
+  {
+    let perm = mk_permission(fileuri3);
+    matches_always(perm, [fileuri3]);
+    matches_weak(perm, []);
+    matches_never(perm, [
+      uri0,
+      uri1,
+      uri2,
+      uri3,
+      uri4,
+      uri5,
+      uri6,
+      uri7,
+      fileuri1,
+      fileuri2,
+    ]);
+  }
+
+  // Clean up!
+  pm.removeAll();
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_migrate_10-11.js b/extensions/permissions/test/unit/test_permmanager_migrate_10-11.js
new file mode 100644
index 0000000000..c0d30865ee
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_migrate_10-11.js
@@ -0,0 +1,196 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+ChromeUtils.defineESModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.sys.mjs",
+});
+
+var PERMISSIONS_FILE_NAME = "permissions.sqlite";
+
+function GetPermissionsFile(profile) {
+  let file = profile.clone();
+  file.append(PERMISSIONS_FILE_NAME);
+  return file;
+}
+
+add_task(async function test() {
+  // Create and set up the permissions database.
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  let profile = do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.equal(pm.all.length, 0, "No cookies");
+
+  let db = Services.storage.openDatabase(GetPermissionsFile(profile));
+  db.schemaVersion = 10;
+
+  let stmt6Insert = db.createStatement(
+    "INSERT INTO moz_perms (" +
+      "id, origin, type, permission, expireType, expireTime, modificationTime" +
+      ") VALUES (" +
+      ":id, :origin, :type, :permission, :expireType, :expireTime, :modificationTime" +
+      ")"
+  );
+
+  let id = 0;
+
+  function insertOrigin(
+    origin,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime
+  ) {
+    let thisId = id++;
+
+    stmt6Insert.bindByName("id", thisId);
+    stmt6Insert.bindByName("origin", origin);
+    stmt6Insert.bindByName("type", type);
+    stmt6Insert.bindByName("permission", permission);
+    stmt6Insert.bindByName("expireType", expireType);
+    stmt6Insert.bindByName("expireTime", expireTime);
+    stmt6Insert.bindByName("modificationTime", modificationTime);
+
+    try {
+      stmt6Insert.execute();
+    } finally {
+      stmt6Insert.reset();
+    }
+
+    return {
+      id: thisId,
+      origin,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+    };
+  }
+
+  insertOrigin(
+    "https://foo.com",
+    "storageAccessAPI^https://foo.com",
+    2,
+    0,
+    0,
+    0
+  );
+  insertOrigin(
+    "http://foo.com",
+    "storageAccessAPI^https://bar.com^https://foo.com",
+    2,
+    0,
+    0,
+    0
+  );
+  insertOrigin(
+    "http://foo.com",
+    "storageAccessAPI^https://bar.com^https://baz.com",
+    2,
+    0,
+    0,
+    0
+  );
+  insertOrigin("http://foo.com^inBrowser=1", "A", 2, 0, 0, 0);
+
+  // CLose the db connection
+  stmt6Insert.finalize();
+  db.close();
+  db = null;
+
+  let expected = [
+    ["https://foo.com", "storageAccessAPI^https://foo.com", 2, 0, 0, 0],
+    ["http://foo.com", "storageAccessAPI^https://bar.com", 2, 0, 0, 0],
+    ["http://foo.com", "storageAccessAPI^https://bar.com", 2, 0, 0, 0],
+    ["http://foo.com^inBrowser=1", "A", 2, 0, 0, 0],
+  ];
+
+  let found = expected.map(it => 0);
+
+  // Add some places to the places database
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("https://foo.com/some/other/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("ftp://some.subdomain.of.foo.com:8000/some/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(Services.io.newURI("ftp://127.0.0.1:8080"));
+  await PlacesTestUtils.addVisits(Services.io.newURI("https://localhost:8080"));
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Force initialization of the PermissionManager
+  for (let permission of Services.perms.all) {
+    let isExpected = false;
+
+    expected.forEach((it, i) => {
+      if (
+        permission.principal.origin == it[0] &&
+        permission.type == it[1] &&
+        permission.capability == it[2] &&
+        permission.expireType == it[3] &&
+        permission.expireTime == it[4]
+      ) {
+        isExpected = true;
+        found[i]++;
+      }
+    });
+
+    Assert.ok(
+      isExpected,
+      "Permission " +
+        (isExpected ? "should" : "shouldn't") +
+        " be in permission database: " +
+        permission.principal.origin +
+        ", " +
+        permission.type +
+        ", " +
+        permission.capability +
+        ", " +
+        permission.expireType +
+        ", " +
+        permission.expireTime
+    );
+  }
+
+  found.forEach((count, i) => {
+    Assert.ok(
+      count == 1,
+      "Expected count = 1, got count = " +
+        count +
+        " for permission " +
+        expected[i]
+    );
+  });
+
+  // Check to make sure that all of the tables which we care about are present
+  {
+    db = Services.storage.openDatabase(GetPermissionsFile(profile));
+    Assert.ok(db.tableExists("moz_perms"));
+    Assert.ok(db.tableExists("moz_hosts"));
+    Assert.ok(!db.tableExists("moz_perms_v6"));
+
+    let mozHostsCount = db.createStatement("SELECT count(*) FROM moz_hosts");
+    try {
+      mozHostsCount.executeStep();
+      Assert.equal(mozHostsCount.getInt64(0), 0);
+    } finally {
+      mozHostsCount.finalize();
+    }
+
+    let mozPermsCount = db.createStatement("SELECT count(*) FROM moz_perms");
+    try {
+      mozPermsCount.executeStep();
+      Assert.equal(mozPermsCount.getInt64(0), expected.length);
+    } finally {
+      mozPermsCount.finalize();
+    }
+
+    db.close();
+  }
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_migrate_11-12.js b/extensions/permissions/test/unit/test_permmanager_migrate_11-12.js
new file mode 100644
index 0000000000..97170a9240
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_migrate_11-12.js
@@ -0,0 +1,230 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+ChromeUtils.defineESModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.sys.mjs",
+});
+
+var PERMISSIONS_FILE_NAME = "permissions.sqlite";
+
+function GetPermissionsFile(profile) {
+  let file = profile.clone();
+  file.append(PERMISSIONS_FILE_NAME);
+  return file;
+}
+
+add_task(async function test() {
+  // Create and set up the permissions database.
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  let profile = do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.equal(pm.all.length, 0, "No cookies");
+
+  let db = Services.storage.openDatabase(GetPermissionsFile(profile));
+  db.schemaVersion = 11;
+
+  let stmt6Insert = db.createStatement(
+    "INSERT INTO moz_perms (" +
+      "id, origin, type, permission, expireType, expireTime, modificationTime" +
+      ") VALUES (" +
+      ":id, :origin, :type, :permission, :expireType, :expireTime, :modificationTime" +
+      ")"
+  );
+
+  let id = 0;
+
+  function insertOrigin(
+    origin,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime
+  ) {
+    let thisId = id++;
+
+    stmt6Insert.bindByName("id", thisId);
+    stmt6Insert.bindByName("origin", origin);
+    stmt6Insert.bindByName("type", type);
+    stmt6Insert.bindByName("permission", permission);
+    stmt6Insert.bindByName("expireType", expireType);
+    stmt6Insert.bindByName("expireTime", expireTime);
+    stmt6Insert.bindByName("modificationTime", modificationTime);
+
+    try {
+      stmt6Insert.execute();
+    } finally {
+      stmt6Insert.reset();
+    }
+
+    return {
+      id: thisId,
+      origin,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+    };
+  }
+
+  insertOrigin("https://a.com", "3rdPartyStorage^https://b.com", 2, 0, 0, 0);
+  insertOrigin(
+    "https://www.a.com",
+    "3rdPartyStorage^https://www.c.com",
+    2,
+    0,
+    0,
+    0
+  );
+  insertOrigin(
+    "https://localhost",
+    "3rdPartyStorage^http://www.c.com",
+    2,
+    0,
+    0,
+    0
+  );
+
+  insertOrigin(
+    "https://www.b.co.uk",
+    "3rdPartyStorage^https://www.a.co.uk",
+    2,
+    0,
+    0,
+    0
+  );
+
+  insertOrigin(
+    "https://sub.www.b.co.uk",
+    "3rdPartyStorage^https://sub.www.a.co.uk",
+    2,
+    0,
+    0,
+    0
+  );
+
+  insertOrigin(
+    "https://example.b.co.uk",
+    "3rdPartyStorage^https://www.a.co.uk",
+    2,
+    0,
+    0,
+    0
+  );
+
+  insertOrigin(
+    "https://[::1]",
+    "3rdPartyStorage^https://www.a.co.uk",
+    2,
+    0,
+    0,
+    0
+  );
+  // Close the db connection
+  stmt6Insert.finalize();
+  db.close();
+  db = null;
+  info(Services.perms.all);
+
+  let expected = [
+    ["https://a.com", "3rdPartyStorage^https://b.com", 2, 0, 0, 0],
+    ["https://a.com", "3rdPartyStorage^https://www.c.com", 2, 0, 0, 0],
+    ["https://localhost", "3rdPartyStorage^http://www.c.com", 2, 0, 0, 0],
+    ["https://b.co.uk", "3rdPartyStorage^https://www.a.co.uk", 2, 0, 0, 0],
+    ["https://b.co.uk", "3rdPartyStorage^https://sub.www.a.co.uk", 2, 0, 0, 0],
+    ["https://[::1]", "3rdPartyStorage^https://www.a.co.uk", 2, 0, 0, 0],
+  ];
+
+  let found = expected.map(it => 0);
+
+  // Add some places to the places database
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("https://foo.com/some/other/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("ftp://some.subdomain.of.foo.com:8000/some/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(Services.io.newURI("ftp://127.0.0.1:8080"));
+  await PlacesTestUtils.addVisits(Services.io.newURI("https://localhost:8080"));
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  info(Services.perms.all);
+
+  // Force initialization of the PermissionManager
+  for (let permission of Services.perms.all) {
+    let isExpected = false;
+
+    expected.forEach((it, i) => {
+      if (
+        permission.principal.origin == it[0] &&
+        permission.type == it[1] &&
+        permission.capability == it[2] &&
+        permission.expireType == it[3] &&
+        permission.expireTime == it[4]
+      ) {
+        isExpected = true;
+        found[i]++;
+      }
+    });
+
+    Assert.ok(
+      isExpected,
+      "Permission " +
+        (isExpected ? "should" : "shouldn't") +
+        " be in permission database: " +
+        permission.principal.origin +
+        ", " +
+        permission.type +
+        ", " +
+        permission.capability +
+        ", " +
+        permission.expireType +
+        ", " +
+        permission.expireTime
+    );
+  }
+  info(expected);
+  info(found);
+
+  found.forEach((count, i) => {
+    Assert.ok(
+      count == 1,
+      "Expected count = 1, got count = " +
+        count +
+        " for permission " +
+        expected[i]
+    );
+  });
+
+  // Check to make sure that all of the tables which we care about are present
+  {
+    db = Services.storage.openDatabase(GetPermissionsFile(profile));
+    Assert.ok(db.tableExists("moz_perms"));
+    Assert.ok(db.tableExists("moz_hosts"));
+    Assert.ok(!db.tableExists("moz_perms_v6"));
+
+    let mozHostsCount = db.createStatement("SELECT count(*) FROM moz_hosts");
+    try {
+      mozHostsCount.executeStep();
+      Assert.equal(mozHostsCount.getInt64(0), 0);
+    } finally {
+      mozHostsCount.finalize();
+    }
+
+    let mozPermsCount = db.createStatement("SELECT count(*) FROM moz_perms");
+    try {
+      mozPermsCount.executeStep();
+      Assert.equal(mozPermsCount.getInt64(0), expected.length);
+    } finally {
+      mozPermsCount.finalize();
+    }
+
+    db.close();
+  }
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_migrate_4-7.js b/extensions/permissions/test/unit/test_permmanager_migrate_4-7.js
new file mode 100644
index 0000000000..857e0a462c
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_migrate_4-7.js
@@ -0,0 +1,264 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+ChromeUtils.defineESModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.sys.mjs",
+});
+
+var PERMISSIONS_FILE_NAME = "permissions.sqlite";
+
+function GetPermissionsFile(profile) {
+  let file = profile.clone();
+  file.append(PERMISSIONS_FILE_NAME);
+  return file;
+}
+
+add_task(async function test() {
+  // Create and set up the permissions database.
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  let profile = do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.equal(pm.all.length, 0, "No cookies");
+
+  let db = Services.storage.openDatabase(GetPermissionsFile(profile));
+  db.schemaVersion = 4;
+  db.executeSimpleSQL("DROP TABLE moz_perms");
+  db.executeSimpleSQL("DROP TABLE moz_hosts");
+
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_hosts (" +
+      " id INTEGER PRIMARY KEY" +
+      ",host TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ",appId INTEGER" +
+      ",isInBrowserElement INTEGER" +
+      ")"
+  );
+
+  let stmtInsert = db.createStatement(
+    "INSERT INTO moz_hosts (" +
+      "id, host, type, permission, expireType, expireTime, modificationTime, appId, isInBrowserElement" +
+      ") VALUES (" +
+      ":id, :host, :type, :permission, :expireType, :expireTime, :modificationTime, :appId, :isInBrowserElement" +
+      ")"
+  );
+
+  let id = 0;
+
+  function insertHost(
+    host,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime,
+    appId,
+    isInBrowserElement
+  ) {
+    let thisId = id++;
+
+    stmtInsert.bindByName("id", thisId);
+    stmtInsert.bindByName("host", host);
+    stmtInsert.bindByName("type", type);
+    stmtInsert.bindByName("permission", permission);
+    stmtInsert.bindByName("expireType", expireType);
+    stmtInsert.bindByName("expireTime", expireTime);
+    stmtInsert.bindByName("modificationTime", modificationTime);
+    stmtInsert.bindByName("appId", appId);
+    stmtInsert.bindByName("isInBrowserElement", isInBrowserElement);
+
+    try {
+      stmtInsert.execute();
+    } finally {
+      stmtInsert.reset();
+    }
+
+    return {
+      id: thisId,
+      host,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+      appId,
+      isInBrowserElement,
+    };
+  }
+
+  // Add some rows to the database
+  // eslint-disable-next-line no-unused-vars
+  let created = [
+    insertHost("foo.com", "A", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "C", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "A", 1, 0, 0, 0, 1000, false),
+    insertHost("foo.com", "A", 1, 0, 0, 0, 2000, true),
+    insertHost("sub.foo.com", "B", 1, 0, 0, 0, 0, false),
+    insertHost("subber.sub.foo.com", "B", 1, 0, 0, 0, 0, false),
+    insertHost("bar.ca", "B", 1, 0, 0, 0, 0, false),
+    insertHost("bar.ca", "B", 1, 0, 0, 0, 1000, false),
+    insertHost("bar.ca", "A", 1, 0, 0, 0, 1000, true),
+    insertHost("localhost", "A", 1, 0, 0, 0, 0, false),
+    insertHost("127.0.0.1", "A", 1, 0, 0, 0, 0, false),
+    insertHost("192.0.2.235", "A", 1, 0, 0, 0, 0, false),
+    insertHost("file:///some/path/to/file.html", "A", 1, 0, 0, 0, 0, false),
+    insertHost("file:///another/file.html", "A", 1, 0, 0, 0, 0, false),
+    insertHost(
+      "moz-nullprincipal:{8695105a-adbe-4e4e-8083-851faa5ca2d7}",
+      "A",
+      1,
+      0,
+      0,
+      0,
+      0,
+      false
+    ),
+    insertHost(
+      "moz-nullprincipal:{12ahjksd-akjs-asd3-8393-asdu2189asdu}",
+      "B",
+      1,
+      0,
+      0,
+      0,
+      0,
+      false
+    ),
+    insertHost("<file>", "A", 1, 0, 0, 0, 0, false),
+    insertHost("<file>", "B", 1, 0, 0, 0, 0, false),
+  ];
+
+  // CLose the db connection
+  stmtInsert.finalize();
+  db.close();
+  stmtInsert = null;
+  db = null;
+
+  let expected = [
+    // The http:// entries under foo.com won't be inserted, as there are history entries for foo.com,
+    // and http://foo.com or a subdomain are never visited.
+    // ["http://foo.com", "A", 1, 0, 0],
+    // ["http://foo.com^inBrowser=1", "A", 1, 0, 0],
+    //
+    // Because we search for port/scheme combinations under eTLD+1, we should not have http:// entries
+    // for subdomains of foo.com either
+    // ["http://sub.foo.com", "B", 1, 0, 0],
+    // ["http://subber.sub.foo.com", "B", 1, 0, 0],
+
+    ["https://foo.com", "A", 1, 0, 0],
+    ["https://foo.com", "C", 1, 0, 0],
+    ["https://foo.com^inBrowser=1", "A", 1, 0, 0],
+    ["https://sub.foo.com", "B", 1, 0, 0],
+    ["https://subber.sub.foo.com", "B", 1, 0, 0],
+
+    // bar.ca will have both http:// and https:// for all entries, because there are no associated history entries
+    ["http://bar.ca", "B", 1, 0, 0],
+    ["https://bar.ca", "B", 1, 0, 0],
+    ["http://bar.ca^inBrowser=1", "A", 1, 0, 0],
+    ["https://bar.ca^inBrowser=1", "A", 1, 0, 0],
+    ["file:///some/path/to/file.html", "A", 1, 0, 0],
+    ["file:///another/file.html", "A", 1, 0, 0],
+
+    // Because we put ftp://some.subdomain.of.foo.com:8000/some/subdirectory in the history, we should
+    // also have these entries
+    ["ftp://foo.com:8000", "A", 1, 0, 0],
+    ["ftp://foo.com:8000", "C", 1, 0, 0],
+    ["ftp://foo.com:8000^inBrowser=1", "A", 1, 0, 0],
+
+    // In addition, because we search for port/scheme combinations under eTLD+1, we should have the
+    // following entries
+    ["ftp://sub.foo.com:8000", "B", 1, 0, 0],
+    ["ftp://subber.sub.foo.com:8000", "B", 1, 0, 0],
+
+    // Make sure that we also support localhost, and IP addresses
+    ["http://localhost", "A", 1, 0, 0],
+    ["https://localhost", "A", 1, 0, 0],
+    ["http://127.0.0.1", "A", 1, 0, 0],
+    ["https://127.0.0.1", "A", 1, 0, 0],
+    ["http://192.0.2.235", "A", 1, 0, 0],
+    ["https://192.0.2.235", "A", 1, 0, 0],
+  ];
+
+  let found = expected.map(it => 0);
+
+  // Add some places to the places database
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("https://foo.com/some/other/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("ftp://some.subdomain.of.foo.com:8000/some/subdirectory")
+  );
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Force initialization of the PermissionManager
+  for (let permission of Services.perms.all) {
+    let isExpected = false;
+
+    expected.forEach((it, i) => {
+      if (
+        permission.principal.origin == it[0] &&
+        permission.type == it[1] &&
+        permission.capability == it[2] &&
+        permission.expireType == it[3] &&
+        permission.expireTime == it[4]
+      ) {
+        isExpected = true;
+        found[i]++;
+      }
+    });
+
+    Assert.ok(
+      isExpected,
+      "Permission " +
+        (isExpected ? "should" : "shouldn't") +
+        " be in permission database: " +
+        permission.principal.origin +
+        ", " +
+        permission.type +
+        ", " +
+        permission.capability +
+        ", " +
+        permission.expireType +
+        ", " +
+        permission.expireTime
+    );
+  }
+
+  found.forEach((count, i) => {
+    Assert.ok(
+      count == 1,
+      "Expected count = 1, got count = " +
+        count +
+        " for permission " +
+        expected[i]
+    );
+  });
+
+  // Check to make sure that all of the tables which we care about are present
+  {
+    db = Services.storage.openDatabase(GetPermissionsFile(profile));
+    Assert.ok(db.tableExists("moz_perms"));
+    Assert.ok(db.tableExists("moz_hosts"));
+    Assert.ok(!db.tableExists("moz_hosts_is_backup"));
+    Assert.ok(!db.tableExists("moz_perms_v6"));
+
+    // The moz_hosts table should still exist but be empty
+    let mozHostsCount = db.createStatement("SELECT count(*) FROM moz_hosts");
+    try {
+      mozHostsCount.executeStep();
+      Assert.equal(mozHostsCount.getInt64(0), 0);
+    } finally {
+      mozHostsCount.finalize();
+    }
+
+    db.close();
+  }
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_migrate_4-7_no_history.js b/extensions/permissions/test/unit/test_permmanager_migrate_4-7_no_history.js
new file mode 100644
index 0000000000..aa735e534a
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_migrate_4-7_no_history.js
@@ -0,0 +1,279 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var PERMISSIONS_FILE_NAME = "permissions.sqlite";
+
+/*
+ * Prevent the nsINavHistoryService from being avaliable for the migration
+ */
+
+var CONTRACT_ID = "@mozilla.org/browser/nav-history-service;1";
+var factory = {
+  createInstance() {
+    throw new Error("There is no history service");
+  },
+  QueryInterface: ChromeUtils.generateQI(["nsIFactory"]),
+};
+
+var newClassID = Services.uuid.generateUUID();
+
+var registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
+var oldClassID = registrar.contractIDToCID(CONTRACT_ID);
+// TODO: There was a var oldFactory = here causing linter errors as it
+// was unused. We should check if this function call is needed at all.
+Components.manager.getClassObject(Cc[CONTRACT_ID], Ci.nsIFactory);
+registrar.registerFactory(newClassID, "", CONTRACT_ID, factory);
+
+function cleanupFactory() {
+  registrar.unregisterFactory(newClassID, factory);
+  registrar.registerFactory(oldClassID, "", CONTRACT_ID, null);
+}
+
+function GetPermissionsFile(profile) {
+  let file = profile.clone();
+  file.append(PERMISSIONS_FILE_NAME);
+  return file;
+}
+
+/*
+ * Done nsINavHistoryService code
+ */
+
+add_task(function test() {
+  // Create and set up the permissions database.
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  let profile = do_get_profile();
+
+  // Make sure that we can't resolve the nsINavHistoryService
+  try {
+    Cc["@mozilla.org/browser/nav-history-service;1"].getService(
+      Ci.nsINavHistoryService
+    );
+    Assert.ok(false, "There shouldn't have been a nsINavHistoryService");
+  } catch (e) {
+    Assert.ok(true, "There wasn't a nsINavHistoryService");
+  }
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.ok(pm.all.length >= 0, "Permission manager not initialized?");
+
+  let db = Services.storage.openDatabase(GetPermissionsFile(profile));
+  db.schemaVersion = 4;
+  db.executeSimpleSQL("DROP TABLE moz_perms");
+  db.executeSimpleSQL("DROP TABLE moz_hosts");
+
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_hosts (" +
+      " id INTEGER PRIMARY KEY" +
+      ",host TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ",appId INTEGER" +
+      ",isInBrowserElement INTEGER" +
+      ")"
+  );
+
+  let stmtInsert = db.createStatement(
+    "INSERT INTO moz_hosts (" +
+      "id, host, type, permission, expireType, expireTime, modificationTime, appId, isInBrowserElement" +
+      ") VALUES (" +
+      ":id, :host, :type, :permission, :expireType, :expireTime, :modificationTime, :appId, :isInBrowserElement" +
+      ")"
+  );
+
+  let id = 0;
+
+  function insertHost(
+    host,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime,
+    appId,
+    isInBrowserElement
+  ) {
+    let thisId = id++;
+
+    stmtInsert.bindByName("id", thisId);
+    stmtInsert.bindByName("host", host);
+    stmtInsert.bindByName("type", type);
+    stmtInsert.bindByName("permission", permission);
+    stmtInsert.bindByName("expireType", expireType);
+    stmtInsert.bindByName("expireTime", expireTime);
+    stmtInsert.bindByName("modificationTime", modificationTime);
+    stmtInsert.bindByName("appId", appId);
+    stmtInsert.bindByName("isInBrowserElement", isInBrowserElement);
+
+    try {
+      stmtInsert.execute();
+    } finally {
+      stmtInsert.reset();
+    }
+
+    return {
+      id: thisId,
+      host,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+      appId,
+      isInBrowserElement,
+    };
+  }
+
+  // Add some rows to the database
+  // eslint-disable-next-line no-unused-vars
+  let created = [
+    insertHost("foo.com", "A", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "C", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "A", 1, 0, 0, 0, 1000, false),
+    insertHost("foo.com", "A", 1, 0, 0, 0, 2000, true),
+    insertHost("sub.foo.com", "B", 1, 0, 0, 0, 0, false),
+    insertHost("subber.sub.foo.com", "B", 1, 0, 0, 0, 0, false),
+    insertHost("bar.ca", "B", 1, 0, 0, 0, 0, false),
+    insertHost("bar.ca", "B", 1, 0, 0, 0, 1000, false),
+    insertHost("bar.ca", "A", 1, 0, 0, 0, 1000, true),
+    insertHost("localhost", "A", 1, 0, 0, 0, 0, false),
+    insertHost("127.0.0.1", "A", 1, 0, 0, 0, 0, false),
+    insertHost("263.123.555.676", "A", 1, 0, 0, 0, 0, false),
+    insertHost("file:///some/path/to/file.html", "A", 1, 0, 0, 0, 0, false),
+    insertHost("file:///another/file.html", "A", 1, 0, 0, 0, 0, false),
+    insertHost(
+      "moz-nullprincipal:{8695105a-adbe-4e4e-8083-851faa5ca2d7}",
+      "A",
+      1,
+      0,
+      0,
+      0,
+      0,
+      false
+    ),
+    insertHost(
+      "moz-nullprincipal:{12ahjksd-akjs-asd3-8393-asdu2189asdu}",
+      "B",
+      1,
+      0,
+      0,
+      0,
+      0,
+      false
+    ),
+    insertHost("<file>", "A", 1, 0, 0, 0, 0, false),
+    insertHost("<file>", "B", 1, 0, 0, 0, 0, false),
+  ];
+
+  // CLose the db connection
+  stmtInsert.finalize();
+  db.close();
+  stmtInsert = null;
+  db = null;
+
+  let expected = [
+    ["http://foo.com", "A", 1, 0, 0],
+    ["http://foo.com", "C", 1, 0, 0],
+    ["http://foo.com^inBrowser=1", "A", 1, 0, 0],
+    ["http://sub.foo.com", "B", 1, 0, 0],
+    ["http://subber.sub.foo.com", "B", 1, 0, 0],
+
+    ["https://foo.com", "A", 1, 0, 0],
+    ["https://foo.com", "C", 1, 0, 0],
+    ["https://foo.com^inBrowser=1", "A", 1, 0, 0],
+    ["https://sub.foo.com", "B", 1, 0, 0],
+    ["https://subber.sub.foo.com", "B", 1, 0, 0],
+
+    // bar.ca will have both http:// and https:// for all entries, because there are no associated history entries
+    ["http://bar.ca", "B", 1, 0, 0],
+    ["https://bar.ca", "B", 1, 0, 0],
+    ["http://bar.ca^inBrowser=1", "A", 1, 0, 0],
+    ["https://bar.ca^inBrowser=1", "A", 1, 0, 0],
+    ["file:///some/path/to/file.html", "A", 1, 0, 0],
+    ["file:///another/file.html", "A", 1, 0, 0],
+
+    // Make sure that we also support localhost, and IP addresses
+    ["http://localhost", "A", 1, 0, 0],
+    ["https://localhost", "A", 1, 0, 0],
+    ["http://127.0.0.1", "A", 1, 0, 0],
+    ["https://127.0.0.1", "A", 1, 0, 0],
+    ["http://263.123.555.676", "A", 1, 0, 0],
+    ["https://263.123.555.676", "A", 1, 0, 0],
+  ];
+
+  let found = expected.map(it => 0);
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Force initialization of the PermissionManager
+  for (let permission of Services.perms.all) {
+    let isExpected = false;
+
+    expected.forEach((it, i) => {
+      if (
+        permission.principal.origin == it[0] &&
+        permission.type == it[1] &&
+        permission.capability == it[2] &&
+        permission.expireType == it[3] &&
+        permission.expireTime == it[4]
+      ) {
+        isExpected = true;
+        found[i]++;
+      }
+    });
+
+    Assert.ok(
+      isExpected,
+      "Permission " +
+        (isExpected ? "should" : "shouldn't") +
+        " be in permission database: " +
+        permission.principal.origin +
+        ", " +
+        permission.type +
+        ", " +
+        permission.capability +
+        ", " +
+        permission.expireType +
+        ", " +
+        permission.expireTime
+    );
+  }
+
+  found.forEach((count, i) => {
+    Assert.ok(
+      count == 1,
+      "Expected count = 1, got count = " +
+        count +
+        " for permission " +
+        expected[i]
+    );
+  });
+
+  // Check to make sure that all of the tables which we care about are present
+  {
+    db = Services.storage.openDatabase(GetPermissionsFile(profile));
+    Assert.ok(db.tableExists("moz_perms"));
+    Assert.ok(db.tableExists("moz_hosts"));
+    Assert.ok(!db.tableExists("moz_hosts_is_backup"));
+    Assert.ok(!db.tableExists("moz_perms_v6"));
+
+    // The moz_hosts table should still exist but be empty
+    let mozHostsCount = db.createStatement("SELECT count(*) FROM moz_hosts");
+    try {
+      mozHostsCount.executeStep();
+      Assert.equal(mozHostsCount.getInt64(0), 0);
+    } finally {
+      mozHostsCount.finalize();
+    }
+
+    db.close();
+  }
+
+  cleanupFactory();
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_migrate_5-7a.js b/extensions/permissions/test/unit/test_permmanager_migrate_5-7a.js
new file mode 100644
index 0000000000..8ea03d5e16
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_migrate_5-7a.js
@@ -0,0 +1,365 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+ChromeUtils.defineESModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.sys.mjs",
+});
+
+var PERMISSIONS_FILE_NAME = "permissions.sqlite";
+
+function GetPermissionsFile(profile) {
+  let file = profile.clone();
+  file.append(PERMISSIONS_FILE_NAME);
+  return file;
+}
+
+add_task(async function test() {
+  // Create and set up the permissions database.
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  let profile = do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.equal(pm.all.length, 0, "No cookies");
+
+  let db = Services.storage.openDatabase(GetPermissionsFile(profile));
+  db.schemaVersion = 5;
+  db.executeSimpleSQL("DROP TABLE moz_perms");
+  db.executeSimpleSQL("DROP TABLE moz_hosts");
+
+  /*
+   * V5 table
+   */
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_hosts (" +
+      " id INTEGER PRIMARY KEY" +
+      ",origin TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ")"
+  );
+
+  let stmt5Insert = db.createStatement(
+    "INSERT INTO moz_hosts (" +
+      "id, origin, type, permission, expireType, expireTime, modificationTime" +
+      ") VALUES (" +
+      ":id, :origin, :type, :permission, :expireType, :expireTime, :modificationTime" +
+      ")"
+  );
+
+  /*
+   * V4 table
+   */
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_hosts_v4 (" +
+      " id INTEGER PRIMARY KEY" +
+      ",host TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ",appId INTEGER" +
+      ",isInBrowserElement INTEGER" +
+      ")"
+  );
+
+  let stmtInsert = db.createStatement(
+    "INSERT INTO moz_hosts_v4 (" +
+      "id, host, type, permission, expireType, expireTime, modificationTime, appId, isInBrowserElement" +
+      ") VALUES (" +
+      ":id, :host, :type, :permission, :expireType, :expireTime, :modificationTime, :appId, :isInBrowserElement" +
+      ")"
+  );
+
+  let id = 0;
+
+  function insertOrigin(
+    origin,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime
+  ) {
+    let thisId = id++;
+
+    stmt5Insert.bindByName("id", thisId);
+    stmt5Insert.bindByName("origin", origin);
+    stmt5Insert.bindByName("type", type);
+    stmt5Insert.bindByName("permission", permission);
+    stmt5Insert.bindByName("expireType", expireType);
+    stmt5Insert.bindByName("expireTime", expireTime);
+    stmt5Insert.bindByName("modificationTime", modificationTime);
+
+    try {
+      stmt5Insert.execute();
+    } finally {
+      stmt5Insert.reset();
+    }
+
+    return {
+      id: thisId,
+      origin,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+    };
+  }
+  function insertHost(
+    host,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime,
+    appId,
+    isInBrowserElement
+  ) {
+    let thisId = id++;
+
+    stmtInsert.bindByName("id", thisId);
+    stmtInsert.bindByName("host", host);
+    stmtInsert.bindByName("type", type);
+    stmtInsert.bindByName("permission", permission);
+    stmtInsert.bindByName("expireType", expireType);
+    stmtInsert.bindByName("expireTime", expireTime);
+    stmtInsert.bindByName("modificationTime", modificationTime);
+    stmtInsert.bindByName("appId", appId);
+    stmtInsert.bindByName("isInBrowserElement", isInBrowserElement);
+
+    try {
+      stmtInsert.execute();
+    } finally {
+      stmtInsert.reset();
+    }
+
+    return {
+      id: thisId,
+      host,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+      appId,
+      isInBrowserElement,
+    };
+  }
+
+  let created5 = [
+    insertOrigin("https://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com^inBrowser=1", "A", 2, 0, 0, 0),
+  ];
+
+  // Add some rows to the database
+  // eslint-disable-next-line no-unused-vars
+  let created = [
+    insertHost("foo.com", "A", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "C", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "A", 1, 0, 0, 0, 1000, false),
+    insertHost("foo.com", "A", 1, 0, 0, 0, 2000, true),
+    insertHost("sub.foo.com", "B", 1, 0, 0, 0, 0, false),
+    insertHost("subber.sub.foo.com", "B", 1, 0, 0, 0, 0, false),
+    insertHost("bar.ca", "B", 1, 0, 0, 0, 0, false),
+    insertHost("bar.ca", "B", 1, 0, 0, 0, 1000, false),
+    insertHost("bar.ca", "A", 1, 0, 0, 0, 1000, true),
+    insertHost("localhost", "A", 1, 0, 0, 0, 0, false),
+    insertHost("127.0.0.1", "A", 1, 0, 0, 0, 0, false),
+    insertHost("192.0.2.235", "A", 1, 0, 0, 0, 0, false),
+    insertHost("file:///some/path/to/file.html", "A", 1, 0, 0, 0, 0, false),
+    insertHost("file:///another/file.html", "A", 1, 0, 0, 0, 0, false),
+    insertHost(
+      "moz-nullprincipal:{8695105a-adbe-4e4e-8083-851faa5ca2d7}",
+      "A",
+      1,
+      0,
+      0,
+      0,
+      0,
+      false
+    ),
+    insertHost(
+      "moz-nullprincipal:{12ahjksd-akjs-asd3-8393-asdu2189asdu}",
+      "B",
+      1,
+      0,
+      0,
+      0,
+      0,
+      false
+    ),
+    insertHost("<file>", "A", 1, 0, 0, 0, 0, false),
+    insertHost("<file>", "B", 1, 0, 0, 0, 0, false),
+  ];
+
+  // CLose the db connection
+  stmt5Insert.finalize();
+  stmtInsert.finalize();
+  db.close();
+  stmtInsert = null;
+  db = null;
+
+  let expected = [
+    // The http:// entries under foo.com won't be inserted, as there are history entries for foo.com,
+    // and http://foo.com or a subdomain are never visited.
+    // ["http://foo.com", "A", 1, 0, 0],
+    // ["http://foo.com^inBrowser=1", "A", 1, 0, 0],
+    //
+    // Because we search for port/scheme combinations under eTLD+1, we should not have http:// entries
+    // for subdomains of foo.com either
+    // ["http://sub.foo.com", "B", 1, 0, 0],
+    // ["http://subber.sub.foo.com", "B", 1, 0, 0],
+
+    ["https://foo.com", "A", 1, 0, 0],
+    ["https://foo.com", "C", 1, 0, 0],
+    ["https://foo.com^inBrowser=1", "A", 1, 0, 0],
+    ["https://sub.foo.com", "B", 1, 0, 0],
+    ["https://subber.sub.foo.com", "B", 1, 0, 0],
+
+    // bar.ca will have both http:// and https:// for all entries, because there are no associated history entries
+    ["http://bar.ca", "B", 1, 0, 0],
+    ["https://bar.ca", "B", 1, 0, 0],
+    ["http://bar.ca^inBrowser=1", "A", 1, 0, 0],
+    ["https://bar.ca^inBrowser=1", "A", 1, 0, 0],
+    ["file:///some/path/to/file.html", "A", 1, 0, 0],
+    ["file:///another/file.html", "A", 1, 0, 0],
+
+    // Because we put ftp://some.subdomain.of.foo.com:8000/some/subdirectory in the history, we should
+    // also have these entries
+    ["ftp://foo.com:8000", "A", 1, 0, 0],
+    ["ftp://foo.com:8000", "C", 1, 0, 0],
+    ["ftp://foo.com:8000^inBrowser=1", "A", 1, 0, 0],
+
+    // In addition, because we search for port/scheme combinations under eTLD+1, we should have the
+    // following entries
+    ["ftp://sub.foo.com:8000", "B", 1, 0, 0],
+    ["ftp://subber.sub.foo.com:8000", "B", 1, 0, 0],
+
+    // Make sure that we also support localhost, and IP addresses
+    ["http://localhost", "A", 1, 0, 0],
+    ["https://localhost", "A", 1, 0, 0],
+    ["http://127.0.0.1", "A", 1, 0, 0],
+    ["https://127.0.0.1", "A", 1, 0, 0],
+    ["http://192.0.2.235", "A", 1, 0, 0],
+    ["https://192.0.2.235", "A", 1, 0, 0],
+  ];
+
+  let found = expected.map(it => 0);
+
+  // Add some places to the places database
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("https://foo.com/some/other/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("ftp://some.subdomain.of.foo.com:8000/some/subdirectory")
+  );
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Force initialization of the PermissionManager
+  for (let permission of Services.perms.all) {
+    let isExpected = false;
+
+    expected.forEach((it, i) => {
+      if (
+        permission.principal.origin == it[0] &&
+        permission.type == it[1] &&
+        permission.capability == it[2] &&
+        permission.expireType == it[3] &&
+        permission.expireTime == it[4]
+      ) {
+        isExpected = true;
+        found[i]++;
+      }
+    });
+
+    Assert.ok(
+      isExpected,
+      "Permission " +
+        (isExpected ? "should" : "shouldn't") +
+        " be in permission database: " +
+        permission.principal.origin +
+        ", " +
+        permission.type +
+        ", " +
+        permission.capability +
+        ", " +
+        permission.expireType +
+        ", " +
+        permission.expireTime
+    );
+  }
+
+  found.forEach((count, i) => {
+    Assert.ok(
+      count == 1,
+      "Expected count = 1, got count = " +
+        count +
+        " for permission " +
+        expected[i]
+    );
+  });
+
+  // Check to make sure that all of the tables which we care about are present
+  {
+    db = Services.storage.openDatabase(GetPermissionsFile(profile));
+    Assert.ok(db.tableExists("moz_perms"));
+    Assert.ok(db.tableExists("moz_hosts"));
+    Assert.ok(!db.tableExists("moz_hosts_is_backup"));
+    Assert.ok(db.tableExists("moz_perms_v6"));
+
+    // The moz_hosts table should still exist but be empty
+    let mozHostsCount = db.createStatement("SELECT count(*) FROM moz_hosts");
+    try {
+      mozHostsCount.executeStep();
+      Assert.equal(mozHostsCount.getInt64(0), 0);
+    } finally {
+      mozHostsCount.finalize();
+    }
+
+    // Check that the moz_perms_v6 table contains the backup of the entry we created
+    let mozPermsV6Stmt = db.createStatement(
+      "SELECT " +
+        "origin, type, permission, expireType, expireTime, modificationTime " +
+        "FROM moz_perms_v6 WHERE id = :id"
+    );
+    try {
+      // Check that the moz_hosts table still contains the correct values.
+      created5.forEach(it => {
+        mozPermsV6Stmt.reset();
+        mozPermsV6Stmt.bindByName("id", it.id);
+        mozPermsV6Stmt.executeStep();
+        Assert.equal(mozPermsV6Stmt.getUTF8String(0), it.origin);
+        Assert.equal(mozPermsV6Stmt.getUTF8String(1), it.type);
+        Assert.equal(mozPermsV6Stmt.getInt64(2), it.permission);
+        Assert.equal(mozPermsV6Stmt.getInt64(3), it.expireType);
+        Assert.equal(mozPermsV6Stmt.getInt64(4), it.expireTime);
+        Assert.equal(mozPermsV6Stmt.getInt64(5), it.modificationTime);
+      });
+    } finally {
+      mozPermsV6Stmt.finalize();
+    }
+
+    // Check that there are the right number of values
+    let mozPermsV6Count = db.createStatement(
+      "SELECT count(*) FROM moz_perms_v6"
+    );
+    try {
+      mozPermsV6Count.executeStep();
+      Assert.equal(mozPermsV6Count.getInt64(0), created5.length);
+    } finally {
+      mozPermsV6Count.finalize();
+    }
+
+    db.close();
+  }
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_migrate_5-7b.js b/extensions/permissions/test/unit/test_permmanager_migrate_5-7b.js
new file mode 100644
index 0000000000..8c330effa9
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_migrate_5-7b.js
@@ -0,0 +1,203 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var PERMISSIONS_FILE_NAME = "permissions.sqlite";
+
+function GetPermissionsFile(profile) {
+  let file = profile.clone();
+  file.append(PERMISSIONS_FILE_NAME);
+  return file;
+}
+
+add_task(function test() {
+  // Create and set up the permissions database.
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  let profile = do_get_profile();
+
+  var pm = Services.perms;
+  Assert.equal(pm.all.length, 0, "No cookies");
+
+  let db = Services.storage.openDatabase(GetPermissionsFile(profile));
+  db.schemaVersion = 5;
+  db.executeSimpleSQL("DROP TABLE moz_perms");
+  db.executeSimpleSQL("DROP TABLE moz_hosts");
+
+  /*
+   * V5 table
+   */
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_hosts (" +
+      " id INTEGER PRIMARY KEY" +
+      ",origin TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ")"
+  );
+
+  let stmt5Insert = db.createStatement(
+    "INSERT INTO moz_hosts (" +
+      "id, origin, type, permission, expireType, expireTime, modificationTime" +
+      ") VALUES (" +
+      ":id, :origin, :type, :permission, :expireType, :expireTime, :modificationTime" +
+      ")"
+  );
+
+  let id = 0;
+  function insertOrigin(
+    origin,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime
+  ) {
+    let thisId = id++;
+
+    stmt5Insert.bindByName("id", thisId);
+    stmt5Insert.bindByName("origin", origin);
+    stmt5Insert.bindByName("type", type);
+    stmt5Insert.bindByName("permission", permission);
+    stmt5Insert.bindByName("expireType", expireType);
+    stmt5Insert.bindByName("expireTime", expireTime);
+    stmt5Insert.bindByName("modificationTime", modificationTime);
+
+    try {
+      stmt5Insert.execute();
+    } finally {
+      stmt5Insert.reset();
+    }
+
+    return {
+      id: thisId,
+      host: origin,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+    };
+  }
+
+  // eslint-disable-next-line no-unused-vars
+  let created5 = [
+    insertOrigin("https://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com^appId=1000&inBrowser=1", "A", 2, 0, 0, 0),
+
+    insertOrigin("http://127.0.0.1", "B", 2, 0, 0, 0),
+    insertOrigin("http://localhost", "B", 2, 0, 0, 0),
+  ];
+
+  let created4 = []; // Didn't create any v4 entries, so the DB should be empty
+
+  // CLose the db connection
+  stmt5Insert.finalize();
+  db.close();
+  stmt5Insert = null;
+  db = null;
+
+  let expected = [
+    ["https://foo.com", "A", 2, 0, 0, 0],
+    ["http://foo.com", "A", 2, 0, 0, 0],
+    ["http://foo.com^inBrowser=1", "A", 2, 0, 0, 0],
+
+    ["http://127.0.0.1", "B", 2, 0, 0, 0],
+    ["http://localhost", "B", 2, 0, 0, 0],
+  ];
+
+  let found = expected.map(it => 0);
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Force initialization of the PermissionManager
+  for (let permission of Services.perms.all) {
+    let isExpected = false;
+
+    expected.forEach((it, i) => {
+      if (
+        permission.principal.origin == it[0] &&
+        permission.type == it[1] &&
+        permission.capability == it[2] &&
+        permission.expireType == it[3] &&
+        permission.expireTime == it[4]
+      ) {
+        isExpected = true;
+        found[i]++;
+      }
+    });
+
+    Assert.ok(
+      isExpected,
+      "Permission " +
+        (isExpected ? "should" : "shouldn't") +
+        " be in permission database: " +
+        permission.principal.origin +
+        ", " +
+        permission.type +
+        ", " +
+        permission.capability +
+        ", " +
+        permission.expireType +
+        ", " +
+        permission.expireTime
+    );
+  }
+
+  found.forEach((count, i) => {
+    Assert.ok(
+      count == 1,
+      "Expected count = 1, got count = " +
+        count +
+        " for permission " +
+        expected[i]
+    );
+  });
+
+  // Check to make sure that all of the tables which we care about are present
+  {
+    db = Services.storage.openDatabase(GetPermissionsFile(profile));
+    Assert.ok(db.tableExists("moz_perms"));
+    Assert.ok(db.tableExists("moz_hosts"));
+    Assert.ok(!db.tableExists("moz_hosts_is_backup"));
+    Assert.ok(!db.tableExists("moz_perms_v6"));
+
+    let mozHostsStmt = db.createStatement(
+      "SELECT " +
+        "host, type, permission, expireType, expireTime, " +
+        "modificationTime, isInBrowserElement " +
+        "FROM moz_hosts WHERE id = :id"
+    );
+    try {
+      // Check that the moz_hosts table still contains the correct values.
+      created4.forEach(it => {
+        mozHostsStmt.reset();
+        mozHostsStmt.bindByName("id", it.id);
+        mozHostsStmt.executeStep();
+        Assert.equal(mozHostsStmt.getUTF8String(0), it.host);
+        Assert.equal(mozHostsStmt.getUTF8String(1), it.type);
+        Assert.equal(mozHostsStmt.getInt64(2), it.permission);
+        Assert.equal(mozHostsStmt.getInt64(3), it.expireType);
+        Assert.equal(mozHostsStmt.getInt64(4), it.expireTime);
+        Assert.equal(mozHostsStmt.getInt64(5), it.modificationTime);
+        Assert.equal(mozHostsStmt.getInt64(6), it.isInBrowserElement);
+      });
+    } finally {
+      mozHostsStmt.finalize();
+    }
+
+    // Check that there are the right number of values
+    let mozHostsCount = db.createStatement("SELECT count(*) FROM moz_hosts");
+    try {
+      mozHostsCount.executeStep();
+      Assert.equal(mozHostsCount.getInt64(0), created4.length);
+    } finally {
+      mozHostsCount.finalize();
+    }
+
+    db.close();
+  }
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_migrate_6-7a.js b/extensions/permissions/test/unit/test_permmanager_migrate_6-7a.js
new file mode 100644
index 0000000000..93b78e6478
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_migrate_6-7a.js
@@ -0,0 +1,366 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+ChromeUtils.defineESModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.sys.mjs",
+});
+
+var PERMISSIONS_FILE_NAME = "permissions.sqlite";
+
+function GetPermissionsFile(profile) {
+  let file = profile.clone();
+  file.append(PERMISSIONS_FILE_NAME);
+  return file;
+}
+
+add_task(async function test() {
+  // Create and set up the permissions database.
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  let profile = do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.equal(pm.all.length, 0, "No cookies");
+
+  let db = Services.storage.openDatabase(GetPermissionsFile(profile));
+  db.schemaVersion = 6;
+  db.executeSimpleSQL("DROP TABLE moz_perms");
+  db.executeSimpleSQL("DROP TABLE moz_hosts");
+
+  /*
+   * V5 table
+   */
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_perms (" +
+      " id INTEGER PRIMARY KEY" +
+      ",origin TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ")"
+  );
+
+  let stmt6Insert = db.createStatement(
+    "INSERT INTO moz_perms (" +
+      "id, origin, type, permission, expireType, expireTime, modificationTime" +
+      ") VALUES (" +
+      ":id, :origin, :type, :permission, :expireType, :expireTime, :modificationTime" +
+      ")"
+  );
+
+  /*
+   * V4 table
+   */
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_hosts (" +
+      " id INTEGER PRIMARY KEY" +
+      ",host TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ",appId INTEGER" +
+      ",isInBrowserElement INTEGER" +
+      ")"
+  );
+
+  let stmtInsert = db.createStatement(
+    "INSERT INTO moz_hosts (" +
+      "id, host, type, permission, expireType, expireTime, modificationTime, appId, isInBrowserElement" +
+      ") VALUES (" +
+      ":id, :host, :type, :permission, :expireType, :expireTime, :modificationTime, :appId, :isInBrowserElement" +
+      ")"
+  );
+
+  let id = 0;
+
+  function insertOrigin(
+    origin,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime
+  ) {
+    let thisId = id++;
+
+    stmt6Insert.bindByName("id", thisId);
+    stmt6Insert.bindByName("origin", origin);
+    stmt6Insert.bindByName("type", type);
+    stmt6Insert.bindByName("permission", permission);
+    stmt6Insert.bindByName("expireType", expireType);
+    stmt6Insert.bindByName("expireTime", expireTime);
+    stmt6Insert.bindByName("modificationTime", modificationTime);
+
+    try {
+      stmt6Insert.execute();
+    } finally {
+      stmt6Insert.reset();
+    }
+
+    return {
+      id: thisId,
+      origin,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+    };
+  }
+
+  function insertHost(
+    host,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime,
+    appId,
+    isInBrowserElement
+  ) {
+    let thisId = id++;
+
+    stmtInsert.bindByName("id", thisId);
+    stmtInsert.bindByName("host", host);
+    stmtInsert.bindByName("type", type);
+    stmtInsert.bindByName("permission", permission);
+    stmtInsert.bindByName("expireType", expireType);
+    stmtInsert.bindByName("expireTime", expireTime);
+    stmtInsert.bindByName("modificationTime", modificationTime);
+    stmtInsert.bindByName("appId", appId);
+    stmtInsert.bindByName("isInBrowserElement", isInBrowserElement);
+
+    try {
+      stmtInsert.execute();
+    } finally {
+      stmtInsert.reset();
+    }
+
+    return {
+      id: thisId,
+      host,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+      appId,
+      isInBrowserElement,
+    };
+  }
+
+  let created6 = [
+    insertOrigin("https://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com^inBrowser=1", "A", 2, 0, 0, 0),
+  ];
+
+  // Add some rows to the database
+  // eslint-disable-next-line no-unused-vars
+  let created = [
+    insertHost("foo.com", "A", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "C", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "A", 1, 0, 0, 0, 1000, false),
+    insertHost("foo.com", "A", 1, 0, 0, 0, 2000, true),
+    insertHost("sub.foo.com", "B", 1, 0, 0, 0, 0, false),
+    insertHost("subber.sub.foo.com", "B", 1, 0, 0, 0, 0, false),
+    insertHost("bar.ca", "B", 1, 0, 0, 0, 0, false),
+    insertHost("bar.ca", "B", 1, 0, 0, 0, 1000, false),
+    insertHost("bar.ca", "A", 1, 0, 0, 0, 1000, true),
+    insertHost("localhost", "A", 1, 0, 0, 0, 0, false),
+    insertHost("127.0.0.1", "A", 1, 0, 0, 0, 0, false),
+    insertHost("192.0.2.235", "A", 1, 0, 0, 0, 0, false),
+    insertHost("file:///some/path/to/file.html", "A", 1, 0, 0, 0, 0, false),
+    insertHost("file:///another/file.html", "A", 1, 0, 0, 0, 0, false),
+    insertHost(
+      "moz-nullprincipal:{8695105a-adbe-4e4e-8083-851faa5ca2d7}",
+      "A",
+      1,
+      0,
+      0,
+      0,
+      0,
+      false
+    ),
+    insertHost(
+      "moz-nullprincipal:{12ahjksd-akjs-asd3-8393-asdu2189asdu}",
+      "B",
+      1,
+      0,
+      0,
+      0,
+      0,
+      false
+    ),
+    insertHost("<file>", "A", 1, 0, 0, 0, 0, false),
+    insertHost("<file>", "B", 1, 0, 0, 0, 0, false),
+  ];
+
+  // CLose the db connection
+  stmt6Insert.finalize();
+  stmtInsert.finalize();
+  db.close();
+  stmtInsert = null;
+  db = null;
+
+  let expected = [
+    // The http:// entries under foo.com won't be inserted, as there are history entries for foo.com,
+    // and http://foo.com or a subdomain are never visited.
+    // ["http://foo.com", "A", 1, 0, 0],
+    // ["http://foo.com^inBrowser=1", "A", 1, 0, 0],
+    //
+    // Because we search for port/scheme combinations under eTLD+1, we should not have http:// entries
+    // for subdomains of foo.com either
+    // ["http://sub.foo.com", "B", 1, 0, 0],
+    // ["http://subber.sub.foo.com", "B", 1, 0, 0],
+
+    ["https://foo.com", "A", 1, 0, 0],
+    ["https://foo.com", "C", 1, 0, 0],
+    ["https://foo.com^inBrowser=1", "A", 1, 0, 0],
+    ["https://sub.foo.com", "B", 1, 0, 0],
+    ["https://subber.sub.foo.com", "B", 1, 0, 0],
+
+    // bar.ca will have both http:// and https:// for all entries, because there are no associated history entries
+    ["http://bar.ca", "B", 1, 0, 0],
+    ["https://bar.ca", "B", 1, 0, 0],
+    ["http://bar.ca^inBrowser=1", "A", 1, 0, 0],
+    ["https://bar.ca^inBrowser=1", "A", 1, 0, 0],
+    ["file:///some/path/to/file.html", "A", 1, 0, 0],
+    ["file:///another/file.html", "A", 1, 0, 0],
+
+    // Because we put ftp://some.subdomain.of.foo.com:8000/some/subdirectory in the history, we should
+    // also have these entries
+    ["ftp://foo.com:8000", "A", 1, 0, 0],
+    ["ftp://foo.com:8000", "C", 1, 0, 0],
+    ["ftp://foo.com:8000^inBrowser=1", "A", 1, 0, 0],
+
+    // In addition, because we search for port/scheme combinations under eTLD+1, we should have the
+    // following entries
+    ["ftp://sub.foo.com:8000", "B", 1, 0, 0],
+    ["ftp://subber.sub.foo.com:8000", "B", 1, 0, 0],
+
+    // Make sure that we also support localhost, and IP addresses
+    ["http://localhost", "A", 1, 0, 0],
+    ["https://localhost", "A", 1, 0, 0],
+    ["http://127.0.0.1", "A", 1, 0, 0],
+    ["https://127.0.0.1", "A", 1, 0, 0],
+    ["http://192.0.2.235", "A", 1, 0, 0],
+    ["https://192.0.2.235", "A", 1, 0, 0],
+  ];
+
+  let found = expected.map(it => 0);
+
+  // Add some places to the places database
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("https://foo.com/some/other/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("ftp://some.subdomain.of.foo.com:8000/some/subdirectory")
+  );
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Force initialization of the PermissionManager
+  for (let permission of Services.perms.all) {
+    let isExpected = false;
+
+    expected.forEach((it, i) => {
+      if (
+        permission.principal.origin == it[0] &&
+        permission.type == it[1] &&
+        permission.capability == it[2] &&
+        permission.expireType == it[3] &&
+        permission.expireTime == it[4]
+      ) {
+        isExpected = true;
+        found[i]++;
+      }
+    });
+
+    Assert.ok(
+      isExpected,
+      "Permission " +
+        (isExpected ? "should" : "shouldn't") +
+        " be in permission database: " +
+        permission.principal.origin +
+        ", " +
+        permission.type +
+        ", " +
+        permission.capability +
+        ", " +
+        permission.expireType +
+        ", " +
+        permission.expireTime
+    );
+  }
+
+  found.forEach((count, i) => {
+    Assert.ok(
+      count == 1,
+      "Expected count = 1, got count = " +
+        count +
+        " for permission " +
+        expected[i]
+    );
+  });
+
+  // Check to make sure that all of the tables which we care about are present
+  {
+    db = Services.storage.openDatabase(GetPermissionsFile(profile));
+    Assert.ok(db.tableExists("moz_perms"));
+    Assert.ok(db.tableExists("moz_hosts"));
+    Assert.ok(!db.tableExists("moz_hosts_is_backup"));
+    Assert.ok(db.tableExists("moz_perms_v6"));
+
+    // The moz_hosts table should still exist but be empty
+    let mozHostsCount = db.createStatement("SELECT count(*) FROM moz_hosts");
+    try {
+      mozHostsCount.executeStep();
+      Assert.equal(mozHostsCount.getInt64(0), 0);
+    } finally {
+      mozHostsCount.finalize();
+    }
+
+    // Check that the moz_perms_v6 table contains the backup of the entry we created
+    let mozPermsV6Stmt = db.createStatement(
+      "SELECT " +
+        "origin, type, permission, expireType, expireTime, modificationTime " +
+        "FROM moz_perms_v6 WHERE id = :id"
+    );
+    try {
+      // Check that the moz_hosts table still contains the correct values.
+      created6.forEach(it => {
+        mozPermsV6Stmt.reset();
+        mozPermsV6Stmt.bindByName("id", it.id);
+        mozPermsV6Stmt.executeStep();
+        Assert.equal(mozPermsV6Stmt.getUTF8String(0), it.origin);
+        Assert.equal(mozPermsV6Stmt.getUTF8String(1), it.type);
+        Assert.equal(mozPermsV6Stmt.getInt64(2), it.permission);
+        Assert.equal(mozPermsV6Stmt.getInt64(3), it.expireType);
+        Assert.equal(mozPermsV6Stmt.getInt64(4), it.expireTime);
+        Assert.equal(mozPermsV6Stmt.getInt64(5), it.modificationTime);
+      });
+    } finally {
+      mozPermsV6Stmt.finalize();
+    }
+
+    // Check that there are the right number of values
+    let mozPermsV6Count = db.createStatement(
+      "SELECT count(*) FROM moz_perms_v6"
+    );
+    try {
+      mozPermsV6Count.executeStep();
+      Assert.equal(mozPermsV6Count.getInt64(0), created6.length);
+    } finally {
+      mozPermsV6Count.finalize();
+    }
+
+    db.close();
+  }
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_migrate_6-7b.js b/extensions/permissions/test/unit/test_permmanager_migrate_6-7b.js
new file mode 100644
index 0000000000..feed156d29
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_migrate_6-7b.js
@@ -0,0 +1,199 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+var PERMISSIONS_FILE_NAME = "permissions.sqlite";
+
+function GetPermissionsFile(profile) {
+  let file = profile.clone();
+  file.append(PERMISSIONS_FILE_NAME);
+  return file;
+}
+
+add_task(function test() {
+  // Create and set up the permissions database.
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  let profile = do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.equal(pm.all.length, 0, "No cookies");
+
+  let db = Services.storage.openDatabase(GetPermissionsFile(profile));
+  db.schemaVersion = 6;
+  db.executeSimpleSQL("DROP TABLE moz_perms");
+  db.executeSimpleSQL("DROP TABLE moz_hosts");
+
+  /*
+   * V5 table
+   */
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_perms (" +
+      " id INTEGER PRIMARY KEY" +
+      ",origin TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ")"
+  );
+
+  let stmt6Insert = db.createStatement(
+    "INSERT INTO moz_perms (" +
+      "id, origin, type, permission, expireType, expireTime, modificationTime" +
+      ") VALUES (" +
+      ":id, :origin, :type, :permission, :expireType, :expireTime, :modificationTime" +
+      ")"
+  );
+
+  let id = 0;
+  function insertOrigin(
+    origin,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime
+  ) {
+    let thisId = id++;
+
+    stmt6Insert.bindByName("id", thisId);
+    stmt6Insert.bindByName("origin", origin);
+    stmt6Insert.bindByName("type", type);
+    stmt6Insert.bindByName("permission", permission);
+    stmt6Insert.bindByName("expireType", expireType);
+    stmt6Insert.bindByName("expireTime", expireTime);
+    stmt6Insert.bindByName("modificationTime", modificationTime);
+
+    try {
+      stmt6Insert.execute();
+    } finally {
+      stmt6Insert.reset();
+    }
+
+    return {
+      id: thisId,
+      host: origin,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+    };
+  }
+
+  // eslint-disable-next-line no-unused-vars
+  let created6 = [
+    insertOrigin("https://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com^appId=1000&inBrowser=1", "A", 2, 0, 0, 0),
+  ];
+
+  let created4 = []; // Didn't create any v4 entries, so the DB should be empty
+
+  // CLose the db connection
+  stmt6Insert.finalize();
+  db.close();
+  stmt6Insert = null;
+  db = null;
+
+  let expected = [
+    ["https://foo.com", "A", 2, 0, 0, 0],
+    ["http://foo.com", "A", 2, 0, 0, 0],
+    ["http://foo.com^inBrowser=1", "A", 2, 0, 0, 0],
+  ];
+
+  let found = expected.map(it => 0);
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Force initialization of the PermissionManager
+  for (let permission of Services.perms.all) {
+    let isExpected = false;
+
+    expected.forEach((it, i) => {
+      if (
+        permission.principal.origin == it[0] &&
+        permission.type == it[1] &&
+        permission.capability == it[2] &&
+        permission.expireType == it[3] &&
+        permission.expireTime == it[4]
+      ) {
+        isExpected = true;
+        found[i]++;
+      }
+    });
+
+    Assert.ok(
+      isExpected,
+      "Permission " +
+        (isExpected ? "should" : "shouldn't") +
+        " be in permission database: " +
+        permission.principal.origin +
+        ", " +
+        permission.type +
+        ", " +
+        permission.capability +
+        ", " +
+        permission.expireType +
+        ", " +
+        permission.expireTime
+    );
+  }
+
+  found.forEach((count, i) => {
+    Assert.ok(
+      count == 1,
+      "Expected count = 1, got count = " +
+        count +
+        " for permission " +
+        expected[i]
+    );
+  });
+
+  // Check to make sure that all of the tables which we care about are present
+  {
+    db = Services.storage.openDatabase(GetPermissionsFile(profile));
+    Assert.ok(db.tableExists("moz_perms"));
+    Assert.ok(db.tableExists("moz_hosts"));
+    Assert.ok(!db.tableExists("moz_hosts_is_backup"));
+    Assert.ok(!db.tableExists("moz_perms_v6"));
+
+    let mozHostsStmt = db.createStatement(
+      "SELECT " +
+        "host, type, permission, expireType, expireTime, " +
+        "modificationTime, isInBrowserElement " +
+        "FROM moz_hosts WHERE id = :id"
+    );
+    try {
+      // Check that the moz_hosts table still contains the correct values.
+      created4.forEach(it => {
+        mozHostsStmt.reset();
+        mozHostsStmt.bindByName("id", it.id);
+        mozHostsStmt.executeStep();
+        Assert.equal(mozHostsStmt.getUTF8String(0), it.host);
+        Assert.equal(mozHostsStmt.getUTF8String(1), it.type);
+        Assert.equal(mozHostsStmt.getInt64(2), it.permission);
+        Assert.equal(mozHostsStmt.getInt64(3), it.expireType);
+        Assert.equal(mozHostsStmt.getInt64(4), it.expireTime);
+        Assert.equal(mozHostsStmt.getInt64(5), it.modificationTime);
+        Assert.equal(mozHostsStmt.getInt64(6), it.isInBrowserElement);
+      });
+    } finally {
+      mozHostsStmt.finalize();
+    }
+
+    // Check that there are the right number of values
+    let mozHostsCount = db.createStatement("SELECT count(*) FROM moz_hosts");
+    try {
+      mozHostsCount.executeStep();
+      Assert.equal(mozHostsCount.getInt64(0), created4.length);
+    } finally {
+      mozHostsCount.finalize();
+    }
+
+    db.close();
+  }
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_migrate_7-8.js b/extensions/permissions/test/unit/test_permmanager_migrate_7-8.js
new file mode 100644
index 0000000000..cd8b0f86cc
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_migrate_7-8.js
@@ -0,0 +1,328 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+ChromeUtils.defineESModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.sys.mjs",
+});
+
+var PERMISSIONS_FILE_NAME = "permissions.sqlite";
+
+function GetPermissionsFile(profile) {
+  let file = profile.clone();
+  file.append(PERMISSIONS_FILE_NAME);
+  return file;
+}
+
+add_task(async function test() {
+  // Create and set up the permissions database.
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  let profile = do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.equal(pm.all.length, 0, "No cookies");
+
+  let db = Services.storage.openDatabase(GetPermissionsFile(profile));
+  db.schemaVersion = 7;
+  db.executeSimpleSQL("DROP TABLE moz_perms");
+  db.executeSimpleSQL("DROP TABLE moz_hosts");
+
+  /*
+   * V5 table
+   */
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_perms (" +
+      " id INTEGER PRIMARY KEY" +
+      ",origin TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ")"
+  );
+
+  let stmt6Insert = db.createStatement(
+    "INSERT INTO moz_perms (" +
+      "id, origin, type, permission, expireType, expireTime, modificationTime" +
+      ") VALUES (" +
+      ":id, :origin, :type, :permission, :expireType, :expireTime, :modificationTime" +
+      ")"
+  );
+
+  /*
+   * V4 table
+   */
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_hosts (" +
+      " id INTEGER PRIMARY KEY" +
+      ",host TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ",appId INTEGER" +
+      ",isInBrowserElement INTEGER" +
+      ")"
+  );
+
+  let stmtInsert = db.createStatement(
+    "INSERT INTO moz_hosts (" +
+      "id, host, type, permission, expireType, expireTime, modificationTime, appId, isInBrowserElement" +
+      ") VALUES (" +
+      ":id, :host, :type, :permission, :expireType, :expireTime, :modificationTime, :appId, :isInBrowserElement" +
+      ")"
+  );
+
+  /*
+   * The v4 table is a backup
+   */
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_hosts_is_backup (dummy INTEGER PRIMARY KEY)"
+  );
+
+  let id = 0;
+
+  function insertOrigin(
+    origin,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime
+  ) {
+    let thisId = id++;
+
+    stmt6Insert.bindByName("id", thisId);
+    stmt6Insert.bindByName("origin", origin);
+    stmt6Insert.bindByName("type", type);
+    stmt6Insert.bindByName("permission", permission);
+    stmt6Insert.bindByName("expireType", expireType);
+    stmt6Insert.bindByName("expireTime", expireTime);
+    stmt6Insert.bindByName("modificationTime", modificationTime);
+
+    try {
+      stmt6Insert.execute();
+    } finally {
+      stmt6Insert.reset();
+    }
+
+    return {
+      id: thisId,
+      origin,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+    };
+  }
+
+  function insertHost(
+    host,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime,
+    appId,
+    isInBrowserElement
+  ) {
+    let thisId = id++;
+
+    stmtInsert.bindByName("id", thisId);
+    stmtInsert.bindByName("host", host);
+    stmtInsert.bindByName("type", type);
+    stmtInsert.bindByName("permission", permission);
+    stmtInsert.bindByName("expireType", expireType);
+    stmtInsert.bindByName("expireTime", expireTime);
+    stmtInsert.bindByName("modificationTime", modificationTime);
+    stmtInsert.bindByName("appId", appId);
+    stmtInsert.bindByName("isInBrowserElement", isInBrowserElement);
+
+    try {
+      stmtInsert.execute();
+    } finally {
+      stmtInsert.reset();
+    }
+
+    return {
+      id: thisId,
+      host,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+      appId,
+      isInBrowserElement,
+    };
+  }
+  // eslint-disable-next-line no-unused-vars
+  let created7 = [
+    insertOrigin("https://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com^inBrowser=1", "A", 2, 0, 0, 0),
+    insertOrigin("https://192.0.2.235", "A", 2, 0, 0),
+  ];
+
+  // Add some rows to the database
+  // eslint-disable-next-line no-unused-vars
+  let created = [
+    insertHost("foo.com", "A", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "C", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "A", 1, 0, 0, 0, 1000, false),
+    insertHost("foo.com", "A", 1, 0, 0, 0, 2000, true),
+    insertHost("sub.foo.com", "B", 1, 0, 0, 0, 0, false),
+    insertHost("subber.sub.foo.com", "B", 1, 0, 0, 0, 0, false),
+    insertHost("bar.ca", "B", 1, 0, 0, 0, 0, false),
+    insertHost("bar.ca", "B", 1, 0, 0, 0, 1000, false),
+    insertHost("bar.ca", "A", 1, 0, 0, 0, 1000, true),
+    insertHost("localhost", "A", 1, 0, 0, 0, 0, false),
+    insertHost("127.0.0.1", "A", 1, 0, 0, 0, 0, false),
+    insertHost("192.0.2.235", "A", 1, 0, 0, 0, 0, false),
+    // Although ipv6 addresses are written with [] around the IP address,
+    // the .host property doesn't contain these []s, which means that we
+    // write it like this
+    insertHost("2001:db8::ff00:42:8329", "C", 1, 0, 0, 0, 0, false),
+    insertHost("file:///some/path/to/file.html", "A", 1, 0, 0, 0, 0, false),
+    insertHost("file:///another/file.html", "A", 1, 0, 0, 0, 0, false),
+    insertHost(
+      "moz-nullprincipal:{8695105a-adbe-4e4e-8083-851faa5ca2d7}",
+      "A",
+      1,
+      0,
+      0,
+      0,
+      0,
+      false
+    ),
+    insertHost(
+      "moz-nullprincipal:{12ahjksd-akjs-asd3-8393-asdu2189asdu}",
+      "B",
+      1,
+      0,
+      0,
+      0,
+      0,
+      false
+    ),
+    insertHost("<file>", "A", 1, 0, 0, 0, 0, false),
+    insertHost("<file>", "B", 1, 0, 0, 0, 0, false),
+  ];
+
+  // CLose the db connection
+  stmt6Insert.finalize();
+  stmtInsert.finalize();
+  db.close();
+  stmtInsert = null;
+  db = null;
+
+  let expected = [
+    // We should have kept the previously migrated entries
+    ["https://foo.com", "A", 2, 0, 0, 0],
+    ["http://foo.com", "A", 2, 0, 0, 0],
+    ["http://foo.com^inBrowser=1", "A", 2, 0, 0, 0],
+
+    // Make sure that we also support localhost, and IP addresses
+    ["https://localhost:8080", "A", 1, 0, 0],
+    ["ftp://127.0.0.1:8080", "A", 1, 0, 0],
+
+    ["http://[2001:db8::ff00:42:8329]", "C", 1, 0, 0],
+    ["https://[2001:db8::ff00:42:8329]", "C", 1, 0, 0],
+    ["http://192.0.2.235", "A", 1, 0, 0],
+
+    // There should only be one entry of this type in the database
+    ["https://192.0.2.235", "A", 2, 0, 0],
+  ];
+
+  let found = expected.map(it => 0);
+
+  // Add some places to the places database
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("https://foo.com/some/other/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("ftp://some.subdomain.of.foo.com:8000/some/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(Services.io.newURI("ftp://127.0.0.1:8080"));
+  await PlacesTestUtils.addVisits(Services.io.newURI("https://localhost:8080"));
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Force initialization of the PermissionManager
+  for (let permission of Services.perms.all) {
+    let isExpected = false;
+
+    expected.forEach((it, i) => {
+      if (
+        permission.principal.origin == it[0] &&
+        permission.type == it[1] &&
+        permission.capability == it[2] &&
+        permission.expireType == it[3] &&
+        permission.expireTime == it[4]
+      ) {
+        isExpected = true;
+        found[i]++;
+      }
+    });
+
+    Assert.ok(
+      isExpected,
+      "Permission " +
+        (isExpected ? "should" : "shouldn't") +
+        " be in permission database: " +
+        permission.principal.origin +
+        ", " +
+        permission.type +
+        ", " +
+        permission.capability +
+        ", " +
+        permission.expireType +
+        ", " +
+        permission.expireTime
+    );
+  }
+
+  found.forEach((count, i) => {
+    Assert.ok(
+      count == 1,
+      "Expected count = 1, got count = " +
+        count +
+        " for permission " +
+        expected[i]
+    );
+  });
+
+  // Check to make sure that all of the tables which we care about are present
+  {
+    db = Services.storage.openDatabase(GetPermissionsFile(profile));
+    Assert.ok(db.tableExists("moz_perms"));
+    Assert.ok(db.tableExists("moz_hosts"));
+    Assert.ok(!db.tableExists("moz_hosts_is_backup"));
+    Assert.ok(!db.tableExists("moz_perms_v6"));
+
+    // The moz_hosts table should still exist but be empty
+    let mozHostsCount = db.createStatement("SELECT count(*) FROM moz_hosts");
+    try {
+      mozHostsCount.executeStep();
+      Assert.equal(mozHostsCount.getInt64(0), 0);
+    } finally {
+      mozHostsCount.finalize();
+    }
+
+    // Check that there are the right number of values in the permissions database
+    let mozPermsCount = db.createStatement("SELECT count(*) FROM moz_perms");
+    try {
+      mozPermsCount.executeStep();
+      Assert.equal(mozPermsCount.getInt64(0), expected.length);
+    } finally {
+      mozPermsCount.finalize();
+    }
+
+    db.close();
+  }
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_migrate_9-10.js b/extensions/permissions/test/unit/test_permmanager_migrate_9-10.js
new file mode 100644
index 0000000000..02aa3bb467
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_migrate_9-10.js
@@ -0,0 +1,262 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+ChromeUtils.defineESModuleGetters(this, {
+  PlacesTestUtils: "resource://testing-common/PlacesTestUtils.sys.mjs",
+});
+
+var PERMISSIONS_FILE_NAME = "permissions.sqlite";
+
+function GetPermissionsFile(profile) {
+  let file = profile.clone();
+  file.append(PERMISSIONS_FILE_NAME);
+  return file;
+}
+
+add_task(async function test() {
+  // Create and set up the permissions database.
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  let profile = do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.equal(pm.all.length, 0, "No cookies");
+
+  let db = Services.storage.openDatabase(GetPermissionsFile(profile));
+  db.schemaVersion = 9;
+  db.executeSimpleSQL("DROP TABLE moz_perms");
+  db.executeSimpleSQL("DROP TABLE IF EXISTS moz_hosts");
+
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_perms (" +
+      " id INTEGER PRIMARY KEY" +
+      ",origin TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ")"
+  );
+
+  let stmt6Insert = db.createStatement(
+    "INSERT INTO moz_perms (" +
+      "id, origin, type, permission, expireType, expireTime, modificationTime" +
+      ") VALUES (" +
+      ":id, :origin, :type, :permission, :expireType, :expireTime, :modificationTime" +
+      ")"
+  );
+
+  db.executeSimpleSQL(
+    "CREATE TABLE moz_hosts (" +
+      " id INTEGER PRIMARY KEY" +
+      ",host TEXT" +
+      ",type TEXT" +
+      ",permission INTEGER" +
+      ",expireType INTEGER" +
+      ",expireTime INTEGER" +
+      ",modificationTime INTEGER" +
+      ",appId INTEGER" +
+      ",isInBrowserElement INTEGER" +
+      ")"
+  );
+
+  let stmtInsert = db.createStatement(
+    "INSERT INTO moz_hosts (" +
+      "id, host, type, permission, expireType, expireTime, modificationTime, appId, isInBrowserElement" +
+      ") VALUES (" +
+      ":id, :host, :type, :permission, :expireType, :expireTime, :modificationTime, :appId, :isInBrowserElement" +
+      ")"
+  );
+
+  let id = 0;
+
+  function insertOrigin(
+    origin,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime
+  ) {
+    let thisId = id++;
+
+    stmt6Insert.bindByName("id", thisId);
+    stmt6Insert.bindByName("origin", origin);
+    stmt6Insert.bindByName("type", type);
+    stmt6Insert.bindByName("permission", permission);
+    stmt6Insert.bindByName("expireType", expireType);
+    stmt6Insert.bindByName("expireTime", expireTime);
+    stmt6Insert.bindByName("modificationTime", modificationTime);
+
+    try {
+      stmt6Insert.execute();
+    } finally {
+      stmt6Insert.reset();
+    }
+
+    return {
+      id: thisId,
+      origin,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+    };
+  }
+
+  function insertHost(
+    host,
+    type,
+    permission,
+    expireType,
+    expireTime,
+    modificationTime,
+    appId,
+    isInBrowserElement
+  ) {
+    let thisId = id++;
+
+    stmtInsert.bindByName("id", thisId);
+    stmtInsert.bindByName("host", host);
+    stmtInsert.bindByName("type", type);
+    stmtInsert.bindByName("permission", permission);
+    stmtInsert.bindByName("expireType", expireType);
+    stmtInsert.bindByName("expireTime", expireTime);
+    stmtInsert.bindByName("modificationTime", modificationTime);
+    stmtInsert.bindByName("appId", appId);
+    stmtInsert.bindByName("isInBrowserElement", isInBrowserElement);
+
+    try {
+      stmtInsert.execute();
+    } finally {
+      stmtInsert.reset();
+    }
+
+    return {
+      id: thisId,
+      host,
+      type,
+      permission,
+      expireType,
+      expireTime,
+      modificationTime,
+      appId,
+      isInBrowserElement,
+    };
+  }
+  // eslint-disable-next-line no-unused-vars
+  let created7 = [
+    insertOrigin("https://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com", "A", 2, 0, 0, 0),
+    insertOrigin("http://foo.com^inBrowser=1", "A", 2, 0, 0, 0),
+  ];
+
+  // Add some rows to the database
+  // eslint-disable-next-line no-unused-vars
+  let created = [
+    insertHost("foo.com", "A", 1, 0, 0, 0, 0, false),
+    insertHost("foo.com", "B", 1, 0, 0, 0, 1000, false),
+    insertHost("foo.com", "C", 1, 0, 0, 0, 2000, true),
+  ];
+
+  // CLose the db connection
+  stmt6Insert.finalize();
+  stmtInsert.finalize();
+  db.close();
+  stmtInsert = null;
+  db = null;
+
+  let expected = [
+    ["https://foo.com", "A", 2, 0, 0, 0],
+    ["http://foo.com", "A", 2, 0, 0, 0],
+    ["http://foo.com^inBrowser=1", "A", 2, 0, 0, 0],
+  ];
+
+  let found = expected.map(it => 0);
+
+  // Add some places to the places database
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("https://foo.com/some/other/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(
+    Services.io.newURI("ftp://some.subdomain.of.foo.com:8000/some/subdirectory")
+  );
+  await PlacesTestUtils.addVisits(Services.io.newURI("ftp://127.0.0.1:8080"));
+  await PlacesTestUtils.addVisits(Services.io.newURI("https://localhost:8080"));
+
+  // This will force the permission-manager to reload the data.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Force initialization of the PermissionManager
+  for (let permission of Services.perms.all) {
+    let isExpected = false;
+
+    expected.forEach((it, i) => {
+      if (
+        permission.principal.origin == it[0] &&
+        permission.type == it[1] &&
+        permission.capability == it[2] &&
+        permission.expireType == it[3] &&
+        permission.expireTime == it[4]
+      ) {
+        isExpected = true;
+        found[i]++;
+      }
+    });
+
+    Assert.ok(
+      isExpected,
+      "Permission " +
+        (isExpected ? "should" : "shouldn't") +
+        " be in permission database: " +
+        permission.principal.origin +
+        ", " +
+        permission.type +
+        ", " +
+        permission.capability +
+        ", " +
+        permission.expireType +
+        ", " +
+        permission.expireTime
+    );
+  }
+
+  found.forEach((count, i) => {
+    Assert.ok(
+      count == 1,
+      "Expected count = 1, got count = " +
+        count +
+        " for permission " +
+        expected[i]
+    );
+  });
+
+  // Check to make sure that all of the tables which we care about are present
+  {
+    db = Services.storage.openDatabase(GetPermissionsFile(profile));
+    Assert.ok(db.tableExists("moz_perms"));
+    Assert.ok(db.tableExists("moz_hosts"));
+    Assert.ok(!db.tableExists("moz_perms_v6"));
+
+    let mozHostsCount = db.createStatement("SELECT count(*) FROM moz_hosts");
+    try {
+      mozHostsCount.executeStep();
+      Assert.equal(mozHostsCount.getInt64(0), 3);
+    } finally {
+      mozHostsCount.finalize();
+    }
+
+    let mozPermsCount = db.createStatement("SELECT count(*) FROM moz_perms");
+    try {
+      mozPermsCount.executeStep();
+      Assert.equal(mozPermsCount.getInt64(0), expected.length);
+    } finally {
+      mozPermsCount.finalize();
+    }
+
+    db.close();
+  }
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_notifications.js b/extensions/permissions/test/unit/test_permmanager_notifications.js
new file mode 100644
index 0000000000..a84f79b6ec
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_notifications.js
@@ -0,0 +1,139 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that the permissionmanager 'added', 'changed', 'deleted', and 'cleared'
+// notifications behave as expected.
+
+var test_generator = do_run_test();
+
+function run_test() {
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  do_test_pending();
+  test_generator.next();
+}
+
+function* do_run_test() {
+  let pm = Services.perms;
+  let now = Number(Date.now());
+  let permType = "test/expiration-perm";
+  let ssm = Services.scriptSecurityManager;
+  let uri = NetUtil.newURI("http://example.com");
+  let principal = ssm.createContentPrincipal(uri, {});
+
+  let observer = new permission_observer(test_generator, now, permType);
+  Services.obs.addObserver(observer, "perm-changed");
+
+  // Add a permission, to test the 'add' notification. Note that we use
+  // do_execute_soon() so that we can use our generator to continue the test
+  // where we left off.
+  executeSoon(function() {
+    pm.addFromPrincipal(
+      principal,
+      permType,
+      pm.ALLOW_ACTION,
+      pm.EXPIRE_TIME,
+      now + 100000
+    );
+  });
+  yield;
+
+  // Alter a permission, to test the 'changed' notification.
+  executeSoon(function() {
+    pm.addFromPrincipal(
+      principal,
+      permType,
+      pm.ALLOW_ACTION,
+      pm.EXPIRE_TIME,
+      now + 200000
+    );
+  });
+  yield;
+
+  // Remove a permission, to test the 'deleted' notification.
+  executeSoon(function() {
+    pm.removeFromPrincipal(principal, permType);
+  });
+  yield;
+
+  // Clear permissions, to test the 'cleared' notification.
+  executeSoon(function() {
+    pm.removeAll();
+  });
+  yield;
+
+  Services.obs.removeObserver(observer, "perm-changed");
+  Assert.equal(observer.adds, 1);
+  Assert.equal(observer.changes, 1);
+  Assert.equal(observer.deletes, 1);
+  Assert.ok(observer.cleared);
+
+  do_finish_generator_test(test_generator);
+}
+
+function permission_observer(generator, now, type) {
+  // Set up our observer object.
+  this.generator = generator;
+  this.pm = Services.perms;
+  this.now = now;
+  this.type = type;
+  this.adds = 0;
+  this.changes = 0;
+  this.deletes = 0;
+  this.cleared = false;
+}
+
+permission_observer.prototype = {
+  observe(subject, topic, data) {
+    Assert.equal(topic, "perm-changed");
+
+    // "deleted" means a permission was deleted. aPermission is the deleted permission.
+    // "added"   means a permission was added. aPermission is the added permission.
+    // "changed" means a permission was altered. aPermission is the new permission.
+    // "cleared" means the entire permission list was cleared. aPermission is null.
+    if (data == "added") {
+      let perm = subject.QueryInterface(Ci.nsIPermission);
+      this.adds++;
+      switch (this.adds) {
+        case 1:
+          Assert.equal(this.type, perm.type);
+          Assert.equal(this.pm.EXPIRE_TIME, perm.expireType);
+          Assert.equal(this.now + 100000, perm.expireTime);
+          break;
+        default:
+          do_throw("too many add notifications posted.");
+      }
+    } else if (data == "changed") {
+      let perm = subject.QueryInterface(Ci.nsIPermission);
+      this.changes++;
+      switch (this.changes) {
+        case 1:
+          Assert.equal(this.type, perm.type);
+          Assert.equal(this.pm.EXPIRE_TIME, perm.expireType);
+          Assert.equal(this.now + 200000, perm.expireTime);
+          break;
+        default:
+          do_throw("too many change notifications posted.");
+      }
+    } else if (data == "deleted") {
+      let perm = subject.QueryInterface(Ci.nsIPermission);
+      this.deletes++;
+      switch (this.deletes) {
+        case 1:
+          Assert.equal(this.type, perm.type);
+          break;
+        default:
+          do_throw("too many delete notifications posted.");
+      }
+    } else if (data == "cleared") {
+      // only clear once: at the end
+      Assert.ok(!this.cleared);
+      Assert.equal(do_count_array(Services.perms.all), 0);
+      this.cleared = true;
+    } else {
+      do_throw("unexpected data '" + data + "'!");
+    }
+
+    // Continue the test.
+    do_run_generator(this.generator);
+  },
+};
diff --git a/extensions/permissions/test/unit/test_permmanager_oa_strip.js b/extensions/permissions/test/unit/test_permmanager_oa_strip.js
new file mode 100644
index 0000000000..7c791928cd
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_oa_strip.js
@@ -0,0 +1,220 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+const TEST_URI = Services.io.newURI("http://example.com");
+const TEST_PERMISSION = "test/oastrip";
+const TEST_PERMISSION2 = "test/oastrip2";
+const TEST_PERMISSION3 = "test/oastrip3";
+
+// List of permissions which are not isolated by private browsing or user context
+// as per array kStripOAPermissions in PermissionManager.cpp
+const STRIPPED_PERMS = ["cookie"];
+
+let principal = Services.scriptSecurityManager.createContentPrincipal(
+  TEST_URI,
+  {}
+);
+let principalPrivateBrowsing = Services.scriptSecurityManager.createContentPrincipal(
+  TEST_URI,
+  { privateBrowsingId: 1 }
+);
+let principalUserContext1 = Services.scriptSecurityManager.createContentPrincipal(
+  TEST_URI,
+  { userContextId: 1 }
+);
+let principalUserContext2 = Services.scriptSecurityManager.createContentPrincipal(
+  TEST_URI,
+  { userContextId: 2 }
+);
+
+function testOAIsolation(permIsolateUserContext, permIsolatePrivateBrowsing) {
+  info(
+    `testOAIsolation: permIsolateUserContext: ${permIsolateUserContext}; permIsolatePrivateBrowsing: ${permIsolatePrivateBrowsing}`
+  );
+
+  let pm = Services.perms;
+
+  Services.prefs.setBoolPref(
+    "permissions.isolateBy.userContext",
+    permIsolateUserContext
+  );
+  Services.prefs.setBoolPref(
+    "permissions.isolateBy.privateBrowsing",
+    permIsolatePrivateBrowsing
+  );
+
+  // Set test permission for normal browsing
+  pm.addFromPrincipal(principal, TEST_PERMISSION, pm.ALLOW_ACTION);
+
+  // Check normal browsing permission
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+  // normal browsing => user context 1
+  Assert.equal(
+    permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principalUserContext1, TEST_PERMISSION)
+  );
+  // normal browsing => user context 2
+  Assert.equal(
+    permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principalUserContext2, TEST_PERMISSION)
+  );
+  // normal browsing => private browsing
+  Assert.equal(
+    permIsolatePrivateBrowsing
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principalPrivateBrowsing, TEST_PERMISSION)
+  );
+
+  // Set permission for private browsing
+  pm.addFromPrincipal(
+    principalPrivateBrowsing,
+    TEST_PERMISSION2,
+    pm.DENY_ACTION
+  );
+
+  // Check private browsing permission
+  Assert.equal(
+    Ci.nsIPermissionManager.DENY_ACTION,
+    pm.testPermissionFromPrincipal(principalPrivateBrowsing, TEST_PERMISSION2)
+  );
+  // private browsing => normal browsing
+  Assert.equal(
+    permIsolatePrivateBrowsing
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.DENY_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION2)
+  );
+  // private browsing => user context 1
+  Assert.equal(
+    permIsolatePrivateBrowsing || permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.DENY_ACTION,
+    pm.testPermissionFromPrincipal(principalUserContext1, TEST_PERMISSION2)
+  );
+  // private browsing => user context 2
+  Assert.equal(
+    permIsolatePrivateBrowsing || permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.DENY_ACTION,
+    pm.testPermissionFromPrincipal(principalUserContext2, TEST_PERMISSION2)
+  );
+
+  // Set permission for user context 1
+  pm.addFromPrincipal(
+    principalUserContext1,
+    TEST_PERMISSION3,
+    pm.PROMPT_ACTION
+  );
+
+  // Check user context 1 permission
+  Assert.equal(
+    Ci.nsIPermissionManager.PROMPT_ACTION,
+    pm.testPermissionFromPrincipal(principalUserContext1, TEST_PERMISSION3)
+  );
+
+  // user context 1 => normal browsing
+  Assert.equal(
+    permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.PROMPT_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION3)
+  );
+  // user context 1 => user context 2
+  Assert.equal(
+    permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.PROMPT_ACTION,
+    pm.testPermissionFromPrincipal(principalUserContext2, TEST_PERMISSION3)
+  );
+  // user context 1 => private browsing
+  Assert.equal(
+    permIsolatePrivateBrowsing || permIsolateUserContext
+      ? Ci.nsIPermissionManager.UNKNOWN_ACTION
+      : Ci.nsIPermissionManager.PROMPT_ACTION,
+    pm.testPermissionFromPrincipal(principalPrivateBrowsing, TEST_PERMISSION3)
+  );
+
+  pm.removeAll();
+
+  // Modifying an non-isolated/stripped permission should affect all browsing contexts,
+  // independently of permission isolation pref state
+  STRIPPED_PERMS.forEach(perm => {
+    info("Testing stripped permission " + perm);
+
+    // Add a permission for the normal window
+    pm.addFromPrincipal(principal, perm, pm.ALLOW_ACTION);
+    Assert.equal(
+      pm.testPermissionFromPrincipal(principalPrivateBrowsing, perm),
+      Ci.nsIPermissionManager.ALLOW_ACTION
+    );
+    Assert.equal(
+      pm.testPermissionFromPrincipal(principalUserContext1, perm),
+      Ci.nsIPermissionManager.ALLOW_ACTION
+    );
+    Assert.equal(
+      pm.testPermissionFromPrincipal(principalUserContext2, perm),
+      Ci.nsIPermissionManager.ALLOW_ACTION
+    );
+
+    // Remove the permission from private window
+    pm.removeFromPrincipal(principalPrivateBrowsing, perm);
+    Assert.equal(
+      pm.testPermissionFromPrincipal(principal, perm),
+      Ci.nsIPermissionManager.UNKNOWN_ACTION
+    );
+    Assert.equal(
+      pm.testPermissionFromPrincipal(principalUserContext1, perm),
+      Ci.nsIPermissionManager.UNKNOWN_ACTION
+    );
+    Assert.equal(
+      pm.testPermissionFromPrincipal(principalUserContext2, perm),
+      Ci.nsIPermissionManager.UNKNOWN_ACTION
+    );
+
+    // Set a permission for a normal window and then override it by adding it to container 2 again
+    pm.addFromPrincipal(principal, perm, pm.PROMPT_ACTION);
+    pm.addFromPrincipal(principal, TEST_PERMISSION, pm.ALLOW_ACTION);
+    pm.addFromPrincipal(principalUserContext2, perm, pm.DENY_ACTION);
+
+    let principalPerms = pm.getAllForPrincipal(principalPrivateBrowsing, perm);
+
+    Assert.ok(
+      principalPerms.some(p => p.type == perm && p.capability == pm.DENY_ACTION)
+    );
+    if (permIsolatePrivateBrowsing) {
+      Assert.equal(principalPerms.length, 1);
+      Assert.ok(
+        principalPerms.some(
+          p => p.type == perm && p.capability == pm.DENY_ACTION
+        )
+      );
+    } else {
+      Assert.equal(principalPerms.length, 2);
+      Assert.ok(
+        principalPerms.some(
+          p => p.type == TEST_PERMISSION && p.capability == pm.ALLOW_ACTION
+        )
+      );
+    }
+  });
+
+  // Cleanup
+  pm.removeAll();
+}
+
+add_task(async function do_test() {
+  // Test all pref combinations and check if principals with different origin attributes
+  // are isolated.
+  testOAIsolation(true, true);
+  testOAIsolation(true, false);
+  testOAIsolation(false, true);
+  testOAIsolation(false, false);
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_remove_add_update.js b/extensions/permissions/test/unit/test_permmanager_remove_add_update.js
new file mode 100644
index 0000000000..815468e0e8
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_remove_add_update.js
@@ -0,0 +1,83 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function check_enumerator(principal, permissions) {
+  let perms = Services.perms.getAllForPrincipal(principal);
+  for (let [type, capability, expireType] of permissions) {
+    let perm = perms.shift();
+    Assert.ok(perm != null);
+    Assert.equal(perm.type, type);
+    Assert.equal(perm.capability, capability);
+    Assert.equal(perm.expireType, expireType);
+  }
+  Assert.ok(!perms.length);
+}
+
+add_task(async function test() {
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+
+  // setup a profile directory
+  do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.ok(pm.all.length === 0);
+
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://example.com"
+  );
+
+  info("From session to persistent");
+  pm.addFromPrincipal(
+    principal,
+    "test/foo",
+    pm.ALLOW_ACTION,
+    pm.EXPIRE_SESSION
+  );
+
+  check_enumerator(principal, [
+    ["test/foo", pm.ALLOW_ACTION, pm.EXPIRE_SESSION],
+  ]);
+
+  pm.addFromPrincipal(principal, "test/foo", pm.ALLOW_ACTION, pm.EXPIRE_NEVER);
+
+  check_enumerator(principal, [["test/foo", pm.ALLOW_ACTION, pm.EXPIRE_NEVER]]);
+
+  // Let's reload the DB.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  Assert.ok(pm.all.length === 1);
+  check_enumerator(principal, [["test/foo", pm.ALLOW_ACTION, pm.EXPIRE_NEVER]]);
+
+  info("From persistent to session");
+  pm.addFromPrincipal(
+    principal,
+    "test/foo",
+    pm.ALLOW_ACTION,
+    pm.EXPIRE_SESSION
+  );
+
+  check_enumerator(principal, [
+    ["test/foo", pm.ALLOW_ACTION, pm.EXPIRE_SESSION],
+  ]);
+
+  // Let's reload the DB.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+  Assert.ok(pm.all.length === 0);
+
+  info("From persistent to persistent");
+  pm.addFromPrincipal(principal, "test/foo", pm.ALLOW_ACTION, pm.EXPIRE_NEVER);
+  pm.addFromPrincipal(principal, "test/foo", pm.DENY_ACTION, pm.EXPIRE_NEVER);
+
+  check_enumerator(principal, [["test/foo", pm.DENY_ACTION, pm.EXPIRE_NEVER]]);
+
+  // Let's reload the DB.
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+  Assert.ok(pm.all.length === 1);
+  check_enumerator(principal, [["test/foo", pm.DENY_ACTION, pm.EXPIRE_NEVER]]);
+
+  info("Cleanup");
+  pm.removeAll();
+  check_enumerator(principal, []);
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_removeall.js b/extensions/permissions/test/unit/test_permmanager_removeall.js
new file mode 100644
index 0000000000..e6faea1369
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_removeall.js
@@ -0,0 +1,47 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+add_task(async function test() {
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+  // setup a profile directory
+  var dir = do_get_profile();
+
+  // We need to execute a pm method to be sure that the DB is fully
+  // initialized.
+  var pm = Services.perms;
+  Assert.ok(pm.all.length === 0);
+
+  Services.obs.notifyObservers(null, "testonly-reload-permissions-from-disk");
+
+  // Let's force the completion of the DB reading.
+  Assert.ok(pm.all.length === 0);
+
+  // get the db file
+  var file = dir.clone();
+  file.append("permissions.sqlite");
+
+  Assert.ok(file.exists());
+
+  // corrupt the file
+  var ostream = Cc["@mozilla.org/network/file-output-stream;1"].createInstance(
+    Ci.nsIFileOutputStream
+  );
+  ostream.init(file, 0x02, 0o666, 0);
+  var conv = Cc["@mozilla.org/intl/converter-output-stream;1"].createInstance(
+    Ci.nsIConverterOutputStream
+  );
+  conv.init(ostream, "UTF-8");
+  for (var i = 0; i < file.fileSize; ++i) {
+    conv.writeString("a");
+  }
+  conv.close();
+
+  // prepare an empty hostperm.1 file so that it can be used for importing
+  var hostperm = dir.clone();
+  hostperm.append("hostperm.1");
+  ostream.init(hostperm, 0x02 | 0x08, 0o666, 0);
+  ostream.close();
+
+  // remove all should not throw
+  pm.removeAll();
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_removebytype.js b/extensions/permissions/test/unit/test_permmanager_removebytype.js
new file mode 100644
index 0000000000..12a05c2902
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_removebytype.js
@@ -0,0 +1,73 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+
+  // initialize the permission manager service
+  let pm = Services.perms;
+
+  Assert.equal(pm.all.length, 0);
+
+  // add some permissions
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://amazon.com:8080"
+  );
+  let principal2 = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://google.com:2048"
+  );
+  let principal3 = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "https://google.com"
+  );
+
+  pm.addFromPrincipal(principal, "apple", 3);
+  pm.addFromPrincipal(principal, "pear", 1);
+  pm.addFromPrincipal(principal, "cucumber", 1);
+
+  pm.addFromPrincipal(principal2, "apple", 2);
+  pm.addFromPrincipal(principal2, "pear", 2);
+
+  pm.addFromPrincipal(principal3, "cucumber", 3);
+  pm.addFromPrincipal(principal3, "apple", 1);
+
+  Assert.equal(pm.all.length, 7);
+
+  pm.removeByType("apple");
+  Assert.equal(pm.all.length, 4);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "pear"), 1);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "pear"), 2);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "apple"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "apple"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "apple"), 0);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "cucumber"), 1);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "cucumber"), 3);
+
+  pm.removeByType("cucumber");
+  Assert.equal(pm.all.length, 2);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "pear"), 1);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "pear"), 2);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "apple"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "apple"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "apple"), 0);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "cucumber"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "cucumber"), 0);
+
+  pm.removeByType("pear");
+  Assert.equal(pm.all.length, 0);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "pear"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "pear"), 0);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "apple"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "apple"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "apple"), 0);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "cucumber"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "cucumber"), 0);
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_removebytypesince.js b/extensions/permissions/test/unit/test_permmanager_removebytypesince.js
new file mode 100644
index 0000000000..294ce410c2
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_removebytypesince.js
@@ -0,0 +1,86 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+add_task(async function test() {
+  Services.prefs.setCharPref("permissions.manager.defaultsUrl", "");
+
+  // initialize the permission manager service
+  let pm = Services.perms;
+
+  Assert.equal(pm.all.length, 0);
+
+  // add some permissions
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://amazon.com:8080"
+  );
+  let principal2 = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://google.com:2048"
+  );
+  let principal3 = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "https://google.com"
+  );
+
+  pm.addFromPrincipal(principal, "apple", 3);
+  pm.addFromPrincipal(principal, "pear", 1);
+  pm.addFromPrincipal(principal, "cucumber", 1);
+
+  // sleep briefly, then record the time - we'll remove some permissions since then.
+  await new Promise(resolve => do_timeout(20, resolve));
+
+  let since = Date.now();
+
+  // *sob* - on Windows at least, the now recorded by PermissionManager.cpp
+  // might be a couple of ms *earlier* than what JS sees.  So another sleep
+  // to ensure our |since| is greater than the time of the permissions we
+  // are now adding.  Sadly this means we'll never be able to test when since
+  // exactly equals the modTime, but there you go...
+  await new Promise(resolve => do_timeout(20, resolve));
+
+  pm.addFromPrincipal(principal2, "apple", 2);
+  pm.addFromPrincipal(principal2, "pear", 2);
+
+  pm.addFromPrincipal(principal3, "cucumber", 3);
+  pm.addFromPrincipal(principal3, "apple", 1);
+
+  Assert.equal(pm.all.length, 7);
+
+  pm.removeByTypeSince("apple", since);
+
+  Assert.equal(pm.all.length, 5);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "pear"), 1);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "pear"), 2);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "apple"), 3);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "apple"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "apple"), 0);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "cucumber"), 1);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "cucumber"), 3);
+
+  pm.removeByTypeSince("cucumber", since);
+  Assert.equal(pm.all.length, 4);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "pear"), 1);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "pear"), 2);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "apple"), 3);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "apple"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "apple"), 0);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "cucumber"), 1);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "cucumber"), 0);
+
+  pm.removeByTypeSince("pear", since);
+  Assert.equal(pm.all.length, 3);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "pear"), 1);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "pear"), 0);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "apple"), 3);
+  Assert.equal(pm.testPermissionFromPrincipal(principal2, "apple"), 0);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "apple"), 0);
+
+  Assert.equal(pm.testPermissionFromPrincipal(principal, "cucumber"), 1);
+  Assert.equal(pm.testPermissionFromPrincipal(principal3, "cucumber"), 0);
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_removepermission.js b/extensions/permissions/test/unit/test_permmanager_removepermission.js
new file mode 100644
index 0000000000..6f454d8f35
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_removepermission.js
@@ -0,0 +1,56 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  // initialize the permission manager service
+  let pm = Services.perms;
+
+  Assert.equal(pm.all.length, 0);
+
+  // add some permissions
+  let principal = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://amazon.com:8080"
+  );
+  let principal2 = Services.scriptSecurityManager.createContentPrincipalFromOrigin(
+    "http://google.com:2048"
+  );
+
+  pm.addFromPrincipal(principal, "apple", 0);
+  pm.addFromPrincipal(principal, "apple", 3);
+  pm.addFromPrincipal(principal, "pear", 3);
+  pm.addFromPrincipal(principal, "pear", 1);
+  pm.addFromPrincipal(principal, "cucumber", 1);
+  pm.addFromPrincipal(principal, "cucumber", 1);
+  pm.addFromPrincipal(principal, "cucumber", 1);
+
+  pm.addFromPrincipal(principal2, "apple", 2);
+  pm.addFromPrincipal(principal2, "pear", 0);
+  pm.addFromPrincipal(principal2, "pear", 2);
+
+  // Make sure that removePermission doesn't remove more than one permission each time
+  Assert.equal(pm.all.length, 5);
+
+  remove_one_by_type("apple");
+  Assert.equal(pm.all.length, 4);
+
+  remove_one_by_type("apple");
+  Assert.equal(pm.all.length, 3);
+
+  remove_one_by_type("pear");
+  Assert.equal(pm.all.length, 2);
+
+  remove_one_by_type("cucumber");
+  Assert.equal(pm.all.length, 1);
+
+  remove_one_by_type("pear");
+  Assert.equal(pm.all.length, 0);
+
+  function remove_one_by_type(type) {
+    for (let perm of pm.all) {
+      if (perm.type == type) {
+        pm.removePermission(perm);
+        break;
+      }
+    }
+  }
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_removesince.js b/extensions/permissions/test/unit/test_permmanager_removesince.js
new file mode 100644
index 0000000000..c33d02b08b
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_removesince.js
@@ -0,0 +1,83 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test that removing permissions since a specified time behaves as expected.
+
+var test_generator = do_run_test();
+
+function run_test() {
+  do_test_pending();
+  test_generator.next();
+}
+
+function continue_test() {
+  do_run_generator(test_generator);
+}
+
+function* do_run_test() {
+  let pm = Services.perms;
+
+  // to help with testing edge-cases, we will arrange for .removeAllSince to
+  // remove *all* permissions from one principal and one permission from another.
+  let permURI1 = NetUtil.newURI("http://example.com");
+  let principal1 = Services.scriptSecurityManager.createContentPrincipal(
+    permURI1,
+    {}
+  );
+
+  let permURI2 = NetUtil.newURI("http://example.org");
+  let principal2 = Services.scriptSecurityManager.createContentPrincipal(
+    permURI2,
+    {}
+  );
+
+  // add a permission now - this isn't going to be removed.
+  pm.addFromPrincipal(principal1, "test/remove-since", 1);
+
+  // sleep briefly, then record the time - we'll remove all since then.
+  do_timeout(20, continue_test);
+  yield;
+
+  let since = Number(Date.now());
+
+  // *sob* - on Windows at least, the now recorded by PermissionManager.cpp
+  // might be a couple of ms *earlier* than what JS sees.  So another sleep
+  // to ensure our |since| is greater than the time of the permissions we
+  // are now adding.  Sadly this means we'll never be able to test when since
+  // exactly equals the modTime, but there you go...
+  do_timeout(20, continue_test);
+  yield;
+
+  // add another item - this second one should get nuked.
+  pm.addFromPrincipal(principal1, "test/remove-since-2", 1);
+
+  // add 2 items for the second principal - both will be removed.
+  pm.addFromPrincipal(principal2, "test/remove-since", 1);
+  pm.addFromPrincipal(principal2, "test/remove-since-2", 1);
+
+  // do the removal.
+  pm.removeAllSince(since);
+
+  // principal1 - the first one should remain.
+  Assert.equal(
+    1,
+    pm.testPermissionFromPrincipal(principal1, "test/remove-since")
+  );
+  // but the second should have been removed.
+  Assert.equal(
+    0,
+    pm.testPermissionFromPrincipal(principal1, "test/remove-since-2")
+  );
+
+  // principal2 - both should have been removed.
+  Assert.equal(
+    0,
+    pm.testPermissionFromPrincipal(principal2, "test/remove-since")
+  );
+  Assert.equal(
+    0,
+    pm.testPermissionFromPrincipal(principal2, "test/remove-since-2")
+  );
+
+  do_finish_generator_test(test_generator);
+}
diff --git a/extensions/permissions/test/unit/test_permmanager_site_scope.js b/extensions/permissions/test/unit/test_permmanager_site_scope.js
new file mode 100644
index 0000000000..ca11385f75
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_site_scope.js
@@ -0,0 +1,120 @@
+const TEST_SITE_URI = Services.io.newURI("http://example.com");
+const TEST_FQDN_1_URI = Services.io.newURI("http://test1.example.com");
+const TEST_FQDN_2_URI = Services.io.newURI("http://test2.example.com");
+const TEST_OTHER_URI = Services.io.newURI("http://example.net");
+const TEST_PERMISSION = "3rdPartyStorage^https://example.org";
+
+add_task(async function do_test() {
+  let pm = Services.perms;
+
+  let principal = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_SITE_URI,
+    {}
+  );
+
+  let subdomain1Principal = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_FQDN_1_URI,
+    {}
+  );
+
+  let subdomain2Principal = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_FQDN_2_URI,
+    {}
+  );
+
+  let otherPrincipal = Services.scriptSecurityManager.createContentPrincipal(
+    TEST_OTHER_URI,
+    {}
+  );
+
+  // Set test permission for site
+  pm.addFromPrincipal(principal, TEST_PERMISSION, pm.ALLOW_ACTION);
+
+  // Check normal site permission
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+
+  // Check subdomain permission
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(subdomain1Principal, TEST_PERMISSION)
+  );
+
+  // Check other site permission
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(otherPrincipal, TEST_PERMISSION)
+  );
+
+  // Remove the permission from the site
+  pm.removeFromPrincipal(principal, TEST_PERMISSION);
+  Assert.equal(
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION),
+    Ci.nsIPermissionManager.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(subdomain1Principal, TEST_PERMISSION),
+    Ci.nsIPermissionManager.UNKNOWN_ACTION
+  );
+
+  // Set test permission for subdomain
+  pm.addFromPrincipal(subdomain1Principal, TEST_PERMISSION, pm.ALLOW_ACTION);
+
+  // Check normal site permission
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION)
+  );
+
+  // Check subdomain permission
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(subdomain1Principal, TEST_PERMISSION)
+  );
+
+  // Check other subdomain permission
+  Assert.equal(
+    Ci.nsIPermissionManager.ALLOW_ACTION,
+    pm.testPermissionFromPrincipal(subdomain2Principal, TEST_PERMISSION)
+  );
+
+  // Check other site permission
+  Assert.equal(
+    Ci.nsIPermissionManager.UNKNOWN_ACTION,
+    pm.testPermissionFromPrincipal(otherPrincipal, TEST_PERMISSION)
+  );
+
+  // Check that subdomains include the site-scoped in the getAllForPrincipal
+  let sitePerms = pm.getAllForPrincipal(principal, TEST_PERMISSION);
+  let subdomain1Perms = pm.getAllForPrincipal(
+    subdomain1Principal,
+    TEST_PERMISSION
+  );
+  let subdomain2Perms = pm.getAllForPrincipal(
+    subdomain2Principal,
+    TEST_PERMISSION
+  );
+  let otherSitePerms = pm.getAllForPrincipal(otherPrincipal, TEST_PERMISSION);
+
+  Assert.equal(sitePerms.length, 1);
+  Assert.equal(subdomain1Perms.length, 1);
+  Assert.equal(subdomain2Perms.length, 1);
+  Assert.equal(otherSitePerms.length, 0);
+
+  // Remove the permission from the subdomain
+  pm.removeFromPrincipal(subdomain1Principal, TEST_PERMISSION);
+  Assert.equal(
+    pm.testPermissionFromPrincipal(principal, TEST_PERMISSION),
+    Ci.nsIPermissionManager.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(subdomain1Principal, TEST_PERMISSION),
+    Ci.nsIPermissionManager.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(subdomain2Principal, TEST_PERMISSION),
+    Ci.nsIPermissionManager.UNKNOWN_ACTION
+  );
+});
diff --git a/extensions/permissions/test/unit/test_permmanager_subdomains.js b/extensions/permissions/test/unit/test_permmanager_subdomains.js
new file mode 100644
index 0000000000..4d30372332
--- /dev/null
+++ b/extensions/permissions/test/unit/test_permmanager_subdomains.js
@@ -0,0 +1,106 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function getPrincipalFromURI(aURI) {
+  let ssm = Services.scriptSecurityManager;
+  let uri = NetUtil.newURI(aURI);
+  return ssm.createContentPrincipal(uri, {});
+}
+
+function run_test() {
+  var pm = Services.perms;
+
+  // Adds a permission to a sub-domain. Checks if it is working.
+  let sub1Principal = getPrincipalFromURI("http://sub1.example.com");
+  pm.addFromPrincipal(sub1Principal, "test/subdomains", pm.ALLOW_ACTION, 0, 0);
+  Assert.equal(
+    pm.testPermissionFromPrincipal(sub1Principal, "test/subdomains"),
+    pm.ALLOW_ACTION
+  );
+
+  // A sub-sub-domain should get the permission.
+  let subsubPrincipal = getPrincipalFromURI("http://sub.sub1.example.com");
+  Assert.equal(
+    pm.testPermissionFromPrincipal(subsubPrincipal, "test/subdomains"),
+    pm.ALLOW_ACTION
+  );
+
+  // Another sub-domain shouldn't get the permission.
+  let sub2Principal = getPrincipalFromURI("http://sub2.example.com");
+  Assert.equal(
+    pm.testPermissionFromPrincipal(sub2Principal, "test/subdomains"),
+    pm.UNKNOWN_ACTION
+  );
+
+  // Remove current permissions.
+  pm.removeFromPrincipal(sub1Principal, "test/subdomains");
+  Assert.equal(
+    pm.testPermissionFromPrincipal(sub1Principal, "test/subdomains"),
+    pm.UNKNOWN_ACTION
+  );
+
+  // Adding the permission to the main domain. Checks if it is working.
+  let mainPrincipal = getPrincipalFromURI("http://example.com");
+  pm.addFromPrincipal(mainPrincipal, "test/subdomains", pm.ALLOW_ACTION, 0, 0);
+  Assert.equal(
+    pm.testPermissionFromPrincipal(mainPrincipal, "test/subdomains"),
+    pm.ALLOW_ACTION
+  );
+
+  // All sub-domains should have the permission now.
+  Assert.equal(
+    pm.testPermissionFromPrincipal(sub1Principal, "test/subdomains"),
+    pm.ALLOW_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(sub2Principal, "test/subdomains"),
+    pm.ALLOW_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(subsubPrincipal, "test/subdomains"),
+    pm.ALLOW_ACTION
+  );
+
+  // Remove current permissions.
+  pm.removeFromPrincipal(mainPrincipal, "test/subdomains");
+  Assert.equal(
+    pm.testPermissionFromPrincipal(mainPrincipal, "test/subdomains"),
+    pm.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(sub1Principal, "test/subdomains"),
+    pm.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(sub2Principal, "test/subdomains"),
+    pm.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(subsubPrincipal, "test/subdomains"),
+    pm.UNKNOWN_ACTION
+  );
+
+  // A sanity check that the previous implementation wasn't passing...
+  let crazyPrincipal = getPrincipalFromURI("http://com");
+  pm.addFromPrincipal(crazyPrincipal, "test/subdomains", pm.ALLOW_ACTION, 0, 0);
+  Assert.equal(
+    pm.testPermissionFromPrincipal(crazyPrincipal, "test/subdomains"),
+    pm.ALLOW_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(mainPrincipal, "test/subdomains"),
+    pm.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(sub1Principal, "test/subdomains"),
+    pm.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(sub2Principal, "test/subdomains"),
+    pm.UNKNOWN_ACTION
+  );
+  Assert.equal(
+    pm.testPermissionFromPrincipal(subsubPrincipal, "test/subdomains"),
+    pm.UNKNOWN_ACTION
+  );
+}
diff --git a/extensions/permissions/test/unit/xpcshell.ini b/extensions/permissions/test/unit/xpcshell.ini
new file mode 100644
index 0000000000..07ddf21953
--- /dev/null
+++ b/extensions/permissions/test/unit/xpcshell.ini
@@ -0,0 +1,59 @@
+[DEFAULT]
+head = head.js
+
+[test_permmanager_default_pref.js]
+[test_permmanager_defaults.js]
+[test_permmanager_expiration.js]
+skip-if =
+  win10_2004 # Bug 1718292
+  win11_2009 # Bug 1797751
+  os == "win" && os_version == "6.1" # Skip on Azure - frequent failure
+[test_permmanager_getAllByTypes.js]
+[test_permmanager_getAllByTypeSince.js]
+[test_permmanager_getAllForPrincipal.js]
+[test_permmanager_getAllWithTypePrefix.js]
+[test_permmanager_getPermissionObject.js]
+[test_permmanager_notifications.js]
+[test_permmanager_removeall.js]
+[test_permmanager_removebytype.js]
+[test_permmanager_removebytypesince.js]
+[test_permmanager_removesince.js]
+[test_permmanager_load_invalid_entries.js]
+skip-if = debug == true
+[test_permmanager_idn.js]
+[test_permmanager_subdomains.js]
+[test_permmanager_local_files.js]
+[test_permmanager_cleardata.js]
+[test_permmanager_removepermission.js]
+[test_permmanager_matchesuri.js]
+[test_permmanager_matches.js]
+[test_permmanager_migrate_4-7.js]
+skip-if = toolkit == 'android' # Android doesn't use places
+[test_permmanager_migrate_5-7a.js]
+skip-if = toolkit == 'android' # Android doesn't use places
+[test_permmanager_migrate_5-7b.js]
+skip-if = toolkit == 'android' # Android doesn't use places
+[test_permmanager_migrate_6-7a.js]
+skip-if = toolkit == 'android' # Android doesn't use places
+[test_permmanager_migrate_6-7b.js]
+skip-if = toolkit == 'android' # Android doesn't use places
+[test_permmanager_migrate_4-7_no_history.js]
+skip-if =
+  apple_silicon || toolkit == 'android' # Disabled due to bleedover with other tests when run in regular suites; passes in "failures" jobs
+[test_permmanager_migrate_7-8.js]
+skip-if = toolkit == 'android' # Android doesn't use places
+[test_permmanager_migrate_9-10.js]
+skip-if = toolkit == 'android' # Android doesn't use places
+[test_permmanager_migrate_10-11.js]
+skip-if = toolkit == 'android' # Android doesn't use places
+[test_permmanager_migrate_11-12.js]
+skip-if = toolkit == 'android' # Android doesn't use places
+[test_permmanager_oa_strip.js]
+[test_permmanager_site_scope.js]
+[test_permmanager_remove_add_update.js]
+skip-if = win10_2004 && bits == 64 # Bug 1718292
+[test_permmanager_ipc.js]
+# This test is meant to run on a multi process mode
+# and with file urls loaded in their own child process.
+skip-if = !e10s
+firefox-appdir = browser