9 files changed, 142 insertions, 0 deletions
diff --git a/tools/quitter/.eslintrc.js b/tools/quitter/.eslintrc.js
new file mode 100644
index 0000000000..ca92008960
--- /dev/null
+++ b/tools/quitter/.eslintrc.js
@@ -0,0 +1,11 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+module.exports = {
+  globals: {
+    cloneInto: true,
+  },
+};
diff --git a/tools/quitter/Makefile.in b/tools/quitter/Makefile.in
new file mode 100644
index 0000000000..bc0c0852cf
--- /dev/null
+++ b/tools/quitter/Makefile.in
@@ -0,0 +1,6 @@
+#
+# 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/.
+
+XPI_PKGNAME = quitter@mozilla.org
diff --git a/tools/quitter/background.js b/tools/quitter/background.js
new file mode 100644
index 0000000000..a915d953f9
--- /dev/null
+++ b/tools/quitter/background.js
@@ -0,0 +1,13 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* eslint-env webextensions */
+
+browser.runtime.onMessage.addListener(msg => {
+  if (msg === "quit") {
+    browser.quitter.quit();
+  }
+});
diff --git a/tools/quitter/contentscript.js b/tools/quitter/contentscript.js
new file mode 100644
index 0000000000..b0cfc70313
--- /dev/null
+++ b/tools/quitter/contentscript.js
@@ -0,0 +1,21 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* eslint-env webextensions */
+
+const Quitter = {
+  async quit() {
+    // This can be called before the background page has loaded,
+    // so we need to wait for it.
+    browser.runtime.sendMessage("quit").catch(() => {
+      setTimeout(Quitter.quit, 100);
+    });
+  },
+};
+
+window.wrappedJSObject.Quitter = cloneInto(Quitter, window, {
+  cloneFunctions: true,
+});
diff --git a/tools/quitter/manifest.json b/tools/quitter/manifest.json
new file mode 100644
index 0000000000..de7f5a6732
--- /dev/null
+++ b/tools/quitter/manifest.json
@@ -0,0 +1,34 @@
+{
+  "manifest_version": 2,
+
+  "applications": {
+    "gecko": {"id": "quitter@mozilla.org"}
+  },
+
+  "name": "Quitter",
+  "description": "Quit",
+  "version": "2019.12.03",
+  "author": "Mozilla",
+
+  "background": {
+    "scripts": ["background.js"]
+  },
+
+  "content_scripts": [{
+    "js": ["contentscript.js"],
+    "run_at": "document_start",
+    "match_about_blank": true,
+    "matches": ["<all_urls>"]
+  }],
+
+  "experiment_apis": {
+    "quitter": {
+      "schema": "schema.json",
+      "parent": {
+        "scopes": ["addon_parent"],
+        "script": "parent.js",
+        "paths": [["quitter", "quit"]]
+      }
+    }
+  }
+}
diff --git a/tools/quitter/moz.build b/tools/quitter/moz.build
new file mode 100644
index 0000000000..d782493355
--- /dev/null
+++ b/tools/quitter/moz.build
@@ -0,0 +1,17 @@
+# -*- 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/.
+
+XPI_NAME = "quitter"
+
+USE_EXTENSION_MANIFEST = True
+
+FINAL_TARGET_FILES += [
+    "background.js",
+    "contentscript.js",
+    "manifest.json",
+    "parent.js",
+    "schema.json",
+]
diff --git a/tools/quitter/parent.js b/tools/quitter/parent.js
new file mode 100644
index 0000000000..a79583c3d4
--- /dev/null
+++ b/tools/quitter/parent.js
@@ -0,0 +1,27 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/* globals ExtensionAPI */
+
+const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
+
+this.quitter = class extends ExtensionAPI {
+  getAPI(context) {
+    return {
+      quitter: {
+        async quit() {
+          let browserWindow = Services.wm.getMostRecentWindow(
+            "navigator:browser"
+          );
+          if (browserWindow && browserWindow.gBrowserInit) {
+            await browserWindow.gBrowserInit.idleTasksFinishedPromise;
+          }
+          Services.startup.quit(Ci.nsIAppStartup.eForceQuit);
+        },
+      },
+    };
+  }
+};
diff --git a/tools/quitter/quitter@mozilla.org.xpi b/tools/quitter/quitter@mozilla.org.xpi
new file mode 100644
index 0000000000..abf86b7914
--- /dev/null
+++ b/tools/quitter/quitter@mozilla.org.xpi
diff --git a/tools/quitter/schema.json b/tools/quitter/schema.json
new file mode 100644
index 0000000000..4c2e6fc86d
--- /dev/null
+++ b/tools/quitter/schema.json
@@ -0,0 +1,13 @@
+[
+  {
+    "namespace": "quitter",
+    "functions": [
+      {
+        "name": "quit",
+        "type": "function",
+        "async": true,
+        "parameters": []
+      }
+    ]
+  }
+]