1 files changed, 85 insertions, 0 deletions
diff --git a/browser/base/content/safeMode.js b/browser/base/content/safeMode.js
new file mode 100644
index 0000000000..090f057c69
--- /dev/null
+++ b/browser/base/content/safeMode.js
@@ -0,0 +1,85 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* 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/. */
+
+const appStartup = Services.startup;
+
+const { ResetProfile } = ChromeUtils.importESModule(
+  "resource://gre/modules/ResetProfile.sys.mjs"
+);
+
+var defaultToReset = false;
+
+function restartApp() {
+  appStartup.quit(appStartup.eForceQuit | appStartup.eRestart);
+}
+
+function resetProfile() {
+  // Set the reset profile environment variable.
+  Services.env.set("MOZ_RESET_PROFILE_RESTART", "1");
+}
+
+function showResetDialog() {
+  // Prompt the user to confirm the reset.
+  let retVals = {
+    reset: false,
+  };
+  window.openDialog(
+    "chrome://global/content/resetProfile.xhtml",
+    null,
+    "chrome,modal,centerscreen,titlebar,dialog=yes",
+    retVals
+  );
+  if (!retVals.reset) {
+    return;
+  }
+  resetProfile();
+  restartApp();
+}
+
+function onDefaultButton(event) {
+  if (defaultToReset) {
+    // Prevent starting into safe mode while restarting.
+    event.preventDefault();
+    // Restart to reset the profile.
+    resetProfile();
+    restartApp();
+  }
+  // Dialog will be closed by default Event handler.
+  // Continue in safe mode. No restart needed.
+}
+
+function onCancel() {
+  appStartup.quit(appStartup.eForceQuit);
+}
+
+function onExtra1() {
+  if (defaultToReset) {
+    // Continue in safe mode
+    window.close();
+  }
+  // The reset dialog will handle starting the reset process if the user confirms.
+  showResetDialog();
+}
+
+function onLoad() {
+  const dialog = document.getElementById("safeModeDialog");
+  if (appStartup.automaticSafeModeNecessary) {
+    document.getElementById("autoSafeMode").hidden = false;
+    document.getElementById("safeMode").hidden = true;
+    if (ResetProfile.resetSupported()) {
+      document.getElementById("resetProfile").hidden = false;
+    } else {
+      // Hide the reset button is it's not supported.
+      dialog.getButton("extra1").hidden = true;
+    }
+  } else if (!ResetProfile.resetSupported()) {
+    // Hide the reset button and text if it's not supported.
+    dialog.getButton("extra1").hidden = true;
+    document.getElementById("resetProfileInstead").hidden = true;
+  }
+  document.addEventListener("dialogaccept", onDefaultButton);
+  document.addEventListener("dialogcancel", onCancel);
+  document.addEventListener("dialogextra1", onExtra1);
+}