1 files changed, 19 insertions, 0 deletions
diff --git a/browser/extensions/screenshots/randomString.js b/browser/extensions/screenshots/randomString.js
new file mode 100644
index 0000000000..8ab27c73af
--- /dev/null
+++ b/browser/extensions/screenshots/randomString.js
@@ -0,0 +1,19 @@
+/* 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/. */
+
+/* exported randomString */
+
+"use strict";
+
+this.randomString = function randomString(length, chars) {
+  const randomStringChars =
+    "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+  chars = chars || randomStringChars;
+  let result = "";
+  for (let i = 0; i < length; i++) {
+    result += chars[Math.floor(Math.random() * chars.length)];
+  }
+  return result;
+};
+null;