1 files changed, 12 insertions, 0 deletions
diff --git a/comm/mail/components/addrbook/content/vcard-edit/id-gen.mjs b/comm/mail/components/addrbook/content/vcard-edit/id-gen.mjs
new file mode 100644
index 0000000000..b4ce37bfda
--- /dev/null
+++ b/comm/mail/components/addrbook/content/vcard-edit/id-gen.mjs
@@ -0,0 +1,12 @@
+/* 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/. */
+
+function* vCardHtmlIdGen() {
+  let internalId = 0;
+  while (true) {
+    yield `vcard-id-${internalId++}`;
+  }
+}
+
+export let vCardIdGen = vCardHtmlIdGen();