diff --git a/package.json b/package.json
index ae1049648c..47a442cadb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "Stylus",
-  "version": "2.3.8",
+  "version": "2.3.9",
   "description": "Redesign the web with Stylus, a user styles manager",
   "license": "GPL-3.0-only",
   "repository": "openstyles/stylus",
diff --git a/src/background/popup-data.js b/src/background/popup-data.js
index a1aa845fc7..7c0049d300 100644
--- a/src/background/popup-data.js
+++ b/src/background/popup-data.js
@@ -15,7 +15,9 @@ export default async function makePopupData() {
   if (FIREFOX && tab.status === 'loading' && tab.url === kAboutBlank) {
     tab = await waitForTabUrl(tab.id);
   }
-  let url = tab.pendingUrl || tab.url || ''; // new Chrome uses pendingUrl while connecting
+  // In modern Chrome `url` is for the current tab's contents, so it may be undefined
+  // when a newly created tab is still connecting to `pendingUrl`.
+  let url = tab.url || tab.pendingUrl || '';
   let tmp;
   const td = tabCache.get(tab.id);
   const isOwn = url.startsWith(ownRoot);
diff --git a/src/manifest.json b/src/manifest.json
index 820d2ad3b3..75021c5964 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -1,6 +1,6 @@
 {
   "name": "Stylus",
-  "version": "2.3.8",
+  "version": "2.3.9",
   "minimum_chrome_version": "",
   "description": "__MSG_description__",
   "homepage_url": "https://add0n.com/stylus.html",