1 files changed, 6 insertions, 2 deletions
diff --git a/browser/components/extensions/parent/ext-browser.js b/browser/components/extensions/parent/ext-browser.js
index 7b01d15101..d2f72d4f46 100644
--- a/browser/components/extensions/parent/ext-browser.js
+++ b/browser/components/extensions/parent/ext-browser.js
@@ -67,8 +67,12 @@ global.openOptionsPage = extension => {
     return Promise.reject({ message: "No browser window available" });
   }
 
-  if (extension.manifest.options_ui.open_in_tab) {
-    window.switchToTabHavingURI(extension.manifest.options_ui.page, true, {
+  const { optionsPageProperties } = extension;
+  if (!optionsPageProperties) {
+    return Promise.reject({ message: "No options page" });
+  }
+  if (optionsPageProperties.open_in_tab) {
+    window.switchToTabHavingURI(optionsPageProperties.page, true, {
       triggeringPrincipal: extension.principal,
     });
     return Promise.resolve();