1 files changed, 9 insertions, 3 deletions
diff --git a/toolkit/mozapps/update/tests/browser/head.js b/toolkit/mozapps/update/tests/browser/head.js
index c5acdad8e4..b606331fd3 100644
--- a/toolkit/mozapps/update/tests/browser/head.js
+++ b/toolkit/mozapps/update/tests/browser/head.js
@@ -368,9 +368,15 @@ function copyTestUpdater(attempt = 0) {
       testUpdater.copyToFollowingLinks(greBinDir, FILE_UPDATER_BIN);
 
       let greDir = getGREDir();
-      let updateSettingsIni = greDir.clone();
-      updateSettingsIni.append(FILE_UPDATE_SETTINGS_INI);
-      writeFile(updateSettingsIni, UPDATE_SETTINGS_CONTENTS);
+
+      // On macOS, update settings is a Framework, not an INI. This was already
+      // built into updater-xpcshell using the `UpdateSettings-xpcshell`
+      // Framework, so we don't need to do any additional work here.
+      if (AppConstants.platform != "macosx") {
+        let updateSettingsIni = greDir.clone();
+        updateSettingsIni.append(FILE_UPDATE_SETTINGS_INI);
+        writeFile(updateSettingsIni, UPDATE_SETTINGS_CONTENTS);
+      }
 
       let precomplete = greDir.clone();
       precomplete.append(FILE_PRECOMPLETE);