fix https://github.com/uBlockOrigin/uBlock-issues/issues/144

src/js/messaging.js

@@ -792,15 +792,21 @@ var restoreUserData = function(request) {
     vAPI.localStorage.removeItem('immediateHiddenSettings');
 };
 
+// Remove all stored data but keep global counts, people can become
+// quite attached to numbers
+
 var resetUserData = function() {
-    vAPI.cacheStorage.clear();
-    vAPI.storage.clear();
-    vAPI.localStorage.removeItem('immediateHiddenSettings');
-
-    // Keep global counts, people can become quite attached to numbers
-    µb.saveLocalSettings();
-
+    let count = 3;
+    let countdown = ( ) => {
+        count -= 1;
+        if ( count === 0 ) {
             vAPI.app.restart();
+        }
+    };
+    vAPI.cacheStorage.clear(countdown); // 1
+    vAPI.storage.clear(countdown);      // 2
+    µb.saveLocalSettings(countdown);    // 3
+    vAPI.localStorage.removeItem('immediateHiddenSettings');
 };
 
 /******************************************************************************/

src/js/storage.js

@@ -1,7 +1,7 @@
 /*******************************************************************************
 
     uBlock Origin - a browser extension to block requests.
-    Copyright (C) 2014-2018 Raymond Hill
+    Copyright (C) 2014-present Raymond Hill
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -52,17 +52,17 @@
 /******************************************************************************/
 
 µBlock.saveLocalSettings = (function() {
-    var saveAfter = 4 * 60 * 1000;
+    let saveAfter = 4 * 60 * 1000;
 
-    var save = function() {
+    let save = function(callback) {
         this.localSettingsLastSaved = Date.now();
-        vAPI.storage.set(this.localSettings);
+        vAPI.storage.set(this.localSettings, callback);
     };
 
-    var onTimeout = function() {
-        var µb = µBlock;
+    let onTimeout = ( ) => {
+        let µb = µBlock;
         if ( µb.localSettingsLastModified > µb.localSettingsLastSaved ) {
-            save.call(µb);
+            µb.saveLocalSettings();
         }
         vAPI.setTimeout(onTimeout, saveAfter);
     };