Merge branch 'feature/hardening-v2.0.1' — Hardening Release v2.0.1

Security: URL-Validierung (bgUrl + Import), immutable Data-Mapping
Stability: Widget Event-System (EventTarget), transitionend Race Fix
Privacy: Lokale Letter-Icons statt Google Favicons API
Compat: backdrop-filter Fallback, _locales in Release-ZIPs
i18n: 10 fehlende Übersetzungs-Keys ergänzt
Quality: Clock Interval ID, Notes-Import über init()

.github/workflows/release.yml

@@ -25,7 +25,7 @@ jobs:
         run: |
           mkdir -p dist
           zip -r "dist/hellion-newtab-${{ steps.version.outputs.tag }}-chrome.zip" \
-            manifest.json newtab.html src/js/*.js src/css/ assets/ \
+            manifest.json newtab.html src/js/*.js src/css/ assets/ _locales/ \
             -x "*.git*" "dist/*" ".github/*" "src/js/opera/*"
 
       - name: Create Firefox ZIP (Manifest V3)
@@ -33,7 +33,7 @@ jobs:
           cp manifest.json manifest.chrome-backup.json
           cp manifest.firefox.json manifest.json
           zip -r "dist/hellion-newtab-${{ steps.version.outputs.tag }}-firefox.zip" \
-            manifest.json newtab.html src/js/*.js src/css/ assets/ \
+            manifest.json newtab.html src/js/*.js src/css/ assets/ _locales/ \
             -x "*.git*" "dist/*" ".github/*" "manifest.chrome-backup.json" "manifest.firefox.json" "src/js/opera/*"
           mv manifest.chrome-backup.json manifest.json
 
@@ -42,7 +42,7 @@ jobs:
           cp manifest.json manifest.chrome-backup.json
           cp manifest.opera.json manifest.json
           zip -r "dist/hellion-newtab-${{ steps.version.outputs.tag }}-opera.zip" \
-            manifest.json newtab.html src/js/*.js src/js/opera/ src/css/ assets/ \
+            manifest.json newtab.html src/js/*.js src/js/opera/ src/css/ assets/ _locales/ \
             -x "*.git*" "dist/*" ".github/*" "manifest.chrome-backup.json" "manifest.opera.json"
           mv manifest.chrome-backup.json manifest.json
 

CHANGELOG.md

@@ -6,6 +6,29 @@ All notable changes per version. Format based on [Keep a Changelog](https://keep
 
 ---
 
+### v2.0.1 — 16.04.2026
+
+#### Security
+
+- **Background URL validation** — Only `blob:` and `data:image/` protocols allowed in CSS `backgroundImage` (prevents CSS injection via manipulated storage)
+- **Import URL validation** — `javascript:`, `data:`, and other unsafe protocols are blocked during JSON import
+- **Immutable import mapping** — Imported boards, bookmarks, and notes are sanitized with explicit field selection and string length limits
+
+#### Fixed
+
+- **Widget minimize race condition** — Replaced `setTimeout` with `transitionend` event; `openWidget()` during animation no longer causes display glitch
+- **Notes import mutation** — Import now uses `Notes.init()` instead of directly setting `Notes._notes`
+- **Complete i18n coverage** — 5 header button tooltips and 3 settings button texts now have `data-i18n` attributes (10 new translation keys)
+
+#### Changed
+
+- **Widget event system** — `WidgetManager` now dispatches `widget:close`, `widget:minimize`, `widget:open` CustomEvents via `EventTarget`. Calculator, Timer, and ImageRef use `WidgetManager.on()` instead of monkey-patching
+- **Local favicon icons** — Replaced Google Favicons API with local colored letter icons (deterministic hue per title). Zero external network requests, Brave Shields compatible
+- **backdrop-filter fallback** — `@supports not (backdrop-filter)` block with `--bg-solid-fallback` per theme for Brave Shields compatibility
+- **Clock interval cleanup** — `setInterval` ID stored in variable
+
+---
+
 ### v2.0.0 — 22.03.2026
 
 #### New Features

manifest.firefox.json

@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "name": "__MSG_extName__",
   "default_locale": "en",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "__MSG_extDesc__",
   "author": "Hellion Online Media - Florian Wathling",
   "homepage_url": "https://hellion-media.de",

manifest.json

@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "name": "__MSG_extName__",
   "default_locale": "en",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "__MSG_extDesc__",
   "author": "Hellion Online Media - Florian Wathling",
   "homepage_url": "https://hellion-media.de",

manifest.opera.json

@@ -2,7 +2,7 @@
   "manifest_version": 3,
   "name": "__MSG_extName__",
   "default_locale": "en",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "__MSG_extDesc__",
   "author": "Hellion Online Media - Florian Wathling",
   "homepage_url": "https://hellion-media.de",

newtab.html

@@ -23,23 +23,23 @@
       </div>
     </div>
     <div class="header-right">
-      <button class="btn-icon" id="btnImport" title="Bookmarks importieren (HTML)">
+      <button class="btn-icon" id="btnImport" title="Bookmarks importieren (HTML)" data-i18n-title="header.import_title">
         <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M21 15v4a2 2 0 01-2 2H5a2 2 0 01-2-2v-4"/><polyline points="17 8 12 3 7 8"/><line x1="12" y1="3" x2="12" y2="15"/></svg>
         <span data-i18n="header.import">Import</span>
       </button>
-      <button class="btn-icon" id="btnAddBoard" title="Neues Board hinzufügen">
+      <button class="btn-icon" id="btnAddBoard" title="Neues Board hinzufügen" data-i18n-title="header.board_title">
         <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="12" y1="5" x2="12" y2="19"/><line x1="5" y1="12" x2="19" y2="12"/></svg>
         <span data-i18n="header.board">Board</span>
       </button>
-      <button class="btn-icon" id="btnNote" title="Schnellnotiz">
+      <button class="btn-icon" id="btnNote" title="Schnellnotiz" data-i18n-title="header.note_title">
         <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M12 20h9"/><path d="M16.5 3.5a2.121 2.121 0 013 3L7 19l-4 1 1-4L16.5 3.5z"/></svg>
         <span data-i18n="header.note">Note</span>
       </button>
-      <button class="btn-icon" id="btnTheme" title="Darstellung & Theme">
+      <button class="btn-icon" id="btnTheme" title="Darstellung & Theme" data-i18n-title="header.theme_title">
         <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M12 2a10 10 0 100 20 4 4 0 01-1-7.9 1 1 0 011-.1h1a2 2 0 002-2V7a5 5 0 00-3-4.5"/><circle cx="7" cy="10" r="1.5"/><circle cx="13" cy="6" r="1.5"/><circle cx="17" cy="10" r="1.5"/><circle cx="9" cy="17" r="1.5"/></svg>
         <span data-i18n="header.theme">Darstellung</span>
       </button>
-      <button class="btn-icon" id="btnSettings" title="Einstellungen">
+      <button class="btn-icon" id="btnSettings" title="Einstellungen" data-i18n-title="header.settings_title">
         <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="3"/><path d="M19.4 15a1.65 1.65 0 00.33 1.82l.06.06a2 2 0 010 2.83 2 2 0 01-2.83 0l-.06-.06a1.65 1.65 0 00-1.82-.33 1.65 1.65 0 00-1 1.51V21a2 2 0 01-4 0v-.09A1.65 1.65 0 009 19.4a1.65 1.65 0 00-1.82.33l-.06.06a2 2 0 01-2.83-2.83l.06-.06A1.65 1.65 0 004.68 15a1.65 1.65 0 00-1.51-1H3a2 2 0 010-4h.09A1.65 1.65 0 004.6 9a1.65 1.65 0 00-.33-1.82l-.06-.06a2 2 0 012.83-2.83l.06.06A1.65 1.65 0 009 4.68a1.65 1.65 0 001-1.51V3a2 2 0 014 0v.09a1.65 1.65 0 001 1.51 1.65 1.65 0 001.82-.33l.06-.06a2 2 0 012.83 2.83l-.06.06A1.65 1.65 0 0019.4 9a1.65 1.65 0 001.51 1H21a2 2 0 010 4h-.09a1.65 1.65 0 00-1.51 1z"/></svg>
         <span data-i18n="header.settings">Settings</span>
       </button>
@@ -195,7 +195,7 @@
               <span class="setting-label" data-i18n="settings.onboarding">Onboarding wiederholen</span>
               <span class="setting-desc" data-i18n="settings.onboarding.desc">Willkommens-Tour erneut anzeigen</span>
             </div>
-            <button class="btn-small" id="btnRestartOnboarding">Start</button>
+            <button class="btn-small" id="btnRestartOnboarding" data-i18n="settings.onboarding_btn">Start</button>
           </div>
         </div>
       </section>
@@ -212,7 +212,7 @@
               <span class="setting-label" data-i18n="settings.reset">Alles zurücksetzen</span>
               <span class="setting-desc" data-i18n="settings.reset.desc">Löscht alle Boards, Notes und Einstellungen</span>
             </div>
-            <button class="btn-danger" id="btnResetAll">Reset</button>
+            <button class="btn-danger" id="btnResetAll" data-i18n="settings.reset_btn">Reset</button>
           </div>
         </div>
       </section>
@@ -223,7 +223,7 @@
     <div class="panel-footer">
       <div class="about-block">
         <div class="about-logo" data-i18n="about.title">⬡ HELLION NEWTAB</div>
-        <div class="about-version">Version 2.0.0 · by Hellion Online Media</div>
+        <div class="about-version">Version 2.0.1 · by Hellion Online Media</div>
 
         <div class="about-links">
           <a href="https://hellion-media.de/impressum" target="_blank" class="about-link">
@@ -371,7 +371,7 @@
             <span class="setting-label" data-i18n="settings.bg_upload">Datei hochladen</span>
             <span class="setting-desc" data-i18n="settings.bg_upload.desc">Lokales Bild als Hintergrund verwenden</span>
           </div>
-          <button class="btn-small" id="btnBgFile">Upload</button>
+          <button class="btn-small" id="btnBgFile" data-i18n="settings.bg_upload_btn">Upload</button>
           <input type="file" id="bgFileInput" accept="image/*" class="hidden" />
         </div>
       </div>

src/css/main.css

@@ -68,6 +68,19 @@
   --board-hover-border:  rgba(179,89,255,0.18);
   --toggle-on-bg:        rgba(214,92,255,0.22);
   --logo-shadow:         rgba(179,89,255,0.35);
+  --bg-solid-fallback:   #0a060e;
+}
+
+/* Fallback fuer Browser die backdrop-filter blockieren (z.B. Brave Shields) */
+@supports not (backdrop-filter: blur(1px)) {
+  .board,
+  .widget,
+  .settings-panel,
+  .dialog-box,
+  .theme-modal,
+  .search-bar {
+    background-color: var(--bg-solid-fallback, var(--bg-primary));
+  }
 }
 
 /* ============================================
@@ -91,6 +104,7 @@
   --board-hover-border:  rgba(179,89,255,0.18);
   --toggle-on-bg:       rgba(214,92,255,0.22);
   --logo-shadow:         rgba(179,89,255,0.35);
+  --bg-solid-fallback:   #0a060e;
 }
 [data-theme="nebula"] .board         { border-color: rgba(214,92,255,0.10); }
 [data-theme="nebula"] .bm-item:hover { background: rgba(214,92,255,0.05); }
@@ -116,6 +130,7 @@
   --board-hover-border: rgba(212, 189, 138, 0.20);
   --toggle-on-bg:       rgba(200,168,74,0.22);
   --logo-shadow:        rgba(212, 189, 138, 0.40);
+  --bg-solid-fallback:  #080c16;
   letter-spacing:       0.5px;
 }
 
@@ -146,6 +161,7 @@
   --board-hover-border: rgba(157, 92, 255, 0.22);
   --toggle-on-bg:       rgba(224,128,48,0.22);
   --logo-shadow:        rgba(157, 92, 255, 0.45);
+  --bg-solid-fallback:  #08050f;
 }
 [data-theme="event-horizon"] .board         { border-color: rgba(157, 92, 255, 0.15); }
 [data-theme="event-horizon"] .bm-item:hover { background: rgba(157, 92, 255, 0.08); }
@@ -172,6 +188,7 @@
   --board-hover-border:  rgba(46, 184, 184, 0.20);
   --toggle-on-bg:        rgba(78,207,207,0.22);
   --logo-shadow:         rgba(46, 184, 184, 0.45);
+  --bg-solid-fallback:   #060a0a;
 }
 [data-theme="merchantman"] .board         { border-color: rgba(46, 184, 184, 0.12); }
 [data-theme="merchantman"] .bm-item:hover { background: rgba(46, 184, 184, 0.06); }
@@ -197,6 +214,7 @@
   --board-hover-border:  rgba(125, 179, 255, 0.22);
   --toggle-on-bg:        rgba(91,159,255,0.22);
   --logo-shadow:         rgba(125, 179, 255, 0.50);
+  --bg-solid-fallback:   #070a14;
 }
 [data-theme="julia-jin"] .logo           { font-family: 'Cinzel', serif; letter-spacing: 5px; text-transform: uppercase; }
 [data-theme="julia-jin"] .clock          { font-family: 'Cinzel', serif; font-weight: 600; }
@@ -225,6 +243,7 @@
   --board-hover-border:  rgba(255, 140, 61, 0.22);
   --toggle-on-bg:       rgba(240,124,48,0.22);
   --logo-shadow:         rgba(255, 140, 61, 0.45);
+  --bg-solid-fallback:   #0f0a08;
 }
 [data-theme="sc-sunset"] .board { 
   border-color: rgba(255, 140, 61, 0.15); 
@@ -253,6 +272,7 @@
   --board-hover-border:  rgba(50, 255, 106, 0.20);
   --toggle-on-bg:        rgba(34,204,68,0.20);
   --logo-shadow:         rgba(50, 255, 106, 0.40);
+  --bg-solid-fallback:   #050805;
   --danger:              #ff4d4d;
 }
 [data-theme="hellion-hud"] .board {
@@ -287,6 +307,7 @@
   --board-hover-border:  rgba(30, 255, 142, 0.25);
   --toggle-on-bg:       rgba(0,232,122,0.18);
   --logo-shadow:         rgba(30, 255, 142, 0.60);
+  --bg-solid-fallback:   #040705;
 }
 [data-theme="hellion-energy"] .board {
   border-color: rgba(30, 255, 142, 0.15);
@@ -322,6 +343,7 @@
   --board-hover-border:  rgba(0, 180, 216, 0.25);
   --toggle-on-bg:        rgba(0, 180, 216, 0.20);
   --logo-shadow:         rgba(0, 180, 216, 0.40);
+  --bg-solid-fallback:   #1a0f08;
 }
 [data-theme="satisfactory"] .logo        { font-family: 'Rajdhani', sans-serif; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; }
 [data-theme="satisfactory"] .clock       { font-family: 'Rajdhani', sans-serif; font-weight: 600; color: var(--accent); }
@@ -352,6 +374,7 @@
   --board-hover-border:  rgba(46, 196, 160, 0.22);
   --toggle-on-bg:        rgba(46, 196, 160, 0.18);
   --logo-shadow:         rgba(46, 196, 160, 0.50);
+  --bg-solid-fallback:   #020d0c;
 }
 [data-theme="avorion"] .logo        { font-family: 'Rajdhani', sans-serif; font-weight: 500; letter-spacing: 6px; text-transform: uppercase; }
 [data-theme="avorion"] .clock       { font-family: 'Rajdhani', sans-serif; font-weight: 400; color: var(--accent); }
@@ -382,6 +405,7 @@
   --board-hover-border:  rgba(94, 194, 255, 0.25);
   --toggle-on-bg:        rgba(94, 194, 255, 0.20);
   --logo-shadow:         rgba(94, 194, 255, 0.45);
+  --bg-solid-fallback:   #0d0f12;
 }
 [data-theme="hellion-stealth"] .logo        { font-family: 'Rajdhani', sans-serif; font-weight: 700; letter-spacing: 4px; }
 [data-theme="hellion-stealth"] .clock       { font-family: 'Rajdhani', sans-serif; font-weight: 600; color: var(--accent); }
@@ -562,12 +586,13 @@ html, body {
 
 body.compact .bm-item { padding: var(--spacing-compact) 10px; }
 
-.bm-favicon { width: 14px; height: 14px; flex-shrink: 0; border-radius: 2px; opacity: 0.85; }
+.bm-favicon-local {
-.bm-favicon-fallback {
+  width: 16px; height: 16px; flex-shrink: 0;
-  width: 14px; height: 14px; flex-shrink: 0;
+  border-radius: 3px;
-  background: var(--accent-dim); border-radius: 2px;
   display: flex; align-items: center; justify-content: center;
-  font-size: 8px; color: var(--accent);
+  font-size: 9px; font-weight: 600;
+  color: #fff;
+  line-height: 1;
 }
 .bm-text { flex: 1; min-width: 0; }
 .bm-title { font-size: 12px; font-weight: 400; color: var(--text-primary); line-height: 1.3; }

src/js/app.js

@@ -105,7 +105,7 @@ async function checkBackupReminder() {
     const notesData = (widgetData && Array.isArray(widgetData.notes)) ? widgetData.notes : [];
     const calcHistory = (widgetData && widgetData.calculator) ? widgetData.calculator.history || [] : [];
     const timerPresets = (widgetData && widgetData.timer) ? widgetData.timer.presets || [] : [];
-    const data = { version: '2.0.0', exported: new Date().toISOString(), boards, settings, notes: notesData, calculator: calcHistory, timerPresets };
+    const data = { version: '2.0.1', exported: new Date().toISOString(), boards, settings, notes: notesData, calculator: calcHistory, timerPresets };
     const blob = new Blob([JSON.stringify(data, null, 2)], { type: 'application/json' });
     const url  = URL.createObjectURL(blob);
     const a    = document.createElement('a');
@@ -132,7 +132,7 @@ function startClock() {
       `${t(DAY_KEYS[now.getDay()])}, ${String(now.getDate()).padStart(2,'0')}. ${t(MONTH_KEYS[now.getMonth()])}`;
   }
   tick();
-  setInterval(tick, 1000);
+  const clockInterval = setInterval(tick, 1000);
 }
 
 // ---- GLOBALE EVENTS (Header-Buttons, Modals, Import) ----

src/js/boards.js

@@ -215,19 +215,11 @@ function createBmEl(bm) {
   li.dataset.bmUrl = bm.url;
   li.draggable = true;
 
-  const favicon = document.createElement('img');
+  const favicon = document.createElement('div');
-  favicon.className = 'bm-favicon';
+  favicon.className = 'bm-favicon-local';
-  favicon.width = 14;
+  favicon.textContent = bm.title.charAt(0).toUpperCase();
-  favicon.height = 14;
+  const hue = (bm.title.charCodeAt(0) * 137) % 360;
-  favicon.src = getFaviconUrl(bm.url);
+  favicon.style.backgroundColor = `hsl(${hue}, 45%, 35%)`;
-  favicon.addEventListener('error', function() {
-    this.classList.add('hidden');
-    this.nextElementSibling.classList.remove('hidden');
-  });
-
-  const fallback = document.createElement('div');
-  fallback.className = 'bm-favicon-fallback hidden';
-  fallback.textContent = bm.title.charAt(0).toUpperCase();
 
   const textDiv = document.createElement('div');
   textDiv.className = 'bm-text';
@@ -247,7 +239,6 @@ function createBmEl(bm) {
   deleteBtn.textContent = '✕';
 
   li.appendChild(favicon);
-  li.appendChild(fallback);
   li.appendChild(textDiv);
   li.appendChild(deleteBtn);
 

src/js/calculator.js

@@ -689,41 +689,32 @@ const Calculator = {
       await this.open();
     }
 
-    // Close-Event abfangen: WidgetManager.close() ueberschreiben
+    // Widget-Lifecycle-Events
-    const origClose = WidgetManager.close.bind(WidgetManager);
     const self = this;
-    WidgetManager.close = function(id) {
+    WidgetManager.on('widget:close', (e) => {
-      origClose(id);
+      if (e.detail.id === self.WIDGET_ID) {
-      if (id === self.WIDGET_ID) {
         self.onClose();
       }
-    };
+    });
 
-    // Minimize-Event abfangen
+    WidgetManager.on('widget:minimize', (e) => {
-    const origMinimize = WidgetManager.minimize.bind(WidgetManager);
+      if (e.detail.id === self.WIDGET_ID) {
-    WidgetManager.minimize = async function(id) {
-      await origMinimize(id);
-      if (id === self.WIDGET_ID) {
         self._isOpen = false;
-        await self.save();
+        self.save();
       }
-    };
+    });
 
-    // Open-Event abfangen
+    WidgetManager.on('widget:open', (e) => {
-    const origOpen = WidgetManager.openWidget.bind(WidgetManager);
+      if (e.detail.id === self.WIDGET_ID) {
-    WidgetManager.openWidget = async function(id) {
-      await origOpen(id);
-      if (id === self.WIDGET_ID) {
         self._isOpen = true;
-        // Body neu rendern (war durch minimize entfernt)
         const body = WidgetManager.getBody(self.WIDGET_ID);
         if (body && body.children.length === 0) {
           self.renderBody(body);
         }
         const entry = WidgetManager._widgets.get(self.WIDGET_ID);
         if (entry) self._bindKeyboard(entry.el);
-        await self.save();
+        self.save();
-      }
+      }
-    };
+    });
   }
 };

src/js/data.js

@@ -9,11 +9,26 @@ function initDataButtons() {
   const jsonInput = document.getElementById('jsonImportInput');
   if (!btnExport || !btnImport) return;
 
+  /**
+   * Prueft ob eine URL ein sicheres Protokoll hat.
+   * Blockiert javascript:, data:, vbscript: etc.
+   * @param {string} url
+   * @returns {boolean}
+   */
+  function isSafeUrl(url) {
+    try {
+      const u = new URL(url);
+      return ['http:', 'https:', 'ftp:'].includes(u.protocol);
+    } catch {
+      return false;
+    }
+  }
+
   // Export (inkl. Notes)
   btnExport.addEventListener('click', async () => {
     const widgetData = await Store.get('widgetStates');
     const data = {
-      version: '2.0.0',
+      version: '2.0.1',
       exported: new Date().toISOString(),
       boards,
       settings,
@@ -38,18 +53,21 @@ function initDataButtons() {
     try {
       const data = JSON.parse(await file.text());
       if (!Array.isArray(data.boards)) throw new Error(t('data.invalid_format'));
-      const validBoards = data.boards.filter(b => {
+      const validBoards = data.boards
-        if (!b || typeof b.title !== 'string' || !Array.isArray(b.bookmarks)) return false;
+        .filter(b => b && typeof b.title === 'string' && Array.isArray(b.bookmarks))
-        b.id = b.id || uid();
+        .map(b => ({
-        b.blurred = !!b.blurred;
+          id: b.id || uid(),
-        b.bookmarks = b.bookmarks.filter(bm => {
+          title: String(b.title).slice(0, 100),
-          if (!bm || typeof bm.title !== 'string' || typeof bm.url !== 'string') return false;
+          blurred: !!b.blurred,
-          bm.id = bm.id || uid();
+          bookmarks: b.bookmarks
-          bm.desc = bm.desc || '';
+            .filter(bm => bm && typeof bm.title === 'string' && isSafeUrl(bm.url))
-          return true;
+            .map(bm => ({
-        });
+              id: bm.id || uid(),
-        return true;
+              title: String(bm.title).slice(0, 200),
-      });
+              url: bm.url,
+              desc: String(bm.desc || '').slice(0, 500)
+            }))
+        }));
       if (validBoards.length === 0) throw new Error(t('data.no_boards'));
       const ok = await HellionDialog.confirm(
         t('data.import_confirm', { count: validBoards.length }),
@@ -65,18 +83,26 @@ function initDataButtons() {
       const existingWidgets = await Store.get('widgetStates') || {};
       if (Array.isArray(data.notes) && data.notes.length > 0) {
         const existingNotes = Array.isArray(existingWidgets.notes) ? existingWidgets.notes : [];
-        const importNotes = data.notes.filter(n => {
+        const importNotes = data.notes
-          if (!n || !n.id || !n.template) return false;
+          .filter(n => n && n.id && n.template)
-          n.checklistItems = Array.isArray(n.checklistItems) ? n.checklistItems : [];
+          .map(n => ({
-          return true;
+            id: n.id,
-        });
+            template: ['note', 'checklist'].includes(n.template) ? n.template : 'note',
+            title: String(n.title || '').slice(0, 200),
+            content: String(n.content || '').slice(0, 5000),
+            x: typeof n.x === 'number' ? n.x : 120,
+            y: typeof n.y === 'number' ? n.y : 80,
+            width: typeof n.width === 'number' ? n.width : 280,
+            height: typeof n.height === 'number' ? n.height : 220,
+            open: n.open !== false,
+            checklistItems: Array.isArray(n.checklistItems) ? n.checklistItems : []
+          }));
         // Limit beachten
         const spaceLeft = Notes.MAX_NOTES - existingNotes.length;
         const toImport = importNotes.slice(0, spaceLeft);
         if (toImport.length > 0) {
           const merged = [...existingNotes, ...toImport];
           existingWidgets.notes = merged;
-          Notes._notes = merged;
           notesImported = toImport.length;
         }
       }
@@ -90,7 +116,6 @@ function initDataButtons() {
             existingWidgets.calculator = { x: 400, y: 120, width: 280, height: 400, open: false, history: [] };
           }
           existingWidgets.calculator.history = calcHistory.slice(0, Calculator.MAX_HISTORY);
-          Calculator._history = existingWidgets.calculator.history;
           calcImported = true;
         }
       }
@@ -104,7 +129,6 @@ function initDataButtons() {
             existingWidgets.timer = { x: 600, y: 80, width: 260, height: 360, open: false, presets: [] };
           }
           existingWidgets.timer.presets = validPresets.slice(0, Timer.MAX_PRESETS);
-          Timer._presets = existingWidgets.timer.presets;
           timerImported = true;
         }
       }
@@ -112,6 +136,11 @@ function initDataButtons() {
       // Gemeinsam speichern
       await Store.set('widgetStates', existingWidgets);
 
+      // Widget-Module neu aus Storage laden (kein direkter Zugriff auf Internals)
+      if (notesImported > 0) await Notes.init();
+      if (calcImported) await Calculator.load();
+      if (timerImported) await Timer.load();
+
       const noteMsg = notesImported > 0 ? t('data.notes_suffix', { count: notesImported }) : '';
       const calcMsg = calcImported ? t('data.calc_suffix') : '';
       const timerMsg = timerImported ? t('data.timer_suffix') : '';

src/js/i18n.js

@@ -202,6 +202,13 @@ const STRINGS = {
     'header.theme':            'Darstellung',
     'header.settings':         'Einstellungen',
 
+    // Header Tooltips
+    'header.import_title':       'Bookmarks importieren (HTML)',
+    'header.board_title':        'Neues Board hinzufügen',
+    'header.note_title':         'Schnellnotiz',
+    'header.theme_title':        'Darstellung & Theme',
+    'header.settings_title':     'Einstellungen',
+
     // Settings-Panel Überschrift
     'settings.title':          'Einstellungen',
 
@@ -255,6 +262,13 @@ const STRINGS = {
     'settings.bg_upload.desc':     'Lokales Bild als Hintergrund verwenden',
     'settings.search_engine_toggle': 'Suchmaschine wechseln',
 
+    // Settings Buttons + Validierung
+    'settings.onboarding_btn':   'Start',
+    'settings.reset_btn':        'Reset',
+    'settings.bg_upload_btn':    'Upload',
+    'settings.bg_invalid_url':   'Nur lokale Bilder (Upload) sind als Hintergrund erlaubt.',
+    'settings.bg_invalid_url.title': 'Ungültige URL',
+
     // Modals
     'modal.new_board':         'Neues Board',
     'modal.board_name':        'Board-Name...',
@@ -493,6 +507,13 @@ const STRINGS = {
     'header.theme':            'Theme',
     'header.settings':         'Settings',
 
+    // Header Tooltips
+    'header.import_title':       'Import bookmarks (HTML)',
+    'header.board_title':        'Add new board',
+    'header.note_title':         'Quick note',
+    'header.theme_title':        'Appearance & Theme',
+    'header.settings_title':     'Settings',
+
     // Settings panel heading
     'settings.title':          'Settings',
 
@@ -546,6 +567,13 @@ const STRINGS = {
     'settings.bg_upload.desc':     'Use a local image as background',
     'settings.search_engine_toggle': 'Switch search engine',
 
+    // Settings Buttons + Validation
+    'settings.onboarding_btn':   'Start',
+    'settings.reset_btn':        'Reset',
+    'settings.bg_upload_btn':    'Upload',
+    'settings.bg_invalid_url':   'Only local images (upload) are allowed as background.',
+    'settings.bg_invalid_url.title': 'Invalid URL',
+
     // Modals
     'modal.new_board':         'New Board',
     'modal.board_name':        'Board name...',

src/js/image-ref.js

@@ -460,41 +460,32 @@ const ImageRef = {
       });
     }
 
-    // Close-Event abfangen
+    // Widget-Lifecycle-Events
     const self = this;
-    const prevClose = WidgetManager.close;
+    WidgetManager.on('widget:close', (e) => {
-    WidgetManager.close = function(id) {
+      const isImage = self._images.some(img => img.id === e.detail.id);
-      prevClose.call(WidgetManager, id);
-      // Pruefen ob es ein Image-Widget ist
-      const isImage = self._images.some(img => img.id === id);
       if (isImage) {
-        self.onClose(id);
+        self.onClose(e.detail.id);
       }
-    };
+    });
 
-    // Minimize-Event abfangen
+    WidgetManager.on('widget:minimize', (e) => {
-    const prevMinimize = WidgetManager.minimize;
+      const isImage = self._images.some(img => img.id === e.detail.id);
-    WidgetManager.minimize = async function(id) {
-      await prevMinimize.call(WidgetManager, id);
-      const isImage = self._images.some(img => img.id === id);
       if (isImage) {
-        await self.save();
+        self.save();
       }
-    };
+    });
 
-    // Open-Event abfangen
+    WidgetManager.on('widget:open', (e) => {
-    const prevOpen = WidgetManager.openWidget;
+      const imgData = self._images.find(img => img.id === e.detail.id);
-    WidgetManager.openWidget = async function(id) {
-      await prevOpen.call(WidgetManager, id);
-      const imgData = self._images.find(img => img.id === id);
       if (imgData) {
-        const body = WidgetManager.getBody(id);
+        const body = WidgetManager.getBody(e.detail.id);
         if (body && body.children.length === 0) {
-          const dataUrl = self._getSessionImage(id);
+          const dataUrl = self._getSessionImage(e.detail.id);
           self.renderBody(imgData, body, dataUrl);
         }
-        await self.save();
+        self.save();
-      }
+      }
-    };
+    });
   }
 };

src/js/settings.js

@@ -23,6 +23,17 @@ function closeThemeModal() {
   overlay.classList.remove('active');
 }
 
+/**
+ * Prueft ob eine Background-URL sicher fuer CSS-Einbettung ist.
+ * Erlaubt nur blob: und data:image/ Protokolle (aus File Upload).
+ * @param {string} url
+ * @returns {boolean}
+ */
+function isValidBgUrl(url) {
+  return typeof url === 'string' && url.length > 0 &&
+    (url.startsWith('blob:') || url.startsWith('data:image/'));
+}
+
 // ---- ACCORDION ----
 function initAccordion() {
   const defaultOpen = new Set(['widgets']);
@@ -89,8 +100,10 @@ function applySettings() {
 
   applyTheme(settings.theme || 'nebula', !!settings.bgUrl);
 
-  if (settings.bgUrl) {
+  if (settings.bgUrl && isValidBgUrl(settings.bgUrl)) {
     document.getElementById('bgLayer').style.backgroundImage = `url('${settings.bgUrl}')`;
+  } else if (settings.bgUrl) {
+    settings.bgUrl = '';
   }
 }
 
@@ -168,6 +181,10 @@ function bindSettingsEvents() {
   });
   document.getElementById('btnApplyBg').addEventListener('click', async () => {
     const url = document.getElementById('bgUrlInput').value.trim();
+    if (url && !isValidBgUrl(url)) {
+      await HellionDialog.alert(t('settings.bg_invalid_url'), { type: 'danger', title: t('settings.bg_invalid_url.title') });
+      return;
+    }
     settings.bgUrl = url;
     document.getElementById('bgLayer').style.backgroundImage = url ? `url('${url}')` : '';
     await saveSettings();
@@ -183,6 +200,7 @@ function bindSettingsEvents() {
     if (!file) return;
     const reader = new FileReader();
     reader.onload = async ev => {
+      if (!isValidBgUrl(ev.target.result)) return;
       settings.bgUrl = ev.target.result;
       document.getElementById('bgLayer').style.backgroundImage = `url('${ev.target.result}')`;
       await saveSettings();

src/js/state.js

@@ -33,15 +33,6 @@ function escHtml(str) {
     .replace(/"/g, '"');
 }
 
-function getFaviconUrl(url) {
-  try {
-    const u = new URL(url);
-    return `https://www.google.com/s2/favicons?domain=${u.hostname}&sz=16`;
-  } catch {
-    return '';
-  }
-}
-
 function getDefaultBoards() {
   return [
     {

src/js/timer.js

@@ -720,32 +720,23 @@ const Timer = {
       await this.open();
     }
 
-    // Close-Event abfangen
+    // Widget-Lifecycle-Events
-    const origClose = WidgetManager.close.bind(WidgetManager);
     const self = this;
-    const prevClose = WidgetManager.close;
+    WidgetManager.on('widget:close', (e) => {
-    WidgetManager.close = function(id) {
+      if (e.detail.id === self.WIDGET_ID) {
-      prevClose.call(WidgetManager, id);
-      if (id === self.WIDGET_ID) {
         self.onClose();
       }
-    };
+    });
 
-    // Minimize-Event abfangen
+    WidgetManager.on('widget:minimize', (e) => {
-    const prevMinimize = WidgetManager.minimize;
+      if (e.detail.id === self.WIDGET_ID) {
-    WidgetManager.minimize = async function(id) {
-      await prevMinimize.call(WidgetManager, id);
-      if (id === self.WIDGET_ID) {
         self._isOpen = false;
-        await self.save();
+        self.save();
       }
-    };
+    });
 
-    // Open-Event abfangen
+    WidgetManager.on('widget:open', (e) => {
-    const prevOpen = WidgetManager.openWidget;
+      if (e.detail.id === self.WIDGET_ID) {
-    WidgetManager.openWidget = async function(id) {
-      await prevOpen.call(WidgetManager, id);
-      if (id === self.WIDGET_ID) {
         self._isOpen = true;
         const body = WidgetManager.getBody(self.WIDGET_ID);
         if (body && body.children.length === 0) {
@@ -753,8 +744,8 @@ const Timer = {
         }
         const entry = WidgetManager._widgets.get(self.WIDGET_ID);
         if (entry) self._bindKeyboard(entry.el);
-        await self.save();
+        self.save();
-      }
+      }
-    };
+    });
   }
 };

src/js/widgets.js

@@ -9,6 +9,27 @@ const WidgetManager = {
   _topZ: 100,
   STORAGE_KEY: 'widgetStates',
 
+  /** @type {EventTarget} Internes Event-System fuer Widget-Lifecycle */
+  _emitter: new EventTarget(),
+
+  /**
+   * Event-Listener registrieren
+   * @param {string} event - z.B. 'widget:close', 'widget:minimize', 'widget:open'
+   * @param {Function} handler
+   */
+  on(event, handler) {
+    this._emitter.addEventListener(event, handler);
+  },
+
+  /**
+   * Event-Listener entfernen
+   * @param {string} event
+   * @param {Function} handler
+   */
+  off(event, handler) {
+    this._emitter.removeEventListener(event, handler);
+  },
+
   /**
    * Widget erstellen und in DOM einfuegen
    * @param {string} type - 'note'
@@ -31,7 +52,7 @@ const WidgetManager = {
     const el = this._buildDOM(state);
     document.body.appendChild(el);
 
-    this._widgets.set(id, { el, type, state });
+    this._widgets.set(id, { el, type, state, _minimizing: false });
     this._initDrag(el);
     this._initResize(el);
     this.bringToFront(id);
@@ -144,22 +165,47 @@ const WidgetManager = {
     const entry = this._widgets.get(id);
     if (!entry) return;
     entry.el.remove();
+    this._emitter.dispatchEvent(new CustomEvent('widget:close', { detail: { id } }));
     this._widgets.delete(id);
   },
 
   /**
-   * Widget minimieren (aus DOM verstecken, bleibt im Notebook)
+   * Widget minimieren (aus DOM verstecken, bleibt im Notebook).
+   * Nutzt transitionend statt setTimeout — _minimizing Flag verhindert Race Condition
+   * mit openWidget(). Fallback-Timer fuer prefers-reduced-motion / fehlende Transition.
    * @param {string} id
    */
   async minimize(id) {
     const entry = this._widgets.get(id);
     if (!entry) return;
     entry.state.open = false;
+    entry._minimizing = true;
     entry.el.classList.add('widget-minimized');
-    setTimeout(() => {
+
+    const MINIMIZE_FALLBACK_MS = 350;
+
+    function onEnd(e) {
+      if (e.target !== entry.el || e.propertyName !== 'opacity') return;
+      clearTimeout(fallbackTimer);
+      entry.el.removeEventListener('transitionend', onEnd);
+      if (entry._minimizing) {
         entry.el.style.display = 'none';
-    }, 250);
+      }
+      entry._minimizing = false;
+    }
+
+    entry.el.addEventListener('transitionend', onEnd);
+
+    const fallbackTimer = setTimeout(() => {
+      entry.el.removeEventListener('transitionend', onEnd);
+      if (entry._minimizing) {
+        entry.el.style.display = 'none';
+        entry._minimizing = false;
+      }
+    }, MINIMIZE_FALLBACK_MS);
+
     await this.save();
+    this._emitter.dispatchEvent(new CustomEvent('widget:minimize', { detail: { id } }));
   },
 
   /**
@@ -169,14 +215,15 @@ const WidgetManager = {
   async openWidget(id) {
     const entry = this._widgets.get(id);
     if (!entry) return;
+    entry._minimizing = false;
     entry.state.open = true;
     entry.el.style.display = 'flex';
-    // Naechster Frame fuer Animation
     requestAnimationFrame(() => {
       entry.el.classList.remove('widget-minimized');
     });
     this.bringToFront(id);
     await this.save();
+    this._emitter.dispatchEvent(new CustomEvent('widget:open', { detail: { id } }));
   },
 
   /**