diff --git a/dist/urbm-2026.06.15.r014-x86_64-1.txz.sha256 b/dist/urbm-2026.06.15.r014-x86_64-1.txz.sha256
deleted file mode 100644
index a421a79..0000000
--- a/dist/urbm-2026.06.15.r014-x86_64-1.txz.sha256
+++ /dev/null
@@ -1 +0,0 @@
-2cb10896997b03d476b52275aebe077114c77b14ac796c7ba6e608f85b324536  urbm-2026.06.15.r014-x86_64-1.txz
diff --git a/dist/urbm-2026.06.15.r014-x86_64-1.txz b/dist/urbm-2026.06.15.r015-x86_64-1.txz
similarity index 55%
rename from dist/urbm-2026.06.15.r014-x86_64-1.txz
rename to dist/urbm-2026.06.15.r015-x86_64-1.txz
index 9f8c8f5..2fa76b9 100644
Binary files a/dist/urbm-2026.06.15.r014-x86_64-1.txz and b/dist/urbm-2026.06.15.r015-x86_64-1.txz differ
diff --git a/dist/urbm-2026.06.15.r015-x86_64-1.txz.sha256 b/dist/urbm-2026.06.15.r015-x86_64-1.txz.sha256
new file mode 100644
index 0000000..8c4cf29
--- /dev/null
+++ b/dist/urbm-2026.06.15.r015-x86_64-1.txz.sha256
@@ -0,0 +1 @@
+cdee29f4fd8fbd713fb78378f3c6531a46f3a1fb26c50e74f59fe6f1e437b76f  urbm-2026.06.15.r015-x86_64-1.txz
diff --git a/dist/urbm.plg b/dist/urbm.plg
index b584193..b0cf1dd 100644
--- a/dist/urbm.plg
+++ b/dist/urbm.plg
@@ -2,13 +2,17 @@
 <!DOCTYPE PLUGIN [
 <!ENTITY name "urbm">
 <!ENTITY author "Michael Roll">
-<!ENTITY version "2026.06.15.r014">
+<!ENTITY version "2026.06.15.r015">
 <!ENTITY pluginURL "https://git.casaderoll.de/michael/URBM/raw/branch/main/dist/urbm.plg">
 <!ENTITY packageURL "https://git.casaderoll.de/michael/URBM/raw/branch/main/dist/urbm-&version;-x86_64-1.txz">
-<!ENTITY packageSHA256 "2cb10896997b03d476b52275aebe077114c77b14ac796c7ba6e608f85b324536">
+<!ENTITY packageSHA256 "cdee29f4fd8fbd713fb78378f3c6531a46f3a1fb26c50e74f59fe6f1e437b76f">
 ]>
 <PLUGIN name="&name;" author="&author;" version="&version;" pluginURL="&pluginURL;" min="7.0.0" support="https://git.casaderoll.de/michael/URBM/issues" icon="urbm.png">
   <CHANGES>
+### 2026.06.15.r015
+- Generate compatible UUIDs on browsers and Unraid WebViews that do not provide `crypto.randomUUID()`.
+- Prefer cryptographic random bytes when available and retain a schema-compatible last-resort fallback.
+
 ### 2026.06.15.r014
 - Add a dedicated workflow for attaching and immediately testing an existing Restic repository without initialization.
 - Detect a missing Restic config at local and mounted paths and suggest direct child directories that contain a repository.
diff --git a/plugin/urbm.plg b/plugin/urbm.plg
index db98b5c..f9a4170 100644
--- a/plugin/urbm.plg
+++ b/plugin/urbm.plg
@@ -2,13 +2,17 @@
 <!DOCTYPE PLUGIN [
 <!ENTITY name "urbm">
 <!ENTITY author "Michael Roll">
-<!ENTITY version "2026.06.15.r014">
+<!ENTITY version "2026.06.15.r015">
 <!ENTITY pluginURL "https://git.casaderoll.de/michael/URBM/raw/branch/main/dist/urbm.plg">
 <!ENTITY packageURL "https://git.casaderoll.de/michael/URBM/raw/branch/main/dist/urbm-&version;-x86_64-1.txz">
 <!ENTITY packageSHA256 "REPLACE_DURING_RELEASE">
 ]>
 <PLUGIN name="&name;" author="&author;" version="&version;" pluginURL="&pluginURL;" min="7.0.0" support="https://git.casaderoll.de/michael/URBM/issues" icon="urbm.png">
   <CHANGES>
+### 2026.06.15.r015
+- Generate compatible UUIDs on browsers and Unraid WebViews that do not provide `crypto.randomUUID()`.
+- Prefer cryptographic random bytes when available and retain a schema-compatible last-resort fallback.
+
 ### 2026.06.15.r014
 - Add a dedicated workflow for attaching and immediately testing an existing Restic repository without initialization.
 - Detect a missing Restic config at local and mounted paths and suggest direct child directories that contain a repository.
diff --git a/webgui/URBM.page b/webgui/URBM.page
index 7b14923..273e461 100644
--- a/webgui/URBM.page
+++ b/webgui/URBM.page
@@ -9,12 +9,12 @@ Tag="URBM Unraid Restic Backup Manager backup snapshots restore"
 <?php
 $pluginRoot = '/plugins/urbm';
 ?>
-<link rel="stylesheet" href="<?= $pluginRoot ?>/assets/urbm.css?v=20260615r014">
+<link rel="stylesheet" href="<?= $pluginRoot ?>/assets/urbm.css?v=20260615r015">
 <div id="urbm-app" data-api="<?= $pluginRoot ?>/api.php">
   <header class="bu-header">
     <div class="bu-brand">
-      <img class="bu-logo" src="<?= $pluginRoot ?>/images/urbm.png?v=20260615r014" alt="URBM-Logo">
-      <div><h1>URBM <span class="bu-version">2026.06.15.r014</span></h1><p>Restic Backup Manager für Unraid</p></div>
+      <img class="bu-logo" src="<?= $pluginRoot ?>/images/urbm.png?v=20260615r015" alt="URBM-Logo">
+      <div><h1>URBM <span class="bu-version">2026.06.15.r015</span></h1><p>Restic Backup Manager für Unraid</p></div>
     </div>
     <div id="bu-health" class="bu-health" tabindex="0" data-tooltip="Zeigt, ob die URBM-Hintergrundkomponente erreichbar ist. Beispiel: 'Daemon online' bedeutet, dass Jobs gestartet werden können.">Verbindung wird hergestellt...</div>
   </header>
@@ -32,4 +32,4 @@ $pluginRoot = '/plugins/urbm';
   <div id="bu-tooltip" role="tooltip" aria-hidden="true"></div>
 </div>
 <script>window.URBM_CSRF = <?= json_encode($var['csrf_token'] ?? '') ?>;</script>
-<script src="<?= $pluginRoot ?>/assets/urbm-2026.06.15.r014.js"></script>
+<script src="<?= $pluginRoot ?>/assets/urbm-2026.06.15.r015.js"></script>
diff --git a/webgui/assets/urbm.js b/webgui/assets/urbm.js
index 8ddf228..d85c378 100644
--- a/webgui/assets/urbm.js
+++ b/webgui/assets/urbm.js
@@ -118,7 +118,21 @@
     toast.textContent = message; toast.className = `show${error ? ' error' : ''}`;
     clearTimeout(notify.timer); notify.timer = setTimeout(() => toast.className = '', 4500);
   };
-  const id = (prefix) => `${prefix}-${crypto.randomUUID()}`;
+  const uuid = () => {
+    if (window.crypto && typeof window.crypto.randomUUID === 'function') return window.crypto.randomUUID();
+    const bytes = new Uint8Array(16);
+    if (window.crypto && typeof window.crypto.getRandomValues === 'function') {
+      window.crypto.getRandomValues(bytes);
+    } else {
+      for (let i=0; i<bytes.length; i++) bytes[i]=Math.floor(Math.random()*256);
+      const time=Date.now();
+      for (let i=0; i<6; i++) bytes[i]^=(time/(2**(i*8)))&255;
+    }
+    bytes[6]=(bytes[6]&15)|64; bytes[8]=(bytes[8]&63)|128;
+    const hex=Array.from(bytes, value=>value.toString(16).padStart(2,'0')).join('');
+    return `${hex.slice(0,8)}-${hex.slice(8,12)}-${hex.slice(12,16)}-${hex.slice(16,20)}-${hex.slice(20)}`;
+  };
+  const id = (prefix) => `${prefix}-${uuid()}`;
   const repoName = (repoId) => state.config.repositories.find(r => r.id === repoId)?.name || repoId;
   const volatileLocation = (repo) => repo.type === 'local' && (/^\/tmp(?:\/|$)/.test(repo.location) || /^\/run(?:\/|$)/.test(repo.location));
   const tipAttr = (text) => text ? ` data-tooltip="${esc(text)}"` : '';