diff --git a/app/views/archives/_viewer.html.erb b/app/views/archives/_viewer.html.erb
index 851d742..ad8d1ae 100644
--- a/app/views/archives/_viewer.html.erb
+++ b/app/views/archives/_viewer.html.erb
@@ -268,16 +268,16 @@ See https://github.com/adobe-type-tools/cmap-resources
           </div>
         </div>
 
-        <menu type="context" id="viewerContextMenu">
-          <menuitem id="contextFirstPage" label="First Page"
-                    data-l10n-id="first_page"></menuitem>
-          <menuitem id="contextLastPage" label="Last Page"
-                    data-l10n-id="last_page"></menuitem>
-          <menuitem id="contextPageRotateCw" label="Rotate Clockwise"
-                    data-l10n-id="page_rotate_cw"></menuitem>
-          <menuitem id="contextPageRotateCcw" label="Rotate Counter-Clockwise"
-                    data-l10n-id="page_rotate_ccw"></menuitem>
-        </menu>
+        <ul type="context" id="viewerContextMenu" style="display: none;">
+          <li id="contextFirstPage" label="First Page"
+                    data-l10n-id="first_page">First Page</li>
+          <li id="contextLastPage" label="Last Page"
+                    data-l10n-id="last_page">Last Page</li>
+          <li id="contextPageRotateCw" label="Rotate Clockwise"
+                    data-l10n-id="page_rotate_cw">Rotate Clockwise</li>
+          <li id="contextPageRotateCcw" label="Rotate Counter-Clockwise"
+                    data-l10n-id="page_rotate_ccw">Rotate Counter-Clockwise</li>
+        </ul>
 
         <div id="viewerContainer" tabindex="0">
           <div id="viewer" class="pdfViewer"></div>