Still not fixed, not sure why.

despite having pushed that code with @torkelo.

public/app/plugins/panel/pluginlist/module.html

@@ -22,7 +22,7 @@
       </a>
     </div>
     <div class="pluginlist-item" ng-show="category.list.length === 0">
-      <a class="pluginlist-link pluginlist-link-{{plugin.state}}" href="http://grafana.net/plugins/">
+      <a class="pluginlist-link pluginlist-link-{{plugin.state}}" href="http://grafana.net.plugins/">
         <span class="pluginlist-none-installed">No additional panels installed. <span class="pluginlist-emphasis">Browse Grafana.net</span></span>
       </a>
     </div>