diff --git a/core/src/plugins/gui.ajax/res/js/ui/reactjs/jsx/LeftNavigation.js b/core/src/plugins/gui.ajax/res/js/ui/reactjs/jsx/LeftNavigation.js
index cab039d880..53709980f5 100644
--- a/core/src/plugins/gui.ajax/res/js/ui/reactjs/jsx/LeftNavigation.js
+++ b/core/src/plugins/gui.ajax/res/js/ui/reactjs/jsx/LeftNavigation.js
@@ -253,7 +253,7 @@
                         ref={paneData.id}
                         title={title}
                         elementHeight={36}
-                        heightAutoWithMax={400}
+                        heightAutoWithMax={4000}
                         nodeClicked={this.props.nodeClicked}
                         presetDataModel={this.state.dataModel}
                         reloadOnServerMessage={paneData.options['reloadOnServerMessage']}
diff --git a/core/src/plugins/gui.ajax/res/themes/orbit/css/components/leftpanel.less b/core/src/plugins/gui.ajax/res/themes/orbit/css/components/leftpanel.less
index dfce2f3688..525f635264 100644
--- a/core/src/plugins/gui.ajax/res/themes/orbit/css/components/leftpanel.less
+++ b/core/src/plugins/gui.ajax/res/themes/orbit/css/components/leftpanel.less
@@ -135,7 +135,7 @@
   .simple-provider{
     position: relative;
     .infinite-parent-smooth-height > div{
-      -ms-overflow-y: auto !important;
+      overflow-y: auto !important;
     }
     .material-list-entry{
       .nav-list-entry();
diff --git a/core/src/plugins/gui.ajax/res/themes/orbit/css/pydio.css b/core/src/plugins/gui.ajax/res/themes/orbit/css/pydio.css
index f9c8c8ca9c..7039f6c6a1 100644
--- a/core/src/plugins/gui.ajax/res/themes/orbit/css/pydio.css
+++ b/core/src/plugins/gui.ajax/res/themes/orbit/css/pydio.css
@@ -4064,7 +4064,7 @@ div.menu.rootDirChooser span.rootDirTitle {
   -webkit-font-smoothing: antialiased;
   font-size: 13px;
   color: rgba(255, 255, 255, 0.92);
-  overflow-y: scroll;
+  overflow-y: auto;
   box-sizing: border-box;
   -webkit-transition: all 550ms cubic-bezier(0.23, 1, 0.32, 1) 0ms;
           transition: all 550ms cubic-bezier(0.23, 1, 0.32, 1) 0ms;
@@ -4187,7 +4187,7 @@ div.menu.rootDirChooser span.rootDirTitle {
   position: relative;
 }
 .left-panel .simple-provider .infinite-parent-smooth-height > div {
-  -ms-overflow-y: auto !important;
+  overflow-y: auto !important;
 }
 .left-panel .simple-provider .material-list-entry {
   padding: 6px 1px 6px 16px;