Index: gc_lang/fr/webext/content_scripts/menu.js
==================================================================
--- gc_lang/fr/webext/content_scripts/menu.js
+++ gc_lang/fr/webext/content_scripts/menu.js
@@ -90,11 +90,11 @@
     }
 
     insertIntoPage () {
         this.bShadow = document.body.createShadowRoot || document.body.attachShadow;
         if (this.bShadow) {
-            this.xShadowHost = oGrammalecte.createNode("div", { id: "grammalecte_menu_main_button_shadow", style: "width:0; height:0;" });
+            this.xShadowHost = oGrammalecte.createNode("div", { id: "grammalecte_menu_main_button_shadow_host", style: "width:0; height:0;" });
             this.xShadowRoot = this.xShadowHost.attachShadow({ mode: "open" });
             oGrammalecte.createStyle("content_scripts/menu.css", null, this.xShadowRoot);
             this.xShadowRoot.appendChild(this.xButton);
             document.body.appendChild(this.xShadowHost);
         }

Index: gc_lang/fr/webext/content_scripts/message_box.js
==================================================================
--- gc_lang/fr/webext/content_scripts/message_box.js
+++ gc_lang/fr/webext/content_scripts/message_box.js
@@ -13,13 +13,13 @@
     constructor (sId, sTitle) {
         this.sId = sId;
 
         this.bShadow = document.body.createShadowRoot || document.body.attachShadow;
         if (this.bShadow) {
-            this.xShadowPanel = oGrammalecte.createNode("div", {id: this.sId+"_shadow", style: "width:0;height:0;"});
-            this.xShadow = this.xShadowPanel.attachShadow({mode: "open"});
-            this.xParent = this.xShadow;
+            this.xShadowHost = oGrammalecte.createNode("div", {id: this.sId+"_shadow", style: "width:0;height:0;"});
+            this.xShadowRoot = this.xShadowHost.attachShadow({mode: "open"});
+            this.xParent = this.xShadowRoot;
         } else {
             this.xParent = document;
         }
 
         this.xMessageBoxBar = oGrammalecte.createNode("div", {className: "grammalecte_message_box_bar"});
@@ -63,14 +63,14 @@
         return xButton;
     }
 
     insertIntoPage () {
         if (this.bShadow){
-            oGrammalecte.createStyle("content_scripts/panel.css", null, this.xShadow);
-            oGrammalecte.createStyle("content_scripts/message_box.css", null, this.xShadow);
-            this.xShadow.appendChild(this.xMessageBox);
-            document.body.appendChild(this.xShadowPanel);
+            oGrammalecte.createStyle("content_scripts/panel.css", null, this.xShadowRoot);
+            oGrammalecte.createStyle("content_scripts/message_box.css", null, this.xShadowRoot);
+            this.xShadowRoot.appendChild(this.xMessageBox);
+            document.body.appendChild(this.xShadowHost);
         } else {
             if (!document.getElementById("grammalecte_cssmsg")){
                 oGrammalecte.createStyle("content_scripts/panel.css", null, document.head);
                 oGrammalecte.createStyle("content_scripts/message_box.css", "grammalecte_cssmsg", document.head);
             }

Index: gc_lang/fr/webext/content_scripts/panel.js
==================================================================
--- gc_lang/fr/webext/content_scripts/panel.js
+++ gc_lang/fr/webext/content_scripts/panel.js
@@ -22,13 +22,13 @@
         this.bOpened = false;
         this.bWorking = false;
 
         this.bShadow = document.body.createShadowRoot || document.body.attachShadow;
         if (this.bShadow) {
-            this.xShadowPanel = oGrammalecte.createNode("div", {id: this.sId+"_shadow", style: "width:0;height:0;"});
-            this.xShadow = this.xShadowPanel.attachShadow({mode: "open"});
-            this.xParent = this.xShadow;
+            this.xShadowHost = oGrammalecte.createNode("div", {id: this.sId+"_shadow_host", style: "width:0;height:0;"});
+            this.xShadowRoot = this.xShadowHost.attachShadow({mode: "open"});
+            this.xParent = this.xShadowRoot;
         } else {
             this.xParent = document;
         }
 
         this.xPanelBar = oGrammalecte.createNode("div", {className: "grammalecte_panel_bar"});
@@ -122,17 +122,17 @@
         this.xPanelMessageBlock.appendChild(this.xPanelMessageActionButton);
     }
 
     insertIntoPage () {
         if (this.bShadow) {
-            oGrammalecte.createStyle("content_scripts/panel.css", null, this.xShadow);
-            oGrammalecte.createStyle("content_scripts/panel_gc.css", null, this.xShadow);
-            oGrammalecte.createStyle("content_scripts/panel_lxg.css", null, this.xShadow);
-            oGrammalecte.createStyle("content_scripts/panel_conj.css", null, this.xShadow);
-            oGrammalecte.createStyle("content_scripts/panel_tf.css", null, this.xShadow);
-            this.xShadow.appendChild(this.xPanel);
-            document.body.appendChild(this.xShadowPanel);
+            oGrammalecte.createStyle("content_scripts/panel.css", null, this.xShadowRoot);
+            oGrammalecte.createStyle("content_scripts/panel_gc.css", null, this.xShadowRoot);
+            oGrammalecte.createStyle("content_scripts/panel_lxg.css", null, this.xShadowRoot);
+            oGrammalecte.createStyle("content_scripts/panel_conj.css", null, this.xShadowRoot);
+            oGrammalecte.createStyle("content_scripts/panel_tf.css", null, this.xShadowRoot);
+            this.xShadowRoot.appendChild(this.xPanel);
+            document.body.appendChild(this.xShadowHost);
         } else {
             if (!document.getElementById("grammalecte_csspanel")) {
                 oGrammalecte.createStyle("content_scripts/panel.css", "grammalecte_csspanel", document.head);
                 oGrammalecte.createStyle("content_scripts/panel_gc.css", null, document.head);
                 oGrammalecte.createStyle("content_scripts/panel_lxg.css", null, document.head);