diff --git a/addons/web_editor/static/src/js/backend.js b/addons/web_editor/static/src/js/backend.js
index b160e6a7e97..964ececa06b 100644
--- a/addons/web_editor/static/src/js/backend.js
+++ b/addons/web_editor/static/src/js/backend.js
@@ -194,8 +194,6 @@ var FieldTextHtml = widget.extend({
     },
     start: function () {
         var self = this;
-        // Do not Forward port in >= 11.0
-        this.$formButtons = this.getParent().$buttons;
         this.callback = _.uniqueId('FieldTextHtml_');
         window.odoo[this.callback+"_editor"] = function (EditorBar) {
             setTimeout(function () {
@@ -293,13 +291,32 @@ var FieldTextHtml = widget.extend({
         src += "&datarecord="+ encodeURIComponent(JSON.stringify(datarecord));
         return src;
     },
+    _toggleFormButtons: function(enable) {
+        if (this.$formButtons) {
+            if (enable) {
+                this.$formButtons.find('button').removeClass('o_disabled').attr('disabled', false);
+            } else {
+                this.$formButtons.find('button').addClass('o_disabled').attr('disabled', true);
+            }
+        }
+    },
     initialize_content: function () {
         var self = this;
+
+        // Do not Forward port in >= 11.0
+        function getModalButtons() {
+            var $modal = self.getParent().getParent();
+            if ($modal && $modal.$footer) {
+                return $modal.$footer;
+            }
+        }
+
+        this.$formButtons = this.getParent().$buttons || getModalButtons();
         this.$el.closest('.modal-body').css('max-height', 'none');
         this.$iframe = this.$el.find('iframe');
         // deactivate any button to avoid saving a not ready iframe
         // Do not Forward port in >= 11.0
-        this.$formButtons.find('button').addClass('o_disabled').attr('disabled', true);
+        this._toggleFormButtons(false);
         this.document = null;
         this.$body = $();
         this.$content = $();
@@ -327,7 +344,7 @@ var FieldTextHtml = widget.extend({
         this.render_value();
         // reactivate all the buttons when the field's content (the iframe) is loaded
         // Do not Forward port in >= 11.0
-        this.$formButtons.find('button').removeClass('o_disabled').attr('disabled', false);
+        this._toggleFormButtons(true);
         setTimeout(function () {
             self.add_button();
             setTimeout(self.resize,0);
@@ -426,7 +443,7 @@ var FieldTextHtml = widget.extend({
     },
     destroy: function () {
         // Do not Forward port in >= 11.0
-        this.$formButtons.find('button').removeClass('o_disabled').attr('disabled', false);
+        this._toggleFormButtons(true);
         $(window).off('resize', this.resize);
         delete window.odoo[this.callback+"_editor"];
         delete window.odoo[this.callback+"_content"];