diff --git a/addons/web/static/src/js/views/form/form_renderer.js b/addons/web/static/src/js/views/form/form_renderer.js
index 25b72e4fb5a..75d3fcebf1d 100644
--- a/addons/web/static/src/js/views/form/form_renderer.js
+++ b/addons/web/static/src/js/views/form/form_renderer.js
@@ -336,12 +336,27 @@ var FormRenderer = BasicRenderer.extend({
      * @returns {jQueryElement}
      */
     _renderHeaderButton: function (node) {
+        var self = this;
         var $button = $('<button>')
                         .text(node.attrs.string)
                         .addClass('btn btn-sm btn-default');
         this._addOnClickAction($button, node);
         this._handleAttributes($button, node);
         this._registerModifiers(node, this.state, $button);
+
+        // Display tooltip
+        if (config.debug || node.attrs.help) {
+            $button.tooltip({
+                delay: { show: 1000, hide: 0 },
+                title: function () {
+                    return qweb.render('WidgetButton.tooltip', {
+                        debug: config.debug,
+                        state: self.state,
+                        node: node,
+                    });
+                },
+            });
+        }
         return $button;
     },
     /**
diff --git a/addons/web/static/src/xml/base_common.xml b/addons/web/static/src/xml/base_common.xml
index 618c3a1f7e2..3e0d6291dfd 100644
--- a/addons/web/static/src/xml/base_common.xml
+++ b/addons/web/static/src/xml/base_common.xml
@@ -93,36 +93,49 @@
         </li>
     </ul>
 </t>
-<t t-name="WidgetButton.tooltip" t-extend="WidgetLabel.tooltip">
-    <t t-jquery="div.oe_tooltip_string" t-operation="replace">
-        <div class="oe_tooltip_string" t-if="debug || widget.string">
-            <t t-if="debug">
-                Button
-                <t t-if="widget.string">: </t>
-                <t t-if="!widget.string"> (no string)</t>
-            </t>
-            <t t-esc="widget.string"/>
-        </div>
-    </t>
-    <t t-jquery="ul.oe_tooltip_technical" t-operation="append">
-        <li t-if="widget.node.attrs.special" data-item="special">
-            <span class="oe_tooltip_technical_title">Special:</span>
-            <t t-esc="widget.node.attrs.special"/>
+<t t-name="WidgetButton.tooltip">
+    <div class="oe_tooltip_string" t-if="debug || node.attrs.string">
+        <t t-if="debug">
+            Button
+            <t t-if="node.attrs.string">: </t>
+            <t t-if="!node.attrs.string"> (no string)</t>
+        </t>
+        <t t-esc="node.attrs.string"/>
+    </div>
+    <p t-if="node.attrs.help" class="oe_tooltip_help">
+        <t t-esc="node.attrs.help"/>
+    </p>
+    <ul t-if="debug" class="oe_tooltip_technical">
+        <li data-item="object">
+            <span class="oe_tooltip_technical_title">Object:</span>
+            <t t-esc="state.model"/>
         </li>
-        <t t-set="button_type" t-value="widget.node.attrs.type"/>
+        <li t-if="node.attrs.context" data-item="context">
+            <span class="oe_tooltip_technical_title">Context:</span>
+            <t t-esc="node.attrs.context || widget.field.context"/>
+        </li>
+        <li t-if="node.attrs.modifiers and node.attrs.modifiers != '{}'" data-item="modifiers">
+            <span class="oe_tooltip_technical_title">Modifiers:</span>
+            <t t-esc="node.attrs.modifiers"/>
+        </li>
+        <li t-if="node.attrs.special" data-item="special">
+            <span class="oe_tooltip_technical_title">Special:</span>
+            <t t-esc="node.attrs.special"/>
+        </li>
+        <t t-set="button_type" t-value="node.attrs.type"/>
         <li t-if="button_type" data-item="button_type">
             <span class="oe_tooltip_technical_title">Button Type:</span>
             <t t-esc="button_type"/>
         </li>
         <li t-if="button_type === 'object'" data-item="button_method">
             <span class="oe_tooltip_technical_title">Method:</span>
-            <t t-esc="widget.node.attrs.name"/>
+            <t t-esc="node.attrs.name"/>
         </li>
         <li t-if="button_type === 'action'" data-item="button_action">
             <span class="oe_tooltip_technical_title">Action ID:</span>
-            <t t-esc="widget.node.attrs.name"/>
+            <t t-esc="node.attrs.name"/>
         </li>
-    </t>
+    </ul>
 </t>
 
 <t t-name="SwitchCompanyMenu">
diff --git a/addons/web/static/tests/views/form_tests.js b/addons/web/static/tests/views/form_tests.js
index 86c32b4971d..a18edac23a3 100644
--- a/addons/web/static/tests/views/form_tests.js
+++ b/addons/web/static/tests/views/form_tests.js
@@ -2,6 +2,7 @@ odoo.define('web.form_tests', function (require) {
 "use strict";
 
 var concurrency = require('web.concurrency');
+var config = require('web.config');
 var core = require('web.core');
 var FormView = require('web.FormView');
 var testUtils = require('web.test_utils');
@@ -5388,5 +5389,33 @@ QUnit.module('Views', {
 
         form.destroy();
     });
+
+    QUnit.test('display tooltips for buttons', function (assert) {
+        assert.expect(1);
+
+        var initialDebugMode = config.debug;
+        config.debug = true;
+
+        var form = createView({
+            View: FormView,
+            model: 'partner',
+            data: this.data,
+            arch: '<form string="Partners">' +
+                    '<header>' +
+                        '<button name="some_method" class="oe_highlight" string="Button" type="object"/>' +
+                    '</header>' +
+                '</form>',
+        });
+
+        var $button = form.$('.o_form_statusbar button');
+        $button.tooltip('show', false);
+        $button.trigger($.Event('mouseenter'));
+
+        assert.strictEqual($('.tooltip .oe_tooltip_string').length, 1,
+            "should have rendered a tooltip");
+
+        config.debug = initialDebugMode;
+        form.destroy();
+    });
 });
 });