diff --git a/lib/internal/Magento/Framework/Data/Form/Element/Editablemultiselect.php b/lib/internal/Magento/Framework/Data/Form/Element/Editablemultiselect.php
index 8df9b4175675f..3c03155fb163e 100644
--- a/lib/internal/Magento/Framework/Data/Form/Element/Editablemultiselect.php
+++ b/lib/internal/Magento/Framework/Data/Form/Element/Editablemultiselect.php
@@ -13,8 +13,36 @@
  */
 namespace Magento\Framework\Data\Form\Element;
 
+use Magento\Framework\Escaper;
+
 class Editablemultiselect extends \Magento\Framework\Data\Form\Element\Multiselect
 {
+    /**
+     * @var \Magento\Framework\Serialize\Serializer\Json
+     */
+    private $serializer;
+
+    /**
+     * Editablemultiselect constructor.
+     * @param Factory $factoryElement
+     * @param CollectionFactory $factoryCollection
+     * @param Escaper $escaper
+     * @param array $data
+     * @param \Magento\Framework\Serialize\Serializer\Json|null $serializer
+     * @throws \RuntimeException
+     */
+    public function __construct(
+        Factory $factoryElement,
+        CollectionFactory $factoryCollection,
+        Escaper $escaper,
+        array $data = [],
+        \Magento\Framework\Serialize\Serializer\Json $serializer = null
+    ) {
+        parent::__construct($factoryElement, $factoryCollection, $escaper, $data);
+        $this->serializer = $serializer ?: \Magento\Framework\App\ObjectManager::getInstance()
+            ->get(\Magento\Framework\Serialize\Serializer\Json::class);
+    }
+
     /**
      * Name of the default JavaScript class that is used to make multiselect editable
      *
@@ -26,6 +54,7 @@ class Editablemultiselect extends \Magento\Framework\Data\Form\Element\Multisele
      * Retrieve HTML markup of the element
      *
      * @return string
+     * @throws \InvalidArgumentException
      */
     public function getElementHtml()
     {
@@ -41,7 +70,7 @@ public function getElementHtml()
             $elementJsClass = $this->getData('element_js_class');
         }
 
-        $selectConfigJson = \Zend_Json::encode($selectConfig);
+        $selectConfigJson = $this->serializer->serialize($selectConfig);
         $jsObjectName = $this->getJsObjectName();
 
         // TODO: TaxRateEditableMultiselect should be moved to a static .js module.
diff --git a/lib/internal/Magento/Framework/Data/Form/Element/Editor.php b/lib/internal/Magento/Framework/Data/Form/Element/Editor.php
index 50d553f5e06ab..6ed2d8293e61d 100644
--- a/lib/internal/Magento/Framework/Data/Form/Element/Editor.php
+++ b/lib/internal/Magento/Framework/Data/Form/Element/Editor.php
@@ -16,16 +16,25 @@
 class Editor extends Textarea
 {
     /**
+     * @var \Magento\Framework\Serialize\Serializer\Json
+     */
+    private $serializer;
+
+    /**
+     * Editor constructor.
      * @param Factory $factoryElement
      * @param CollectionFactory $factoryCollection
      * @param Escaper $escaper
      * @param array $data
+     * @param \Magento\Framework\Serialize\Serializer\Json|null $serializer
+     * @throws \RuntimeException
      */
     public function __construct(
         Factory $factoryElement,
         CollectionFactory $factoryCollection,
         Escaper $escaper,
-        $data = []
+        $data = [],
+        \Magento\Framework\Serialize\Serializer\Json $serializer = null
     ) {
         parent::__construct($factoryElement, $factoryCollection, $escaper, $data);
 
@@ -36,6 +45,8 @@ public function __construct(
             $this->setType('textarea');
             $this->setExtType('textarea');
         }
+        $this->serializer = $serializer ?: \Magento\Framework\App\ObjectManager::getInstance()
+            ->get(\Magento\Framework\Serialize\Serializer\Json::class);
     }
 
     /**
@@ -52,6 +63,21 @@ protected function getButtonTranslations()
         return $buttonTranslations;
     }
 
+    /**
+     * @return bool|string
+     * @throws \InvalidArgumentException
+     */
+    private function getJsonConfig()
+    {
+        if (is_object($this->getConfig()) && method_exists($this->getConfig(), 'toJson')) {
+            return $this->getConfig()->toJson();
+        } else {
+            return $this->serializer->serialize(
+                $this->getConfig()
+            );
+        }
+    }
+
     /**
      * @return string
      * @SuppressWarnings(PHPMD.ExcessiveMethodLength)
@@ -132,7 +158,7 @@ public function getElementHtml()
                 ], function(jQuery){' .
                 "\n" .
                 '  (function($) {$.mage.translate.add(' .
-                \Zend_Json::encode(
+                $this->serializer->serialize(
                     $this->getButtonTranslations()
                 ) .
                 ')})(jQuery);' .
@@ -141,9 +167,7 @@ public function getElementHtml()
                 ' = new tinyMceWysiwygSetup("' .
                 $this->getHtmlId() .
                 '", ' .
-                \Zend_Json::encode(
-                    $this->getConfig()
-                ) .
+                $this->getJsonConfig() .
                 ');' .
                 $forceLoad .
                 '
@@ -180,7 +204,7 @@ public function getElementHtml()
                     //<![CDATA[
                     require(["jquery", "mage/translate", "mage/adminhtml/wysiwyg/widget"], function(jQuery){
                         (function($) {
-                            $.mage.translate.add(' . \Zend_Json::encode($this->getButtonTranslations()) . ')
+                            $.mage.translate.add(' . $this->serializer->serialize($this->getButtonTranslations()) . ')
                         })(jQuery);
                     });
                     //]]>
diff --git a/lib/internal/Magento/Framework/Data/Test/Unit/Form/Element/EditorTest.php b/lib/internal/Magento/Framework/Data/Test/Unit/Form/Element/EditorTest.php
index 8f635d0cddfa1..be9fa81ddfc45 100644
--- a/lib/internal/Magento/Framework/Data/Test/Unit/Form/Element/EditorTest.php
+++ b/lib/internal/Magento/Framework/Data/Test/Unit/Form/Element/EditorTest.php
@@ -48,6 +48,11 @@ class EditorTest extends \PHPUnit_Framework_TestCase
      */
     protected $objectManager;
 
+    /**
+     * @var \PHPUnit_Framework_MockObject_MockObject
+     */
+    private $serializer;
+
     protected function setUp()
     {
         $this->objectManager = new \Magento\Framework\TestFramework\Unit\Helper\ObjectManager($this);
@@ -62,13 +67,16 @@ protected function setUp()
         $this->escaperMock = $this->getMock(\Magento\Framework\Escaper::class, [], [], '', false);
         $this->configMock = $this->getMock(\Magento\Framework\DataObject::class, ['getData'], [], '', false);
 
+        $this->serializer = $this->getMock(\Magento\Framework\Serialize\Serializer\Json::class, [], [], '', false);
+
         $this->model = $this->objectManager->getObject(
             \Magento\Framework\Data\Form\Element\Editor::class,
             [
                 'factoryElement' => $this->factoryMock,
                 'factoryCollection' => $this->collectionFactoryMock,
                 'escaper' => $this->escaperMock,
-                'data' => ['config' => $this->configMock]
+                'data' => ['config' => $this->configMock],
+                'serializer' => $this->serializer
             ]
         );
 
@@ -203,7 +211,14 @@ public function testGetConfig()
     public function testGetTranslatedString()
     {
         $this->configMock->expects($this->any())->method('getData')->withConsecutive(['enabled'])->willReturn(true);
+        $this->serializer->expects($this->any())
+            ->method('serialize')
+            ->willReturnCallback(function ($params) {
+                return json_encode($params);
+            }
+        );
         $html = $this->model->getElementHtml();
+
         $this->assertRegExp('/.*"Insert Image...":"Insert Image...".*/i', $html);
     }
 }