diff -NarU1 showdown-orig/Gruntfile.js showdown-mod/Gruntfile.js
--- showdown-orig/Gruntfile.js	2020-04-23 06:22:01.486676149 +0000
+++ showdown-mod/Gruntfile.js	2020-04-23 08:03:56.700219788 +0000
@@ -27,3 +27,2 @@
           'src/subParsers/*.js',
-          'src/subParsers/makeMarkdown/*.js',
           'src/loader.js'
diff -NarU1 showdown-orig/src/converter.js showdown-mod/src/converter.js
--- showdown-orig/src/converter.js	2020-04-23 06:22:01.496676150 +0000
+++ showdown-mod/src/converter.js	2020-04-23 08:20:11.056920123 +0000
@@ -84,5 +84,5 @@
 
-    if (options.extensions) {
+    /*if (options.extensions) {
       showdown.helper.forEach(options.extensions, _parseExtension);
-    }
+    }*/
   }
@@ -95,3 +95,3 @@
    */
-  function _parseExtension (ext, name) {
+  /*function _parseExtension (ext, name) {
 
@@ -159,3 +159,3 @@
    */
-  function legacyExtensionLoading (ext, name) {
+  /*function legacyExtensionLoading (ext, name) {
     if (typeof ext === 'function') {
@@ -351,3 +351,3 @@
    */
-  this.makeMarkdown = this.makeMd = function (src, HTMLParser) {
+  /*this.makeMarkdown = this.makeMd = function (src, HTMLParser) {
 
@@ -482,3 +482,3 @@
    */
-  this.addExtension = function (extension, name) {
+  /*this.addExtension = function (extension, name) {
     name = name || null;
@@ -491,3 +491,3 @@
    */
-  this.useExtension = function (extensionName) {
+  /*this.useExtension = function (extensionName) {
     _parseExtension(extensionName);
@@ -526,3 +526,3 @@
    */
-  this.removeExtension = function (extension) {
+  /*this.removeExtension = function (extension) {
     if (!showdown.helper.isArray(extension)) {
@@ -549,3 +549,3 @@
    */
-  this.getAllExtensions = function () {
+  /*this.getAllExtensions = function () {
     return {
diff -NarU1 showdown-orig/src/options.js showdown-mod/src/options.js
--- showdown-orig/src/options.js	2020-04-23 06:22:01.496676150 +0000
+++ showdown-mod/src/options.js	2020-04-23 08:24:29.176929018 +0000
@@ -118,3 +118,3 @@
     },
-    ghMentions: {
+    /*ghMentions: {
       defaultValue: false,
@@ -127,3 +127,3 @@
       type: 'string'
-    },
+    },*/
     encodeEmails: {
diff -NarU1 showdown-orig/src/showdown.js showdown-mod/src/showdown.js
--- showdown-orig/src/showdown.js	2020-04-23 06:22:01.496676150 +0000
+++ showdown-mod/src/showdown.js	2020-04-23 08:25:01.976930148 +0000
@@ -7,3 +7,2 @@
     parsers = {},
-    extensions = {},
     globalOptions = getDefaultOpts(true),
@@ -25,5 +24,4 @@
         ghCompatibleHeaderId:                 true,
-        ghMentions:                           true,
+        //ghMentions:                           true,
         backslashEscapesHTMLTags:             true,
-        emoji:                                true,
         splitAdjacentBlockquotes:             true
@@ -48,3 +46,3 @@
         requireSpaceBeforeHeadingText:        true,
-        ghMentions:                           false,
+        //ghMentions:                           false,
         encodeEmails:                         true
@@ -65,3 +63,2 @@
  */
-showdown.extensions = {};
 
@@ -193,3 +190,3 @@
  */
-showdown.extension = function (name, ext) {
+/*showdown.extension = function (name, ext) {
   'use strict';
@@ -235,3 +232,3 @@
  */
-showdown.getAllExtensions = function () {
+/*showdown.getAllExtensions = function () {
   'use strict';
@@ -244,3 +241,3 @@
  */
-showdown.removeExtension = function (name) {
+/*showdown.removeExtension = function (name) {
   'use strict';
@@ -252,3 +249,3 @@
  */
-showdown.resetExtensions = function () {
+/*showdown.resetExtensions = function () {
   'use strict';
@@ -263,3 +260,3 @@
  */
-function validate (extension, name) {
+/*function validate (extension, name) {
   'use strict';
@@ -370,3 +367,3 @@
  */
-showdown.validateExtension = function (ext) {
+/*showdown.validateExtension = function (ext) {
   'use strict';
@@ -380 +377,2 @@
 };
+*/
diff -NarU1 showdown-orig/src/subParsers/anchors.js showdown-mod/src/subParsers/anchors.js
--- showdown-orig/src/subParsers/anchors.js	2020-04-23 06:22:01.496676150 +0000
+++ showdown-mod/src/subParsers/anchors.js	2020-04-23 08:25:26.880264347 +0000
@@ -76,3 +76,3 @@
   // Lastly handle GithubMentions if option is enabled
-  if (options.ghMentions) {
+  /*if (options.ghMentions) {
     text = text.replace(/(^|\s)(\\)?(@([a-z\d]+(?:[a-z\d.-]+?[a-z\d]+)*))/gmi, function (wm, st, escape, mentions, username) {
@@ -93,3 +93,3 @@
     });
-  }
+  }*/
 
diff -NarU1 showdown-orig/src/subParsers/spanGamut.js showdown-mod/src/subParsers/spanGamut.js
--- showdown-orig/src/subParsers/spanGamut.js	2020-04-23 06:22:01.496676150 +0000
+++ showdown-mod/src/subParsers/spanGamut.js	2020-04-23 08:07:50.460227880 +0000
@@ -22,3 +22,2 @@
   text = showdown.subParser('simplifiedAutoLinks')(text, options, globals);
-  text = showdown.subParser('emoji')(text, options, globals);
   text = showdown.subParser('underline')(text, options, globals);
@@ -26,3 +25,2 @@
   text = showdown.subParser('strikethrough')(text, options, globals);
-  text = showdown.subParser('ellipsis')(text, options, globals);
 
diff -NarU1 showdown-orig/test/node/showdown.Converter.js showdown-mod/test/node/showdown.Converter.js
--- showdown-orig/test/node/showdown.Converter.js	2020-04-23 06:22:01.520009484 +0000
+++ showdown-mod/test/node/showdown.Converter.js	2020-04-23 08:14:58.086909318 +0000
@@ -29,3 +29,3 @@
 
-  describe('Converter.options extensions', function () {
+  /*describe('Converter.options extensions', function () {
     var runCount;
@@ -48,3 +48,3 @@
     });
-  });
+  });*/
 
@@ -115,3 +115,3 @@
 
-  describe('extension methods', function () {
+  /*describe('extension methods', function () {
     var extObjMock = {
@@ -145,3 +145,3 @@
     });
-  });
+  });*/
 
diff -NarU1 showdown-orig/test/node/showdown.js showdown-mod/test/node/showdown.js
--- showdown-orig/test/node/showdown.js	2020-04-23 06:22:01.523342816 +0000
+++ showdown-mod/test/node/showdown.js	2020-04-23 08:14:31.733575073 +0000
@@ -25,3 +25,3 @@
 
-describe('showdown.extension()', function () {
+/*describe('showdown.extension()', function () {
   'use strict';
@@ -110,3 +110,3 @@
   });
-});
+});*/
 
diff -NarU1 showdown-orig/test/node/testsuite.features.js showdown-mod/test/node/testsuite.features.js
--- showdown-orig/test/node/testsuite.features.js	2020-04-23 06:22:01.523342816 +0000
+++ showdown-mod/test/node/testsuite.features.js	2020-04-23 08:25:48.880265106 +0000
@@ -13,3 +13,2 @@
     rawPrefixHeaderIdSuite = bootstrap.getTestSuite('test/features/rawPrefixHeaderId/'),
-    emojisSuite = bootstrap.getTestSuite('test/features/emojis/'),
     underlineSuite = bootstrap.getTestSuite('test/features/underline/'),
@@ -69,4 +68,4 @@
         converter = new showdown.Converter({ghCompatibleHeaderId: true});
-      } else if (testsuite[i].name === 'ghMentions') {
-        converter = new showdown.Converter({ghMentions: true});
+      //} else if (testsuite[i].name === 'ghMentions') {
+      //  converter = new showdown.Converter({ghMentions: true});
       } else if (testsuite[i].name === 'disable-email-encoding') {
@@ -185,17 +184,2 @@
       it(suite[i].name.replace(/-/g, ' '), assertion(suite[i], converter));
-    }
-  });
-
-  /** test emojis support **/
-  describe('emojis support', function () {
-    var converter,
-        suite = emojisSuite;
-    for (var i = 0; i < suite.length; ++i) {
-      if (suite[i].name === 'simplifiedautolinks') {
-        converter = new showdown.Converter({emoji: true, simplifiedAutoLink: true});
-      } else {
-        converter = new showdown.Converter({emoji: true});
-      }
-
-      it(suite[i].name.replace(/-/g, ' '), assertion(suite[i], converter));
     }