diff --git a/filter/mathjaxloader/db/upgrade.php b/filter/mathjaxloader/db/upgrade.php
index acab499701a..bf7fedd7346 100644
--- a/filter/mathjaxloader/db/upgrade.php
+++ b/filter/mathjaxloader/db/upgrade.php
@@ -47,5 +47,25 @@ function xmldb_filter_mathjaxloader_upgrade($oldversion) {
     // Moodle v2.8.0 release upgrade line.
     // Put any upgrade step following this.
 
+    // Moodle v2.9.0 release upgrade line.
+    // Put any upgrade step following this.
+
+    if ($oldversion < 2015021200) {
+
+        $httpurl = get_config('filter_mathjaxloader', 'httpurl');
+        // Don't change the config if it has been manually changed to something besides the default setting value.
+        if ($httpurl === "http://cdn.mathjax.org/mathjax/2.3-latest/MathJax.js") {
+            set_config('httpurl', 'http://cdn.mathjax.org/mathjax/2.5-latest/MathJax.js', 'filter_mathjaxloader');
+        }
+
+        $httpsurl = get_config('filter_mathjaxloader', 'httpsurl');
+        // Don't change the config if it has been manually changed to something besides the default setting value.
+        if ($httpsurl === "https://cdn.mathjax.org/mathjax/2.3-latest/MathJax.js") {
+            set_config('httpsurl', 'https://cdn.mathjax.org/mathjax/2.5-latest/MathJax.js', 'filter_mathjaxloader');
+        }
+
+        upgrade_plugin_savepoint(true, 2015021200, 'filter', 'mathjaxloader');
+    }
+
     return true;
 }
diff --git a/filter/mathjaxloader/settings.php b/filter/mathjaxloader/settings.php
index 978587ce798..1ca76700f9c 100644
--- a/filter/mathjaxloader/settings.php
+++ b/filter/mathjaxloader/settings.php
@@ -33,14 +33,14 @@ if ($ADMIN->fulltree) {
     $item = new admin_setting_configtext('filter_mathjaxloader/httpurl',
                                          new lang_string('httpurl', 'filter_mathjaxloader'),
                                          new lang_string('httpurl_help', 'filter_mathjaxloader'),
-                                         'http://cdn.mathjax.org/mathjax/2.3-latest/MathJax.js',
+                                         'http://cdn.mathjax.org/mathjax/2.5-latest/MathJax.js',
                                          PARAM_RAW);
     $settings->add($item);
 
     $item = new admin_setting_configtext('filter_mathjaxloader/httpsurl',
                                          new lang_string('httpsurl', 'filter_mathjaxloader'),
                                          new lang_string('httpsurl_help', 'filter_mathjaxloader'),
-                                         'https://cdn.mathjax.org/mathjax/2.3-latest/MathJax.js',
+                                         'https://cdn.mathjax.org/mathjax/2.5-latest/MathJax.js',
                                          PARAM_RAW);
     $settings->add($item);
 
diff --git a/filter/mathjaxloader/upgrade.txt b/filter/mathjaxloader/upgrade.txt
index ca95016bc09..87db75e9cc3 100644
--- a/filter/mathjaxloader/upgrade.txt
+++ b/filter/mathjaxloader/upgrade.txt
@@ -1,3 +1,14 @@
+=== 2.9 ===
+
+* Update to the latest version of MathJax setting "httpurl" and "httpsurl" to:
+  http://cdn.mathjax.org/mathjax/2.5-latest/MathJax.js
+
+  and
+
+  https://cdn.mathjax.org/mathjax/2.5-latest/MathJax.js
+
+=== Before 2.9 ===
+
 Setting "httpsurl" default changed from:
 
 https://c328740.ssl.cf1.rackcdn.com/mathjax/2.3-latest/MathJax.js
diff --git a/filter/mathjaxloader/version.php b/filter/mathjaxloader/version.php
index b825781c717..21e2f191385 100644
--- a/filter/mathjaxloader/version.php
+++ b/filter/mathjaxloader/version.php
@@ -24,6 +24,6 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version  = 2014111000;
+$plugin->version  = 2015021200;
 $plugin->requires = 2014110400;  // Requires this Moodle version
 $plugin->component= 'filter_mathjaxloader';
diff --git a/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader-debug.js b/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader-debug.js
index 11b4a9de0fa..83b6d8d68c6 100644
--- a/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader-debug.js
+++ b/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader-debug.js
@@ -113,14 +113,20 @@ M.filter_mathjaxloader = M.filter_mathjaxloader || {
     contentUpdated: function(event) {
         var self = this;
         Y.use('mathjax', function() {
+            if (typeof window.MathJax === "undefined") {
+                return;
+            }
+            var processdelay = window.MathJax.Hub.processSectionDelay;
+            // Set the process section delay to 0 when updating the formula.
+            window.MathJax.Hub.processSectionDelay = 0;
             self._setLocale();
             event.nodes.each(function (node) {
                 node.all('.filter_mathjaxloader_equation').each(function(node) {
-                    if (typeof window.MathJax !== "undefined") {
-                        window.MathJax.Hub.Queue(["Typeset", window.MathJax.Hub, node.getDOMNode()]);
-                    }
+                    window.MathJax.Hub.Queue(["Typeset", window.MathJax.Hub, node.getDOMNode()]);
                 });
             });
+            // Set the delay back to normal after processing.
+            window.MathJax.Hub.processSectionDelay = processdelay;
         });
     }
 };
diff --git a/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader-min.js b/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader-min.js
index ccebf0c665d..809018ecf67 100644
--- a/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader-min.js
+++ b/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader-min.js
@@ -1 +1 @@
-YUI.add("moodle-filter_mathjaxloader-loader",function(e,t){M.filter_mathjaxloader=M.filter_mathjaxloader||{_lang:"",_configured:!1,configure:function(t){var n=document.createElement("script");n.type="text/x-mathjax-config",n[window.opera?"innerHTML":"text"]=t.mathjaxconfig,document.getElementsByTagName("head")[0].appendChild(n),this._lang=t.lang,e.on(M.core.event.FILTER_CONTENT_UPDATED,this.contentUpdated,this)},_setLocale:function(){if(!this._configured){var e=this._lang;typeof window.MathJax!="undefined"&&(window.MathJax.Hub.Queue(function(){window.MathJax.Localization.setLocale(e)}),window.MathJax.Hub.Configured(),this._configured=!0)}},typeset:function(){if(!this._configured){var t=this;e.use("mathjax",function(){t._setLocale(),e.all(".filter_mathjaxloader_equation").each(function(e){typeof window.MathJax!="undefined"&&window.MathJax.Hub.Queue(["Typeset",window.MathJax.Hub,e.getDOMNode()])})})}},contentUpdated:function(t){var n=this;e.use("mathjax",function(){n._setLocale(),t.nodes.each(function(e){e.all(".filter_mathjaxloader_equation").each(function(e){typeof window.MathJax!="undefined"&&window.MathJax.Hub.Queue(["Typeset",window.MathJax.Hub,e.getDOMNode()])})})})}}},"@VERSION@",{requires:["moodle-core-event"]});
+YUI.add("moodle-filter_mathjaxloader-loader",function(e,t){M.filter_mathjaxloader=M.filter_mathjaxloader||{_lang:"",_configured:!1,configure:function(t){var n=document.createElement("script");n.type="text/x-mathjax-config",n[window.opera?"innerHTML":"text"]=t.mathjaxconfig,document.getElementsByTagName("head")[0].appendChild(n),this._lang=t.lang,e.on(M.core.event.FILTER_CONTENT_UPDATED,this.contentUpdated,this)},_setLocale:function(){if(!this._configured){var e=this._lang;typeof window.MathJax!="undefined"&&(window.MathJax.Hub.Queue(function(){window.MathJax.Localization.setLocale(e)}),window.MathJax.Hub.Configured(),this._configured=!0)}},typeset:function(){if(!this._configured){var t=this;e.use("mathjax",function(){t._setLocale(),e.all(".filter_mathjaxloader_equation").each(function(e){typeof window.MathJax!="undefined"&&window.MathJax.Hub.Queue(["Typeset",window.MathJax.Hub,e.getDOMNode()])})})}},contentUpdated:function(t){var n=this;e.use("mathjax",function(){if(typeof window.MathJax=="undefined")return;var e=window.MathJax.Hub.processSectionDelay;window.MathJax.Hub.processSectionDelay=0,n._setLocale(),t.nodes.each(function(e){e.all(".filter_mathjaxloader_equation").each(function(e){window.MathJax.Hub.Queue(["Typeset",window.MathJax.Hub,e.getDOMNode()])})}),window.MathJax.Hub.processSectionDelay=e})}}},"@VERSION@",{requires:["moodle-core-event"]});
diff --git a/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader.js b/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader.js
index 11b4a9de0fa..83b6d8d68c6 100644
--- a/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader.js
+++ b/filter/mathjaxloader/yui/build/moodle-filter_mathjaxloader-loader/moodle-filter_mathjaxloader-loader.js
@@ -113,14 +113,20 @@ M.filter_mathjaxloader = M.filter_mathjaxloader || {
     contentUpdated: function(event) {
         var self = this;
         Y.use('mathjax', function() {
+            if (typeof window.MathJax === "undefined") {
+                return;
+            }
+            var processdelay = window.MathJax.Hub.processSectionDelay;
+            // Set the process section delay to 0 when updating the formula.
+            window.MathJax.Hub.processSectionDelay = 0;
             self._setLocale();
             event.nodes.each(function (node) {
                 node.all('.filter_mathjaxloader_equation').each(function(node) {
-                    if (typeof window.MathJax !== "undefined") {
-                        window.MathJax.Hub.Queue(["Typeset", window.MathJax.Hub, node.getDOMNode()]);
-                    }
+                    window.MathJax.Hub.Queue(["Typeset", window.MathJax.Hub, node.getDOMNode()]);
                 });
             });
+            // Set the delay back to normal after processing.
+            window.MathJax.Hub.processSectionDelay = processdelay;
         });
     }
 };
diff --git a/filter/mathjaxloader/yui/src/loader/js/loader.js b/filter/mathjaxloader/yui/src/loader/js/loader.js
index aad01b32f58..835a864fdcc 100644
--- a/filter/mathjaxloader/yui/src/loader/js/loader.js
+++ b/filter/mathjaxloader/yui/src/loader/js/loader.js
@@ -111,14 +111,20 @@ M.filter_mathjaxloader = M.filter_mathjaxloader || {
     contentUpdated: function(event) {
         var self = this;
         Y.use('mathjax', function() {
+            if (typeof window.MathJax === "undefined") {
+                return;
+            }
+            var processdelay = window.MathJax.Hub.processSectionDelay;
+            // Set the process section delay to 0 when updating the formula.
+            window.MathJax.Hub.processSectionDelay = 0;
             self._setLocale();
             event.nodes.each(function (node) {
                 node.all('.filter_mathjaxloader_equation').each(function(node) {
-                    if (typeof window.MathJax !== "undefined") {
-                        window.MathJax.Hub.Queue(["Typeset", window.MathJax.Hub, node.getDOMNode()]);
-                    }
+                    window.MathJax.Hub.Queue(["Typeset", window.MathJax.Hub, node.getDOMNode()]);
                 });
             });
+            // Set the delay back to normal after processing.
+            window.MathJax.Hub.processSectionDelay = processdelay;
         });
     }
 };