diff --git a/src/wp-admin/css/install.css b/src/wp-admin/css/install.css
index 5667deb4a8..66228912a8 100644
--- a/src/wp-admin/css/install.css
+++ b/src/wp-admin/css/install.css
@@ -152,6 +152,8 @@ submit {
 }
 
 .form-table input[type=text],
+.form-table input[type=email],
+.form-table input[type=url],
 .form-table input[type=password] {
 	width: 206px;
 }
@@ -295,6 +297,8 @@ body.rtl,
 	}
 
 	.form-table td input[type="text"],
+	.form-table td input[type="email"],
+	.form-table td input[type="url"],
 	.form-table td input[type="password"],
 	.form-table td select,
 	.form-table td textarea,
diff --git a/src/wp-admin/install.php b/src/wp-admin/install.php
index 8c958953fc..732c979d64 100644
--- a/src/wp-admin/install.php
+++ b/src/wp-admin/install.php
@@ -98,7 +98,7 @@ function display_setup_form( $error = null ) {
 ?>
 <p class="message"><?php echo $error; ?></p>
 <?php } ?>
-<form id="setup" method="post" action="install.php?step=2">
+<form id="setup" method="post" action="install.php?step=2" novalidate="novalidate">
 	<table class="form-table">
 		<tr>
 			<th scope="row"><label for="weblog_title"><?php _e( 'Site Title' ); ?></label></th>
@@ -134,7 +134,7 @@ function display_setup_form( $error = null ) {
 		<?php endif; ?>
 		<tr>
 			<th scope="row"><label for="admin_email"><?php _e( 'Your E-mail' ); ?></label></th>
-			<td><input name="admin_email" type="text" id="admin_email" size="25" value="<?php echo esc_attr( $admin_email ); ?>" />
+			<td><input name="admin_email" type="email" id="admin_email" size="25" value="<?php echo esc_attr( $admin_email ); ?>" />
 			<p><?php _e( 'Double-check your email address before continuing.' ); ?></p></td>
 		</tr>
 		<tr>
diff --git a/src/wp-admin/network/settings.php b/src/wp-admin/network/settings.php
index 3497ddb007..663220ccf7 100644
--- a/src/wp-admin/network/settings.php
+++ b/src/wp-admin/network/settings.php
@@ -85,7 +85,7 @@ if ( isset( $_GET['updated'] ) ) {
 
 <div class="wrap">
 	<h2><?php echo esc_html( $title ); ?></h2>
-	<form method="post" action="settings.php">
+	<form method="post" action="settings.php" novalidate="novalidate">
 		<?php wp_nonce_field( 'siteoptions' ); ?>
 		<h3><?php _e( 'Operational Settings' ); ?></h3>
 		<table class="form-table">
@@ -99,7 +99,7 @@ if ( isset( $_GET['updated'] ) ) {
 			<tr>
 				<th scope="row"><label for="admin_email"><?php _e( 'Network Admin Email' ) ?></label></th>
 				<td>
-					<input name="admin_email" type="text" id="admin_email" class="regular-text" value="<?php echo esc_attr( get_site_option('admin_email') ) ?>" />
+					<input name="admin_email" type="email" id="admin_email" class="regular-text" value="<?php echo esc_attr( get_site_option( 'admin_email' ) ) ?>" />
 					<p class="description">
 						<?php _e( 'This email address will receive notifications. Registration and support emails will also come from this address.' ); ?>
 					</p>	
diff --git a/src/wp-admin/network/site-new.php b/src/wp-admin/network/site-new.php
index 6a6cac993f..d8024400d5 100644
--- a/src/wp-admin/network/site-new.php
+++ b/src/wp-admin/network/site-new.php
@@ -119,7 +119,7 @@ if ( ! empty( $messages ) ) {
 	foreach ( $messages as $msg )
 		echo '<div id="message" class="updated"><p>' . $msg . '</p></div>';
 } ?>
-<form method="post" action="<?php echo network_admin_url('site-new.php?action=add-site'); ?>">
+<form method="post" action="<?php echo network_admin_url( 'site-new.php?action=add-site' ); ?>" novalidate="novalidate">
 <?php wp_nonce_field( 'add-blog', '_wpnonce_add-blog' ) ?>
 	<table class="form-table">
 		<tr class="form-field form-required">
@@ -140,7 +140,7 @@ if ( ! empty( $messages ) ) {
 		</tr>
 		<tr class="form-field form-required">
 			<th scope="row"><?php _e( 'Admin Email' ) ?></th>
-			<td><input name="blog[email]" type="text" class="regular-text wp-suggest-user" data-autocomplete-type="search" data-autocomplete-field="user_email" title="<?php esc_attr_e( 'Email' ) ?>"/></td>
+			<td><input name="blog[email]" type="email" class="regular-text wp-suggest-user" data-autocomplete-type="search" data-autocomplete-field="user_email" title="<?php esc_attr_e( 'Email' ) ?>"/></td>
 		</tr>
 		<tr class="form-field">
 			<td colspan="2"><?php _e( 'A new user will be created if the above email address is not in the database.' ) ?><br /><?php _e( 'The username and password will be mailed to this email address.' ) ?></td>
diff --git a/src/wp-admin/options-general.php b/src/wp-admin/options-general.php
index 96ad5e1840..c2f88a2ebe 100644
--- a/src/wp-admin/options-general.php
+++ b/src/wp-admin/options-general.php
@@ -86,7 +86,7 @@ include( ABSPATH . 'wp-admin/admin-header.php' );
 <div class="wrap">
 <h2><?php echo esc_html( $title ); ?></h2>
 
-<form method="post" action="options.php">
+<form method="post" action="options.php" novalidate="novalidate">
 <?php settings_fields('general'); ?>
 
 <table class="form-table">
@@ -102,16 +102,16 @@ include( ABSPATH . 'wp-admin/admin-header.php' );
 <?php if ( !is_multisite() ) { ?>
 <tr>
 <th scope="row"><label for="siteurl"><?php _e('WordPress Address (URL)') ?></label></th>
-<td><input name="siteurl" type="text" id="siteurl" value="<?php form_option('siteurl'); ?>"<?php disabled( defined( 'WP_SITEURL' ) ); ?> class="regular-text code<?php if ( defined( 'WP_SITEURL' ) ) echo ' disabled' ?>" /></td>
+<td><input name="siteurl" type="url" id="siteurl" value="<?php form_option( 'siteurl' ); ?>"<?php disabled( defined( 'WP_SITEURL' ) ); ?> class="regular-text code<?php if ( defined( 'WP_SITEURL' ) ) echo ' disabled' ?>" /></td>
 </tr>
 <tr>
 <th scope="row"><label for="home"><?php _e('Site Address (URL)') ?></label></th>
-<td><input name="home" type="text" id="home" value="<?php form_option('home'); ?>"<?php disabled( defined( 'WP_HOME' ) ); ?> class="regular-text code<?php if ( defined( 'WP_HOME' ) ) echo ' disabled' ?>" />
+<td><input name="home" type="url" id="home" value="<?php form_option( 'home' ); ?>"<?php disabled( defined( 'WP_HOME' ) ); ?> class="regular-text code<?php if ( defined( 'WP_HOME' ) ) echo ' disabled' ?>" />
 <p class="description"><?php _e('Enter the address here if you want your site homepage <a href="http://codex.wordpress.org/Giving_WordPress_Its_Own_Directory">to be different from the directory</a> you installed WordPress.'); ?></p></td>
 </tr>
 <tr>
 <th scope="row"><label for="admin_email"><?php _e('E-mail Address') ?> </label></th>
-<td><input name="admin_email" type="text" id="admin_email" value="<?php form_option('admin_email'); ?>" class="regular-text ltr" />
+<td><input name="admin_email" type="email" id="admin_email" value="<?php form_option( 'admin_email' ); ?>" class="regular-text ltr" />
 <p class="description"><?php _e('This address is used for admin purposes, like new user notification.') ?></p></td>
 </tr>
 <tr>
@@ -130,7 +130,7 @@ include( ABSPATH . 'wp-admin/admin-header.php' );
 <?php } else { ?>
 <tr>
 <th scope="row"><label for="new_admin_email"><?php _e('E-mail Address') ?> </label></th>
-<td><input name="new_admin_email" type="text" id="new_admin_email" value="<?php form_option('admin_email'); ?>" class="regular-text ltr" />
+<td><input name="new_admin_email" type="email" id="new_admin_email" value="<?php form_option( 'admin_email' ); ?>" class="regular-text ltr" />
 <p class="description"><?php _e('This address is used for admin purposes. If you change this we will send you an e-mail at your new address to confirm it. <strong>The new address will not become active until confirmed.</strong>') ?></p>
 <?php
 $new_admin_email = get_option( 'new_admin_email' );
diff --git a/src/wp-admin/user-edit.php b/src/wp-admin/user-edit.php
index cd548d1b58..fd3db18802 100644
--- a/src/wp-admin/user-edit.php
+++ b/src/wp-admin/user-edit.php
@@ -228,7 +228,7 @@ if ( ! IS_PROFILE_PAGE ) {
  * @since 3.0.0
  */
 ?>
-<form id="your-profile" action="<?php echo esc_url( self_admin_url( IS_PROFILE_PAGE ? 'profile.php' : 'user-edit.php' ) ); ?>" method="post"<?php do_action( 'user_edit_form_tag' ); ?>>
+<form id="your-profile" action="<?php echo esc_url( self_admin_url( IS_PROFILE_PAGE ? 'profile.php' : 'user-edit.php' ) ); ?>" method="post" novalidate="novalidate"<?php do_action( 'user_edit_form_tag' ); ?>>
 <?php wp_nonce_field('update-user_' . $user_id) ?>
 <?php if ( $wp_http_referer ) : ?>
 	<input type="hidden" name="wp_http_referer" value="<?php echo esc_url($wp_http_referer); ?>" />
@@ -401,7 +401,7 @@ if ( is_multisite() && is_network_admin() && ! IS_PROFILE_PAGE && current_user_c
 <table class="form-table">
 <tr>
 	<th><label for="email"><?php _e('E-mail'); ?> <span class="description"><?php _e('(required)'); ?></span></label></th>
-	<td><input type="text" name="email" id="email" value="<?php echo esc_attr($profileuser->user_email) ?>" class="regular-text ltr" />
+	<td><input type="email" name="email" id="email" value="<?php echo esc_attr( $profileuser->user_email ) ?>" class="regular-text ltr" />
 	<?php
 	$new_email = get_option( $current_user->ID . '_new_email' );
 	if ( $new_email && $new_email['newemail'] != $current_user->user_email && $profileuser->ID == $current_user->ID ) : ?>
@@ -414,7 +414,7 @@ if ( is_multisite() && is_network_admin() && ! IS_PROFILE_PAGE && current_user_c
 
 <tr>
 	<th><label for="url"><?php _e('Website') ?></label></th>
-	<td><input type="text" name="url" id="url" value="<?php echo esc_attr($profileuser->user_url) ?>" class="regular-text code" /></td>
+	<td><input type="url" name="url" id="url" value="<?php echo esc_attr( $profileuser->user_url ) ?>" class="regular-text code" /></td>
 </tr>
 
 <?php
diff --git a/src/wp-admin/user-new.php b/src/wp-admin/user-new.php
index 6ed7ab6228..eda8db5fe1 100644
--- a/src/wp-admin/user-new.php
+++ b/src/wp-admin/user-new.php
@@ -274,9 +274,11 @@ if ( is_multisite() ) {
 	if ( !is_super_admin() ) {
 		echo '<p>' . __( 'Enter the email address of an existing user on this network to invite them to this site. That person will be sent an email asking them to confirm the invite.' ) . '</p>';
 		$label = __('E-mail');
+		$type  = 'email';
 	} else {
 		echo '<p>' . __( 'Enter the email address or username of an existing user on this network to invite them to this site. That person will be sent an email asking them to confirm the invite.' ) . '</p>';
 		$label = __('E-mail or Username');
+		$type  = 'text';
 	}
 ?>
 <?php
@@ -286,14 +288,14 @@ if ( is_multisite() ) {
  * @since 3.0.0
  */
 ?>
-<form action="" method="post" name="adduser" id="adduser" class="validate"<?php do_action( 'user_new_form_tag' );?>>
+<form action="" method="post" name="adduser" id="adduser" class="validate" novalidate="novalidate"<?php do_action( 'user_new_form_tag' );?>>
 <input name="action" type="hidden" value="adduser" />
 <?php wp_nonce_field( 'add-user', '_wpnonce_add-user' ) ?>
 
 <table class="form-table">
 	<tr class="form-field form-required">
 		<th scope="row"><label for="adduser-email"><?php echo $label; ?></label></th>
-		<td><input name="email" type="text" id="adduser-email" class="wp-suggest-user" value="" /></td>
+		<td><input name="email" type="<?php echo $type; ?>" id="adduser-email" class="wp-suggest-user" value="" /></td>
 	</tr>
 	<tr class="form-field">
 		<th scope="row"><label for="adduser-role"><?php _e('Role'); ?></label></th>
@@ -334,7 +336,7 @@ if ( current_user_can( 'create_users') ) {
 ?>
 <p><?php _e('Create a brand new user and add them to this site.'); ?></p>
 <?php /** This action is documented in wp-admin/user-new.php */ ?>
-<form action="" method="post" name="createuser" id="createuser" class="validate"<?php do_action( 'user_new_form_tag' );?>>
+<form action="" method="post" name="createuser" id="createuser" class="validate" novalidate="novalidate"<?php do_action( 'user_new_form_tag' );?>>
 <input name="action" type="hidden" value="createuser" />
 <?php wp_nonce_field( 'create-user', '_wpnonce_create-user' ); ?>
 <?php
@@ -358,7 +360,7 @@ $new_user_ignore_pass = $creating && isset( $_POST['noconfirmation'] ) ? wp_unsl
 	</tr>
 	<tr class="form-field form-required">
 		<th scope="row"><label for="email"><?php _e('E-mail'); ?> <span class="description"><?php _e('(required)'); ?></span></label></th>
-		<td><input name="email" type="text" id="email" value="<?php echo esc_attr($new_user_email); ?>" /></td>
+		<td><input name="email" type="email" id="email" value="<?php echo esc_attr( $new_user_email ); ?>" /></td>
 	</tr>
 <?php if ( !is_multisite() ) { ?>
 	<tr class="form-field">
@@ -371,7 +373,7 @@ $new_user_ignore_pass = $creating && isset( $_POST['noconfirmation'] ) ? wp_unsl
 	</tr>
 	<tr class="form-field">
 		<th scope="row"><label for="url"><?php _e('Website') ?></label></th>
-		<td><input name="url" type="text" id="url" class="code" value="<?php echo esc_attr($new_user_uri); ?>" /></td>
+		<td><input name="url" type="url" id="url" class="code" value="<?php echo esc_attr( $new_user_uri ); ?>" /></td>
 	</tr>
 <?php
 /**
diff --git a/src/wp-login.php b/src/wp-login.php
index fe86fa1278..261b2551f0 100644
--- a/src/wp-login.php
+++ b/src/wp-login.php
@@ -681,14 +681,14 @@ case 'register' :
 	login_header(__('Registration Form'), '<p class="message register">' . __('Register For This Site') . '</p>', $errors);
 ?>
 
-<form name="registerform" id="registerform" action="<?php echo esc_url( site_url('wp-login.php?action=register', 'login_post') ); ?>" method="post">
+<form name="registerform" id="registerform" action="<?php echo esc_url( site_url('wp-login.php?action=register', 'login_post') ); ?>" method="post" novalidate="novalidate">
 	<p>
 		<label for="user_login"><?php _e('Username') ?><br />
 		<input type="text" name="user_login" id="user_login" class="input" value="<?php echo esc_attr(wp_unslash($user_login)); ?>" size="20" /></label>
 	</p>
 	<p>
 		<label for="user_email"><?php _e('E-mail') ?><br />
-		<input type="text" name="user_email" id="user_email" class="input" value="<?php echo esc_attr(wp_unslash($user_email)); ?>" size="25" /></label>
+		<input type="email" name="user_email" id="user_email" class="input" value="<?php echo esc_attr( wp_unslash( $user_email ) ); ?>" size="25" /></label>
 	</p>
 	<?php
 	/**
diff --git a/src/wp-signup.php b/src/wp-signup.php
index d69a7d0f81..6a4e5b6a46 100644
--- a/src/wp-signup.php
+++ b/src/wp-signup.php
@@ -188,7 +188,7 @@ function show_user_form($user_name = '', $user_email = '', $errors = '') {
 	<?php if ( $errmsg = $errors->get_error_message('user_email') ) { ?>
 		<p class="error"><?php echo $errmsg ?></p>
 	<?php } ?>
-	<input name="user_email" type="text" id="user_email" value="<?php  echo esc_attr($user_email) ?>" maxlength="200" /><br /><?php _e('We send your registration email to this address. (Double-check your email address before continuing.)') ?>
+	<input name="user_email" type="email" id="user_email" value="<?php  echo esc_attr($user_email) ?>" maxlength="200" /><br /><?php _e('We send your registration email to this address. (Double-check your email address before continuing.)') ?>
 	<?php
 	if ( $errmsg = $errors->get_error_message('generic') ) {
 		echo '<p class="error">' . $errmsg . '</p>';
@@ -435,7 +435,7 @@ function signup_user( $user_name = '', $user_email = '', $errors = '' ) {
 	?>
 
 	<h2><?php printf( __( 'Get your own %s account in seconds' ), get_current_site()->site_name ) ?></h2>
-	<form id="setupform" method="post" action="wp-signup.php">
+	<form id="setupform" method="post" action="wp-signup.php" novalidate="novalidate">
 		<input type="hidden" name="stage" value="validate-user-signup" />
 		<?php
 		/** This action is documented in wp-signup.php */