Index: src/wp-admin/css/common.css
===================================================================
--- src/wp-admin/css/common.css	(revision 37549)
+++ src/wp-admin/css/common.css	(working copy)
@@ -2173,6 +2173,7 @@
 
 .importers td {
 	padding-right: 14px;
+	line-height: 1.5em;
 }
 
 .importers {
@@ -2180,6 +2181,19 @@
 	width: auto;
 }
 
+.importer-title,
+.importer-desc,
+.importer-status,
+.importer-action {
+	display: block;
+	margin: 0;
+	padding: 0;
+}
+
+.importer-action {
+	margin-bottom: 1em;
+}
+
 #post-body #post-body-content #namediv h3, /* Back-compat for pre-4.4 */
 #post-body #post-body-content #namediv h2 {
 	margin-top: 0;
Index: src/wp-admin/import.php
===================================================================
--- src/wp-admin/import.php	(revision 37549)
+++ src/wp-admin/import.php	(working copy)
@@ -29,10 +29,12 @@
 	'<p>' . __('<a href="https://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'
 );
 
-if ( current_user_can( 'install_plugins' ) )
+if ( current_user_can( 'install_plugins' ) ) {
+	// List of popular importer plugins from the WordPress.org API.
 	$popular_importers = wp_get_popular_importers();
-else
-	$popular_importers = array();
+} else {
+ 	$popular_importers = array();
+}
 
 // Detect and redirect invalid importers like 'movabletype', which is registered as 'mt'
 if ( ! empty( $_GET['invalid'] ) && isset( $popular_importers[ $_GET['invalid'] ] ) ) {
@@ -64,7 +66,7 @@
 <p><?php _e('If you have posts or comments in another system, WordPress can import those into this site. To get started, choose a system to import from below:'); ?></p>
 
 <?php
-
+// Registered (already installed) importers. They're stored in the global $wp_importers.
 $importers = get_importers();
 
 // If a popular importer is not registered, create a dummy registration that links to the plugin installer.
@@ -73,6 +75,8 @@
 		continue;
 	if ( isset( $importers[ $pop_data['importer-id'] ] ) )
 		continue;
+
+	// Merge the importers from the WordPress.org API in the array of registered (already installed) importers.
 	$importers[ $pop_data['importer-id'] ] = array( $pop_data['name'], $pop_data['description'], 'install' => $pop_data['plugin-slug'] );
 }
 
@@ -85,37 +89,49 @@
 
 <?php
 	foreach ($importers as $importer_id => $data) {
-		$action = '';
+		$action = $status = $status_class = '';
+
 		if ( isset( $data['install'] ) ) {
 			$plugin_slug = $data['install'];
 			if ( file_exists( WP_PLUGIN_DIR . '/' . $plugin_slug ) ) {
-				// Looks like Importer is installed, But not active
+				// Looks like an importer is installed, but not active.
 				$plugins = get_plugins( '/' . $plugin_slug );
 				if ( !empty($plugins) ) {
 					$keys = array_keys($plugins);
 					$plugin_file = $plugin_slug . '/' . $keys[0];
-					$action = '<a href="' . esc_url(wp_nonce_url(admin_url('plugins.php?action=activate&plugin=' . $plugin_file . '&from=import'), 'activate-plugin_' . $plugin_file)) .
-											'"title="' . esc_attr__('Activate importer') . '"">' . $data[0] . '</a>';
+					$status = _x( 'Installed and not activated', 'importer plugin' );
+					$status_class = ' importer-inactive';
+					$action = '<a href="' . esc_url( wp_nonce_url( admin_url( 'plugins.php?action=activate&plugin=' . $plugin_file .
+						'&from=import' ), 'activate-plugin_' . $plugin_file ) ) . '">' . __( 'Activate and run the importer' ) . '</a>';
 				}
 			}
 			if ( empty($action) ) {
 				if ( is_main_site() ) {
 					$action = '<a href="' . esc_url( network_admin_url( 'plugin-install.php?tab=plugin-information&plugin=' . $plugin_slug .
-										'&from=import&TB_iframe=true&width=600&height=550' ) ) . '" class="thickbox open-plugin-details-modal" title="' .
-										esc_attr__('Install importer') . '">' . $data[0] . '</a>';
+						'&from=import&TB_iframe=true&width=600&height=550' ) ) . '" class="thickbox">' . __( 'Details and installation' ) . '</a>';
 				} else {
-					$action = $data[0];
-					$data[1] = sprintf( __( 'This importer is not installed. Please install importers from <a href="%s">the main site</a>.' ), get_admin_url( $current_site->blog_id, 'import.php' ) );
+					$action = sprintf( __( 'This importer is not installed. Please install importers from <a href="%s">the main site</a>.' ),
+						get_admin_url( $current_site->blog_id, 'import.php' )
+					);
 				}
+				$status = _x( 'Not installed', 'importer plugin' );
 			}
 		} else {
-			$action = "<a href='" . esc_url( "admin.php?import=$importer_id" ) . "' title='" . esc_attr( wptexturize( strip_tags( $data[1] ) ) ) ."'>{$data[0]}</a>";
+			$action = '<a href="' . esc_url( 'admin.php?import=$importer_id' ) . '">' . __( 'Run the importer' ) . '</a>';
+			$status = _x( 'Installed and activated', 'importer plugin' );
+			$status_class = ' importer-active';
 		}
 
 		echo "
-			<tr>
-				<td class='import-system row-title'>$action</td>
-				<td class='desc'>{$data[1]}</td>
+			<tr class='importer-item{$status_class}'>
+				<td class='import-system'>
+					<span class='importer-title row-title'>{$data[0]}</span>
+					<span class='importer-status'>{$status}</span>
+				</td>
+				<td class='desc'>
+					<span class='importer-desc'>{$data[1]}</span>
+					<span class='importer-action'>{$action}</span>
+				</td>
 			</tr>";
 	}
 ?>
Index: src/wp-admin/includes/import.php
===================================================================
--- src/wp-admin/includes/import.php	(revision 37549)
+++ src/wp-admin/includes/import.php	(working copy)
@@ -157,49 +157,49 @@
 		// slug => name, description, plugin slug, and register_importer() slug
 		'blogger' => array(
 			'name' => __( 'Blogger' ),
-			'description' => __( 'Install the Blogger importer to import posts, comments, and users from a Blogger blog.' ),
+			'description' => __( 'Import posts, comments, and users from a Blogger blog.' ),
 			'plugin-slug' => 'blogger-importer',
 			'importer-id' => 'blogger',
 		),
 		'wpcat2tag' => array(
 			'name' => __( 'Categories and Tags Converter' ),
-			'description' => __( 'Install the category/tag converter to convert existing categories to tags or tags to categories, selectively.' ),
+			'description' => __( 'Convert existing categories to tags or tags to categories, selectively.' ),
 			'plugin-slug' => 'wpcat2tag-importer',
 			'importer-id' => 'wp-cat2tag',
 		),
 		'livejournal' => array(
 			'name' => __( 'LiveJournal' ),
-			'description' => __( 'Install the LiveJournal importer to import posts from LiveJournal using their API.' ),
+			'description' => __( 'Import posts from LiveJournal using their API.' ),
 			'plugin-slug' => 'livejournal-importer',
 			'importer-id' => 'livejournal',
 		),
 		'movabletype' => array(
 			'name' => __( 'Movable Type and TypePad' ),
-			'description' => __( 'Install the Movable Type importer to import posts and comments from a Movable Type or TypePad blog.' ),
+			'description' => __( 'Import posts and comments from a Movable Type or TypePad blog.' ),
 			'plugin-slug' => 'movabletype-importer',
 			'importer-id' => 'mt',
 		),
 		'opml' => array(
 			'name' => __( 'Blogroll' ),
-			'description' => __( 'Install the blogroll importer to import links in OPML format.' ),
+			'description' => __( 'Import links in OPML format.' ),
 			'plugin-slug' => 'opml-importer',
 			'importer-id' => 'opml',
 		),
 		'rss' => array(
 			'name' => __( 'RSS' ),
-			'description' => __( 'Install the RSS importer to import posts from an RSS feed.' ),
+			'description' => __( 'Import posts from an RSS feed.' ),
 			'plugin-slug' => 'rss-importer',
 			'importer-id' => 'rss',
 		),
 		'tumblr' => array(
 			'name' => __( 'Tumblr' ),
-			'description' => __( 'Install the Tumblr importer to import posts &amp; media from Tumblr using their API.' ),
+			'description' => __( 'Import posts &amp; media from Tumblr using their API.' ),
 			'plugin-slug' => 'tumblr-importer',
 			'importer-id' => 'tumblr',
 		),
 		'wordpress' => array(
 			'name' => 'WordPress',
-			'description' => __( 'Install the WordPress importer to import posts, pages, comments, custom fields, categories, and tags from a WordPress export file.' ),
+			'description' => __( 'Import posts, pages, comments, custom fields, categories, and tags from a WordPress export file.' ),
 			'plugin-slug' => 'wordpress-importer',
 			'importer-id' => 'wordpress',
 		),